lib

lib:phIoT

Project Haystack definitions for Internet of Things

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tags

absorption

Cooling process using energy from heat source such as hot water

ac

Relating to alternating current electricity

ac-elec

Alternating current electricity

ac-elec-meter

AC Electricity meter

ac-freq

Frequency of alternating current

active

Working, operative, effective

active-energy

Integral of active-power over time

active-power

Active power or real power

actuator

Equipment to move or control a mechanism

ahu

Air Handling Unit

ahuZoneDelivery

AHU delivery method of conditioned air to the zone

air-conditioning-system

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

air-exhaust-system

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

air-input

Entity inputs air which flows from another entity

air-output

Entity outputs air to other entities

air-system

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

air-ventilation-system

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

airCooling

Cooling by dissipating heat into the surrounding air

airHandlingEquip

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

airQualityZonePoints

Entity with logical grouping of zone air quality points

airRef

Air flows from the referent to this entity

airTerminalUnit

Equipment in air distribution systems which terminate at the space

airVolumeAdjustability

Ability of air handling equip to adjust volume of air flow

alarm

Notification of a condition which requires attention

apparent-energy

Integral of apparent-power over time

apparent-power

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

area

Area of a shape or floor space

assembly

A collection of manufactured parts or subassemblies

ates

Aquifer Thermal Energy Storage system

atesClosedLoop

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

atesDesign

Design type of the ATES underground system

atesDoublet

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

atesDoubletPaired

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

atesMono

The ATES has only one physical well

atesUnidirectional

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

barometric

Relating atmospheric pressure

battery

Equipment used to store electric energy

biomass

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

biomassHeating

Heating by the combustion of biomass

blowdown

Removal from container or pipe

blowdown-water

Water expelled from a system to remove mineral build up

blowdown-water-input

Entity inputs blowdown water which flows from another entity

blowdown-water-output

Entity outputs blowdown water to other entities

blowdownWaterRef

Blowdown water flows from the referent to this entity

boiler

Equipment to generate hot water or steam for heating

branchSelector

Branch selector used for heat recovery in a VRF system

bypass

Pipe used to bypass an equipment

cable

An assembly of one or more insulated conductors

cav

Constant air volume terminal unit

centrifugal

Compression via a continuous flow of fluid through an impeller

chilled

Substance is cooled using cooling process

chilled-water

Water cooled for use in HVAC and industrial processes

chilled-water-input

Entity inputs chilled water which flows from another entity

chilled-water-output

Entity outputs chilled water to other entities

chilled-water-plant

Plant used to generate chilled water for cooling

chilled-water-system

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

chilledBeam

Conditions a space using a heat exchanger integrated into the ceiling

chilledBeamZone

AHU supplies air to chilled beam terminal units

chilledWaterCooling

Cooling using transfer of heat to chilled water

chilledWaterRef

Chilled water flows from the referent to this entity

chiller

Equipment to remove heat from a liquid

chiller-absorption

Cooling process using energy from heat source such as hot water

chiller-centrifugal

Compression via a continuous flow of fluid through an impeller

chiller-reciprocal

Piston compressor driven by a crankshaft

chiller-rotaryScrew

Rotary screw compression

chillerMechanism

Primary mechanism of chiller

circ

Pipe used to circulate fluid through an equipment or system

circuit

Electrical circuit and its associated components such as breakers

cmd

Point is a command, actuator, AO/BO

coal

Combustible sedimentary rock

coalHeating

Heating by the combustion of coal

coil

Heat exchanger used to heat or cool air

cold

Having low degree of heat

cold-water

Water supplied to cold taps

coldDeck

Duct carries air for cooling

compressor

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

condensate

Liquid phase produced by the condensation of steam or other gas

condensate-input

Entity inputs condensate which flows from another entity

condensate-output

Entity outputs condensate to other entities

condensateRef

Condensate flows from the referent to this entity

condenser

Device or related to process of condensation

condenser-water

Water used used to remove heat through condensation

condenser-water-input

Entity inputs condenser water which flows from another entity

condenser-water-output

Entity outputs condenser water to other entities

condenser-water-system

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

condenserClosedLoop

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

condenserCooling

Removal of heat through the process of water condensation

condenserLoop

Open or closed loop for condenser working fluid

condenserOpenLoop

Uses working fluid itself for evaporation into the atmosphere

condenserWaterRef

Condenser water flows from the referent to this entity

conditioning

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

conduit

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

constantAirVolume

Delivers a constant volume of air flow

controls

Associated with the control system for an industrial process

cool

Associted with low temperature or cooling processes

cool-water

Relatively cool water without active chilling

cooling

Cooling mode or process

coolingCapacity

Measurement of a chiller ability to remove heat measured

coolingCoil

Coil used to cool air

coolingOnly

Equipment without heating

coolingProcess

Processed used to cool a substance

coolingTower

Equipment to transfer waste heat into the atmosphere

crac

Computer Room Air Conditioner

cur

Supports current value

cur-point

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

curErr

Error description when curStatus indicates error condition

curStatus

Status of point's current value reading

curVal

Current value of a point

current-angle

AC current phase angle

current-imbalance

Current phase imbalance in a multiphase AC system

current-magnitude

Magnitude of electrical current

current-thd

Total harmonic current distortion

damper

Damper equipment or control point

damper-actuator

Actuator to regulate the flow of air

dc

Relating to direct current electricity

dc-elec

Direct current electricity

dc-elec-meter

DC Electricity meter

deadband

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

delta

Differential of fluid between entering and leaving sensors

demand

Rate required for a process

design

Data related to intended design and operating conditions

dessicantDehumidifier

Decreases humidity from air using a substance which absorbs moisture

diesel

Liquid fuel specifically designed for use in diesel engines

directZone

AHU supplies air directly to the zone

discharge

Duct for air leaving an equipment

diverting

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

doas

Dedicated Outside Air System

domestic

For human use

domestic-cold-water-system

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

domestic-hot-water-system

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

domestic-water

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

domestic-water-input

Entity inputs domestic water which flows from another entity

domestic-water-output

Entity outputs domestic water to other entities

domestic-water-system

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

domesticWaterRef

Domestic water flows from the referent to this entity

dualDuct

Two ducts

duct

Conduit used to convey air for HVAC

ductArea

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

ductConfig

Ductwork configuration

ductDeck

Cold, hot, or neutral deck

ductSection

Equipment section of ductwork

dxCooling

Cooling using direct expansion of a refrigerant vapor

dxHeating

Heating using direct expansion of a refrigerant vapor

economizer

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

economizing

Energy reduction mode which augments heating/cooling with outside air

effective

Current control setpoint in effect taking into account other factors

efficiency

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

elec-demand

Active power averaged over a rolling interval

elec-input

Entity inputs electricity which flows from another entity

elec-meter

Electricity meter

elec-output

Entity outputs electricity to other entities

elec-panel

Physical housing for electrical circuits, fuses, and breakers

elec-system

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

elecHeating

Heating by the conversion of electrical energy

elecLine

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

elecLineToLine

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

elecLineToNeutral

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

elecRef

Electricity flows from the referent to this entity

elevator

Enclosure used to move people between floors

enable

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

entering

Pipe conveys fluid into an equipment

equip

Equipment asset

equipRef

Reference to equip which contains this entity

escalator

Moving staircase used to move people between floors

evaporator

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

evse

Electric Vehicle Supply Equipment

evse-assembly

Equipment that delivers electricity via EVSE ports to charging inlets located on EVs

evse-cable

Models the electrical connection between an evse-port and an EV charging inlet

evse-equip

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

evse-port

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

evse-system

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

exhaust

Duct used to expel air back outside

export

Supplied out of a system

extraction

Taking a substance out of another substance

faceBypass

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

fan

Fan equipment or control point

fan-motor

Motor used with a fan to create air flow

fanPowered

Device with a fan

fcu

Fan Coil Unit

filter

Related to an air or fluid filter

floor

Storey of a building

floorNum

Unitless integer indicating the floor's distance from ground level

flow-meter

Meter to measure flow rate and total volume of fluid

flowInverter

System to change direction of substance flow

flue

Duct for exhausting combustion

freezeStat

A boolean point of an ahu indicating a freezing condition

fuelOil

Petroleum based oil burned for energy

fuelOil-input

Entity inputs fuel oil which flows from another entity

fuelOil-output

Entity outputs fuel oil to other entities

fuelOilHeating

Heating by the combustion of fuel oil

fuelOilRef

Fuel oil flows from the referent to this entity

fumeHood

Ventilation equipment to limit exposure to hazardous fumes

gasoline

Petroleum derived liquid used as a fuel source

gasoline-input

Entity inputs gasoline which flows from another entity

gasoline-output

Entity outputs gasoline to other entities

gasolineRef

Gasoline flows from the referent to this entity

ground

Related to the surface of the earth

ground-floor

Floor at ground level

ground-water

Water present under the ground or from a well

header

Pipe used as central connection or manifold for other piping runs

heat

Associated with a heating process

heatExchanger

Equipment to transfer heat between two working fluids

heatPump

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

heatRecovery

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

heatWheel

Boolean point indicating command state of AHU's heat wheel

heating

Heating mode or process

heatingCoil

Coil used to heat air

heatingOnly

Equipment without cooling

heatingProcess

Processed used to heat a substance

his

Supports historization of data

his-point

Historized point with a history log of timestamp/value pairs

hisErr

Error description when hisStatus indicates error condition

hisMode

Indicates the way that history data is collected for a point

hisStatus

Status of point's history collection or synchronization

hisTotalized

Indicates values which are a continuous stream of totalization

hot

Having high degree of heat

hot-water

Hot water used for HVAC heating or supplied to hot taps

hot-water-boiler

Boiler which outputs hot water

hot-water-input

Entity inputs hot water which flows from another entity

hot-water-output

Entity outputs hot water to other entities

hot-water-plant

Plant used to generate hot water for heating

hot-water-system

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

hotDeck

Duct carries air for heating

hotWaterHeating

Heating using energy of hot water

hotWaterRef

Hot water flows from the referent to this entity

humidifier

Adding moisture to air

humidifier-equip

Equipment which adds moisture to air to increase humidity

hvac

Heating, ventilation, and air conditioning

hvac-zone-space

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

hvacMode

Operational mode for HVAC equipment

hvacZonePoints

Entity with logical grouping of zone HVAC air points

imbalance

Lacking balance

import

Received into a system

indoorUnit

Operates inside the conditioned space

infiltration

Permeation of a substance into another substance

inlet

Duct with air entering an equipment

isolation

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

leaving

Pipe conveys fluid out of an equipment

lighting

Systems associated with illumination in the built environment

lighting-system

System designed to provide lighting

lighting-zone-space

Zone related to lighting system

lightingZonePoints

Entity with logical grouping of lighting points

lineAvg

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

lineCurrent

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

lineEnergy

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

linePf

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

linePower

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

lineVolt

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

load

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

luminaire

Light fixture using electricity to provide illumination

makeup

Restore something missed or lost

makeup-water

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

makeup-water-input

Entity inputs makeup water which flows from another entity

makeup-water-output

Entity outputs makeup water to other entities

makeupWaterRef

Makeup water flows from the referent to this entity

mau

Makeup Air Unit

mech

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

meter

Equipment to meter a substance or phenomenon

meterScope

Classifies a meter as a main site meter or submeter

mixed

Duct where fresh outside air and return air is mixed together

mixing

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

motor

Equipment that converts electrical energy into mechanical energy

movingWalkway

Conveyor to move people across a horizontal or inclined plane

multiZone

AHU discharge air is split into a duct per zone

naturalGas

Fossil fuel energy source consisting largely of methane and other hydrocarbons

naturalGas-input

Entity inputs natural gas which flows from another entity

naturalGas-output

Entity outputs natural gas to other entities

naturalGasHeating

Heating by the combustion of natural gas

naturalGasRef

Natural gas flows from the referent to this entity

net

Difference between import and export

neutral

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

neutralDeck

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

occ

Occupied mode of a space

occupancy

Number of occupants in a space

occupants

People who use the built environment

occupied

Setpoint or sensor indicating occupancy of a space

outdoorUnit

operates outside the conditioned space

outside

Duct to access fresh outside air for both ventilation and economizer

panel

Enclosure for electrical and control equipment

parallel

Circuit with multiple paths of flow

perimeterHeat

Auxiliary heating points associated with a vav

pf

Electrical power factor

pfDisplacement

Displacement power factor, which excludes effects of harmonic distortion

pfDistortion

Distortion power factor

pfScope

Power factor scope

pfTrue

True power factor, which includes effects of harmonic distortion

phase

Phase measurement in a three-phase electrical system

phaseAvg

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

phaseCount

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

phaseCurrent

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

phaseEnergy

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

phasePf

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

phasePower

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

phaseVolt

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

pipe

Conduit used to convey a fluid

pipeFluid

Type of fluid conveyed by piping

pipeSection

Equipment section of piping

plant

Central plant used to generate a substance for a process

plantLoop

Plant piping loop

point

Data point such as a sensor or actuator

pointFunction

Classifies the point as a sensor, command, or setpoint

pointGroup

Grouping of children points used by spaces and equipment

pointQuantity

Quantity the point senses or controls

pointSubject

What the point senses or controls

port

A gateway or opening used to transfer a substance

pressureDependent

VAV damper modulates to control space temp

pressureIndependent

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

primaryFunction

Primary function of building as US Energy Star key

primaryLoop

Pipework which circulates closest to the energy source

process

Industrial or HVAC process

propane

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

propaneHeating

Heating by the combustion of propane

pump

Pump equipment or control point

pump-motor

Motor used with a pump to move fluid

purge

Associated with a cleaning process to remove contaminants

purge-water

Water expelled from a system to remove contaminants

radiantEquip

HVAC equipment that conditions a space without forced air

radiantFloor

Heats a space using pipes or cables embedded beneath floor

radiator

Heats a space using exposed pipes or coils

rated

Data specified by a manufacturer or rating organization

reactive

Relating to reactance

reactive-energy

Integral of reactive-power over time

reactive-power

Reactive power or imaginary power

reciprocal

Piston compressor driven by a crankshaft

refrig

Fluid used in refrigeration and heat exchange

refrig-input

Entity inputs refrigerant which flows from another entity

refrig-output

Entity outputs refrigerant to other entities

refrig-system

Refrigerant distribution to fulfill all or parts of a refrigeration cycle

refrigRef

Refrigerant flows from the referent to this entity

reheat

Command point for reheating process

return

Duct returning air back to equipment

roof

Envelope covering the top of a building

roof-floor

The roof floor is the topmost level of a building

room

Enclosed room of a building

rotaryScrew

Rotary screw compression

rtu

Roof Top Unit

run

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

secondaryLoop

Pipework which circulates closest to the building or end use

sensor

Point is a sensor, input, AI/BI

series

Circuit with single path of flow

serviceFactor

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

singleDuct

One single duct

singlePhase

Single-phase AC electrical power

site

Site is a geographic location of the built environment

siteMeter

Main meter for the associated site

siteRef

Reference to site which contains the entity

sp

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

space

Space is a three-dimensional volume in the built environment

spaceRef

Reference to space which contains this entity

stage

Stage number of staged equipment operation such as coil or pump

standby

Readiness mode of a space

steam-boiler

Boiler which outputs steam

steam-input

Entity inputs steam which flows from another entity

steam-output

Entity outputs steam to other entities

steam-plant

Plant used to generate steam for heating

steam-system

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

steamHeating

Heating using energy of steam

steamRef

Steam flows from the referent to this entity

submeter

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

submeterOf

Reference to parent meter which is immediately upstream of this meter

subterranean

Below the surface of the earth

subterranean-floor

Floor below ground level

switch

Device for toggling state or routing data

system

Grouping of related equipment dedicated to a single application

systemRef

Reference to system

tank

Tank used to store a substance for temporary holding

tankSubstance

Substance stored by a tank

tertiaryLoop

Pipework which circulates within the building

thd

Total harmonic distortion

thermal

Related to energy of heat

thermostat

Senses and controls temperature of space in HVAC system

threePhase

Three-phase AC electrical power

tripleDuct

Three ducts

unitVent

Unit Ventilator

unocc

Unoccupied mode of a space

valve

Valve equipment or control point

valve-actuator

Actuator to regulate the flow of fluid

variableAirVolume

Delivers a variable volume of air flow

vav

Variable air volume terminal unit

vav-parallel

VAV pulls air from outside the primary air flow

vav-series

VAV pulls air from the primary air flow

vavAirCircuit

How does the VAV pull in air

vavModulation

How does VAV modulate the temp based on duct pressure

vavZone

AHU supplies air to VAV terminal units

ventilation

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

verticalTransport

Equipment to move humans and materials

vfd

Variable-frequency drive

vfd-freq

VFD frequency measured in "Hz"

vfd-speed

VFD speed measured in "%"

volt-angle

AC voltage phase angle

volt-imbalance

AC voltage phase imbalance

volt-magnitude

Magnitude of electrical voltage

vrf

Variable refigerant flow

vrf-coolingOnly-system

Cooling only VRF system can only cool

vrf-equip

Equipment used in VRF systems

vrf-heatPump-system

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

vrf-heatRecovery-system

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

vrf-indoorUnit

Indoor unit in a VRF system

vrf-indoorUnit-fcu

Indoor unit fan coil unit in a VRF system

vrf-outdoorUnit

Outdoor unit with one or more compressors in a VRF system

vrf-refrig-plant

Group of outdoor units in a VRF system

vrf-system

Variable refigerant flow system

warm

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

warm-water

Relatively warm water without active heating

water-system

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

waterCooling

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

weather-point

Weather station observation point

weatherStation

Logical weather station and its measurement points

weatherStationRef

Reference to weather station for to use this entity

well

A well is a source of groundwater and potentially thermal energy

wire

Cabling used to convey electricity or data

writable

Supports writing data

writable-point

Point with writable output using 16-level priority array

writeErr

Error description when writeStatus indicates error condition

writeLevel

Current priority level for writeVal as number between 1 and 17

writeStatus

Current status of a writable point output

writeVal

Current desired value to write to output

yearBuilt

Original year of construction as four digit year such as 1980

zone

Related to spaces from a system perspective

zone-space

Space associated with a specific system

ops

hisRead

Read historized time series data from a his-point

hisWrite

Write historized time series data from a his-point

invokeAction

Invoke a user action on a target entity

pointWrite

Read or command a writable-point