Robinair 34788-H Recovery, Recycling, Recharging Unit - Manual (Page 24)

22
Maintenance
Scale Calibration Check
The calibration check is used to ensure that the
unit’s internal scale is always calibrated. During this
test, use only the calibration weight that is provided
with the unit.
1. Press Menu .
2. Use the arrow keys to scroll to CALIBRATION
CHECK.
3. Refer to Figure 18, and verify the magnet on the
bottom of the unit is clean. Press START / YES .
4. The display reads
ATTACH THE WEIGHT TO THE BOTTOM OF
THE MACHINE
PRESS START TO CONTINUE
5. Attach the weight provided to the magnet on the
bottom of the unit. Press START / YES .
• If the display shows CALIBRATION
APPROVED, the scale is in calibration. Press
any key to exit.
• If the display shows CALIBRATION REJECT,
the scale is out of calibration. Call your local
service center for assistance.
• If the display shows CALIBRATION ERROR
1, verify the calibration weight is correctly
attached to the magnet, and verify the magnet
is clean with nothing attached to it. If that does
not correct the problem, call your local service
center for assistance.
Check for Leaks
Check the unit for leaks every three months, or as
specified by law in your jurisdiction.
1. Turn off MAIN POWER, and disconnect the
power cord from the outlet.
2 . Open the rear door; remove top cover and front
panel .
3 . Use a leak detector to probe all connections
for refrigerant leaks. Tighten fittings if a leak is
indicated.
4. Reassemble the body panels, and close the
rear door.
Magnet
Figure 18
Inspect the unit periodically for leaks .
The manufacturer does not reimburse
for lost refrigerant .