Term Term Definition Options Unit of Measure
Geothermal Loop

The type of loop field used in a geothermal system (e.g., heat pump)

View None
Heat Pump Backup AFUE

Annual Fuel Utilization Efficiency of backup system for heat pump

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Heat Pump Backup Heating Switchover Temperature

Minimum outside temperature at which the heat pump can operate

View F
Heat Pump Backup System Fuel

Backup fuel used by the heat pump

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Heat Pump Sink Source Type

Sink source of the heat pump

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Heat Recovery Type

Type of heat recovery between two systems.

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Heating Delivery Type

Method for delivering and or distributing heat to the building or Space Function. May be multiple delivery methods for each plant.

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Heating Medium

Medium used to transport heat from a central heating system to individual zones.

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Heating Source

Source of heating

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Heating Stage Capacity Fraction

Average capacity of each heating stage, at ARI rated conditions, expressed as a fraction of total capacity

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Heating Staging

The method of heating staging used by the unit. Select ÒSingle StageÓ for units with single stage (on/off) control. Select ÒMultiple, Discrete StagesÓ for units with multiple discrete stages (low-fire / high-fire). Select ÒModulatingÓ for units which contain modulating burners.

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Heating Type

Source of heat. Heating delivery is recorded in a separate data field. Use of fans or blowers by themselves without heated air or water is not included in this definition of heating.

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Hot Water Distribution Type View None
Humidification Type

Humidification type in air-distribution system.

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HVAC Category

Category of equpment related to heating, ventilation, and air conditioning (HVAC).

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HVAC Component

Type of heating ventilating and air-conditioning equipment component.

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Ignition Type

Ignition mechanism in gas heating equipment. Either pilot light or an intermittent ignition device (IID)

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Input Capacity

The energy consumption of the heating plant at full load.

View MMBtu
Installed Flow Rate

Actual flow rate under normal operating conditions

View cfm
Maximum Fan Power

Fan power at maximum flow rate (full load)

View W
Maximum Flow Rate

Highest flow rate

View cfm
Minimum Flow Rate

Lowest flow rate

View cfm
Minimum Part Load Ratio

The minimum part load ratio at which the equipment is able to operate (0-1).

View None
Motor Application View None
Motor Location Relative To Air Stream

Location of the fan motor relative to the air stream.

View None


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