Electrical Connections - Webasto Thermo 230 Installation Instructions Manual

Thermo 230/231/300/301/350

Electrical connections

10 Electrical connections
10.1. Heater connection
IMPORTANT HIGH VOLTAGE:
Danger of death. Disconnect the plug connection to the vehicle before
you open the heater.
Make the electrical connections to the heater as shown in Figure 23:
Automatic circuit diagram for water heaters type Thermo 230,
Thermo 231, Thermo 300, Thermo 301 and Thermo 350
Any plug designs that differ from the standard versions (Figures 23 and
24) are to be requested separately from Webasto.
Use the specified cable cross-sections.
Connect the negative and positive terminals of the heater controller
direct to the battery.
10.2. Connecting the controls
The heater can be switched on and off using the following Webasto
controls:
– Switch, see automatic circuit diagram Figure 23
– Timer, see circuit diagram Figure 24
10.3. Control module
The control module is installed in the heater.
10.4. Economy mode
The connection of the switch for economy mode is shown in the
automatic circuit diagram, Figures 23 and 24.
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