Webasto HL 90 Owner's Manual - page 7
HL 90
1 Introduction
103
Installation Instructions for Webasto Fuel Tanks for
Fuel Supply of Heaters in Vehicles
In busses the installation is not permitted in the passen-
gers or driver’s compartment.
The fuel filler neck must not be located in the passengers
or driver’s compartment of any type of vehicle. Fuel reser-
voirs for carburettor fuel must not be located immediately
behind the vehicle front fairing. They must be away from
the engine to prevent fuel fires in case of accidents.
The same applies to towing vehicles with open cockpit.
It is mandatory to install the seal between the heater
mounting and the vehicle floor to prevent poisonous
exhaust fumes from entering the vehicle interior.
All fuel line connections must be tight, must show no
damage and have to be inspected in regular intervals
(at least in the same frequency as vehicle inspections).
When detecting damages or leaks the heater must not be
operated until repair will have been performed by an
authorised Webasto repair shop.
NOTE
Make heater inoperative by removing fuse. The fuel lines
(Mecanyl hoses) must not be in direct contact with the
exhaust pipe and be provided with a heat insulation as
required to prevent fires.
Keep air intakes and exit ports for warm and heating air
clean and free from foreign objects. Contaminated and
clogged air ducts may cause overheating and response of
the temperature limiter. After an overheat condition with
automatic switch-off check air ducting is free from
contamination and remove all objects that might block the
airstream or have damage repaired by an authorized
Webasto repair shop. Then reset the temperature limiter.
Should these corrective actions not cure the problem
(overheating occurs again), consult an authorized
Webasto repair shop. Never remove the air intake screen
upstream of the heater.
The air jets with adjustable flops must always be open in
a way that the airflow through the heater is not blocked.
A frequently restricted or blocked airflow may cause long
time damage. Should a heater be located in a stowage
compartment, it must be ensured that no flammable
material is stowed in this compartment and that other
material does not restrict the air supply of the heater.
Air lines must be securely fastened to the heater and
the air jets (e.g. with pipe clamps).
Do not step on the heater and do not deposit heavy
objects on or throw against the heater.
Do not throw garments, fabrics or similar material on top
of the heater or in front of the heating air intake or exit.
The warm air flow of the heater must not be restricted or
blocked by easily flammable substances or material like
rags, cleaning wool, etc., to prevent fires and smoke.
Flammable or explosive material or gasses must be kept
away from the vicinity of the heater, the warm air ducting
or the heating airflow.
The heater must not be cleaned with water, fluids or high
pressure cleaners, etc.
Do not switch off heater with the battery master switch or
the battery emergency off switch to prevent possible long
time damage and malfunctions of the heater.
The operating condition of the heater – least on or off –
must be clearly visible.
Non-compliance with the installation instructions and its
procedures will void the warranty by Webasto. The same
applies for repairs performed by unskilled personnel or
not using original spare parts. This will also invalidate the
official marks of conformity and thus the vehicle’s permit
of operation.
Make sure to read the operating instructions before you
operate the heater.
1.5
Corrections and Improvements
Deficiencies, improvements, or proposals for correction
of this workshop manual are to be mailed to:
Webasto Thermosysteme GmbH
Abt. Technische Dokumentation
D-82131 Stockdorf
Telefon:
0 89 / 8 57 94 - 5 42
Telefax:
0 89 / 8 57 94 - 7 57