choice

Choice specifies an exclusive marker selection. See Choices chapter.

def	choice
is	marker
lib	lib:ph

marker	Marker labels a dict with typing information

ahuZoneDelivery	AHU delivery method of conditioned air to the zone
chilledBeamZone	AHU supplies air to chilled beam terminal units
directZone	AHU supplies air directly to the zone
multiZone	AHU discharge air is split into a duct per zone
vavZone	AHU supplies air to VAV terminal units
airVolumeAdjustability	Ability of air handling equip to adjust volume of air flow
constantAirVolume	Delivers a constant volume of air flow
variableAirVolume	Delivers a variable volume of air flow
atesDesign	Design type of the ATES underground system
atesClosedLoop	The ATES uses closed piping to transport a water/glycol mixture through the ground
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
chillerMechanism	Primary mechanism of chiller
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
condenserLoop	Open or closed loop for condenser working fluid
condenserClosedLoop	Working fluid is kept separate from fluid used for heat transfer into the atmosphere
condenserOpenLoop	Uses working fluid itself for evaporation into the atmosphere
coolingProcess	Processed used to cool a substance
airCooling	Cooling by dissipating heat into the surrounding air
chilledWaterCooling	Cooling using transfer of heat to chilled water
condenserCooling	Removal of heat through the process of water condensation
dxCooling	Cooling using direct expansion of a refrigerant vapor
waterCooling	Cooling using transfer of heat to water which is not explicitly chilled
ductConfig	Ductwork configuration
dualDuct	Two ducts
singleDuct	One single duct
tripleDuct	Three ducts
ductDeck	Cold, hot, or neutral deck
coldDeck	Duct carries air for cooling
hotDeck	Duct carries air for heating
neutralDeck	Duct carries air which by-passes both heating and cooling coils
ductSection	Equipment section of ductwork
discharge	Duct for air leaving an equipment
economizer	Duct to access fresh outside air only for economizing, not ventilation
exhaust	Duct used to expel air back outside
flue	Duct for exhausting combustion
inlet	Duct with air entering an equipment
mixed	Duct where fresh outside air and return air is mixed together
outside	Duct to access fresh outside air for both ventilation and economizer
return	Duct returning air back to equipment
ventilation	Duct to access fresh outside air only for ventilation, not economizing
heatingProcess	Processed used to heat a substance
biomassHeating	Heating by the combustion of biomass
coalHeating	Heating by the combustion of coal
dxHeating	Heating using direct expansion of a refrigerant vapor
elecHeating	Heating by the conversion of electrical energy
fuelOilHeating	Heating by the combustion of fuel oil
hotWaterHeating	Heating using energy of hot water
naturalGasHeating	Heating by the combustion of natural gas
propaneHeating	Heating by the combustion of propane
steamHeating	Heating using energy of steam
meterScope	Classifies a meter as a main site meter or submeter
siteMeter	Main meter for the associated site
submeter	Submeters measure usage of a sub-system or equipment within a site
observes	Observable subscription - see docs
pfScope	Power factor scope
pfDisplacement	Displacement power factor, which accounts for the phase angle between voltage and current but excludes effects of nonlinear waveforms ( harmonic distortion)
pfDistortion	Distortion power factor, which measures the component of power factor attributable to harmonic distortion in voltage and current waveforms
pfTrue	True power factor, which includes effects of harmonic distortion
pfStandard	Standard for interpreting power factor's positive or negative sign
pfIec	Power factor according to the IEC convention defines a positive or negative sign based on the direction of active power flow
pfIeee	Power factor according to the IEEE convention defines a positive or negative sign based on whether the load is capacitive or inductive
phaseCount	Number of phases for an AC electrical power system or connected equipment
singlePhase	Single-phase AC electricity
splitPhase	Split-phase AC electricity
threePhase	Three-phase AC electricity
twoPhase	Two-phase AC electricity
pipeFluid	Type of fluid conveyed by piping
pipeSection	Equipment section of piping
bypass	Pipe used to bypass an equipment
circ	Pipe used to circulate fluid through an equipment or system
entering	Pipe conveys fluid into an equipment
header	Pipe used as central connection or manifold for other piping runs
leaving	Pipe conveys fluid out of an equipment
plantLoop	Plant piping loop
primaryLoop	Pipework which circulates closest to the energy source
secondaryLoop	Pipework which circulates closest to the building or end use
tertiaryLoop	Pipework which circulates within the building
pointFunction	Classifies the point as a sensor, command, or setpoint
cmd	Point is a command, actuator, AO/BO
sensor	Point is a sensor, input, AI/BI
sp	Point is a setpoint, soft point, internal control variable, schedule
synthetic	Synthetic point with computed operational data
computed	Computed point
ml	Machine learning point
sim	Simulation point
pointQuantity	Quantity the point senses or controls
pointSubject	What the point senses or controls
simScenario	See Synthetics chapter
simBaseline	See Synthetics chapter
simOperation	See Synthetics chapter
simOptimum	See Synthetics chapter
tankSubstance	Substance stored by a tank
vavAirCircuit	How does the VAV pull in air
vav-parallel	VAV pulls air from outside the primary air flow
vav-series	VAV pulls air from the primary air flow
vavModulation	How does VAV modulate the temp based on duct pressure
pressureDependent	VAV damper modulates to control space temp
pressureIndependent	VAV damper or a control valve that modulates to maintain desired flow setpoint

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choice

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