Electrical Connections; Control Unit - Butler HL 90 Notice De Montage

HL90 EA_de_en_fr.book Seite 42 Freitag, 8. Oktober 2004 12:34 12

Electrical connections

9 Electrical connections
9.1. Control unit / heater connection
The electrical connection of the heaters is made as shown in Figures
16 to 18.
9.2. Connecting the controls
The heater can be switched on and off using the following Webasto
controls:
- Switch
- Cabin thermostat (mechanical)
- Digital timer (24 hour)
If a digital timer is used, the 8-pin blade terminal type AMP 163-007-0
ID no. 178 764 must be ordered separately.
The controls are connected in accordance with the sample applications
shown in Figures 19 and 20.
12 V
F1 20 A
F2 20 A
F3 10 A
Figure 12: Blade-type fuses (overview)
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24 V
20 A
20 A
7.5 A
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Blade-type fuse holder
ID no. 148 78A
0...30°
0...30°
Figure 13: Fuse holder (installation position)
9.3.

Control unit

NOTE
Control units for the 12 volt version have red lettering, those for the
24 volt version have green lettering.
Fit an insulation housing onto the blade receptacles when connecting to
the switch due to the risk of a short circuit. The cable bridges required
for connection should be made yourself as shown in the connection
diagram.
HL 90
F1 F2 F3
14878 A
1 2 3 4
(+)
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