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Old 07-26-2011, 08:00 PM   #31
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High pressure line (not hot)


But, unfortunately, IR's are not very accurate on copper lines. So while the line may be cooler then the outdoor temp. It may also be slightly warmer.

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Old 07-26-2011, 08:00 PM   #32
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High pressure line (not hot)


Whatever. Beenthere says is what you. Pay. Attention. To
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Old 07-26-2011, 08:03 PM   #33
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Quote:
Originally Posted by JJboy View Post
The temperature of the high line (1/4") was 76'f before the valve.

The temperature of the high line (1/4") was 109'f coming out the compressor.


LL Temp is 109F ......outside 87F
The line coming out of the compressor, is the hot gas discharge line.

If he is referring to the condenser as the compressor, then that temp is ok. But then what valve is he talking about. If
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Old 07-26-2011, 08:06 PM   #34
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High pressure line (not hot)


Quote:
Originally Posted by beenthere View Post
The line coming out of the compressor, is the hot gas discharge line.

If he is referring to the condenser as the compressor, then that temp is ok. But then what valve is he talking about. If
I dont think he about the unit to get these temp....i guess service valve
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Old 07-26-2011, 08:08 PM   #35
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Quote:
Originally Posted by JJboy View Post
I dont think he about the unit to get these temp....i guess service valve
Liquid line temp at service valve shouldn't be cooler then outdoor temp either.
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Old 07-26-2011, 08:08 PM   #36
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High pressure line (not hot)


Quote:
Originally Posted by JJboy View Post
The temperature of the high line (1/4") was 76'f before the valve.

The temperature of the high line (1/4") was 109'f coming out the compressor.


LL Temp is 109F ......outside 87F

When I said 109'f, thats was the line temp inside the unit thats outside.

Coming off what I called the compressor(not sure if thats the correct term)

But when I measure the temp.of the (1/4") BEFORE the service valve it was 76'f on the outside of the unit.
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Old 07-26-2011, 08:11 PM   #37
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High pressure line (not hot)


Fixed orifice or txv at evap
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Old 07-26-2011, 08:11 PM   #38
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Quote:
Originally Posted by beenthere View Post
But, unfortunately, IR's are not very accurate on copper lines. So while the line may be cooler then the outdoor temp. It may also be slightly warmer.
I used IR gauge and I also used clamp on meter, both were about the same ( 1 degree differance between both ).

I also used a cheap wrap around thermometer to test (about the same readings)

I used a regular digatl outdoor thermometer to measure outside air temp.
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Old 07-26-2011, 08:13 PM   #39
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Quote:
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Fixed orifice or txv at evap
How do I tell ?
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Old 07-26-2011, 08:16 PM   #40
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Quote:
Originally Posted by beenthere View Post
The line coming out of the compressor, is the hot gas discharge line.

If he is referring to the condenser as the compressor, then that temp is ok. But then what valve is he talking about. If

Let me ask you what the terms are for this.

What is the unit outside with the fan blowing called ?

What is the unit (BLACK ITEM) Looks like a 1 gallon paint can, called inside that unit that has the copper lines running to it. cold into it, then hot coming out of it.
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Old 07-26-2011, 08:20 PM   #41
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High pressure line (not hot)


What is the unit (BLACK ITEM) Looks like a 1 gallon paint can, called inside that unit that has the copper lines running to it. cold into it, then hot coming out of it. Compressor

What is the unit outside with the fan blowing called ? Condenser
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Old 07-26-2011, 08:35 PM   #42
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Ok let me rephrase what I measured.

Seems to be 2 differant answers here.

It was 85-87'f outside today.

The 1/4" line was 76'f just before the spot where you hook up the test gauges. And it was 109'f coming out the compressor into the coils of the condensor unit.

The 3/4" line was 61'f just before the spot where you hook up the test gauges. And it was 67'f just before going into the compressor inside the condensor unit.

Pressure's were 75 psi on the 3/4" line and 240 psi on the 1/4" line

One tech says it should be hotter on the 1/4"line just before the test gauge spot.

The other tech is saying the temperature is fine just before the test gauge spot on the 1/4" line.

Whats correct ?
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Old 07-26-2011, 08:46 PM   #43
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Post a pic of the unit with the access panel off. is there a liquid line filter drier in it.

The liquid line is too cool.
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Old 07-26-2011, 08:51 PM   #44
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Quote:
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Post a pic of the unit with the access panel off. is there a liquid line filter drier in it.

The liquid line is too cool.

I don't think there is a filter drier in there. I'll try to get a picture right now outside (its 9.50 dark outside right now) give me afew minutes to scare creatures away and find a light.
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Old 07-26-2011, 09:09 PM   #45
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High pressure line (not hot)


Some pictures..more to follow...

looks like no dryer installed (if it looks like an inline fuel filter)

http://www.freeimagehosting.net/ed506

http://www.freeimagehosting.net/c6fad

http://www.freeimagehosting.net/18d69

http://www.freeimagehosting.net/61913

http://www.freeimagehosting.net/3da60

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