Mitsubishi Galant. Manual — part 726

HEATER UNIT,HEATER CORE,BLOWER ASSEMBLY, EVAPORATOR UNIT

TSB Revision

HEATING AND AIR CONDITIONING

55-30

H EATER U NIT,H EATER C O R E,B LO WER A SSEM B LY,

EVA PO R ATO R U NIT

HEATER/COOLER UNIT, HEATER CORE AND EVAPORATOR UNIT

M1552011600048

REMOVAL AND INSTALLATION

WARNING

When removing and installing the heater
unit, do not let it bump against the SRS-ECU
or the components.

Pre-removal and Post-installation Operation

•

Front Driver's Side Under Cover, Center Panel
Assembly, Glove Box and Front Passenger's
Side Under Cover Removal and Installation
(Refer to GROUP 52A, Instrument Panel

P.52A-

4

.)

•

Under Cover Removal and Installation (Refer to

P.52A-4

.)

•

Joint Duct Removal and Installation (Refer to

P.55-32

.)

AC002946

1

2

3

4

5

6

7

8

10

9

AC

11

6

N

6

N

PIPING CONNECTION

COMPRESSOR OIL:
SUN PAG 56

4.9 N·m
43.4 in-lb

REMOVAL STEPS

1.

AUTOMATIC COMPRESSOR
CONTROLLER <VEHICLES WITH
A/C>

2.

COVER

3.

THERMISTOR SENSOR

•

REFRIGERANT DISCHARGING
AND CHARGING <VEHICLES
WITH A/C>(REFER TO

P.55-26

.)

<<A>>

4.

A/C PIPE <VEHICLES WITH A/C>

5.

EXPANSION VALVE

6.

O-RING <VEHICLES WITH A/C>

>>A<<

7.

EVAPORATOR

8.

DRAIN HOSE <VEHICLES WITH
A/C>]

•

ENGINE COOLANT DRAINING
AND REFILLING [REFER TO
GROUP 00E, MAINTENANCE
SERVICE - ENGINE COOLANT
(CHANGE)

P.00-50

.]

9.

HEATER HOSE

•

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
ASSEMBLY (REFER TO GROUP
52A, INSTRUMENT PANEL

P.52A-

4

.)

•

FRONT DECK CROSSMEMBER

REMOVAL STEPS (Continued)

HEATER UNIT,HEATER CORE,BLOWER ASSEMBLY, EVAPORATOR UNIT

TSB Revision

HEATING AND AIR CONDITIONING

55-31

REMOVAL SERVICE POINT

<<A>> A/C PIPE REMOVAL

CAUTION

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

INSTALLATION SERVICE POINT

>>A<< EVAPORATOR INSTALLATION
When replacing the evaporator, refill with a specified amount of
compressor oil and install it.

Compressor oil: SUN PAG 56

Quantity: 60 cm

3

(2.0 floz)

•

FLOOR CONSOLE (REFER TO
GROUP 52A, FLOOR CONSOLE

P.52A-11

.)

•

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

P.52A-4

.)

•

FOOT DUCT (LH/RH), REAR
HEATER DUCT <VEHICLES WITH
REAR HEATER DUCT> AND
FOOT CENTER DUCT (REFER
TO

P.55-43

.)

10. HEATER/COOLER UNIT
11. HEATER CORE

REMOVAL STEPS (Continued)

BLOWER ASSEMBLY AND RESISTOR

TSB Revision

HEATING AND AIR CONDITIONING

55-32

B LO WER A SSEM B LY A N D RESISTO R

BLOWER ASSEMBLY AND RESISTOR

M1551002800074

REMOVAL AND INSTALLATION

AC002947

1

2

3

4

5

6

AC

6

(SLIDING
PARTS)

5

AIR PURIFIER ASSEMBLY, JOINT
DUCT AND RESISTOR REMOVAL
STEPS

•

GLOVE BOX AND FRONT
PASSENGER'S UNDER COVER
PLUG (REFER TO GROUP 52A,
INSTRUMENT PANEL

P.52A-4

.)

1.

AIR PURIFIER ASSEMBLY

2.

JOINT DUCT

3.

RESISTOR

•

UNDER COVER(REFER TO

P.52A-4

.)

4.

BLOWER FAN AND MOTOR

AIR PURIFIER ASSEMBLY, JOINT
DUCT AND RESISTOR REMOVAL
STEPS

•

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

P.52A-4

.)

5.

INSIDE/OUTSIDE AIR
CHANGEOVER DAMPER MOTOR

6.

BLOWER ASSEMBLY

COMPRESSOR ASSEMBLY AND TENSION PULLEY

TSB Revision

HEATING AND AIR CONDITIONING

55-33

INSPECTION

M1551002900071

RESISTOR CHECK

Use an ohmmeter to measure the resistance between the
terminals. Check that the measured value is at the standard
value.

Standard value:

BLOWER FAN AND MOTOR CHECK

When battery voltage is applied between the terminals, check
that the motor operates. Also, check that there is no abnormal
noise.

INSIDE/OUTSIDE AIR CHANGEOVER DAMPER
MOTOR CHECK

CAUTION

Cut off the battery voltage when the damper is in the
inside/outside air position.

CO M PR ESSO R A SSEM BLY AN D TEN SIO N PULLEY

COMPRESSOR ASSEMBLY AND TENSION PULLEY

M1552004100052

REMOVAL AND INSTALLATION

Pre-removal Operation

•

Refrigerant Discharging (Refer to

P.55-21

.)

MEASUREMENT TERMINAL

STANDARD VALUE

Ω

Ω

Ω

Ω

Between terminals 3 and 2 (LO)

2.3

Between terminals 3 and 4 (ML)

1.1

Between terminals 3 and 1 (MH)

0.4

AC001402AB

AC001403AB

BATTERY CONNECTION
TERMINALS

LEVER POSITION

1-7

Move to the outside air position

1-5

Move to the inside air position

AC001404

AC001404AB

INSIDE AIR POSITION

OUTSIDE AIR
POSITION