BEDES Dictionary

Version 2.3

You can explore the BEDES dictionary in several ways: use the search box to search for a particular term; filter the list of terms by category using the checkboxes below; click on each term for more details. You can also download all the terms and list options in CSV or XML format using the buttons below.

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Term Term Definition Lists Unit of Measure
Cooling Stage Capacity

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

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.

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Dehumidification Type

Dehumidification type in air-distribution system.

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Design Static Pressure

The design static pressure for the fan

Draft Type

Draft mechanism used for drawing air through a boiler, furnace, or water heater.

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Duct Configuration

Configuration of ducts.

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Duct Insulation R Value

R-value of duct insulation.

Duct Leakage Test Method

Method used to estimate duct leakage

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Duct Pressure Test Leakage Percentage

Duct leakage found from pressure test. Reported as a percentage. [%]

Duct Pressure Test Leakage Rate

Duct leakage found from pressure test. Reported in cubic feet per minute.

Duct Sealing

Condition of duct sealing.

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Duct Surface Area

Total surface area of ducts associated with this air distribution system.

Duct Type

Type of duct material.

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Equipment Redundancy

Redundancy availability or formal redundancy level for specified equipment

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Evaporative Cooling Type

Defines the type of evaporative cooler operation

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Evaporative Wet Bulb Effectiveness

The ratio of the difference between inlet and outlet air temperature to the difference between inlet air temperature and its wet bulb temperature

Evaporatively Cooled Condenser

Availability of evaporative cooling to enhance heat rejection from the condenser coils.

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Evaporatively Cooled Condenser

Availability of evaporative cooling to enhance heat rejection from the condenser coils.

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Fan Application

Application of fan (supply, return, or exhaust)

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Fan Placement

Placement of fan relative to the air stream.

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Fan Power Minimum Ratio

The minimum power draw of the fan, expressed as a ratio of the full load fan power.

Fan Type

Method of generating air flow

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Flow Control Type

Type of air flow control.

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Geothermal Loop

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

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Heat Pump Backup AFUE

Annual Fuel Utilization Efficiency of backup system for heat pump