2,400+ Definitions
HVAC GLOSSARY
Every HVAC term, acronym, and industry phrase — defined in plain English.
HVAC API
An HVAC API is an application programming interface that enables…
HVAC App
An HVAC app is a mobile application that enables users…
HVAC Coordination
HVAC Coordination is the collaborative process of aligning heating, ventilation,…
HVAC Diagnostics Remote
HVAC diagnostics remote refers to the ability to perform system…
HVAC Drawings
HVAC Drawings are specialized technical documents that illustrate all components…
HVAC Industry History
HVAC Industry History documents the evolution from steam heating in…
HVAC Installation
HVAC installation is the complete process of placing heating, ventilation,…
HVAC Log Book
An HVAC log book records the complete service history of…
HVAC Predictive Maintenance
HVAC predictive maintenance uses data analysis and machine learning to…
HVAC Scheduling App
An HVAC scheduling app enables users to program heating and…
HVAC Specification
An HVAC specification is a comprehensive written document that details…
HVAC Submittal
An HVAC submittal is a collection of documents and product…
HVAC System Design
HVAC System Design is the comprehensive engineering process of determining…
HVAC Tune Up
An HVAC Tune Up is a focused service visit that…
Hybrid Heat Pump
A hybrid heat pump system combines both an electric heat…
Hybrid Inverter
A hybrid inverter seamlessly manages power from solar panels, battery…
Hybrid Solar System
A hybrid solar system combines grid connection with battery storage,…
Hybrid Ventilation
Hybrid ventilation combines natural ventilation with mechanical systems to optimize…
Hybrid Water Heater
A hybrid water heater combines heat pump technology with electric…
Hydraulic Balancing
Hydraulic balancing is the process of adjusting flow rates through…
Hydronic Balance Report
A Hydronic Balance Report documents water flow rates, pressure differentials,…
Hydronic Heating
Hydronic heating is a system that distributes heat through water…
Hydronic System
A hydronic system is an HVAC system that uses a…
IAQ Dashboard
An IAQ dashboard is a centralized display or software interface…
IAQ Procedure
The IAQ Procedure is a performance-based ASHRAE 62.1 compliance method…
IBC
IBC stands for International Building Code, a comprehensive model building…
Ice Machine
An ice machine is a commercial refrigeration appliance that automatically…
IECC
Definition The International Energy Conservation Code (IECC) is a model…
IECC 2015
The 2015 International Energy Conservation Code updated energy efficiency requirements…
IECC 2018
The 2018 International Energy Conservation Code (IECC) establishes minimum energy…
IECC 2021
IECC 2021 is the 2021 edition of the International Energy…
IEER
IEER (Integrated Energy Efficiency Ratio) measures air conditioning system efficiency…
Igniter
An igniter is an electrically heated ceramic element that reaches…
Ignition Control Module
An ignition control module is an advanced electronic component that…
IMC
The IMC is the International Mechanical Code, a model building…
Immersion Cooling
Immersion Cooling submerges entire servers or individual components in thermally…
In Duct Air Purifier
An in duct air purifier is an air treatment device…
In Row Cooling
In Row Cooling refers to cooling units positioned directly between…
Inches Water Column
Inches Water Column (IWC) is a unit of pressure measurement…
Inclined Manometer
An inclined manometer is a pressure measurement device with a…
Indirect Circulation System
An indirect circulation system pumps heat transfer fluid (typically antifreeze…
Indirect Fired Chiller
An indirect fired chiller uses a separate heat source, such…
Indirect Water Heater
An indirect water heater uses heat from a boiler’s heating…
Indoor Air Quality (IAQ)
Indoor Air Quality (IAQ) refers to the air quality within…
Induced Draft
Induced draft is a ventilation method where a fan or…
Induced Draft Cooling Tower
An induced draft cooling tower uses a fan mounted at…
Induction Unit
An induction unit is a type of terminal device used…
Industrial Heating
Industrial heating encompasses heating systems and equipment designed to warm…