Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
As a follow-up. There is indeed a constraint placed on Ideal Air Loads (alluded to in the following error):
** Severe ** InitPurchasedAir: For ZoneHVAC:IdealLoadsAirSystem = UNDERGROUND IDEAL LOADS AIR SYSTEM serving Zone UNDERGROUND
** ~~~ ** ..the minimum supply air temperature for cooling [13.00] is greater than the zone cooling mean air temperature (MAT) setpoint [10.00].
** ~~~ ** ..For operative and comfort thermostat controls, the MAT setpoint is computed.
** ~~~ ** ..This error may indicate that the mean radiant temperature or another comfort factor is too warm.
** ~~~ ** Unit availability is nominally ON and Cooling availability is nominally ON.
** ~~~ ** Limit Cooling Capacity Type=NoLimit
There does not seem to be a way to change this constraint on minimum supply air in the OS interface; however, I reduced it to 1C in the idf and it seemed to solve the issue.
