Fig. 208 Diesel Burner Without Fuel Preheating; Fig. 209 Petrol Burner With Guard Plate; Fig. 210 Petrol Burner Without Guard Plate; Fig. 211 Fuel Preheating - Webasto Thermo Top V Workshop Manual

Thermo Top V

Fig. 208 Diesel burner without fuel preheating

Fig. 209 Petrol burner with guard plate

Fig. 210 Petrol burner without guard plate

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Guard plate
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For information on removing and installing the burner, see
section 9.2.5 and 9.2.7.
IMPORTANT
Ensure that the correct burner is always used, as otherwise
malfunctions and/or damage will occur on the heater and its
service life will be reduced!
2.2.1 Fuel preheating
(diesel burner with FPH only)
The fuel flows in a spiral in the preheater between a
threaded sleeve and a smooth outer sleeve and is heated by
an electrically operated heating cartridge during starting.
Preheating is briefly activated in the burn-out with a low
output to be able to burn the remaining fuel after the unit
is switched off.
For information on checking fuel preheating, see section
6.3.1.2.
Fuel preheating
Fuel preheating 1
(fuel pipe without SV)

Fig. 211 Fuel preheating

2.2.2 Solenoid valve
(diesel burner with SV only)
The solenoid valve is only used with a certain diesel heater
variant. It ensures that fuel is routed into the combustion
chamber at the correct time in the start-up phase. When the
heater is switched off, the solenoid valve is intended to pre-
vent any fuel from flowing into the combustion chamber.
For information on checking the solenoid valve, see section
6.3.1.3.
The solenoid valve cannot be removed
General description
Fuel preheating 2
(fuel pipe with SV)
NOTE
203