Unit installation

24
VW T5
With positive wire from terminal (15/75) to connection 10:
Continuous operation with immediate heating as long as ignition is switched on
Without positive wire on connection 10:
Heating time is variably programmable (10 min. to 120 min.), default setting is 120 min.
Legend for
Wiring Dia-
grams
K-wire diagnosis
W bus
Input pin (Pin 16/Connector X6, wire color on wiring harness: white/red (ws/rt)):
"Ventilate“ (fan speed is dependent on position of heater control)
CO
2
setting (see workshop manual)
NOTE:
If a connection is made to Terminal 30, continuous heating operation is possible with ignition
switched off! In this case, no connection may be made to Terminal 15/75!
Fuse present in vehicle
If an external temperature sensor (B4) is used, then the resistor R1 is replaced with the temper-
ature sensor (B4)
Connection only for ADR vehicles
NOTE:
Gray (gr) and violet (vi) wires required for ADR function
Stop signal for battery isolator switch. The stop input (if present) of the isolator switch (S2) must
be connected to the control unit, Pin 15/Connector X6
Wiring Colors Wiring Cross-Sections
Legend for
Wiring Dia-
grams
rt red
< 7.5 m 7.5 - 15 m
gr gray
0.5 mm
2
0.75 mm
2
sw black
0.75 mm
2
1.0 mm
2
br brown
1.0 mm
2
1.5 mm
2
gn green
1.5 mm
2
2.5 mm
2
bl blue
2.5 mm
2
4.0 mm
2
ge yellow
4.0 mm
2
6.0 mm
2
or orange
vi violet
ws white
1
2
3
4
5
6
7
8
9
10
11