Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 593

AC-31

Control Unit (Auto A/C Model)

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

14.Control Unit (Auto A/C Model)

A: REMOVAL

1) Disconnect the ground cable from battery.

2) Remove the ornament panel. <Ref. to EI-52,

ORNAMENT PANEL, REMOVAL, Center Con-

sole.>

3) Remove the screws and claws, and remove the

control module from the ornament panel.

B: INSTALLATION

Install each part in the reverse order of removal.
Tightening torque:

Refer to “COMPONENT” of “General Descrip-

tion”. <Ref. to AC-7, CONTROL MODULE,

COMPONENT, General Description.>

AC-01738

AC-32

Compressor

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

15.Compressor

A: REMOVAL

1) Perform compressor oil return operation. <Ref.

to AC-24, PROCEDURE, Compressor Oil.>

2) Turn the A/C switch to OFF and stop the engine.

3) Using the refrigerant recovery system, dis-

charge refrigerant. <Ref. to AC-19, PROCEDURE,

Refrigerant Recovery Procedure.>

4) Disconnect the ground cable from battery.

5) Remove the V-belts.

• Except for STI model: <Ref. to ME(w/o STI)-38,

REMOVAL, V-belt.>

• STI model: <Ref. to ME(STI)-40, REMOVAL, V-

belt.>

6) Remove the generator. <Ref. to SC(STI)-21,

REMOVAL, Generator.>

7) Remove the bolt and remove the low-pressure

hose and high-pressure hose.
CAUTION:

Seal the disconnected hose and engaging part

of compressor with a plug or vinyl tape to pre-

vent foreign matter from entering.

8) Disconnect the compressor connector.

9) Remove the bolts and remove the compressor

bracket.

NOTE:

Since the compressor cannot be removed by itself,

remove the compressor bracket as a unit.

10) Remove the bolts, then remove the bracket

from the compressor.

AC-01739

AC-01740

AC-01741

AC-33

Compressor

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

B: INSTALLATION

CAUTION:

• Replace the O-rings on hoses or pipes with

new parts, and then apply compressor oil.

• After replacing the compressor, adjust the

amount of the compressor oil. <Ref. to AC-24,

ADJUSTMENT, Compressor Oil.>

1) Install each part in the reverse order of removal.

2) Charge refrigerant. <Ref. to AC-20, PROCE-

DURE, Refrigerant Charging Procedure.>
Tightening torque:

Refer to “COMPONENT” of “General Descrip-

tion”.

Air conditioning unit: <Ref. to AC-9, AIR

CONDITIONING UNIT, COMPONENT, General

Description.>

Compressor: <Ref. to AC-10, COMPRESSOR,

COMPONENT, General Description.>

C: INSPECTION

1. MAGNETIC CLUTCH CLEARANCE

1) Check the clearance of entire circumference

around the drive plate and pulley.
Specification:

0.3 — 0.6 mm (0.0118 — 0.0236 in)

2) Replace the compressor if the inspection result

is not within the standard value.

2. MAGNETIC CLUTCH OPERATION

1) Disconnect the compressor connector.

2) Connect the battery positive (+) terminal to the

terminal of the compressor connector and check

the magnet clutch engagement.

3) If the magnet clutch does not operate normally,

replace the compressor.

AC-34

Condenser

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

16.Condenser

A: REMOVAL

1) Using the refrigerant recovery system, dis-

charge refrigerant. <Ref. to AC-19, PROCEDURE,

Refrigerant Recovery Procedure.>

2) Disconnect the ground cable from battery.

3) Disconnect the high pressure hose and pipe

from the condenser.
CAUTION:

Seal the disconnected hose, pipe and engaging

part of condenser assembly with a plug or vinyl

tape to prevent foreign matter from entering.

4) Remove the bolts and remove the radiator upper

bracket.

5) Remove the front bumper face. <Ref. to EI-31,

FRONT BUMPER FACE, REMOVAL, Front

Bumper.>

6) Remove the bolts, and lift the condenser to pull it

out through space between the radiator and the ra-

diator panel.
CAUTION:

Be careful not to damage the condenser fins. If

a damaged fin is found, repair it using a thin

screwdriver.

B: INSTALLATION

CAUTION:

• Replace the O-rings on hoses or pipes with

new parts, and then apply compressor oil.

• If the condenser has been replaced, add an

appropriate amount of compressor oil to the

compressor. <Ref. to AC-24, ADJUSTMENT,

Compressor Oil.>

• Confirm that lower guide (A) of condenser

fits into holes on radiator panel.

1) Install each part in the reverse order of removal.

2) Charge refrigerant. <Ref. to AC-20, PROCE-

DURE, Refrigerant Charging Procedure.>
Tightening torque:

Refer to “COMPONENT” of “General Descrip-

tion”.

Air conditioning unit: <Ref. to AC-9, AIR

CONDITIONING UNIT, COMPONENT, General

Description.>

Radiator & radiator fan: <Ref. to CO(STI)-4,

RADIATOR AND RADIATOR FAN, COMPO-

NENT, General Description.>

3) Adjust the fog light beam. (Model with fog light)

<Ref. to LI-21, FOG LIGHT AIMING, ADJUST-

MENT, Front Fog Light Assembly.>

AC-01793

AC-01742

AC-01743

AC-00631

(A)

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Политика конфиденциальности