Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Revision history [back]

The figure does show that the cooling thermostat set point is maintained, albeit for only a few hours. This is indicative of insufficient cooling capacity to meet the load. Check this report variables to be sure the system has enough capacity. If the system coil cannot meet the load, the RTF will equal 1 when the zone thermostat temperature set point is exceeded.

Output:Variable,*,Cooling Coil Runtime Fraction,hourly; !- HVAC Average []

The figure does show that the cooling thermostat set point is maintained, albeit for only a few hours. This is indicative of insufficient cooling capacity to meet the load. Check this report variables variable to be sure the system has enough capacity. If the system coil cannot meet the load, the RTF will equal 1 when the zone thermostat temperature set point is exceeded.

Output:Variable,*,Cooling Coil Runtime Fraction,hourly; !- HVAC Average []