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BBW 46 / DBW 46
Installation Location
Preferably, the heater should be installed in the engine
compartment in the splash-water protected area of the
front fenders or at the splash wall.
The heater should be installed at a level as low as possible
so as to ensure automatic venting of the heater and the cir-
culating pump. . This is of special importance since the cir-
culating pump is not of the self-priming type.
CAUTION:
The openings of the water connecting pipe sockets must
never, not any installation position, point downward.
CAUTION:
The heater must not be installed :
- in the immediate vicinity of or above hot vehicle parts
- in the direct splashwater area of the wheels
Fig 1:
Installation Positions
Type Plate
The type plate must be located at a place where it is pro-
tected against damage and where it can be easily viewed
once the heater has been installed (or else, a type plate du-
plicate is to be used).
The years not applicable must be removed from the type
plate.
2
2
1
4
5
Fig 2:
Installation Drawing BBW 46 / DBW 46
Mount
The heater mount must be fitted to the vehicle body or the
intermediate support by means of at least four M6 screws.
It is required that washers and lock washers be used.
2
6
3
1
Fuel inlet
2
Water outlet
3
Water inlet
4
Exhaust gas outlet
5
Heater mount
6
Combustion air inlet
In the case of level body surfaces, the washers must have
a minimum diameter of 22 mm.
Do not use sheet metal screws for attaching the mount.
4
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