Regassing Your Air Conditioning Unit: A complete guide

Although relatively uncommon, re-gassing is one of the key processes involved with air conditioning maintenance and repairs. If installed correctly, an AC unit should not usually have to be regassed. However, older units or those that weren’t installed by a professional installer may need to be assessed and serviced. This involves checking for refrigerant leaks, fixing a leak if present, and replacing refrigerant if required.

AC refrigerantAlthough a properly installed AC unit should not leak any refrigerant, it may need regassing at some point. Here’s what you need to know.

What Is Air Conditioning Refrigerant?

Simply put, the refrigerant is the substance that ‘conditions’ the air it blows. Without refrigerant, air conditioners, fridges or freezers wouldn’t exist. It is a compound, either fluid or gas, that creates hot and cold air when combined with compressors and evaporators.

Over the years, the common refrigerants used for air conditioning have changed in favour of new developments. Older refrigerants may be chlorofluorocarbons or hydrochlorofluorocarbons, whereas newer refrigerants are hydrofluorocarbons, which are safer for the environment and offer greater efficiency.

How Does It Work?

In air conditioners, the refrigerant is housed in copper coils. Here they absorb heat and are transformed from a high-pressure gas to a low-pressure liquid. The indoor unit delivers this hot air to the outdoor unit, where it is exhausted.

The refrigerant then cools down, returning to its low-pressure gas form. A fan then blows air onto the cool coils, which then cools the air. This is distributed via the indoor unit. This cycle continues as needed.

Why your unit might need regassing

Air conditioning units shouldn’t have to be regassed if they’ve been installed properly. Professional installers use special ‘flaring’ tools to make extremely tight connections. The pipes used are copper, which is not porous and won’t leak. After installed, the system will then be tested to ensure it is stable and will hold for its lifetime.

The only reason that a unit may need to be regassed is if the pipe connections are not flared or tightened properly, or if the pipes are damaged somehow during their lifetime. However, if you use a trustworthy, professional installer like HunterCON, you can be assured that you will never have to worry about regassing. Not only that, but you’ll be put on our 5-year installation warranty plan. Even if something happens to your AC unit, you won’t have to worry.

How Do You Know If You Need To Upgrade Your Refrigerant?

You will probably want to replace your refrigerants if they’re outdated. How do you know? Head outside and take a look at the exterior unit. If it is labelled R12 or R22, it’s time to have your refrigerant replaced. These substances are older and are known to contribute more to the greenhouse gas effect. They’ll also make your AC unit less efficient, which means pricier energy bills. The R22 started being phased out in 2010 and R12 was phased out in the 1990s. Hydrofluorocarbons (HFCs) like R410A and R134 is the standard today.

Contact Us Today

Looking for an air conditioning installation specialist in Sydney? Give us a call today. With over 9 years of experience under our belt, we pride ourselves on providing the highest quality of fast and efficient service. Our operations span the greater metro area, including the Eastern Suburbs, Lower North Shore and South West. We always respond quickly and aim to be on-site as soon as possible.

Check out some more AC tips below:

AC filters: A guide to cleaning and replacing

5 telltale signs your air conditioner needs replacing

Our guide to air conditioning service and maintenance

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