hellow to a fellow az i lived there for 25 years were i worked and still hold license for city of phx iam curently in oh .
Just an update. Had to go back to the job to get the wire size that is going to the machine and when I get there the customer says, "since you came, the machine has worked perfectly". I find that hard to believe but open the bin and find it full. I explain to the customer that their txv is bad and still flooding the compressor (not as bad as before) instead of frosting the top of the compressor its only making it sweat.
While onsite I time the harvest cycle. It droped at 3 minutes 20 seconds. It beat the clock by ten seconds. It's only a matter of time for this unit.
I have a funny feeling that they will not want repairs or replacement till the compressor gets taken out.
When it does,,, it will be the weekend that I am on call and they will demand that I crap out an evap, txv, and compressor to make the repairs.
I can understand why a customer would not want to make that sort of investment on repair. In the same sentence I can hear them bi*ching to me that they had to buy ice over the weekend.
What was the superheat when you checked it?
not good. according to pt chart zero. Actually less than zero. two inches from the compressor showed three degrees colder than the outlet of the evap.
I did remove the txv bulb and sanded the copper and made sure that the connection was secure in the eleven oclock postion. No change.
Just to clarify,,,, the entire top 25 percent of the compressor was sweating instead of freezing the condensate.
And that was inlet/outlet on the evaporator?
Another one for ya that I have a question on. Picked up a txv and filter drier for said machine above. Dropped it off to another tech onsite. I opened the box and saw peeped the instructions while he proceeded to do what he does. He removed the old txv and proceeded to braze in the new txv (it was gooped in Hot Damn) while purgin nitro. I saw on the instructions that it said if it was for a Q model that a J tube would need to be installed. From the factory this was mounted upside down. We both peered over the instructions and came to the conclusion that since it wasn't a Q model that it should be installed the same way it came out.
He did his thing and it didn't take long at all. I left for another job. He calls and says it is showing the same symptoms. Restriction. He calls mani tech support and they have him braze on service tap on the outlet of the txv and tell him if the pressure reading is the same that it is the txv that it is restricted.
I did a quick google search and couldn't find any service bullitans regarding txv mounting on S models. Or should he/we have heeded the instructions and mounted the txv rightside up and sweated in the J tube as it instructed to for for the Q model?
Any insight would be appreciated. New valve has been ordered. As for pressure and temps I really can't help ya there. I only know what he told me.
After he weighed in charge and compressor start up, high was around 275 ish and dropped down to 150-160ish. Suction dropped the same to settle aorund 2 psi.
As for temps can't really help ya there. Wasnt onsite. Told him I peek the internet and see if anybody else has come across this and relay the information to him.