Got a work order for a 70 ton CGAM in alarm after power interruption with flow loss. #trane #airconditioning #chiller #hvac
Пікірлер: 21
@joshstevens98266 ай бұрын
Trane has an algorithm that takes superheat and exv position over a certain amount of time. If sh doesn't come down and the exv doesn't get in a certain range it says loss of charge. Usually the suction temp sensor reads really high, like 50-60 ° high. Thats always the first thing I look at when I get a loss of charge alarm.
@subcoolHVAC6 ай бұрын
Yep, it was definitely low on charge due to the leaks. That time frame is 5 min run and under 59 leaving , both compressors running SH was 12 after charging. EXV 60% . We’re replacing leaking service valves and replacing sensors anyways as insurance.
@zekenzy64866 ай бұрын
Great Video. Thank you for sharing
@subcoolHVAC6 ай бұрын
Thanks for watching!
@thesilentonevictor6 ай бұрын
She needs some love
@subcoolHVAC6 ай бұрын
Time flies it’s 11yrs old , coils replaced a few years ago
@LadariusCapersOfficial6 ай бұрын
@@subcoolHVACdoes it run a air handler unit 😊
@subcoolHVAC6 ай бұрын
Yes, there are 2 total
@georgebrabec17496 ай бұрын
. to take your time, as you can see, working around those EEV's can cause more issues. I had an older 115 ton CGAM that kept going into EEV communication loss, even with the new cables. Used silicon on the connections around the valves, end of issue. Great square one troubleshooting of diagnostics.
@subcoolHVAC6 ай бұрын
Thanks for sharing, 👍
@lee-johnson2 ай бұрын
What was the subcooling before you added refrigerant? Nice work
@ccthepope6 ай бұрын
A great vid!
@subcoolHVAC6 ай бұрын
Thanks as always!!
@Ericbakereb16 ай бұрын
Gotta love neglected equipment
@subcoolHVAC6 ай бұрын
Seen worse, we’ll get it fixed up 👍
@adamdnewman6 ай бұрын
There is almost always a leak somewhere 😂
@subcoolHVAC6 ай бұрын
No doubt 👍
@joshstevens98266 ай бұрын
9.9 times out of 10 cgam loss of charge alarm is a bad suction temp sensor.
@subcoolHVAC6 ай бұрын
Indeed 👍
@jasonjohnsonHVAC6 ай бұрын
Not always though....had one that was leaking from the shell of the receiver