Relationships
Inverse
Definitions
The subject is upstream of the object in the context of some sequential process; some media is passed between them
SubProperties
Inverse
Type
Definitions
Passes air
Parent Properties
Type
Definitions
To specify the address of a building.
Domain
Definitions
The class is associated with the given tag
Inverse
Definitions
The subject receives the given substance as an input to its internal process
Range
Definitions
Subject is physically located in the location given by the object
Inverse
Range
Definitions
The subject produces or exports the given substance from its internal process
Range
Definitions
The subject is composed in part of the entity given by the object
Inverse
Definitions
The subject has a digital/analog input/output point given by the object
Inverse
Range
Definitions
The subject has the given tag
Inverse
Definitions
The QUDT unit associated with this Point
Domain
Definitions
The tag is associated with the given class
Inverse
Inverse
Inverse
Definitions
Subject is the physical location encapsulating the object
Inverse
Domain
Inverse
Domain
Range
Inverse
Inverse
Domain
Inverse
Domain
Range
Inverse
Definitions
The subject measures a quantity or substance given by the object
Inverse
Domain
Range
Definitions
The subject contributes to or performs the regulation of the substance given by the object
Inverse
Domain
Range
Classes
Type
Definitions
devices that serve all or part of the building and may include electric power, lighting, transportation, or service water heating, including, but not limited to, furnaces, boilers, air conditioners, heat pumps, chillers, water heaters, lamps, luminaires, ballasts, elevators, escalators, or other devices or installations.
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
Breaker Panel distributes power into various end-uses.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Bus Risers are commonly fed from a switchgear and rise up through a series of floors to the main power distribution source for each floor.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Building power is most commonly provided by utility company through a master disconnect switch (sometimes called a service disconnect) in the main electrical room of a building. The Utility Company provided master disconnect switch often owns or restricts access to this switch. There can also be other cases where a disconnect is placed into an electrical system to allow service cut-off to a portion of the building.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Devices or equipment that store energy in its various forms
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A container that stores chemical energy that can be converted into electricity and used as a source of power
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device that changes direct current into alternating current
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
The Motor Control Center is a specialized type of switchgear which provides electrical power to major mechanical systems in the building such as HVAC components.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device containing a block of electrical sockets allowing multiple electrical devices to be powered from a single electrical socket.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A main disconnect or service disconnect feeds power to a switchgear, which then distributes power to the rest of the building through smaller amperage-rated disconnects.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A Transformer is usually fed by a high-voltage source and then steps down the voltage to a lower-voltage feed for low-voltage application (such as lights). Transformers also can step up voltage, but this generally does not apply to in building distribution.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device that provides vertical transportation between floors, levels or decks of a building, vessel or other structure
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A panel-mounted device that provides status and control of a fire safety system
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Movable objects intended to support various human activities such as seating, eating and sleeping
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Utilize a gas distribution source to represent how gas is distributed across multiple destinations
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
See Heating_Ventilation_Air_Conditioning_System
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
Assembly consisting of sections containing a fan or fans and other necessary equipment to perform one or more of the following functions: circulating, filtration, heating, cooling, heat recovery, humidifying, dehumidifying, and mixing of air. Is usually connected to an air-distribution system.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
see Rooftop_Unit
Packaged air conditioner mounted on a roof, the conditioned air being discharged directly into the rooms below or through a duct system.
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
Packaged air conditioner mounted on a roof, the conditioned air being discharged directly into the rooms below or through a duct system.
see Rooftop_Unit
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
Assembly consisting of sections containing a fan or fans and other necessary equipment to perform one or more of the following functions: circulating, filtration, heating, cooling, heat recovery, humidifying, dehumidifying, and mixing of air. Is usually connected to an air-distribution system.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A closed, pressure vessel that uses fuel or electricity for heating water or other fluids to supply steam or hot water for heating, humidification, or other applications.
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
A device that monitors and maintains the temperature, air distribution and humidity in a network room or data center.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A CRAC that is activated as part of a lead/lag operation or when an alarm occurs in a primary unit
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Refrigerating machine used to transfer heat between fluids. Chillers are either direct expansion with a compressor or absorption type.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A chiller that utilizes a thermal or/and chemical process to produce the refrigeration effect necessary to provide chilled water. There is no mechanical compression of the refrigerant taking place within the machine, as occurs within more traditional vapor compression type chillers.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A chiller that uses the vapor compression cycle to chill water. It throws off the heat collected from the chilled water plus the heat from the compressor to a water loop
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
(1) device for mechanically increasing the pressure of a gas. (2) often described as being either open, hermetic, or semihermetic to describe how the compressor and motor drive is situated in relation to the gas or vapor being compressed. Types include centrifugal, axial flow, reciprocating, rotary screw, rotary vane, scroll, or diaphragm. 1. device for mechanically increasing the pressure of a gas. 2. specific machine, with or without accessories, for compressing refrigerant vapor.
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
A device that monitors and maintains the temperature, air distribution and humidity in a network room or data center.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A heat exchanger in which the primary heat transfer vapor changes its state to a liquid phase.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Element inserted into an air-distribution system or element of an air-distribution system permitting modification of the air resistance of the system and consequently changing the airflow rate or shutting off the airflow.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A damper that is part of an economizer that is used to module the flow of air
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A damper that modulates the flow of exhaust air
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A damper that modulates the flow of outside air
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A damper that modulates the flow of return air
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Device that, on proper variable sensing, initiates control signals or actions to conserve energy. A control system that reduces the mechanical heating and cooling requirement.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Any device with two or more blades or vanes attached to a rotating shaft used to produce an airflow for the purpose of comfort, ventilation, exhaust, heating, cooling, or any other gaseous transport.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A fan that pulls air through a cooling tower and across the louvers where the water falls to aid in heat exchange by the process of evaporation
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Fan moving air discharged from HVAC vents
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Fan moving exhaust air -- air that must be removed from a space due to contaminants
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Fan moving return air -- air that is circulated from the building back into the HVAC system
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Fan that is activated as part of a lead/lag operation or when a primary fan raises an alarm
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Fan moving supply air -- air that is supplied from the HVAC system into the building
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
Fan activated to increase airflow beyond what is provided by the default configuration
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Device to remove gases from a mixture of gases
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A filter that is applied to the mixture of recirculated and outside air
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A fume-collection device mounted over a work space, table, or shelf and serving to conduct unwanted gases away from the area enclosed.
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
See Heat_Exchanger
A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall to prevent mixing or they may be in direct contact
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall to prevent mixing or they may be in direct contact
See Heat_Exchanger
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Cooling or heating element made of pipe or tube that may or may not be finned and formed into helical or serpentine shape
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A cooling element made of pipe or tube that removes heat from equipment, machines or airflows. Typically filled with either refrigerant or cold water.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A heating element typically made of pipe, tube or wire that emits heat. Typically filled with hot water, or, in the case of wire, uses electricity.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A heat exchanger in which the primary heat transfer vapor changes its state to a liquid phase.
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device that adds moisture to air or other gases
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Machine for imparting energy to a fluid, causing it to do work, drawing a fluid into itself through an entrance port, and forcing the fluid out through an exhaust port.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A pump that performs work on water
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A pump that performs work on chilled water; typically part of a chilled water system
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A pump that is part of a condenser system; the pump circulates condenser water from the chiller back to the cooling tower
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A pump that performs work on hot water; typically part of a hot water system
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A heater used to warm the air in an enclosed area, such as a room or office
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device that regulates the volumetric flow rate and/or the temperature of the controlled medium.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
See Fan_Coil_Unit
Terminal device consisting of a heating and/or cooling heat exchanger or 'coil' and fan that is used to control the temperature in the space where it is installed
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
Terminal device consisting of a heating and/or cooling heat exchanger or 'coil' and fan that is used to control the temperature in the space where it is installed
See Fan_Coil_Unit
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
See VAV
A device that regulates the volume and temperature of air delivered to a zone by opening or closing a damper
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
A device that regulates the volume and temperature of air delivered to a zone by opening or closing a damper
See VAV
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
See Variable_Air_Volume_Box_With_Reheat
A VAV box with a reheat coil mounted on the discharge end of the unit that can heat the air delivered to a zone
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
A VAV box with a reheat coil mounted on the discharge end of the unit that can heat the air delivered to a zone
See Variable_Air_Volume_Box_With_Reheat
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
An automatic control device used to maintain temperature at a fixed or adjustable setpoint.
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
An alarm that indicates a loss of water e.g. during transport
Electronic device that varies its output frequency to vary the rotating speed of a motor, given a fixed input frequency. Used with fans or pumps to vary the flow in the system as a function of a maintained pressure.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A VFD that drives a heat wheel
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device that regulates, directs or controls the flow of a fluid by opening, closing or partially obstructing various passageways
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve that controls air temperature by modulating the amount of cold water flowing through a cooling coil
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve that controls air temperature by modulating the amount of hot water flowing through a heating coil
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve regulating the flow of domestic hot water
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve that controls air temperature by modulating the amount of hot water flowing through a reheat coil
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve installed on the return side of a heat exchanger
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve that stops the flow of a fluid, usually for maintenance or safety purposes
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve that modulates the flow of water
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A valve that modulates the flow of chilled water
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
Electronic device that varies its output frequency to vary the rotating speed of a motor, given a fixed input frequency. Used with fans or pumps to vary the flow in the system as a function of a maintained pressure.
An alarm that indicates a loss of water e.g. during transport
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device that provides an occupant control over a lighting system
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A switch used to operate all or part of a lighting installation
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A switch providing continuous control over all or part of a lighting installation; typically potentiometer-based
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A switch used to operate all or part of a lighting installation that uses a touch-based mechanism (typically resistive or capacitive) rather than a mechanical actuator
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A complete lighting unit consisting of a lamp or lamps and ballast(s) (when applicable) together with the parts designed to distribute the light, to position and protect the lamps, and to connect the lamps to the power supply.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A power source for a luminaire
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Device consisting of an assembly of parallel sloping vanes, intended to permit the passage of air while providing a measure of protection against environmental influences
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A device that measure usage or consumption of some media --- typically a form energy or power.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A meter that measures usage or consumption of some media for a whole building
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of chilled water of a whole building
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of electricity of a whole building
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of gas of a whole building
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of hot water of a whole building
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of water of a whole building
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of electricity
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of gas
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of water
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of chilled water
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
A meter that measures the usage or consumption of hot water
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Equivalent Classes
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A colloquial term for a photovoltaic module. A Solar panel is an assembly of photovoltaic cells mounted in a framework for installation that use sunlight as a source of energy to generate direct current electricity.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Utilize a steam distribution source to represent how steam is distributed across multiple destinations
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Utilize a water distribution source to represent how water is distributed across multiple destinations (pipes)
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A dedicated weather measurement station
Parent Classes
InDomainOf
InRangeOf
Type
InDomainOf
InRangeOf
Type
Definitions
An independent unit of the built environment with a characteristic spatial structure, intended to serve at least one function or user activity [ISO 12006-2:2013]
a structure wholly or partially enclosed within exterior walls, or within exterior and party walls, and a roof, affording shelter to persons, animals, or property.
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
A level, typically representing a horizontal aggregation of spaces that are vertically bound. (referring to IFC)
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
The floor of a building which is partly or entirely below ground level.
InDomainOf
InRangeOf
Type
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
A part of the physical world or a virtual world whose 3D spatial extent is bounded actually or theoretically, and provides for certain functions within the zone it is contained in.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
Base class for all more specific room types.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
facility acceptable to the local, national, or international recognized authority having jurisdiction and which provides uniform testing and examination procedures and standards for meeting design, manufacturing, and factory testing requirements.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
in a gas separation unit, the insulated section that contains the low-temperature heat exchangers and distillation columns.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
(also known as climatic chamber), enclosed space designed to create a particular environment.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
cold chamber usually kept at a temperature of 22°F to 31°F (–5°C to –1°C), with high-volume air circulation.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
hot air chamber forming part of an air handler.
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Equivalent Classes
Definitions
A level, typically representing a horizontal aggregation of spaces that are vertically bound. (referring to IFC)
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
(1) a separately controlled heated or cooled space. (2) one occupied space or several occupied spaces with similar occupancy category, occupant density, zone air distribution effectiveness, and zone primary airflow per unit area. (3) space or group of spaces within a building for which the heating, cooling, or lighting requirements are sufficiently similar that desired conditions can be maintained throughout by a single controlling device.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
combustion chamber in a furnace or boiler.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
a space or group of spaces, within a building with heating, cooling, and ventilating requirements, that are sufficiently similar so that desired conditions (e.g., temperature) can be maintained throughout using a single sensor (e.g., thermostat or temperature sensor).
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Definitions
substance, as a liquid or gas, that is capable of flowing and that changes shape when acted on by a force.
Parent Classes
InDomainOf
InRangeOf
Definitions
state of matter in which substances exist in the form of nonaggregated molecules and which, within acceptable limits of accuracy, satisfy the ideal gas laws; usually a highly superheated vapor. See [[state]].
Parent Classes
Subclasses
InDomainOf
InRangeOf
Definitions
the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
air contained within a building
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
air in a bypass duct, used to relieve static pressure
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
the air exiting the registers (vents).
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
air that must be removed from a space due to contaminants, regardless of pressurization
Parent Classes
InDomainOf
InRangeOf
Definitions
(1) air that contains two or more streams of air. (2) combined outdoor air and recirculated air.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
air external to a defined zone (e.g., corridors).
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
air removed from a space to be recirculated or exhausted. Air extracted from a space and totally or partially returned to an air conditioner, furnace, or other heating, cooling, or ventilating system.
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
(1) air delivered by mechanical or natural ventilation to a space, composed of any combination of outdoor air, recirculated air, or transfer air. (2) air entering a space from an air-conditioning, heating, or ventilating apparatus for the purpose of comfort conditioning. Supply air is generally filtered, fan forced, and either heated, cooled, humidified, or dehumidified as necessary to maintain specified conditions. Only the quantity of outdoor air within the supply airflow may be used as replacement air.
Parent Classes
InDomainOf
InRangeOf
Definitions
air inside a defined zone (e.g., corridors).
Parent Classes
InDomainOf
InRangeOf
Definitions
Carbon Dioxide in the vapor phase
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Fossil fuel energy source consisting largely of methane and other hydrocarbons
Parent Classes
InDomainOf
InRangeOf
Definitions
water in the vapor phase.
Parent Classes
InDomainOf
InRangeOf
Definitions
state of matter intermediate between crystalline substances and gases in which the volume of a substance, but not the shape, remains relatively constant.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Definitions
Petroleum derived liquid used as a fuel source
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Carbon Dioxide in the liquid phase
Parent Classes
InDomainOf
InRangeOf
Definitions
a viscous liquid derived from petroleum, especially for use as a fuel or lubricant.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Definitions
Petroleum based oil burned for energy
Parent Classes
InDomainOf
InRangeOf
Definitions
transparent, odorless, tasteless liquid; a compound of hydrogen and oxygen (H2O), containing 11.188% hydrogen and 88.812% oxygen by mass; freezing at 32°F (0°C); boiling near 212°F (100°C).
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
Water expelled from a system to remove mineral build up
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
water used as a cooling medium (particularly in air-conditioning systems or in processes) at below ambient temperature.
Parent Classes
Subclasses
InDomainOf
InRangeOf
Parent Classes
InDomainOf
InRangeOf
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Water used used to remove heat through condensation
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Water which has been purified by removing its ions (constituting the majority of non-particulate contaminants)
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Definitions
Tap water for drinking, washing, cooking, and flushing of toliets
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Definitions
Hot water used for HVAC heating or supply to hot taps
Parent Classes
Subclasses
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Definitions
Water used used to makeup water loss through leaks, evaporation, or blowdown
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
InDomainOf
InRangeOf
Type
Parent Classes
Subclasses
InDomainOf
InRangeOf
Definitions
one of the three states or phases of matter characterized by stability of dimensions, relative incompressibility, and molecular motion held to limited oscillation.
Parent Classes
InDomainOf
InRangeOf
Definitions
frost formed on the cold surface (tubes, plates) of a cooling coil.
Parent Classes
InDomainOf
InRangeOf
Definitions
pellets of frozen rain which fall in showers from cumulonimbus clouds.
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InDomainOf
InRangeOf
Definitions
Water in its solid form
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InDomainOf
InRangeOf
Type
Definitions
Alarm points are signals (either audible or visual) that alert an operator to an off-normal condition which requires some form of corrective action
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Subclasses
InRangeOf
Type
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InRangeOf
Type
Definitions
An alarm that indicates loss in air flow.
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InRangeOf
Type
Definitions
An alarm that indicates the off-normal conditions associated with the temperature of air.
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Subclasses
InRangeOf
Type
Definitions
An alarm that indicates the off-normal conditions associated with the temperature of discharge air.
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Subclasses
InRangeOf
Type
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An alarm that indicates that discharge air temperature is too high
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InRangeOf
Type
Definitions
An alarm that indicates the off-normal conditions associated with the temperature of return air.
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InRangeOf
Type
Definitions
An alarm that indicates that return air temperature is too high
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InRangeOf
Type
Definitions
An alarm that indicates that return air temperature is too low
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InRangeOf
Type
Definitions
An alarm that indicates the off-normal conditions associated with the temperature of supply air.
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InRangeOf
Type
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