lib

lib:phIoT

Project Haystack definitions for Internet of Things

meta

terms

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

ahuZoneDeliveryType

AHU delivery method of conditioned air to the zone

air-input

Entity inputs air which flows from another entity

air-output

Entity outputs air to other entities

airCooling

Cooling by dissipating heat into the surrounding air

airHandlingEquip

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

airRef

Air flows from the 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

airVolumeAdjustabilityType

Ability of air handling equip to adjust volume of air flow

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

barometric

Relating atmospheric pressure

battery

Equipment used to store electric energy

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 the referent to this entity

boiler

Equipment to generate hot water or steam for heating

bypass

Pipe used to bypass an equipment

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 used for HVAC cooling

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

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 the referent to this entity

chiller

Equipment to remove heat from a liquid

chiller-absorption
chiller-centrifugal
chiller-reciprocal
chiller-rotaryScrew
chillerMechanism

Primary mechanism of chiller

chillerMechanismType

Primary mechanism of chiller

circ

Pipe used to circulate fluid through an equipment or system

cmd

Point is a command, actuator, AO/BO

coil

Heat exchanger used to heat or cool air

coldDeck

Duct carries air for cooling

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 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

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

condenserLoopType

Open or closed loop for condenser working fluid

condenserOpenLoop

Uses working fluid itself for evaporation into the atmosphere

condenserWaterRef

Condenser water flows from the the referent to this entity

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

conveys

Equipment conveys a substance or phenomenon

cool

Point used to command equipment cooling

cooling

Cooling mode or process

coolingCapacity

Measurement of a chiller ability to remove heat measured

coolingCoil

Coil used to cool air

coolingOnly

Device without heating

coolingOnly-vav

Cooling only VAV without fan or reheat

coolingProcess

Processed used to cool a substance

coolingProcessType

Processed used to cool a substance

coolingTower

Equipment to transfer waste heat into the atmosphere

cools

Equipment removes heat from a substance

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

dehumidifies

Equipment removes moisture from air to decrease humidity

delta

Differential of fluid between entering and leaving sensors

demand

Rate required for a process

dessicantDehumidifier

Decreases humidity from air using a substance which absorbs moisture

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-water

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

domestic-water-input

Entity inputs domestic water which flows from another entity

domestic-water-output

Entity outputs domestic water to other entities

domesticWaterRef

Domestic water flows from the the referent to this entity

drive

Related to the drive control of a motor

drive-freq

Motor frequency measured in "Hz"

drive-speed

Motor speed measured in "%"

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

ductConfigType

Ductwork configuration

ductDeck

Cold, hot, or neutral deck

ductDeckType

Cold, hot, or neutral deck

ductSection

Equipment section of ductwork

ductSectionType

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

elecHeating

Heating by the conversion of electrical energy

elecRef

Electricity flows from the 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

equipFunction

Models one of the primary functions of an equipment type

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

exhaust

Duct used to expel air back outside

export

Supplied out of a system

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

fanPowered-vav

VAV contains a fan with reheat

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

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 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 the referent to this entity

ground

Related to the surface of the earth

ground-floor

Floor at ground level

header

Pipe used as central connection or manifold for other piping runs

heat

Point used to command equipment heating

heatExchanger

Equipment to transfer heat between two working fluids

heatPump

Heat pump

heatWheel

Boolean point indicating command state of AHU's heat wheel

heating

Heating mode or process

heatingCoil

Coil used to heat air

heatingProcess

Processed used to heat a substance

heatingProcessType

Processed used to heat a substance

heats

Equipment heats 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 supply 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

hotDeck

Duct carries air for heating

hotWaterHeating

Heating using energy of hot water

hotWaterRef

Hot water flows from the the referent to this entity

humidifier

Adding moisture to air

humidifier-equip

Equipment which adds moisture to air to increase humidity

humidifies

Equipment 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

hvacZonePoints

Entity with logical grouping of zone HVAC air points

imbalance

Lacking balance

import

Received into a system

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-zone-space

Zone related to lighting system

lightingZonePoints

Entity with logical grouping lighting points

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 soemthing 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 the referent to this entity

mau

Makeup Air Unit

meter

Equipment to meter a substance or phenomenon

meterScope

Classifies a meter as a main site meter or submeter

meterScopeType

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

moves

Equipment moves a substance

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 the referent to this entity

net

Difference between import and export

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 ennvironment

occupied

Setpoint or sensor indicating occupancy of a 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

phase

Phase measurement in a three-phase electrical system

pipe

Conduit used to convey a fluid

pipeSection

Equipment section of piping

pipeSectionType

Equipment section of piping

plant

Central plant used to generate a substance for a process

plantLoop

Plant piping loop

plantLoopType

Plant piping loop

plantPrimaryLoop

Pipework which circulates within the central plant

plantSecondaryLoop

Pipework which circulates between the central plant and building

plantTertiaryLoop

Pipework which circulates within the building

point

Data point such as a sensor or actuator

pointFunction

Classifies the point as a sensor, command, or setpoint

pointFunctionType

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

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

process

Industrial or HVAC process

produces

Equipment produces a substance or phenomenon

pump

Pump equipment or control point

pump-motor

Motor used with a pump to move fluid

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

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

refrigRef

Refrigerant flows from the the referent to this entity

regulates

Equipment regulates the flow of substance or phenomenon

reheat

Command point for reheats process

reheats

Equipment heats a substance previously cooled or heated

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

sensor

Point is a sensor, input, AI/BI

series

Circuit with single path of flow

singleDuct

One single duct

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

state

Software, hardware, or process control status

stateQuantity

What is sensed or controlled of software, hardware, or process state

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

steamHeating

Heating using energy of steam

steamRef

Steam flows from the the referent to this entity

stores

Equipment stores a substance or phenomenon

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

tank

Tank used to store a substance for temporary holding

thd

Total harmonic distortion

thermal

Related to energy of heat

thermal-meter

Meter to measure energy transfer via fluid

thermostat

Senses and controls temperature of space in HVAC system

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

vavAirCircuitType

How does the VAV pull in air

vavMode

Standardized vav operational mode enumeration

vavModulation

How does VAV modulate the temp based on duct pressure

vavModulationType

How does VAV modulate the temp based on duct pressure

vavZone

AHU supplies air to VAV terminal units

ventilates

Equipment brings fresh outside air into a space

ventilation

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

verticalTransport

Equipment to move humans and materials

vfd

Motor with variable frequency drive

volt-angle

AC voltage phase angle

volt-imbalance

AC voltage phase imbalance

volt-magnitude

Magnitude of electrical voltage

waterCooling

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

weather-point

Weather station sensor point

weatherRef

Reference to weather station for to use this entity

weatherStation

Logical weather station and its measurement points

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