Plumbing
Fire Suppression
Heating
AC/Refrigeration
Electrical
100

The category of drainage water from a kitchen sink

What is Black Water

100

An exterior location on a building for fire fighters to attach their hoses 

What is a FDC, Fire Department Connection

100

CUH

What is a Cabinet Unit Heater?

100

A heat rejection device in an AC system that mixes air with cooling water to reduce the temp of water and physically remove the heat from the system into the atmosphere.

What is a Cooling Tower?

100

This electrical wiring device used for controlling flow of circuits to loads

What is a switch?

200

Uses hard 90 degree turns, can be used to throttle flow, typically in water or gas supply lines.

What is a ball valve

200

A vertical piping system intended for hoses to be connected to at various locations within a building

What is a Standpipe or Riser

200

A 2 pipe system which has a supply and return line run in parallel through the system to help control the balance in the system - first unit supplied is the last unit returned.

What is a Reverse Return System?

200

In an absorption chiller, where the heat source enters the system, boils the diluted solution and separates it into refrigerant vapor and concentrated absorbent.

What is the Generator?

200

A system of electrical conductors in a generating or receiving station on which power is concentrated for distribution. Typically used for high current power distribution.

What is a Bus Bar?

300

Prevents backflow, requires pressure from fluid to allow mechanism to open

What is a check valve

300

This division is where you would find specifications for the Fire Alarm

What is Division 28?
300

A mechanical component in a steam heating system that recovers heat that otherwise would be lost through the system - to preheat the boiler feed water.

What is an Economizer?

300

In an absorption chiller, this uses high pressure liquid refrigerant to absorb heat in the chilled water being recycled from the building.

What is the Evaporator?

300

This is the measurement of brightness of a lamp.

What is Lumens or Footcandles?

400
Allows an engineer to properly size the drainage and vent piping.

What is a DFU (Drainage Fixture Unit)

400

Water, Foam , Gasses and Dry Chemicals

What are Fire Suppression Mediums?

400

Regulates air flow on an exterior wall - usually for exhaust systems.

What is a Louver?

400

In an absorption chiller, this turns high pressure refrigerant into high pressure liquid and rejects heat from the system through the cooling water.

What is a Condenser?

400

The device that converts DC to AC Power.

What is an Inverter?

500

The 4 main types of plumbing systems

Water Supply, Storm, Sanitary, and Natural Gas

500

A device near a building entrance to indicate the location of a fire within a building - often linked with building communication systems.

What is an Annunciator Panel?

500

This device picks up heat that would typically be exhausted out of a building and uses a heat exchanger to transfer that heat back through a forced air system.

What is an Energy Recovery Ventilator - ERV

500

In an absorption Chiller, this enters the chiller in the absorber, pulls heat out of the air conditioning system, exits through the condenser and rejects that heat into the atmosphere.

What is Chilled Water?

500

This distribution of AC power using a system in which all voltages of the supply vary in unison - voltages peak twice per cycle in this system so the power is not constant.

What is Single Phase Electrical Power.

M
e
n
u