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

Revision history [back]

The VRF Heat Pump Total Cooling Rate = sum of Cooling Coil Total Cooling Rate plus piping losses.

The other reports you mention, fan heat gain to air and heat exchanger total cooling rate affect the zone load but are incorporated into the Cooling Coil Total Cooling Rate report because the coil will need to meet any load added to the zone. The final report, Zone VRF Air Terminal Total Cooling Rate simple reports what the VRF terminal unit is adding to the zone, whether or not the coils are operating.

The VRF Heat Pump Total Cooling Rate = sum of Cooling Coil Total Cooling Rate plus piping losses.

The other reports you mention, fan heat gain to air and heat exchanger total cooling rate affect the zone load but are incorporated into the Cooling Coil Total Cooling Rate report because the coil will need to meet any load added to the zone. The final report, Zone VRF Air Terminal Total Cooling Rate simple simply reports what the VRF terminal unit is adding to the zone, whether or not the coils are operating.

Since the Zone VRF Air Terminal Total Cooling Rate represents the cooling provided to the zone, this report variable should match the Zone Predicted Sensible Load to Cooling Setpoint Heat Transfer Rate variable that shows what the zone load is. If they match, the zone will meet the zone thermostat set point temperature.