3
operate if float switch cable is not connected. Purge air and moisture from system by bleeding lines, using vacuum
pump or purge function of recovery system.
6. Open the vapor valve on the recovery tank.
7. Turn INLET valve on Recovery System to OPEN.
8. Turn on Recovery System (push power switch “I”). If Recovery System fails to start, see “Machine will not start”
below.
9. Turn center valve back to “Recover” position. Start recovery system. Open inlet valve.
10. Observe operation of system. In rare instances “slugging” may be apparent (loud compressor noise or high vibration).
If this condition is apparent turn inlet valve to LIQUID position. System can be run with this setting continuously. It is
suggested that operator periodically turn inlet valve to OPEN position and check for proper operation of system. Best
operation of the system is with inlet valve OPEN and automatic pressure regulating valve controlling flow conditions.
11. When the inlet pressure is below zero and the rate that it is decreasing has slowed significantly, the system is fully
recovered. There may be some liquid refrigerant in the recovery machine’s condenser which should be purged.
12. To purge the recovery machine, leave the machine running and turn the middle knob to PURGE, then turn the inlet
knob to PURGE. The residual refrigerant in the recovery machine will be pumped out. When the inlet gauge is well
below zero or the vacuum switch shuts the machine off, the purge is done. Close both the inlet and outlet valves and
remove the recovery machine from the system.
LIQUID
SUCTION PRESSURE DISCHARGE PRESSURE
PURGE
PURGE (START)
INLET
POWER
CIRCUIT
BREAKER
OUTLET
CLOSE
Recovery
System
DO NOT fill tank more
than 80% of capacity!
Approved
Recovery
Tank
Figure 1
Float Switch
Cable
Oil Drain Port
80%
RED
Low Side
YELLOW
High Side
Blue
MACHINE WILL NOT START
There will be situations that the recovery machine will not immediately start when the power switch is turned on. This
can happen if the vacuum switch turns the recovery machine off, the high-pressure switch turns the recovery machine
off or if there is a very high pressure on the inlet or outlet.
To start the machine without venting the hoses, turn the inlet and outlet valves to OFF. Turn the center knob to PURGE
then turn the inlet knob to PURGE. Wait 10 seconds or more for the pressure between the inlet and outlet to become
closer to the same. If the circuit breaker has tripped, make sure the recovery machine is turned off and reset it. Then try
restarting the recovery machine.
Be prepared to quickly open the outlet knob. If the pressure gets too high on the outlet, the high-pressure switch will trip,
and the machine may not restart. If the machine does not start, repeat the process above.
If the machine does not start after repeating the restarting process above, the inlet and outlet pressures will need to be
reduced. If the recovery machine will not start with both the inlet and outlet open to air, contact customer service.
TO DRAIN RECOVERED OIL
CAUTION! Do not cap the open bottle neck! The neck must remain open to vent pressure.
NOTE: The oil separator capacity is approximately 1.5 oz which can cover 8-10 normal recovery. However, some systems
deposit more oil in the separator due to high pressure or excessive oil in the system. It is recommended to drain oil after
each use of the recovery machine.
1. Check pressure on recovery machine inlet pressure gauge. Pressure must be below 10 PSI (.7 Bar), but above 2 PSI
(.1 Bar).
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