Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Transmission (4x4)12 Axles and driveshafts13 Brakes14 Steering15 Suspension and wheels16 Heating, air conditioning and auxiliary units17 Electrical equipment18 Body fittings19 Body panels and frame20 Wiring diagrams and electrical functions21 Wiring harnesses22 Connectors and pin-outs23 Fault diagnosis24 Special tools
Fiat Ducato Factory Service Manual (2002-2006)20 · Wiring diagrams and electrical functions
20 · Electrical

Additional heater description

Make
Fiat
Model
Ducato Factory Service Manual
Year
2002–2006
Section
Climate control system › Additional heater description
Wiring diagrams and electrical functionsAdditional heater description

ADDITIONAL HEATER DESCRIPTION

Description

A Webasto "Thermo Top C that operates completely independently of the engine is available as an accessory.

This device makes it possible to:

  • heat the coolant and therefore the engine;
  • heat the passenger compartment and thus defrost the windows.

Device installation requires the heater unit to be connected to the engine cooling, fuel feed and vehicle electrical system interface systems.

The system consists of:

  • a heating unit that essentially consists of a diesel burner;
  • an silencer for fuel combustion exhaust gases;
  • a metering pump fitted on the fuel return pipe that delivers fuel to the burner;
  • a heat exchanger, coaxial to the burner, connected via the vehicle coolant system;
  • an output pipe from the metering pump to the metering device;
  • an electronic control unit for controlling and regulating auxiliary heater system functions built into the heater unit;
  • a digital timer for programming the heater activation time or for immediate manual activation.

The power supply to the heater is protected by special fuses located in the optional junction unit under the instrument facia.

Parts & tools for this job For 2002 Fiat Ducato

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