Window Air Conditioner
The window air conditioner is a basic zone equipment library member allowing for the specification of a supply fan and DX cooling coil. This equipment only operates in cooling mode, though the supply fan can be set to run continuously (i.e. regardless of whether or not a cooling load is present).
Note: Standard TRACE library members cannot be modified or deleted but they can be copied and edited.
Nominal Cooling Capacity
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Default: Auto Size box checked
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Typical Range: 1/2 to 1 Ton
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Min Max: 0 to 1,000,000,000,000,000
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Units: % Clg Capacity; W; kW; W/m2; W/ft2; tons; Btuh; MBh; tons/ft2; Btuh/ft2
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This checkbox indicates whether or not the capacity used for the selected cooling coil will be auto sized by the program or referenced from the user defined input.
Supply Fan
Cycling Mode
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Default: Cycling Fan
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Typical Range: N/A
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Min Max: N/A
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Units: N/A
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This input indicates whether or not the supply fan for the window air conditioner is continually operating or if it is allowed to cycle. Two options are available: Cycling Fan or Continuous Fan. If the Cycling Fan option is selected, then the supply fan for the window air conditioner will cycle on and off in operation in step with the compressor operation. If the Continuous Fan option is selected, the supply fan for the window air conditioner will continue to operate whether or not there is a cooling load that needs to be met.
Supply Fan Type
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Default: Constant Volume
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Typical Range: N/A
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Min Max: N/A
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Units: N/A
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This is the type of supply fan that is associated with the library member. Two options are available: Constant or Variable Volume.
Supply Air Fan
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Default: Direct Drive Plenum Fan
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Typical Range: N/A
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Min Max: N/A
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Units: N/A
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This input selection refers to the name of the fan library member that is used as a sub-component of this equipment.
Fan Full Load Energy Rate
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Default: 0.0002 kW/(cfm); Auto Size box is unchecked
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Typical Range: 37 W to 5.5 kW
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Min Max: 0 to 1,000,000,000,000,000 (this field cannot be left blank)
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Units: W; kW; W/(m3/sec); W/(m3/sec)-Pa; W/(cfm); W/(L/sec); W/(L/sec)-Pa; kW/(cfm); kW/(L/sec); kW/(cfm)-in H2O; kW/(L/sec)-Pa; W/(cfm)-in H2O; bhp
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This checkbox indicates whether or not the full load energy rate used for the selected fan will be auto sized by the program or referenced from the user defined input.
Pressure Rise
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Default: 4 inches H2O
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Typical Range: 0.25 to 1.5 inches H2O
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Min Max: 0 to 1,000,000,000,000,000 (this field cannot be left blank)
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Units: inches H2O; lb/ft2; psig; Pa; kPa; mm Hg; mm H2O; bar; in Hg; atm; mm CE; m CE; m H2O; mbar
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The value will be populated by default based on the fan library member selected. You can override this value and the units of measure.
Cooling Coil
Cooling Coil Type
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Default: DX Cooling Equipment
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Typical Range:
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Min Max:
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Units:
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Cooling Coil
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Default: Std Eff. 2-Stg Window A/C Comp, Evap, and Cond
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Typical Range: N/A
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Min Max: N/A
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Units: N/A
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This field allows you to select the cooling coil library member that will be used for this Window Air Conditioner equipment.
Cooling Design Airflow
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Default: Auto Size box checked
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Typical Range: 100 to 1000 cfm
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Min Max: 0 to 1,000,000,000,000,000 (this field cannot be left blank)
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Units: m3/s; cfm; cfm/ft2 (Floor); (m3/s)/m2 (Floor); % Clg Airflow; cfm/ton; (m3/s)/(kW of Cooling Capacity); (m3/hr)/(kW of Cooling Capacity); (m3/s)/(W of Cooling Capacity); m3/hr ; m3/hr/m2 (Floor); L/s; (L/s)/(kW of Cooling Capacity)
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This input refers to the design cooling airflow value associated with the Window Air Conditioner library member.