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  #1  
Old 6/4/06, 9:43 PM
Peter Foxe Smothers's Avatar
Peter Foxe Smothers Peter Foxe Smothers is offline
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Default HoT

From this morings inspection... 2 heating and air units, both functioned well. The pictured unit was very hot, both on the fan exhaust air and on the actual unit housing. 9:00 AM inspection only 89 degrees and the other unit was in the 90's temp wise. The pictured unit was 127.. Thoughts, comments.. problem, no problem and lastly what would cause it to run this hot..
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  #2  
Old 6/4/06, 10:01 PM
jmcclure1 jmcclure1 is offline
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Default Re: HoT

If that compressor is runing low on freon and about to go into a thermal overload or is in overload you might not know if you don't put gauges on it.
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  #3  
Old 6/4/06, 10:09 PM
Jae Williams Jae Williams is offline
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Default Re: HoT

Cool...



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  #4  
Old 6/4/06, 10:16 PM
Peter Foxe Smothers's Avatar
Peter Foxe Smothers Peter Foxe Smothers is offline
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Default Re: HoT

Quote:
Originally Posted by jmcclure1
If that compressor is runing low on freon and about to go into a thermal overload or is in overload you might not know if you don't put gauges on it.

What is thermal overload?



Foxe Smothers ( Owner / Inspector )
Pelican State Inspection
Your Best Choice for Home Inspection in the Shreveport & Bossier City Area!


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  #5  
Old 6/4/06, 10:25 PM
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James R. Lilly James R. Lilly is offline
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Default Re: HoT

I wouldn't worry about a temp like that. Was the suction line cold? The temperature you read could be easily be generated by a unit under load working normally. Was the coil dirty?
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  #6  
Old 6/4/06, 10:28 PM
James R. Lilly's Avatar
James R. Lilly James R. Lilly is offline
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Default Re: HoT

Here is a T and P chart
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  #7  
Old 6/4/06, 10:30 PM
jmcclure1 jmcclure1 is offline
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Default Re: HoT

I worked on a AC the other day it looked like the line was sweating and cool. However it was really hot out the line was really trying to freeze up because the compressor was out.
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  #8  
Old 6/5/06, 12:42 AM
David A. Andersen, TN HI# 40's Avatar
David A. Andersen, TN HI# 40 David A. Andersen, TN HI# 40 is offline
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Default Re: HoT

What causes high discharge air temp from a condenser?

Reduced air flow. Dirty coil (even if it looks clean, it's dirty).

What should the temp split be on a condenser?

There are a bunch of "temp-split" guys out there.
30 degree delta T ?

Why is the motor heating up?

Your trying to cool it with 127 degree air.

Quote:
I wouldn't worry about a temp like that.
I think there is something to worry about with a 37 degree temp split between the two units. One of them are off.

If you didn't use an IR Thermometer, you would likely find the temps even higher! I think what you are seeing with the IR thermometer is a good indication that this needs to be serviced.
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  #9  
Old 6/5/06, 1:12 AM
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James R. Lilly James R. Lilly is offline
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Default Re: HoT

I would never use an IR to take a temp from a condenser. A stick thermometer or a digital thermister is the way to go. We can't be sure 127 is the true temp he was reading. We really can't troubleshoot the system from our computer chairs. We don't have enough info.
If I had suction and discharge pressures, temp readings from liquid and suction lines, indoor and outdoor ambient temps I could.
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