Robinair 348012K Recovery, Recycling, Recharging Unit - Manual (Page 21)

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348002K/348012K Cool-Tech Recovery/Recycling/Recharging Unit
Operating Instructions
IMPORTANT!
You should
evacuate the A/C
system for at
least 15 minutes
for adequate
moisture and
contaminant
removal.
RECHARGING THE A/C SYSTEM
WARNING
1. Press CHARGE .
2. Accept either the default weight by pressing START or type in a weight with
the number keys and press START (For example, to program 3 lbs, press 3
and 3.00 lbs will appear on the display. To program 3.25 lbs, press 3-2-5, in
that order, and 3.25 lbs will appear on the display).
3. If the weight entered will leave less than 5 lbs. of refrigerant in the refrigerant
tank, the charge function will not start and the display will read:
LOW REFRIGERANT
Refrigerant XX.XX lbs.
See the Operating Guidelines section of the manual for refill instructions.
4. Close the Low Side valve. Place the High Side valve in the Oil Inject/Charge
position (Note: Use the valves corresponding with the refrigerant you are
working with).
5. Upon entering a valid charge weight, the display shows:
CHARGE MODE
AMT. CHARGED XX.XX lbs.
Press START to continue.
6. The display will say "Charge complete. Amt. charged XX.XX".
7. Close the high and low side coupler valves and remove the service
hoses from the A/C system.
8. Turn off the MAIN POWER switch.
The A/C system is now ready for use.
Always wear safety goggles when working with refrigerant. Use only
authorized refillable refrigerant tanks. Disconnect hoses with extreme
caution!
All hoses may contain liquid refrigerant under pressure. Read and follow
all warnings at the beginning of this manual before operating the unit.
Closed
Oil Inject/Charge
INST 0770
CORRECTING AN INCOMPLETE CHARGE
On ocassions the AMT. CHARGED will not finish. The reason for this is that the pressures
in the ESV and the A/C system have equaled. To finish the charge, you should:
1. Turn high side valve on the control panel to the closed position.
2. Turn low side valve on the control panel to recover/vacuum position.
3. Start the vehicle and turn on the A/C.
4. The remainder of the charge will be pulled into the A/C system and display
will read CHARGE COMPLETE.
Note: To add less than 1 pound of refrigerant, such as 0.25, press 0-2-5, in that order.