2,400+ Definitions
HVAC GLOSSARY
Every HVAC term, acronym, and industry phrase — defined in plain English.
critical point (refrigerant)
The thermodynamic state at which the distinction between liquid and…
Critical Zone
In a multi-zone HVAC system, the zone that requires the…
Cross Flow Heat Exchanger
A cross flow heat exchanger has fluids moving perpendicular to…
Cross-Contamination
In heat recovery ventilators, the unintended transfer of exhaust air…
Cross-Talk
The transmission of sound from one room to another through…
Crossflow Tower
A crossflow cooling tower directs air horizontally across falling water…
CSA C22.2
CSA C22.2 is the Canadian safety standard series for electrical…
Curb
A curb is a structural frame or raised base that…
Current Relay
A starting relay that senses the high inrush current in…
Cv Value
The Cv value is a numerical coefficient that quantifies the…
Cx Authority
The Cx Authority is the designated individual or firm responsible…