Robinair 25200B Refrigerant Recovery Unit - Manual (Page 6)

4
operating Instructions
reCovery ProCedUre
WarnInG
To prevent personal injury,
Read and follow all warnings at the beginning of this manual
before operating the unit. Wear safety goggles when working with
refrigerants. Use only authorized refillable refrigerant tanks.
Disconnect hoses using extreme caution. All hoses may contain
refrigerant under pressure.
1. Connect hoses as described in the Setup Instructions.
2. Open the LIQUID and VAPOR valves on the recovery tank. Open the ball
valves on all four hoses.
NOTE: To prevent overfilling, monitor the tank capacity/weight during recovery.
During liquid recovery, refrigerant transfers rapidly. Monitor tank weight using the
appropriate weight scale.
3. Look at the system pressure gauge on the unit to confirm there is refrigerant
pressure in the system. If there is no pressure, there is no refrigerant to be
recovered.
NOTE: By taking the ambient temperature and using a pressure/temperature chart,
you can use this pressure to determine the type of refrigerant in the system.
4. Turn the switch to RECOVER. The light on the switch illuminates and you
will hear the compressor start.
A float chamber monitors the refrigerant being recovered and automatically adjusts
the unit to handle either liquid or vapor refrigerant. This provides for the most
efficient recovery. The amber light on the control panel indicates when liquid is
entering the unit.
5. The blue gauge labeled SYSTEM PRESSURE shows the current system
pressure throughout the recovery process. When the system pressure reaches
an adequate vacuum level, turn the RECOVERY switch OFF.
The recovery process is complete, but the unit must be cleared before disconnecting
all hoses. (Refer to the Self-Clearing Procedure.)
Refrigerants 30 lb. Tank 50 lb. Tank
R-12 22 lbs. 40 lbs.
R-22 22 lbs. 40 lbs.
R-134a 22 lbs. 41 lbs.
R-407C 21 lbs. 39 lbs.
R-410A 19 lbs. 36 lbs.
TANk CAPACITy CHART