Webasto GBW 300 Installation instructions manual - page 55
Other manuals for GBW 300:
Operating Instructions
Manual is about: NGW 300 (CNG, natural gas)
LGW 300 (LPG, propane)
of
123
Electrical connections
GBW 300
52
14
Electrical connections
14.1. Heater connection
IMPORTANT HIGH VOLTAGE:
Danger of death. Disconnect the plug connection to the vehicle before
you open the heater.
Make the electrical connections between the heater and the control
module as shown in
Figure 25:
System circuit diagram for GBW 300 heaters
(with switch)
Figure 24:
System circuit diagram for GBW 300 heaters
(with timer)
Any system circuit diagrams that differ from the standard version
(Figure 25 / Figure 24) are to be requested separately from Webasto.
Use the specific cable cross-sections.
Connect the negative and positive terminals of the heater controller
direct to the battery. The heater controller has its own positive isolation
relay.