R-22 in a Cruise Air
 

R-22 in a Cruise Air

Started by rusty, March 18, 2019, 02:10:51 PM

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rusty

Do to a dumb mistake by me I have to evacuate my cruise air system. Does anyone know how much R 22 and oil a 14000 btu Cruise Air system should take

Thank You
Wayne

rusty

I had sent a message to Nick and did not see his reply. Sorry about that Nick. The man that is helping me likes to go by the scale so I was hoping   there might be an amount they were charged with from the factory. If not I will show him your suggestion and go from there.

Wayne

chessie4905

If you can remove it very slowly, you can avoid oil loss. Any amount recovered can be measured and added upon refill. I know some technicians watch the frost on the line when recharging without weighing. Doesn't the unit have a label or stamped spec?
GMC h8h 649#028 (4905)
Pennsylvania-central

buswarrior

I don't think he has any left to recover...

Is there a plate or sticker on the unit anywhere?

One of the good side effects of the environmental regulations, all the new stuff comes with the refrigerant data attached to the machine somewhere.

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift

luvrbus

Freon is going to depend on a lot of things,the Cruise Air have sight glass shouldn't be that hard unless you just want to know how much to buy.I had Cruise Air (3) in the Eagle,man I miss those but they are touchy on the charge
Life is short drink the good wine first

stevet903

Here's the manual, it doesn't specify the weight, it just gives a temperature-pressure chart which should be helpful.  - Steve

rusty

I bought these units new from Nick 7 years ago. I needed them on hand back then so I could arrange them as I but the condenser on the roof in pockets. I do not see ( and I looked at every sticker and plack) how much r 22 or oil they came with. One of the units had a leak at the valve so it was low on  feon. We have evacuated the system and think it was the king valve packing nut.  We now have pressure tested the system to 150 lbs and drew a vacuum to 500 microns. Some oil came out through all this.  So I guess we will but some back in. I have read a ton and no where that I have look do they give that information. We are looking for information on the compressor maybe there is something there. Can I get close enough using pressure with it being as cool as it is? I am taking the bus to California for paint and they will have it for a couple of months and I want them to work on the way back to Colorado.

luvrbus

They are a split unit with so many different configurations the tag inside is all the the information  you get
Life is short drink the good wine first

rusty

Yes I understand there can be a lot of different configurations, but they come charged and say there is enough the fill most systems. What is so secrete about that amount. Rant done. Thank You everyone for the information we will fill it by pressure and temps and put  SOME oil in it

Wayne

buswarrior

All part of the conspiracy of silence...

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift

luvrbus

Mine came with a low  pre charge but still had to be charged after installation,when in doubt about a Cruise Air call  the disturbutior in Kemah Tx. Mine were made by Taylor yours  are probably Dometic  with changes
Life is short drink the good wine first

Jim Blackwood

I've always just added r22 until the line begins to frost a little and quit. Maybe a little more on a hot day. A couple cans are more than enough for a roof unit.

Jim
I saw it on the Internet. It MUST be true...

luvrbus

Quote from: Jim Blackwood on March 19, 2019, 10:36:01 AM
I've always just added r22 until the line begins to frost a little and quit. Maybe a little more on a hot day. A couple cans are more than enough for a roof unit.

Jim


His are not roof units they very high dollar marine units .I understand his concern they are very touchy on a charge and even new but 7 years old he probably has no warranty from Dometic
Life is short drink the good wine first

Ryker

I don't mean to hijack this thread but I logged in this morning to research the Cruisair units because one of mine was freezing up and now won't even blow cold air. Can someone point me in the right direction of where to get these repaired or partially replaced? I'm pretty sure mine is around 1990 vintage.
Thank you!
1974 GMC P8M4905A-615

muldoonman

Quote from: Ryker on March 19, 2019, 12:57:09 PM
I don't mean to hijack this thread but I logged in this morning to research the Cruisair units because one of mine was freezing up and now won't even blow cold air. Can someone point me in the right direction of where to get these repaired or partially replaced? I'm pretty sure mine is around 1990 vintage.
Thank you!

Freezing up,,, low on freon (R22) . These Guys have all the knowledge and parts you need to fix your AC's.
AAP
Fred  804-633-9454
16388 Industrial Dr.  Milford, VA  22514
sales@aap.com
http://aap.com