[Latitude 28]

I had asked a while back but can't find the posting.  In the R1 bay in conjunction with the 120v compressor well switch is a regulator.  Seems like its a pressure relief regulator.  Does anyone know what the correct setting would be?

[rheavn]

mine is 120 psi

[Latitude 28]

Thanks Steve....

[Richard]

The purpose of that regulator is to limit the pressure the 120V pump can generate when the HWH system powers the compressor by bypassing the well pump switch. A new Thomas compressor is capable of 150 psi which will explode an air bag. You don’t want to find this out the way I did.

[Latitude 28]

I found this regulator in the R1 bay leaking air ever so slightly.  Tried to adjust to 120psi it only got worse.  I ordered a new Norgren P/N V07-100NNLA.  For lack of a better term this would be considered a pressure relief regulator as Richard stated above. Outside of the coach and on my bench I set up a normal regulator, with shop air, to approx 125psi output pressure and adjusted the new pressure relief set point to around 122psi.  Then I set the engine compressor governor to approximately 120psi.  Once installed and operational I only had to fine tune the relief set point.