compressor JAGUAR XFR 2010 1.G User Guide

Published: 11-Jul-2014
Climate Control System - General Information - Climate Control System
Diagnosis and Testing

Principles of Operation

For a detailed description of the Climate Control System, refer to the relevant Description and Operation sections in the
Workshop Manual. REFER to:

Air Distribution and Filtering (412-01 Climate Control, Description and Operation), Air Distribution and Filtering (412-01 Climate Control, Description and Operation), Air Distribution and Filtering (412-01 Climate Control, Description and Operation), Heating and Ventilation (412-01 Climate Control, Description and Operation), Heating and Ventilation (412-01 Climate Control, Description and Operation), Heating and Ventilation (412-01 Climate Control, Description and Operation), Air Conditioning (412-01 Climate Control, Description and Operation), Air Conditioning (412-01 Climate Control, Description and Operation), Air Conditioning (412-01 Climate Control, Description and Operation), Control Components (412-01 Climate Control, Description and Operation), Control Components (412-01 Climate Control, Description and Operation), Control Components (412-01 Climate Control, Description and Operation), Electric Booster Heater (412-02 Auxiliary Climate Control, Description and Operation), Electric Booster Heater (412-02 Auxiliary Climate Control, Description and Operation), Electric Booster Heater (412-02 Auxiliary Climate Control, Description and Operation).
Inspection and Verification


WARNING: Servicing must be carried out by personnel familiar with both vehicle system and the charging and testing
equipment. All operations must be carried out in a well ventilated area away from open flame and heat sources.


CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.


NOTE: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
1. Verify the customer concern

2. Visually inspect for obvious signs of damage and system integrity

Visual Inspection
Mechanical Electrical
Coolant level
Hose(s)
Coolant pump
Control flap(s)
Duct(s)
Vent(s)
Cabin air filter
Drive belt
Air conditioning compressor
Thermostatic expansion valve
Evaporator
Receiver drier
Air conditioning condenser
Refrigerant pipes Auxiliary
drive belt
Fuel fired booster heater
Fuel fired booster heater fuel pump
Fuel fired booster heater fuel pipes
Fuse(s)
Wiring harness
Electrical connectors
Blower
Air conditioning compressor
Electric cooling fan
Automatic Temperature Control Module (ATCM)
Refrigerant pressure sensor
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step

4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for
Diagnostic Trouble Codes (DTCs) and refer to the DTC Index

5. Check DDW for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific
customer complaint and carry out the recommendations as required

Published: 11-May-2011
Climate Control System - General Information - Air Conditioning (A/C) System
Recovery, Evacuation and Charging
General Procedures


1. WARNING: Servicing must be carried out by personnel familliar with both
vehicle system and the charging and testing equipment. All operations
must be carried out in a well ventilated area away from open flame and
heat sources.


NOTE: The receiver drier need only be changed under the following
circumstances: There is dirt in the refrigerant circuit ( eg. compressor
seizure ), the system is leaking and refrigerant has been lost to
atmosphere, or the refrigerant circuit has been open more than 24 hours,
due to repair.
Refrigerant recovery.

2. Remove the dust covers from the high and low pressure
connections.



























3. Connect the high and low pressure lines to the appropriate connections.

4. Open the valves on the connections.

5. Turn the valves on the station to the correct positions.

6. Turn the process switch to the correct position.

7. Turn the main switch to 'ON'. www.JagDocs.com

Published: 11-May-2011
Climate Control System - General Information - Inspection and Assembly Requirements
General Procedures

1. Check for leaks using ultraviolet (UV) Lamp.
For additional information, refer to Flourescent Dye Leak Detection in this section.

2. NOTES:


Any time a hose or component connection leak is observed, the
component and fitting must be separated, cleaned and a new O-ring
fitted and lubricated with air conditioning compressor oil.
For additional information, refer to Specifications in this section.

When separating A/C joints, cap the open connections
immediately. Do not leave open to atmosphere.

O-ring seal surfaces must be free of dirt, lint, burrs and scratches. The
O-ring and connector should be lubricated with air conditioning
compressor oil.
For additional information, refer to Specifications in this section.

Published: 11-May-2011
Climate Control System - General Information - Refrigerant Oil Adding TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol
General Procedures



CAUTIONS:


Collect the refrigerant oil in a clean measuring cylinder. Check

Make sure that all openings are sealed. Use new blanking caps.
Be prepared to collect escaping fluids.
NOTE: Removal steps in this procedure may contain installation details.

1. NOTES:


This step only needs to be carried out when replacing
the A/C compressor.


Some variation in the illustrations may occur, but the
essential information is always correct.
Torque: 15 Nm






2. NOTES:


This step only needs to be carried out when replacing
the A/C compressor.


Some variation in the illustrations may occur, but the
essential information is always correct.

Rotate the A/C compressor shaft at least 6 to 8 turns when
draining the refrigerant oil.





3. CAUTIONS:


The refrigerant oil top-up quantity must not exceed the refrigerant
oil fill quantity.


If other A/C components are being renewed in addition to the A/C
compressor, there is no need to top up with additional refrigerant oil,
apart from filling the compressor.
Top up with the calculated quantity of new refrigerant oil.
Refer to: Specifications (412-00, Specifications).

Published: 15-Nov-2013
Climate Control System - General Information - Air Conditioning (A/C)
Compressor Commissioning
General Procedures

Activation

CAUTION: Failure to follow this instruction may result in damage to the component.

1. Set the ignition to the on position, make sure the air conditioning (A/C)
is in the off position.

2. Start the engine and allow to run for a minimum of 5 minutes.

3. Set the heater controls to 22°C, with the fan speed set to 75%.

4. Switch on the A/C system.

5. Open all air vents in the dashboard.

6. Run the A/C system for a minimum of 5 minutes, while the engine is still
at idle speed.

7. Once this is achieved the compressor is stabilized, with the oil being
distributed evenly throughout the system.

Climate Control - Air Conditioning - Component Location
Description and Operation


NOTE: LHD (left-hand drive)  .L vehicle shown, other vehicles sim ilar.

Component Location Published:
11-May-2011



Item Description 1 Evaporator
2 Thermostatic expansion valve
3 Low pressure line
4 Low pressure servicing connection
5
A/C (air conditioning) compressor 6 Receiver/Drier
7 Condenser

Published: 11-May-2011
Climate Control - Air Conditioning - System Operation and Component Description
Description and Operation


General System Operation

To accomplish the transfer of heat, refrigerant is circulated around a sealed system, where it passes through two
pressure/temperature regimes. In each of the regimes the refrigerant changes state, during which process maximum heat
absorption or dissipation occurs.

The low pressure/temperature regime is from the thermostatic expansion valve, through the evaporator to the compressor. The
refrigerant decreases in pressure and temperature at the thermostatic expansion valve, then changes state from a liquid to a
vapor in the evaporator to absorb heat.

The high pressure/temperature regime is from the compressor, through the condenser and receiver drier assembly to the
thermostatic expansion valve. The refrigerant increases in pressure and temperature as it passes through the compressor, then
releases heat and changes state from a vapor to a liquid in the condenser.

Operation of the A/C (air conditioning) system is controlled by the ATC (automatic temperature control) module.
Refer to: Control Components (412-01 Climate Control, Description and Operation). The A/C system works in conjunction with: The air distribution and filtering system.
Refer to: Air Distribution and Filtering (412-01 Climate Control, Description and Operation). The heating and ventilation system.
Refer to: Heating and Ventilation (412-01 Climate Control, Description and Operation).

1 Evaporator 2 Thermostatic expansion valve 3 High pressure servicing connection 4 Refrigerant pressure sensor 5 Engine cooling fan 6 Condenser 7 Receiver/Drier 8 A/C compressor 9 Low pressure servicing connection 10 Blower NOTE: A = Refrigerant liquid; B = Refrigerant vapor; C = Air flow.

1 Pressure relief valve 2 Outlet port 3 Inlet port 4 Solenoid valve 5 Electrical connector 6 Pulley The A/C compressor circulates refrigerant around the system by compressing low pressure, low temperature vapor from the evaporator and discharging the resultant high pressure, high temperature vapor to the condenser.

The A/C compressor is a permanently engaged variable displacement unit which is driven by the engine accessory drive belt. To protect the system from excessive pressure, a pressure relief valve is installed in the outlet side of the A/C compressor. The pressure relief valve vents excess pressure into the engine compartment.

Item Description 1 RH (right-hand) end tank 2 Condenser core 3 LH (left-hand) end tank 4 Mounting brackets (4 off) 5 High pressure compressor discharge line connector block 6 High pressure liquid outlet line connector block 7 Receiver/Drier outlet pipe 8 Receiver/Drier inlet pipe 9 Receiver/Drier The condenser transfers heat from the refrigerant to the surrounding air to convert the high pressure vapor from the
compressor into a liquid. The condenser is installed immediately in front of the radiator. Two brackets on each end tank attach
the condenser to the end tanks of the radiator.

The condenser is classified as a sub-cooling condenser and consists of a fin and tube heat exchanger core installed between
two end tanks. Divisions in the end tanks separate the heat exchanger into a four pass upper (condenser) section and a two
pass lower (sub-cooler) section.

The LH end tank provides the connections to the high pressure line from the A/C compressor and the high pressure liquid line to the evaporator.
The RH end tank provides the connections to the receiver drier.
Receiver Drier

The receiver drier is integrated into the RH end tank of the condenser to remove solid impurities and moisture from the refrigerant. It also provides a reservoir for liquid refrigerant to accommodate changes of heat load at the evaporator.


NOTE: The receiver drier is part of the condenser assembly and is not serviceable separately.

Refrigerant entering the receiver drier passes through a filter and a desiccant pack, then collects in the base of the unit before
flowing through the outlet pipe back to the condenser. Condenser