AUX AIR PRESSURE

[Danss]

What kind of adjustable pressure air regulator can you find that lets you adjust to around 40 on to 80 off?

[Gil_J]

Dan,

You'll probably find most pressure switches to turn on 20-25 PSI below the turn off pressure. Do you have a special need to let the pressure drop 40 PSI? If you can't find one, you can install 2. A bit ugly, but it can be wired to work.

[Joe Camper]

I've seen Regulators on buses that you can adjust the parameters like that but I have to agree with Gill it's kind of unnecessary.

There's two little set screws in them versus a 3/16 nut squeezing or releasing the tension on a spring which is how the most of them are.

[Gil_J]

BTW, don't buy a pressure switch without an unloader valve, which most if not all air compressor pressure switches have.

[Danss]

Cannot find one that is adjustable because I need 12v

[Gil_J]

Dan don't worry about the voltage. The ones rated for 120/240V will work fine. The current rating is the important spec.

[Joe Camper]

14912

Here is one of the other kind, for lack of a better term, of pressure sensor switches. You can play with the parameters with one like this. it's a little confusing to get it figured out at least it was for me but you can do it.

Kind of like timing and dwell

[BoaterAl]

Does someone have the supplier info for the above part number. Tried Granger, negative. Ones shown in Granger has features we don't use.

[Joe Camper]

Al this is on one of those California air compressors I've been using for aux air compressors when they go bad and it's Chinese. I'll take a picture of the other side of the cap it's got a name brand on that cover you can possibly research that.

I know I came across one prior to finding California Air Products did you try Square D?

On my bus I had rewired the control for the compressor like a Horton fan clutch on a semi truck. It was a 3 position switch automatic, off and manual. Right before bed every night Id put it on manual when the TV was on and you really couldn't hear it, wasn't a bother and I'd run it up 120 right before I go to bed, put it back on auto and it last all night never come on back on, the auto would kick in was about 50 or so.

That was like my comfort zone and my litmus test. If she start losing more than 40 or 50 pounds overnight and a compressor would kick on it was time to get after it again, start finding some leaks again.

Now that I'm thinking about it another thing that I reconfigured the control was the external cooling fans in the inverter Bays. It seemed to me like those thermostatic controls it have to get to dog gone hot before they would kick on and so Id switch them manually or on auto either way I want. If it was hot out there they were on manual running constant. You know how it is if you wait until the baby gets so hot that the sensor kicks the fan on it can't get caught back up but if you run them prior when you know it's going to be hot they did a way better job

Both good conveniences that's really easy to do.

[Joe Camper]

Here is the lid.

14913

Good luck