TXV Replacement on Lennox Unit | Hvac Life
In this video we demonstrate how to replace a Thermostatic Expansion Valve. Sometimes these valves do not open thus restricting flow to the evaporator. Systems of a bad TXV look like a system that is low on refrigerant. This is why it’s very important to look at everything when it comes to the unit. Always check superheat and sub-cool #hvac #hvaclife #hvactechnician
Пікірлер: 5
I followed up my supervisor who diagnosed a txv and scheduled me to install it today. I was grinning at first when I saw every connection was flare or nut, but i trust braze more than flares these days =X Ty for the good content!
What tip to unsweat and braze? What were acetylene/ oxygen pressures
i thought u should flow nitrogen through while brazing
@EZHVAC
10 ай бұрын
You should! And I did I just didn’t show it in this video
@borshardsd
10 ай бұрын
I thought so too. Currently in the field, non mini, standard split or package units, I see lots of jobs successfully completed with no flow. Does that result in issues right away? Not that I've seen. Will it take a few years off the life of the system? Probably. I try to flow everytime. Buttttt the field thinks differently