Webasto Air Top 2000 S D Installation Instructions Manual - page 12
Air Top 2000 S, 3500 & 5000 Marine
Webasto Product N.A., Inc.
12
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Installation
In the following we would like to provide some useful advice and tips which, when followed, will ensure
that the heating system fully meets your specific needs.
The installation instruction manual supplied with the heater must always be observed.
General Installation Notes
When installing the heater, the maximum inclination of the marine vessel must be taken into account.
The heater must not be submerged, for example, in the bilge water when the vessel is in an inclined
position. The heater must be installed horizontally and parallel with the longitudinal axis of the vessel.
The positional changes that are normal during heeling are acceptable.
The installation location should not be situated next to the berths or adjacent to the salon, if possible.
The heating air (cool air return) must not be extracted from the engine room.
DO NOT store flammable material in the vicinity of the heater and its exhaust gas line. This also applies to
flammable liquids, dusts, vapors and gases.
Resilient mounting of the heater is recommended in order to absorb vibrations. In most cases, this results
in a significant noise reduction.
Positioning of the Heater
When selecting a mounting location for the heater, keep in mind storage and the movement of gear, i.e.
sail stowage, fender stowage, conduits and service access points, steering gear linkages etc.
In selecting the best mounting location, first consider all installation aspects and the constraints they will
place on the mounting location, i.e. electrical harness routing, fuel pick-up point, fuel line routing, fresh
air and heated air ducting, and most importantly, the exhaust line maximum length and outlet position.
A cockpit locker or storage compartment is a favored installation area where access to the transom for the
exhaust line routing, fuel tank and fuel line, and cockpit fresh air inlet (cool air return) routing are close at
hand. Refer to Figure 1 on previous page.
As an alternative, the heater can be installed within the engine room of Diesel powered boats, however, in
this location it can be difficult to route the exhaust and other components of the heater.
Keep in mind, components such as the fresh air inlet ducting (cool air return) will have to be inspected for
damage on a regular basis to avoid engine room fumes being drawn into the warm air distribution system.
Special Restrictions Concerning Gasoline Powered Vessels!
WARNING!
When installing a Webasto air heater in a gasoline powered boat, the heater MUST NOT be installed in
the engine compartment. The Webasto heater must be installed above the top level of the engine
compartment.
The combustion air supply for the heater MUST NOT be drawn from the engine compartment. The inlet
end of the combustion air intake tube must be positioned above the top level of the engine
compartment to prevent the possibility of drawing flammable vapors and gases into the heater.
Installation