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How to recharge a Comfortmaker 10 A/C with R22 refrigerant

Looking for instructions on how to recharge a Comformaker 10 A/C system with R22 refrigerant.

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Call an HVAC service company. You can't even buy R-22 without an EPA card. And you'll need to proper set of gauges to read the high and low side pressures and, to do it right, be able to compute the dry/bulb/wet bulb temp to determine the proper charge with a charging chart.

Posted on May 26, 2010

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Is it better to by air conditioners with R - 410 GAS OR R - 22 GAS

R410 units are cheaper now but not as effecient as R22, also R22 is much more expensive and most likely you would have to use R22 a to recharge unit if it as allowed where you live .

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Where can I find the specs for an earlier Goodman heat pump?

You say 2 to 3 years... I'm assuming the unit is older than that. Especially being r22. What about the first 10 years??? Normally you will get 400 to 500 sqft per ton of cooling, but, that depends on heat load calculations. If the unit wasn't big enough you would have had this issue 10 years ago, not when the system kept running low on refrigerant. At first guess I would say a 2 ton unit is not big enough but if it worked fine for 10 years...wuth all that in mind, if it were me, (a seasoned professional) I would spend 1800 to fix my 15 year old r22 unit before I spent $4000 on a new r410a piece of junk. Best Wishes!!

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I have a Haier dehumidifier Mod 39R131F that is two years with 100 total hours that does not work. The compressor is humming normal but the in and out R22 copper lines remain at room temp. Under the...

Many of these consumer units use low grade copper for their refrigeration connections. The oil is a sure fire indicator of your seemingly correct diagnosis. Unless you have the proper refrigeration tools to repair and recharge the unit it may not be cost effective to try for a repair, as if this is the issue another leak is likely to occur. Many of these units come with 5 year compressor warranties though, so a quick check to make sure the leak is in the refrigerant piping and not on the compressor itself may be worthwhile. If your warranty has not run out it could be beneficial to find the exact source of the leak.

Sep 25, 2011 | Dehumidifiers

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Not building up much water in the bucket set at 35 sometimes 50 small amount of condensation on top of machine

its low on refrigerant,this is normal after about 2-3 years use,it costs about $50-$125 to evacuate old refrigerant and seal and recharge system with new proper amount of refrigerant being it R134a or R22 freon

Aug 01, 2011 | Kenmore 54501 Dehumidifier

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Could I switch the refrigiant R22 in my PAC160 to the new refrigiant

Yes, you can. As a matter of fact, R22 has been banded by the EPA. The new refrigerant is R134a. However, any remaining Freon in the compressor will have to be evacuated and captured, before recharging the system with R134a.

Jul 19, 2011 | DeLonghi Heating & Cooling

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I have a Mitsubishi MS-XV07UV air con. unit - Have asked a local company for a price to check gas levels and re gas if required - as it uses R22 refrigerant he says it cannot be done is this correct ?

No. The pressure can be checked, regardless of the refrigerant type. But, if it needed to be recharged, the existing R22 Freon Gas would have to be evacuated and properly disposed of and the new, approved type R134a. would have to be installed.

Try contacting another service company and see if you get the same answer as the first.

Jun 14, 2011 | Heating & Cooling

1 Answer

I have a model 579 series Duo Therm airconditioner and would like to know how to add freon to it. Blower works fine but does not seem like it gets very cold. My brother in law has the necessary tools and...

Bill, the compressor is recharged just like an automobile's AC unit. However, R22 is very, very expensive and is not required. R14 is now the refrigerant of choice. Plus, it's far less expensive than the old R22 (which is illegal in most places, except in certain applications).

If your brother has all the equipment, like you said he does, there's no need for me to go through all the steps necessary to drain and capture any remaining gas in the system and how to safely recharge the unit. Because he probably already knows all of this. But, hopefully, I did save you some money on the refrigerant gas. Which you can buy from any auto parts store.

Hope this helped you. Please let me know.

Jun 13, 2011 | Heating & Cooling

1 Answer

Where do you recharge the AC with r22?

Most rooftop RV units do not have service ports installed. You would have to get line tap valves to install in the system. The next problem would be getting some R22. Unless you have and EPA CFC certification you cannot buy R22.

Sep 25, 2010 | Coleman Mach III Air Conditioner

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Air conditioner is not blowing cold air

It's possible that you need more refrigerant. There are are gauges/testers available at hardware/auto parts stores to determine refrigerant levels. The problem is easier to deal with if your talking about a car. If the AC unit is for a house, it would require a service man to look at it since they won't sell R22 to unlicensed individuals.

If a quick refrigerant recharge doesn't work you're looking at more costly problems like an AC compressor failure which isn't a do-it-yourself type of repair.

Good luck

Aug 27, 2009 | Heating & Cooling

1 Answer

I accidently added 12 oz of r410 to a r22 system,

Do a triple evac. Reclaim, flush with r22, reclaim, flush with r22, reclaim, flush with r22, reclaim. install afilter drier. Evac down to at least 200 microns. Recharge. you should be ok.
My concern would be disposing of the old "now blended" refrigerant

Feb 25, 2009 | Goodman Heating & Cooling

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