Mitsubishi Galant. Manual - part 729

REFRIGERANT LINE

TSB Revision

HEATING AND AIR CONDITIONING

55-42

REMOVAL SERVICE POINT

<<A>> HOSE/PIPE/RECEIVER ASSEMBLY 
DISCONNECTION

CAUTION

Seal the hoses completely, otherwise the compressor oil 
and receiver will absorb water vapor easily, possibly 
damaging the compressor and deteriorating performance.
Plug the disconnected hose, the condenser, the evaporator and 
the compressor nipple to prevent foreign material from getting 
into them.

INSTALLATION SERVICE POINT

>>A<< SUCTION HOSE/RECEIVER INSTALLATION
When replacing the suction hose, refill them with a specified amount 
of compressor oil, and then install them.

Compressor oil: SUN PAG 56

Quantity:

••••

Suction hose: 10 cm

3

 (0.3 floz)

AC002949

1

2

3

4

5

7

8

10

9

AC

6

N

PIPING
CONNECTION

COMPRESSOR OIL: 
SUN PAG 56

4.9 N•m
43.4 in-lb    

7

7

1*

7

N

7

N

12 N•m
106.2 in-lb    

4.9 N•m
43.4 in-lb    

25 N•m
18.4 in-lb    

7

N

7

N

NOTE
The clamp marked with an asterrisk is for the 3.0L engine

REMOVAL STEPS

1.

CLAMP

2.

BRACKET

<<A>>

>>A<<

3.

SUCTION HOSE

<<A>>

4.

DISCHARGE HOSE

<<A>>

5.

LIQUID PIPE A

<<A>>

6.

A/C PIPE

7.

O-RING

8.

DUAL PRESSURE SWITCH

9.

RECEIVER BRACKET

<<A>>

>>A<<

10.

RECEIVER ASSEMBLY

REMOVAL STEPS

 (Continued)

VENTILATORS

TSB Revision

HEATING AND AIR CONDITIONING

55-43

••••

Receiver assembly: 10 cm

3

 (0.3 floz)

VEN TILATO R S

VENTILATORS

M1553001600084

REMOVAL AND INSTALLATION

AC002950

1

3

3

8

7

7

6

1

1

6

3

4

2

5

AC

SECTION A-A

SECTION B-B

SECTION C-C

CLIP

CLIP

CLIP

C

C

B

B

A

A

AC002951

9

AC

UNDER COVER REMOVAL

1.

UNDER COVER

SPECIFICATIONS

TSB Revision

HEATING AND AIR CONDITIONING

55-44

NOTE: For the front deck garnish, refer to GROUP 
51, Windshield Wiper and Washer 

P.51-12

.

NOTE: For the center/side air outlet assembly and 
side defroster grille, refer to GROUP 52A, Instrument 
Panel

P.52A-4

.

SPECIFIC ATIO NS

FASTENER TIGHTENING SPECIFICATIONS

M1552012100068

DISTRIBUTION DUCT, SIDE 
DEFROSTER DUCT AND 
DEFROSTER NOZZLE 
ASSEMBLY REMOVAL STEPS

•

INSTRUMENT PANEL 
ASSEMBLY (REFER TO GROUP 
52A, INSTRUMENT PANEL 

P.52A-

4

.)

2.

DISTRIBUTION DUCT

3.

SIDE DEFROSTER DUCT

4.

DEFROSTER NOZZLE 
ASSEMBLY
FOOT DUCT, REAR HEATER 
DUCT AND FOOT CENTER 
DUCT REMOVAL STEPS

1.

UNDER COVER

•

CENTER PANEL ASSEMBLY, 
GLOVE BOX, FRONT DRIVER'S 
SIDE UNDER COVER AND 
FRONT PASSENGER'S SIDE 
UNDER COVER ASSEMBLY 
(REFER TO GROUP 52A, 
INSTRUMENT PANEL 

P.52A-

11

.)

•

FLOOR CONSOLE 
(REFER TO GROUP 52A, 
FLOOR CONSOLE 

P.54A-150

.)

•

RADIO AND TAPE PLAYER 
(REFER TO GROUP 54A, 
AUDIO SYSTEM - RADIO AND 
TAPE PLAYER 

P.54A-150

.)

•

HEATER CONTROL ASSEMBLY 
(REFER TO 

P.55-26

.)

•

INSTRUMENT PANEL CENTER 
REINFORCEMENT (REFER TO 
GROUP 52A, INSTRUMENT 
PANEL 

P.52A-4

.)

5.

FOOT DUCT (LH)

•

JOINT DUCT (REFER TO 　  

P.55-32

.)

6.

FOOT DUCT (RH)

•

FRONT SEAT <VEHICLES WITH 
REAR HEATER DUCT> (REFER 
TO GROUP 52A, FRONT SEAT 

P.55-32

.)

7.

REAR HEATER DUCT 
<VEHICLES WITH REAR 
HEATER DUCT>

8.

FOOT CENTER DUCT
REAR VENTILATION DUCT 
ASSEMBLY REMOVAL STEPS

•

REAR BUMPER ASSEMBLY 
(REFER TO GROUP 51, REAR 
BUMPER 

P.55-32

.)

9.

REAR VENTILATION DUCT 
ASSEMBLY

FOOT DUCT, REAR HEATER 
DUCT AND FOOT CENTER 
DUCT REMOVAL STEPS 

ITEMS

SPECIFICATIONS

A/C pipe mounting bolt (heater/cooler unit side)

4.9 

±

 1.0 N

⋅

m (44 

±

 8 in-lb)

A/C pipe mounting bolt (condenser side)

4.9 

±

 1.0 N

⋅

m (44 

±

 8 in-lb)

A/C pipe mounting nut (suction hose side)

13 

±

 2 N

⋅

m (109 

±

 21 in-lb)

Discharge hose mounting bolt (compressor side)

25 

±

 4 N

⋅

m (18 

±

 4 ft-lb)

Discharge hose mounting nut (condenser side)

4.9 

±

 1.0 N

⋅

m (44 

±

 8 in-lb)

Liquid A mounting nut (condenser side)

4.9 

±

 1.0 N

⋅

m (44 

±

 8 in-lb)

Liquid A mounting nut (receiver assembly side)

4.9 

±

 1.0 N

⋅

m (44 

±

 8 in-lb)

Suction hose mounting bolt (compressor side)

25 

±

 4 N

⋅

m (18 

±

 4 ft-lb)

Suction hose mounting nut (A/C pipe side)

13 

±

 2 N

⋅

m (109 

±

 21 in-lb)

SPECIFICATIONS

TSB Revision

HEATING AND AIR CONDITIONING

55-45

GENERAL SPECIFICATIONS

M1552000200057

SERVICE SPECIFICATIONS

M1552000300076

NOTE: The rpm marked by an asterisk should be 
checked 4 minutes after idling begins.

LUBRICANTS

M1552000400073

ITEMS

MANUAL HEATER

MANUAL AIR 
CONDITIONING

Heater/cooler unit

Full-air mix type providing 
stratified cool and warm air 
flows

Full-air mix type providing 
stratified cool and warm air 
flows

Heater control

Dial type

Dial type

Air conditioning switch

-

Push-button type

Compressor

-

MSC90C (Scroll type)

Dual pressure 
switch kPa 
(psi)

High-pressure 
switch

ON 

→

 OFF

-

2,942 (426.7)

OFF 

→

 ON

-

2,354 (341.4)

Low-pressure 
switch

ON 

→

 OFF

-

196 (28.4)

OFF 

→

 ON

-

221 (32.1)

Refrigerant

Type

-

R134a (HFC-134a)

Amount g (oz)

-

Approximately 670 

−

 710 

(14.6 

−

 15.3)

ITEMS

STANDARD VALUE

Idle speed r/min

2.4L engine

750 

±

 100*

3.0L engine

700 

±

 100*

Idle-up speed r/min

850 

±

 100*

Resistor (for blower motor) 

Ω

LO

2.3

ML

1.1

MH

0.4

Air gap (magnetic clutch) mm (in)

2.4L engine

0.3 

−

 0.5 (0.012 

−

 0.020)

3.0L engine

0.4 

−

 0.6 (0.016 

−

 0.024)

ITEMS

SPECIFIED LUBRICANTS

QUANTITY

Each connection of refrigerant line

SUN PAG 56

As required

Compressor refrigerant unit lubricant cm

3

   (floz)

SUN PAG 56

140 (4.7)