Installation
Air Top Evo 3900 / Air Top Evo 5500
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3
Installation
IMPORTANT
The statutory regulations governing installation (see chapter 1, "Statutory
regulations governing installation") must be adhered to. The requirements
of the latest version of the ADR must also be observed for the installing the
heater into vehicles used to transport hazardous substances.
The heater must not be operated without the control unit cover (this will
cause the heater to overheat).
3.1.
Air Top Evo 3900 / Air Top Evo 5500 installation situation
NOTE:
Check the installation situation of the relevant vehicle type.
3.2.
Installation location
The heater may be fitted both in the interior or on the exterior of the vehi-
cle.
When using the vehicle in normal road traffic, the heater may only
be installed with contact protection if it is located within reach of
the driver.
If it is installed on the exterior ensure that the heater is fitted in a position
where it is protected from splashing water and spray. 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 3).
3.3.
To install the heater
The M6 nuts must be tightened with a torque of 6 Nm (-0 Nm,+1 Nm) for
installing the Air Top Evo 3900 or Air Top Evo 5500 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).
A seal (Figure 3) must be fitted between the heater and the vehicle body.
This seal must be replaced each time the heater is installed
. The sup-
port area for the heater foot
must be flat
. A special tools can be pur-
chased from Webasto to drill the holes and, if necessary, smooth the sup-
port area. The seal can compensate for unevenness of max. 1 mm.
IMPORTANT
After installation, check that the casing is not in contact with any parts of
the vehicle body. A failure to do this may result in the hot air fan blocking.
Installation_Instructions_Air_Top_Evo_3900_5500_de_en_nl.book Page 56 Wednesday, November 3, 2010 11:58 AM
