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INTRODUCTIONWEBASTO DBW SERIES HEATERS
WARNING
Due to the danger of poisoning and suffocation, the heater must not be operated in enclosed areas, such as garages
or workshops, without an exhaust venting system, not even if the start-up is activated by the timer or remote start
device.
At filling stations and fuel depots the heater must be switched off as there is a potential danger of explosions.
Where flammable fumes or dust may build up (e.g. in the vicinity of fuel, coal, wood, cereal grain deposits or similar
situations) the heater must be switched off to prevent explosions.
• When checking the coolant level, proceed in accordance with the vehicle manufacturer’s instructions.
• The coolant in the heating circuit of the heater must contain a minimum of 10% of a quality brand glycol based
anti-freeze.
• The pressure setting of the coolant filler cap should be between 0.4 and 2 bar (6 p.s.i. and 28 p.s.i.).
• The coolant heater may only be operated within the specified operating voltage range designated by type.
• The coolant heater may only be operated with the specified fuel (Diesel 1, Diesel 2, Arctic grade, Kerosene and
certain military spec. fuels).
• The operational state of the heater, i.e. an indication “On” or “Off”, must be clearly visible to the operator.
• If electrical welding is to be done on the vehicle, the main positive and negative feed cables should be
disconnected from the battery and securely connected to the chassis. This is necessary to protect the electronic
control unit from voltage surges.
