Daewoo Musso. Manual

MANUAL & SEMIAUTO-HVAC 7B/C-3

Application

Type

Expansion Valve

Resistance

Thermo Amp

Description

Tank laminated

Uniform external pressure type (1.5 RT)

4 stage (Coil resistance)

Sensor type OFF : 2±0.5°C, DIFF : 2±0.5°C

EVAPORATOR

Application

Heater Core Type

Heating Capacity

Heater Core Size (LxWxT)

Description

2-ROW

4,600 kcal/h (AT 300 CMH)

219.5 x 151.8 x 52.0

HEATER UNIT

Application

Condenser Bolt

Condenser Fan Nut

Condenser Bolt

Receiver Drier Pipe Bolt

Receiver Drier Pipe Bolt (Condenser)

Pressure Pipe Bolt

Pressure Mounting Bolt

4-6

5-8

4-6

20-30

20-26

FASTENER TIGHTENING SPECIFICATIONS

MANUAL & SEMIAUTO-HVAC 7B/C-5

Action

Clean oily plate using cleaning agent.

Charge battery or check for cause.

Check wire continuity

Check A/C switch and fan switch for continuity and ground.

DEFECTIVES IN FAN MOTOR CIRCUIT

Fan Motor Does Not Run

Checks

Blown fuse

Battery voltage is low

Faulty wiring

Faulty ground

Action

Check for short and replace fuse.

Check battery voltage.

Check connectors’ connection.
Do not apply grease. This can cause voltage down.

Remove body painting and completely ground,
Tighten ground bolts and make sure body ground connection.

Checks

Blown resister temperature fuse

Air leakage in parts connection

Action

Replace resistor.

Check heater, cooling unit and blower for proper connection.

Fan Motor Runs in ‘4’position Only (‘3’, ‘2’, ‘1’ : Does Not Run)

Frosted Evaporator

DEFECTIVES IN COMPRESSOR CIRCUIT

Compressor Does Not Run

Checks

Faulty thermo amp

Action

Frosted evaporator reduces cooling capacity.

Off compressor and maximize blowing capacity

Checks

Faulty high/low pressure

Faulty A/C relay

Action

Check compressor magnet voltage supply.

A/C relay.

Checks

Oily clutch plate

Low voltage

Faulty electric connection or operation

Magnetic Clutch Slips /Idles

Checks

Clogged or blocked intake grille

Action

Clogged or blocked intake grille reduces blowing capacity.

Motor Runs With Poor Blowing

Checks

Excessive clearance between

Clutch plate and clutch coil

Action

Adjust clutch clearance (0.2-0.6mm).

Magnetic Clutch Plays By Hand Only

Daewoo Musso. Manual - part 317