Can I use an old 134a tank, pull a vacuum on it, then use it to recover the refrigerant in my system? Then, can this stored refrigerant be placed back in the system afterwards?
I know it's crude, but, would it work?
WC
-------------------------
Those who can...do
Those who can't...
usually end up here
R134a cylinders have a check valve so this cannot be done.
-------------------------
RATS!
Any other ideas for a cheap recovery-er-thingy?
-------------------------
Those who can...do
Those who can't...
usually end up here
has anyone ever tried that type of recovery with a r12? how did it work out?
Possibly illegal:
A side tap may not have a check valve.
If a can is connected to the system with no check valve, the refrigerant would flow toward the can if the pressure is lower in the can.
To make the can pressure lower with the compressor off (PLEASE!), the can could be placed in ice water, lowering the temperature and vapor pressure there.
Refrigerant would flow to the can and condense there until the can is full, or the ice melts, or until there is no liquid in the system and the remaining gas in the system gets down to about 30 PSIG.
Edited: Sat April 12, 2008 at 9:39 PM by ChemE
The recovery container must have enough volume to hold more than the full charge in the system. If you end up with a recovery container absolutely full of liquid refrigerant, it will burst dangerously when it warms up even slightly. There needs to be a headspace of gas in it. For this reason a 12 ounce can is a bad choice.
We've updated our forums!
Click here to visit the new forum
Copyright © 2016 Arizona Mobile Air Inc.