HVAC Terminology
p
- Programmable Thermostat
- PSC
- PSI
- PSIA
- PSIG
- Pulse With Modulation
- Purge Unit
- PVC
- PWM
r
- R-22 Refrigerant
- R-32 Refrigerant
- R-410A Refrigerant
- R-454B Refrigerant
- R-Value
- Radiant Flooring
- Reciprocating compressor
- Reclaiming
- Recovery Rate
- Recycling
- Refrigerant
- Refrigerant charge
- Refrigerant lines
- Register
- Relative Humidity
- Relay
- Return Air
- Reversing Valve
s
- Scheduled Maintenance
- Scroll Compressor
- Seasonal Energy Efficiency Ratio
- SEER
- Self-contained system
- Sensible heat
- Sensor
- Setpoint
- SilentComfort™ Outdoor Fan Motor
- SmartEvap
- Spine-Fin™ coil
- Split System
- Staging
- Static Pressure
- Sub cooling
- Suction Pressure
- Superheat
- Supply Air
t
- Thermidistat
- Thermistor
- Thermocouple
- Thermostat
- Thermostatic expansion valve
- Ton
- Ton Refrigerant Unit
- Transformer
- TrueSense
- Two-stage compressor
- Two-Stage Furnace
- Two-stage heating/Two-stage cooling
- Two-Stage Operation
- TXV
u
- U-Factor
- UL
- Ultraviolet
- Upflow furnace
- UV
- UV Air Purifier
v
- Vacuum
- Vacuum Pump
- Valve
- Variable Frequency Drive
- Variable Frequency Drive
- Variable Refrigerant Flow
- Variable Speed Motor
- Vent
- Ventilation
- Ventilator
- VFD
- VFD
- VOCs
- Volatile Organic Compounds
- Volt
- Voltage
- Volume Damper
- VRF
w
- Watt
- Watt:
- Weatherization:
- Wet Bulb Temperature:
- Wet Bulb Thermometer
- Wi-Fi Enabled
z
- Zone Controls
- Zone Damper
- Zone System
- Zoned HVAC
- Zoning
- Zoning System

