Webasto Thermo 90 Installation Instructions

without non-return valve
cable harness
fuel line
exhaust pipe
water circuit
with non-return valve and thermostat
Fig. 3: Installation Examples for the Thermo 90 / Thermo 90 S Heater
Legend of Fig. 3
1 Heat exchanger of vehicle heating system
2 Switch for vehicle heating fan
3 Relay for vehicle fan
4 Digital timer
5 Fuse bank in vehicle
6 Non-return valve with leakage hole
7T-piece
8 Vehicle engine
9Heater
10 Circulating pump
11 Water pump
12 Radiator
13 Regulating valve
14 Exhaust silencer
15 Metering pump
16 Combustion air intake pipe
17 Thermostat
18 Electronic control unit
19 Control unit (alternative installation location of
Thermo 90 S)
Thermo 90 / Thermo 90 S
3

Webasto Thermo 90 Specifications

General

Brand	Webasto
Model	Thermo 90
Category	Water Heater
Language	English