Cooling process using energy from heat source such as hot water

Relating to alternating current electricity

Alternating current electricity

AC Electricity meter

An AC EVSE port delivers ac electricity to a single EV charging inlet at a time

Frequency of alternating current

Working, operative, effective

Integral of active-power over time

Active power or real power

Equipment to move or control a mechanism

Air Handling Unit

AHU delivery method of conditioned air to the zone

System for air treatment to control its temperature, humidity, cleanliness, and distribution to meet the requirements of a conditioned space

System consisting of one or more fans that remove air from the building

Entity inputs air which flows from another entity

Entity outputs air to other entities

System for moving air to maintain indoor thermal comfort and/or air quality

System that supplies or removes air by natural or mechanical means to or from any space in order to provide outdoor air to the space

Cooling by dissipating heat into the surrounding air

HVAC equipment that conditions and delivers air via one or more fans

Entity with logical grouping of zone air quality points

Air flows from the referent to this entity

Equipment in air distribution systems which terminate at the space

Ability of air handling equip to adjust volume of air flow

Notification of a condition which requires attention

Integral of apparent-power over time

Apparent power is perceived magnitude of power due to the combination of active and reactive power

Area of a shape or floor space

Aquifer Thermal Energy Storage system

The ATES uses closed piping to transport a water/glycol mixture through the ground

Design type of the ATES underground system

The ATES has one or more pairs of a separate warm and cool well

The ATES is as a doublet, but with specific warm and cool wells linked together

The ATES has only one physical well

Similar to a doublet, but water always flows in the same direction from the extraction to the infiltration well

Relating atmospheric pressure

Equipment used to store electric energy

Plant or animal material used as fuel to produce electricity or heat

Heating by the combustion of biomass

Removal from container or pipe

Water expelled from a system to remove mineral build up

Entity inputs blowdown water which flows from another entity

Entity outputs blowdown water to other entities

Blowdown water flows from the referent to this entity

Equipment to generate hot water or steam for heating

Branch selector used for heat recovery in a VRF system

Pipe used to bypass an equipment

An assembly of one or more insulated conductors

Constant air volume terminal unit

Compression via a continuous flow of fluid through an impeller

Substance is cooled using cooling process

Water cooled for use in HVAC and industrial processes

Entity inputs chilled water which flows from another entity

Entity outputs chilled water to other entities

Plant used to generate chilled water for cooling

System that circulates water in its liquid state below ambient temperature for cooling a space or process

Conditions a space using a heat exchanger integrated into the ceiling

AHU supplies air to chilled beam terminal units

Cooling using transfer of heat to chilled water

Chilled water flows from the referent to this entity

Equipment to remove heat from a liquid

Cooling process using energy from heat source such as hot water

Compression via a continuous flow of fluid through an impeller

Piston compressor driven by a crankshaft

Rotary screw compression

Primary mechanism of chiller

Pipe used to circulate fluid through an equipment or system

Electrical circuit and its associated components such as breakers

Point is a command, actuator, AO/BO

Combustible sedimentary rock

Heating by the combustion of coal

Heat exchanger used to heat or cool air

Having low degree of heat

Water supplied to cold taps

Duct carries air for cooling

Device for mechanically increasing the pressure of a gas or refrigerant vapor by reducing its volume

Computed point

See Synthetics chapter

See Synthetics chapter

Liquid phase produced by the condensation of steam or other gas

Entity inputs condensate which flows from another entity

Entity outputs condensate to other entities

Condensate flows from the referent to this entity

Device or related to process of condensation

Water used used to remove heat through condensation

Entity inputs condenser water which flows from another entity

Entity outputs condenser water to other entities

System that circulates water in its liquid state for rejecting heat from a space or process

Working fluid is kept separate from fluid used for heat transfer into the atmosphere

Removal of heat through the process of water condensation

Open or closed loop for condenser working fluid

Uses working fluid itself for evaporation into the atmosphere

Condenser water flows from the referent to this entity

Related to cleaning, heating, cooling, humidifying, dehumidifying, ventilating or circulating  air. 

Duct, pipe, or cable to convey a substance or phenomenon

Delivers a constant volume of air flow

Associated with the control system for an industrial process

Associted with low temperature or cooling processes

Relatively cool water without active chilling

Cooling mode or process

Measurement of a chiller ability to remove heat measured

Coil used to cool air

Equipment without heating

Processed used to cool a substance

Equipment to transfer waste heat into the atmosphere

Computer Room Air Conditioner

Supports current value

Point with support to report a "real-time" current value

Error description when curStatus indicates error condition

Status of point's current value reading

Current value of a point

AC current phase angle

Current phase imbalance in a multiphase AC system

Magnitude of electrical current

Total harmonic current distortion

Damper equipment or control point

Actuator to regulate the flow of air

Relating to direct current electricity

Direct current electricity

DC Electricity meter

A DC EVSE port delivers dc electricity to a single EV charging inlet at a time

The range in a process where no changes to output are made

Differential of fluid between entering and leaving sensors

Rate required for a process

Data related to intended design and operating conditions

Decreases humidity from air using a substance which absorbs moisture

Liquid fuel specifically designed for use in diesel engines

AHU supplies air directly to the zone

Duct for air leaving an equipment

Equipment that releases a specific amount of a substance

Three way valve which inputs one pipe and diverts between two output pipes

Dedicated Outside Air System

For human use

System that circulates potable cold water in its liquid state for purposes other than space cooling and process requirements

System that circulates potable hot water in its liquid state for purposes other than space heating and process requirements

Tap water for drinking, washing, cooking, and flushing of toilets

Entity inputs domestic water which flows from another entity

Entity outputs domestic water to other entities

System that circulates potable water in its liquid state for purposes other than space conditioning and process requirements

Domestic water flows from the referent to this entity

Two ducts

Conduit used to convey air for HVAC

Config point on a vav for duct area measured in ft² or m²

Ductwork configuration

Cold, hot, or neutral deck

Equipment section of ductwork

Cooling using direct expansion of a refrigerant vapor

Heating using direct expansion of a refrigerant vapor

Duct to access fresh outside air only for economizing, not ventilation

Energy reduction mode which augments heating/cooling with outside air

Current control setpoint in effect taking into account other factors

Efficiency point of a chiller measured in "COP" or "kW/ton"

Active power averaged over a rolling interval

Entity inputs electricity which flows from another entity

Electricity meter

Entity outputs electricity to other entities

Physical housing for electrical circuits, fuses, and breakers

System that generates, converts, distributes, and/or stores electricity

Heating by the conversion of electrical energy

Single-phase line measurement of an electric quantity in an AC electric power system

Single-phase electric quantity measured line-to-line in an AC electric power system

Single-phase electric quantity measured line-to-neutral in an AC electric power system

Electricity flows from the referent to this entity

Enclosure used to move people between floors

Secondary on/off point of an equip especially used with a vfd

Pipe conveys fluid into an equipment

Equipment asset

Reference to equip which contains this entity

Moving staircase used to move people between floors

Mechanism used to convert a refrigerant from its liquid to gaseous state

Electric Vehicle Supply Equipment

The electrical cable between an evse-port and an EV charging inlet on a vehicle

Equipment that dispenses electricity to an EV

Equipment that supports the delivery of electricity to charging inlets located on EVs

An EVSE port delivers electricity to a single EV charging inlet at a time

A power converter that has a dc electrical output applied to a dc-evse-port

A system that supplies electricity to EVSE assembly equipment and its auxiliary loads

Physical type of evse-cable

Describes an event during which an evse-port can deliver power to an EV

Status of one or more evse-port reported by an EVSE

Duct used to expel air back outside

Supplied out of a system

Taking a substance out of another substance

Point of an ahu indicating air flow is by-passing the heating/cooling coils

Fan equipment or control point

Motor used with a fan to create air flow

Device with a fan

Fan Coil Unit

Related to an air or fluid filter

Storey of a building

Unitless integer indicating the floor's distance from ground level

Meter to measure flow rate and total volume of fluid

System to change direction of substance flow

Duct for exhausting combustion

A boolean point of an ahu indicating a freezing condition

Petroleum based oil burned for energy

Entity inputs fuel oil which flows from another entity

Entity outputs fuel oil to other entities

Heating by the combustion of fuel oil

Fuel oil flows from the referent to this entity

Ventilation equipment to limit exposure to hazardous fumes

Petroleum derived liquid used as a fuel source

Entity inputs gasoline which flows from another entity

Entity outputs gasoline to other entities

Gasoline flows from the referent to this entity

Related to the surface of the earth

Floor at ground level

Water present under the ground or from a well

Pipe used as central connection or manifold for other piping runs

Associated with a heating process

Equipment to transfer heat between two working fluids

Equipment that employs a vapor compression cycle with a reversing valve to provide heating or cooling

Transfer of heat from one substance to another to reduce energy consumption

Boolean point indicating command state of AHU's heat wheel

Heating mode or process

Coil used to heat air

Equipment without cooling

Processed used to heat a substance

Supports historization of data

Historized point with a history log of timestamp/value pairs

Error description when hisStatus indicates error condition

Indicates the way that history data is collected for a point

Status of point's history collection or synchronization

Indicates values which are a continuous stream of totalization

Having high degree of heat

Hot water used for HVAC heating or supplied to hot taps

Boiler which outputs hot water

Entity inputs hot water which flows from another entity

Entity outputs hot water to other entities

Plant used to generate hot water for heating

System that circulates water in its liquid state for heating a space or process

Duct carries air for heating

Heating using energy of hot water

Hot water flows from the referent to this entity

Adding moisture to air

Equipment which adds moisture to air to increase humidity

Heating, ventilation, and air conditioning

Zone related to conditioning of a space's air temperature and quality

Operational mode for HVAC equipment

Entity with logical grouping of zone HVAC air points

Lacking balance

Received into a system

Operates inside the conditioned space

Permeation of a substance into another substance

Duct with air entering an equipment

Actuator used to isolate an equipment from a pipe or ductwork system

Pipe conveys fluid out of an equipment

Systems associated with illumination in the built environment

System designed to provide lighting

Zone related to lighting system

Entity with logical grouping of lighting points

Line average of single-phase electrical quantity measurements in an AC electric power system

Single-phase line current measured in an AC electric power system

Single-phase energy measured line-to-line in an AC electric power system

Single-phase power factor measured line-to-line in an AC electric power system

Single-phase power measured line-to-line in an AC electric power system

Single-phase voltage measured line-to-line in an AC electric power system

Chiller point to command or measure the chiller's load as a percentage from "0%" to "100%"

Light fixture using electricity to provide illumination

Restore something missed or lost

Water used used to makeup water loss through leaks, evaporation, or blowdown

Entity inputs makeup water which flows from another entity

Entity outputs makeup water to other entities

Makeup water flows from the referent to this entity

Makeup Air Unit

Associated with a machine or its mechanical force, torque, power, or energy

Equipment to meter a substance or phenomenon

Classifies a meter as a main site meter or submeter

Duct where fresh outside air and return air is mixed together

Three way valve which inputs two pipes and outputs a mixture between the two to a single output pipe

Machine learning point

See Synthetics chapter

Training period description, known as the identification period or baseline, utilized during the model training process

List of independent variables, also known as model inputs or features, associated with a machine learning model

See Synthetics chapter

Goodness-of-fit metrics provided in the form of a simple dictionary

Result of model identification, which may appear as a list of model parameters for simpler models or as a reference to a stored model, in the form of a file uri

Dependent variable, also known as the model output or target, associated, with a machine learning model

Machine learning variable representing both model inputs and outputs

Filter used for querying points by tags, providing more flexibility than mlVarPoint, although it is not mandatory

Reference to a point associated with a machine learning variable, known as a machine learning variable point

Reference to a machine learning variable

Equipment that converts electrical energy into mechanical energy

Conveyor to move people across a horizontal or inclined plane

AHU discharge air is split into a duct per zone

Fossil fuel energy source consisting largely of methane and other hydrocarbons

Entity inputs natural gas which flows from another entity

Entity outputs natural gas to other entities

Heating by the combustion of natural gas

Natural gas flows from the referent to this entity

Difference between import and export

Used to indicate electrical current being measured on an electrical neutral conductor when applied to a point entity that has the elec and current tags

Duct carries air which by-passes both heating and cooling coils

Occupied mode of a space

Number of occupants in a space

People who use the built environment

Setpoint or sensor indicating occupancy of a space

operates outside the conditioned space

Duct to access fresh outside air for both ventilation and economizer

Enclosure for electrical and control equipment

Circuit with multiple paths of flow

Auxiliary heating points associated with a vav

Electrical power factor

Displacement power factor, which excludes effects of harmonic distortion

Distortion power factor

Power factor scope

True power factor, which includes effects of harmonic distortion

Phase measurement in a three-phase electrical system

Phase average of single-phase electrical quantity measurements in an AC electric power system

Number of phases for an AC electrical power system or connected equipment

Single-phase current measured line-to-line in an AC electric power system

Single-phase energy measured line-to-neutral in an AC electric power system

Single-phase power factor measured line-to-neutral in an AC electric power system

Single-phase power measured line-to-neutral in an AC electric power system

Single-phase voltage measured line-to-neutral in an AC electric power system

Conduit used to convey a fluid

Type of fluid conveyed by piping

Equipment section of piping

Central plant used to generate a substance for a process

Plant piping loop

Data point such as a sensor or actuator

Classifies the point as a sensor, command, or setpoint

Grouping of children points used by spaces and equipment

Quantity the point senses or controls

See Synthetics chapter

What the point senses or controls

A gateway or opening used to transfer a substance

Converts one electrical waveform to another using power electronic circuitry

VAV damper modulates to control space temp

VAV damper or a control valve that modulates to maintain desired flow setpoint

Primary function of building as US Energy Star key

Pipework which circulates closest to the energy source

Industrial or HVAC process

By-product of natural gas processing and petroleum refining (C₃H₈)

Heating by the combustion of propane

Pump equipment or control point

Motor used with a pump to move fluid

Associated with a cleaning process to remove contaminants

Water expelled from a system to remove contaminants

HVAC equipment that conditions a space without forced air

Heats a space using pipes or cables embedded beneath floor

Heats a space using exposed pipes or coils

Data specified by a manufacturer or rating organization

Relating to reactance

Integral of reactive-power over time

Reactive power or imaginary power

Piston compressor driven by a crankshaft

Fluid used in refrigeration and heat exchange

Entity inputs refrigerant which flows from another entity

Entity outputs refrigerant to other entities

Refrigerant distribution to fulfill all or parts of a refrigeration cycle

Refrigerant flows from the referent to this entity

Command point for reheating process

Duct returning air back to equipment

Envelope covering the top of a building

The roof floor is the topmost level of a building

Enclosed room of a building

Rotary screw compression

Roof Top Unit

Primary on/off point of an equip especially used with a vfd

Pipework which circulates closest to the building or end use

Point is a sensor, input, AI/BI

Circuit with single path of flow

Ratio of the maximum continuous output capacity at which a machine or system may operate without damage to the machine or system’s nominal output capacity

Simulation point

See Synthetics chapter

See Synthetics chapter

See Synthetics chapter

See Synthetics chapter

See Synthetics chapter

See Synthetics chapter

One single duct

Single-phase AC electrical power

Site is a geographic location of the built environment

Main meter for the associated site

Reference to site which contains the entity

Point is a setpoint, soft point, internal control variable, schedule

Space is a three-dimensional volume in the built environment

Reference to space which contains this entity

Stage number of staged equipment operation such as coil or pump

Readiness mode of a space

State of charge (SoC) of an electric battery

Boiler which outputs steam

Entity inputs steam which flows from another entity

Entity outputs steam to other entities

Plant used to generate steam for heating

System that circulates water in its vapor state for heating a space or process

Heating using energy of steam

Steam flows from the referent to this entity

Submeters measure usage of a sub-system or equipment within a site

Reference to parent meter which is immediately upstream of this meter

Below the surface of the earth

Floor below ground level

Device for toggling state or routing data

Synthetic point with computed operational data

See Synthetics chapter

See Synthetics chapter

See Synthetics chapter

Grouping of related equipment dedicated to a single application

Reference to system

Tank used to store a substance for temporary holding

Substance stored by a tank

Pipework which circulates within the building

Total harmonic distortion

Related to energy of heat

Senses and controls temperature of space in HVAC system

Three-phase AC electrical power

Three ducts

Unit Ventilator

Unoccupied mode of a space

Valve equipment or control point

Actuator to regulate the flow of fluid

Delivers a variable volume of air flow

Variable air volume terminal unit

VAV pulls air from outside the primary air flow

VAV pulls air from the primary air flow

How does the VAV pull in air

How does VAV modulate the temp based on duct pressure

AHU supplies air to VAV terminal units

Duct to access fresh outside air only for ventilation, not economizing

Equipment to move humans and materials

Variable-frequency drive

VFD frequency measured in "Hz"

VFD speed measured in "%"

AC voltage phase angle

AC voltage phase imbalance

Magnitude of electrical voltage

Variable refigerant flow

Cooling only VRF system can only cool

Equipment used in VRF systems

Heat pump VRF system can either heat, or cool, but not at the same time

Heat recovery VRF system can operate cooling and heating by each indoor unit independently, at the same time

Indoor unit in a VRF system

Indoor unit fan coil unit in a VRF system

Outdoor unit with one or more compressors in a VRF system

Group of outdoor units in a VRF system

Variable refigerant flow system

Relatively warm in comparison to another substance, without being actively heated

Relatively warm water without active heating

System that supplies or collects potable or non-potable water in any state

Cooling using transfer of heat to water which is not explicitly chilled

Weather station observation point

Logical weather station and its measurement points

Reference to weather station for to use this entity

A well is a source of groundwater and potentially thermal energy

Cabling used to convey electricity or data

Supports writing data

Point with writable output using 16-level priority array

Error description when writeStatus indicates error condition

Current priority level for writeVal as number between 1 and 17

Current status of a writable point output

Current desired value to write to output

Original year of construction as four digit year such as 1980

Related to spaces from a system perspective

Space associated with a specific system

Read historized time series data from a his-point

Write historized time series data from a his-point

Invoke a user action on a target entity

Read or command a writable-point