Land Rover Discovery: Auxiliary Climate Control
Fuel Fired
Booster Heater
COMPONENT LOCATION - FUEL FIRED BOOSTER HEATER WITHOUT REMOTE CONTROL
- Integrated Control Panel (ICP) with Automatic Temperature Control Module
(ATCM)
- Ambient Air Temperature (AAT) sensor
- Fuel Fired Booster Heater - fuel pump.
- Fuel Fired Booster Heater - coolant pump
- Fuel Fired Booster Heater (FFBH)
COMPONENT LOCATION - FUEL FIRED BOOSTER HEATER WITH REMOTE CONTROL
- Integrated Control Panel (ICP) with Automatic Temperature Control Module
(ATCM)
- Ambient Air Temperature (AAT) sensor
- Fuel Fired Booster Heater - fuel pump.
- Fuel Fired Booster Heater - receiver
- Fuel Fired Booster Heater - antenna amplifier
- Fuel Fired Booster Heater - coolant pump
- 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).
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Fuel line connector
Non return valve
Solenoid coil
Plunger
Filter insert
Fuel line connector
O-ring seal
Spring
Piston
Bush
The Fuel Fired Booster Heater (FFBH), fuel pump is mounted adj
Combustion air fan
Coolant inlet
Coolant outlet
Burner insert
Heat exchanger
Overheat temperature sensor
Exhaust
Fuel inlet
Evaporator
Air inlet
COMBUSTION AIR FAN
The combustion air fan
The remote control system comprises of the following components:
FFBH
FFBH remote control
FFBH receiver
Antenna and antenna amplifier
Antenna harness to connect receiver co-axial cable to existi
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DESCRIPTION
The air conditioning system includes the following features:
B-pillar mounted mid-level vents for row 2 passengers
Face-level vents mounted in the C-pillar on vehicles with 5+2 seating,
for
row 3 passengers
A mist sensor on the windscreen, used to detect conditions likely to
cau
CHECK
Check all trims are located and fitted correctly before performing
this procedure.
NOTE:
The rear quarter panel is a fixed point, all alignment
checks must start from the rear quarter panel.
Check all vehicle gaps and profiles.
Vehicle specific and tolerance checks.
Refer to: Body and Frame (