rating icon

Can I Mix Refrigerants in my AC?

mix refrigerants

You are wondering if you can mix different types of refrigerants in your air conditioning system. With the R22 phase out in 2020 due to its environmental impact, this is a common question for those looking to upgrade their system or change the refrigerant in their system. The answer is no, refrigerants should not be mixed. There are several reasons why mixing refrigerants should not be done. At LA Construction, Heating and Air we do the right thing for our customers which means never cutting corners.

Why Would a Contractor Mix Refrigerants?

There are a couple of reasons why a technician or contractor may mix refrigerants in your AC system. One could be due to cost, as a jug of R22 could cost as much 3-4 times that of other refrigerant types. Another reason could be due to a technician being misinformed, failing to realize that they should not simply “top off” a system with a replacement refrigerant without checking the refrigerant type. The correct way would be fully recover, evacuate and then replace the refrigerant entirely if using a replacement refrigerant. Before you agree to ac repair, be sure to check what refrigerant they will be using for your AC system.

What Happens to Your AC System if You Mix Refrigerants?

Mixed refrigerants can cause increased system pressures and temperatures changing them for the worse. This can result in ineffective compressor cooling and possible compressor damage, ineffective cooling, and metering device malfunction. Different types of refrigerants are not meant to be mixed. In order to properly reach the correct refrigerant charge the refrigerant’s respective pressure –temperature chart is used. If refrigerants are mixed there is no chart to refer to. This means the refrigerant cannot be properly charged resulting in overheating and reduced system efficiency and lifespan.

The AC System May Overheat

If you mix refrigerants your air conditioning unit may overheat. Like mentioned above, different refrigerants have different sitting temperatures. Like oil and water different refrigerants do not mix, so you have different temperatures cycling through your system. This can lead your AC system to overheat and a burnt motor, a costly repair.

AC Inefficiency

Mixed refrigerants cause your HVAC to work harder to cool your home resulting in a loss in AC efficiency. This will also lead to an energy cost increase.

Compressor Damage

With mixed refrigerants your AC is more susceptible to potential damage, including damage to your compressor. This is a result of unpredictable temperatures and pressures as well as a potential loss of proper oil return to the compressor adding extra strain to your compressor. The different pressure points can also push on the coils leading them to become misshapen and cause them to burst.

Against the Law

Due to the phasing out of R22 in 2020, it is illegal for a contractor to mix refrigerants. Once mixed, the refrigerant can no longer be used and must be incinerated. While it is unlikely to be prosecuted by the EPA for this, it is not a great idea. When refrigerants are not mixed they can be reclaimed and reused. Keep in mind that mixed refrigerants are not only a hazard to the environment but also pose a safety hazard to technicians.

Contact LA Construction, Heating and Air

If your unit is not cooling as well as it should contact us today online or by giving us a call 818-341-3406. Your AC may not be cooling as effectively due to low refrigerant levels. Our technicians follow guidelines and never cut corners ,they are here to help with your heating and air conditioning needs.

Can I Mix Refrigerants in my AC? Related Posts:

Our Services

Air Conditioning Installation

Tired of your AC system conking out on you at the worst moments? Fortunately, we have been operating in the Los Angeles area for years and can install virtually any type of AC system in your home, office or commercial space. Selecting the proper residential and commercial air conditioning systems combined with proper HVAC installation will ensure optimum performance and efficiency.

Air Conditioning installation
Furnace replacement installation los angeles

Heating Installation

We specialize in installation of new and replacement of existing furnaces of all major brands and models.  Let our heating specialists help you reduce your heating costs and choose the right furnace products. Our years of experience and many satisfied customers in Los Angeles and San Fernando Valley is your assurance that we can help you. All our furnace installations are covered by our warranty.  Call us today and we will provide you with a free estimate.

Air Conditioning Repair

At home or at your workplace, there's always the potential for sudden HVAC operating failure and the need for immediate HVAC repair. We'll put you back into the comfort zone ASAP. Our technicians are experienced, EPA certified, trained, background checked, drug tested, Workers' Compensation insured, uniformed, professional, and honest. They will diagnose your system and provide you with a written estimate for repairs.

AC service technician with gauges
heating repair furnace service with technician

Heating Repair

Our furnace repair technicians are trained and equipped to handle a majority of required furnace repairs right on the spot. First of all, the service technician will evaluate your furnace, determine it's age, inform you if your unit is still under manufacturer's warranty and present you with a written estimate for repairs.

Air Quality

Whether you're at home or at work, your health and comfort can be affected by poor air quality. And, the air quality is affected by the air temperature, the humidity, the quality of ventilation and any contaminants or irritants like indoor pets, pollen, dust mites, cleaning products, lead, Formaldehyde and Asbestos, Poor Air Flow, mildew and mold. Poor air quality can cause more than slight discomfort - much more!

air quality solutions for residential and commercial customers in los angeles
Heating Air Conditioning maintenance in Los Angeles

Maintenance

As Benjamin Franklin said, an ounce of prevention is worth a pound of cure. Same idea applies to your central heater and air conditioner maintenance.Think of it as an oil change for your auto, which improves your car's engine performance, maximizes your gas millage and minimized down time by avoiding unnecessary repairs.

What our clients say

Click To Schedule Your FREE Estimate Today!

Shape- Social Media IconShape BG CTA

New In Our Blog

AC Replacement Financing in Los Angeles

Get the new AC system you need in Los Angeles without breaking the bank! Explore our financing options for residential AC replacements, including potential interest-free plans.

Spring in LA: Best Time for Heat Pump Installation

Upgrade your HVAC in Los Angeles this spring with a cost-effective heat pump! Explore the benefits of AC replacement with a dual-function system. Contact LA Construction, Heating and Air for a free quote!

Smart Thermostats for Commercial Buildings

Discover how smart thermostats can revolutionize your commercial building's comfort and drastically cut energy waste. Explore key features and benefits for LA businesses.

Commercial AC 101

LA business owners: Learn more about commercial AC! Our guide explains key terms to help you manage your system effectively in the Los Angeles climate.

How to Improve Indoor Air Quality this Spring

Breathe easier this spring! Learn how your HVAC system and other strategies can improve indoor air quality. Reduce allergens and create a healthier home environment. Contact LA Construction for expert service.

Woodland Hills Spring HVAC Check

Don't wait for summer heat! Discover essential HVAC spring check-up tips to fix problems early. Save money and avoid breakdowns with proactive maintenance.

We Install and Service All Major Makes and Models