© 2000 Robinair, SPX Corporation
6
Operating Instructions
SELF-CLEARING PROCEDURE
CAUTION! Do not mix refrigerant types. Always perform the self-clearing
procedure after each recovery. Beginning each job with a “clean” unit will
help eliminate mixing of different refrigerant types.
1. Close the ball valves on the red and blue hoses connected to the A/C-R
system. Disconnect these hoses from the system’s access ports.
2. Close the blue LIQUID valve on the tank and the ball valve on the blue
TANK LIQUID hose. Disconnect the TANK LIQUID hose from the tank.
3. Check to be sure the red TANK VAPOR hose is still connected to the red
VAPOR fitting on the tank. Both the tank’s red VAPOR valve and the ball
valve on the red TANK VAPOR hose should be open.
4. Turn the valve on the control panel to SELF-CLEAR.
5. Press the switch to SELF-CLEAR.
6. Press the POWER Switch to ON. You will hear the compressor start.
7. Let the compressor run until the system pressure gauge reaches the appropri-
ate vacuum level. The System Pressure gauge will return to VACUUM. Press
the POWER switch to OFF. Unplug the unit from the electrical source.
8. Close the red VAPOR valve on the tank and the ball valve on the red TANK
VAPOR hose. Disconnect the TANK VAPOR hose from the tank.
WARNING
Disconnect hoses with extreme caution! All hoses may contain
refrigerant under pressure.
9. While the hoses are still connected to the unit, slowly open the ball valve on
each hose to relieve any pressure in the hose. Close the ball valves, then
disconnect the hoses from the unit.
