Goldstar LWN2432BAG, LWN2432BCG, Y5USC24-6A, LWC243NSAB0, Y5USC18-6A Service Manual

...

ROOM AIR CONDITIONER

SERVICE MANUAL

CAUTION

- BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

- ONLY FOR AUTHORIZED SERVICE

MODELS: R1402/R1802/R1801H/M1802/R2102/R2402

R1803/R1804/R1803H/M1803R/R2103/R2403 LWM1836BCG/LWM1836BAG/LWM1836BAS/LWC243NSAB0 Y5USC18-6A/Y5USC24-6A/LWN2432BCG/LWN2432BAG

website http://biz.LGservice.com e-mail http://www.LGEservice.com/techsup.html

—2—

1. PREFACE

1.1 SAFETY PRECAUTIONS ...............................2

1.2 INSULATION RESISTANCE TEST.................2

1.3 SPECIFICATIONS ..........................................3

1.4 FEATURES.....................................................7

1.5 CONTROL LOCATIONS.................................7

DISASSEMBLY INSTRUCTIONS

2.1 MECHANICAL PARTS..................................10

2.1.1 FRONT GRILLE...................................10

2.1.2 CABINET..............................................10

2.1.3 CONTROL BOX...................................10

2.2 AIR HANDLING PARTS................................11

2.2.1 COVER (AT THE TOP)........................11

2.2.2 BLOWER..............................................11

2.2.3 FAN......................................................12

2.2.4 SHROUD..............................................12

2.3 ELECTRICAL PARTS...................................12

2.3.1 MOTOR................................................12

2.3.2 COMPRESSOR...................................12

2.3.3 CAPACITOR........................................13

2.3.4 POWER CORD....................................13

2.3.5 THERMOSTAT ....................................13

2.3.6 ROTARY SWITCH...............................14

2.3.7 SYNCHRONOUS MOTOR ..................14

2.4 REFRIGERATION CYCLE............................15

2.4.1 CONDENSER......................................15

2.4.2 EVAPORATOR....................................15

2.4.3 CAPILLARY TUBE...............................15

INSTALLATION

3.1 HOW TO INSTALL THE UNIT ......................18

3.2

HOW TO USE THE REVERSIBLE INLET GRILLE

.......

3.3 WINDOW REQUIREMENTS.........................19

3.4 INSTALLATION KITS CONTENTS...............19

3.5 SUGGESTED TOOL REQUIREMENTS.......20

3.6 CABINET INSTALLATION............................21

TROUBLESHOOTING GUIDE

4.1 OUTSIDE DIMENSIONS...............................23

4.2 PIPING SYSTEM ..........................................23

4.3 TROUBLESHOOTING GUIDE......................24

5. SCHEMATIC DIAGRAM

5.1 CIRCUIT DIAGRAM......................................29

5.2 ELECTRONIC CONTROL DEVICE..............34

5.3

COMPONENTS LOCATION(FOR MAIN P.C.B ASM

).......36

5.4

COMPONENTS LOCATION(FOR DISPLAY P.C.B ASM)

.......37

6. EXPLODED VIEW..................................38

7. REPLACEMENT PARTS LIST.......40

1. PREFACE

This

SERVICE MANUAL provides various service information, including the mechanical and electrical

parts etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

1.1 SAFETY PRECAUTIONS

1. When servicing the unit, set the ROTARY SWITCH or POWER SWITCH to OFF and unplug the power cord.

2. Observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

3. After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock hazards.

1.2

INSULATION RESISTANCE TEST

1. Unplug the power cord and connect a jumper between 2 pins (black and white).

2. The grounding conductor (green or green & yellow) is to be open.

3. Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all the positions (except OFF or O) of the ROTARY SWITCH.

4. The value should be over 1MΩ.

CONTENTS

—3—

1.3 SPECIFICATIONS

1.3.1 FOR R1402/R1802/R2102/R2402

R1402 R1802 R2102 R2402

REMARK

POWER SUPPLY

1Ø, 115V, 60Hz 1Ø, 208/230V, 60Hz

COOLING CAPACITY (Btu/h) 14,000

17,500/ 18,000

20,500/21,000 23,500/24,000 INPUT (W) 1,380 1,800/ 1,850 2,410/2,470 2,760/2,820 RUNNING CURRENT (A) 12.0 9.0/ 8.3 11.8/10.8 13.7/12.7 REFRIGERANT (R-22) CHARGE(g)

680(24.0 OZ) 800(28.2 OZ) 730(25.8 OZ) 890(31.4 OZ) INDOOR (°C) 26.7(DB) 19.4(WB) OUTDOOR (°C) 35(DB) 23.9(WB)

EVAPORATOR

3 ROW 15 STACKS

4 ROW 18 STACKS CONDENSER FAN, INDOOR BLOWER FAN, OUTDOOR PROPELLER TYPE FAN WITH SLINGER-RING FAN SPEEDS, FAN/COOLING 2/3 FAN MOTOR 6 POLES OPERATION CONTROL ROTARY SWITCH ROOM TEMP. CONTROL THERMOSTAT

VERTICAL LOUVER(RIGHT & LEFT)

HORIZONTAL LOUVER(UP & DOWN)

CONSTRUCTION SLIDE IN-OUT CHASSIS

COMPRESSOR FAN MOTOR INTERNAL THERMAL PROTECTOR

1.8m(3WIRE WITH GROUNDING)

1.6m (3 WIRE WITH GROUNDING)

1.3m (3 WIRE WITH GROUNDING)

ATTACHMENT PLUG(CORD-CONNECTED TYPE) DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT (lbs/kg) 117/53 120/54 143/65 146/66 OUTSIDE DIMENSION (inch) 26 x 16

/32 x 269/16 26 x 1627/32 x 30

/16

(W x H x D) (mm) 660 x 428 x 675 660 x 428 x 770

MODELS

ITEMS

AIR DIRECTION CONTROL

PROTECTOR

POWER CORD

OPERATING TEMPERATURE

2 ROW 19 STACKS, L-BENDED TYPE

2 ROW 19 STACKS, U-TYPE

INTERNAL OVERLOAD PROTECTOR

EXTERNAL OVERLOAD PROTECTOR

NOTE: Please refer to Label Quality on the product since this specification may be changed for improving

performance

—4—

1.3.2 FOR R1803/R1804/R2103/R2403/LWC243NSAB0

POWER SUPPLY 1Ø, 208/230V, 60Hz COOLING CAPACITY (Btu/h) 17,500/ 18,000 20,500/21,000 23,500/24,000 INPUT (W) 1,800/ 1,850 2,410/2,470 2,760/2,820 RUNNING CURRENT (A) 9.0/ 8.3 11.8/10.8 13.7/12.7/12.9 REFRIGERANT (R-22) CHARGE(g) 750(26.5 OZ) 710(25.0 OZ) 980(34.6 OZ)

INDOOR (°C) 26.7(DB) 19.4(WB)

OUTDOOR (°C) 35(DB) 23.9(WB) EVAPORATOR 3 ROW 18 STACKS 3 ROW 15 STACKS CONDENSER 2 ROW 19 STACKS, L-BENDED TYPE

2 ROW 19 STACKS, U-TYPE FAN, INDOOR BLOWER FAN, OUTDOOR PROPELLER TYPE FAN WITH SLINGER-RING FAN SPEEDS, FAN/COOLING 2/3 FAN MOTOR 6 POLES OPERATION CONTROL ROTARY SWITCH ROOM TEMP. CONTROL THERMOSTAT

VERTICAL LOUVER(RIGHT & LEFT)

HORIZONTAL LOUVER(UP & DOWN)

CONSTRUCTION SLIDE IN-OUT CHASSIS

COMPRESSOR INTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR

1.6m (3 WIRE WITH GROUNDING)

1.3m (3 WIRE WITH GROUNDING)

ATTACHMENT PLUG(CORD-CONNECTED TYPE) DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT (lbs/kg) 120/54 143/65 146/66 OUTSIDE DIMENSION (inch) 26 x 16

/32 x 26

/16

26 x 16

/32 x 30

/16

(W x H x D) (mm) 660 x 428 x 675 660 x 428 x 770

R1803

R1804

LWM1836BAG/BAS/BCG

Y5USC18-6A

R2103

R2403/Y5USC24-6A LWN2432BCG/BAG

LWC243NSAB0

REMARK

MODELS

ITEMS

AIR DIRECTION CONTROL

PROTECTOR

POWER CORD

OPERATING TEMPERATURE

NOTE: Please refer to Label Quality on the product since this specification may be changed for improving

performance

—5—

1.3.3 FOR R1801H

POWER SUPPLY

CAPACITY (Btu/h)

COOLING

INPUT (W) RUNNING CURRENT

(A) E.E.R. (Btu/W.h) CAPACITY (Btu/h)

HEATING INPUT (W)

RUNNING CURRENT

(A)

COOLING

INDOOR (°C)

OUTDOOR (°C)

HEATING

INDOOR (°C)

OUTDOOR (°C) REFRIGERANT (R-22) CHARGE(g) EVAPORATOR CONDENSER FAN, INDOOR FAN, OUTDOOR FAN SPEEDS (FAN/COOLING/HEATING) FAN MOTOR OPERATION CONTROL ROOM TEMP. CONTROL

AIR DIRECTION CONTROL

CONSTRUCTION ELECTRIC HEATER

COMPRESSOR

PROTECTOR

FAN MOTOR ELECTRIC HEATER

POWER CORD

DRAIN SYSTEM NET WEIGHT (lbs/kg) OUTSIDE DIMENSION (inch)

(W x H x D) (mm)

1Ø, 208/ 230V, 60Hz

17,500/ 18,000

1,940/ 2,000 1,800/1,850

9.6/ 9.0 9.0/8.3

9.0 9.7 9,800/ 12,000

3,100/ 3,670

15.0/ 16.0

26.7 (DB) 19.4 (WB) 35 (DB) 23.9 (WB)

21.1 (DB) 15.6 (WB)

8.3 (DB) 6.1 (WB)

740 (26.1 OZ) 750(26.5 OZ)

3 ROW 15 STACKS 3 ROW 18 STACKS

2 ROW 19 STACKS, L-BENDED TYPE

BLOWER

PROPELLER TYPE FAN WITH SLINGER-RING

1/ 2/ 2

6 POLES

ROTARY SWITCH

THERMOSTAT

VERTICAL LOUVER (RIGHT & LEFT)

HORIZONTAL LOUVER (UP & DOWN)

SLIDE IN-OUT CHASSIS

3.5 KW, 230V

INTERNAL OVERLOAD PROTECTOR

INTERANL THERMAL PROTECTOR

FUSE LINK, BIMETAL THERMOSTAT

1.6m (3 WIRE WITH GROUDING)

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

DRAIN PIPE OR SPLASHED BY FAN SLINGER

123/ 56

26 x 1627/32 x 269/16

660 x 428 x 675

MODELS

ITEMS

OPERATING TEMPERATURE

LOUVEREDFIN TYPE

R1801H R1803H

REMARK

NOTE: Please refer to Label Quality on the product since this specification may be changed for improving

performance

—6—

1.3.4 FOR M1802/M1803R/M1804R

POWER SUPPLY 1Ø, 208/230V, 60Hz COOLING CAPACITY (Btu/h) 17,500/ 18,000 INPUT (W) 1,800/ 1,850 RUNNING CURRENT (A) 9.0/ 8.3 REFRIGERANT (R-22) CHARGE(g) 800(28.2 OZ) 750(26.5 OZ)

INDOOR (°C) 26.7(DB) 19.4(WB)

OUTDOOR (°C) 35(DB) 23.9(WB) EVAPORATOR 3 ROW 15 STACKS 3 ROW 18 STACKS CONDENSER FAN, INDOOR BLOWER FAN, OUTDOOR PROPELLER TYPE FAN WITH SLINGER-RING FAN SPEEDS, FAN/COOLING 3/3 FAN MOTOR 6 POLES OPERATION CONTROL TOUCH PANEL ROOM TEMP. CONTROL THERMISTOR

VERTICAL LOUVER(RIGHT & LEFT)

HORIZONTAL LOUVER(UP & DOWN)

CONSTRUCTION SLIDE IN-OUT CHASSIS

COMPRESSOR INTERNAL OVERLOAD PROTECTOR FAN MOTOR INTERNAL THERMAL PROTECTOR

1.6m (3 WIRE WITH GROUNDING)

ATTACHMENT PLUG(CORD-CONNECTED TYPE) DRAIN SYSTEM DRAIN PIPE OR SPLASHED BY FAN SLINGER NET WEIGHT (lbs/kg) 120/54 OUTSIDE DIMENSION (inch) 26 x 16

/32

x 26

/16

(W x H x D) (mm) 660 x 428 x 675

M1802 M1803R REMARK

MODELS

ITEMS

AIR DIRECTION CONTROL

PROTECTOR

POWER CORD

OPERATING TEMPERATURE

LOUVEREDFIN TYPE

2 ROW 19 STACKS, L-BENDED TYPE

NOTE: Please refer to Label Quality on the product since this specification may be changed for improving

performance

1.4 FEATURES

• Designed for cooling only.

• Powerful and quiet cooling.

• Slide-in and slide-out chassis for the simple installation and service.

• Reversible inlet grille.

1.5 CONTROL LOCATIONS

1.5.1 COOLING ONLY MODEL

• VENTILATION

The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions. When a fresh air is necessary in the room, set the ventilation lever to the OPEN position. The damper is opened and room air is exhausted.

NOTE: Before using the ventilation feature,

make the lever, as shown. First, pull down part to horizontal line with part .

• THERMOSTAT

Thermostat will automatically control the temperature of the room. Select the higher number for the lower temperature of the room. The temperature is selected by positioning the knob to the desired position.

The 5 or 6 position is a normal setting for average conditions.

• OPERATION

OFF : Turns the air conditioner off. MED FAN : Permits the

medium

fan speed operation

without cooling.

LOW FAN : Permits the low fan speed operation

without cooling.

HIGH COOL: Permits cooling with the high fan speed

operation.

MED COOL : Permits cooling with the medium fan

speed operation.

LOW COOL: Permits cooling with the low fan speed

operation.

• AUTO SWING

ON : Air swing is operated while OPERATION knob

is set to the COOL position.

OFF :Stops the operation of air swing.

• Side air-intake, side cooled-air discharge.

• Built in adjustable THERMOSTAT.

• Washable one-touch filter.

• Compact size.

—7—

Med

Fan

Off

Low

Fan

High Cool

Med Cool

Low Cool

Operation

Thermostat

Off On

Auto Swing

Part A

Part B

VENTCLOSE OPEN

1.5.2 COOLING AND HEATING MODEL

• CAUTION

When the air conditioner has been performing its cooling operation and is turned off or set to the fan position, wait at least 3 minutes before resetting to the cooling operation again.

• THERMOSTAT

Turn the thermostat control to the desired setting. The centrol position is a normal setting for average conditions. You can change this setting, if necessary, in accordance with your temperature preference.

The thermostat automatically controls cooling or heating, but the fan runs continuously whenever the air conditioner is in operation. If the room is too warm, turn the thermostat control clockwise. If the room is too cool, turn the themostat control anticlockwise.

• OPERATION

OFF ( ) :Turns the air conditioner off. FAN ( ) : Permits the low fan speed

operation without cooling (heating).

LOW COOL ( ) : Permits cooling with the low fan

speed operation.

HIGH COOL( ) : Permits cooling with the high fan

speed operation.

LOW HEAT ( ) : Permits heating with the low fan

speed operation.

HIGH HEAT ( ) : Permits heating with the high fan

speed operation.

• AUTO SWING

ON : Starts the operation of air swing. OFF : Stops the operation of air swing.

• Before you turn the unit off, please press the Auto Swing switch to off.

—8—

Thermostat

Operation

Wait Three Minutes

Before Restarting

CoolerWarmer

Off

Auto Swing

Off On

Fan Fan

Low Heat Low Cool

High CoolHigh Heat

A slight heat odor may come from the unit when first switching to HEAT after the cooling season is over. This odor, caused by fine dust particles on the heater, will disappear quickly.

—9—

POWER BUTTON

Operation starts, when this button is pressed and stops when you press the button again.

OPERATION MODE SELECTION BUTTON

Select Cooling, or Fan or Dehumidification(Dry) mode with button. (Dry mode is not to all models.)

ON/OFF TIMER BUTTON

Set the time of starting and stopping operation. The timer is set by 1 hour.

FAN SPEED SELECTOR

Select the fan speed in three steps.

- High [F3] ➔ Low[F1] ➔ Med[F2]➔ High[F3]... .

ROOM TEMPERATURE SETTING BUTTON

Control the room temperature within a range of 60°F to 86°F by 1°F.

ENERGY SAVER

The fan stops when the compressor stops cooling. Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed.

AUTO SWING BUTTON

Control the horizontal air direction by air swing system.

Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air

conditioner or if there are obstacles between the Remote Control unit and the air conditioner.

1.5.3 COOLING ONLY MODEL WITH TOUCH TYPE

—10—

2.1 MECHANICAL PARTS

2.1.1 FRONT GRILLE

1. Open the inlet grille upward or downward.

2. Remove the screw which fastens the front grille.

3. Pull the front grille from the right side.

4. Remove the front grille. (See Fig. 1)

5. Re-install the component by referring to the removal procedure.

NOTE: Mark ∆ of inlet grille means opening direction.

2.1.2 CABINET

1. After disassembling the FRONT GRILLE, remove the screws which fasten the cabinet at both sides. Keep these for later use.

2. Remove the two screws which fasten the cabinet at back. (See Fig. 2)

3. Pull the base pan forward.

2.1.3 CONTROL BOX

1. Remove the front grille. (Refer to section 2.1.1)

2. Pull the base pan forward so that you can remove the 2 screws which fasten the cover control at the right side. (See Fig. 3)

3. Remove the 3 screws which fasten the control box. (See Fig. 3)

4. Discharge the capacitor by placing a 20,000 ohm resistor across the capacitor terminals.

5. Disconnect two wire housings in the control box.

6. Pull the control box forward completely.

7. Re-install the components by referring to the removal procedure. (See Fig. 3) (Refer to the circuit diagram found on page 28~31 in this manual and on the control box.)

2. DISASSEMBLY INSTRUCTIONS

— Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord.

Figure 1

Figure 2

Figure 3

—11—

2.2 AIR HANDLING PARTS

2.2.1 COVER (AT THE TOP)

1. Remove the front grille. (Refer to section 2.1.1)

2. Remove the cabinet. (Refer to section 2.1.2)

3. Remove 11 screws which fasten the brace and covers.

4. Remove the covers and the brace. (See Fig. 4)

5. Re-install the components by referring to the removal procedure, above.

2.2.2 BLOWER

1. Remove the cover. (Refer to section 2.2.1)

2. Remove the 3 screws which fasten the evaporator at the left side and the top side. (See Fig. 4)

3. Move the evaporator sideward carefully.

4. Remove the 2 terminals carefully (See Fig. 5, Electric Heater Model only)

5. Remove the 3 screws which fasten the Heater Cover. (See Fig. 5, Electric Heater Model only)

6. Remove the Heater Cover. (See Fig. 5, Electric Heater Model only)

7. Remove the orifice from the air guide carefully. (See Fig. 6, Except Electric Heater Model)

8. Remove the clamp which secures the blower with plier. (See Fig. 6)

9. Remove the blower with plier or your hand without touching blades. (See Fig. 7)

10. Re-install the components by referring to the removal procedure, above.

Figure 4

Figure 5

Figure 6

Figure 7

—12—

2.2.3 FAN

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace and shroud cover.

(Refer to section 2.2.1)

3. Remove the side cover with 2 screws.

(See Fig. 8(b))

4. Remove the 5 or 6 screws which fasten the

condenser.

5. Move the condenser sideways carefully.

6. Remove the clamp which secures the fan.

7. Remove the fan. (See Fig. 8(a), 8(b))

8. Re-install the components by referring to the

removal procedure, above.

2.2.4 SHROUD

1. Remove the fan. (Refer to section 2.2.3)

2. Remove the 2 screws which fasten the shroud.

3. Remove the shroud. (See Fig. 9(a), 9(b))

4. Re-install the component by referring to the

removal procedure, above.

2.3 ELECTRICAL PARTS

2.3.1 MOTOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the cover control and disconnect a wire

housing in control box. (Refer to section 2.1.3)

3. Remove the blower. (Refer to section 2.2.2)

4. Remove the fan. (Refer to section 2.2.3)

5. Remove the 4 screws which fasten the motor.

(See Fig. 10(a), 10(b))

6. Remove the motor.

7. Re-install the components by referring to the

removal procedure, above.

2.3.2 COMPRESSOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Discharge the refrigerant system using Freon

Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the Freon

. Leave the valve in place after

servicing the system.

3. Disconnect the 3 leads from the compressor.

4. After purging the unit completely, unbraze the

suction and discharge tubes at the compressor connections.

5. Remove the 3 nuts and the 3 washers which

fasten the compressor. (See Fig. 11)

6. Remove the compressor.

7. Re-instill the components by referring to the

removal procedure, above.

Figure 8(a)

Figure 8(b)

Figure 9(a) Figure 9(b)

Figure 10(a) Figure 10(b)

Figure 11

—13—

2.3.3 CAPACITOR

1. Remove the control box. (Refer to section 2.1.3)

2. Remove the screw and knobs which fasten the

display panel.

3. Disconnect the 2 leads from the rocker switch and

remove the panel.

4. Remove a screw and unfold the control box.

(See Fig. 12)

5. Remove the screw and the clamp which fastens

the capacitor. (See Fig. 12)

6. Disconnect all the leads of capacitor terminals.

7. Re-install the components by referring to the

removal procedure, above.

2.3.4 POWER CORD

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Disconnect the grounding screw from the control

box.

4. Disconnect 2 receptacles.

5. Remove a screw which fastens the clip cord.

6. Pull the power cord. (See Fig. 13)

7. Re-install the component by referring to the

removal procedure, above. (Use only one ground-marked hole for ground connection.)

8. If the supply cord of this appliance is damaged, it

must be replaced by the special cord. (The special cord means the cord which has the same specification marked on the supply cord fitted to the unit.)

2.3.5 THERMOSTAT

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Remove the 2 screws which fasten the thermostat.

4. Disconnect all the leads of thermostat terminals.

5. Remove the thermostat. (See Fig. 14)

6. Re-install the components by referring to the

removal procedure, above.

Figure 13

Figure 12

Figure 14

2.3.6 ROTARY SWITCH

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Remove 2 screws which fasten the rotary switch.

4. Disconnect all the leads of the rotary switch

terminals.

5. Remove the rotary switch. (See Fig. 15)

6. Re-install the components by referring to the

above removal procedure, above.

2.3.7 SYNCHRONOUS MOTOR

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Remove the crankshaft.

4. Disconnect all the leads of the synchronous

motor.

5. Remove the 2 screws which fasten the

synchronous motor. (See Fig. 16)

6. Re-install the components by referring to the

removal procedure, above.

—14—

Figure 16

Figure 15

—15—

2.4 REFRIGERATION CYCLE

2.4.1 CONDENSER

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace and the shroud cover.

(Refer to section 2.2.1)

3. Remove 2 screws which fasten the side

cover.(See Fig. 17(b))

4. Remove the 5 or 6 screws which fasten the

condenser.

5. After discharging the refrigerant completely,

unbraze the interconnecting tube at the condenser connections.

6. Remove the condenser.

7. Re-install the components by referring to notes.

(See Fig. 17)

2.4.2 EVAPORATOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the top cover and the brace.

(Refer to section 2.2.1)

3. Discharge the refrigerant completely.

4. Remove the 3 screws which fasten the evaporator

at the left side and the top side.

5. Move the evaporator sideward carefully and then

unbraze the interconnecting tube at the evaporator connectors.

6. Remove the evaporator.

7. Re-install the components by referring to notes.

(See Fig. 18)

2.4.3 CAPILLARY TUBE

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace. (Refer to section 2.2.1)

3. After discharging the refrigerant completely,

unbraze the interconnecting tube at the capillary tube.

4. Remove the capillary tube.

5. Re-install the components by referring to notes.

Figure 17(a)

Figure 17(b)

Figure 18

Discharge the refrigerant system using Freon

Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the Freon

. Leave the valve in place

after servicing the system.

CAUTION

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