Webasto Air Top 3500 ST Installation Instructions Manual page 9

Air Top 3500 ST / Air Top 5000 ST
The heater must be installed in such a way that no water can ingress into
it if the vehicle travels through a water hazard for which that vehicle is
licensed.
The openings for the combustion air inlet port, the exhaust outlet port
and the fuel pipe must be sealed if the heater is installed in the interior.
The seal designed and supplied for this purpose must be used (see
Figure 4).
Diesel heaters
Petrol heaters
0 - 30°
Fig. 2: Possible installation locations
0 - 90° 0 - 90° 0 - 90°
0 - 90° 0 - 90°
3.3. To install the heater
The M6 nuts must be tightened with a torque of 6 Nm +1 Nm for installing
the Air Top 3500 ST or Air Top 5000 ST heater.
The installation dimensions and space requirement for service access
are shown in the installation drawing (Figure 1). The specified horizontal
and axial angles must not be exceeded (Figure 2).
Fig. 3: Hole pattern
Fig. 4: Seal
Installation
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