A/C Receiver Drier HELP Fast!

[280~Master]

Ok I have the york dealer installed A/C system. Was wondering my receiver has in and out on the barbed tube ends. What way do I place it. Does the inside face the condencer and the outside face the evaporator or Does it go the other way around?

The compresor pushes into the condencer and then out to the drier then out to the expanstion valve then into the evaporator then back to the compressor. Is this right?

Another quick question.

What would cause the system to hold to much presure? Like 100PSI instead of 25 to 30 PSI.

untitled.bmp

[hls30.com]

Did you add to the low pressure side? It is labeled the suction side. If you tried to force freon in to the high pressure side you might get something like that-also have you verified the compressor. If you mix freon types(more improtantly the lubricants they hold) you could cause the compressor seals to distort...

Was the system running when you were trying to charge it-sounds like you were fighting the .

We have at least one AC guru on the board, I am sure he will chime in...

Will

OOPS, usually the receiver/dryer does have an intake and "exhaust" labeled.

Look on the sides, top and bottom for an arrow.

[280~Master]

I see the in and out on the drier. I am wondering how it goes on there. I did charge it from the low side. I know its the low due to my compressor saying SUC on one valve and DIS on the other valve. I ended up getting a charge on it but it went to about 100PSI and then POP goes the line headed into the evaporator right before the expansion valve. I am wondering if my expansion valve is broke. I did get cold air for about 1 minute or so before the line poped. Glad I have new extra high pressure steel braided lines for all this.

[hls30.com]

sounds like you found the problem. Like you really needed an excuse to use the new lines...just like I would....

Will

[280~Master]

Is there an A/C person that has some help for me?

[sblake01]

Are you charging from a manifold or one of those cans with an inline guage? I'm just trying to establish how you arrived at that pressure reading. Anything over about 60 on the low side is going to blow something. Luckily it was a hose and not a compressor seal or the evap. itself.

[280~Master]

Inline

Wish I had a manifold set. I put two cans in and it ran fine and got cold for about a minute and then it went POP. I am still wondering which way the drier should go. Should the outlet side of the drier be going to the intake hose of the evaporator? If so I did have this backwards while doing this. Should have checked on it first instead of trusting the way it was installed by the PO.

[sblake01]

The hose to the inlet side of the receiver/drier comes from the condenser. The hose from the outlet side goes to the expansion valve. If you are hooked up like the diagram you posted, you're okay. Was there any refrigerant in the system before you put the two cans in? What kind of refrigerant are you using? Will touched on the problems that mixing refrigerants can cause but it sounds to me like you simply overcharged it. If you got cold air for a minute, as you said, I don't think you hurt anything but the hose. Pressure will generally seek the area of least resistance, in this case 30+ year old hoses. Once you replace the hoses, do you have any way to pull a vacuum on the system before you charge it again?

[hls30.com]

I have a set of manifold gages and a vacuum pump available.

Will

[280~Master]

Will,

I am going to take you up on this offer sometime this week or first thing next week.

[280~Master]

So I reversed the way the receiver/drier was facing and replaced the busted line with some steel braided line and recharged the system to see what would happen. Well to my suprise it worked. :eek: Not the coldest A/C I have ever felt but I got to ride around with the windows up today in 95 Degree weather with out breaking a sweat. So far so good, I would like to thank those who offered help in this time of need. Now to just tint the windows :devious:

[sblake01]

What refrigerant are you running in it?