MAHLE RTI Matco AC2880 - Manual (Page 16)

Page 14
SET OVER CHARGE AMOUNT
A one ounce over charge is added during each charge
procedure to compensate for refrigerant loss in the service
hoses. This can be programmed to accommodate different
operating conditions as follows:
1. Remove rear panel by releasing the two black latches on
each side of the AC2880.
2. Close all valves and turn on power.
3. Press [ >] key five times.
4. Observe displays as shown to the left and refer to the
illustration below for the following steps.
5. Look into the AC2880 from the R12 side and locate metal
covered circuit board mounted on the underside of the top
panel.
6. Remove calibration tool.
7. Insert un-threaded end of calibration tool into access hole
and GENTLY PRESS the calibration switch.
8. Press [ >] key one time.
9. Enter amount desired for over charge - note the unit of
measure is kg. (1 ounce = 0.02835 kg)
10. Press [ #] key to accept the new value for over charge.
11. Replace calibration tool and rear panel.
Calibration Tool Part Number 360-81214-00