What pressures should I see in the low and high side of the AC system while recharging with 134a? I know the high side depends on the outside temp (amount of heat removed) but what is the MAX pressure allowable? I believe the low side should be around 28 psi.

I know there is not alot of refridgerent in the system, I don't want to add too much and blow out any seals of hoses.

Thanks in advance for your replies

 

I think low side has to be 43.5psi
high side 180

Marcos