2011 FORD KUGA Scr

High-Pressure Cutoff Switch
Materials
Specification
Name
WSH-M1C231-B /
6U7J-M1C231-AA
Compressor Oil - Air
Conditioning
Removal
NOTE: Removal steps in this procedure may
contain installation details.
1. Refer to: Air Conditioning (A/C) System Health
and Safety Precautions (100-00 General
Information, Description and Operation).
2. Torque: 8 Nm
Installation
1.
To install, reverse the removal procedure.
2. Coat the o-ring seals.
Material: Compressor Oil - Air Conditioning
(WSH-M1C231-B / 6U7J-M1C231-AA)
refrigerant oil G1065545en
2008.50 Kuga 8/2011 412-01-59
Climate Control
412-01-59
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SECTION 412-02 Auxiliary Climate Control
VEHICLE APPLICATION:
2008.50 Kuga
PAGE
CONTENTS
DESCRIPTION AND OPERATION
412-02-2
Auxiliary Climate Control (Component Location) ................................................................
412-02-4
Auxiliary Climate Control (Overview) ..................................................................................
412-02-4
Initial start-up of the fuel-fired booster heater .....................................................................
412-02-4
Lockout ...............................................................................................................................
412-02-4
Unlocking the control unit ...................................................................................................
412-02-5
Auxiliary Climate Control (System Operation and Component Description) ......................
412-02-5
System Diagram.................................................................................................................
412-02-12
System Operation ...............................................................................................................
412-02-12
Electric Booster Heater ...................................................................................................
412-02-12
Fuel-fired heater - function diagram................................................................................
412-02-13
Boost heat mode.............................................................................................................
412-02-13
Programmable fuel fired booster heater .........................................................................
412-02-13
Immediate start-up of the booster heater ........................................................................
412-02-13
Programmed start-up of the booster heater ....................................................................
412-02-14
Emergency shutoff ..........................................................................................................
412-02-14
Component Description ......................................................................................................412-02-14Electric Booster Heater...................................................................................................
412-02-14Detailed illustration of fuel-fired heater ...........................................................................
412-02-16Flame sensor..................................................................................................................
412-02-16Overheat Sensor.............................................................................................................
412-02-16ECT.................................................................................................................................
412-02-16Water pump....................................................................................................................
412-02-16Fuel pump.......................................................................................................................
REMOVAL AND INSTALLATION 412-02-17
Auxiliary Coolant Flow Pump ..............................................................................................
412-02-18
Electric Booster Heater .......................................................................................................
412-02-21
Fuel Fired Booster Heater — 2.5L Duratec (147kW/200PS) - VI5 .....................................
412-02-25
Fuel Fired Booster Heater Fuel Pump ................................................................................
DISASSEMBLY AND ASSEMBLY 412-02-26
Fuel Fired Booster Heater .................................................................................................. 412-02-1
Auxiliary Climate Control
412-02-1
.
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Programmable fuel fired booster heater
Description
Item
Fuel powered booster heater
1
Fresh air inlet
2
Coolant intake
3
Connector for the booster heater
4 Description
Item
Coolant exhaust
5
Fuel intake
6
Holder for the fuel-fired booster heater
7
Exhaust System
8
Coolant Pump
9 G1066978en
2008.50 Kuga 8/2011 412-02-3
Auxiliary Climate Control
412-02-3
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Auxiliary Climate Control – Overview
Initial start-up of the fuel-fired booster
heater
The fuel-fired booster heater needs to be filled
before being taken into operation for the first time.
Activation of the fuel pump for the fuel-fired booster
heater is controlled by the Ford diagnostic unit.
Lockout
Flame sensor
If the flame goes out independently during
operation of the booster heater, a restart is carried
out. If the booster heater does not ignite within 90
seconds of fuel delivery or if the flame goes out
within 15 minutes of starting, a lockout will be
implemented by the flame sensor.
Lockout can be cancelled by switching the booster
heater off then on again, although this may only
be repeated at most 2 times.
Overheating sensor
In the event of overheating (water shortage, poorly
ventilated coolant circuit), the fuel supply to the
booster heater is interrupted and a lockout occurs.
After the cause of the overheating has been
eliminated, the booster heater can be started again
by switching it off and on, if the coolant temperature
is below 70°C. If the booster heater overheats ten
times in a row, the control unit will be locked.
Unlocking the control unit
Delete the fault memory of the fuel-fired booster
heater after eliminating the cause of the fault using
the Ford diagnostic unit.
G1066980en
2008.50 Kuga 8/2011 412-02-4
Auxiliary Climate Control
412-02-4
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Auxiliary Climate Control – System Operation and Component
Description
System Diagram G1066982en
2008.50 Kuga 8/2011 412-02-5
Auxiliary Climate Control
412-02-5
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Description
Item
Electric Booster HeaterRefer to Component Description: (page
?)
1
GEM (generic electronic module)
2
Outside temperature sensor
3
Climate control system control assembly
4 Description
Item
Generator and Alternator
5
PCM (powertrain control module)
6
Coolant temperature sensor (ECT (engine
coolant temperature) sensor)Refer to Component Description: ECT
(page ?)
7
instrument cluster
8 G1066982en
2008.50 Kuga 8/2011 412-02-7
Auxiliary Climate Control
412-02-7
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Description
Item
Electric Booster HeaterRefer to Component Description: (page
?)
1
GEM2
Outside temperature sensor
3
Climate control system control assembly
4 Description
Item
Generator and Alternator
5
PCM6
Coolant temperature sensor (ECT sensor)Refer to Component Description: ECT
(page ?)
7
instrument cluster
8 G1066982en
2008.50 Kuga 8/2011 412-02-9
Auxiliary Climate Control
412-02-9
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System Operation
Electric Booster Heater
In diesel vehicles which give off little residual heat,
a booster heater is used to heat the passenger
compartment rapidly in the case of low ambient
temperatures.
If the interior temperature has been set to HI, or if
the heater controls have been switched to the
highest setting, the two-zone air conditioning
system sends an "electric booster heater ON"
request signal to the CAN (controller area network)
via the medium speed GEM bus. If a manual air
conditioning system is installed, the signal is
transmitted via a conventional cable connection.
The GEM switches on the electric booster heater
depending on the following parameters:
• Engine coolant temperature is below 60 °C.
• Ambient air temperature is below 10 °C.
• Sufficient generator capacity is available.
The electric booster heater electronics activate
three output stages as a function of a pulse width
modulated signal PWM (pulse width modulation)
generated by the GEM. The output stages switch
the three heating elements of the electric booster
heater ON or OFF individually, whereby the heating
periods of the individual elements can overlap. Due
to the variable switch-on duration, continuously
variable temperature control is possible. The overall
heating power of the three heating elements is
linearly proportional to the PWM signal. If the PWM
signal is below 10% or above 95%, the electric
booster heater is not activated.
The electric booster heater is switched off when
an engine coolant temperature of 70°C or an
ambient air temperature of 20°C is exceeded.
Fuel-fired heater - function diagram G1066982en
2008.50 Kuga 8/2011 412-02-12
Auxiliary Climate Control
412-02-12
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