Electrical Connections - Webasto Air Top 3500 Notice De Montage

Electrical connections

11 Electrical connections
All the cables that are not required must be insulated!
NOTE:
If the combination or standard timer is used, a touch-sensitive switch
may be installed in the sleeping section to act as a remote control and
improved convenience. The connections must be made as shown in the
circuit diagrams in Figures 30 and 31.
The electrical connection is made as shown in the system circuit
diagram (Figures 29, 30, 31, 32, 33).
11.1. Connection for installing the heater in a hazchem vehicle
(TRS)
To install the Air Top 3500 D / Air Top 5000 D heaters in hazchem
vehicles, the requirements of ADR/RID part 9 para. 9.2.4.7 –
Combustion heating systems, must also be satisfied. The electrical
connection is made as shown in the circuit diagram, Figs. 32 or 33.
On vehicles without a power take-off the electrical connection must be
made as shown in the system wiring diagram in Figure 33.
NOTE:
The switch S3 must be installed in such a way that a positive potential
is connected to appropriate input of the control module when a pumping
device is switched on.
IMPORTANT
All TRS functions are ineffective if there is no earth at control unit input
X6/1 when the system is switched on.The control unit continues to run
briefly for 20 seconds and then switches to "fault lock-out" operating
mode when a positive voltage is connected to control unit input X6/1
(auxiliary power take-off on) or the engine is switched off.
56
Air Top 3500 / Air Top 5000
IMPORTANT
In accordance with the regulations of the act governing the road/rail
haulage of hazardous materials, heaters are only allowed to be taken
into service with a special manually operated switch fitted in the cab.
If the system is equipped with a combination or standard clock, ensure
that contact 4 on the combination or standard clock remains free.
The heater can then only be taken into service using the immediate heat
button. The use of other timers in ADR vehicles is not permitted.
11.2. Heater connection
To connect the wiring harness, remove the control unit cover on the
heater and connected the wiring harness plug to the control unit.
Fig. 22: To remove the control unit cover
NOTE:
Raise the control unit cover on both sides using a blunt blade (Figure 22
arrows).