09
08
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
1. Initial Purge
Initial Purge
2. Recovery Process
Open the vapor and liquid valves of
refrigeration or air conditioning system
equipment.
Open the vapor valve of the refrigerant tank.
Turn the switch to the position START.
Press button.
a. Open the liquid valve for liquid recovery.
b. Open the vapor valve for vapor recovery.
Turn the switch slowly to positon 2 for faster
recovery.
When the recovery is finished, the unit gets
to the required vacuum or automatically
stops by low pressure protection.
Recovery Procedure
Connect hoses correctly and firmly. (Please
refer to the setup diagram)
Make sure all valves are closed.
Turn off the power to system equipment.
Start Operation
Note
If compressor liquid slugging occurs at position 2,
turn the switch to position START until the liquid
slugging stops.
If the recovery restarts after interruption of power or
fails to start,
2.1 Turn the switch to positon START,turn on the
power switch, press START button for liquid
recovery.
2.2 Turn the switch to position 3,turn on the power
switch, press START button for vapor recovery.
Note
Turning the switch to position 1 gets a stable
recovery of liquid with low speed of 2.6 lbs/Min.
If compressor slugging occurs at the position 1 turn
the switch slowly to position START until slugging
stops. Make sure the pressure is at zero, because it
doesn’t work at 10.
There is no need to turn off the power and it can do
the self-purge cycle automatically.
1.
2.
3.
1.
2.
3.
4.
5.
6.
7.
1.
2.
1.
2.
3.
1. Connect hoses correctly and tight according to setup diagram.
2. Open the vapor and liquid valves of manifold gauge.
3. Disconnect hose from refrigerant tank.
4. Open the output valve.
5. Turn the switch to START.
6. Press button.
7. Turn the switch to position 2 and start purging the air out of the hoses.
8. While the input gauge getting to 15" of vacuum (-1 bar), turn the switch to position 3 to start self-
purge.
9. While the input gauge getting to 15" (-1 bar) again, turn the switch to position 0 to finish self-purge.
10. Connect the hose back to refrigerant tank.
11. Press button.
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