Webasto Air Top 2000 ST B Installation Manual - page 6
Webasto Product N.A., Inc.
4
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Regulation for Installation in the Vehicle
Air Top 2000 ST
2.
Regulation for Installation in the Vehicle
Read this installation manual in its entirety before installing this equipment.
2.1
Scope
2.1.1
Subject to the provisions of paragraph 2.1.2, internal combustion heaters must be installed in accordance with
the requirements contained in this Annex.
2.1.2
In the case of class trailers with heaters for liquid fuel, it is presumed that these vehicles comply with the
requirements in this Annex.
2.2
Position of the Heater
2.2.1
Parts of the vehicle body and other components in the immediate vicinity of the heater must be protected
against excessive heat and the danger of contamination by fuel or oil.
2.2.2
The internal combustion heater must not pose a fire hazard even when overheated. This requirement is
deemed to have been met if care is taken during installation to ensure an adequate distance from all parts, as well as
adequate ventilation and if fire-resistant materials or heat shields are used.
2.2.3
For passenger carrying vehicles such as shuttle busses, transit busses, and coaches, the heater must not be
installed in the passenger cabin. A device in a sealed cover, which also meets the requirements set out in paragraph
2.2.2, may be used, however.
2.2.4
The model/ Serial plate or a duplicate thereof (duplicate model/ Serial plate) must be fitted in such a way that
it is still clearly legible when the heater has been installed in the vehicle.
2.2.5
When positioning the heater, all reasonable precautions must be taken to minimize the risk of personal injury
or damage to items in the vehicle.
2.2.6
A clearly visible indicator within the user's field of vision must show when the heater is switched on or off.
2.3
Fuel Supply
2.3.1
The fuel filler neck must not be located in the passenger compartment and must have a tightly fitting cap to
prevent any fuel leaks.
2.3.2
The type of fuel and the fuel filler neck must be clearly identified on heaters for liquid fuel, for which the fuel
supply is separate from the fuel supply for the vehicle.
2.3.3
A sign must be affixed to the fuel filler neck warning that the heater must be switched off before refuelling.
An identical warning must also be included in the manufacturer's operating instructions.
2.4
Exhaust System
2.4.1
The exhaust outlet must be positioned in such a way that exhaust fumes cannot get into the interior of the
vehicle through ventilation devices, hot-air inlets or open windows.
2.5
Combustion Air Inlet
2.5.1
The air for the combustion chamber of the heater must not be extracted from the passenger cabin of the
vehicle.
2.5.2
The air inlet must be positioned in such a way that it cannot be obstructed by other objects.
2.6
Hot Air Inlet
2.6.1
The supply of heating air must consist of either fresh air or recirculated air and must be taken from a clean area
which cannot be contaminated by exhaust fumes from the engine, the internal combustion heater or any other source