Appendix_8_-_GOMAR_ACRONYM_LIST.pdf

ACRONYM (see

* below) DESCRIPTION AND DEFINITION

ACD

AIR COOLED CONDENSER: Is a component of a direct expansion split-system, containing the condenser coil and fan; may also contain the compressor. Will be associated with another

GOMAR equipment number (typically an AHU; could also be for a supplementary coil in an

ACS, or for some other equipment type). For new ACD associated with an AHU, use same as

AHU number; i.e., ACD007 related to AHU007. (For some existing ACD and AHU, the numbers may not match). For an ACD related to non-AHU, use the next available sequential

ACD number.

ACF

AIR CURTAIN FAN: A high speed fan that blows across a doorway to reduce heating/cooling loss.

ACS

AIR CONDITIONING SYSTEM: Is a stationary unit. Primary source of cooling is plant supplied chilled water, although a supplemental or back-up DX coil may be included. Supplies air to other controlled components (i.e. induction units, VAV boxes, zone reheats, fan-coils, etc.)

Is normally remote controlled by Metasys system.

ACU

AIR CONDITIONER UNIT: Any self contained, single cabinet DX unit (i.e. window shaker, trailer unit, roof top unit, wall mounted unit, etc.) . Condenser may be air or water cooled.

[Do not use ACU for a split-system, with condensing unit separate from air handler; for that use AHU and either ACD or WCC].

ADO

ACCESSIBLE DOOR OPERATOR SYSTEM: Includes both touch pad and motion sensor controlled doors.

AHU

AIR HANDLER UNIT: Has minimal duct work, typically serves one room or area. Typically is not remote controlled by Metasys. Includes Computer Room stand-up type units. May be portable. Cooling can be plant supplied (chilled water) or DX (split-system only). For new DX

AHU, use the same number as AHU for condensing unit; i.e., ACD007 or WCC007 related to

AHU007 (for existing ACD and AHU, the numbers may not match). [Do not use AHU for self-contained (non-split-system) DX units; for those use ACU].

AIP

AIR INTAKE PLENUM: Is a component of an AHU or ACS. Is located at the outside air intake. Is normally located on a roof or in a area way. May or may not be filtered. Includes bird screen, louvers, filter rack, area way and drains.

APU AIR PURGE UNIT: Equipment used to purge air from refrigeration unit.

ARP

AIR PUMP: A pump that supplies air for aeration or other purposes, but does not need certification as a compressor. It does not connect to any element of a pressurized system such as a storage tank, relief valve or pressurized piping.

ARV

AIR RELIEF VENT: Air relief vents, either automatic or manual, used to relieve air pressure when filling closed water systems. Automatic air vents are usually found on building hot and cold water systems. Manual air vents are usually found on the underground chill water pipe systems.

ASP

AIR SEPARATOR: Device that separates the air from the water (heating or chilled) and diverts it to the air vent for quick and automatic removal.

ATS

AUTOMATIC TRANSFER SWITCH: Automatic transfer of critical loads from one power source to an alternate power source upon loss of power.

BBH

BASEBOARD HEATER: A baseboard height heating element that is for the purpose of climate control. Can be a number of types (i.e.. electric, steam or hot water).

BFP

BACKFLOW PREVENTION DEVICE: Device used at cross connection points to prevent contamination of the potable water system.

BLR BOILER: Stationary equipment used in the production of steam or hot water..

BSD

BUS DUCT: The indoor power distribution system using manufactured bus systems. The

GOMAR TAG shall be placed at the point of BSD origination (line side connection), and at

EACH tap location.

BSF

BOOSTER SUPPLY FAN: Any fan associated with supply duct that moves air in the same direction as the supply fan. May be associated with a reheating source.

BSS BUS SAFETY DISCONNECT SWITCH: Safety disconnect switches used for Busway systems.

BST

BRINE STORAGE TANK: A tank for brine which is used as part of the Water Softening or

Condensate Polishing systems (Power Plants only).

C *

FIRE PUMP CONTROLLER: Controls the starting and stopping of the fire pump and automatically transfers from the normal power source to the alternate power source upon loss of power. The Fire Pump Controller also monitors/signals the status and condition

CAD

COMPRESSED AIR DRYER: A refrigeration unit used to dry air by cooling it until the moisture condenses out.

CAF

COMPRESSED AIR FILTER: A stand-alone filter on a compressed air system. Can be a coalescing, particulate, or other type of filter.

CAM

MANHOLE - COMPRESSED AIR: A manhole containing only compressed air piping and valving which is big enough for a person to enter.

CAV COMPRESSED AIR VALVE: A gate valve used to isolate compressed air systems.

CDP

CONDENSER WATER PUMP: Pumps used in Power Plants to move condenser water through the system, typically from tower sump to the chillers; or through another portion of system such as a strainer, filter, or solids separator.

CFP

CHEMICAL FEED PUMP: Used to pump water treatment chemicals, either from bulk storage chemical tanks to chemical feed tanks, or from a chemical feed tank into a component of the system to be treated. (Power Plants Only)

CFT

CHEMICAL FEED TANK: Tank used to mix water treatment chemicals prior to pumping the mixture into a component of the system to be treated. (Power Plants Only)

CHV

CHILLED WATER DISTRIBUTION VALVE: A buried valve box containing a chilled water shut off valve.

COF

COFFEE URN: Production coffee maker used to brew and/or dispense large amounts of coffee. Normally used in GEWA cafeterias.

CPS CARD KEY POWER SUPPLY: Provides Power to the Fire Alarm Cardkey Field Devices

CRA CRANES AND LIFTS: Materials lifting device.

CRP

CONDENSATE RETURN PUMP: A pump which pumps steam condensate back to Central

Power Plant. To include pressure powered-steam pumps. Normally mounted in tandem on a condensate receiver.

CRT

CONDENSATE RETURN TANK: Tank which collects the condensate returned from the site, to feed into the Condensate Pumps (Power Plants only).

CSG

CLEAN STEAM GENERATOR: A type of humidifier used to supply uncontaminated humidification to laboratory areas.

CST

CHEMICAL STORAGE TANK: Bulk storage tank used to store water treatment chemicals for use in the plant. (Power Plants only)

CTP

CONDENSATE PUMP: Pumps condensate from the Condensate Return Tank to the

Condensate Polisher (Power Plants only).

CVY TRAY CONVEYOR: Used to move dirty dishes from the dining area to the dishwasher.

CWM

MANHOLE - CHILLED WATER: A manhole used by the central power plant to distribute chilled water throughout the center.

CWP CHILLED WATER PUMP: A pump which circulates chilled water.

CWT

COOLING WATER TOWER: Structure used for cooling return condenser water. Each cell of a cooling tower receives a CWT number, and includes related equipment such as the structure, fill, drift eliminators, fan, motor, and gearbox.

DCC *

DUCT COOLING COIL (DUCT MOUNTED): A cooling coil mounted in a duct. May be either chilled water or DX. (Cooling coils which are part of an air handler are considered part of that equipment and not separately numbered.

DCP

DIGITAL CONTROL PANEL: Any panel with non-Metasys digital control devices. Used for boiler controls, standalone pump controllers, etc. [Metasys panels and controllers will no longer be GOMAR'ed since they are identified by unique addresses within the Metasys UCS system].

DCS

DUST COLLECTION SYSTEM: A device which removes particulate matter from an exhaust air stream. Generally of the type using centrifugal force to separate particles from the air stream, often referred to as cyclone type. May incorporate a fan as part of the unit, or may be associated with separately designated exhaust fans (EXH or HXF). DCS may be part of shop equipment which does not have its own GOMARS, such as a sandblaster. Can also refer to central vacuum cleaning system equipment.

DEH

DEHUMIDIFIER: A unit which removes moisture from the air; may be either a refrigeration type, or a desiccant type of unit.

DHP

DOMESTIC HOT WATER PUMP: Pump used for potable hot water; can be either recirculating or presssure booster pump.

DIW

DISHWASHER MACHINE: Machine used to wash dishes and utensils after use in the cafeteria.

DSP

DRUM STORAGE PALLET: A specially equipped storage pallet that provides emergency secondary containment for liquid-filled 55 gallon drums. Each pallet holds two 55-gallon drums. Multiple pallets can be combined to form a single unit having the needed capacity.

DWC

DOMESTIC [HOT] WATER CONVERTER: Consists of a shell and tube assembly used to produce domestic (potable) hot water from steam, and separate from the hot water storage tank (HWT). (Not used for HVAC hot water -- see HWC).

DWM

MANHOLE - DOMESTIC WATER: A manhole containing only domestic water piping and valving which is big enough for a person to enter.

DWP

DOMESTIC WATER PUMP: Pump used for potable cold water (sometimes referred to as "city water"); can be either recirculating or pressure booster pump.

DWV DOMESTIC WATER DISTRIBUTION VALVE: Shut off valve on domestic water mains.

EAC

ELECTRONIC AIR CLEANER: Electronic device for cleaning air; may be ceiling mounted, standalone, or duct-mounted.

EAG ELECTRIC AUTOMATIC GATE: A gate opened and closed by an electric motor.

ELI

EMERGENCY LIGHTING INVERTER: Equipment that provides battery backup to emergency lighting systems. Emergency lighting inverters typically operate in a "break-before-make" sequence, providing a momentary break in service.

ELP

EMERGENCY LIGHTING PACK: Battery powered lighting that is strategically located throughout a building so that entrance and egress may be completed safely in the event of a power failure. Does NOT include light fixtures served from lighting inverters or UPS systems.

ELV

ELEVATOR: Device used to transport material or personnel from different floor elevations, includes Handicap Lifts.

EOP ELECTICAL OPERATED PARTITION: A wall (partition) opened and closed by an electric motor.

EWS

EMERGENCY WASH STATION: A station for emergency flushing of contaminants from the eyes or skin. These stations are normally strategically placed in labs and battery rooms.

Includes both Eyewash Stations and Emergency Showers.

EWT ELEVATED WATER STORAGE TANK: Main water tower for the base.

EXH

EXHAUST FAN: A fan that is used to remove air from a specified area and discharge it to the atmosphere. Not to be used as the designation for Fume Hood (FHD) fans or other fans exhausting hazardouss gases. Instead, use HXF. (Older EXH fans currently serving some fume hoods or other hazardous gas sources should be renumbered with an HXF acronym GOMAR number and field tag as soon as noticed).

EXJ

EXPANSION JOINT: Bellows or other type of mechanical joint to allow for thermal expansion, in steam, condensate, or other system.

EXT

EXPANSION TANK: It used in a hydraulic system to provide a space into which noncompressible liquid can expand or for which it can contract as the liquid undergoes volumetric changes with changes in temp. To include:1.Open, 2.Closed, 3.Diaphram type tanks.

FAD

FIRE ALARM AUTO DIALER: A component of a fire/smoke detection system that will automatically send alarm messages to preprogrammed telephone numbers when the alarm system is activated.

FAS

FIRE ALARM AIR SAMPLING SYSTEM: A smoke detection system that monitors a specific area by continuously drawing air through multiple sampling holes in a network of small pipes.

The air samples are filtered to remove dust, then tested for the presence of smoke particles.

FBD

FIRE ALARM BEAM DETECTION SYSTEM: A system for detecting smoke in an open area by measuring the attentuation and/or detecting the obstruction of light beams between transmitters/emitters and imagers/receivers.

FCB

FEEDER CIRCUIT BREAKER: Draw out type circuit breaker that serves as the disconnecting means for distribution feeders. Feeder circuit breakers are rated at 15 kV, 5 kV, 480 volts, or

208 volts.

FCP *

FIRE ALARM CONTROL PANEL: Receives alarm signals from smoke detectors, pull stations, and flow switches. Processes signals, sounds horns or bells, and reports the alarm to

Console.

FCU *

FAN COIL UNIT: A unit that is plant supplied and serves a single room (much like an Induction

Unit ( ICU ) that supplies warm or cold air and has an electric fan motor.)

FCV

FIRE CONTROL VALVE: A valve that controls the flow of water to, or isolates sections in, a water-based fire protection system (e.g.sprinkler, standpipe or water-mist systems).

FDC

FIRE DEPARTMENT CONNECTIONS: A connection through which the fire department can pump supplemental water into the sprinkler system, standpipe,, or other system furnishing water for fire extinguishment to supplement existing water supplies.

FDR

FEEDER: Conductors that provide electrical distribution throughout GSFC. Feeders include

35 kV conductors that serve the East Substation, and 15 kV / 5 kV conductors that serve building loadcenters and power plant equipment (chillers, pumps, etc).

FDT

FUEL DAY TANK: A small fuel tank located near the operating equipment to which fuel is transferred from a storage tank.

FHD

FUME HOOD: A ducted engineered cabinet, within which hazardous or toxic chemicals or materials are handled or stored, having a required exhaust airflow rate or face velocity generated by an external building hazardous exhaust fan (HXF). This would include suitable engineered fume hoods, flow hoods, flow benches and fixed slot type hoods. (Old EXH fans currently serving some fume hoods should be renumbered with an HXF acronym GOMAR number and field tag as soon as possible).

FID

FIELD INTERFACE DEVICE: An Electronic Control Unit used to monitor the status of building environment and turn on/off Air Handlers. [obsolete, for Old Radix-UCS, none in use since the early '90s when replaced by Metasys]. FID listings deleted from Maximo Jan. 8, 2013.

FLM

FLOW METER: A device for measuring the rate of flow of fluids, ex: steam, chilled water, etc. Includes domestic water meters.

FLT

FLASH TANK: Used to collect flash steam from a high pressure a steam trap, which is usually piped away from the top of the vessel to the low pressure steam system. The condensate drains from the bottom to a steam trap.

FOP FUEL OIL PUMPS: Any pump that is used to transfer fuel.

FPD *

NOTIFICATION CIRCUIT EXPANDER: Combination auxiliary power supply and notification circuit expander (Pyrotronics PAD-2, -3 and -4) to support fire alarm notification circuits, e.g., audio alarms, strobes, etc. Typically, FPDs are remotely located from the fire alarm control panel.

FPP

FIRE PROTECTION PUMP: A pump supplying water at the flow and pressure required by water-based fire protection systems.

FRD *

FIRE DAMPER: A damper with a fusible link that closes at a fixed temperature, to prevent spread of fire through ducts or rated wall openings. Includes fusible link door louvers.

FRY KITCHEN FRYER: Any food service frying equipment.

FSD *

FIRE/SMOKE DAMPER: A damper which serves both as a fire damper and as a smoke damper.

FSS

FIRE SUPRESSION SYSTEM: A fixed building system that automatically activates to extinguish a fire through the use of an extinguishing agent. The extinguishing agent may be liquid, gas, or powerdered solid; the most common agents are water and CO2. Building standpipe and hose systems (SHS) may of may not be combined with the FSS. This designation should not be used for dampers or other physical mechanisms used to suppress fires.

FST FUEL STORAGE TANK: The primary storage tank for single or multiple pieces of equipment.

FTP FIN TUBE PUMP: Hot water circulating pump used for finn radiation heating system.

FUR

FURNACE (GAS or OIL BURNER): Any gas or oil fired vessel that transfers heat to air for the purpose of climate control of a specific area.

FVC

FIRE ALARM VIDEO CAMERA: A specialized video camera with a built-in microprocessor that runs a flame and smoke detection algorithm on the image. It transmits alarm and trouble signals through the fire alarm system to the building's fire alarm control panel and Network

Command Center. It transmits video via IP/Ethernet for live monitoring at the NCC and to a network video recorder for storage.

FVR

FIRE ALARM VIDEO RECORDER: Stores video from the smoke/flame detection cameras (FVC) to document alarm events. Also can be used for live monitoring when a monitor is connected to it.

FWP FEED WATER PUMP: A pump that is designed to pump hot water to the Boilers.

FZN * FIRE ALARM ZONE: Fire alarm zone (or loop) for initiating or notification devices.

GAF

NATURAL GAS FILTER/SEPARATOR: A device to remove water and particulates from a gas stream. In the Central Power Plant, these filters clean natural gas and landfill gas.

GEN GENERATOR: Stationary or portable equipment used in the production of electrical power.

GLF

GLASS FILLER: A drinking water station that provides filtered water. May also contain an ice dispenser.

GLP

GLYCOL PUMP: A pump used to circulate a mixture of water and glycol (or similar substance used as anti-freeze) within a closed system, to transfer heat between other pieces of equipment.

GRL GRILL: A food preparation grill, heated by any means.

GTR

GREASE TRAP: A device to separate grease from waste water, to prevent the grease from entering the sanitrary sewer system; may be located in a garage for automotive wastes, or in a cafeteria for food wastes. Grease must be periodically emptied from trap and properly disposed.

HBX

HOT BOX: Outdoor enclosure with integral heater(s). Used to house above ground equipment that otherwise would be subject to damage from freezing; for example, above ground backflow preventers on water lines. Includes heaters (generally electric) and controls, so these are not numbered separately.

HDW

HEADWALL: An end section or end wall that transitions underground piping to grade. This may include concrete, metal, HDPE or other material.

HEX

HEAT EXCHANGER: A device used to transfer heat from one fluid to another without allowing them to mix. Fluids can be both liquid, both air (or other gas), or liquid and air (or other gas).

Use HEX only for equipment that does not have its own more specialized acronym (such as

HWC).

HFU

HEPA FILTER UNIT: A HEPA filter assembly which is not a part of an air handler. May be a filter bank only, or a modular unit with fan. Excludes terminal (ducted) HEPA filter units, which lack the prefilters and fans needing regular maintenence.

HUM *

HUMIDIFIER: Adds humidity to air in a duct or room. May be steam or electronic (heating water to steam an electric heating element. May be duct mounted or free-standing unit.

(Does NOT include humidifiers in the ACS Units).

HVC HIGH VOLTAGE CONTROL CENTER: 5kV motor control center for chillers.

HVS

HIGH VOLTAGE SWITCH: High voltage pad mounted switch used to isolate the primary ahead of a transformer. Typical ratings are 5 kV and 15 kV. Included under this acronym are 35 kV air switches used at the Central and East Substations. This acronym shall NOT be used for primary switches associated with primary and secondary unit substations (double-ended loadcenters).

HVT

HIGH VOLTAGE TRANSFORMER: Transformers with rated primary voltages above 600V (up to 35 kV at GSFC) and rated secondary voltages of 15 kV, 5 kV, 480 volts, or 208 volts.

Equipment includes substation transformers, pad mounted transformers, chiller transformers, and transformers associated with primary and secondary unit substations

(double-ended loadcenters).

HWC

HOT WATER CONVERTER: Consists of a shell and tube assembly used to produce hot water from steam, for use in HVAC systems. (Not used for domestic hot water -- see DWC and

HWT).

HWP HOT WATER PUMP: Hot water circulating pump used for building heating.

HWT

HOT WATER TANK: A holding or storage vessel for domestic hot water. This may or may not accommodate the heating element. It may be an instantaneous type heater. It may be steam or electric .

HXF

HAZARDOUS EXHAUST FAN: A fan used to remove hazardous chemical gases and discharge them to the atmosphere either directly or through scrubbers. Used to exhaust air from fume hoods (FHD) or from other hazardous gas sources.

HYD

HYDRANT: An upright pipe with a spout or nozzle for drawing water from a water main. Use utility designation "973" for Parent, with "000" GOMAR prefix. Use Bld. number as first two acronym digits, third digit the hydrant number, i.e. 000-HYD082 is hydrant#2 at Bld 8.

ICM ICE MACHINE: Refrigerating Unit to make ice from water by removing heat from water.

ICU

1). INDUCTION UNIT: A room terminal heating/cooling unit, usually installed as part of a window sill, which uses centrally conditioned medium or high pressure primary air and hot/cold water. Primary Air flows through the induction nozzles and induced air flows through hot &/or cold coil(s). All Induction Units on Center are currently tagged in field, and linked to MAXIMO database by One Linked Record per Building. Induction Units are being phased out of the Center. 2). Chilled Beam: Similar to an Induction Unit in function, but installed at ceiling height. They are numbered individually, with the number of the supply

ACS included in the GOMAR formatting.

IDF *

IN-LINE DUCT FILTER: An air filter that is not a part of a mechanical device such as an air handler. This is usually used to prevent any particulate which have migrated in the duct from entering the occupants area.

IRC

IN-RACK COOLER: A unit that is located integral to a rack of computer equipment that is supplied by chilled water. A fan built into the cooler supplies cold air exclusively to the computer equipment through openings in the racks. The unit does not provide cooling to the room.

ITV

INSPECTOR TEST VALVE: A valve on a wet sprinkler system, that is used to test the water flow alarm. Opening the valve simulates a sprinkler activation.

J *

JOCKEY PUMP: A small pump, assocaiated with the main fire pump, and used to maintain a minimum pressure in the fire protection system. Includes controller which senses pressure in system and starts pump if the pressure drops below the set point, stops pump when pressure reaches set point.

KSE KITCHEN STEAM EQUIPMENT: Any equipment using steam to cook or heat food.

LBK

LOADBANK: Equipment used to load test diesel engine generators. A loadbank typically consists of a primary switch, step-down transformer, and 480 volt resistive and reactive components. (Power Plants only).

LCR *

LOAD CENTER: Primary and secondary unit substations (loadcenters), either single-ended or double-ended, that distribute power in buildings at GSFC. Loadcenters include primary switches (typically 5kV and 15kV), transformers, and distribution switchgear.

LDT

LEAK DETECTION SYSTEM: A system with sensors to detect leakage from a monitored fluid system, and a control panel with alarms to indicate locaton of leaks.

LEV

DOCK LEVELERS: Located on loading platforms or docks, used during the unloading of material from trucks to provide a ramp from the truck to the dock surface. Can be electric or manual type.

LOT

LUBE OIL TANK: A permanent bulk storage tank for lubricating oil; may include a pump to transfer the oil to the lubricated equipment. (Note: a tank feeding oil into a single piece of equipment would be condsidered part of that equipment, not numbered separately as a

LOT. Replaceable drums also are not numbered.)

LVT

LOW VOLTAGE TRANSFORMER: Transformers with primary and secondary voltages rated at

600 volts or below.

M *

MOTORS: Induction motors that drive various mechanical equipment/systems, eg, HVAC systems, pumps, compressors, exhaust fans, etc.

MAC

MACHINE AIR COMPRESSOR: Generates compressed air, used to run a buildings pneumatic components, or for other shop/process air requirements.

MCB

MAIN CIRCUIT BREAKER: Draw out type circuit breaker that serves as the main disconnecting means for distribution switchgear and primary / secondary unit substations (double-ended loadcenters). Main circuit breakers are rated at 15 kV, 5 kV, 480 volts, or 208 volts.

MCC * MOTOR CONTROL CENTER: Group mounted motor controllers in a single housing.

MIX MIXER: Mechanical mixer used in food service preparation.

MTS

MANUAL TRANSFER SWITCH: Manual transfer of critical loads from one power source to an alternate power source.

MUH

MOTORIZED UNIT HEATER: A heat exchanger that uses an electric motor to move air across a heating surface. Used in penthouses, dock areas and mechanical rooms. Heating Coils can be electric, steam or hot water, or fired by gas or oil.

NCC

NETWORK COMMAND CENTER - Fire Alarm System Network: Provides central monitoring and control for the GSFC fire alarm network. As of September 12, 2011 there are three NCC locations: Bld. 24 Emergency Console, Bld. 24 Fire Alarm Shop and Bld. 31 Emergency

Console.

NTS

NEUTRALIZATION TREATMENT SYSTEM: A treatment system that adjusts the pH of waste water to within acceptable pH levels.

OHD

OVERHEAD DOOR: Roll-up Doors to include manually or electrically operated overhead doors.

OVG GAS OVEN: A gas fueled oven.

OVN ELECTRIC OVEN: An electrically powered oven.

PCA ** PIPE COMPRESSED AIR: Piping system for compressed air.

PCW **

PIPE CHILLED WATER: Piping system for chilled water. Includes chilled water supply and return; secondary (dual-temperature) supply and return; and process cooling water supply and return.

PDU

POWER DISTRIBUTION UNIT: Combination isolation transformer and panelboard used primarily for computer room power distribution. PDU's are usually located in the computer room for local distribution.

PDW **

PIPE DOMESTIC WATER: Piping system for domestic water. Includes: potable cold and hot water supply, hot water return (recirculation), refrigerated water (central water cooler systems), and non-potable lines such as make-up water to other utility systems.

PGA ** PIPE GAS: Piping system for fuel gas. Includes natural gas supply, and landfill gas supply.

PHW **

PIPE HOT WATER: Piping system for hot water used for building heating. Includes supply and return. (Does not include domestic hot water piping, which is part of PDW).

PIV

POST INDICATOR VALVE: A shut off valve for supplying water to a building fire suppression system. The valve has an indicator that shows the position of the valve at a distance.

PMH

MANHOLE - POWER : A designated manhole used by the HV electric shop to distribute 5 kV and 15 kV power feeders to the various buildings at GSFC. Power manholes also support

35kV feeders to the Central Substation and from the Central Substation to the East

Substation.

PRI

PRIMARY SWITCH: High voltage switch used to isolate transformers associated with primary and secondary unit substations (double-ended loadcenters). Typical ratings are 5 kV and 15 kV. Included under this acronym are 15 kV (outdoor upright type) load interruptor switchgear used at the remote sites for the loop feeder.

PSC **

PIPE STEAM/CONDENSATE: Piping system for steam supply and steam condensate return.

Includes: high, medium and low pressure steam; high, medium and low pressure condensate; and pumped condensate.

PSS ** PIPE SANITARY SEWER: Piping system for sanitary waste drainage.

PST **

PIPE STORM SEWERS: Piping system for storm drainage: Includes roof drain piping in buildings as well as storm drain piping on site.

PWP

PROCESS WATER PUMP: A pump used to provide chilled or processed water to laboratory areas for use in lab equipment.

RAD

RADIATOR: A part of the cooling system for a diesel generator set, which rejects the waste heat to the outside air. (Power Plants only).

RAF RETURN AIR FAN: Returns air back to an ACS. Is part of an air conditioning system.

REF REFRIGERATOR UNIT: Equipment used for cold storage. Normally found in the cafeteria.

REU

REFRIGERATING EQUIPMENT (CHILLER): Used in producing chilled water for the center. To include portable chillers. Use site designator for Portable Chillers.

RHC *

REHEAT COIL (DUCT MOUNTED): A heating coil mounted in a supply air duct, used to control temperature of air supplied to a zone. May be either steam, hot water, or electric. (Reheat coils which are part of either a VAV box or an air handler are considered part of that equipment and not separately numbered).

ROT ROTISSERIE: An oven that rotates the food to heat it evenly as it is cooked.

RTU

REFRIGERANT TRANSFER UNIT: Equipment used to transfer refrigerant into and out of chillers.

S *

MOTOR STARTER CONTROLLER: Combination motor starter/disconnect switch for control of an individual motor.

SAF

SUPPLY AIR FAN: Supplies 100% outside air to fume hoods, Transformer Rooms and

Mechanical Rooms. May include reheat coil.

SBD

SECURITY BARRIER DEVICE: Any type of mechanical or solid barrier device used to prevent access for security purposes. This includes all components that comprise the barrier system including: tire shredding blades, site glass, filler caps, breather cap fillers, drive surfaces, drains, filters, caution lights, hydraulic lines, inner and outer surfaces, pumps, reservoirs, barrier containment pit, and concrete (Jersey) barriers.

SCF

SMOKE CONTROL FAN: A Fan that is used to pressurize an area to keep the smoke from entering or a fan that is used to exhaust the smoke from an area.

SCP *

SWITCHGEAR CONTROL POWER: DC control power system for electrical switchgear.

Equipment includes the Battery Plant (identified as suffix "B", e.g., 031S-SCP001B) and the

Battery Charger (identified as suffix "C", e.g., 031-SCP001C).

SCR

SCRUBBER- WET : An air pollution control device used to remove particles and fumes from air by entering the pollutants in a water spray.

SDI

STORM DRAIN INLET: A storm drainage structure designed to collect surface water into a storm drain.

SDM MANHOLE - STORM DRAIN: A manhole used to service a storm drain pipe.

SDS

SAFETY DISCONNECT SWITCH: Electrical disconnecting means for electrical equipment, e.g., transformers, panelboards, service entrance equipment, etc. (This acronym shall NOT be used for disconnect switches that serve typical AHU's, pumps, exhaust fans, etc. Tag these disconnect switches with the equipment GOMAR number that it serves.)

SEP SEWAGE EJECTOR PUMP: Pump for force sewer mains

SGR

SWITCHGEAR: Electrical switchgear, either metal-clad or metal enclosed switchgear, typically utilized at the substation and generator plants. This acronym shall NOT be used for primary and secondary unit substations (double-ended loadcenters).

SHS

STANDPIPE AND HOSE SYSTEM: An arrangement of piping, valves, and hose connections installed in a building or structure in stairs, exit passageways and corridors for the purpose of manual firefighting by trained fire department personnel. This system may or may not be combined with the building fire supression system (FSS).

SHV

STANDPIPE HOSE VALVE: A valve that controls the flow of water from a standpipe to firefight hoselines on a standpipe and hose system (SHS).

SLC SLICER: A machine used to slice meat, cheeze, etc., during food preparation.

SLD

SLIDING DOOR: A sliding door to include mechanically and/or electrically operated sliding doors.

SMD *

SMOKE DAMPER: A motorized damper that is specially designed to prevent spread of smoke by the HVAC system, closed in response to a signal from the smoke detection system.

SNM *

MANHOLE - SANITARY: A manhole at the junction of underground sanitary sewer lines, or a pit where sewage ejection pumps are located.

STA

STEAM STATION: A pressure reducing station used to drop high pressure steam (typically at

100 psig) to low pressure steam (typically between 10 and 15 psig).

STM MANHOLE - STEAM: A manhole used to distribute steam throughout the center.

SUB

SUBSTATION: The electrical substations @ GSFC - the Central Substation on the Main

Campus and the East Substation (or East Switchyard) on the East Campus. The SUB acronym shall be used to identify miscellaneous equipment (within the fenced area of the substation) that is not covered by another equipment acronym. For example, if repairs at the Central

Substation were required to the enclosure or roof of a switchgear line-up, or to the perimeter lighting system, the GOMAR number would be 024S-SUB001.

SUP

SUMP PUMP: Used to pump water to a drain from a sump located inside a building, a pit, or manhole. In manholes, the sump pump three-digit number should match the three-digit manhole number where the pump is located.

SWB

SWITCHBOARD - Switchboards, typically rated at 480/277 or 208/120 volts and 1200 amps or greater, provide secondary power distribution to various electrical equipment and main distribution panelboards. Switchboards are typically located in electrical rooms and are fed via loadcenter feeder breakers. Switchboards are freestanding with front and rear accessibility.

SWM

WATER IMPOUNDMENT STRUCTURE - Artificial water impoundment (stormwater management pond, wetland mitigation pond, recreational pond) with an outlet structure.

Includes all components that may be part of the structure including inlet pipes/outlet structures/slopes & core walls/emergency spillways/sand filters/etc. The pond may or may not be regulated. The pond may or may not be classified as a dam. The pond may or may not retain water. Operation and maintenance is specific to the environmental regulatory requirements of the structure and to the safety/property damage potential downstream.

SWP

SECONDARY WATER PUMP: Used to pump either hot or cold secondary water. Typically to induction units.

SWT SEWAGE WASTE TANK: All septic and temporary holding tanks.

TCB

TIE CIRCUIT BREAKER: Draw out type circuit breaker that interconnects switchgear line-up's for enhanced reliability and redundancy. Tie breakers at the Central Substaion and East

Substaion operate in a normally closed configuration. Tie breakers that serve primary and secondary unit substations (double-ended loadcenters) operate normally open. Tie circuit breakers are rated at 15 kV, 5 kV, 480 volts, or 208 volts.

TCP

TRASH COMPACTOR: A machine that compresses solid waste or cardboard to a fraction of the original volume to permit more compact storage while awaiting pick-up. The machine may bag or bail the waste.

TMH

MANHOLE - TELECOMMUNICATIONS: Manholes used to support Goddard's communications network.

TOA TOASTER: A heating appliance used to brown bread, buns, bagels, etc.

TSC

TRAFFIC SIGNAL CONTROLLER: System used to control traffic at intersections. System includes the traffic signal controller, traffic signal poles and lamps, pedestrian crossing signals, etc.

UPS *

UNINTERRUPTIBLE POWER SYSTEMS: Equipment that provides continuous, no-break, conditioned power to critical loads (and some emergency lighting systems at GSFC) in the event of a power failure or power disturbance.

UPV

UNFIRED PRESSURE VESSEL: A non-fired tank containing compressed gas or liquid (Used only for miscellaneous pressure vessels which do not have a system-specific acronym). Includes compressed air receivers.

V *

VARIABLE FREQUENCY DRIVE: Motor controller that provides adjustable speed control for three phase motors.

VAE *

VALVE ACTUATOR (ELECTIC): A valve actuator that is operated by electricity. (Power Plants only).

VAV *

VARIABLE AIR VOLUME BOX: HVAC terminal unit that controls the amount and temperature of air supplied to zone(s); includes either pneumatic or DDC controls, may also include a reheat coil and/or a fan motor and/or an air filter. (Controls may be set to function as a constant volume box, but will still be numbered with VAV acronym).

VCB

VACUUM CIRCUIT BREAKER: 35 kV vacuum breakers which are the primary disconnecting means for the Central Substation (3ea) and the East Switchyard (3 ea.).

VVE

VARIABLE VOLUME EXHAUST BOX: Similar to VAV boxes except that they regulate the flow of exhaust air out of the room rather than supply air into the room. They include a Metasys actuated damper but no fan.

WAC

WATER COOLER: May be either a self contained drinking water cooler, or part of a system with a centrally located refrigeration unit from which drinking water is piped throughout the building to water fountains. A self contained unit will have a single GOMAR number, although it may include more than one fountain (i.e. one high and one low for ADA compliance), and may include a remote refrigerating unit (i.e. mounted above ceiling).

supplying only that unit. Central systems will have separate GOMAR numbers for the central refrigeration unit and for each fixture served (each fixture may be either a single fountain or dual high/low fountains).

WAS

WATER SOFTENER: Equipment designed to soften boiler make up water. Items were previously labelled as RWP (Condensate Return Water Polisher.

WCC

WATER COOLED CONDENSER: Is a component of a direct expansion split-system, containing the condenser; may also contain the compressor. Will be associated with another GOMAR equipment number (typically an AHU; could also be for a supplementary coil in an ACS, or for some other equipment type). For WCC associated with an AHU, use same as AHU number; i.e., WCC007 related to AHU007. For a WCC related to non-AHU, use the next available sequential WCC number.

WRM

WARMER: Electrically operated food warming equipment. Could be a heated holding cabinet, heating lamps, etc.

WEP WELL PUMP: A pump used to transfer water from a well.

WST WASTE STORAGE TANK: A storage tank for waste products such as motor oil or refrigerants..

WTF

WATER FILTER: Filters the water in building heating and cooling water systems, or within

Power Plant systems. In addition to replaceable filter element types, can include centrifugal separators, and strainers if associated with an entire system. (A strainer associated with a specific pump is included as a component of the pump GOMAR, not separately numbered)

WTS WATER TREATMENT SYSTEM: A self containing piece of equipment used to treat water.

WWT

WASTE WATER TANK: A storage tank used to hold waste water discharged from equipment prior to disposal via the sanitary sewer system or other method. Not for use on general waste water (toilets).

NOTES NOTES

2 O&M Manual: Y indicates that the unit is to be provided with an O&M Manual.

Only the main FZN panel requires a field tag. Zone Types are numbered in the MAXIMO database only.

Asterisk indicates this equipment has other than the standard (bldg/three-letter/three-digit) format. See 'FORMAT' tabs within this spreadsheet file for more information.

Asterisk indicates: Blanket piping system designations include related valves and miscellaneous equipment which do not have their own specific GOMAR equipment acronym and number. (For related items that have separate GOMAR acronyms, use those rather than the blanket system acronym). Blanket acronyms used with Building Number prefix apply to piping within that building. Blanket acronyms used with Site prefix "000" apply to site piping.