Webasto Thermo 90 Installationshandbuch PDF herunterladen (Seite 15)

Webasto Thermo & Comfort N.A., Inc. 16 www.techwebasto.com

Connection to the Vehicle Cooling System Thermo Pro 90

Figure 11: System configured in series with rear heat exchanger in a “dual” circuit heating system.

Figure 12: System configured in the rear heat exchanger circuit using an optional 4-way back-check valve.

Figure 13: System configured with a bypass circuit within the rear heat exchanger circuit where an automated flow

control valve is installed. Bypass is required in the event the valve is closed during heater operation.

1. Coolant supply connection

2. Vehicle heat exchangers

3. Coolant pump

4. Thermo Pro 90 heater

5. Coolant return connection

6. Engine coolant pump

7. Thermostat

1. Coolant supply connection

2. Vehicle heat exchangers

3. Coolant pump

4. Thermo Pro 90 heater

5. Coolant return connection

6. Engine coolant pump

7. Thermostat

4-way back-check valve

1. Coolant supply connection

2. Vehicle heat exchangers

3. Coolant pump

4. Thermo Pro 90 heater

5. Coolant return connection

6. Engine coolant pump

7. Thermostat

8. Automated control valve

9. Wye connectors

10. Bypass hose 13-16mm I.D.

(1/2”- 5/8” I.D.)

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Webasto Thermo 90 Installationshandbuch Seite 15