Technical data

Examples for installation Thermo 90 S / Thermo 90 ST

4 Examples for installation

Fig. 2: Installation example for the Thermo 90 S / Thermo 90 ST heater

1 Heat exchanger, car’s heating system

2 Switch for car’s heating system fan

3 Relay for vehicle fan

4 Digital timer

5 Fuse strip in the car

6 Non-return valve with leakage hole

7T-piece

8 Vehicle engine

9 Heater

10 Circulating pump

11 Water pump

12 Radiator

13 Regulating valve

14 Exhaust silencer

15 Metering pump

16 Combustion air intake line

17 Thermostat

18 Control module (optional on the Thermo 90 S)

19 Control module (installation position of the

Thermo 90 ST and optional

for the Thermo 90 S)

Without non-return valve

With non-return valve and thermostat

Wiring harness

Fuel line

Exhaust line

Water circuit