R-22 in a Cruise Air

[Ryker]

I should have asked this question last year! I feel bad asking so many questions but this bus came with such a steep learning curve. Thank you, muldoonman!

[muldoonman]

Anytime. Had to learn to work on my 3 behind front bumper on my coach. These guys know there stuff for sure. Fred can and will answer all your questions and seems like a nice Guy.

[rusty]

This is what I found out about my Cruise Air. ( I am the luckiest guy in the world the man that helped me worked for me for 10 or 12 years. Heavy and highway concrete can be hard on ones body so he took HVAC school while he worked for me and then went into that business.) We evacuated the system and got about .42 lbs. We pressure tested the system with nitrogen at 150 lbs. We then purged the system with nitrogen. We then pulled a vacuum to 750 microns for about 4 hours. We then added 1.74 lbs of R-22. we ran the system and took some temp and pressure measurements to get some sub cooling and super heat readings. We are not completely satisfied with those reading but will re visit that when it warms up and the system works a little harder. We did not add any oil as we think there are 512 cc of oil in it from the factory and the amount I lost was minimal. The guys over on Jon's pervost site also have some good advise as to how to add the correct amount of freon. Their way is a little more by the seat of your pants and I will use their way along with the PT charts. I will say so far these are nice units. Way more quiet then the roof airs on the 05. Most know I have the condensers mounted on the roof and should have no problem cooling them.
Wayne

[luvrbus]

Only problem with those units they need plenty of fresh air or they kick out from the heat,the people at Marathon mounted a unit in the engine compartment and it always gave me a problem till I had it moved

[Nick Badame Refrig/ACC]

This is what I found out about my Cruise Air. ( I am the luckiest guy in the world the man that helped me worked for me for 10 or 12 years. Heavy and highway concrete can be hard on ones body so he took HVAC school while he worked for me and then went into that business.) We evacuated the system and got about .42 lbs. We pressure tested the system with nitrogen at 150 lbs. We then purged the system with nitrogen. We then pulled a vacuum to 750 microns for about 4 hours. We then added 1.74 lbs of R-22. we ran the system and took some temp and pressure measurements to get some sub cooling and super heat readings. We are not completely satisfied with those reading but will re visit that when it warms up and the system works a little harder. We did not add any oil as we think there are 512 cc of oil in it from the factory and the amount I lost was minimal. The guys over on Jon's pervost site also have some good advise as to how to add the correct amount of freon. Their way is a little more by the seat of your pants and I will use their way along with the PT charts. I will say so far these are nice units. Way more quiet then the roof airs on the 05. Most know I have the condensers mounted on the roof and should have no problem cooling them.
Wayne

Hi Wayne,

Sorry I didn't catch your post earlier...
The only reason I gave you that way to charge is because I don't know how long of line sets you have. Neither does Cruisaire so going by temp/psi charts
and by psi readings on a 70 deg ambient day is what will work best for you with me not being there myself. It sound like you have it somewhat under control
now. You should be real close.

Regards
Nick-