symbol – Project Haystack

def

symbol

Symbol to a def. Symbol values are ASCII strings limited to the following chars: a-z, A-Z, 0-9, underbar, colon, dash, dot. See Kinds chapter.

meta

supertypes

val

Data value type

    scalar

Scalar is an atomic value kind

subtypes

choice

Choice specifies an exclusive marker selection

    ahuZoneDelivery

AHU delivery method of conditioned air to the zone

    airVolumeAdjustability

Ability of air handling equip to adjust volume of air flow

    atesDesign

Design type of the ATES underground system

    chillerMechanism

Primary mechanism of chiller

    condenserLoop

Open or closed loop for condenser working fluid

    coolingProcess

Processed used to cool a substance

    ductConfig

Ductwork configuration

    ductDeck

Cold, hot, or neutral deck

    ductSection

Equipment section of ductwork

    equipFunction

Models one of the primary functions of an equipment type

        conveys

Equipment conveys a substance or phenomenon

        cools

Equipment removes heat from a substance

        dehumidifies

Equipment removes moisture from air to decrease humidity

        heats

Equipment heats a substance

            reheats

Equipment heats a substance previously cooled or heated

        humidifies

Equipment adds moisture to air to increase humidity

        moves

Equipment moves a substance

        produces

Equipment produces a substance or phenomenon

        regulates

Equipment regulates the flow of substance or phenomenon

        stores

Equipment stores a substance or phenomenon

        ventilates

Equipment brings fresh outside air into a space

    heatingProcess

Processed used to heat a substance

    meterScope

Classifies a meter as a main site meter or submeter

    pipeSection

Equipment section of piping

    plantLoop

Plant piping loop

    pointFunction

Classifies the point as a sensor, command, or setpoint

    pointQuantity

Quantity the point senses or controls

    pointSubject

What the point senses or controls

    vavAirCircuit

How does the VAV pull in air

    vavModulation

How does VAV modulate the temp based on duct pressure

def

Create a new definition bound to the given symbol

defx

Extends the given definition with additional meta tags

of

Expected value type of a collection, reference, or choice

reciprocalOf

Specifies the inverse of an association or relationships

relationship

Ref tags used to model entity-to-entity relationships

    containedBy

The entity is logically contained by the referent

    contains

Entities logically contained by this entity

    inputs

The entity inputs a substance from the referent

    outputs

The entity outputs a substance to the referent