AIRLOOPHVAC:UNITARYHEATONLY

Unitary system, heating-only with constant volume supply fan (continuous or cycling) and heating coil (gas, electric, hot water, or steam). Identical to AirLoopHVAC:Unitary:Furnace:HeatOnly.

Name

Type: alphanumeric

Availability Schedule Name

Type: list of objects (SCHEDULE:COMPACT, SCHEDULE:FILE, SCHEDULE:CONSTANT, EXTERNALINTERFACE:SCHEDULE, EXTERNALINTERFACE:FUNCTIONALMOCKUPUNITIMPORT:TO:SCHEDULE or SCHEDULE:YEAR)
Availability schedule name for this system. Schedule value > 0 means the system is available. If this field is blank, the system is always available.

Unitary System Air Inlet Node Name

Type: node

Unitary System Air Outlet Node Name

Type: node

Supply Air Fan Operating Mode Schedule Name

Type: list of objects (SCHEDULE:COMPACT, SCHEDULE:FILE, SCHEDULE:CONSTANT, EXTERNALINTERFACE:SCHEDULE, EXTERNALINTERFACE:FUNCTIONALMOCKUPUNITIMPORT:TO:SCHEDULE or SCHEDULE:YEAR)
A fan operating mode schedule value of 0 indicates cycling fan mode (supply air fan cycles on and off in tandem with the heating coil). Any other schedule value indicates continuous fan mode (supply air fan operates continuously regardless of heating coil operation). Leaving this schedule name blank will default to cycling fan mode for the entire simulation period.

Maximum Supply Air Temperature

Type: real number
Unit: C
Default: 80.0

Heating Supply Air Flow Rate

Type: real number
This value should be > 0 and <= than the fan air flow rate.
Unit: m3/s

Controlling Zone or Thermostat Location

Type: list of objects ( or ZONE)

Supply Fan Object Type

Type: choice (Fan:OnOff or Fan:ConstantVolume)
Fan:ConstantVolume only works with continuous fan operating mode (i.e. fan operating mode schedule values are greater than 0).

Supply Fan Name

Type: list of objects (FAN:ONOFF or FAN:CONSTANTVOLUME)

Fan Placement

Type: choice (BlowThrough or DrawThrough)
Default: BlowThrough

Heating Coil Object Type

Type: choice (Coil:Heating:Fuel, Coil:Heating:Electric, Coil:Heating:Water or Coil:Heating:Steam)
Works with gas, electric, hot water and steam heating coils

Heating Coil Name

Type: list of objects (COIL:HEATING:STEAM, COIL:HEATING:ELECTRIC, COIL:HEATING:FUEL or COIL:HEATING:WATER)