Hello,
I tried to make a cooling limit capacity to the object ZoneHVAC:IdealLoadsAirSystem in my idf but in the results the limit seems to be exceeded. I didn't have any problem with the heating limit capacity.
The ZoneHVAC:IdealLoadsAirSystem is defined as :
ZoneHVAC:IdealLoadsAirSystem,
ZONE+00_+01_+00 Ideal Loads, !- Name
, !- Availability Schedule Name
ZONE+00_+01_+00 In Node, !- Zone Supply Air Node Name
ZONE+00_+01_+00 Ex Node, !- Zone Exhaust Air Node Name
, !- System Inlet Air Node Name
50, !- Maximum Heating Supply Air Temperature
13, !- Minimum Cooling Supply Air Temperature
0.0156, !- Maximum Heating Supply Air Humidity Ratio
0.0077, !- Minimum Cooling Supply Air Humidity Ratio
LimitCapacity, !- Heating Limit
autosize, !- Maximum Heating Air Flow Rate
30000, !- Maximum Sensible Heating Capacity
LimitCapacity, !- Cooling Limit
autosize, !- Maximum Cooling Air Flow Rate
100000, !- Maximum Total Cooling Capacity
Heating Availability Schedule, !- Heating Availability Schedule Name
Cooling Availability Schedule, !- Cooling Availability Schedule Name
None, !- Dehumidification Control Type
1, !- Cooling Sensible Heat Ratio
None, !- Humidification Control Type
, !- Design Specification Outdoor Air Object Name
, !- Outdoor Air Inlet Node Name
, !- Demand Controlled Ventilation Type
, !- Outdoor Air Economizer Type
, !- Heat Recovery Type
, !- Sensible Heat Recovery Effectiveness
; !- Latent Heat Recovery Effectiveness
(remark: the problem is increased when there is heat recovery)
The TDS gives these results :
If I zoom in on a date with a peak above the limit :
Thank you for your help.
