bayberien help!

[danbb]

Ok now when iam checking line temp for subcooling i should be taking that temp as closest to my compressor?and iam a license contractor trying to expand for more work.

subcooling is after the condensor....

[nixcool]

Ive been installing heating and ac units for about 7 years for hvac company and now stated my own company and i have type 3 license just dont remember all the little details

[danbb]

You install any 410a units with TXV's?

[nixcool]

ok that makes sense lol.I have to go back to the call and get more data

[VTP99]

Forget about the sub cooling with refrigeration. It is what it is. With a TXV your going to want to know what the superheat is. This is a cooler correct ? If the coil is at 20-25 degrees that would be correct for a 10* TD evaporator.

[nixcool]

The guy i worked with he would do a lineset ft mesurement and weigh it in then air supply temp and be done

[nixcool]

It is cooler with an open top for deli

[nixcool]

when i get there ill recover the 134a and change the txv while iam there to make sure its not the problem and check subcooling again lol and i wish i new the factory charge but it cant no more than 12oz with 1/4hp

[jim147]

The model # you gave is for the condensing unit. It may or may not be the original. Your charge will depend on several other factors. Unless you have worked on a piece of commercial equipment since it was new, you have to start at the beginning.

jim

[2sac]

when i get there ill recover the 134a and change the txv while iam there to make sure its not the problem

If it's not the problem? Determine the problem then fix it. Otherwise you haven't learned antyhing and are nothing more than a parts changer. We have enough of those in our industry.

[VTP99]

Does your condensing unit have a receiver on it ? I did not see one on the model # you gave. Might have to do with the bill of materials though.