Land Rover Discovery: Auxiliary Climate Control Fuel Fired Booster Heater

COMPONENT LOCATION - FUEL FIRED BOOSTER HEATER WITHOUT REMOTE CONTROL

1. Integrated Control Panel (ICP) with Automatic Temperature Control Module (ATCM)
2. Ambient Air Temperature (AAT) sensor
3. Fuel Fired Booster Heater - fuel pump.
4. Fuel Fired Booster Heater - coolant pump
5. Fuel Fired Booster Heater (FFBH)

COMPONENT LOCATION - FUEL FIRED BOOSTER HEATER WITH REMOTE CONTROL

1. Integrated Control Panel (ICP) with Automatic Temperature Control Module (ATCM)
2. Ambient Air Temperature (AAT) sensor
3. Fuel Fired Booster Heater - fuel pump.
4. Fuel Fired Booster Heater - receiver
5. Fuel Fired Booster Heater - antenna amplifier
6. Fuel Fired Booster Heater - coolant pump
7. Fuel Fired Booster Heater (FFBH)

OVERVIEW

The Fuel Fired Booster Heater (FFBH) is rated at 5kW and compensates for the relatively low-coolant temperatures inherent in the engine. The unit is located behind the right front fender splash shield and heats engine coolant upstream of the heater core.

Operation of the FFBH is controlled by the Automatic Temperature Control Module (ATCM) via a Local Interconnect Network (LIN) bus connection. The operation of the FFBH is influenced by:

• Ambient air temperature.
• Engine coolant temperature.

The FFBH will operate in supplementary mode if the ambient air temperature is lower than 5ºC (41ºF) and stop if ambient temperature reaches 8ºC (46ºF), or will provide a level of heating to the cabin or engine if the ambient is below 15ºC upon a user request by either the:

• FFBH remote control,
• timed climate,
• or TS (Touch Screen).

Operation of the FFBH may also be inhibited if the fuel level drops below a predetermined level.

DESCRIPTION

INTEGRATED CONTROL PANEL WITH AUTOMATIC TEMPERATURE CONTROL MODULE

The Integrated Control Panel (ICP) is mounted in the center console and contains the Automatic Temperature Control Module (ATCM). The ATCM works in conjunction with the Engine Control Module (ECM) to control all aspects of heating, ventilation, and Air Conditioning (A/C).

For additional information, refer to: Control Components (412-01 Climate Control, Description and Operation).

• Fuel Fired Booster Heater - Fuel Pump
• Sectioned View of Typical Fuel Fired Booster Heater
• Remote Control Components
• Auxiliary Climate Control Fuel Fired Booster Heater - Operation

Auxiliary Climate Control Electric Booster HeaterFuel Fired Booster Heater - Fuel Pump

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