Why Matching Split-System Units Is a Must, After the Storm or When Replacing Parts

There are usually two major components required for matching split-system units for air-conditioning, the outdoor and indoor coils. These are designed to act as one efficient whole, making it possible for the machine to provide the most efficient performance possible.

The fact that the indoor and outdoor units work together means that they must be treated as one machine. If your indoor unit goes out, you shouldn’t just replace it and leave the outdoor unit alone. Replacing only one “side” of the A/C can cause an imbalance. It can be tempting to only replace the unit that has the problem.

It’s important to replace both parts of a split-system unit after they’ve been damaged in a storm or broken due to age and overuse. The system might still be able to operate with one new unit and one old unit, but you won’t get the desired performance. It’s sure to be less efficient. Unmatched units most commonly cause great stress for the cooling system and can lead to the entire system giving out. This is the last thing you want to have happen during the dog days of summer.

Another issue with not matching split-system units is the difference in refrigerants. Today’s A/C systems use hydrofluorocarbons, or HFC, which do not deplete the ozone layer. This newer refrigerant takes the place of the older, chlorine-releasing R-22, although the two can’t be mixed. This makes having two separate sides with two different refrigerants destined to fail.

Replacing both units in an air conditioner is the only way to go. Always make sure that your units are balanced and working efficiently. If they’re not, you’re wasting money and may be in for a rude awakening.

For more information about matching split-system units in your home, contact the pros at Preferred A/C, Inc. We’re proud to help homeowners in and around Palm Beach.

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