Volvo 850. Manual - part 67

         Removal & Installation

         1) Clamp off hoses to heater core in engine compartment at

firewall. Remove center console kick panels. Remove underdash trim

panels. Remove radio amplifier bracket.

         2) Remove drain hose. See Fig. 21. Remove heater core case

screws. Disconnect heater hose pipes. Remove heater core and heater

core case as an assembly by pulling towards rear of vehicle. Remove

heater core from heater core case. To install, reverse removal

procedure.

Fig. 21:  Removing Heater Core

Courtesy of Volvo Cars of North America.

         RECEIVER-DRIER

         Removal & Installation

         1) Disconnect negative battery cable. Discharge A/C system,

using approved refrigerant recovery/recycling equipment. Disconnect

air intake hose and remove hose connector to fan cover. Remove control

unit air intake hoses and Electronic Control Units (ECUs) from control

unit box.

         2) Remove control unit box air intake hoses and remove inlet

hose connector to fan cover. Remove fan cover. Disconnect relays and

wires from fan cover. Remove 4 screws from fan cover and remove relay

casing and spacers. Disconnect 2-pin connector from fan relay and

connector from fan motor. Remove fan cover. See  Fig. 18.

         3) Shield radiator. Disconnect suction pipe from compressor.

Disconnect snap-on connectors from receiver-drier. Remove right side

headlight cover. Remove screw from receiver-drier bracket.

         4) Remove air guide. Remove receiver-drier and bracket. With

bracket suspended from side member, lift receiver/drier out. Remove

receiver-drier from bracket.

         5) To install, reverse removal procedure. When replacing

receiver-drier, fill NEW receiver-drier with 3 ozs. of NEW oil.

Lubricate NEW "O" rings with compressor oil.

         TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Application                                   Ft. Lbs. (N.m)

Compressor Bracket Bolt  ..........................  30 (40)

Compressor Bracket-To-Compressor  .................  30 (40)

Compressor Bracket-To-Frame  ......................  15 (20)

Compressor Inlet Fitting  .........................  15 (20)

Compressor Outlet Fitting  ........................  33 (45)

Compressor Pipe Flange Bolt  ......................  18 (24)

Condenser Inlet & Outlet  .........................  15 (20)

Expansion Valve  ..................................  22 (30)

Receiver-Drier Connection  ........................  22 (30)

                                              INCH Lbs. (N.m)

High Pressure Sensor Connection  ...................  7 (10)

         WIRING DIAGRAMS

Fig. 22:  Wiring Diagram (850 2.3L Turbo - 1 Of 2)

Fig. 23:  Wiring Diagram (850 2.3L Turbo - 2 Of 2)