5. To drain the oil, unscrew the oil drain plug (J).
6. Once the oil has been completely drained from the pump housing, screw the oil drain plug (J) back in.
7. Top up with new vacuum pump oil to the middle of the sight glass (H) and screw the oil filling plug (G) back in.
8. Put the front panel and control panel back.
9. Reconnect the power supply plug.
10. Reset the Vacuum time counter (Resetting the counters on page 29).
14.8 Replacing the printer paper
1. To replace the printer paper roll open the cover (K).
2. Insert the new paper roll and close the cover (K).
14.9 Meter readings
The A/C service unit saves various meter readings. To access the total values (consecutively, since the A/C ser
vice unit was produced) proceed as follows:
1. Enter the Other selections – Service menu.
2. Enter the code
.
7783
3. Use the cursor keys or to select the required entry. These meter readings cannot be reset.
4. To access the meter readings which can be reset, enter the code
vacuum pump oil on page 34 or Changing the dryer filter on page 31).
R1234 from system
Total
g.
STOP‐EXIT
R1234yf from system indicates how many grams of refrigerant have been extracted from air conditioning
systems using the menu item Short selection or Free selection since the last reset (see date).
R1234 from tank
Total
g.
STOP‐EXIT
R1234yf from tank indicates how many grams of refrigerant were added to the A/C service unit using the
menu item Int. vessel filling since the last reset (see date).
R1234 to system
Total
g.
STOP‐EXIT
7782
07/03/17
1455
07/03/17
3395
07/03/17
1200
under Service (see also Changing the
EN
35