BEDES Dictionary

Version 2.4

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.

All Terms:
BEDES TERMS CSV [version]BEDES TERMS XML [version]
All List Options:
BEDES LIST OPTIONS CSV [version]BEDES LIST OPTIONS XML [version]
 
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HVAC
Term Term Definition Lists Unit of Measure
Pipe Configuration

Number of pipes for distributing steam, refrigerant, or water to individual zones.

View None
Pipe Insulation Thickness

Defines how thick insulation on pipes in a heating, cooling, water heating system is.

in
Pipe Location

% of pipe length in conditioned space (0-1)

None
Refrigerant

The type of refrigerant used in the heat pump

View None
Refrigerant Charge Factor

Used to adjust cooling efficiency for assumed slightly degraded performance if refrigerant charge is not verified through acceptance test procedures

percent
Reheat Source

Energy source used to provide reheat energy at a terminal unit.

View None
Required Ventilation Rate

Minimum ventilation rate required by local code.

cfm
Return Duct Percent Conditioned Space

Percentage of return duct surface area, including the air handler, that is located within conditioned space (0-1).

percent
Sequencing

Sequencing availability of HVAC system

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Size

Maximum air flow produced by the fan.

cfm
Static Pressure

The expected or installed internal static pressure of the system at full supply fan speed including all filters, coils, and accessories.

Pa
Supply Duct Percent Conditioned Space

Percentage of supply duct surface area that is located within conditioned space (0-1).

percent
Supply Fraction Of Duct Leakage

Fraction of total duct leakage that is on the supply side. Remainder is assumed to be on the return side (0-1).

None
System Performance Ratio

Ratio of annual system load to the annual system energy consumption (similar to a whole system COP). A higher value indicates less heating and/or cooling energy use to meet the loads, and therefore represents a more efficient HVAC system. SPR can be used to describe the heating, cooling, and overall HVAC systems.

None
Ventilation Rate

Installed flow rate for mechanical ventilation system.

cfm
Ventilation Type

Type of ventilation, and use of heat recovery

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Water Side Economizer

Presence of water-side economizer to provide free cooling.

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Water Side Economizer Type

Type of waterside economizer providing free cooling.

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Loads
Term Term Definition Lists Unit of Measure
Audio Visual Characteristics

Audio and visual equipment characteristics or features installed standard or post-manufacturing.

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Average Effluent Biological Oxygen Demand

Average Effluent Biological Oxygen Demand (BOD5) is the BOD5 concentration of wastewater after it is treated and is leaving a Wastewater Treatment Plant. The concentration should be an average concentration, estimated over a 12-month period. BOD is the measure of the amount of oxygen required by bacteria for stabilizing material that can be decomposed under aerobic conditions. BOD5 is a commonly used determinant of the organic strength of a waste, recording the oxygen demand over a five-day period.

mg/L
Average Influent Biological Oxygen Demand

Average Influent Biological Oxygen Demand (BOD5) is the BOD5 concentration of wastewater when it is entering a Wastewater Treatment Plant to be treated. The concentration should be an average concentration, estimated over a 12-month period. BOD is the measure of the amount of oxygen required by bacteria for stabilizing material that can be decomposed under aerobic conditions. BOD5 is a commonly used determinant of the organic strength of a waste, recording the oxygen demand over a five day period.

mg/L
Ballast Type

A ballast is a piece of equipment required to control the starting and operating voltages of electrical gas discharge lights.

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Battery Charger Type

A device intended to replenish the charge in a rechargeable battery. A battery charger connects to the mains at the power input and connects to the battery at the output. The charger may be comprised of multiple components, in more than one enclosure, and may be fully or partially contained in the Battery Operated End-use Product.

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Battery Device Type

A type of battery device.

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Cabinet Configuration

Configuration can include refrigeration cases and walk-ins, not central refrigeration systems.

View None

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