Webasto Thermo 90 S Thermo 90 S-ADR User Manual
Table of contents
Thermo 90 S / Thermo 90 ST
II
6
Function tests
6.1
General ................................................................................................................................................. 601
6.2
Settings................................................................................................................................................. 601
6.2.1 Setting the CO
2
content.............................................................................................................. 601
6.3
Testing individual components.............................................................................................................. 601
6.3.1 Resistance test of the temperature sensor ................................................................................. 601
6.3.2 Resistance test of the glow plug ................................................................................................. 601
6.3.3 Resistance test of the flame monitor .......................................................................................... 601
6.3.4 Testing the combustion air fan.................................................................................................... 601
6.3.2 Resistance test of the glow plug ................................................................................................. 601
6.3.3 Resistance test of the flame monitor .......................................................................................... 601
6.3.4 Testing the combustion air fan.................................................................................................... 601
7
Circuit diagrams
7.1
General ................................................................................................................................................. 701
8
Service work
8.1
General ................................................................................................................................................. 801
8.2
Work on the heater ............................................................................................................................... 801
8.3
Work on the vehicle .............................................................................................................................. 801
8.4
Heater trial run ...................................................................................................................................... 802
8.5
Service work ......................................................................................................................................... 802
8.6
Visual inspections and installation instructions ..................................................................................... 804
8.6.1 Connection to the vehicle cooling system................................................................................... 804
8.6.2 Connection to the vehicle fuel system ........................................................................................ 804
8.6.3 Metering pump with damper ....................................................................................................... 807
8.6.4 Fuel filter ..................................................................................................................................... 807
8.6.5 Combustion air supply ................................................................................................................ 807
8.6.6 Exhaust line ................................................................................................................................ 808
8.6.2 Connection to the vehicle fuel system ........................................................................................ 804
8.6.3 Metering pump with damper ....................................................................................................... 807
8.6.4 Fuel filter ..................................................................................................................................... 807
8.6.5 Combustion air supply ................................................................................................................ 807
8.6.6 Exhaust line ................................................................................................................................ 808
8.7
Removal and installation....................................................................................................................... 808
8.7.1 Heater, removal and installation ................................................................................................. 808
8.7.2 Changing the circulating pump ................................................................................................... 809
8.7.3 Changing the temperature limiter ............................................................................................... 809
8.7.4 Changing the temperature sensor .............................................................................................. 809
8.7.5 Changing the combustion air fan ................................................................................................ 809
8.7.2 Changing the circulating pump ................................................................................................... 809
8.7.3 Changing the temperature limiter ............................................................................................... 809
8.7.4 Changing the temperature sensor .............................................................................................. 809
8.7.5 Changing the combustion air fan ................................................................................................ 809
8.8
Start-up ................................................................................................................................................. 809