Robinair 34988 Recovery, Recycling, Recharging Unit - Manual (Page 15)

13
554228 Rev. E July 30, 2013
Operating Instructions
Recharge the A/C System
1. Connect service hoses to the vehicle’s service
ports.
2. Select CHARGE. The display reads
CHARGE MENU
CHARGE AMOUNT: 0.00 LB
CHARGE MODE: ______SIDE
USE ARROW KEYS TO SCROLL UNITS.
3. At this point, select INJECT OIL, if necessary.
The display reads
OIL XXX
INJECT DYE _______
Use the number keys to enter the amount of oil
to inject.
4. Select TOGGLE DYE to turn dye inject ON
or OFF. Select SAVE to return to the charge
screen.
5. Select MODE to toggle between a high-side or
low-side charge, or both. Note: Charge mode
after injecting oil allows only a high-side charge.
6. Type in a charge weight using the number keys.
Select START.
Moving or bumping the unit at this point may
result in an inaccurate charge.
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.
• When the charge cycle gets close to the weight
entered in Step 6, the unit slows down. It will
charge, settle, charge again, settle, etc.
• Before it charges, the unit may purge air
out of the ISV to minimize the amount of
noncondensable gases that could contaminate
the A/C system.
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.
THERE IS NOT ENOUGH REFRIGERANT IN
THE ISV TO COMPLETE CHARGE.
PRESS TANK FILL TO ADD MORE
OR EXIT TO ABORT.
Refer to the Maintenance section for
instructions to Manually Fill the Internal
Storage Vessel (ISV).
• After selecting INJECT OIL, if the oil inject
bottle is not in the correct position, the display
reads
INJECT OIL BOTTLE WEIGHT IS LOW
CHECK OIL BOTTLE
RETRY OR EXIT TO ABORT
Verify the oil inject bottle is attached to the
machine as explained in the Setup section.
• After selecting INJECT OIL, if there is an
insufficient amount of new oil in the oil inject
bottle, the display reads
INJECT OIL HAS STALLED
CHECK OIL BOTTLE
RETRY OR EXIT TO ABORT
Fill the oil inject bottle with new oil as explained
in the Setup section.
• If pressure is detected, the unit displays
PRESSURE TOO HIGH FOR INJECT!
PRESS EXIT
Select EXIT, and recover refrigerant before
proceeding.