Hi guys,
I got a hotel model (a FCU+PAU proposed model compared with LEED baseline) with dual thermalstat setpoint (22~24/25 generally) all the year round. Somehow the HVAC energy consumption is way higher than expectation. When I digging out the issue. It is found that some area are working towards the 22 degree C all the year round. For me it seems that the system overcools and then reheat but the setting are quite general that I have struggled for a while but just cannot find how to correct it. The Sensible Heat Gain Summary also shows something weird that 'HVAC Zone Eq & Other Sensible Air Cooling [kWh]' shows considerabily positive heat gain.
I have a attached the schedule setting and also sensinble heat gain summary. Can anybody help to have a look what is going wrong? many thanks!
Allison
Schedule:Compact,
Office Heating SP Sch, !- Name
Temperature, !- Schedule Type Limits Name
Through: 31 Dec, !- Field 1
For: AllDays, !- Field 2
Until: 06:00, !- Field 3
-50, !- Field 4
Until: 07:00, !- Field 5
14, !- Field 6
Until: 08:00, !- Field 7
20, !- Field 8
Until: 19:00, !- Field 9
22, !- Field 10
Until 20:00, !- Field 11
20, !- Field 12
Until: 21:00, !- Field 13
14, !- Field 14
Until: 24:00, !- Field 15
-50; !- Field 16
Schedule:Compact,
Office Cooling SP Sch, !- Name
Temperature, !- Schedule Type Limits Name
Through: 31 Dec, !- Field 1
For: AllDays, !- Field 2
Until: 06:00, !- Field 3
100, !- Field 4
Until: 07:00, !- Field 5
26, !- Field 6
Until: 19:00, !- Field 7
24, !- Field 8
Until: 24:00, !- Field 9
100; !- Field 10
HVACTemplate:Thermostat,
Office_thermo, !- Name
Office Heating SP Sch, !- Heating Setpoint Schedule Name
, !- Constant Heating Setpoint {C}
Office Cooling SP Sch, !- Cooling Setpoint Schedule Name
; !- Constant Cooling Setpoint {C}
