very high head pressure


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Old 01-29-08, 01:10 PM
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very high head pressure

question: a 3 ton condensing unit with a new compressor, clean coils etc... has a high head pressure at 550psi. is the compressor bad?
 
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Old 01-29-08, 02:24 PM
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It will be! What is the low side????
 
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Old 01-29-08, 02:31 PM
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Wink

You sure you dont have R410a??? How do you know this are you EPA??? then put the gauges on it you would know what is wrong. what about noncondensables.
 
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Old 01-29-08, 03:02 PM
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Yikes!

Who checked this charge? Is this a new install? If so, call the installing dealer back ASAP.
 
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Old 01-29-08, 04:21 PM
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low side is holding at 70lbs

Originally Posted by airman.1994
It will be! What is the low side????
70 lbs on the low side, not cooling at all, high side lines are extra hot to the touch, top of compressor real warm also.
 
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Old 01-29-08, 04:25 PM
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r-22

Originally Posted by Ed Imeduc
You sure you dont have R410a??? How do you know this are you EPA??? then put the gauges on it you would know what is wrong. what about noncondensables.
r-22, yes on the epa, and I put gauges on it and those are the readings I am getting on a brand new comp. I am just curious as I have not seem this happen before.
 
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Old 01-29-08, 05:06 PM
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You put in the compressor? (just compressor or whole unit?)

You did the proper steps of install/charge of the system?
 
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Old 01-29-08, 05:44 PM
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To be clear we do not offer sealed system advice here.

Regardless of being EPA or Provincially certified you need a considerable amount of expensive equipment that usually only someone working in the field will have.

I would encourage you to call a certified repair person on this.
 
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Old 01-29-08, 06:04 PM
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proper steps

Originally Posted by Jay11J
You put in the compressor? (just compressor or whole unit?)

You did the proper steps of install/charge of the system?
proper install, 45min vaccum, initial charge, new filters, etc...
just replaced the comp. only.
 
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Old 01-29-08, 06:08 PM
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equipment?

Originally Posted by GregH
To be clear we do not offer sealed system advice here.

Regardless of being EPA or Provincially certified you need a considerable amount of expensive equipment that usually only someone working in the field will have.

I would encourage you to call a certified repair person on this.
I AM A TECH. do work in the field and have all the EXPENSIVE EQUIPMENT. just cant figure this one out.
 
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Old 01-29-08, 06:24 PM
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Originally Posted by ronrogers
proper install, 45min vaccum, initial charge, new filters, etc...
just replaced the comp. only.
45 min??? Time to call a tech!
 
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Old 01-31-08, 07:29 PM
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sounds like the compressor is doing excellent. What brand/model number is the unit and is it a heat pump?
 
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Old 02-01-08, 04:28 AM
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We go out of our way to help folks with ALMOST any problem with their homes and equipment however we do not offer or promote the dispensing of advice on sealed system repair.

Here is a sticky at the top of this forum topic that explais this quite
clearly.
 
 

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