Installation Manual

6
CAUTION : Purge the unit after a recovery
procedure. Failure to purge the remaining
refrigerant from the unit could result in acidic
degradation of internal components, ultimately
causing premature failure of the unit.
1. Verify the liquid and vapor valves on manifold
gauge set are closed (if applicable).
2. Close the valves on the system being serviced
(if applicable).
3. Verify the outlet valve on the unit is open and
the inlet valve is closed.
4. Verify the liquid valve on the recovery cylinder
is open.
5. Turn the recover / purge valve to the PURGE
position.
6. Toggle the power switch ON.
7. Slowly turn the inlet valve toward the PURGE
position. As the inlet side pressure decreases,
open the valve to the full purge position.
8. Run the unit until the desired vacuum is
achieved.
9. Close the inlet and outlet valves on the unit.
10. Toggle the power switch OFF.
11. Close the ports on the recovery cylinder.
12. Turn the recover / purge valve to the
RECOVER position.
13. Disconnect all accessories and replace the in-
line lter.
Standard oPerating inStructionS
Recovery Procedure
1. Connect the unit to an appropriate 115 V outlet.
2. Slowly open the liquid valve of the recovery
cylinder while watching hoses and connections for
leaks.
3. Set the recover / purge valve on the unit to
RECOVER.
4. Open the liquid valve on the manifold gauge set.
Note: Opening the liquid valve removes liquid from
the system rst, greatly reducing recovery time.
5. Open the outlet valve on the unit.
6. Toggle the power switch to the ON position.
7. Slowly open the inlet valve on the unit. Note: If the unit begins to “knock”, slowly throttle back (close)
the inlet valve until the noise stops.
8. Once the liquid has been removed from the system, open the vapor valve on the manifold gauge set to
nish evacuating the system.
9. Run the unit until the desired vacuum is achieved.
10. Close the vapor and liquid valves on the manifold gauge set.
11. Turn the inlet valve on the unit to the CLOSED position.
12. Toggle the power switch OFF.
Purge the Unit
Tech Tip
If you have trouble starting or re-starting the unit
due to high head pressure, rst close the inlet
valve. Then slowly turn the inlet valve toward the
purge position until the inlet pressure rises. Close
the inlet valve again and re-start the unit.