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will r12 gauges work on r22

by Dion Larson Published 3 years ago Updated 3 years ago

R12 and R22 are both now banned by the EPA in the United States. Other more environmentally friendly alternatives exist, but even those cannot be changed in air conditioners or other refrigeration units with R12 without a thorough cleaning of the unit. Video of the Day Preparation Step 1 Get a vacuum pump.

Full Answer

How do you read R22 on a temperature gauge?

Add 15 to 25 degrees F to the outdoor temperature (say 90+15=105 and 90+ 25=115) and look at the TEMPERATURE information for R-22 on the gauge (green ring of numbers). THE HIGH SIDE NEEDLE SHOULD POINT TO A TEMPERATURE BETWEEN 105 AND 115 (in the green ring of numbers) AND THE PRESSURE IS READ ON THE BLACK RING OF NUMBERS FOR PRESSURE.

What is the difference between R12 and R22 refrigerant?

R12 and R22 are two refrigerating agents for air conditioning units. R12 was once used in many air conditioning units as a refrigerant or cooling agent. However, it was found to be a very bad gas for the environment. But R22 is almost equally damaging.

What should the evaporating temperature of R-22 be?

IF the return temperature is 75 the evaporating temperature of the R-22 should be between (75-40=35) and (75-35=40). THE LOW SIDE NEEDLE SHOULD POINT BETWEEN 35 AND 40 DEGREES (in the green ring of numbers) FOR R-22 AND THE PRESSURE IS READ WHERE THE NEEDLE POINTS ON THE BLACK RING OF NUMBERS FOR PRESSURE.

How to convert an existing air conditioner to R22?

Make sure your conversion kit includes one that is R22 compatible. Remove the existing expansion valve. Remove the existing drier, disconnecting the lines at the compressor. Pour isopropyl alcohol into the lines ones at a time. Blow air through the lines afterwards using the blowgun.

Can you use the same gauges for R22 and R410A?

R-22 and R-410A, while intended for the same type of appli- cations, are indeed very different refrigerants. Therefore, they cannot be mixed, and the equipment they are used in will be different.

Can you use R12 gauges for R134a?

Manifold Gauge Conversion Kit - R12 to R134a FJC 6025 R12 to R134a Manifold Gauge Conversion Kit Converts R-12 gauge to R-134A. Contains R-134A 90 degree Quick Couplers and Adapter for R134a Refrigerant Tank.

Do you need different gauges for different refrigerants?

Different Types for Different Work You need two, possibly three, sets of gauges depending on what you are doing. Some techs like to have one set for 410 refrigerant machines and another for R22 machines. However, we have so many different types of refrigerants now it's not practical to have a set of gauges for each.

Can I use R134a in a R22 system?

However, units made after 2010 can use R22 alternatives such as R410A, R134A, R407C, and R407A. These refrigerants cool just as effectively as R22 without the ozone depleting features, and they have an acceptable Global Warming Potential (GWP).

Are R12 and r134 fittings different?

R12 has threaded fittings (left) and R134a uses quick disconnect fittings (right). However, if you want to go the extra mile in preserving your car's originality and value (and you have additional money to spend) there a plenty of reasons to avoid doing this conversion.

Is R12 freon?

A lot of people have heard of Freon. The stuff your dad or grandfather put into his car, so the air conditioning worked. The stuff that is supposed to be bad for the ozone layer. But did you know that Freon is just a brand name for a chemical gas generically called R12 (CFC-12)?

How do you read AC gauges for R-22?

0:4412:06Tutorial on How to Use and Read a REFRIGERANT GAUGE SET!YouTubeStart of suggested clipEnd of suggested clipAll right I the outside is that pressure ring it's PSIG pounds per square inch each alright zero isMoreAll right I the outside is that pressure ring it's PSIG pounds per square inch each alright zero is actually zero psi G is equal to fourteen. Point seven psi a which is absolute.

Can I use car AC gauges on home AC?

No, they are not interchangable. The gauges are marked with specific temperatures and pressures that correspond to the refrigerant you're using. You can't check the charge on a home unit with an auto gauge set, and vice versa.

What does it mean when the Freon gauge in red?

0:120:58Why Did My A/C PRO Gauge Go Into the Red When I Connected It?YouTubeStart of suggested clipEnd of suggested clipMore than likely this is because the car and the AC system are not on you recharge the vehicle theMoreMore than likely this is because the car and the AC system are not on you recharge the vehicle the car needs to be on and the AC needs to be set to max cool with the fan speed on its highest setting.

What can you use in place of R22?

R410A as substitute for R22. In addition to R407C, the near-azeotropic mixture listed by ASHRAE as R410A is available and widely used for medium-sized capacities in air conditioning and heat pump applications.

Is R-22 Freon still available?

Is R22 refrigerant still available? R22 is no longer produced or imported into the United States, but it still exists inside some older HVAC units. If your unit uses R22 and runs out, HVAC technicians may still have access to the existing recycled or recovered R22 supply and can service your unit as normal.

What is a drop in substitute for R22?

Description. RS-44b (R453a) is the newest R22 drop-in replacement refrigerant in the U.S. market. RS-44b has been sold worldwide for the past 5 years, branded as RS-70 outside the US. It is the closest replacement to R22 that operates with very similar discharge pressure, cooling capacity and flow rate as R22.

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