Webasto Air Top Evo 40 Installation Instructions Manual - page 20
20
Air Top Evo 40 | Air Top Evo 55
9 Installation as system with two heaters
9.1 Information on system layout
The system layout is not approved for ADR vehicles.
9.2 System layout
9.3 Installing the system
X
X
Install heaters as described in the installation instructions.
X
X
Make electrical connections at the master heater and slave hea-
ter corresponding to the wiring diagram (see „13 Annex“).
X
X
Connect the control element to the master heater.
X
X
Connect the external temperature sensor to the master heater.
X
X
Switch on voltage supply.
X
X
Carry out initial operation procedure for both heaters.
4
5
3
2
1
Fig. 24: System layout
1
Master heater
2
Slave heater
3
Master to slave wiring harness
4
Control element
5
External temperature sensor
Two heaters can be connected together to form a system. The
heater, to which the control element and the external tempera-
ture sensor are connected, is automatically recognised as the
master heater. The other unit is the slave heater. The heaters
communicate via a serial bus system.