LAND ROVER FRELANDER 2 2006 Repair Manual

Remove t he dus t covers from the hi gh and low pres sure connecti ons .
13.
Connect t he high and l ow pres s ure l ines t o t he appropriat e
connecti ons .
14.
Open t he valves on t he connect ions .
15.
All ow t he s tat ion t o evacuat e t he A/C sys tem.
16.
17. CAUTION: The s yst em must be evacuat ed immediatl ey
before recharging commences. Del ay bet ween evacuati on and
rechargi ng is not permit ted
Recharging
17.
Clos e t he valves on t he refri gerant st ati on.
18.
Clos e t he valves on t he connecti ons .
19.
Di sconnect t he high and l ow pres s ure connect ions.
20. Inst all t he dus t covers t o t he connect ors .
T orque: 6 Nm 21.
Inst all t he acces s cover.
22.

Publi s hed: 11-May-2011
Climate Control -
Torque SpecificationsDescriptionNmlb-ft
A/C compres sor refridgerant li ne connect ions2418
A/C condens er refridgerant li ne connecti ons107Compres s or lower s upport bracket - 3.2 Pet rol2518
Compressor upper support bracket - 3.2 Petrol:
M104533M82518
M6107
Compres s or mount ing bol ts - Al l engi nes25Condens er core bolt s107
Heater core and evaporat or core hous ing bol ts76
Heater housi ng t o bulkhead Torx bolt s76Pres s ure t rans ducer86
Thermos t at ic expansi on valve bolt s43
Thermos t at ic expansi on valve nut97

Publi s hed: 11-May-2011
Climate Control - Air Distribution and Filtering
Des cript ion and Operat ion
COMPONENT LOCATION
• NOTE: Right Hand Drive (RHD) shown, Left Hand Drive (LHD) si mil ar
ItemPart NumberDescription1-Pass enger face level/si de window regis ter
2-Side wi ndow vent
3-Face l evel duct4-Side wi ndow duct
5-W i nds hiel d duct
6-W i nds hiel d vent7-Side wi ndow vent
8-Dri ver face level/si de window regis ter
9-Dri ver footwell duct10-Ins t rument panel center regi st er
11-Cabi n air fil ter
12-Rear cabin Ri ght Hand (RH) duct13-Rear cabin Left Hand (LH) duct
14-Pass enger footwell duct
15-Ins t rument panel center regi st er

OVERVIEW
The air dis t ri but ion and fil tering s ys tem cont rols the di st ributi on and qual it y of air s uppl ied i nto t he front and rear of t hecabi n. The sys tem cons is t s of:
Air ductsAir regi s ters and vent sA cabin ai r fi lt er.
AIR DUCTS
The air ducts di st ri bute ai r from t he heater as sembl y to the various regi st ers and vents in t he i ns t rument panel and t o t herear of t he vehi cl e.
The face l evel /s ide window duct and t he wi nds hiel d duct form part of t he ins trument panel as sembl y.
Each front footwell duct is a s nap fit into the s i de of the heater as s embly and s ecured t o the cross car beam by a s ingles crew. The front footwel l ducts als o provide a locati on for t he foot well lamps .
The rear cabi n ducts are als o a snap fit i nto the heater as s embly. Each duct runs underneath t he carpet and is secured t ot he fl oor of t he vehi cl e by a si ngl e s crew l ocat ed beneat h t he front seat .
AIR REGISTERS AND VENTS
The air regi s ters allow the vehicle occupant s t o cont rol t he fl ow and di recti on of ai r from t he air ducts . The ins t rumentpanel contains 4 air regi st ers ; 1 mount ed on eit her end of t he i ns t rument panel and 2 mount ed central ly.
The air vents are fixed outl et s . The ins trument panel cont ains 4 ai r vent s ; 1 mounted on ei ther end of t he ins trumentpanel and 2 mount ed along t he t op edge, below the wi ndshi el d.
CABIN AIR FILTER
The cabi n air fil ter is locat ed behind t he RH s i de of the i nst rument panel and is housed wit hin t he heater as sembl y. Thefi lt er removes odors and fine part icl es , i ncludi ng pol len, from t he air ent ering the heater as s embly.

Publi s hed: 11-May-2011
Climate Control - Heating and Ventilation
Des cript ion and Operat ion
COMPONENT LOCATION
ItemPart NumberDescription1-Automat ic Temperat ure Cont rol (ATC) modul e
2-Right Hand (RH) vent il at ion out let
3-Left Hand (LH) vent il at ion out let4-Heater as s embl y
5-Blower mot or cont rol module
OVERVIEW
Two l evels of heat ing and venti lati on are avai lable. High s pecifi cat ion vehicles are fit ted wit h a dual zone aut omati cs ys t em, which can provide di fferent temperature s et t ings for t he LH and RH si des of the cabin. The dual zone s yst em mayals o be fit t ed wit h a pol luti on s ens or t o cont rol t he qual it y of air in the cabin.
Lower s pecifi cat ion vehicles are fit ted wit h a s ingle zone manual s yst em.
The heat er ass embl y for both sys t ems is ins tall ed on t he vehi cl e cent er li ne, bet ween the i nst rument panel and the enginebulkhead.
The ATC module cont rols operat ion of t he blower mot or vi a t he blower mot or control modul e, whi ch is mount ed on t hebulkhead si de of the heat er as s embly cas ing.For addi ti onal i nformat ion, refer to: (412-01 Cli mate Cont rol )

Air Dis t ri but ion and Fi lt ering (Des cript ion and Operat ion),Air Condi ti oning (Descri pti on and Operat ion),Cont rol Component s (Descri pti on and Operat ion).
Some vehicles may al s o be fit ted wi th an auxi li ary heater. For addit ional i nformati on, refer t o: (412-02B Auxil iary Cl imat eControl )
Elect ric Boost er Heater (Des cri pti on and Operati on),Fuel Fired Boos t er Heat er (Des cript ion and O perati on).
AUTOMATIC TEMPERATURE CONTROL MODULE
Air di st ri but ion and temperat ure is control led by the Aut omati c Temperature Cont rol (ATC) modul e, which is integral wi tht he cont rol panel . In res pons e t o commands from t he control panel, t he ATC module controls operat ion of ei ther 3 (si nglezone) or 5 (dual zone) s tepper motors mount ed on t he heater as sembl y cas i ng.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
HEATER ASSEMBLY
ItemPart NumberDescription
1-Blower mot or cont rol module2-Blower mot or
3-Air Condit ioning (A/C) evaporat or
4-Heater core5-Electric boos ter heater
The heat er ass embl y cont rols the t emperat ure of t he air s uppl ied t o t he air di st ri buti on duct s, as di rected by the ATCmodule. The heat er ass embl y is mount ed on t he vehi cl e cent er li ne and compris es t he fol lowing components :

Blower mot orHeater coreCabin ai r fil ter.For addit ional informat ion, refer t o: Air Di st ri buti on and Fi lt eri ng (412-01 Climat e Cont rol, Des cript ion andOperat ion).A/C evaporat or.For addit ional informat ion, refer t o: Air Condit ioning (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Air i ntake flap and s tepper motor.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Air di st ri but ion fl aps and s t epper mot ors .For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Temperature blend flaps and s t epper mot ors .For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Electric boos ter heater (if fi tt ed).For addit ional informat ion, refer t o: Electric Boos ter Heater (412-02 Auxi li ary Cl imat e Control, Des cript ion andOperat ion).
Blower Motor
The blower mot or compris es an open hub, centrifugal fan powered by an elect ric motor. Operati on of the bl ower motor iscont rol led by t he ATC module in conjuncti on wit h t he blower mot or control modul e. The ATC module provi des a Puls e W i dthModulated (PW M) si gnal t o t he blower motor control modul e based on the requi red bl ower speed. The bl ower motor cont rolmodule i nterprets the PW M s ignal as a blower mot or speed and controls t he volt age to t he blower mot or accordingl y.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
Heater Core
The heat er core provi des t he heat s ource to warm the ai r bei ng s uppl ied i nto t he cabin. The heat er core is an alumi num, 2pass , fin and t ube heat exchanger ins t al led acros s t he widt h of t he heat er ass embly. Two al uminum tubes att ached t o t heheat er core extend t hrough t he engi ne bulkhead and connect t o t he engine cool ing s ystem. W hen the engine is runni ng,engi ne cool ant is const antl y ci rculat ed through the heater core by the coolant pump. For addit ional informati on, refer t o:
Engi ne Cool ing (303-03A Engine Cooli ng - I6 3.2L Petrol, Des cript ion and Operat ion),Engi ne Cool ing (303-03B Engine Cooli ng - TD4 2.2L Di esel , Descri pti on and Operat ion).
VENTILATION OUTLETS
The vent il ati on out let s all ow t he free flow of ai r through t he cabi n. The out let s are ins tall ed in the LH and RH rear quart erpanel s, behind the t ail lamps .
Each vent ilat ion out let compri ses a gril le covered by a s oft rubber fl ap, and i s effect ively a non-ret urn val ve. The flapsopen and cl ose aut omat ical ly depending on t he different ial between cabin and out si de air pres s ures .
PRINCIPLES OF OPERATION
Operat ion of t he heat ing and venti lat ion s ys tem is controlled by the ATC modul e.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).

Publi s hed: 11-May-2011
Climate Control - Air Conditioning
Des cript ion and Operat ion
COMPONENT LOCATION
ItemPart NumberDescription1-High press ure li ne
2-High press ure servicing connecti on
3-Low pres s ure s ervi ci ng connect ion4-Thermos tat ic expans ion val ve
5-Evaporat or
6-Refrigerant pres s ure s ensor7-Receiver/Drier
8-Condens er
9-Air Condit ioning (A/C) compres s or10-Low pres s ure l ine
OVERVIEW
The A/C s ys t em t rans fers heat from t he cabi n to the out s ide at mosphere to provide t he heat er ass embly wit h dehumidifiedcool air.
The A/C s ys t em i s a s ealed clos ed l oop sys tem, fil led wi th a charge weight of R134a refri gerant as the heat transfermedium. The refrigerant charge weight for bot h i6 and TD4 vehi cl es is 730 g. O il is added t o t he refri gerant to l ubricat e the

int ernal components of t he A/C compres sor.
Alt hough di fferent unit s, t he A/C compres sors fi tt ed t o both the i 6 petrol engi ne and the TD4 dies el engine are bothvariabl e dis placement uni ts . The dis placement (flow of refrigerant) i s cont rol led t o mat ch t he thermal l oad of theevaporat or.
Operat ion of t he A/C sys t em i s cont roll ed by t he Automat ic Temperat ure Cont rol (ATC) module.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
A/C COMPRESSOR
• NOTE: i6 A/C compress or s hown, TD4 s i mil ar
The A/C compres sor i s dri ven by the engine acces s ory drive belt and ci rculates refrigerant around t he s yst em bycompres si ng low pres sure, low t emperat ure vapor from t he evaporat or and dis chargi ng t he res ult ant hi gh pres s ure, hight emperature vapor t o t he condenser.
To prot ect t he s yst em from exces s ive pres s ure, a press ure rel ief val ve is ins tall ed in the out let s ide of t he A/C compres sor.The pres s ure relief valve vents excess pres sure int o t he engi ne compart ment .
i6
i6 vehi cl es are fit ted wit h a Zexel-Val eo KC-88 variable di s pl acement A/C compres sor. Compres sor di spl acement iscont rol led by t he Engine Control Modul e (ECM) bas ed on current evaporator t emperature and t arget evaporat or temperat ures ignals recei ved from t he ATC module. From thes e values t he ECM calculates t he required compres s or di s pl acement andprovides a Pul se W i dt h Modulat ed (PW M) s ignal t o t he compres s or s olenoid val ve. The compres s or s olenoid val ve ismounted on the rear of t he compres s or and i nterprets the PW M s ignal as a dis placement val ue and alt ers t he posi ti on oft he int ernal s was h plat e accordingly.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
The ECM wi ll als o reduce t he dis placement of the A/C compres s or to i ts mini mum l evel i f 'ful l throt t le' or aut omati ct ransmis s ion 'ki ck down' is request ed. Thi s feat ure i s not pres ent on Gul f s pecificati on vehi cl es.
Compres s or cl ut ch engagement is cont roll ed by t he ECM.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
TD4
TD4 vehicles are fi tt ed wi th a Vis teon VS16 vari able di spl acement A/C compress or. Dis placement i s cont rol led i nt ernall y bya control valve, which i s int egral wit h t he compres sor. The cont rol val ve meas ures the input and out put pres sures of therefri gerant ent eri ng and leaving t he compres sor and control s t he angl e of t he int ernal s was h plat e accordingly.
• NOTE: There i s no external control over A/C compress or s wash plate angl e. Cons equent ly, compress or dis placement isneit her meas ured nor calculated by any ext ernal cont rol component.
Compres s or cl ut ch engagement is cont roll ed by t he ECM.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
CONDENSER

ItemPart NumberDescription
1-Condens er2-Recei ver/Drier
The condens er t rans fers heat from t he refri gerant to t he s urroundi ng air t o convert t he high press ure vapor from thecompres sor i nt o a li qui d. The condens er is ins tall ed immediatel y in front of t he radi at or. Two bracket s on each end tankatt ach the condens er t o the end tanks of the radiator.
The condens er i s clas si fi ed as a s ub-cooli ng condenser and cons i st s of a fin and tube heat exchanger core ins tall edbetween 2 end tanks. Di vis ions in the end tanks s eparat e t he heat exchanger int o a 4 pass upper (condens er) s ecti on anda 2 pas s l ower (s ub-cool er) s ect ion.
The RH end t ank provides t he connecti ons t o t he high press ure li ne from t he A/C compres s or and t he l ow pres s ure l ine t ot he evaporat or.
RECEIVER/DRIER
The receiver/dri er i s i nt egral wit h t he condens er LH end tank and removes s oli d i mpurit ies and mois ture from therefri gerant. It als o acts as a res ervoir for liqui d refri gerant to accommodat e changes of heat load at t he evaporat or.
Refrigerant entering t he receiver dri er pas s es through a fi lt er and a des i ccant pack, then coll ect s in the bas e of t he unitbefore fl owing t hrough t he out let pi pe back t o t he condens er.
REFRIGERANT PRESSURE SENSOR
The refri gerant pres sure s ens or provides t he ATC module wit h a press ure input from the high press ure s ide of t herefri gerant sys tem. The refrigerant pres s ure sens or is hardwi red t o t he ECM, which us es the si gnal t o cont rol operat ion oft he A/C compress or and to cal cul at e t he addit ional l oad on t he engi ne when t he A/C compress or is operat ing. The ECMals o broadcast s t he refri gerant hi gh pres s ure value over t he high s peed Cont rol ler Area Net work (CAN) bus t o the Cent ralJuncti on Box (CJB). The CJB relays t he s ignal t o t he ATC module over t he medium s peed CAN bus to increase the amountof recircul at ed air i f required.
The refri gerant pres sure s ens or is locat ed i n the refrigerant l ine bet ween the condens er and the thermos t ati c expans ionvalve.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
THERMOSTATIC EXPANSION VALVE