Webasto Air Top 2000 S D Installation Instructions Manual - Air Top 2000 S
Installation Location
It is recommended that the metering pump be installed in a
cool location. The permissible ambient temperature must
not exceed a temperature of + 20°C at any given opera-
ting state.
Metering pump and fuel lines must not be mounted within
the radiation range of hot vehicle parts. If necessary, a radi-
ation protection is to be provided.
Installation and Mounting
The metering pump is to be attached by a vibration-damp-
ing suspension device. The installation position is re-
stricted as shown in Figs. 16 and 17 in order to ensure
proper self-bleeding of the system.
Owing to the hazard of corrosion, only genuine Webasto
parts may be used for the plug connection between meter-
ing pump and metering pump cable harness.
Fuel Filter
If dirt in the fuel must be reckoned with, only Webasto fil-
ter, order no. 487 171, should be used. The filter is prefer-
ably be installed in vertical position, where this is not
possible, it may also be installed horizontally (direction of
flow to be observed).
Combustion Air Supply
On no account may the combustion air be extracted from
areas where persons are present. The combustion air in-
take opening must
not
point in the direction of travel. It
must be so located that the possibility of clogging due to
contamination n is remote.
NOTE: Unique to Petrol-Operated Heaters!
The combustion air must be drawn in at a sufficiently cool,
splash-water protected location by means of the combus-
tion air line.
If the heater is located in an enclosed installation housing,
combustion air must be drawn in from the outside of the ve-
hicle and the exhaust gas be discharged to the atmos-
phere. The lead-through openings must be so designed
that the possibility of exhaust fumes entering the interior of
the vehicle is remote.
For further regulations refer to the Legal Provisions.
Exhaust Pipe
Rigid pipes made of unalloyed or alloyed steel with a mini-
mum wall thickness of 1.0 mm, or flexible tubes of alloyed
steel only are to be used as exhaust pipes. The exhaust
pipe is to be secured to the heater, e.g. by means of a
clamp. For further regulations refer to the Legal Provisions.
The exhaust silencer is preferably to be mounted in the vi-
cinity of the heater.
Operation of the heater is also permissible without exhaust
silencer.
Combustion Air Intake and Exhaust Pipes
Both pipes leading away from the heater are to be routed
in a downward pitch. If this is not possible, a ø 5mm con-
densate drain hole is to be provided at the lowermost point.
The lines must not point into the direction of travel.
0 - 90°
Fig. 18:
Fuel Filter
Fig. 19:
Exhaust Silencer
Direction of flow optional
Fig. 20:
Prevent condensation from forming
Fig. 21:
Lines not in direction of travel
Air Top 2000 S
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