Robinair 34788-H Recovery, Recycling, Recharging Unit - Manual (Page 13)

11
560826 Rev. D, August 23, 2013
Recharge the A/C System
If you are servicing a hybrid vehicle having an
electric compressor with POE oil, first perform
a brief hose flush procedure to clear the unit of
residual PAG oil. CAUTION: Failure to perform
this procedure will cause contamination of
the hybrid system as well as failure of the
compressor .
1 . Press CHARGE . The unit displays
CHARGE HYBRID W/ AN
ELECTRIC COMPRESSOR
THAT USES POE OIL?
YES NO
If servicing a hybrid, press START / YES .
Connect service couplers to the storage port
connections at the rear of the unit (see Figure
7), and open the coupler valves. Press START
/ YES again to begin a hose flush procedure.
When hose flushing is complete, connect the
service hoses to the vehicle service ports, and
press START / YES to continue.
2. Press CHARGE again to toggle between a high-
side charge, a low-side charge, or both. Note: The
blue light on the control panel indicates a low-side
charge; the red light indicates a high-side charge.
See Figure 8.
3. Accept the default weight by pressing START /
YES, or type in a weight using the number keys,
and press START / YES .
4 . After a valid charge weight is entered, the display
reads
CHARGE IN PROGRESS / DO NOT DISTURB
X.XX LBS. (X.XX KG)
Moving or bumping the unit at this point may
result in an incorrect reading.
Note:
• During a charge cycle, if the unit fails to transfer
refrigerant due to low tank pressure, the charge
process is automatically interrupted and the unit
operates in a mode to build tank pressure. Once
tank pressure is sufficient, the unit automatically
completes the charge.
Operating Instructions
Operating Tips
After selecting the CHARGE function and
entering a desired weight, if the weight
entered will leave less than 2 lbs. (.91
kg) of refrigerant in the internal tank after
charge, the charge function will not start.
The display reads
INSUFFICIENT REFRIG.
PRESS ANY KEY TO EXIT
Refer to the Maintenance section of this
manual for instructions to Manually Refill
the Internal Storage Vessel (ISV).
Red light indicates
High-Side Charge
Blue light indicates
Low-Side Charge
Figure 8
Figure 7
Storage Port
Connections