5
I
NSTALLATION
A
IR
T
OP
5000
5-12
38 mm (1.5 in.)
30 mm (1.2 in.)
56 mm (2.2 in.)
Fig. 5-17: Control Element Dimensions
The heater control harness must be plugged into the back of the control element as illustrated in figure 5-18.
Allow enough slack in the harness so that it is not stretched taut. Do not pull on wires!
5.8.1
Fuel Metering Pump Harness
Connect the fuel metering pump harness (located on the underside of the heater) to the fuel pump. Harness connector
will “click” into place when properly inserted.
On cab-over vehicles, an extension harness may be required. The extension harness connects between the heater harness
and the fuel metering pump.
Fig. 5-18: Control Element Harness Plug
ATTENTION!
A Fuel line and fuel metering pump harness kit is available for extending the fuel system in the case of cab-over vehicles.
Order P/N 905555.
5.8.2
Remote Temperature Sensor (Optional)
A remote external temperature sensor kit (includes updated control unit) is available from Webasto under part number
90821A. The remote sensor allows temperature monitoring from a remote location other than the heaters inlet. This is
beneficial where the heater is located in an area where cold air influx does not allow consistent temperature
measurement at the heater inlet.
The internal temperature sensor must be removed prior to the installation of the external sensor kit.
Installation:
The external temperature sensor must be mounted in the vehicle at mid-height on surfaces as vertical as possible.
The temperature sensor must not be located directly in the hot air stream (vehicle’s or heaters heating air).
The temperature sensor must not be mounted in the vicinity of heat sources (e.g. vehicle’s heating system).
The temperature sensor must not be exposed to direct sun radiation.
The temperature sensor must not be mounted behind curtains or partitions out of the reach of heated air.