WABCO OptiTire System Description page 53

Installation
Assembly on the longitudinal beam
Bus
– Use threaded rods for hanging assembly at the roof frame in the cabin.
– For solo bus: Position the ECU at the centre of the vehicle.
– For articulated bus: Position the ECU in front of the articulation in driving direction.
Further possible installation positions are:
in the roof cove opposite the entrances (if the cover is made of plastic)
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in the roof lining
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with articulated buses, in the rear area of the front section (in the geometric centre of all axles)
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with coaches, also on the luggage compartment (if the luggage compartment components are at
„
least in part of wood or plastic)
Mounting the ECU
– Read Chapter "6.2 ECU – The electronic control unit", page 31.
– Mount ECU so that the distance to the sensors is as equal as possible.
Select distance to truck driver's cab such that length of ECU cable (8 m) is sufficient to reach
driver's cab.
In the towing vehicle there is an ideal installation position between the front and rear axles
underneath the frame.
For a good radio connection, the ECU must not be shielded by metal walls in the immediate vicinity,
e.g. by a U-beam.
– For the towing vehicle use the bracket (WABCO part number 446 220 000 4). Screw the bracket to
the vehicle.
– Tighten ECU to bracket using torque of 15 ±1.5 Nm.
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