Travis --
If my memory is right, they use R-12. 22 has a lower heat absorption rate
efficiency, and these units need as much capacity in a small space as they
can get.
Do take the advice of the post from Darren. These baby's are heavy and that
roof is kinda' flexy.
Put down a couple of layers of 1/8" masonite or thin paneling to spread your
weight around. I've found that two or three layers distribute your weight
better than one thick board, which won't bend enough to contour to the
roofline itself. Just for what it's worth.
Mark Grady
'77K
mailto:mgrady
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailto
wner-gmcmotorhome]On Behalf Of Travis Martin
> Sent: Wednesday, February 03, 1999 9:50 PM
> To: gmcmotorhome
> Subject: GMC: Refrigernt used in roof air units?
>
>
> Can anyone tell me which refrigerant the roof air units use? R12 or R22?
> While you're at it, tell me how much trouble it is to remove the roof air
> unit...am I better off to work on it in place?
>
> I don't relish trying to balance myself and tools on the roof while
> working; looks like it would be easier in the long run to take it
> down, fix
> it (got a leak somewhere) and then re install it; I'd like to hear from
> someone who's done it...
>
> Thanks in advance,
>
> Travis
>
If my memory is right, they use R-12. 22 has a lower heat absorption rate
efficiency, and these units need as much capacity in a small space as they
can get.
Do take the advice of the post from Darren. These baby's are heavy and that
roof is kinda' flexy.
Put down a couple of layers of 1/8" masonite or thin paneling to spread your
weight around. I've found that two or three layers distribute your weight
better than one thick board, which won't bend enough to contour to the
roofline itself. Just for what it's worth.
Mark Grady
'77K
mailto:mgrady
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailto
wner-gmcmotorhome]On Behalf Of Travis Martin> Sent: Wednesday, February 03, 1999 9:50 PM
> To: gmcmotorhome
> Subject: GMC: Refrigernt used in roof air units?
>
>
> Can anyone tell me which refrigerant the roof air units use? R12 or R22?
> While you're at it, tell me how much trouble it is to remove the roof air
> unit...am I better off to work on it in place?
>
> I don't relish trying to balance myself and tools on the roof while
> working; looks like it would be easier in the long run to take it
> down, fix
> it (got a leak somewhere) and then re install it; I'd like to hear from
> someone who's done it...
>
> Thanks in advance,
>
> Travis
>
