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I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses all the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What objecta would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses all the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What objecta would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses all the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What objecta object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 12/21  01:00:00    22.48504471
 12/21  02:00:00    22.48504471
 12/21  03:00:00    22.48504482
 12/21  04:00:00    22.4850445
 12/21  05:00:00    22.48504492
 12/21  06:00:00    22.48504441
 12/21  07:00:00    22.4850446
 12/21  08:00:00    22.48504482
 12/21  09:00:00    22.48504492
 12/21  10:00:00    22.48504482
 12/21  11:00:00    22.48504482
 12/21  12:00:00    22.48504461
 12/21  13:00:00    22.4850445
 12/21  14:00:00    22.48504503
 12/21  15:00:00    22.48504482
 12/21  16:00:00    22.48504482
 12/21  17:00:00    22.48504461
 12/21  18:00:00    22.48504471
 12/21  19:00:00    22.48504466
 12/21  20:00:00    22.48504469
 12/21  21:00:00    22.48504481
 12/21  22:00:00    22.48504482
 12/21  23:00:00    22.48504455
 12/21  24:00:00    22.48504461
 08/21  01:00:00    35.83543615
 08/21  02:00:00    35.835436
 08/21  03:00:00    35.8354359
 08/21  04:00:00    35.83543573
 08/21  05:00:00    35.83543556
 08/21  06:00:00    35.83543589
 08/21  07:00:00    35.83543569
 08/21  08:00:00    35.83543565
 08/21  09:00:00    35.83543556
 08/21  10:00:00    35.83543556
 08/21  11:00:00    35.83543506
 08/21  12:00:00    35.83543556
 08/21  13:00:00    35.83543556
 08/21  14:00:00    35.83543606
 08/21  15:00:00    35.83543456
 08/21  16:00:00    35.83543556
 08/21  17:00:00    35.83543606
 08/21  18:00:00    35.83543506
 08/21  19:00:00    35.83543456
 08/21  20:00:00    35.83543506
 08/21  21:00:00    35.83543506
 08/21  22:00:00    35.83543556
 08/21  23:00:00    35.83543572
 08/21  24:00:00    35.83543569
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153
 01/02  01:00:00    29.99843125
 01/02  02:00:00    29.99843139
 01/02  03:00:00    29.99843139
 01/02  04:00:00    29.99843111
 01/02  05:00:00    29.99843111
 01/02  06:00:00    29.99843152
 01/02  07:00:00    30.01718048
 01/02  08:00:00    30.0471794
 01/02  09:00:00    30.07717699
 01/02  10:00:00    30.10717556
 01/02  11:00:00    30.11842511
 01/02  12:00:00    30.09967666
 01/02  13:00:00    30.08842654
 01/02  14:00:00    30.0696778
 01/02  15:00:00    30.07717741
 01/02  16:00:00    30.0884264
 01/02  17:00:00    30.08842696
 01/02  18:00:00    30.08842724
 01/02  19:00:00    30.1071757
 01/02  20:00:00    30.11842511
 01/02  21:00:00    30.11842511
 01/02  22:00:00    30.13717442
 01/02  23:00:00    30.12967488
 01/02  24:00:00    30.13717371
 01/03  01:00:00    30.12967467
 01/03  02:00:00    30.11842525
 01/03  03:00:00    30.11842554
 01/03  04:00:00    30.11842525
 01/03  05:00:00    30.13717413
 01/03  06:00:00    30.16717209
 01/03  07:00:00    30.17842206
 01/03  08:00:00    30.19717142
 01/03  09:00:00    30.20842041
 01/03  10:00:00    30.22716915
 01/03  11:00:00    30.23841898
 01/03  12:00:00    30.21967038
 01/03  13:00:00    30.20842069
 01/03  14:00:00    30.18967181
 01/03  15:00:00    30.17842254
 01/03  16:00:00    30.1784217
 01/03  17:00:00    30.17842113
 01/03  18:00:00    30.19717156
 01/03  19:00:00    30.20842027
 01/03  20:00:00    30.22716943
 01/03  21:00:00    30.23841828
 01/03  22:00:00    30.23841828
 01/03  23:00:00    30.25716811
 01/03  24:00:00    30.24966797
 01/04  01:00:00    30.21966982
 01/04  02:00:00    30.20842041
 01/04  03:00:00    30.22716985
 01/04  04:00:00    30.21966954
 01/04  05:00:00    30.20842041
 01/04  06:00:00    30.20842015
 01/04  07:00:00    30.20842097
 01/04  08:00:00    30.22716957
 01/04  09:00:00    30.23841916
 01/04  10:00:00    30.23841969
 01/04  11:00:00    30.21967067
 01/04  12:00:00    30.17092321
 01/04  13:00:00    30.12967537
 01/04  14:00:00    30.09967694
 01/04  15:00:00    30.06967851
 01/04  16:00:00    30.05842909
 01/04  17:00:00    30.05842853
 01/04  18:00:00    30.05842909
 01/04  19:00:00    30.05842909
 01/04  20:00:00    30.03968007
 01/04  21:00:00    30.02843066
 01/04  22:00:00    30.02843052
 01/04  23:00:00    30.02843066
 01/04  24:00:00    30.00968136
 01/05  01:00:00    29.97968279
 01/05  02:00:00    29.9684338
 01/05  03:00:00    29.96843324
 01/05  04:00:00    29.94968478
 01/05  05:00:00    29.93843508
 01/05  06:00:00    29.93843508
 01/05  07:00:00    29.93843515
 01/05  08:00:00    29.9571841
 01/05  09:00:00    29.98718282
 01/05  10:00:00    29.99843139
 01/05  11:00:00    29.97968293
 01/05  12:00:00    29.94968436
 01/05  13:00:00    29.9196862
 01/05  14:00:00    29.90843651
 01/05  15:00:00    29.90843665
 01/05  16:00:00    29.92718539
 01/05  17:00:00    29.93843467
 01/05  18:00:00    29.93843439
 01/05  19:00:00    29.95718397
 01/05  20:00:00    29.9684331
 01/05  21:00:00    29.98718268
 01/05  22:00:00    29.99843181
 01/05  23:00:00    30.01718083
 01/05  24:00:00    30.02842996
 01/06  01:00:00    30.02843024
 01/06  02:00:00    30.04717926
 01/06  03:00:00    30.05842867
 01/06  04:00:00    30.05842881
 01/06  05:00:00    30.07717797
 01/06  06:00:00    30.10717598
 01/06  07:00:00    30.11842544
 01/06  08:00:00    30.13717427
 01/06  09:00:00    30.16717285
 01/06  10:00:00    30.19717184
 01/06  11:00:00    30.18967153
 01/06  12:00:00    30.1784224
 01/06  13:00:00    30.15967338
 01/06  14:00:00    30.14842383
 01/06  15:00:00    30.1484234
 01/06  16:00:00    30.14842355
 01/06  17:00:00    30.14842298
 01/06  18:00:00    30.16717285
 01/06  19:00:00    30.1784217
 01/06  20:00:00    30.17842184
 01/06  21:00:00    30.1784224
 01/06  22:00:00    30.17842212
 01/06  23:00:00    30.17842215
 01/06  24:00:00    30.15967338
 01/07  01:00:00    30.14842411
 01/07  02:00:00    30.12967424
 01/07  03:00:00    30.11842582
 01/07  04:00:00    30.13717456
 01/07  05:00:00    30.12967481
 01/07  06:00:00    30.13717385
 01/07  07:00:00    30.14842386
 01/07  08:00:00    30.14842425
 01/07  09:00:00    30.16717228
 01/07  10:00:00    30.17842254
 01/07  11:00:00    30.17842226
 01/07  12:00:00    30.15967296
 01/07  13:00:00    30.12967509
 01/07  14:00:00    30.0996768
 01/07  15:00:00    30.08842668
 01/07  16:00:00    30.0884271
 01/07  17:00:00    30.08842668
 01/07  18:00:00    30.08842668
 01/07  19:00:00    30.08842696
 01/07  20:00:00    30.08842626
 01/07  21:00:00    30.08842696
 01/07  22:00:00    30.0884271
 01/07  23:00:00    30.08842724
 01/07  24:00:00    30.06967808
 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046
 07/02  01:00:00    36.12686096
 07/02  02:00:00    36.12686096
 07/02  03:00:00    36.12686096
 07/02  04:00:00    36.12685995
 07/02  05:00:00    36.12685978
 07/02  06:00:00    36.1268608
 07/02  07:00:00    36.14955326
 07/02  08:00:00    36.16316861
 07/02  09:00:00    36.16316949
 07/02  10:00:00    36.16316884
 07/02  11:00:00    36.16316894
 07/02  12:00:00    36.16316904
 07/02  13:00:00    36.16316886
 07/02  14:00:00    36.14047618
 07/02  15:00:00    36.12686033
 07/02  16:00:00    36.12686028
 07/02  17:00:00    36.12686031
 07/02  18:00:00    36.12686061
 07/02  19:00:00    36.12686033
 07/02  20:00:00    36.1268608
 07/02  21:00:00    36.13981066
 07/02  22:00:00    36.12534957
 07/02  23:00:00    36.11940171
 07/02  24:00:00    36.1194112
 07/03  01:00:00    36.11941053
 07/03  02:00:00    36.09674591
 07/03  03:00:00    36.08314589
 07/03  04:00:00    36.08314577
 07/03  05:00:00    36.10581127
 07/03  06:00:00    36.11941074
 07/03  07:00:00    36.14207582
 07/03  08:00:00    36.15567466
 07/03  09:00:00    36.15567516
 07/03  10:00:00    36.15567533
 07/03  11:00:00    36.15567525
 07/03  12:00:00    36.15567491
 07/03  13:00:00    36.13300987
 07/03  14:00:00    36.11941095
 07/03  15:00:00    36.1194112
 07/03  16:00:00    36.11941069
 07/03  17:00:00    36.0967449
 07/03  18:00:00    36.08314572
 07/03  19:00:00    36.08314648
 07/03  20:00:00    36.10581101
 07/03  21:00:00    36.11941069
 07/03  22:00:00    36.11940994
 07/03  23:00:00    36.11941019
 07/03  24:00:00    36.11941036
 07/04  01:00:00    36.11941086
 07/04  02:00:00    36.11941086
 07/04  03:00:00    36.11941002
 07/04  04:00:00    36.11940985
 07/04  05:00:00    36.11933984
 07/04  06:00:00    36.12153371
 07/04  07:00:00    36.11364399
 07/04  08:00:00    36.11369359
 07/04  09:00:00    36.1136946
 07/04  10:00:00    36.11369446
 07/04  11:00:00    36.11369484
 07/04  12:00:00    36.11369441
 07/04  13:00:00    36.09105561
 07/04  14:00:00    36.07747228
 07/04  15:00:00    36.07747258
 07/04  16:00:00    36.05483345
 07/04  17:00:00    36.04125009
 07/04  18:00:00    36.0412497
 07/04  19:00:00    36.04124935
 07/04  20:00:00    36.04124957
 07/04  21:00:00    36.0412502
 07/04  22:00:00    36.04125004
 07/04  23:00:00    36.04124987
 07/04  24:00:00    36.04125004
 07/05  01:00:00    36.04124987
 07/05  02:00:00    36.04125037
 07/05  03:00:00    36.0412497
 07/05  04:00:00    36.04124936
 07/05  05:00:00    36.0412497
 07/05  06:00:00    36.04124991
 07/05  07:00:00    36.04125004
 07/05  08:00:00    36.0412502
 07/05  09:00:00    36.04124953
 07/05  10:00:00    36.06388884
 07/05  11:00:00    36.05483292
 07/05  12:00:00    36.04124945
 07/05  13:00:00    36.04125004
 07/05  14:00:00    36.04125054
 07/05  15:00:00    36.01861106
 07/05  16:00:00    36.00502667
 07/05  17:00:00    35.9823887
 07/05  18:00:00    35.96880431
 07/05  19:00:00    35.96880506
 07/05  20:00:00    35.96880481
 07/05  21:00:00    35.99144379
 07/05  22:00:00    35.99912995
 07/05  23:00:00    35.95881037
 07/05  24:00:00    35.94770478
 07/06  01:00:00    35.81016103
 07/06  02:00:00    35.57496488
 07/06  03:00:00    35.55758753
 07/06  04:00:00    35.55241445
 07/06  05:00:00    35.55244833
 07/06  06:00:00    35.57480237
 07/06  07:00:00    35.58821505
 07/06  08:00:00    35.61056912
 07/06  09:00:00    35.60162753
 07/06  10:00:00    35.58821455
 07/06  11:00:00    35.58821439
 07/06  12:00:00    35.58821513
 07/06  13:00:00    35.58821488
 07/06  14:00:00    35.58821538
 07/06  15:00:00    35.58821513
 07/06  16:00:00    35.58821463
 07/06  17:00:00    35.56585973
 07/06  18:00:00    35.55244734
 07/06  19:00:00    35.55244758
 07/06  20:00:00    35.57480174
 07/06  21:00:00    35.58821513
 07/06  22:00:00    35.5882148
 07/06  23:00:00    35.58821472
 07/06  24:00:00    35.58821488
 07/07  01:00:00    35.58821522
 07/07  02:00:00    35.58821522
 07/07  03:00:00    35.58821505
 07/07  04:00:00    35.58821434
 07/07  05:00:00    35.58821452
 07/07  06:00:00    35.58821443
 07/07  07:00:00    35.61056929
 07/07  08:00:00    35.62398143
 07/07  09:00:00    35.62398177
 07/07  10:00:00    35.6239821
 07/07  11:00:00    35.6239816
 07/07  12:00:00    35.62398177
 07/07  13:00:00    35.62398193
 07/07  14:00:00    35.62398094
 07/07  15:00:00    35.62398218
 07/07  16:00:00    35.62398168
 07/07  17:00:00    35.60162753
 07/07  18:00:00    35.58821463
 07/07  19:00:00    35.58821463
 07/07  20:00:00    35.61056929
 07/07  21:00:00    35.62398193
 07/07  22:00:00    35.64633584
 07/07  23:00:00    35.63739458
 07/07  24:00:00    35.62398127

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses all much of the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

POST SCRIPT
Providing some data from the simulation, the humidity can get quite low if there is there is no humidifier present. These are the relative humidity values for the two design days, the first week of January, and the first week of July in a data center that does not possess a humidifier.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 12/21  01:00:00    22.48504471
 12/21  02:00:00    22.48504471
 12/21  03:00:00    22.48504482
 12/21  04:00:00    22.4850445
 12/21  05:00:00    22.48504492
 12/21  06:00:00    22.48504441
 12/21  07:00:00    22.4850446
 12/21  08:00:00    22.48504482
 12/21  09:00:00    22.48504492
 12/21  10:00:00    22.48504482
 12/21  11:00:00    22.48504482
 12/21  12:00:00    22.48504461
 12/21  13:00:00    22.4850445
 12/21  14:00:00    22.48504503
 12/21  15:00:00    22.48504482
 12/21  16:00:00    22.48504482
 12/21  17:00:00    22.48504461
 12/21  18:00:00    22.48504471
 12/21  19:00:00    22.48504466
 12/21  20:00:00    22.48504469
 12/21  21:00:00    22.48504481
 12/21  22:00:00    22.48504482
 12/21  23:00:00    22.48504455
 12/21  24:00:00    22.48504461
 08/21  01:00:00    35.83543615
 08/21  02:00:00    35.835436
 08/21  03:00:00    35.8354359
 08/21  04:00:00    35.83543573
 08/21  05:00:00    35.83543556
 08/21  06:00:00    35.83543589
 08/21  07:00:00    35.83543569
 08/21  08:00:00    35.83543565
 08/21  09:00:00    35.83543556
 08/21  10:00:00    35.83543556
 08/21  11:00:00    35.83543506
 08/21  12:00:00    35.83543556
 08/21  13:00:00    35.83543556
 08/21  14:00:00    35.83543606
 08/21  15:00:00    35.83543456
 08/21  16:00:00    35.83543556
 08/21  17:00:00    35.83543606
 08/21  18:00:00    35.83543506
 08/21  19:00:00    35.83543456
 08/21  20:00:00    35.83543506
 08/21  21:00:00    35.83543506
 08/21  22:00:00    35.83543556
 08/21  23:00:00    35.83543572
 08/21  24:00:00    35.83543569
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153
 01/02  01:00:00    29.99843125
 01/02  02:00:00    29.99843139
 01/02  03:00:00    29.99843139
 01/02  04:00:00    29.99843111
 01/02  05:00:00    29.99843111
 01/02  06:00:00    29.99843152
 01/02  07:00:00    30.01718048
 01/02  08:00:00    30.0471794
 01/02  09:00:00    30.07717699
 01/02  10:00:00    30.10717556
 01/02  11:00:00    30.11842511
 01/02  12:00:00    30.09967666
 01/02  13:00:00    30.08842654
 01/02  14:00:00    30.0696778
 01/02  15:00:00    30.07717741
 01/02  16:00:00    30.0884264
 01/02  17:00:00    30.08842696
 01/02  18:00:00    30.08842724
 01/02  19:00:00    30.1071757
 01/02  20:00:00    30.11842511
 01/02  21:00:00    30.11842511
 01/02  22:00:00    30.13717442
 01/02  23:00:00    30.12967488
 01/02  24:00:00    30.13717371
 01/03  01:00:00    30.12967467
 01/03  02:00:00    30.11842525
 01/03  03:00:00    30.11842554
 01/03  04:00:00    30.11842525
 01/03  05:00:00    30.13717413
 01/03  06:00:00    30.16717209
 01/03  07:00:00    30.17842206
 01/03  08:00:00    30.19717142
 01/03  09:00:00    30.20842041
 01/03  10:00:00    30.22716915
 01/03  11:00:00    30.23841898
 01/03  12:00:00    30.21967038
 01/03  13:00:00    30.20842069
 01/03  14:00:00    30.18967181
 01/03  15:00:00    30.17842254
 01/03  16:00:00    30.1784217
 01/03  17:00:00    30.17842113
 01/03  18:00:00    30.19717156
 01/03  19:00:00    30.20842027
 01/03  20:00:00    30.22716943
 01/03  21:00:00    30.23841828
 01/03  22:00:00    30.23841828
 01/03  23:00:00    30.25716811
 01/03  24:00:00    30.24966797
 01/04  01:00:00    30.21966982
 01/04  02:00:00    30.20842041
 01/04  03:00:00    30.22716985
 01/04  04:00:00    30.21966954
 01/04  05:00:00    30.20842041
 01/04  06:00:00    30.20842015
 01/04  07:00:00    30.20842097
 01/04  08:00:00    30.22716957
 01/04  09:00:00    30.23841916
 01/04  10:00:00    30.23841969
 01/04  11:00:00    30.21967067
 01/04  12:00:00    30.17092321
 01/04  13:00:00    30.12967537
 01/04  14:00:00    30.09967694
 01/04  15:00:00    30.06967851
 01/04  16:00:00    30.05842909
 01/04  17:00:00    30.05842853
 01/04  18:00:00    30.05842909
 01/04  19:00:00    30.05842909
 01/04  20:00:00    30.03968007
 01/04  21:00:00    30.02843066
 01/04  22:00:00    30.02843052
 01/04  23:00:00    30.02843066
 01/04  24:00:00    30.00968136
 01/05  01:00:00    29.97968279
 01/05  02:00:00    29.9684338
 01/05  03:00:00    29.96843324
 01/05  04:00:00    29.94968478
 01/05  05:00:00    29.93843508
 01/05  06:00:00    29.93843508
 01/05  07:00:00    29.93843515
 01/05  08:00:00    29.9571841
 01/05  09:00:00    29.98718282
 01/05  10:00:00    29.99843139
 01/05  11:00:00    29.97968293
 01/05  12:00:00    29.94968436
 01/05  13:00:00    29.9196862
 01/05  14:00:00    29.90843651
 01/05  15:00:00    29.90843665
 01/05  16:00:00    29.92718539
 01/05  17:00:00    29.93843467
 01/05  18:00:00    29.93843439
 01/05  19:00:00    29.95718397
 01/05  20:00:00    29.9684331
 01/05  21:00:00    29.98718268
 01/05  22:00:00    29.99843181
 01/05  23:00:00    30.01718083
 01/05  24:00:00    30.02842996
 01/06  01:00:00    30.02843024
 01/06  02:00:00    30.04717926
 01/06  03:00:00    30.05842867
 01/06  04:00:00    30.05842881
 01/06  05:00:00    30.07717797
 01/06  06:00:00    30.10717598
 01/06  07:00:00    30.11842544
 01/06  08:00:00    30.13717427
 01/06  09:00:00    30.16717285
 01/06  10:00:00    30.19717184
 01/06  11:00:00    30.18967153
 01/06  12:00:00    30.1784224
 01/06  13:00:00    30.15967338
 01/06  14:00:00    30.14842383
 01/06  15:00:00    30.1484234
 01/06  16:00:00    30.14842355
 01/06  17:00:00    30.14842298
 01/06  18:00:00    30.16717285
 01/06  19:00:00    30.1784217
 01/06  20:00:00    30.17842184
 01/06  21:00:00    30.1784224
 01/06  22:00:00    30.17842212
 01/06  23:00:00    30.17842215
 01/06  24:00:00    30.15967338
 01/07  01:00:00    30.14842411
 01/07  02:00:00    30.12967424
 01/07  03:00:00    30.11842582
 01/07  04:00:00    30.13717456
 01/07  05:00:00    30.12967481
 01/07  06:00:00    30.13717385
 01/07  07:00:00    30.14842386
 01/07  08:00:00    30.14842425
 01/07  09:00:00    30.16717228
 01/07  10:00:00    30.17842254
 01/07  11:00:00    30.17842226
 01/07  12:00:00    30.15967296
 01/07  13:00:00    30.12967509
 01/07  14:00:00    30.0996768
 01/07  15:00:00    30.08842668
 01/07  16:00:00    30.0884271
 01/07  17:00:00    30.08842668
 01/07  18:00:00    30.08842668
 01/07  19:00:00    30.08842696
 01/07  20:00:00    30.08842626
 01/07  21:00:00    30.08842696
 01/07  22:00:00    30.0884271
 01/07  23:00:00    30.08842724
 01/07  24:00:00    30.06967808
 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046
 07/02  01:00:00    36.12686096
 07/02  02:00:00    36.12686096
 07/02  03:00:00    36.12686096
 07/02  04:00:00    36.12685995
 07/02  05:00:00    36.12685978
 07/02  06:00:00    36.1268608
 07/02  07:00:00    36.14955326
 07/02  08:00:00    36.16316861
 07/02  09:00:00    36.16316949
 07/02  10:00:00    36.16316884
 07/02  11:00:00    36.16316894
 07/02  12:00:00    36.16316904
 07/02  13:00:00    36.16316886
 07/02  14:00:00    36.14047618
 07/02  15:00:00    36.12686033
 07/02  16:00:00    36.12686028
 07/02  17:00:00    36.12686031
 07/02  18:00:00    36.12686061
 07/02  19:00:00    36.12686033
 07/02  20:00:00    36.1268608
 07/02  21:00:00    36.13981066
 07/02  22:00:00    36.12534957
 07/02  23:00:00    36.11940171
 07/02  24:00:00    36.1194112
 07/03  01:00:00    36.11941053
 07/03  02:00:00    36.09674591
 07/03  03:00:00    36.08314589
 07/03  04:00:00    36.08314577
 07/03  05:00:00    36.10581127
 07/03  06:00:00    36.11941074
 07/03  07:00:00    36.14207582
 07/03  08:00:00    36.15567466
 07/03  09:00:00    36.15567516
 07/03  10:00:00    36.15567533
 07/03  11:00:00    36.15567525
 07/03  12:00:00    36.15567491
 07/03  13:00:00    36.13300987
 07/03  14:00:00    36.11941095
 07/03  15:00:00    36.1194112
 07/03  16:00:00    36.11941069
 07/03  17:00:00    36.0967449
 07/03  18:00:00    36.08314572
 07/03  19:00:00    36.08314648
 07/03  20:00:00    36.10581101
 07/03  21:00:00    36.11941069
 07/03  22:00:00    36.11940994
 07/03  23:00:00    36.11941019
 07/03  24:00:00    36.11941036
 07/04  01:00:00    36.11941086
 07/04  02:00:00    36.11941086
 07/04  03:00:00    36.11941002
 07/04  04:00:00    36.11940985
 07/04  05:00:00    36.11933984
 07/04  06:00:00    36.12153371
 07/04  07:00:00    36.11364399
 07/04  08:00:00    36.11369359
 07/04  09:00:00    36.1136946
 07/04  10:00:00    36.11369446
 07/04  11:00:00    36.11369484
 07/04  12:00:00    36.11369441
 07/04  13:00:00    36.09105561
 07/04  14:00:00    36.07747228
 07/04  15:00:00    36.07747258
 07/04  16:00:00    36.05483345
 07/04  17:00:00    36.04125009
 07/04  18:00:00    36.0412497
 07/04  19:00:00    36.04124935
 07/04  20:00:00    36.04124957
 07/04  21:00:00    36.0412502
 07/04  22:00:00    36.04125004
 07/04  23:00:00    36.04124987
 07/04  24:00:00    36.04125004
 07/05  01:00:00    36.04124987
 07/05  02:00:00    36.04125037
 07/05  03:00:00    36.0412497
 07/05  04:00:00    36.04124936
 07/05  05:00:00    36.0412497
 07/05  06:00:00    36.04124991
 07/05  07:00:00    36.04125004
 07/05  08:00:00    36.0412502
 07/05  09:00:00    36.04124953
 07/05  10:00:00    36.06388884
 07/05  11:00:00    36.05483292
 07/05  12:00:00    36.04124945
 07/05  13:00:00    36.04125004
 07/05  14:00:00    36.04125054
 07/05  15:00:00    36.01861106
 07/05  16:00:00    36.00502667
 07/05  17:00:00    35.9823887
 07/05  18:00:00    35.96880431
 07/05  19:00:00    35.96880506
 07/05  20:00:00    35.96880481
 07/05  21:00:00    35.99144379
 07/05  22:00:00    35.99912995
 07/05  23:00:00    35.95881037
 07/05  24:00:00    35.94770478
 07/06  01:00:00    35.81016103
 07/06  02:00:00    35.57496488
 07/06  03:00:00    35.55758753
 07/06  04:00:00    35.55241445
 07/06  05:00:00    35.55244833
 07/06  06:00:00    35.57480237
 07/06  07:00:00    35.58821505
 07/06  08:00:00    35.61056912
 07/06  09:00:00    35.60162753
 07/06  10:00:00    35.58821455
 07/06  11:00:00    35.58821439
 07/06  12:00:00    35.58821513
 07/06  13:00:00    35.58821488
 07/06  14:00:00    35.58821538
 07/06  15:00:00    35.58821513
 07/06  16:00:00    35.58821463
 07/06  17:00:00    35.56585973
 07/06  18:00:00    35.55244734
 07/06  19:00:00    35.55244758
 07/06  20:00:00    35.57480174
 07/06  21:00:00    35.58821513
 07/06  22:00:00    35.5882148
 07/06  23:00:00    35.58821472
 07/06  24:00:00    35.58821488
 07/07  01:00:00    35.58821522
 07/07  02:00:00    35.58821522
 07/07  03:00:00    35.58821505
 07/07  04:00:00    35.58821434
 07/07  05:00:00    35.58821452
 07/07  06:00:00    35.58821443
 07/07  07:00:00    35.61056929
 07/07  08:00:00    35.62398143
 07/07  09:00:00    35.62398177
 07/07  10:00:00    35.6239821
 07/07  11:00:00    35.6239816
 07/07  12:00:00    35.62398177
 07/07  13:00:00    35.62398193
 07/07  14:00:00    35.62398094
 07/07  15:00:00    35.62398218
 07/07  16:00:00    35.62398168
 07/07  17:00:00    35.60162753
 07/07  18:00:00    35.58821463
 07/07  19:00:00    35.58821463
 07/07  20:00:00    35.61056929
 07/07  21:00:00    35.62398193
 07/07  22:00:00    35.64633584
 07/07  23:00:00    35.63739458
 07/07  24:00:00    35.62398127

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses much of the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

POST SCRIPT
Providing some data from the simulation, the humidity can get quite low if there is there is no humidifier present. These are the relative humidity values for the two design days, the first week of January, and the first week of July in a data center that does not possess a humidifier.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 12/21  01:00:00    22.48504471
 12/21  02:00:00    22.48504471
 12/21  03:00:00    22.48504482
 12/21  04:00:00    22.4850445
 12/21  05:00:00    22.48504492
 12/21  06:00:00    22.48504441
 12/21  07:00:00    22.4850446
 12/21  08:00:00    22.48504482
 12/21  09:00:00    22.48504492
 12/21  10:00:00    22.48504482
 12/21  11:00:00    22.48504482
 12/21  12:00:00    22.48504461
 12/21  13:00:00    22.4850445
 12/21  14:00:00    22.48504503
 12/21  15:00:00    22.48504482
 12/21  16:00:00    22.48504482
 12/21  17:00:00    22.48504461
 12/21  18:00:00    22.48504471
 12/21  19:00:00    22.48504466
 12/21  20:00:00    22.48504469
 12/21  21:00:00    22.48504481
 12/21  22:00:00    22.48504482
 12/21  23:00:00    22.48504455
 12/21  24:00:00    22.48504461
 08/21  01:00:00    35.83543615
 08/21  02:00:00    35.835436
 08/21  03:00:00    35.8354359
 08/21  04:00:00    35.83543573
 08/21  05:00:00    35.83543556
 08/21  06:00:00    35.83543589
 08/21  07:00:00    35.83543569
 08/21  08:00:00    35.83543565
 08/21  09:00:00    35.83543556
 08/21  10:00:00    35.83543556
 08/21  11:00:00    35.83543506
 08/21  12:00:00    35.83543556
 08/21  13:00:00    35.83543556
 08/21  14:00:00    35.83543606
 08/21  15:00:00    35.83543456
 08/21  16:00:00    35.83543556
 08/21  17:00:00    35.83543606
 08/21  18:00:00    35.83543506
 08/21  19:00:00    35.83543456
 08/21  20:00:00    35.83543506
 08/21  21:00:00    35.83543506
 08/21  22:00:00    35.83543556
 08/21  23:00:00    35.83543572
 08/21  24:00:00    35.83543569
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153
 01/02  01:00:00    29.99843125
 01/02  02:00:00    29.99843139
 01/02  03:00:00    29.99843139
 01/02  04:00:00    29.99843111
 01/02  05:00:00    29.99843111
 01/02  06:00:00    29.99843152
 01/02  07:00:00    30.01718048
 01/02  08:00:00    30.0471794
 01/02  09:00:00    30.07717699
 01/02  10:00:00    30.10717556
 01/02  11:00:00    30.11842511
 01/02  12:00:00    30.09967666
 01/02  13:00:00    30.08842654
 01/02  14:00:00    30.0696778
 01/02  15:00:00    30.07717741
 01/02  16:00:00    30.0884264
 01/02  17:00:00    30.08842696
 01/02  18:00:00    30.08842724
 01/02  19:00:00    30.1071757
 01/02  20:00:00    30.11842511
 01/02  21:00:00    30.11842511
 01/02  22:00:00    30.13717442
 01/02  23:00:00    30.12967488
 01/02  24:00:00    30.13717371
 01/03  01:00:00    30.12967467
 01/03  02:00:00    30.11842525
 01/03  03:00:00    30.11842554
 01/03  04:00:00    30.11842525
 01/03  05:00:00    30.13717413
 01/03  06:00:00    30.16717209
 01/03  07:00:00    30.17842206
 01/03  08:00:00    30.19717142
 01/03  09:00:00    30.20842041
 01/03  10:00:00    30.22716915
 01/03  11:00:00    30.23841898
 01/03  12:00:00    30.21967038
 01/03  13:00:00    30.20842069
 01/03  14:00:00    30.18967181
 01/03  15:00:00    30.17842254
 01/03  16:00:00    30.1784217
 01/03  17:00:00    30.17842113
 01/03  18:00:00    30.19717156
 01/03  19:00:00    30.20842027
 01/03  20:00:00    30.22716943
 01/03  21:00:00    30.23841828
 01/03  22:00:00    30.23841828
 01/03  23:00:00    30.25716811
 01/03  24:00:00    30.24966797
 01/04  01:00:00    30.21966982
 01/04  02:00:00    30.20842041
 01/04  03:00:00    30.22716985
 01/04  04:00:00    30.21966954
 01/04  05:00:00    30.20842041
 01/04  06:00:00    30.20842015
 01/04  07:00:00    30.20842097
 01/04  08:00:00    30.22716957
 01/04  09:00:00    30.23841916
 01/04  10:00:00    30.23841969
 01/04  11:00:00    30.21967067
 01/04  12:00:00    30.17092321
 01/04  13:00:00    30.12967537
 01/04  14:00:00    30.09967694
 01/04  15:00:00    30.06967851
 01/04  16:00:00    30.05842909
 01/04  17:00:00    30.05842853
 01/04  18:00:00    30.05842909
 01/04  19:00:00    30.05842909
 01/04  20:00:00    30.03968007
 01/04  21:00:00    30.02843066
 01/04  22:00:00    30.02843052
 01/04  23:00:00    30.02843066
 01/04  24:00:00    30.00968136
 01/05  01:00:00    29.97968279
 01/05  02:00:00    29.9684338
 01/05  03:00:00    29.96843324
 01/05  04:00:00    29.94968478
 01/05  05:00:00    29.93843508
 01/05  06:00:00    29.93843508
 01/05  07:00:00    29.93843515
 01/05  08:00:00    29.9571841
 01/05  09:00:00    29.98718282
 01/05  10:00:00    29.99843139
 01/05  11:00:00    29.97968293
 01/05  12:00:00    29.94968436
 01/05  13:00:00    29.9196862
 01/05  14:00:00    29.90843651
 01/05  15:00:00    29.90843665
 01/05  16:00:00    29.92718539
 01/05  17:00:00    29.93843467
 01/05  18:00:00    29.93843439
 01/05  19:00:00    29.95718397
 01/05  20:00:00    29.9684331
 01/05  21:00:00    29.98718268
 01/05  22:00:00    29.99843181
 01/05  23:00:00    30.01718083
 01/05  24:00:00    30.02842996
 01/06  01:00:00    30.02843024
 01/06  02:00:00    30.04717926
 01/06  03:00:00    30.05842867
 01/06  04:00:00    30.05842881
 01/06  05:00:00    30.07717797
 01/06  06:00:00    30.10717598
 01/06  07:00:00    30.11842544
 01/06  08:00:00    30.13717427
 01/06  09:00:00    30.16717285
 01/06  10:00:00    30.19717184
 01/06  11:00:00    30.18967153
 01/06  12:00:00    30.1784224
 01/06  13:00:00    30.15967338
 01/06  14:00:00    30.14842383
 01/06  15:00:00    30.1484234
 01/06  16:00:00    30.14842355
 01/06  17:00:00    30.14842298
 01/06  18:00:00    30.16717285
 01/06  19:00:00    30.1784217
 01/06  20:00:00    30.17842184
 01/06  21:00:00    30.1784224
 01/06  22:00:00    30.17842212
 01/06  23:00:00    30.17842215
 01/06  24:00:00    30.15967338
 01/07  01:00:00    30.14842411
 01/07  02:00:00    30.12967424
 01/07  03:00:00    30.11842582
 01/07  04:00:00    30.13717456
 01/07  05:00:00    30.12967481
 01/07  06:00:00    30.13717385
 01/07  07:00:00    30.14842386
 01/07  08:00:00    30.14842425
 01/07  09:00:00    30.16717228
 01/07  10:00:00    30.17842254
 01/07  11:00:00    30.17842226
 01/07  12:00:00    30.15967296
 01/07  13:00:00    30.12967509
 01/07  14:00:00    30.0996768
 01/07  15:00:00    30.08842668
 01/07  16:00:00    30.0884271
 01/07  17:00:00    30.08842668
 01/07  18:00:00    30.08842668
 01/07  19:00:00    30.08842696
 01/07  20:00:00    30.08842626
 01/07  21:00:00    30.08842696
 01/07  22:00:00    30.0884271
 01/07  23:00:00    30.08842724
 01/07  24:00:00    30.06967808
 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046
 07/02  01:00:00    36.12686096
 07/02  02:00:00    36.12686096
 07/02  03:00:00    36.12686096
 07/02  04:00:00    36.12685995
 07/02  05:00:00    36.12685978
 07/02  06:00:00    36.1268608
 07/02  07:00:00    36.14955326
 07/02  08:00:00    36.16316861
 07/02  09:00:00    36.16316949
 07/02  10:00:00    36.16316884
 07/02  11:00:00    36.16316894
 07/02  12:00:00    36.16316904
 07/02  13:00:00    36.16316886
 07/02  14:00:00    36.14047618
 07/02  15:00:00    36.12686033
 07/02  16:00:00    36.12686028
 07/02  17:00:00    36.12686031
 07/02  18:00:00    36.12686061
 07/02  19:00:00    36.12686033
 07/02  20:00:00    36.1268608
 07/02  21:00:00    36.13981066
 07/02  22:00:00    36.12534957
 07/02  23:00:00    36.11940171
 07/02  24:00:00    36.1194112
 07/03  01:00:00    36.11941053
 07/03  02:00:00    36.09674591
 07/03  03:00:00    36.08314589
 07/03  04:00:00    36.08314577
 07/03  05:00:00    36.10581127
 07/03  06:00:00    36.11941074
 07/03  07:00:00    36.14207582
 07/03  08:00:00    36.15567466
 07/03  09:00:00    36.15567516
 07/03  10:00:00    36.15567533
 07/03  11:00:00    36.15567525
 07/03  12:00:00    36.15567491
 07/03  13:00:00    36.13300987
 07/03  14:00:00    36.11941095
 07/03  15:00:00    36.1194112
 07/03  16:00:00    36.11941069
 07/03  17:00:00    36.0967449
 07/03  18:00:00    36.08314572
 07/03  19:00:00    36.08314648
 07/03  20:00:00    36.10581101
 07/03  21:00:00    36.11941069
 07/03  22:00:00    36.11940994
 07/03  23:00:00    36.11941019
 07/03  24:00:00    36.11941036
 07/04  01:00:00    36.11941086
 07/04  02:00:00    36.11941086
 07/04  03:00:00    36.11941002
 07/04  04:00:00    36.11940985
 07/04  05:00:00    36.11933984
 07/04  06:00:00    36.12153371
 07/04  07:00:00    36.11364399
 07/04  08:00:00    36.11369359
 07/04  09:00:00    36.1136946
 07/04  10:00:00    36.11369446
 07/04  11:00:00    36.11369484
 07/04  12:00:00    36.11369441
 07/04  13:00:00    36.09105561
 07/04  14:00:00    36.07747228
 07/04  15:00:00    36.07747258
 07/04  16:00:00    36.05483345
 07/04  17:00:00    36.04125009
 07/04  18:00:00    36.0412497
 07/04  19:00:00    36.04124935
 07/04  20:00:00    36.04124957
 07/04  21:00:00    36.0412502
 07/04  22:00:00    36.04125004
 07/04  23:00:00    36.04124987
 07/04  24:00:00    36.04125004
 07/05  01:00:00    36.04124987
 07/05  02:00:00    36.04125037
 07/05  03:00:00    36.0412497
 07/05  04:00:00    36.04124936
 07/05  05:00:00    36.0412497
 07/05  06:00:00    36.04124991
 07/05  07:00:00    36.04125004
 07/05  08:00:00    36.0412502
 07/05  09:00:00    36.04124953
 07/05  10:00:00    36.06388884
 07/05  11:00:00    36.05483292
 07/05  12:00:00    36.04124945
 07/05  13:00:00    36.04125004
 07/05  14:00:00    36.04125054
 07/05  15:00:00    36.01861106
 07/05  16:00:00    36.00502667
 07/05  17:00:00    35.9823887
 07/05  18:00:00    35.96880431
 07/05  19:00:00    35.96880506
 07/05  20:00:00    35.96880481
 07/05  21:00:00    35.99144379
 07/05  22:00:00    35.99912995
 07/05  23:00:00    35.95881037
 07/05  24:00:00    35.94770478
 07/06  01:00:00    35.81016103
 07/06  02:00:00    35.57496488
 07/06  03:00:00    35.55758753
 07/06  04:00:00    35.55241445
 07/06  05:00:00    35.55244833
 07/06  06:00:00    35.57480237
 07/06  07:00:00    35.58821505
 07/06  08:00:00    35.61056912
 07/06  09:00:00    35.60162753
 07/06  10:00:00    35.58821455
 07/06  11:00:00    35.58821439
 07/06  12:00:00    35.58821513
 07/06  13:00:00    35.58821488
 07/06  14:00:00    35.58821538
 07/06  15:00:00    35.58821513
 07/06  16:00:00    35.58821463
 07/06  17:00:00    35.56585973
 07/06  18:00:00    35.55244734
 07/06  19:00:00    35.55244758
 07/06  20:00:00    35.57480174
 07/06  21:00:00    35.58821513
 07/06  22:00:00    35.5882148
 07/06  23:00:00    35.58821472
 07/06  24:00:00    35.58821488
 07/07  01:00:00    35.58821522
 07/07  02:00:00    35.58821522
 07/07  03:00:00    35.58821505
 07/07  04:00:00    35.58821434
 07/07  05:00:00    35.58821452
 07/07  06:00:00    35.58821443
 07/07  07:00:00    35.61056929
 07/07  08:00:00    35.62398143
 07/07  09:00:00    35.62398177
 07/07  10:00:00    35.6239821
 07/07  11:00:00    35.6239816
 07/07  12:00:00    35.62398177
 07/07  13:00:00    35.62398193
 07/07  14:00:00    35.62398094
 07/07  15:00:00    35.62398218
 07/07  16:00:00    35.62398168
 07/07  17:00:00    35.60162753
 07/07  18:00:00    35.58821463
 07/07  19:00:00    35.58821463
 07/07  20:00:00    35.61056929
 07/07  21:00:00    35.62398193
 07/07  22:00:00    35.64633584
 07/07  23:00:00    35.63739458
 07/07  24:00:00    35.62398127

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses much of the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

POST SCRIPT
Providing some data from the simulation, the humidity can get quite low if there is there is no humidifier present. These are the relative humidity values for the two design days, the first week of January, and the first week of July in a data center that does not possess a humidifier.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 12/21  01:00:00    22.48504471
 12/21  02:00:00    22.48504471
 12/21  03:00:00    22.48504482
 12/21  04:00:00    22.4850445
 12/21  05:00:00    22.48504492
 12/21  06:00:00    22.48504441
 12/21  07:00:00    22.4850446
 12/21  08:00:00    22.48504482
 12/21  09:00:00    22.48504492
 12/21  10:00:00    22.48504482
 12/21  11:00:00    22.48504482
 12/21  12:00:00    22.48504461
 12/21  13:00:00    22.4850445
 12/21  14:00:00    22.48504503
 12/21  15:00:00    22.48504482
 12/21  16:00:00    22.48504482
 12/21  17:00:00    22.48504461
 12/21  18:00:00    22.48504471
 12/21  19:00:00    22.48504466
 12/21  20:00:00    22.48504469
 12/21  21:00:00    22.48504481
 12/21  22:00:00    22.48504482
 12/21  23:00:00    22.48504455
 12/21  24:00:00    22.48504461
 08/21  01:00:00    35.83543615
 08/21  02:00:00    35.835436
 08/21  03:00:00    35.8354359
 08/21  04:00:00    35.83543573
 08/21  05:00:00    35.83543556
 08/21  06:00:00    35.83543589
 08/21  07:00:00    35.83543569
 08/21  08:00:00    35.83543565
 08/21  09:00:00    35.83543556
 08/21  10:00:00    35.83543556
 08/21  11:00:00    35.83543506
 08/21  12:00:00    35.83543556
 08/21  13:00:00    35.83543556
 08/21  14:00:00    35.83543606
 08/21  15:00:00    35.83543456
 08/21  16:00:00    35.83543556
 08/21  17:00:00    35.83543606
 08/21  18:00:00    35.83543506
 08/21  19:00:00    35.83543456
 08/21  20:00:00    35.83543506
 08/21  21:00:00    35.83543506
 08/21  22:00:00    35.83543556
 08/21  23:00:00    35.83543572
 08/21  24:00:00    35.83543569
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153
 01/02  01:00:00    29.99843125
 01/02  02:00:00    29.99843139
 01/02  03:00:00    29.99843139
 01/02  04:00:00    29.99843111
 01/02  05:00:00    29.99843111
 01/02  06:00:00    29.99843152
 01/02  07:00:00    30.01718048
 01/02  08:00:00    30.0471794
 01/02  09:00:00    30.07717699
 01/02  10:00:00    30.10717556
 01/02  11:00:00    30.11842511
 01/02  12:00:00    30.09967666
 01/02  13:00:00    30.08842654
 01/02  14:00:00    30.0696778
 01/02  15:00:00    30.07717741
 01/02  16:00:00    30.0884264
 01/02  17:00:00    30.08842696
 01/02  18:00:00    30.08842724
 01/02  19:00:00    30.1071757
 01/02  20:00:00    30.11842511
 01/02  21:00:00    30.11842511
 01/02  22:00:00    30.13717442
 01/02  23:00:00    30.12967488
 01/02  24:00:00    30.13717371
 01/03  01:00:00    30.12967467
 01/03  02:00:00    30.11842525
 01/03  03:00:00    30.11842554
 01/03  04:00:00    30.11842525
 01/03  05:00:00    30.13717413
 01/03  06:00:00    30.16717209
 01/03  07:00:00    30.17842206
 01/03  08:00:00    30.19717142
 01/03  09:00:00    30.20842041
 01/03  10:00:00    30.22716915
 01/03  11:00:00    30.23841898
 01/03  12:00:00    30.21967038
 01/03  13:00:00    30.20842069
 01/03  14:00:00    30.18967181
 01/03  15:00:00    30.17842254
 01/03  16:00:00    30.1784217
 01/03  17:00:00    30.17842113
 01/03  18:00:00    30.19717156
 01/03  19:00:00    30.20842027
 01/03  20:00:00    30.22716943
 01/03  21:00:00    30.23841828
 01/03  22:00:00    30.23841828
 01/03  23:00:00    30.25716811
 01/03  24:00:00    30.24966797
 01/04  01:00:00    30.21966982
 01/04  02:00:00    30.20842041
 01/04  03:00:00    30.22716985
 01/04  04:00:00    30.21966954
 01/04  05:00:00    30.20842041
 01/04  06:00:00    30.20842015
 01/04  07:00:00    30.20842097
 01/04  08:00:00    30.22716957
 01/04  09:00:00    30.23841916
 01/04  10:00:00    30.23841969
 01/04  11:00:00    30.21967067
 01/04  12:00:00    30.17092321
 01/04  13:00:00    30.12967537
 01/04  14:00:00    30.09967694
 01/04  15:00:00    30.06967851
 01/04  16:00:00    30.05842909
 01/04  17:00:00    30.05842853
 01/04  18:00:00    30.05842909
 01/04  19:00:00    30.05842909
 01/04  20:00:00    30.03968007
 01/04  21:00:00    30.02843066
 01/04  22:00:00    30.02843052
 01/04  23:00:00    30.02843066
 01/04  24:00:00    30.00968136
 01/05  01:00:00    29.97968279
 01/05  02:00:00    29.9684338
 01/05  03:00:00    29.96843324
 01/05  04:00:00    29.94968478
 01/05  05:00:00    29.93843508
 01/05  06:00:00    29.93843508
 01/05  07:00:00    29.93843515
 01/05  08:00:00    29.9571841
 01/05  09:00:00    29.98718282
 01/05  10:00:00    29.99843139
 01/05  11:00:00    29.97968293
 01/05  12:00:00    29.94968436
 01/05  13:00:00    29.9196862
 01/05  14:00:00    29.90843651
 01/05  15:00:00    29.90843665
 01/05  16:00:00    29.92718539
 01/05  17:00:00    29.93843467
 01/05  18:00:00    29.93843439
 01/05  19:00:00    29.95718397
 01/05  20:00:00    29.9684331
 01/05  21:00:00    29.98718268
 01/05  22:00:00    29.99843181
 01/05  23:00:00    30.01718083
 01/05  24:00:00    30.02842996
 01/06  01:00:00    30.02843024
 01/06  02:00:00    30.04717926
 01/06  03:00:00    30.05842867
 01/06  04:00:00    30.05842881
 01/06  05:00:00    30.07717797
 01/06  06:00:00    30.10717598
 01/06  07:00:00    30.11842544
 01/06  08:00:00    30.13717427
 01/06  09:00:00    30.16717285
 01/06  10:00:00    30.19717184
 01/06  11:00:00    30.18967153
 01/06  12:00:00    30.1784224
 01/06  13:00:00    30.15967338
 01/06  14:00:00    30.14842383
 01/06  15:00:00    30.1484234
 01/06  16:00:00    30.14842355
 01/06  17:00:00    30.14842298
 01/06  18:00:00    30.16717285
 01/06  19:00:00    30.1784217
 01/06  20:00:00    30.17842184
 01/06  21:00:00    30.1784224
 01/06  22:00:00    30.17842212
 01/06  23:00:00    30.17842215
 01/06  24:00:00    30.15967338
 01/07  01:00:00    30.14842411
 01/07  02:00:00    30.12967424
 01/07  03:00:00    30.11842582
 01/07  04:00:00    30.13717456
 01/07  05:00:00    30.12967481
 01/07  06:00:00    30.13717385
 01/07  07:00:00    30.14842386
 01/07  08:00:00    30.14842425
 01/07  09:00:00    30.16717228
 01/07  10:00:00    30.17842254
 01/07  11:00:00    30.17842226
 01/07  12:00:00    30.15967296
 01/07  13:00:00    30.12967509
 01/07  14:00:00    30.0996768
 01/07  15:00:00    30.08842668
 01/07  16:00:00    30.0884271
 01/07  17:00:00    30.08842668
 01/07  18:00:00    30.08842668
 01/07  19:00:00    30.08842696
 01/07  20:00:00    30.08842626
 01/07  21:00:00    30.08842696
 01/07  22:00:00    30.0884271
 01/07  23:00:00    30.08842724
 01/07  24:00:00    30.06967808
 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046
 07/02  01:00:00    36.12686096
 07/02  02:00:00    36.12686096
 07/02  03:00:00    36.12686096
 07/02  04:00:00    36.12685995
 07/02  05:00:00    36.12685978
 07/02  06:00:00    36.1268608
 07/02  07:00:00    36.14955326
 07/02  08:00:00    36.16316861
 07/02  09:00:00    36.16316949
 07/02  10:00:00    36.16316884
 07/02  11:00:00    36.16316894
 07/02  12:00:00    36.16316904
 07/02  13:00:00    36.16316886
 07/02  14:00:00    36.14047618
 07/02  15:00:00    36.12686033
 07/02  16:00:00    36.12686028
 07/02  17:00:00    36.12686031
 07/02  18:00:00    36.12686061
 07/02  19:00:00    36.12686033
 07/02  20:00:00    36.1268608
 07/02  21:00:00    36.13981066
 07/02  22:00:00    36.12534957
 07/02  23:00:00    36.11940171
 07/02  24:00:00    36.1194112
 07/03  01:00:00    36.11941053
 07/03  02:00:00    36.09674591
 07/03  03:00:00    36.08314589
 07/03  04:00:00    36.08314577
 07/03  05:00:00    36.10581127
 07/03  06:00:00    36.11941074
 07/03  07:00:00    36.14207582
 07/03  08:00:00    36.15567466
 07/03  09:00:00    36.15567516
 07/03  10:00:00    36.15567533
 07/03  11:00:00    36.15567525
 07/03  12:00:00    36.15567491
 07/03  13:00:00    36.13300987
 07/03  14:00:00    36.11941095
 07/03  15:00:00    36.1194112
 07/03  16:00:00    36.11941069
 07/03  17:00:00    36.0967449
 07/03  18:00:00    36.08314572
 07/03  19:00:00    36.08314648
 07/03  20:00:00    36.10581101
 07/03  21:00:00    36.11941069
 07/03  22:00:00    36.11940994
 07/03  23:00:00    36.11941019
 07/03  24:00:00    36.11941036
 07/04  01:00:00    36.11941086
 07/04  02:00:00    36.11941086
 07/04  03:00:00    36.11941002
 07/04  04:00:00    36.11940985
 07/04  05:00:00    36.11933984
 07/04  06:00:00    36.12153371
 07/04  07:00:00    36.11364399
 07/04  08:00:00    36.11369359
 07/04  09:00:00    36.1136946
 07/04  10:00:00    36.11369446
 07/04  11:00:00    36.11369484
 07/04  12:00:00    36.11369441
 07/04  13:00:00    36.09105561
 07/04  14:00:00    36.07747228
 07/04  15:00:00    36.07747258
 07/04  16:00:00    36.05483345
 07/04  17:00:00    36.04125009
 07/04  18:00:00    36.0412497
 07/04  19:00:00    36.04124935
 07/04  20:00:00    36.04124957
 07/04  21:00:00    36.0412502
 07/04  22:00:00    36.04125004
 07/04  23:00:00    36.04124987
 07/04  24:00:00    36.04125004
 07/05  01:00:00    36.04124987
 07/05  02:00:00    36.04125037
 07/05  03:00:00    36.0412497
 07/05  04:00:00    36.04124936
 07/05  05:00:00    36.0412497
 07/05  06:00:00    36.04124991
 07/05  07:00:00    36.04125004
 07/05  08:00:00    36.0412502
 07/05  09:00:00    36.04124953
 07/05  10:00:00    36.06388884
 07/05  11:00:00    36.05483292
 07/05  12:00:00    36.04124945
 07/05  13:00:00    36.04125004
 07/05  14:00:00    36.04125054
 07/05  15:00:00    36.01861106
 07/05  16:00:00    36.00502667
 07/05  17:00:00    35.9823887
 07/05  18:00:00    35.96880431
 07/05  19:00:00    35.96880506
 07/05  20:00:00    35.96880481
 07/05  21:00:00    35.99144379
 07/05  22:00:00    35.99912995
 07/05  23:00:00    35.95881037
 07/05  24:00:00    35.94770478
 07/06  01:00:00    35.81016103
 07/06  02:00:00    35.57496488
 07/06  03:00:00    35.55758753
 07/06  04:00:00    35.55241445
 07/06  05:00:00    35.55244833
 07/06  06:00:00    35.57480237
 07/06  07:00:00    35.58821505
 07/06  08:00:00    35.61056912
 07/06  09:00:00    35.60162753
 07/06  10:00:00    35.58821455
 07/06  11:00:00    35.58821439
 07/06  12:00:00    35.58821513
 07/06  13:00:00    35.58821488
 07/06  14:00:00    35.58821538
 07/06  15:00:00    35.58821513
 07/06  16:00:00    35.58821463
 07/06  17:00:00    35.56585973
 07/06  18:00:00    35.55244734
 07/06  19:00:00    35.55244758
 07/06  20:00:00    35.57480174
 07/06  21:00:00    35.58821513
 07/06  22:00:00    35.5882148
 07/06  23:00:00    35.58821472
 07/06  24:00:00    35.58821488
 07/07  01:00:00    35.58821522
 07/07  02:00:00    35.58821522
 07/07  03:00:00    35.58821505
 07/07  04:00:00    35.58821434
 07/07  05:00:00    35.58821452
 07/07  06:00:00    35.58821443
 07/07  07:00:00    35.61056929
 07/07  08:00:00    35.62398143
 07/07  09:00:00    35.62398177
 07/07  10:00:00    35.6239821
 07/07  11:00:00    35.6239816
 07/07  12:00:00    35.62398177
 07/07  13:00:00    35.62398193
 07/07  14:00:00    35.62398094
 07/07  15:00:00    35.62398218
 07/07  16:00:00    35.62398168
 07/07  17:00:00    35.60162753
 07/07  18:00:00    35.58821463
 07/07  19:00:00    35.58821463
 07/07  20:00:00    35.61056929
 07/07  21:00:00    35.62398193
 07/07  22:00:00    35.64633584
 07/07  23:00:00    35.63739458
 07/07  24:00:00    35.62398127

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses much of the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

POST SCRIPT
Providing some data from the simulation, the humidity can get quite low if there is there is no humidifier present. These are the relative humidity values for the two design days, the first week of January, and the first week of July in a data center that does not possess a humidifier.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 12/21  01:00:00    22.48504471
 12/21  02:00:00    22.48504471
 12/21  03:00:00    22.48504482
 12/21  04:00:00    22.4850445
 12/21  05:00:00    22.48504492
 12/21  06:00:00    22.48504441
 12/21  07:00:00    22.4850446
 12/21  08:00:00    22.48504482
 12/21  09:00:00    22.48504492
 12/21  10:00:00    22.48504482
 12/21  11:00:00    22.48504482
 12/21  12:00:00    22.48504461
 12/21  13:00:00    22.4850445
 12/21  14:00:00    22.48504503
 12/21  15:00:00    22.48504482
 12/21  16:00:00    22.48504482
 12/21  17:00:00    22.48504461
 12/21  18:00:00    22.48504471
 12/21  19:00:00    22.48504466
 12/21  20:00:00    22.48504469
 12/21  21:00:00    22.48504481
 12/21  22:00:00    22.48504482
 12/21  23:00:00    22.48504455
 12/21  24:00:00    22.48504461
 08/21  01:00:00    35.83543615
 08/21  02:00:00    35.835436
 08/21  03:00:00    35.8354359
 08/21  04:00:00    35.83543573
 08/21  05:00:00    35.83543556
 08/21  06:00:00    35.83543589
 08/21  07:00:00    35.83543569
 08/21  08:00:00    35.83543565
 08/21  09:00:00    35.83543556
 08/21  10:00:00    35.83543556
 08/21  11:00:00    35.83543506
 08/21  12:00:00    35.83543556
 08/21  13:00:00    35.83543556
 08/21  14:00:00    35.83543606
 08/21  15:00:00    35.83543456
 08/21  16:00:00    35.83543556
 08/21  17:00:00    35.83543606
 08/21  18:00:00    35.83543506
 08/21  19:00:00    35.83543456
 08/21  20:00:00    35.83543506
 08/21  21:00:00    35.83543506
 08/21  22:00:00    35.83543556
 08/21  23:00:00    35.83543572
 08/21  24:00:00    35.83543569
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153
 01/02  01:00:00    29.99843125
 01/02  02:00:00    29.99843139
 01/02  03:00:00    29.99843139
 01/02  04:00:00    29.99843111
 01/02  05:00:00    29.99843111
 01/02  06:00:00    29.99843152
 01/02  07:00:00    30.01718048
 01/02  08:00:00    30.0471794
 01/02  09:00:00    30.07717699
 01/02  10:00:00    30.10717556
 01/02  11:00:00    30.11842511
 01/02  12:00:00    30.09967666
 01/02  13:00:00    30.08842654
 01/02  14:00:00    30.0696778
 01/02  15:00:00    30.07717741
 01/02  16:00:00    30.0884264
 01/02  17:00:00    30.08842696
 01/02  18:00:00    30.08842724
 01/02  19:00:00    30.1071757
 01/02  20:00:00    30.11842511
 01/02  21:00:00    30.11842511
 01/02  22:00:00    30.13717442
 01/02  23:00:00    30.12967488
 01/02  24:00:00    30.13717371
 01/03  01:00:00    30.12967467
 01/03  02:00:00    30.11842525
 01/03  03:00:00    30.11842554
 01/03  04:00:00    30.11842525
 01/03  05:00:00    30.13717413
 01/03  06:00:00    30.16717209
 01/03  07:00:00    30.17842206
 01/03  08:00:00    30.19717142
 01/03  09:00:00    30.20842041
 01/03  10:00:00    30.22716915
 01/03  11:00:00    30.23841898
 01/03  12:00:00    30.21967038
 01/03  13:00:00    30.20842069
 01/03  14:00:00    30.18967181
 01/03  15:00:00    30.17842254
 01/03  16:00:00    30.1784217
 01/03  17:00:00    30.17842113
 01/03  18:00:00    30.19717156
 01/03  19:00:00    30.20842027
 01/03  20:00:00    30.22716943
 01/03  21:00:00    30.23841828
 01/03  22:00:00    30.23841828
 01/03  23:00:00    30.25716811
 01/03  24:00:00    30.24966797
 01/04  01:00:00    30.21966982
 01/04  02:00:00    30.20842041
 01/04  03:00:00    30.22716985
 01/04  04:00:00    30.21966954
 01/04  05:00:00    30.20842041
 01/04  06:00:00    30.20842015
 01/04  07:00:00    30.20842097
 01/04  08:00:00    30.22716957
 01/04  09:00:00    30.23841916
 01/04  10:00:00    30.23841969
 01/04  11:00:00    30.21967067
 01/04  12:00:00    30.17092321
 01/04  13:00:00    30.12967537
 01/04  14:00:00    30.09967694
 01/04  15:00:00    30.06967851
 01/04  16:00:00    30.05842909
 01/04  17:00:00    30.05842853
 01/04  18:00:00    30.05842909
 01/04  19:00:00    30.05842909
 01/04  20:00:00    30.03968007
 01/04  21:00:00    30.02843066
 01/04  22:00:00    30.02843052
 01/04  23:00:00    30.02843066
 01/04  24:00:00    30.00968136
 01/05  01:00:00    29.97968279
 01/05  02:00:00    29.9684338
 01/05  03:00:00    29.96843324
 01/05  04:00:00    29.94968478
 01/05  05:00:00    29.93843508
 01/05  06:00:00    29.93843508
 01/05  07:00:00    29.93843515
 01/05  08:00:00    29.9571841
 01/05  09:00:00    29.98718282
 01/05  10:00:00    29.99843139
 01/05  11:00:00    29.97968293
 01/05  12:00:00    29.94968436
 01/05  13:00:00    29.9196862
 01/05  14:00:00    29.90843651
 01/05  15:00:00    29.90843665
 01/05  16:00:00    29.92718539
 01/05  17:00:00    29.93843467
 01/05  18:00:00    29.93843439
 01/05  19:00:00    29.95718397
 01/05  20:00:00    29.9684331
 01/05  21:00:00    29.98718268
 01/05  22:00:00    29.99843181
 01/05  23:00:00    30.01718083
 01/05  24:00:00    30.02842996
 01/06  01:00:00    30.02843024
 01/06  02:00:00    30.04717926
 01/06  03:00:00    30.05842867
 01/06  04:00:00    30.05842881
 01/06  05:00:00    30.07717797
 01/06  06:00:00    30.10717598
 01/06  07:00:00    30.11842544
 01/06  08:00:00    30.13717427
 01/06  09:00:00    30.16717285
 01/06  10:00:00    30.19717184
 01/06  11:00:00    30.18967153
 01/06  12:00:00    30.1784224
 01/06  13:00:00    30.15967338
 01/06  14:00:00    30.14842383
 01/06  15:00:00    30.1484234
 01/06  16:00:00    30.14842355
 01/06  17:00:00    30.14842298
 01/06  18:00:00    30.16717285
 01/06  19:00:00    30.1784217
 01/06  20:00:00    30.17842184
 01/06  21:00:00    30.1784224
 01/06  22:00:00    30.17842212
 01/06  23:00:00    30.17842215
 01/06  24:00:00    30.15967338
 01/07  01:00:00    30.14842411
 01/07  02:00:00    30.12967424
 01/07  03:00:00    30.11842582
 01/07  04:00:00    30.13717456
 01/07  05:00:00    30.12967481
 01/07  06:00:00    30.13717385
 01/07  07:00:00    30.14842386
 01/07  08:00:00    30.14842425
 01/07  09:00:00    30.16717228
 01/07  10:00:00    30.17842254
 01/07  11:00:00    30.17842226
 01/07  12:00:00    30.15967296
 01/07  13:00:00    30.12967509
 01/07  14:00:00    30.0996768
 01/07  15:00:00    30.08842668
 01/07  16:00:00    30.0884271
 01/07  17:00:00    30.08842668
 01/07  18:00:00    30.08842668
 01/07  19:00:00    30.08842696
 01/07  20:00:00    30.08842626
 01/07  21:00:00    30.08842696
 01/07  22:00:00    30.0884271
 01/07  23:00:00    30.08842724
 01/07  24:00:00    30.06967808
 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046
 07/02  01:00:00    36.12686096
 07/02  02:00:00    36.12686096
 07/02  03:00:00    36.12686096
 07/02  04:00:00    36.12685995
 07/02  05:00:00    36.12685978
 07/02  06:00:00    36.1268608
 07/02  07:00:00    36.14955326
 07/02  08:00:00    36.16316861
 07/02  09:00:00    36.16316949
 07/02  10:00:00    36.16316884
 07/02  11:00:00    36.16316894
 07/02  12:00:00    36.16316904
 07/02  13:00:00    36.16316886
 07/02  14:00:00    36.14047618
 07/02  15:00:00    36.12686033
 07/02  16:00:00    36.12686028
 07/02  17:00:00    36.12686031
 07/02  18:00:00    36.12686061
 07/02  19:00:00    36.12686033
 07/02  20:00:00    36.1268608
 07/02  21:00:00    36.13981066
 07/02  22:00:00    36.12534957
 07/02  23:00:00    36.11940171
 07/02  24:00:00    36.1194112
 07/03  01:00:00    36.11941053
 07/03  02:00:00    36.09674591
 07/03  03:00:00    36.08314589
 07/03  04:00:00    36.08314577
 07/03  05:00:00    36.10581127
 07/03  06:00:00    36.11941074
 07/03  07:00:00    36.14207582
 07/03  08:00:00    36.15567466
 07/03  09:00:00    36.15567516
 07/03  10:00:00    36.15567533
 07/03  11:00:00    36.15567525
 07/03  12:00:00    36.15567491
 07/03  13:00:00    36.13300987
 07/03  14:00:00    36.11941095
 07/03  15:00:00    36.1194112
 07/03  16:00:00    36.11941069
 07/03  17:00:00    36.0967449
 07/03  18:00:00    36.08314572
 07/03  19:00:00    36.08314648
 07/03  20:00:00    36.10581101
 07/03  21:00:00    36.11941069
 07/03  22:00:00    36.11940994
 07/03  23:00:00    36.11941019
 07/03  24:00:00    36.11941036
 07/04  01:00:00    36.11941086
 07/04  02:00:00    36.11941086
 07/04  03:00:00    36.11941002
 07/04  04:00:00    36.11940985
 07/04  05:00:00    36.11933984
 07/04  06:00:00    36.12153371
 07/04  07:00:00    36.11364399
 07/04  08:00:00    36.11369359
 07/04  09:00:00    36.1136946
 07/04  10:00:00    36.11369446
 07/04  11:00:00    36.11369484
 07/04  12:00:00    36.11369441
 07/04  13:00:00    36.09105561
 07/04  14:00:00    36.07747228
 07/04  15:00:00    36.07747258
 07/04  16:00:00    36.05483345
 07/04  17:00:00    36.04125009
 07/04  18:00:00    36.0412497
 07/04  19:00:00    36.04124935
 07/04  20:00:00    36.04124957
 07/04  21:00:00    36.0412502
 07/04  22:00:00    36.04125004
 07/04  23:00:00    36.04124987
 07/04  24:00:00    36.04125004
 07/05  01:00:00    36.04124987
 07/05  02:00:00    36.04125037
 07/05  03:00:00    36.0412497
 07/05  04:00:00    36.04124936
 07/05  05:00:00    36.0412497
 07/05  06:00:00    36.04124991
 07/05  07:00:00    36.04125004
 07/05  08:00:00    36.0412502
 07/05  09:00:00    36.04124953
 07/05  10:00:00    36.06388884
 07/05  11:00:00    36.05483292
 07/05  12:00:00    36.04124945
 07/05  13:00:00    36.04125004
 07/05  14:00:00    36.04125054
 07/05  15:00:00    36.01861106
 07/05  16:00:00    36.00502667
 07/05  17:00:00    35.9823887
 07/05  18:00:00    35.96880431
 07/05  19:00:00    35.96880506
 07/05  20:00:00    35.96880481
 07/05  21:00:00    35.99144379
 07/05  22:00:00    35.99912995
 07/05  23:00:00    35.95881037
 07/05  24:00:00    35.94770478
 07/06  01:00:00    35.81016103
 07/06  02:00:00    35.57496488
 07/06  03:00:00    35.55758753
 07/06  04:00:00    35.55241445
 07/06  05:00:00    35.55244833
 07/06  06:00:00    35.57480237
 07/06  07:00:00    35.58821505
 07/06  08:00:00    35.61056912
 07/06  09:00:00    35.60162753
 07/06  10:00:00    35.58821455
 07/06  11:00:00    35.58821439
 07/06  12:00:00    35.58821513
 07/06  13:00:00    35.58821488
 07/06  14:00:00    35.58821538
 07/06  15:00:00    35.58821513
 07/06  16:00:00    35.58821463
 07/06  17:00:00    35.56585973
 07/06  18:00:00    35.55244734
 07/06  19:00:00    35.55244758
 07/06  20:00:00    35.57480174
 07/06  21:00:00    35.58821513
 07/06  22:00:00    35.5882148
 07/06  23:00:00    35.58821472
 07/06  24:00:00    35.58821488
 07/07  01:00:00    35.58821522
 07/07  02:00:00    35.58821522
 07/07  03:00:00    35.58821505
 07/07  04:00:00    35.58821434
 07/07  05:00:00    35.58821452
 07/07  06:00:00    35.58821443
 07/07  07:00:00    35.61056929
 07/07  08:00:00    35.62398143
 07/07  09:00:00    35.62398177
 07/07  10:00:00    35.6239821
 07/07  11:00:00    35.6239816
 07/07  12:00:00    35.62398177
 07/07  13:00:00    35.62398193
 07/07  14:00:00    35.62398094
 07/07  15:00:00    35.62398218
 07/07  16:00:00    35.62398168
 07/07  17:00:00    35.60162753
 07/07  18:00:00    35.58821463
 07/07  19:00:00    35.58821463
 07/07  20:00:00    35.61056929
 07/07  21:00:00    35.62398193
 07/07  22:00:00    35.64633584
 07/07  23:00:00    35.63739458
 07/07  24:00:00    35.62398127

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses much of the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

POST SCRIPT
Providing some data from the simulation, the humidity can get quite low if there is there is no humidifier present. These are the relative humidity values for the two design days, the first week of January, and the first week of July in a data center that does not possess a humidifier.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 12/21  01:00:00    22.48504471
 12/21  02:00:00    22.48504471
 12/21  03:00:00    22.48504482
 12/21  04:00:00    22.4850445
 12/21  05:00:00    22.48504492
 12/21  06:00:00    22.48504441
 12/21  07:00:00    22.4850446
 12/21  08:00:00    22.48504482
 12/21  09:00:00    22.48504492
 12/21  10:00:00    22.48504482
 12/21  11:00:00    22.48504482
 12/21  12:00:00    22.48504461
 12/21  13:00:00    22.4850445
 12/21  14:00:00    22.48504503
 12/21  15:00:00    22.48504482
 12/21  16:00:00    22.48504482
 12/21  17:00:00    22.48504461
 12/21  18:00:00    22.48504471
 12/21  19:00:00    22.48504466
 12/21  20:00:00    22.48504469
 12/21  21:00:00    22.48504481
 12/21  22:00:00    22.48504482
 12/21  23:00:00    22.48504455
 12/21  24:00:00    22.48504461
 08/21  01:00:00    35.83543615
 08/21  02:00:00    35.835436
 08/21  03:00:00    35.8354359
 08/21  04:00:00    35.83543573
 08/21  05:00:00    35.83543556
 08/21  06:00:00    35.83543589
 08/21  07:00:00    35.83543569
 08/21  08:00:00    35.83543565
 08/21  09:00:00    35.83543556
 08/21  10:00:00    35.83543556
 08/21  11:00:00    35.83543506
 08/21  12:00:00    35.83543556
 08/21  13:00:00    35.83543556
 08/21  14:00:00    35.83543606
 08/21  15:00:00    35.83543456
 08/21  16:00:00    35.83543556
 08/21  17:00:00    35.83543606
 08/21  18:00:00    35.83543506
 08/21  19:00:00    35.83543456
 08/21  20:00:00    35.83543506
 08/21  21:00:00    35.83543506
 08/21  22:00:00    35.83543556
 08/21  23:00:00    35.83543572
 08/21  24:00:00    35.83543569
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153
 01/02  01:00:00    29.99843125
 01/02  02:00:00    29.99843139
 01/02  03:00:00    29.99843139
 01/02  04:00:00    29.99843111
 01/02  05:00:00    29.99843111
 01/02  06:00:00    29.99843152
 01/02  07:00:00    30.01718048
 01/02  08:00:00    30.0471794
 01/02  09:00:00    30.07717699
 01/02  10:00:00    30.10717556
 01/02  11:00:00    30.11842511
 01/02  12:00:00    30.09967666
 01/02  13:00:00    30.08842654
 01/02  14:00:00    30.0696778
 01/02  15:00:00    30.07717741
 01/02  16:00:00    30.0884264
 01/02  17:00:00    30.08842696
 01/02  18:00:00    30.08842724
 01/02  19:00:00    30.1071757
 01/02  20:00:00    30.11842511
 01/02  21:00:00    30.11842511
 01/02  22:00:00    30.13717442
 01/02  23:00:00    30.12967488
 01/02  24:00:00    30.13717371
 01/03  01:00:00    30.12967467
 01/03  02:00:00    30.11842525
 01/03  03:00:00    30.11842554
 01/03  04:00:00    30.11842525
 01/03  05:00:00    30.13717413
 01/03  06:00:00    30.16717209
 01/03  07:00:00    30.17842206
 01/03  08:00:00    30.19717142
 01/03  09:00:00    30.20842041
 01/03  10:00:00    30.22716915
 01/03  11:00:00    30.23841898
 01/03  12:00:00    30.21967038
 01/03  13:00:00    30.20842069
 01/03  14:00:00    30.18967181
 01/03  15:00:00    30.17842254
 01/03  16:00:00    30.1784217
 01/03  17:00:00    30.17842113
 01/03  18:00:00    30.19717156
 01/03  19:00:00    30.20842027
 01/03  20:00:00    30.22716943
 01/03  21:00:00    30.23841828
 01/03  22:00:00    30.23841828
 01/03  23:00:00    30.25716811
 01/03  24:00:00    30.24966797
 01/04  01:00:00    30.21966982
 01/04  02:00:00    30.20842041
 01/04  03:00:00    30.22716985
 01/04  04:00:00    30.21966954
 01/04  05:00:00    30.20842041
 01/04  06:00:00    30.20842015
 01/04  07:00:00    30.20842097
 01/04  08:00:00    30.22716957
 01/04  09:00:00    30.23841916
 01/04  10:00:00    30.23841969
 01/04  11:00:00    30.21967067
 01/04  12:00:00    30.17092321
 01/04  13:00:00    30.12967537
 01/04  14:00:00    30.09967694
 01/04  15:00:00    30.06967851
 01/04  16:00:00    30.05842909
 01/04  17:00:00    30.05842853
 01/04  18:00:00    30.05842909
 01/04  19:00:00    30.05842909
 01/04  20:00:00    30.03968007
 01/04  21:00:00    30.02843066
 01/04  22:00:00    30.02843052
 01/04  23:00:00    30.02843066
 01/04  24:00:00    30.00968136
 01/05  01:00:00    29.97968279
 01/05  02:00:00    29.9684338
 01/05  03:00:00    29.96843324
 01/05  04:00:00    29.94968478
 01/05  05:00:00    29.93843508
 01/05  06:00:00    29.93843508
 01/05  07:00:00    29.93843515
 01/05  08:00:00    29.9571841
 01/05  09:00:00    29.98718282
 01/05  10:00:00    29.99843139
 01/05  11:00:00    29.97968293
 01/05  12:00:00    29.94968436
 01/05  13:00:00    29.9196862
 01/05  14:00:00    29.90843651
 01/05  15:00:00    29.90843665
 01/05  16:00:00    29.92718539
 01/05  17:00:00    29.93843467
 01/05  18:00:00    29.93843439
 01/05  19:00:00    29.95718397
 01/05  20:00:00    29.9684331
 01/05  21:00:00    29.98718268
 01/05  22:00:00    29.99843181
 01/05  23:00:00    30.01718083
 01/05  24:00:00    30.02842996
 01/06  01:00:00    30.02843024
 01/06  02:00:00    30.04717926
 01/06  03:00:00    30.05842867
 01/06  04:00:00    30.05842881
 01/06  05:00:00    30.07717797
 01/06  06:00:00    30.10717598
 01/06  07:00:00    30.11842544
 01/06  08:00:00    30.13717427
 01/06  09:00:00    30.16717285
 01/06  10:00:00    30.19717184
 01/06  11:00:00    30.18967153
 01/06  12:00:00    30.1784224
 01/06  13:00:00    30.15967338
 01/06  14:00:00    30.14842383
 01/06  15:00:00    30.1484234
 01/06  16:00:00    30.14842355
 01/06  17:00:00    30.14842298
 01/06  18:00:00    30.16717285
 01/06  19:00:00    30.1784217
 01/06  20:00:00    30.17842184
 01/06  21:00:00    30.1784224
 01/06  22:00:00    30.17842212
 01/06  23:00:00    30.17842215
 01/06  24:00:00    30.15967338
 01/07  01:00:00    30.14842411
 01/07  02:00:00    30.12967424
 01/07  03:00:00    30.11842582
 01/07  04:00:00    30.13717456
 01/07  05:00:00    30.12967481
 01/07  06:00:00    30.13717385
 01/07  07:00:00    30.14842386
 01/07  08:00:00    30.14842425
 01/07  09:00:00    30.16717228
 01/07  10:00:00    30.17842254
 01/07  11:00:00    30.17842226
 01/07  12:00:00    30.15967296
 01/07  13:00:00    30.12967509
 01/07  14:00:00    30.0996768
 01/07  15:00:00    30.08842668
 01/07  16:00:00    30.0884271
 01/07  17:00:00    30.08842668
 01/07  18:00:00    30.08842668
 01/07  19:00:00    30.08842696
 01/07  20:00:00    30.08842626
 01/07  21:00:00    30.08842696
 01/07  22:00:00    30.0884271
 01/07  23:00:00    30.08842724
 01/07  24:00:00    30.06967808
 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046
 07/02  01:00:00    36.12686096
 07/02  02:00:00    36.12686096
 07/02  03:00:00    36.12686096
 07/02  04:00:00    36.12685995
 07/02  05:00:00    36.12685978
 07/02  06:00:00    36.1268608
 07/02  07:00:00    36.14955326
 07/02  08:00:00    36.16316861
 07/02  09:00:00    36.16316949
 07/02  10:00:00    36.16316884
 07/02  11:00:00    36.16316894
 07/02  12:00:00    36.16316904
 07/02  13:00:00    36.16316886
 07/02  14:00:00    36.14047618
 07/02  15:00:00    36.12686033
 07/02  16:00:00    36.12686028
 07/02  17:00:00    36.12686031
 07/02  18:00:00    36.12686061
 07/02  19:00:00    36.12686033
 07/02  20:00:00    36.1268608
 07/02  21:00:00    36.13981066
 07/02  22:00:00    36.12534957
 07/02  23:00:00    36.11940171
 07/02  24:00:00    36.1194112
 07/03  01:00:00    36.11941053
 07/03  02:00:00    36.09674591
 07/03  03:00:00    36.08314589
 07/03  04:00:00    36.08314577
 07/03  05:00:00    36.10581127
 07/03  06:00:00    36.11941074
 07/03  07:00:00    36.14207582
 07/03  08:00:00    36.15567466
 07/03  09:00:00    36.15567516
 07/03  10:00:00    36.15567533
 07/03  11:00:00    36.15567525
 07/03  12:00:00    36.15567491
 07/03  13:00:00    36.13300987
 07/03  14:00:00    36.11941095
 07/03  15:00:00    36.1194112
 07/03  16:00:00    36.11941069
 07/03  17:00:00    36.0967449
 07/03  18:00:00    36.08314572
 07/03  19:00:00    36.08314648
 07/03  20:00:00    36.10581101
 07/03  21:00:00    36.11941069
 07/03  22:00:00    36.11940994
 07/03  23:00:00    36.11941019
 07/03  24:00:00    36.11941036
 07/04  01:00:00    36.11941086
 07/04  02:00:00    36.11941086
 07/04  03:00:00    36.11941002
 07/04  04:00:00    36.11940985
 07/04  05:00:00    36.11933984
 07/04  06:00:00    36.12153371
 07/04  07:00:00    36.11364399
 07/04  08:00:00    36.11369359
 07/04  09:00:00    36.1136946
 07/04  10:00:00    36.11369446
 07/04  11:00:00    36.11369484
 07/04  12:00:00    36.11369441
 07/04  13:00:00    36.09105561
 07/04  14:00:00    36.07747228
 07/04  15:00:00    36.07747258
 07/04  16:00:00    36.05483345
 07/04  17:00:00    36.04125009
 07/04  18:00:00    36.0412497
 07/04  19:00:00    36.04124935
 07/04  20:00:00    36.04124957
 07/04  21:00:00    36.0412502
 07/04  22:00:00    36.04125004
 07/04  23:00:00    36.04124987
 07/04  24:00:00    36.04125004
 07/05  01:00:00    36.04124987
 07/05  02:00:00    36.04125037
 07/05  03:00:00    36.0412497
 07/05  04:00:00    36.04124936
 07/05  05:00:00    36.0412497
 07/05  06:00:00    36.04124991
 07/05  07:00:00    36.04125004
 07/05  08:00:00    36.0412502
 07/05  09:00:00    36.04124953
 07/05  10:00:00    36.06388884
 07/05  11:00:00    36.05483292
 07/05  12:00:00    36.04124945
 07/05  13:00:00    36.04125004
 07/05  14:00:00    36.04125054
 07/05  15:00:00    36.01861106
 07/05  16:00:00    36.00502667
 07/05  17:00:00    35.9823887
 07/05  18:00:00    35.96880431
 07/05  19:00:00    35.96880506
 07/05  20:00:00    35.96880481
 07/05  21:00:00    35.99144379
 07/05  22:00:00    35.99912995
 07/05  23:00:00    35.95881037
 07/05  24:00:00    35.94770478
 07/06  01:00:00    35.81016103
 07/06  02:00:00    35.57496488
 07/06  03:00:00    35.55758753
 07/06  04:00:00    35.55241445
 07/06  05:00:00    35.55244833
 07/06  06:00:00    35.57480237
 07/06  07:00:00    35.58821505
 07/06  08:00:00    35.61056912
 07/06  09:00:00    35.60162753
 07/06  10:00:00    35.58821455
 07/06  11:00:00    35.58821439
 07/06  12:00:00    35.58821513
 07/06  13:00:00    35.58821488
 07/06  14:00:00    35.58821538
 07/06  15:00:00    35.58821513
 07/06  16:00:00    35.58821463
 07/06  17:00:00    35.56585973
 07/06  18:00:00    35.55244734
 07/06  19:00:00    35.55244758
 07/06  20:00:00    35.57480174
 07/06  21:00:00    35.58821513
 07/06  22:00:00    35.5882148
 07/06  23:00:00    35.58821472
 07/06  24:00:00    35.58821488
 07/07  01:00:00    35.58821522
 07/07  02:00:00    35.58821522
 07/07  03:00:00    35.58821505
 07/07  04:00:00    35.58821434
 07/07  05:00:00    35.58821452
 07/07  06:00:00    35.58821443
 07/07  07:00:00    35.61056929
 07/07  08:00:00    35.62398143
 07/07  09:00:00    35.62398177
 07/07  10:00:00    35.6239821
 07/07  11:00:00    35.6239816
 07/07  12:00:00    35.62398177
 07/07  13:00:00    35.62398193
 07/07  14:00:00    35.62398094
 07/07  15:00:00    35.62398218
 07/07  16:00:00    35.62398168
 07/07  17:00:00    35.60162753
 07/07  18:00:00    35.58821463
 07/07  19:00:00    35.58821463
 07/07  20:00:00    35.61056929
 07/07  21:00:00    35.62398193
 07/07  22:00:00    35.64633584
 07/07  23:00:00    35.63739458
 07/07  24:00:00    35.62398127

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses much of the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

POST SCRIPT
Providing some data from the simulation, the humidity can get quite low if there is there is no humidifier present. These are the relative humidity values for the two design days, the first week day of January, January and the first week day of July in a data center that does not possess a humidifier.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 12/21 01/01  01:00:00    22.48504471
 12/21 29.96093349
 01/01  02:00:00    22.48504471
 12/21 29.95718355
 01/01  03:00:00    22.48504482
 12/21 29.9684331
 01/01  04:00:00    22.4850445
 12/21 29.96843366
 01/01  05:00:00    22.48504492
 12/21 29.98718226
 01/01  06:00:00    22.48504441
 12/21 29.97968237
 01/01  07:00:00    22.4850446
 12/21 29.98718184
 01/01  08:00:00    22.48504482
 12/21 30.01718079
 01/01  09:00:00    22.48504492
 12/21 30.04717912
 01/01  10:00:00    22.48504482
 12/21 30.07717769
 01/01  11:00:00    22.48504482
 12/21 30.0884264
 01/01  12:00:00    22.48504461
 12/21 30.06967808
 01/01  13:00:00    22.4850445
 12/21 30.03967937
 01/01  14:00:00    22.48504503
 12/21 30.0284301
 01/01  15:00:00    22.48504482
 12/21 30.02842996
 01/01  16:00:00    22.48504482
 12/21 30.02842954
 01/01  17:00:00    22.48504461
 12/21 30.0096808
 01/01  18:00:00    22.48504471
 12/21 29.99843139
 01/01  19:00:00    22.48504466
 12/21 29.99843181
 01/01  20:00:00    22.48504469
 12/21 29.99843125
 01/01  21:00:00    22.48504481
 12/21 29.99843167
 01/01  22:00:00    22.48504482
 12/21 30.01718055
 01/01  23:00:00    22.48504455
 12/21 30.00968108
 01/01  24:00:00    22.48504461
 08/21 29.99843153

 07/01  01:00:00    35.83543615
 08/21 36.12686063
 07/01  02:00:00    35.835436
 08/21 36.1041672
 07/01  03:00:00    35.8354359
 08/21 36.09055239
 07/01  04:00:00    35.83543573
 08/21 36.11324487
 07/01  05:00:00    35.83543556
 08/21 36.12685991
 07/01  06:00:00    35.83543589
 08/21 36.14955376
 07/01  07:00:00    35.83543569
 08/21 36.16316903
 07/01  08:00:00    35.83543565
 08/21 36.1631692
 07/01  09:00:00    35.83543556
 08/21 36.16316869
 07/01  10:00:00    35.83543556
 08/21 36.1631692
 07/01  11:00:00    35.83543506
 08/21 36.18586136
 07/01  12:00:00    35.83543556
 08/21 36.1767846
 07/01  13:00:00    35.83543556
 08/21 36.1631692
 07/01  14:00:00    35.83543606
 08/21 36.14047543
 07/01  15:00:00    35.83543456
 08/21 36.12686105
 07/01  16:00:00    35.83543556
 08/21 36.12686054
 07/01  17:00:00    35.83543606
 08/21 36.12686069
 07/01  18:00:00    35.83543506
 08/21 36.12686059
 07/01  19:00:00    35.83543456
 08/21 36.12686069
 07/01  20:00:00    35.83543506
 08/21 36.1268608
 07/01  21:00:00    35.83543506
 08/21 36.12686046
 07/01  22:00:00    35.83543556
 08/21 36.12686046
 07/01  23:00:00    35.83543572
 08/21 36.12686063
 07/01  24:00:00    35.83543569
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153
 01/02  01:00:00    29.99843125
 01/02  02:00:00    29.99843139
 01/02  03:00:00    29.99843139
 01/02  04:00:00    29.99843111
 01/02  05:00:00    29.99843111
 01/02  06:00:00    29.99843152
 01/02  07:00:00    30.01718048
 01/02  08:00:00    30.0471794
 01/02  09:00:00    30.07717699
 01/02  10:00:00    30.10717556
 01/02  11:00:00    30.11842511
 01/02  12:00:00    30.09967666
 01/02  13:00:00    30.08842654
 01/02  14:00:00    30.0696778
 01/02  15:00:00    30.07717741
 01/02  16:00:00    30.0884264
 01/02  17:00:00    30.08842696
 01/02  18:00:00    30.08842724
 01/02  19:00:00    30.1071757
 01/02  20:00:00    30.11842511
 01/02  21:00:00    30.11842511
 01/02  22:00:00    30.13717442
 01/02  23:00:00    30.12967488
 01/02  24:00:00    30.13717371
 01/03  01:00:00    30.12967467
 01/03  02:00:00    30.11842525
 01/03  03:00:00    30.11842554
 01/03  04:00:00    30.11842525
 01/03  05:00:00    30.13717413
 01/03  06:00:00    30.16717209
 01/03  07:00:00    30.17842206
 01/03  08:00:00    30.19717142
 01/03  09:00:00    30.20842041
 01/03  10:00:00    30.22716915
 01/03  11:00:00    30.23841898
 01/03  12:00:00    30.21967038
 01/03  13:00:00    30.20842069
 01/03  14:00:00    30.18967181
 01/03  15:00:00    30.17842254
 01/03  16:00:00    30.1784217
 01/03  17:00:00    30.17842113
 01/03  18:00:00    30.19717156
 01/03  19:00:00    30.20842027
 01/03  20:00:00    30.22716943
 01/03  21:00:00    30.23841828
 01/03  22:00:00    30.23841828
 01/03  23:00:00    30.25716811
 01/03  24:00:00    30.24966797
 01/04  01:00:00    30.21966982
 01/04  02:00:00    30.20842041
 01/04  03:00:00    30.22716985
 01/04  04:00:00    30.21966954
 01/04  05:00:00    30.20842041
 01/04  06:00:00    30.20842015
 01/04  07:00:00    30.20842097
 01/04  08:00:00    30.22716957
 01/04  09:00:00    30.23841916
 01/04  10:00:00    30.23841969
 01/04  11:00:00    30.21967067
 01/04  12:00:00    30.17092321
 01/04  13:00:00    30.12967537
 01/04  14:00:00    30.09967694
 01/04  15:00:00    30.06967851
 01/04  16:00:00    30.05842909
 01/04  17:00:00    30.05842853
 01/04  18:00:00    30.05842909
 01/04  19:00:00    30.05842909
 01/04  20:00:00    30.03968007
 01/04  21:00:00    30.02843066
 01/04  22:00:00    30.02843052
 01/04  23:00:00    30.02843066
 01/04  24:00:00    30.00968136
 01/05  01:00:00    29.97968279
 01/05  02:00:00    29.9684338
 01/05  03:00:00    29.96843324
 01/05  04:00:00    29.94968478
 01/05  05:00:00    29.93843508
 01/05  06:00:00    29.93843508
 01/05  07:00:00    29.93843515
 01/05  08:00:00    29.9571841
 01/05  09:00:00    29.98718282
 01/05  10:00:00    29.99843139
 01/05  11:00:00    29.97968293
 01/05  12:00:00    29.94968436
 01/05  13:00:00    29.9196862
 01/05  14:00:00    29.90843651
 01/05  15:00:00    29.90843665
 01/05  16:00:00    29.92718539
 01/05  17:00:00    29.93843467
 01/05  18:00:00    29.93843439
 01/05  19:00:00    29.95718397
 01/05  20:00:00    29.9684331
 01/05  21:00:00    29.98718268
 01/05  22:00:00    29.99843181
 01/05  23:00:00    30.01718083
 01/05  24:00:00    30.02842996
 01/06  01:00:00    30.02843024
 01/06  02:00:00    30.04717926
 01/06  03:00:00    30.05842867
 01/06  04:00:00    30.05842881
 01/06  05:00:00    30.07717797
 01/06  06:00:00    30.10717598
 01/06  07:00:00    30.11842544
 01/06  08:00:00    30.13717427
 01/06  09:00:00    30.16717285
 01/06  10:00:00    30.19717184
 01/06  11:00:00    30.18967153
 01/06  12:00:00    30.1784224
 01/06  13:00:00    30.15967338
 01/06  14:00:00    30.14842383
 01/06  15:00:00    30.1484234
 01/06  16:00:00    30.14842355
 01/06  17:00:00    30.14842298
 01/06  18:00:00    30.16717285
 01/06  19:00:00    30.1784217
 01/06  20:00:00    30.17842184
 01/06  21:00:00    30.1784224
 01/06  22:00:00    30.17842212
 01/06  23:00:00    30.17842215
 01/06  24:00:00    30.15967338
 01/07  01:00:00    30.14842411
 01/07  02:00:00    30.12967424
 01/07  03:00:00    30.11842582
 01/07  04:00:00    30.13717456
 01/07  05:00:00    30.12967481
 01/07  06:00:00    30.13717385
 01/07  07:00:00    30.14842386
 01/07  08:00:00    30.14842425
 01/07  09:00:00    30.16717228
 01/07  10:00:00    30.17842254
 01/07  11:00:00    30.17842226
 01/07  12:00:00    30.15967296
 01/07  13:00:00    30.12967509
 01/07  14:00:00    30.0996768
 01/07  15:00:00    30.08842668
 01/07  16:00:00    30.0884271
 01/07  17:00:00    30.08842668
 01/07  18:00:00    30.08842668
 01/07  19:00:00    30.08842696
 01/07  20:00:00    30.08842626
 01/07  21:00:00    30.08842696
 01/07  22:00:00    30.0884271
 01/07  23:00:00    30.08842724
 01/07  24:00:00    30.06967808
 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046
 07/02  01:00:00    36.12686096
 07/02  02:00:00    36.12686096
 07/02  03:00:00    36.12686096
 07/02  04:00:00    36.12685995
 07/02  05:00:00    36.12685978
 07/02  06:00:00    36.1268608
 07/02  07:00:00    36.14955326
 07/02  08:00:00    36.16316861
 07/02  09:00:00    36.16316949
 07/02  10:00:00    36.16316884
 07/02  11:00:00    36.16316894
 07/02  12:00:00    36.16316904
 07/02  13:00:00    36.16316886
 07/02  14:00:00    36.14047618
 07/02  15:00:00    36.12686033
 07/02  16:00:00    36.12686028
 07/02  17:00:00    36.12686031
 07/02  18:00:00    36.12686061
 07/02  19:00:00    36.12686033
 07/02  20:00:00    36.1268608
 07/02  21:00:00    36.13981066
 07/02  22:00:00    36.12534957
 07/02  23:00:00    36.11940171
 07/02  24:00:00    36.1194112
 07/03  01:00:00    36.11941053
 07/03  02:00:00    36.09674591
 07/03  03:00:00    36.08314589
 07/03  04:00:00    36.08314577
 07/03  05:00:00    36.10581127
 07/03  06:00:00    36.11941074
 07/03  07:00:00    36.14207582
 07/03  08:00:00    36.15567466
 07/03  09:00:00    36.15567516
 07/03  10:00:00    36.15567533
 07/03  11:00:00    36.15567525
 07/03  12:00:00    36.15567491
 07/03  13:00:00    36.13300987
 07/03  14:00:00    36.11941095
 07/03  15:00:00    36.1194112
 07/03  16:00:00    36.11941069
 07/03  17:00:00    36.0967449
 07/03  18:00:00    36.08314572
 07/03  19:00:00    36.08314648
 07/03  20:00:00    36.10581101
 07/03  21:00:00    36.11941069
 07/03  22:00:00    36.11940994
 07/03  23:00:00    36.11941019
 07/03  24:00:00    36.11941036
 07/04  01:00:00    36.11941086
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 07/04  06:00:00    36.12153371
 07/04  07:00:00    36.11364399
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 07/07  23:00:00    35.63739458
 07/07  24:00:00    35.62398127

POST POST SCRIPT
I tried usingusing the 5ZoneWaterCooled_MultizoneMinMaxRHControl.idf example file recommended by @luisclv. I replaced the Humidifier:Steam:Electric with an autosized EvaporativeCooler:Direct:CelDekPad object. Unfortunately it didn't work so well. I don't know if that's because the humidity controlling objects don't have the ability to control the evaporative cooler or if it just didn't work that well.

Date/Time   PLENUM-1:Zone Air Relative Humidity % SPACE1-1:Zone Air Relative Humidity % SPACE2-1:Zone Air Relative Humidity % SPACE3-1:Zone Air Relative Humidity % SPACE4-1:Zone Air Relative Humidity % SPACE5-1:Zone Air Relative Humidity % [%](Hourly)
 01/01  01:00:00    51.39308405 50.6227215  50.31020329 50.61366559 50.35114189 47.38838323
50.31020329
 01/01  02:00:00    51.12060459 50.40345454 49.92701608 50.38874014 49.95193632 46.49975974
49.92701608
 01/01  03:00:00    51.66171635 50.39599998 49.97986723 50.38034475 49.99369154 46.17197987
49.97986723
 01/01  04:00:00    52.40099555 50.33545801 49.99523801 50.30872292 50.01148337 45.83114765
49.99523801
 01/01  05:00:00    53.03153832 50.31376554 49.99736479 50.2880775  50.00119    45.63775258
49.99736479
 01/01  06:00:00    53.83007585 51.37589648 51.56680174 51.27313333 51.71770193 46.07728109
51.56680174
 01/01  07:00:00    55.53692081 51.30309017 50.96907893 51.24080992 50.89709363 46.13626085
50.96907893
 01/01  08:00:00    46.77669324 37.02046711 35.96658755 37.13803451 36.23723534 36.46840133
35.96658755
 01/01  09:00:00    37.61503947 25.91919628 24.0836249  26.11045698 23.14873182 28.06367736
24.0836249
 01/01  10:00:00    29.12824759 25.59864662 23.85472994 25.90522004 23.38431776 28.2954232
23.85472994
 01/01  11:00:00    31.42517646 28.77039136 26.63164767 29.15415538 26.07282762 30.47431895
26.63164767
 01/01  12:00:00    32.71248513 30.73082964 28.20424186 30.86736715 27.69516957 32.93819554
28.20424186
 01/01  13:00:00    33.85435971 32.13633206 30.04195625 32.22851721 29.61738946 34.64025291
30.04195625
 01/01  14:00:00    34.28482617 32.3589479  30.61109958 32.69990127 30.25084454 34.46706795
30.61109958
 01/01  15:00:00    33.66819838 33.5351735  32.00336106 33.56496003 31.62344188 34.44557616
32.00336106
 01/01  16:00:00    35.58122318 35.92777043 33.84653395 36.03023589 33.29161425 36.7888955
33.84653395
 01/01  17:00:00    37.40854954 37.6911575  35.05209601 38.04793719 34.40210631 38.80756144
35.05209601
 01/01  18:00:00    38.26087009 35.0609164  32.76993293 35.64694696 32.3067546  39.85674924
32.76993293
 01/01  19:00:00    35.72110369 32.49592986 32.0742514  32.69962573 32.10213095 35.24884022
32.0742514
 01/01  20:00:00    39.727088   42.64774329 45.01971647 42.29182268 45.93530245 40.04584019
45.01971647
 01/01  21:00:00    47.67904603 49.71823512 50.67298555 49.40052883 50.91021943 45.62798205
50.67298555
 01/01  22:00:00    49.58229555 50.41738831 50.47234605 50.30630984 50.58180247 47.03459938
50.47234605
 01/01  23:00:00    50.21743229 50.3479494  50.30046068 50.30671967 50.39972228 47.41683987
50.30046068
 01/01  24:00:00    50.74098158 50.31928614 50.29144461 50.30001159 50.38965699 47.52951122
 01/02 50.29144461

 07/01  01:00:00    51.13415178 50.26511235 50.26092975 50.2635493  50.35104876 47.52464572
 01/02 46.33591652
 07/01  02:00:00    51.47822739 50.24476058 50.25360056 50.24246213 50.33504975 47.52701143
 01/02 45.85390796
 07/01  03:00:00    51.72909715 50.26237803 50.25514405 50.2420259  50.32923089 47.50837155
 01/02 45.83639027
 07/01  04:00:00    51.91690795 50.28722272 50.21914945 50.2532367  50.2810871  47.42089376
 01/02 46.01406725
 07/01  05:00:00    52.04488289 50.28251704 50.17635341 50.24307993 50.23229676 47.26329943
 01/02 45.84379207
 07/01  06:00:00    52.26367004 50.28497846 50.14073327 50.24473774 50.18572794 47.13992804
 01/02 42.85281703
 07/01  07:00:00    52.45569679 50.31800465 50.16988659 50.27062143 50.21790398 47.02284795
 01/02 37.90633251
 07/01  08:00:00    49.38784131 41.09368535 41.18245885 41.12173625 41.31010183 41.15733228
 01/02 43.31965934
 07/01  09:00:00    45.1237594  35.7597072  34.85030557 35.87167349 34.59530378 36.81685865
 01/02 45.80833789
 07/01  10:00:00    42.820671   40.06123682 39.29832054 40.19953026 39.14992465 40.62499252
 01/02 41.12565077
 07/01  11:00:00    46.97931123 43.95837973 41.69509082 44.59625946 43.96557754 44.48096249
 01/02 42.58446378
 07/01  12:00:00    50.1055416  48.30247887 46.13222992 48.61962593 47.74941523 48.78539509
 01/02 43.57519621
 07/01  13:00:00    51.30550279 50.15168521 48.00397513 50.17680899 48.88402522 49.90675728
 01/02 45.26842474
 07/01  14:00:00    50.56743525 50.60865407 49.26524944 50.45544831 49.21371435 49.92138128
 01/02 47.4660684
 07/01  15:00:00    49.35639757 49.83650488 48.64463441 49.68659356 48.64971118 49.60759338
 01/02 47.09151596
 07/01  16:00:00    49.27766176 49.92733921 48.06844882 50.02092702 47.98211615 49.65390461
 01/02 46.58557632
 07/01  17:00:00    48.74556763 49.92231333 47.77257505 50.21587023 47.5436416  49.58829947
 01/02 46.81683033
 07/01  18:00:00    47.90582432 47.52370716 44.25562182 48.25030573 43.59509287 50.80182338
 01/02 43.62628617
 07/01  19:00:00    48.91504786 49.25865325 49.49156578 49.37649533 49.67616598 50.49021899
 01/02 41.82965053
 07/01  20:00:00    49.7593146  49.83401441 47.96697712 50.06146309 47.49251668 50.92475392
 01/02 42.81176878
 07/01  21:00:00    47.38403617 49.70572408 49.14170206 49.85353963 49.29053758 50.5284427
 01/02 44.01306324
 07/01  22:00:00    48.56880341 50.3528305  50.34383467 50.40375975 50.4962747  50.11439835
 01/02 44.9922713
 07/01  23:00:00    48.9481086  50.3519565  50.31633866 50.40004204 50.44230291 49.64431516
 01/02 45.76207315
 07/01  24:00:00    49.22964463 50.34633727 50.36014882 50.37680203 50.49115614 49.1490971
 01/03  01:00:00    49.52405212 50.3663872  50.41269764 50.37012708 50.54200913 48.67372673
 01/03  02:00:00    49.85447939 50.33211716 50.34413784 50.33242188 50.45512709 48.30361397
 01/03  03:00:00    50.2733306  50.33955643 50.36132146 50.32606986 50.46970251 47.98471348
 01/03  04:00:00    50.65423366 50.32744876 50.35000375 50.30136713 50.4536274  47.67656096
 01/03  05:00:00    51.04300146 50.34843968 50.30721832 50.30913968 50.39197762 47.42116102
 01/03  06:00:00    51.37343891 50.33418302 50.25012965 50.28500685 50.32839959 47.18244338
 01/03  07:00:00    51.73339373 50.27832799 50.25533954 50.22622356 50.3354283  46.95040658
 01/03  08:00:00    48.39947559 40.28834389 40.0738331  40.35422389 40.24102514 40.45009337
 01/03  09:00:00    42.04456508 32.57663881 30.94188608 32.8426382  30.55122811 34.26384162
 01/03  10:00:00    36.55992247 33.47531475 31.62691472 33.80157282 31.30844742 35.39863127
 01/03  11:00:00    36.64619939 34.17284115 30.97245131 34.46246543 30.77043074 35.78961971
 01/03  12:00:00    35.35971848 33.17789904 30.04347027 33.43339709 29.90627855 36.01525483
 01/03  13:00:00    33.80133171 32.00511653 29.12661421 32.27536512 28.51610195 34.52639818
 01/03  14:00:00    31.15874535 29.11358099 26.74093144 29.68706103 26.25470815 31.88877418
 01/03  15:00:00    28.78715195 28.32609158 26.33779208 28.69426791 25.87157593 30.38568184
 01/03  16:00:00    29.24007901 29.29823925 26.86577943 29.77871206 26.26494648 31.45040799
 01/03  17:00:00    30.46171277 30.2191304  27.3264928  30.8145546  26.61791156 32.76201024
 01/03  18:00:00    30.31364188 26.79359784 24.15816405 27.35177691 23.62195784 32.55654065
 01/03  19:00:00    26.71518831 22.72524661 21.72948839 23.00409185 21.6169623  26.44541519
 01/03  20:00:00    30.86136054 34.80072493 38.28670554 34.32462336 39.62993627 31.57170738
 01/03  21:00:00    45.16952238 48.25862169 50.44738624 47.62796031 50.88859467 41.03364406
 01/03  22:00:00    49.84715807 50.46012076 50.65378598 50.16645938 50.76507    44.25960597
 01/03  23:00:00    51.92924103 51.63452077 51.85217806 51.39678356 52.0130334  45.69132148
 01/03  24:00:00    53.09705762 51.81093101 51.95861708 51.61481454 52.12119011 46.0682922
 01/04  01:00:00    53.74251435 51.59780603 51.7585093  51.41487561 51.88373148 45.98676962
 01/04  02:00:00    54.38026917 51.28744599 51.26515826 51.13402264 51.30524077 45.85027173
 01/04  03:00:00    54.60974435 51.66260521 51.86909963 51.48603912 52.01287296 46.01513813
 01/04  04:00:00    54.8366233  51.47811576 51.69539432 51.29139554 51.81249056 45.76314778
 01/04  05:00:00    55.23568151 51.1164313  51.09110839 50.96289194 51.11116088 45.63629234
 01/04  06:00:00    55.31490669 51.47283985 51.78007887 51.28909592 51.92061888 45.86862371
 01/04  07:00:00    55.55631633 51.40002055 51.61360782 51.226966   51.70841358 45.8662873
 01/04  08:00:00    47.72200656 38.05891823 37.49430361 38.09356806 37.91873551 37.19106924
 01/04  09:00:00    39.41610511 28.26431752 27.15372257 28.38161489 26.499099   29.43774683
 01/04  10:00:00    31.10601151 26.36310989 24.38599072 26.68321567 23.7812686  28.99481388
 01/04  11:00:00    30.68680265 27.19847584 24.65339097 27.67643806 24.0079913  29.60239506
 01/04  12:00:00    30.70867444 27.93697226 25.26468678 28.4819997  24.62280576 30.71312732
 01/04  13:00:00    30.62586463 27.62413488 25.01662638 28.16419849 24.40850489 30.95315434
 01/04  14:00:00    28.89118162 25.54631867 23.59512992 25.9794381  23.19469379 28.88494101
 01/04  15:00:00    27.27448748 25.82400799 24.20650819 26.17169816 23.80658575 27.91590431
 01/04  16:00:00    27.99471657 26.80280852 24.45679045 27.25893539 23.84848236 29.3298183
 01/04  17:00:00    28.54407623 27.01164171 24.20524047 27.56319247 23.51376694 30.55921558
 01/04  18:00:00    28.1655107  23.76527103 21.35775893 24.26637304 20.86859451 29.40841728
 01/04  19:00:00    24.61191169 20.46624893 19.78082302 20.67372163 19.73040101 23.57826903
 01/04  20:00:00    29.59051114 33.25675906 36.82056144 32.71132256 38.1598057  29.36915867
 01/04  21:00:00    45.14234594 48.99043016 51.47816441 48.15801544 52.07769497 39.93001645
 01/04  22:00:00    51.31958452 51.88978509 51.93910738 51.42857317 52.07126274 43.83921512
 01/04  23:00:00    52.66072204 51.66312563 51.71637583 51.40252871 51.85404179 45.04636645
 01/04  24:00:00    53.95676286 51.32628518 51.10633494 51.1469446  51.12270557 45.36887491
 01/05  01:00:00    54.42221281 51.45255952 51.64840242 51.24547727 51.7996283  45.40826689
 01/05  02:00:00    55.25539412 51.45334199 51.52222943 51.26626016 51.59730843 45.53922425
 01/05  03:00:00    55.77759158 51.16187073 50.9627197  51.0194747  50.95430346 45.57549275
 01/05  04:00:00    55.91200598 51.59331023 51.66612149 51.41753102 51.77582064 45.80695321
 01/05  05:00:00    56.02269581 51.49801341 51.52728455 51.30968471 51.61514379 45.54661472
 01/05  06:00:00    56.12243038 51.15709515 51.07693917 50.97041812 51.10982332 45.10002841
 01/05  07:00:00    56.17134935 51.52743072 51.61924504 51.32094228 51.72442503 45.20439928
 01/05  08:00:00    55.26921044 46.13334412 47.75349274 46.00762761 48.32693519 44.13370542
 01/05  09:00:00    61.71186632 49.22068817 50.37629212 49.05489075 50.71915515 46.89988521
 01/05  10:00:00    63.36276468 50.32082786 51.13227095 50.13677618 51.32471733 48.08832902
 01/05  11:00:00    62.31680578 50.35822285 51.24223309 50.18757903 51.42447763 48.53998537
 01/05  12:00:00    60.72016579 50.46508525 51.31618668 50.30358166 51.48654284 48.83581703
 01/05  13:00:00    59.03156482 50.59517171 51.43428631 50.44011093 51.60128112 49.04954958
 01/05  14:00:00    58.09977033 50.71106788 51.5094715  50.55851658 51.66783586 49.2423756
 01/05  15:00:00    54.60140814 45.87491911 48.27301247 51.48685106 48.34231311 48.98302312
 01/05  16:00:00    50.53928166 42.70547625 50.38275829 51.77103538 49.98790757 47.63318137
 01/05  17:00:00    49.83854032 44.67346962 49.49296908 50.98898153 48.6971274  45.70843306
 01/05  18:00:00    51.02505702 48.31353757 51.38324212 51.60239887 51.18420281 44.97032961
 01/05  19:00:00    53.00163348 49.66645455 51.10509737 51.41771613 50.89284771 44.34871656
 01/05  20:00:00    53.90755643 50.83345621 51.73161805 51.70153823 51.71197641 44.14958601
 01/05  21:00:00    54.92152971 51.1863073  51.51299849 51.57613498 51.49545223 43.78723585
 01/05  22:00:00    55.82093036 51.09929315 51.04061424 51.23188795 50.98952417 43.30052371
 01/05  23:00:00    56.68863179 51.75910479 51.76553084 51.71045576 51.80679082 43.37996508
 01/05  24:00:00    57.7737843  52.03834405 51.84517213 51.90984294 51.85590634 43.37303976
 01/06  01:00:00    58.28559157 51.67849196 51.3909822  51.49903775 51.37484802 42.77486375
 01/06  02:00:00    58.82772194 51.65308573 51.24553463 51.4500714  51.19014705 42.515803
 01/06  03:00:00    58.81292886 51.43904222 51.08932827 51.2241344  51.07252983 42.19391786
 01/06  04:00:00    59.36150962 51.48446264 51.1237746  51.25847831 51.09349487 42.09364421
 01/06  05:00:00    59.89038831 51.57884219 51.20351156 51.34273731 51.16882173 42.03767561
 01/06  06:00:00    60.27836741 51.57279637 51.22581039 51.32458282 51.19332161 41.93299284
 01/06  07:00:00    60.67337417 51.69640307 51.33375697 51.44384898 51.2875744  41.94645567
 01/06  08:00:00    57.821632   45.45256399 45.06865682 45.36372096 46.68043736 40.87732556
 01/06  09:00:00    61.7104814  47.68272405 45.70788454 47.8633959  49.84117466 45.28658468
 01/06  10:00:00    65.0268819  48.53467446 48.48827181 49.23901008 50.80131387 46.94559212
 01/06  11:00:00    65.22575265 48.84410841 50.09005977 49.84299882 51.05197629 46.87810616
 01/06  12:00:00    64.12832722 49.21292809 50.64349906 49.95924864 50.98216029 46.91984674
 01/06  13:00:00    62.34543228 49.12591058 50.66533406 49.69925778 51.00111789 46.62445212
 01/06  14:00:00    60.96951578 49.21055652 50.7498321  49.60933582 51.07004927 46.61868903
 01/06  15:00:00    57.210825   42.99485008 48.49668694 52.39036978 48.85771183 47.018713
 01/06  16:00:00    51.60429329 40.67475113 50.4321132  51.98732886 50.3590985  45.22628144
 01/06  17:00:00    51.39706511 43.47619197 49.51971535 50.92272641 48.91924947 43.51095892
 01/06  18:00:00    52.41491836 47.39554909 51.20312998 51.29068642 51.08106708 42.91588573
 01/06  19:00:00    54.37145511 49.04828362 50.91121369 51.14369675 50.75056778 42.65537806
 01/06  20:00:00    55.26884865 50.28987159 51.4740138  51.3405798  51.48480706 42.72336537
 01/06  21:00:00    56.23860071 50.74759365 51.3637434  51.22431498 51.38256297 42.66855702
 01/06  22:00:00    57.11907813 50.79022158 50.94160457 50.96877258 50.9111128  42.58776439
 01/06  23:00:00    57.64849023 51.26777835 51.47087474 51.25312028 51.52318172 42.78433689
 01/06  24:00:00    58.47763965 51.55910555 51.54286769 51.46709515 51.54911059 43.08743724
 01/07  01:00:00    59.07849927 51.82659426 51.53242499 51.70835264 51.47723888 43.4512721
 01/07  02:00:00    58.68047172 51.43317013 51.04185453 51.30606964 50.99794356 43.2015311
 01/07  03:00:00    58.7849193  51.37101205 51.05487783 51.2141389  51.01939431 43.04445225
 01/07  04:00:00    59.0002911  51.36202475 51.04568386 51.19090317 51.00512442 42.97902712
 01/07  05:00:00    59.09992214 51.30809402 51.0322987  51.12594914 50.99655461 42.86723987
 01/07  06:00:00    59.4950424  51.5750809  51.21834763 51.40281938 51.15245905 43.09483771
 01/07  07:00:00    60.04466769 51.87210084 51.39121004 51.71389686 51.30605278 43.39767531
 01/07  08:00:00    45.69579818 33.3408966  30.7387181  33.47162707 31.80419565 31.24580893
 01/07  09:00:00    29.49465296 21.8500391  19.86143413 22.05309121 22.32771011 21.9330526
 01/07  10:00:00    24.55798704 18.66346912 16.92303739 18.1982633  15.41880932 20.18764515
 01/07  11:00:00    20.56248665 16.74348931 13.21279258 16.84122088 11.63180548 20.53422739
 01/07  12:00:00    18.61782979 15.78123974 12.45637874 16.34566076 11.91729842 20.48863725
 01/07  13:00:00    17.95027807 15.24992298 12.95436009 16.14077162 12.24346501 20.20045735
 01/07  14:00:00    16.63333098 14.11498474 11.95111384 14.52162011 11.45952685 18.46912723
 01/07  15:00:00    15.41560633 14.08857196 12.89280682 14.93494501 12.50434477 17.84552259
 01/07  16:00:00    17.16620944 16.2488238  14.5087669  17.32098312 13.89627001 20.30938367
 01/07  17:00:00    18.70682868 18.21542132 14.98249365 18.28276699 14.29972769 22.00349114
 01/07  18:00:00    18.1198257  14.80579025 12.49290632 14.95290313 12.23320689 19.54113459
 01/07  19:00:00    15.68688534 13.66012828 14.00337847 13.73396904 14.20073201 15.599075
 01/07  20:00:00    23.2977999  27.0470568  31.83470437 26.67989055 33.19092007 22.27472946
 01/07  21:00:00    41.62680662 46.0516102  50.10349869 45.40013091 50.88677435 35.68341008
 01/07  22:00:00    51.72828731 51.16115008 51.80414405 50.91415797 51.8353747  42.2956356
 01/07  23:00:00    53.97037294 52.01163736 51.97478522 51.9305533  52.03055755 44.68559869
 01/07  24:00:00    55.02033179 51.98006166 51.71995613 51.92566982 51.73815073 45.41591241
 07/01  01:00:00    49.36715381 50.76484674 46.33591652 50.49925879 45.36735544 54.34325158
 07/01  02:00:00    50.12665648 49.98573344 45.85390796 49.78620976 44.8978599  54.48034353
 07/01  03:00:00    50.43239771 49.99871311 45.83639027 49.8066942  44.88206654 54.57827623
 07/01  04:00:00    50.62542065 50.26111735 46.01406725 50.06799555 45.05681466 54.67912
 07/01  05:00:00    50.80704473 50.59448006 45.84379207 49.6078206  45.26855698 54.76764263
 07/01  06:00:00    50.54770647 50.22353541 42.85281703 45.48464493 44.66710283 54.60205301
 07/01  07:00:00    49.67116857 48.94354273 37.90633251 40.82639152 43.25942157 53.98251632
 07/01  08:00:00    46.5184492  47.43032571 43.31965934 43.9220089  45.90316374 49.56790305
 07/01  09:00:00    47.12040732 49.52100073 45.80833789 47.41102894 49.86837508 50.11886051
 07/01  10:00:00    43.90464917 47.90010928 41.12565077 45.51847886 46.27719982 49.83366702
 07/01  11:00:00    41.50336468 46.36534337 42.58446378 45.76409657 46.90355755 49.74148526
 07/01  12:00:00    40.72327796 46.64340531 43.57519621 45.60688444 46.76131148 50.08429307
 07/01  13:00:00    40.4022739  47.03723515 45.26842474 46.32977347 47.69108484 50.16951348
 07/01  14:00:00    40.2566871  47.62739055 47.4660684  47.15944498 49.36295117 50.17143473
 07/01  15:00:00    40.23242907 47.57790708 47.09151596 46.91776545 48.00386876 50.04112883
 07/01  16:00:00    39.97820389 47.51846474 46.58557632 46.59082953 46.76591782 50.12140789
 07/01  17:00:00    39.99242869 47.69358009 46.81683033 46.66148402 46.68918269 50.17932983
 07/01  18:00:00    40.6531965  47.29532325 43.62628617 46.56426115 42.69694805 50.99034078
 07/01  19:00:00    39.50913646 45.95722102 41.82965053 45.32876312 40.95425515 50.32836329
 07/01  20:00:00    41.10976146 47.30441958 42.81176878 46.75111331 41.83772168 51.26382307
 07/01  21:00:00    42.97239407 48.55081017 44.01306324 48.10843009 43.04688212 52.13876394
 07/01  22:00:00    44.86467555 49.55983614 44.9922713  49.18011222 44.02676491 52.91679073
 07/01  23:00:00    46.62458547 50.331047   45.76207315 50.00579528 44.79351285 53.56442662
 07/01  24:00:00    48.2001363  50.98974698 46.39585662 50.68791436 45.42166784 54.10581527
 07/02  01:00:00    49.60598136 51.53464378 46.95222249 51.23656416 45.97089242 54.5627189
 07/02  02:00:00    50.87248787 51.88035567 47.30405656 51.59813603 46.31795496 54.95104083
 07/02  03:00:00    51.97130524 52.15723504 47.57858928 51.88381191 46.5880851  55.27008857
 07/02  04:00:00    52.85391267 52.460252   47.8558408  52.18276792 46.86031547 55.57712117
 07/02  05:00:00    53.52683652 52.5768996  47.60898786 51.59809626 46.95194948 55.8199301
 07/02  06:00:00    53.64167079 52.08706935 44.76761456 47.65661465 46.29837049 55.79116262
 07/02  07:00:00    52.90702561 51.03617155 39.95096778 43.13446166 44.98488394 55.29272925
 07/02  08:00:00    48.99081421 47.12289949 44.03895041 45.11270622 45.49626969 50.09619172
 07/02  09:00:00    48.6164662  49.30044092 46.39869866 48.27119986 49.74645746 50.11612055
 07/02  10:00:00    45.31797484 48.67884462 41.64775609 46.41145955 46.50404996 50.08944736
 07/02  11:00:00    42.34976915 46.75436942 42.31513213 46.03137132 47.17069102 49.82295047
 07/02  12:00:00    41.18245227 46.91714718 43.16272363 46.08527199 47.19709145 50.06202126
 07/02  13:00:00    40.20737594 47.17798111 45.16579452 46.76162008 48.35730836 50.15944367
 07/02  14:00:00    39.45670703 47.61614292 47.79113124 47.48532348 49.62224276 50.16675271
 07/02  15:00:00    38.83266795 47.3048354  47.35714931 47.31573457 46.27285474 50.10223458
 07/02  16:00:00    38.09128008 46.836115   46.97828518 47.04882507 44.29193526 50.1200371
 07/02  17:00:00    37.79064856 46.7985617  47.21858721 47.06997189 43.49399714 50.17634566
 07/02  18:00:00    37.61240715 46.13962473 44.26409858 46.47379138 39.59513027 50.72819354
 07/02  19:00:00    35.25527429 43.80798559 41.95260447 44.34139685 34.65960515 48.94985335
 07/02  20:00:00    36.08736936 44.70316521 42.79267936 45.27837794 36.40007889 49.2151386
 07/02  21:00:00    38.05865631 46.16076531 44.06187086 46.7178784  39.78185764 50.07145376
 07/02  22:00:00    40.1609215  47.24618615 45.04853066 47.80044449 42.15330427 50.90974595
 07/02  23:00:00    42.14217078 48.11864325 45.84401858 48.66279871 43.82085658 51.65147191
 07/02  24:00:00    43.91315742 48.79620957 46.48549366 49.35129054 44.98620333 52.28361501
 07/03  01:00:00    45.45880287 49.41793303 47.06870555 49.99014146 45.87330416 52.8112934
 07/03  02:00:00    46.79215098 49.99486244 47.5937473  50.57462428 46.57127805 53.2268946
 07/03  03:00:00    48.01168989 50.44645207 48.03216373 50.99483089 47.10988407 53.59669737
 07/03  04:00:00    49.16664596 50.81334256 48.38736134 51.36047141 47.52165635 53.96691555
 07/03  05:00:00    50.07988123 51.02761838 48.18341323 50.79747848 47.73882918 54.25166451
 07/03  06:00:00    50.2781383  50.59505932 45.07631078 46.60733429 47.12121138 54.22739289
 07/03  07:00:00    49.57480364 49.15440535 39.76955587 41.66716758 45.50918971 53.69275391
 07/03  08:00:00    47.57061497 47.01971324 44.17514087 44.27263183 46.51583622 49.64830935
 07/03  09:00:00    47.6587725  49.3717804  45.87884705 47.37654264 49.85131709 50.10508655
 07/03  10:00:00    43.78618553 47.56200703 40.96799676 45.28436127 46.1651587  49.80320867
 07/03  11:00:00    41.38099127 46.21894812 42.5090513  45.62587594 46.83780217 49.73944342
 07/03  12:00:00    40.30234648 46.115151   43.28091156 45.46486681 46.5945661  50.07617466
 07/03  13:00:00    39.47036206 46.47142942 45.08332289 46.19336828 47.41229806 50.16802679
 07/03  14:00:00    38.75853516 47.1882219  46.76087438 47.0783973  48.37611198 50.16754657
 07/03  15:00:00    38.2846002  46.80673405 46.41681422 46.73394321 45.8936192  50.12289221
 07/03  16:00:00    37.62395328 46.42393554 46.05903473 46.29358299 44.84964521 50.12974205
 07/03  17:00:00    37.4838845  46.20736935 46.20156224 46.1637844  43.83870207 50.18018816
 07/03  18:00:00    37.14995116 44.93856878 44.54019929 44.98295236 39.09921248 50.83571652
 07/03  19:00:00    34.37619522 41.78363789 40.68032689 42.08112173 33.57705785 48.83202922
 07/03  20:00:00    34.53134347 41.73544895 40.62620647 42.15903438 34.38326258 48.6475291
 07/03  21:00:00    35.81325622 42.70785771 41.44939646 43.14131465 37.39360458 49.18152044
 07/03  22:00:00    37.25085211 43.56774414 42.18516341 43.97863638 39.48311447 49.82355075
 07/03  23:00:00    38.67115182 44.40035159 42.89738572 44.77766986 41.01814868 50.4378393
 07/03  24:00:00    40.00367076 45.20774177 43.59770759 45.56763365 42.19866065 50.97195026
 07/04  01:00:00    41.23535485 45.72135572 44.09081538 46.08725647 42.97027475 51.40460476
 07/04  02:00:00    42.3264327  46.1848116  44.53298739 46.5650773  43.56969768 51.75168237
 07/04  03:00:00    43.31843718 46.55423092 44.89184849 46.93681501 44.01718825 52.07985815
 07/04  04:00:00    44.19050417 46.71394967 45.08602231 47.10062123 44.26253279 52.36644017
 07/04  05:00:00    44.88196453 46.93310822 45.28068911 47.30706056 44.48509338 52.58682425
 07/04  06:00:00    45.37482844 46.96215073 45.09845877 47.10448851 44.35040903 52.73557617
 07/04  07:00:00    45.61667253 46.56602453 44.31580852 46.24887947 43.70602083 52.77329313
 07/04  08:00:00    45.80486686 47.12928417 47.21744447 47.17994891 47.28357438 48.77656974
 07/04  09:00:00    47.67869725 49.80110336 50.30012254 49.72194835 50.37889257 49.57726534
 07/04  10:00:00    45.11974278 48.17826709 45.08546225 47.01988556 47.77338544 50.13634265
 07/04  11:00:00    42.2801224  45.84988349 43.21864145 45.62342097 45.82057614 49.7352672
 07/04  12:00:00    40.52024684 45.482616   43.5045931  44.981331   45.55528986 50.06928621
 07/04  13:00:00    39.58902835 46.18191772 45.10420814 45.86622484 46.69204388 50.17397305
 07/04  14:00:00    39.31791167 47.22804891 47.66466541 46.92191378 49.61434568 50.11363683
 07/04  15:00:00    39.86054221 47.66009827 47.43388449 47.0620277  48.41835716 50.04108946
 07/04  16:00:00    39.9416231  47.3656779  46.60842606 46.56847248 46.35767521 50.11864411
 07/04  17:00:00    39.99409269 47.57413673 47.13008554 46.83102425 47.03958147 50.18179666
 07/04  18:00:00    40.67166066 47.26478096 43.60506435 46.86299792 42.67138453 51.02524128
 07/04  19:00:00    39.44623861 45.65632858 41.75859029 45.39512317 40.92032444 50.38308943
 07/04  20:00:00    40.87618455 46.50439233 42.32069232 46.29988824 41.38595898 51.25627357
 07/04  21:00:00    42.39096856 47.37725912 43.13383132 47.22627363 42.20657391 51.9939237
 07/04  22:00:00    43.85002269 48.28481151 43.90516891 48.13016788 42.97818297 52.59282432
 07/04  23:00:00    45.3356256  49.05843134 44.59688361 48.91081593 43.66620986 53.12461495
 07/04  24:00:00    46.73639654 49.34935231 44.99761383 49.26882592 44.06483585 53.59915391
 07/05  01:00:00    47.79077507 48.98527591 44.77577755 48.94246172 43.85102166 53.0324692
 07/05  02:00:00    48.5523186  49.06514782 44.86490812 49.04706831 43.94021797 52.9070951
 07/05  03:00:00    49.24905609 49.42476803 45.15349766 49.41235117 44.22392401 53.00620992
 07/05  04:00:00    49.96641066 49.75174397 45.43134922 49.7370891  44.49666054 53.16882208
 07/05  05:00:00    50.60337345 50.03282286 45.34568011 49.38651997 44.71416389 53.34238354
 07/05  06:00:00    50.67131493 49.42602688 42.44472415 45.3347319  43.98609802 53.28508867
 07/05  07:00:00    49.86963065 47.890475   37.48484369 40.50759961 42.40818549 52.75581248
 07/05  08:00:00    48.01859044 45.905589   32.72550352 37.45397959 40.53696115 51.82569892
 07/05  09:00:00    45.32438474 43.72316981 29.05461353 36.36125202 38.68822252 50.71246741
 07/05  10:00:00    42.18997421 41.79536467 27.17249692 36.77306673 37.0810972  49.67210634
 07/05  11:00:00    39.12119136 40.19666348 26.95313559 37.20652718 35.77319078 48.73842181
 07/05  12:00:00    36.5270961  38.81018369 27.96941735 36.98426838 34.59125932 47.8857491
 07/05  13:00:00    34.11587739 37.96125076 29.81136235 36.85259643 33.82156017 47.2212901
 07/05  14:00:00    31.95153465 37.19818238 31.0696889  36.47183329 32.33151724 46.62980348
 07/05  15:00:00    30.46784722 36.95583042 31.7439856  36.17021709 30.78988555 46.08485931
 07/05  16:00:00    29.99424909 37.55899405 32.61924946 36.56487452 30.80161788 45.80791385
 07/05  17:00:00    30.64418101 39.14962547 34.29444407 38.16460701 32.65891305 45.97170684
 07/05  18:00:00    32.10842025 40.94714934 36.1650398  40.0670321  34.79169123 46.60423158
 07/05  19:00:00    33.98400503 42.32811244 37.75562828 41.65245339 36.55012309 47.37887902
 07/05  20:00:00    35.98903824 43.84891202 39.43025731 43.43443642 38.3611433  48.1916578
 07/05  21:00:00    38.09371056 45.22556038 40.87761134 44.9715398  39.88819589 49.05005247
 07/05  22:00:00    40.19252404 46.25533716 41.95065627 46.07178598 41.00269004 49.83238376
 07/05  23:00:00    42.14737825 47.07254937 42.78848822 46.93381596 41.85986617 50.49774357
 07/05  24:00:00    43.87745697 47.73435931 43.44868299 47.62146731 42.52745763 51.06157656
 07/06  01:00:00    45.4589899  48.37394318 44.05880107 48.27460134 43.13698635 51.62405697
 07/06  02:00:00    46.87963324 48.86065773 44.54773763 48.78695863 43.62274286 52.12640217
 07/06  03:00:00    48.1034616  49.26510163 44.96324095 49.23497949 44.03365014 52.54133238
 07/06  04:00:00    49.11348471 49.54130079 45.24785525 49.53352682 44.31468899 52.86102627
 07/06  05:00:00    49.87446885 49.67134788 45.05042418 49.03121434 44.41889446 53.1142455
 07/06  06:00:00    50.01348817 49.12416687 42.38454217 45.29786724 43.70091701 53.135471
 07/06  07:00:00    49.48565491 47.9145455  39.43115729 42.58800514 42.21008666 52.74226433
 07/06  08:00:00    48.20470787 46.22145585 36.51246175 40.56532877 40.31140073 52.12382196
 07/06  09:00:00    46.31972483 44.44915347 34.06664265 39.27342432 38.44444015 51.35208874
 07/06  10:00:00    44.11073039 42.95006811 32.21808061 38.89414337 37.02962038 50.5458936
 07/06  11:00:00    41.75724753 41.53151318 30.63200556 38.97205625 36.14251786 49.76953913
 07/06  12:00:00    39.14409211 40.36893868 30.6836707  38.79293109 35.45897698 48.99093825
 07/06  13:00:00    36.51261409 39.52057344 32.06652942 38.61417444 34.92067098 48.20583334
 07/06  14:00:00    34.46320184 38.96714138 33.21128296 38.49899355 33.77742078 47.66790495
 07/06  15:00:00    32.84727399 38.38214677 33.87882024 38.31332245 31.24281457 47.18631063
 07/06  16:00:00    31.80282668 38.19138142 34.50773367 38.47689519 28.70609532 46.75913914
 07/06  17:00:00    31.44793355 38.60210979 35.28866159 39.03775185 27.20647904 46.51434696
 07/06  18:00:00    31.85558448 39.58867617 36.31836701 39.95959376 26.8980779  46.54266197
 07/06  19:00:00    32.94551981 41.03213388 37.65029503 41.27016457 28.23872385 46.87257187
 07/06  20:00:00    34.70609459 42.83731243 39.28388941 42.99969336 32.04678333 47.5243984
 07/06  21:00:00    36.92284663 44.50330301 40.74225682 44.59835721 35.98604735 48.46453084
 07/06  22:00:00    39.1836342  45.78236439 41.85315147 45.82222419 38.66329599 49.3848796
 07/06  23:00:00    41.28369293 46.75802612 42.71069656 46.76283033 40.46044915 50.1668643
 07/06  24:00:00    43.15544277 47.36361803 43.27570513 47.34465384 41.59173407 50.81987885
 07/07  01:00:00    44.79039628 48.48660283 44.25865088 48.46369371 42.88601313 52.25239856
 07/07  02:00:00    46.2246567  49.28884203 44.97881007 49.28477608 43.78595399 53.27905853
 07/07  03:00:00    47.40670522 49.66705703 45.36261192 49.67594192 44.27596353 53.81842346
 07/07  04:00:00    48.39175897 50.09123169 45.75156373 50.11505291 44.72245966 54.20354552
 07/07  05:00:00    49.21242418 50.35302002 45.69409481 49.79320156 44.99353003 54.53815369
 07/07  06:00:00    49.30276499 49.79704119 42.87891989 45.86858088 44.29886054 54.52568568
 07/07  07:00:00    48.65249349 48.61609749 38.89256591 42.08960781 42.87725456 53.98235389
 07/07  08:00:00    46.27350026 47.39351843 45.26630502 46.0674108  45.48904498 49.49845762
 07/07  09:00:00    47.03117245 49.60578484 48.71980101 49.03475013 49.95825341 50.09659272
 07/07  10:00:00    44.21980328 48.47021588 43.84233529 46.61021216 47.97782698 50.07586228
 07/07  11:00:00    42.29641112 46.88310623 43.3091445  46.31031398 47.44298637 49.74264206
 07/07  12:00:00    40.59469645 46.40379438 43.44198888 45.75331799 46.68319555 50.07387296
 07/07  13:00:00    39.76767718 46.65842922 45.16701529 46.34760103 47.60400113 50.16461526
 07/07  14:00:00    39.2521288  47.32550896 47.30999995 47.20248714 48.82848643 50.17415121
 07/07  15:00:00    38.75127866 46.95151303 46.94214081 46.97979355 45.87426605 50.10348501
 07/07  16:00:00    37.9913074  46.46124287 46.72841023 46.73900999 44.10651414 50.12409538
 07/07  17:00:00    37.55625979 46.27755417 46.91831467 46.73618237 43.08766946 50.17779805
 07/07  18:00:00    37.20579695 45.4570746  44.56519713 46.10736199 38.37817634 50.84516847
 07/07  19:00:00    34.60378591 42.93350943 41.58816543 43.71525937 33.4391561  48.96420485
 07/07  20:00:00    35.18236343 43.37209058 42.04501207 44.20063842 34.83680552 48.96034785
 07/07  21:00:00    37.01094936 44.69387288 43.15791367 45.47251239 38.37297964 49.68570973
 07/07  22:00:00    38.95616995 45.80171911 44.10188512 46.53480463 40.86668568 50.47212671
 07/07  23:00:00    40.79868195 46.62390553 44.83946479 47.33729346 42.55221316 51.18011803
 07/07  24:00:00    42.45468224 47.33871566 45.48621685 48.04409856 43.76077976 51.78827797
46.39585662

I am setting up an HVAC system for a computer room. The person density in the computer room is 0 and the computers are always on generating much heat. There is no outdoor airflow due to fear of particles, and the cooling coil is always on, day and night, which condenses much of the water out of the air. Low humidity is bad for computers since static charge can build up and damage components, so water must be added to the air in the loop.

The best objects I've found is either of the EvaporativeCooler:Direct:CelDekPad or EvaporativeCooler:Direct:ResearchSpecial as opposed to the humidifies which heat the water. There is no reason to add heat to the airloop serving the computer equipment as the computer room never, ever needs heating.

However, I've run into a problem on how to control the direct evaporative coolers based on humidity. The ideal relative humidity for computer equipment is 45% - 55% and I don't see an easy way for the EvaporativeCooler:Direct to be turned on and off based on the humidity. What object would you recommend that are smart enough to control the fan, cooling coil, heating coil that is in in the airloop but is never used, and evaporative cooler to meet a temperature of 28C and relative humidity kept between 45% - 55%?

A possible alternative is to use a Humidifier:Steam:Electric object and specify the parameters in such a way that it evaporates water but generates zero heat. Then there are appropriate objects for controlling the equipment in the airloop based on temperature and humidity while not unnecessarily heating the computer equipment with a kluge parameter choice of the Humidifier:Steam:Electric object.

POST SCRIPT
Providing some data from the simulation, the humidity can get quite low if there is there is no humidifier present. These are the relative humidity values for the first day of January and the first day of July in a data center that does not possess a humidifier.

Date/Time   DATACENTER_MID_ZN_6:Zone Air Relative Humidity [%](Hourly)
 01/01  01:00:00    29.96093349
 01/01  02:00:00    29.95718355
 01/01  03:00:00    29.9684331
 01/01  04:00:00    29.96843366
 01/01  05:00:00    29.98718226
 01/01  06:00:00    29.97968237
 01/01  07:00:00    29.98718184
 01/01  08:00:00    30.01718079
 01/01  09:00:00    30.04717912
 01/01  10:00:00    30.07717769
 01/01  11:00:00    30.0884264
 01/01  12:00:00    30.06967808
 01/01  13:00:00    30.03967937
 01/01  14:00:00    30.0284301
 01/01  15:00:00    30.02842996
 01/01  16:00:00    30.02842954
 01/01  17:00:00    30.0096808
 01/01  18:00:00    29.99843139
 01/01  19:00:00    29.99843181
 01/01  20:00:00    29.99843125
 01/01  21:00:00    29.99843167
 01/01  22:00:00    30.01718055
 01/01  23:00:00    30.00968108
 01/01  24:00:00    29.99843153

 07/01  01:00:00    36.12686063
 07/01  02:00:00    36.1041672
 07/01  03:00:00    36.09055239
 07/01  04:00:00    36.11324487
 07/01  05:00:00    36.12685991
 07/01  06:00:00    36.14955376
 07/01  07:00:00    36.16316903
 07/01  08:00:00    36.1631692
 07/01  09:00:00    36.16316869
 07/01  10:00:00    36.1631692
 07/01  11:00:00    36.18586136
 07/01  12:00:00    36.1767846
 07/01  13:00:00    36.1631692
 07/01  14:00:00    36.14047543
 07/01  15:00:00    36.12686105
 07/01  16:00:00    36.12686054
 07/01  17:00:00    36.12686069
 07/01  18:00:00    36.12686059
 07/01  19:00:00    36.12686069
 07/01  20:00:00    36.1268608
 07/01  21:00:00    36.12686046
 07/01  22:00:00    36.12686046
 07/01  23:00:00    36.12686063
 07/01  24:00:00    36.12686046

POST POST SCRIPT
I tried using the 5ZoneWaterCooled_MultizoneMinMaxRHControl.idf example file recommended by @luisclv. I replaced the Humidifier:Steam:Electric with an autosized EvaporativeCooler:Direct:CelDekPad object. Unfortunately it didn't work so well. well since the humidity is supposed to stay between 40% and 50%. I don't know if that's because the humidity controlling objects don't have the ability to control the evaporative cooler or if it just didn't work that well.

Date/Time   SPACE2-1:Zone Air Relative Humidity [%](Hourly)
 01/01  01:00:00    50.31020329
 01/01  02:00:00    49.92701608
 01/01  03:00:00    49.97986723
 01/01  04:00:00    49.99523801
 01/01  05:00:00    49.99736479
 01/01  06:00:00    51.56680174
 01/01  07:00:00    50.96907893
 01/01  08:00:00    35.96658755
 01/01  09:00:00    24.0836249
 01/01  10:00:00    23.85472994
 01/01  11:00:00    26.63164767
 01/01  12:00:00    28.20424186
 01/01  13:00:00    30.04195625
 01/01  14:00:00    30.61109958
 01/01  15:00:00    32.00336106
 01/01  16:00:00    33.84653395
 01/01  17:00:00    35.05209601
 01/01  18:00:00    32.76993293
 01/01  19:00:00    32.0742514
 01/01  20:00:00    45.01971647
 01/01  21:00:00    50.67298555
 01/01  22:00:00    50.47234605
 01/01  23:00:00    50.30046068
 01/01  24:00:00    50.29144461

 07/01  01:00:00    46.33591652
 07/01  02:00:00    45.85390796
 07/01  03:00:00    45.83639027
 07/01  04:00:00    46.01406725
 07/01  05:00:00    45.84379207
 07/01  06:00:00    42.85281703
 07/01  07:00:00    37.90633251
 07/01  08:00:00    43.31965934
 07/01  09:00:00    45.80833789
 07/01  10:00:00    41.12565077
 07/01  11:00:00    42.58446378
 07/01  12:00:00    43.57519621
 07/01  13:00:00    45.26842474
 07/01  14:00:00    47.4660684
 07/01  15:00:00    47.09151596
 07/01  16:00:00    46.58557632
 07/01  17:00:00    46.81683033
 07/01  18:00:00    43.62628617
 07/01  19:00:00    41.82965053
 07/01  20:00:00    42.81176878
 07/01  21:00:00    44.01306324
 07/01  22:00:00    44.9922713
 07/01  23:00:00    45.76207315
 07/01  24:00:00    46.39585662