Webasto Thermo Top Z Shop Manual page 28

6 Functional Checkouts
6.2.6 CO Setting
2
The CO setting is performed with the diagnosis tester
2
Thermo Test. For operation of diagnosis tester refer to
operating instructions.
Nominal contents of CO
Geographic altitude
above sea level [m]
1500
1000
500
250
0
1. Switch on heater and allow to operate for approx.
5 min.
2. Connect screw coupling of adapter wiring harness to
diagnosis tester.
3. Connect plug (yellow wire) to diagnosis connector in
vehicle (connector with yellow wire).
4. Connect red battery terminal clamp to battery plus and
black battery terminal clamp to battery minus of
vehicle.
5. Switch on exhaust meter.
After connection of diagnosis tester the following text is
indicated alternately:
Diagnostic Adapter
SW-Version X.XX
W e b a s t o
Thermosysteme
By pressing any key the equipment select menu is
called up.
6. Press any key.
7. Select heater.
8. In main menu select "CO
604
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NOTE
in exhaust at full load operation [Vol.-%]
2
–20
Fuel Diesel
10.2 11.3
9.6 10.6
9.0 9.9
8.7 9.6
8.4 9.3
NOTE
setting".
2
For starting heater diagnostic line must be disconnected.
Connection of diagnosis tester with heater on and
operating at full load (approx. 5 min after switch on).
Change of CO value in increments by pressing OK key.
2
For settings refer to the following table:
Air temperature [°C]
0
Fuel Diesel
10.4
9.7
9.1
8.8
8.6
9. Select submenu "Decrease CO
By pressing OK key repeatedly CO
increments. The cursor remains positioned on the
selected function.
By selection of "Initial value" and pressing of the OK key,
the CO value stored automatically during start of the CO
2
setting may be restored.
By selection of "Store/return" and pressing of the OK key,
the last setting becomes the default and the main menu is
called up.
10. Select main menu item "Equipment selection" and
disconnect diagnosis tester from battery and from
diagnosis connection.
11. Switch off heater.
6.3 Repair Shop Level Testing
6.3.1 Components Testing
6.3.1.1 Glow Plug / Flame Sensor Resistance Check
When testing the glow plug / flame sensor with a digital
multimeter, the following readings should be obtained:
Resistance at 24 ± 6 °C:
Test current:
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Thermo Top E and Z/C
CAUTION
20
Fuel
11.5 10.6
10.8 9.9
10.1 9.3
9.8 9.0
9.5 8.8
" or "Increase CO
2
value changes in
2
NOTE
0.245 ... 0.325 
< 5 mA
Diesel
11.7
11.0
10.3
10.0
9.7
".
2
2