HVAC 1
If an MAU isn't working, a building may experience this, making doors hard to open.
Negative Pressure
This tank stores compressed air to prevent the motor from constantly cycling.
Receiver Tank
This software platform is the industry standard for 3D Building Information Modeling
Revit
This unit measures electrical resistance.
Ohm
This flexible plastic tubing has largely replaced copper for domestic water lines.
This tool is used to measure air velocity in a duct
Anemometer
This type of MAU uses a heat exchanger to keep combustion gases separate from the air stream.
Indirect-Fired Unit
This is the term for the "skin" of the building, including the roof, walls, and windows.
Building Envelope
This device allows you to adjust the speed of an AC motor.
VFD
This type of valve uses a round disc to stop flow and only requires a 90-degree turn to close
Ball Valve
This device in a duct system opens and closes to control the volume of air
Damper
This type of fan moves air perpendicular to the shaft.
Centrifugal Fan
This document identifies every piece of equipment, such as pumps or RTUs, by a specific tag number.
Equipment Schedule
What is the calculation for power in a 3 phase system (using volts and amps)
This tool creates a watertight connection on copper without the use of a torch or solder.
ProPress
This section of an RTU uses outdoor air to provide "free cooling" when ambient temperatures are low.
Economizer
This mechanical safety device is designed to snap or "fail" first if a machine jams, protecting the expensive motor.
Shear Pin
: This term refers to the total weight of a building's structure, including fixed equipment like chillers and boilers.
Dead Load
This component stores electrical energy in an electric field.
Capacitor
This material is used to seal the threads on a pipe to prevent leaks.
Teflon tape (or pipe dope)
This type of cooling tower air flow design moves air horizontally across the water.
Crossflow
This instrument measures the rotational speed of a shaft in RPMs.
Tachometer
Which Inventor constraint is used to make two lines stay on the same infinite line without necessarily touching?
Collinear Constraint.
What is the phase-to-neutral voltage in a 3-phase system where the line to line voltage is 480V
~277V
This specific backflow preventer is required for high-hazard connections like chemical mixing vats or boiler feeds.
What is an RPZ