Post a reply to the thread: Display Freezer High Super Heat
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Originally Posted by rayr X2 You can’t... My thermocouple was not attached correctly.
Originally Posted by Capz How can you possibly have 90F superheat? On a working freezer? X2
Originally Posted by Snapperhead im curious about the outcome .... I know this is an old thread, but I wanted to put this to bed... Thermocouple was not making a good contact…I also recalibrate all my tools... I replaced the compressor. Unit has been running without any problems since then. Thank your feedback.
im curious about the outcome ....
Originally Posted by eddiegoodfellar where did u check the superheat? About 10 inches from compressor suction line.
where did u check the superheat?
Originally Posted by Phase Loss Did you put your clamp on the pipe? or on the insulation? I'm not that bad. ... pipe. I'm going to recheck calibration later today.
Did you put your clamp on the pipe? or on the insulation?
I was using a calibrated SMAN3. The Clamp may have been loose .
Originally Posted by Tbone39 Since the unit is working now, do I go back, recover, pressure test, evacuate, and weigh in charge. Or should I just leave it since it is operating properly (for now). I am trying to be proactive. If your customer wants to pay for it, go right ahead. Otherwise hope for the best. As far as the SH, first I'd calibrate your thermometer and gauges because somethings not right. You're telling us you essentially have a 70degree suction line at the pump? That pump won't last long and I'm surprised the unit is cooling like you say it is.
How can you possibly have 90F superheat? On a working freezer?
And of course a 90*f Super Heat is bad... Could contaminates cause a high super heat?
Compressor manufactures call for 20 – 40*f SH at the compressor to prevent damage.
Since the unit is working now, do I go back, recover, pressure test, evacuate, and weigh in charge. Or should I just leave it since it is operating properly (for now). I am trying to be proactive.
Self contained RI freezer. All the time u took to fiddle and think about it you could have pulled charge evacuated and weighed the exact proper charge in. Not picking but I never guess on charge on RIs when the charge weight is on the data plate. Just saying
I am not sure if I was clear or not… but the unit is operating normal since I have serviced it (About 4 days ago).
Yes to the CPR Valve - 10PSIG Not sure what #'s are for the TXV.
is there a cpr valve on it. whats the actual #'s on the txv valve itself.Just want to see what kind of valve you got.
Originally Posted by Tbone39 TXV It is a Carrier ULG80BC-5, Three Door Glass Freezer (Bottom Mounted Compressor). Forget SC with a receiver. Clear the SG and adjust the SH
TXV It is a Carrier ULG80BC-5, Three Door Glass Freezer (Bottom Mounted Compressor).
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