[cwl1979]

I gave a lot of thought about installing a Jun-Air.  Instead I repaired all of my air leaks, now the compressor only comes on when doors are operated.  I still give the Jun-Air some thought when in a campground since the compressor must annoy the neighbor on that side.  The best improvement I did on the Thomas compressor was installing a muffler on the unloader as described in this thread. Compressor Unloader Muffler  The unloader is completely silent now.

https://www.amazon.com/Compressed-Air-Pn...3419741011

For those that don't feel like getting creative.

[360]

I took the plunge and bought the Jun-Air that Richard posted above. Had an opportunity for a quick trip before I had a chance to permanently install it so I purely stuck it in a bay and plumbed the air in the rear port. Couldn’t tell you if it ran once or 50 times this week. Didn’t hear it once.

So now to permanently instal I wanted some insight. My current compressor uses a separate pump switch and unloader along with the being powered via what is connected to the HWH controller. What I think I’d prefer is to purely put an outlet in that generator blower bay where my current compressor is and bypass the way it’s wired now. Then I would also have an easy easy to put a heater in that bay for cold weather.

Any reasons this is a bad idea? If it’s a good idea how do I tie into the existing electrical to add that outlet?

[cwl1979]

If yours is like mine it has the big electric motor and belt drive blower. If that's the case I wouldn't tie into that wire. High risk of overloading circuits. However you could find the output leads on the back of the gen and run SOOW cord and make a new outlet in that bay. Downside to that would be that it wouldn't have a breaker if it ever needed one.

[360]

If yours is like mine it has the big electric motor and belt drive blower. If that's the case I wouldn't tie into that wire. High risk of overloading circuits. However  you could find the output leads on the back of the gen and run SOOW cord and make a new outlet in that bay. Downside to that would be that it wouldn't have a breaker if it ever needed one.

Actually your comment on the breaker made me think about I also would not have a switch inside the coach for it which would not be ideal.  I’ll just wire it in as is.

[Jack Houpe]

Brad I went a different direction when installing my junair compressor I put it in the bay where all the old basement air was located then ran a 1/4" line to the tank located in the generator blower compartment. My junair has a pressure switch on the compressor so no need for the one in the fan compartment and I installed a counter to see how many cycles in a day or week.

[[email protected]]

I gave a lot of thought about installing a Jun-Air.  Instead I repaired all of my air leaks, now the compressor only comes on when doors are operated.  I still give the Jun-Air some thought when in a campground since the compressor must annoy the neighbor on that side.  The best improvement I did on the Thomas compressor was installing a muffler on the unloader as described in this thread. Compressor Unloader Muffler  The unloader is completely silent now.

I thought I would see what is available for Jun-air used. did not know there were so many variations of models.  What model have you guys installed? Trouble getting 240 volts to that compartment?

[Jack Houpe]

John yes it's a pain that's why I put it in the compartment where the basement air units were but remember I have a totally different heat and air system than all the rest. There is 240 volt available in the basement air compartment but running the wire to where the old compressor was at it's not easy it would be better to spend the extra bucks and buy the 120 volt AC version.

[360]

I thought I would see what is available for Jun-air used. did not know there were so many variations of models.  What model have you guys installed? Trouble getting 240 volts to that compartment?

This is the one I bought.  They call it a 6-4 and you can get it as a 120.  Mine came with unloader and adjustable pump switch.  It’s not silent, but it’s for sure quiet.

https://www.ebay.com/itm/176446828811?mk...media=COPY

[[email protected]]

I thought I would see what is available for Jun-air used. did not know there were so many variations of models.  What model have you guys installed? Trouble getting 240 volts to that compartment?

This is the one I bought.  They call it a 6-4 and you can get it as a 120.  Mine came with unloader and adjustable pump switch.  It’s not silent, but it’s for sure quiet.

https://www.ebay.com/itm/176446828811?mk...media=COPY



I would like to just install compressor and not tank nor the attached pressure control but not sure what purpose the line theat goes under the switch serves since there is also pressure from the tank applied underneath.  Can someone explain the function of the ports?
Thanks

[Richard]

John,

No problem just installing the compressor. You will have to ensure that you have a pressure switch AND and compression relief path.

That may already exist in the coach.

Or you can easily plumb your own. I apologize if I am telling you something that you already know. 
On the air line out of the compressor install a tee, one of the lines from the tee goes to the relief valve on the air compressor switch, the other line on the tee goes to a check valve, then is plumbed into the air pressure switch and the tank or system.