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1) How do I know which refrigerant to use 2) How can I tell if the AC has the right amount of refrigerant

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ALL A/C units & you gave us nothing at all,
have the type of refrigerant on a label somewhere

You can only tell how much is in there by using
the proper manifold gauge set & using a temperture
& pressure chart, for each refrigerent type

I was sent to the a university for 3 weeks to learn
alternating current, such as you have coming to
your home or business,before I was allowed to
go to a refrigerent class that was a week or two

Still want to work on it?

Really fun stuff, but your not licenced, so you
can not buy ozone polluting freon

Posted on May 28, 2011

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1 Answer

Changing the ac compressor in my 2007 Saturn Relay, how do I do it?


Evacuate and recycle the old refrigerant. Disconnect the belt and hoses. remove the old compressor. Use an AC flushing kit to flush out the system. Install the correct oil in the new compressor. Use a vacuum pump to pull a vacuum on the entire system. Use a manifold gauge and refrigerant scale to add exactly the right amount of new refrigerant. Without those special tools, keep your mitts off!

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My Goodman condenser which was recently replaced is making a severe swashing noise when it stops. Like a back flush or something. Need to know if this standard.


Normally if it does not sound right, it is not right. By your discription it sounds like your compressor is having a problem with flood back caused by a txv not metering properly, or an overcharged system. You will need a tech who can determine superheat and subcool for your refrigerant system. Find a tech who can determine these values. Superheat and subcool is normally around 8 -12 degrees. Superheat is the amount of additional heat the refrigerant picks up in the evaporator once it is turned to gas and is needed to keep liquid refrigerant from flooding back to the compressor. Compressor are designed to compress gas not liquid. Subcool is the additional cooling refrigerant undergoes once the refrigerant turns back into into liquid in the conderser. Subcool ensures the refrigerant remains in liquid form until it reaches the metering device. Only liquid suppied metering devices will pass the required amount of refrigerant to achieve the rated cooing or heating rates. If it is liquid flood back, your compressor will be damaged and will need to be replaced. Hope this helps

Oct 07, 2014 | Goodman Manufacturing Goodman R410A 13...

1 Answer

Ho many pounds of LOW pressure refrigerant does the 2000 toyota sienna take.


If you are talking about the pounds PRESSURE (PSI), it depends on the ambient temperature. That information is what is on the dual set of gages that you see refrigeration techs using. If you are talking about the weight of the refrigerant to fully charge an empty system, there should be a sticker under the hood, near the AC system that tell you the type and how much to charge the system, it will also tell you how much and type oil to add. That all pertains to a completely empty system. The amounts specified by the Toyota are very important.
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ALSO, IT IS IMPORTANT THAT I TELL YOU AND THAT YOU KNOW THAT IT IS AGAINST THE LAW TO CONTINUAL RECHARGE AN AC SYSTEM THAT HAS A LEAK OF REFRIGERANT. THE LAW SAYS YOU HAVE TO CORRECT THE LEAK BEFORE YOU CHARGE THE SYSTEM.

Thanks for using FixYa.
Gaker

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1 Answer

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1 Answer

How much r22 charg in 1 ton split ac unit


What your asking is impossible to answer. True the charge goes up with the btu size but there is no set amount. To figure this out you need a couple of things.
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2. On the evaporator (inside) should also be a tag that will tell you how much the evaporator will hold.
3.Then you have to know the line sizes and also length to tell you how much refrigerant the line set will hold.
You add all these up and you will have the correct amount.
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1 Answer

My ac needs refrigerant


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May 09, 2011 | Heating & Cooling

1 Answer

A/C NOT BLOWING COLD


sounds like your refrigerant is low. to check this there is a cap on one of the ac lines take off the cap and put a gauge on it and that will tell you if it is low or not the gauge you can usually get with the refrigerant. if it has the right amount in it than the problem is with your compressor.

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3 Answers

Hi..i had to change a/c condencer, and the a/c compresser, both at the same time.how will i go about charging the system? do i need to add coolent too both ports? or just the low side.?


YOU TAKE TO A GARAGE LET THEM PUMP IT DOWN FIRST MAKE SURE YOU PUT THE RIGHT AMOUNT REFRIGERANT OIL IN COMPRESSOR.IT COME WITH SHIPPING OIL IN IT BUT YOU HAVE TO POUR IT OUT.PUT IN THE RIGHT AMOUNT OF REFRIGERANT OIL IN COMPRESSOR LOOK IN OWNERS MANUAL TO PUT IN THE RIGHT AMOUNT.NOW IF YOUR OLD COMPRESSOR SEIZED OR LOCKED UP THEN LET GARAGE FLUSH OUT METAL SHAVINGS OUT .IF YOU DONT FLUSH OUT SHAVINGS THE NEW COMPRESSOR WILL BE DESTROYED.ALSO YOU HAVE TO REPLACED THE ACCUMULATOR OR ORIFICE TUBE IF EQUIPPED.IF OLD COMPRESSOR DIDNT LOCK UP.PUT NEW REFRIGERANT OIL IN COMPRESSOR IT TAKE AT LEAST 1 OUNCE OF OIL BUT CHECK OWNERS MANUAL ALL VECHICLE HAS DIFFERENT SPECS.AFTER COMPRESSOR OIL BEEN PUT IN EVERYTHING ALL REFRIGERANT LINES TIGHT.TAKE VECHICLE TO A GARAGE THAT DO AIR CONDITIONER WORK.THEY HAVE TO USE A VACUUM PUMP TO PUMP DOWN THE AC SYSTEM TO REMOVE MOISTURE AND LEAK TEST THE SYSTEM WHILE IT PUMP DOWN.IF YOU DONT LET THE GARAGE PUMP DOWN SYSTEM. THE MOISTURE WILL FREEZE UP IN AC SYSTEM CAUSING POOR OR NO COOLING.THE GARAGE GOING TO CHARGE YOU TO PUMP DOWN AND CHARGE UP SYSTEM.IT WOULD BE CHEAPER TO DO THIS THAN TO BUY A VACUUM PUMP AND MANIFOLD GAUGE SET.WHEN DOING AC WORK YOU NEED SPECIAL EQUIPMENT AND TOOLS TO DO THE JOB OR THE AC SYSTEM WILL NOT WORK RIGHT.

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1 Answer

Need to know how much refrigerants needs to go into it


unless you have the expertise; the tools: i.e. a vacuum pump; gauge set and, recovery equipment; you should not attempt an AC recharge
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refrigerant is dangerous,please take your car to an AC professional

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