Zone Equipment are local components within the Zone that provide heating, cooling, ventilation, or a combination of the three. The inputs that control each equipment type are specified in the Zone Equipment Inputs article. The results for each type are listed below.


Fan Coil Unit - Hydronic

  • Supply Airflow [CFM (IP) | L/S (SI)]: The maximum volumetric airflow rate through the fan coil unit. This is also the design, rated airflow rate of the unit.

  • Outdoor Airflow [CFM (IP) | L/S (SI)]: If the fan coil unit uses outdoor air, this field specifies the outdoor air volumetric flow rate.

  • Cooling Capacity [Btu/h (IP) | Watts (SI): The maximum capacity of the hydronic cooling coil.

  • Cooling Fluid Flow [GPM (IP) | L/S (SI)]: The maximum chilled water volumetric flow rate through the unit’s cooling coil.

  • Cooling Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The entering and leaving air conditions of the sized coil.

  • Cooling Entering/Leaving Fluid Temperature [°F (IP) | °C (SI)]: The entering and leaving fluid temperature corresponding to the rated cooling capacity.

  • Heating Capacity [Btu/h (IP) | Watts (SI)]: The maximum capacity of the hydronic heating coil.

  • Heating Fluid Flow [GPM (IP) | L/S (SI)]: The maximum hot water volumetric flow rate through the unit’s heating coil.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air as it moved across the hydronic heating coil.

  • Heating Entering/Leaving Fluid Temperature [°F (IP) | °C (SI)]: The inlet/outlet water temperature corresponding to the rated heating capacity.


Water to Air Heat Pump (WAHP)

  • Cooling Supply Airflow [CFM (IP) | L/S (SI)]: The supply airflow rate leaving the heat pump when the DX cooling coil is operating.

  • Cooling Outdoor Airflow [CFM (IP) | L/S (SI)]: The outdoor airflow rate through the heat pump when the DX cooling coil is operating.

  • Total Cooling Capacity [Btu/h (IP) | Watts (SI)]: The gross cooling capacity of the heat pump.

  • Sensible Cooling Capacity [Btu/h (IP) | Watts (SI)]: The component of the total cooling capacity that is sensible.

  • Cooling Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the cooling coil.

  • Cooling Entering/Leaving Fluid Temperature [°F (IP) | °C (SI)]: The inlet/outlet water temperature corresponding to the rated cooling capacity.

  • Heating Supply Airflow [CFM (IP) | L/S (SI)]: The supply airflow rate through the heat pump when the DX heating coil is operating.

  • Heating Outdoor Airflow [CFM (IP) | L/S (SI)]: The outdoor airflow rate through the heat pump when the DX heating coil is operating.

  • Total Heating Capacity [Btu/h (IP) | Watts (SI)]: The gross heating capacity of the heat pump.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the DX heating coil.

  • Heating Entering/Leaving Fluid Temperature [°F (IP) | °C (SI)]: The inlet/outlet water temperature corresponding to the rated heating capacity.

  • Minimum Supply Airflow [CFM (IP) | L/S (SI)]: The minimum supply airflow required.

  • Minimum Outdoor Airflow [CFM (IP) | L/S (SI)]: The minimum outdoor airflow required.

Backup Electric Heating Coil

  • Total Heating Capacity [Btu/h (IP) | Watts (SI)]: The maximum gross heating capacity of the backup electric coil.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the backup heating coil.


Packaged Terminal Heat Pump (PTHP)

  • Cooling Supply Airflow [CFM (IP) | L/S (SI)]: The supply airflow rate leaving the heat pump when the DX cooling coil is operating.

  • Cooling Outdoor Airflow [CFM (IP) | L/S (SI)]: The outdoor airflow rate through the heat pump when the DX cooling coil is operating.

  • Total Cooling Capacity [Btu/h (IP) | Watts (SI)]: The gross cooling capacity of the heat pump.

  • Sensible Cooling Capacity [Btu/h (IP) | Watts (SI)]: The component of the total cooling capacity that is sensible.

  • Cooling Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the cooling coil.

  • Cooling Entering/Leaving Fluid Temperature [°F (IP) | °C (SI)]: The inlet/outlet fluid temperature corresponding to the rated cooling capacity.

  • Heating Supply Airflow [CFM (IP) | L/S (SI)]: The supply airflow rate through the heat pump when the DX heating coil is operating.

  • Heating Outdoor Airflow [CFM (IP) | L/S (SI)]: The outdoor airflow rate through the heat pump when the DX heating coil is operating.

  • Total Heating Capacity [Btu/h (IP) | Watts (SI)]: The gross heating capacity of the heat pump.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the DX heating coil.

  • Heating Entering/Leaving Fluid Temperature [°F (IP) | °C (SI)]: The inlet/outlet water temperature corresponding to the rated heating capacity.

  • Minimum Supply Airflow [CFM (IP) | L/S (SI)]: The minimum supply airflow required.

  • Minimum Outdoor Airflow [CFM (IP) | L/S (SI)]: The minimum outdoor airflow required.

Backup Electric Heating Coil

  • Total Heating Capacity [Btu/h (IP) | Watts (SI)]: The maximum gross heating capacity of the backup electric coil.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the backup heating coil.


Packaged Terminal Air Conditioner (PTAC)

  • Cooling Supply Airflow [CFM (IP) | L/S (SI)]: The supply airflow rate leaving the heat pump when the DX cooling coil is operating.

  • Cooling Outdoor Airflow [CFM (IP) | L/S (SI)]: The outdoor airflow rate through the heat pump when the DX cooling coil is operating.

  • Total Cooling Capacity [Btu/h (IP) | Watts (SI)]: The gross cooling capacity of the heat pump.

  • Sensible Cooling Capacity [Btu/h (IP) | Watts (SI)]: The component of the total cooling capacity that is sensible.

  • Cooling Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the cooling coil.

  • Heating Supply Airflow [CFM (IP) | L/S (SI)]: The supply airflow rate through the heat pump when the DX heating coil is operating.

  • Heating Outdoor Airflow [CFM (IP) | L/S (SI)]: The outdoor airflow rate through the heat pump when the DX heating coil is operating.

  • Total Heating Capacity [Btu/h (IP) | Watts (SI)]: The gross heating capacity of the heat pump.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet temperature of the air moving across the DX heating coil.

  • Minimum Supply Airflow [CFM (IP) | L/S (SI)]: The minimum supply airflow required.

  • Minimum Outdoor Airflow [CFM (IP) | L/S (SI)]: The minimum outdoor airflow required.


Energy Recovery Ventilator (ERV)

  • Supply Air Flow [CFM (IP) | L/S (SI)]: The supply airflow rate through the ERV unit at standard temperature and pressure.

  • Exhaust Air Flow [CFM (IP) | L/S (SI)]: The exhaust air flow rate through the ERV unit in cubic meters per second at standard temperature and pressure


Radiant Cooling Panel

  • Sensible Capacity [Btu/h (IP) | Watts (SI)]: The cooling panel unit nominal sensible cooling capacity at the rated flow rate of water through the unit.

  • Fluid Flow [GPM (IP) | L/S (SI)]: The maximum chilled water volumetric flow rate.


Baseboard Heater - Hydronic

  • Total Capacity [Btu/h (IP) | Watts (SI)]: The radiant-convective water baseboard rated capacity at the rated water mass flow rate.

  • Fluid Flow [GPM (IP) | L/S (SI)]: The maximum heated water volumetric flow rate.


Baseboard Heater - Electric

  • Total Capacity [Btu/h (IP) | Watts (SI)]: The heating capacity of the electric coil at the rated inlet and outlet air temperatures.


Unit Heater - Electric

  • Total Capacity [Btu/h (IP) | Watts (SI)]: The heating capacity of the electric coil at the rated inlet and outlet air temperatures.

  • Supply Airflow [CFM (IP) | L/S (SI)]: The full load air volumetric flow rate at standard temperature and pressure.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet air temperature corresponding to the rated heating capacity.


Unit Heater - Hydronic

  • Total Capacity [Btu/h (IP) | Watts (SI)]: The heating capacity of the coil at the rated inlet and outlet air and water temperatures.

  • Supply Airflow [CFM (IP) | L/S (SI)]: The full load air volumetric flow rate.

  • Fluid Flow [GPM (IP) | L/S (SI)]: The maximum heated water volumetric flow rate through the coil.

  • Heating Entering/Leaving Air Temperature db/wb [°F (IP) | °C (SI)]: The inlet/outlet air temperature corresponding to the rated heating capacity.

  • Heating Entering/Leaving Fluid Temperature [°F (IP) | °C (SI)]: The inlet/outlet water temperature corresponding to the rated heating capacity.

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