Refrigernt used in roof air units?

[travis martin]

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

 

[darren paget]

Easy to take down with a friend. They are very heavy. Real heavy. Don't try
this by yourself. The wiring will have to be disconnected and the unit will
have to be unbolted. They are bolted from the inside out. There is a bolt in
each corner which connects to a metal plate. The unit is just clamped to the
body with these four bolts. Be careful and have fun. Darren

> 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