Fig. 701 Ccombinationnector Assignment Combination Ccombinationtrol Unit; General Information - Webasto Air Top Evo 40 Workshop Manual

Wiring Diagrams
7 Wiring Diagrams
7.1

General information

The Air Top Evo 40 / Air Top Evo 55 heaters can be operated
with the rotary selector, a combination timer or the Air Top
Evo Multi Control (MC04) control element.
The wiring diagrams (Fig. 702 to Fig. 707) show the possible
circuits for 12 or 24 V.
• Rotary selector and vehicle fan
• ADR operation with rotary selector
• Combination timer and electrical battery isolation switch
• Air Top Evo Multi Control (MC04) control element
• "Master heater" with rotary selector
• "Slave heater"
Fig. 701 shows the plug assignment on the control unit.
X3
X2
X1 = Drive motor connection
X2 = Glow plug connection
X3 = Blow-out temperature sensor connection
X4 = Fuel pump connection
701
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X4 X5
Fig. 701 Connector assignment on control unit
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Air Top Evo 40 / Air Top Evo 55
Fig. 708 shows the schematic connection of the combination
timer.
Fig. 709 shows the schematic connection of the Air Top Evo
Multi Control (MC04) control element.
See Section 7.2 for wiring diagram legends.
IMPORTANT
The use of force when pressing on the connectors can de-
stroy the mechanical coding, i.e. the reverse polarity protec-
tion or the correct assignment of the connection is no longer
ensured. This can then result in considerable damage to the
heater.
X7 X6
X5 = Connection of external temperature sensor
X6 = D+ and auxiliary drive unit connection
X7 = Heater wiring harness connection
X8 = Exhaust temperature sensor connection
X8
X1