How many types of HVAC maintenance are there?

Author: Judy Kuvalis  |  Last update: Tuesday, October 28, 2025

At Aire Serve, we categorize maintenance into four types: preventive, corrective, predictive, and proactive. Each type serves a unique purpose, ensuring your system operates smoothly for years.

What are the different types of HVAC maintenance?

There are three major types of HVAC maintenance programs: test and inspect, standard maintenance, and comprehensive maintenance.

What are the 4 types of HVAC systems?

There are four main types of HVAC systems. There are split systems, hybrid systems, duct-free systems, and packaged heating and air systems. Each of these types of HVAC units have pro's and con's, and knowing these factors can help you decide which is best for you.

What are the 4 phases of planned maintenance HVAC?

In more detail, let's look at the 4 phases of planned HVAC maintenance.
  • Corrective maintenance.
  • Preventive maintenance.
  • Risk-based maintenance.
  • Predictive maintenance.

How many types of AC servicing are there?

There are mainly three types of AC Services available in the Indian HVAC Market- Dry AC Service, Wet AC Service, & Hydro Cleen Technology. Dry AC Servicing involves cleaning and maintaining the AC system without the use of water.

5 Tips EVERY Apprentice Should Know!! HVAC Lessons

What does HVAC servicing include?

What Does an HVAC Service Call Include?
  • Check refrigerant levels.
  • Inspect the fins for any debris accumulation.
  • Lubricate the fan and other moving parts.
  • Check electrical connections for loose or worn-down wires.
  • Look for physical damage to the casing or internal components.

What are the 3 types of air conditioning system?

Table of Contents
  • Single Split systems and Multi Split Systems.
  • Ducted and Central Air conditioning Systems.
  • Water cooled systems.
  • Portable Air Conditioners.

What are the 4 cycle of HVAC?

Principles of Refrigeration

For this reason, all air conditioners use the same cycle of compression, condensation, expansion, and evaporation in a closed circuit. The same refrigerant is used to move the heat from one area, to cool this area, and to expel this heat in another area.

What are the three types of planned maintenance?

The Ultimate Guide to the 3 Types of Maintenance Strategies: Reactive, Preventive, and Predictive.

What all do HVAC technicians do?

HVAC technicians install, maintain, and repair heating, cooling, and refrigeration systems. Heating, air conditioning, and refrigeration mechanics and installers work on heating, ventilation, air conditioning, and refrigeration (HVACR) systems that control the temperature and air quality in buildings.

What is ahu in HVAC?

The air handling unit (AHU) is the heart of central air conditioning. It collects outside air and room air, removes dust and other particles from the collected air, adjusts the temperature and humidity and then supplies comfortable and refreshing air-conditioned air into the rooms through ducts.

How many parts of HVAC are there?

Air Handler

It contains several key HVAC components, including the blower, the blower motor, the air filter, and the evaporator coil.

What should be included in a HVAC maintenance contract?

Here are all the details you need to include in every HVAC maintenance agreement:
  • Business information. ...
  • Customer information. ...
  • Property address. ...
  • Maintenance schedule. ...
  • Scope of services. ...
  • Terms and conditions. ...
  • Invoice schedule and payment terms. ...
  • Legal requirements.

How much time does AC take for self-cleaning?

Many modern AC units come equipped with an auto-cleaning feature designed to remove dust, bacteria, and other contaminants from the system. This process typically involves the unit running a self-cleaning cycle, which can take anywhere from 30 minutes to a few hours, depending on the level of cleaning required.

What is considered a major repair in HVAC?

Question #1: A "major repair" under EPA's regulations would be;
  • Replacing a condenser coil.
  • Replacing a filter-drier.
  • Replacing a condenser fan motor.
  • Replacing a blower fan motor.

How many types of HVAC are there?

An HVAC system that stands for Heating Ventilation and Air Conditioning aims to make the indoor environment comfortable. HVAC systems are divided into four categories which come in different sizes and specifications that fit into your home or business.

What are HVAC stages?

Stage 1 of a heat pump operates at a lower, more energy-efficient setting for mild temperatures, while Stage 2 kicks in during colder or hotter conditions, providing higher output. Stage 2 offers quicker temperature changes but uses more energy, whereas Stage 1 offers quieter, more efficient operation.

What does HVAC stand 4?

HVAC stands for Heating, Ventilation, and Air Conditioning. Whether it's about heating your living space during chilly winter months or cooling it down on scorching summer days, HVAC systems are fundamental to ensuring a pleasant temperature and clean air.

What does annual HVAC maintenance include?

He or she will inspect your system for signs of leaks, problems with electrical connections and wiring, and efficient thermostat operation. The winter months require different maintenance options, such as checking the heating elements, the pilot and thermocouple, limit controls, burners and safety controls.

How much should HVAC maintenance cost?

An HVAC repair pro can recommend services based on your system. HVAC maintenance costs $250 on average, with a range between $100 and $650, depending on the HVAC type, location, and time of year. For a split AC and heating unit, you might spend up to $350 for routine maintenance.

What is HVAC preventive maintenance?

HVAC preventive maintenance helps keep your commercial HVAC system and its assets running efficiently and effectively year-round. This is when the system is cleaned, inspected, and may require parts updates. Without a preventative maintenance HVAC plan, the system could fail without warning.

What are the 4 major parts of air conditioning?

There are four major components of the air conditioning system. They are the evaporator, condenser, compressor, and expansion valve. Each of these air conditioner components functions in sync with each other and has a specific job to do, to keep your air conditioner running smoothly.

What is the best AC unit brand?

Top 5 AC Brands
  • Lennox. Lennox has a long history of innovation, introducing the first riveted-steel furnace in 1895 and the first air conditioner in 1952. ...
  • Carrier. Carrier is synonymous with air conditioning and is often credited with inventing the modern air conditioner. ...
  • Trane. ...
  • Rheem. ...
  • Goodman.

How many types of HVAC compressors are there?

Compressor Types

There are primarily four types of compressors used in the air-conditioning industry: reciprocating, scroll, helical-rotary (or screw), and centrifugal. The traditional reciprocating compressor has been used in the industry for decades.

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