HVAC
Term | Term Definition | Options | Unit of Measure |
---|---|---|---|
Absorption Heat Source |
Source of heating energy for regeneration |
View | None |
Absorption Stages |
Number of stages in regeneration process |
View | None |
Active Dehumidification |
Availability of an active dehumidification system (in addition to the dehumidification that takes place during normal DX cooling operation). |
View | None |
Air Distribution Type |
Basic configuration of air-distribution equipment. |
View | None |
Air Side Economizer |
Presence of air-side economizer to provide free cooling. |
View | None |
Air Side Economizer Type |
Type of air economizer system associated with a cooling system. |
View | None |
Belt Type |
Type of belt drive in fan unit |
View | None |
Boiler Blowdown Rate |
A blowdown of the boiler is a routine operation necessary due to the increased concentration of Total Dissolved Solids - TDS - in the boiler during the steam production. The blowdown rate of a boiler depends on: steam consumption (steam used in the process and not returned as condensate to the boiler), concentration of impurities in the feed water, maximum allowable TDS in the boiler. |
View | kg/hr |
Boiler Insulation R Value |
Insulation R-Value of hot water storage tank. |
View | hr-ft2-F/Btu |
Boiler Insulation Thickness |
Insulation thickness of hot water storage tank. [inches] |
View | in |
Boiler Percent Condensate Return |
The percentage of condensed steam that is returned to the boiler. |
View | percent |
Burner Turndown Ratio |
If applicable, the turndown ratio for the burner (full input/minimum input). |
View | None |
Burner Type |
Type of burner on boiler or furnace, if applicable. |
View | None |
Cell Count |
The number of cells in the cooling tower. Each cell has its own fan, water flow allowing for responding to lower load conditions |
View | count |
Chiller Compressor Driver |
Equipment driving the compressor used in a chiller |
View | None |
Chiller Compressor Type |
Type of compressor in the chiller. |
View | None |
Compressor Staging |
The compressor staging for the unit. Select "Single Stage" for units with single stage (on/off) control. Select "Multiple, Discrete Stages" for units with multiple compressors, discrete unloading stages, or compressors with stepped speed motors that are controlled to operate at discrete stages. Select "Variable" for compressors that operate at variable speeds or with modulating unloading. |
View | None |
Condenser Fan Speed Operation |
The condenser fan control option used by the unit. If the unit has several constant-speed condenser fans that stage on in conjunction with multiple compressors, this should be set to ÒStepped Speed.Ó |
View | None |
Condenser Type |
Type of condenser used for DX cooling plant. |
View | None |
Condensing Operation |
Capability of a boiler or furnace of condensing the water vapor in the exhaust flue gas to obtain a higher efficiency. |
View | None |
Cooling Delivery Type |
Method of delivering cooling to the zone. |
View | None |
Cooling Medium |
Medium used to transport cooling energy from a central cooling system to individual zones. |
View | None |
Cooling Stage Capacity |
Average capacity of each cooling stage, at ARI rated conditions, expressed as a fraction of total capacity |
View | None |
Cooling Type |
Source of cooling. Cooling delivery is recorded in a separate data field. Use of fans or blowers by themselves without chilled air or water is not included in this definition of cooling. Stand-alone dehumidifiers are also not included. |
View | None |
Dehumidification Type |
Dehumidification type in air-distribution system. |
View | None |
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