Sanyo SPW-X253 G56, GS56, SPW-X303 G56, GS56, SPW-X363 G56, GS56, SPW-X483 G56, GS56, SPW-C253 G5, G5/M, G8, G8/M, SPW-C303 G5, G5/M, SPW-C363 G5, G5/M, G8, G8/M, SPW-C483 G8, G8/M split-system air conditioner Service manual

SERVICE MANUAL

FILE NO.

SPW-X253G56, SPW-X253GS56 ⁄ SPW-C253G5 (/M), SPW-C253G8 (/M)

SPW-X303G56, SPW-X303GS56 ⁄ SPW-C303G5 (/M)

SPW-X363G56, SPW-X363GS56 ⁄ SPW-C363G5 (/M), SPW-C363G8 (/M)

SPW-X483G56, SPW-X483GS56 ⁄ SPW-C483G8 (/M)

SPLIT SYSTEM AIR CONDITIONER

INDOOR MODEL No.

SPW-X253G56

SPW-X253GS56

SPW-X303G56

SPW-X303GS56

SPW-X363G56

SPW-X363GS56

PRODUCT CODE No.

854 012 42

854 012 46

854 012 43

854 012 47

854 012 44

854 012 48

OUTDOOR MODEL No.

SPW-C253G5

SPW-C253G5/M

SPW-C253G8

SPW-C253G8/M

SPW-C303G5

SPW-C303G5/M

SPW-C363G5

SPW-C363G5/M

SPW-C363G8

SPW-C363G8/M

SPW-C483G8

PRODUCT CODE No.

854 012 22

854 012 65

854 012 23

854 012 68

854 012 24

854 012 69

854 012 25

854 012 66

854 012 26

854 012 70

854 012 27 SPW-X483G56 854 012 45

SPW-X483GS56 854 012 49 SPW-C483G8/M 854 012 67

NOTE) Models which does not have the alphabet “ /M” behind outdoor Model No. comply with the European regulations.

Indoor Unit Outdoor Unit

Section

1

2

3

SPW-X253G56

SPW-X253GS56

0406_X_S

0408_C_S

SPW-C253G5 SPW-C253G5/M



4

5

85464849142001

SPW-X303G56

SPW-X303GS56

SPW-X363G56

SPW-X363GS56

SPW-X483G56

SPW-X483GS56

0407_X_S

0409_C_S




REFERENCE NO.

SM

830042

Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

For safe installation and trouble-free operation,you must:

ⓦ

Carefully read this instruction booklet before beginning.

ⓦ

Follow each installation or repair step exactly as shown.

ⓦ

Observe all local, state, and national electrical codes.

ⓦ

Pay close attention to all warning and caution notices given in this manual.

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

CAUTION

This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage.

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

When Wiring

……………………………………………………………………

ELECTRICAL SHOCK CAN CAUSE

SEVERE PERSONAL INJURY OR DEATH.

ONLY A QUALIFIED, EXPERIENCED

ELECTRICIAN SHOULD ATTEMPT TO

WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked.

• Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or

death.

• Ground the unit following local electrical codes.

• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.

When Transporting

……………………………………………………………………

Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.

When Installing

……………………………………………………………………

…In a Room

Properly insulate any tubing run inside a room to prevent

“sweating” that can cause dripping and water damage to walls and floors.

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

…In an area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

…In a Snowy Area

(for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

……………………………………………………………………

• Execute enough ventilation in case refrigerant gas leaks during operations. Be careful not to contact the refrigerant gas with the flame. It will cause the generation of poisonous gas.

• Keep all tubing runs as short as possible.

• Use the flare method for connecting tubing.

• Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection.

• Check carefully for leaks before starting the test run.

NOTE

Depending on the system type, liquid and gas lines may be either narrow or wide. Therefore, to avoid confusion, the refrigerant tubing for your particular model is specified as either “narrow” or “wide” rather than as “liquid” or “gas”.

When Servicing

……………………………………………………………………

• Turn the power OFF at the main power box before opening the unit to check or repair electrical parts and wiring.

• Keep your fingers and clothing away from any moving parts.

• Clean up the site when finished servicing. Don’t forget to check that no metal scraps or bits of wiring have been left inside the unit.

SM830042

WHO SHOULD USE THIS MANUAL

This service manual is made to assist the service technician apply his knowledge and training to this model air conditioner. This manual is written both for experienced service

persons and those who are new to air conditioning service. To help those with less experience or who are new to this kind of unit we have included more explanations of basic procedures in simple language than is usual in some service manuals. The experi-

enced technician will of course find he knows many of these things already and can go directly to the procedures and information he needs; the less experienced technician will better understand what to do even before he arrives on the job, and therefore be better able to work by himself as well as assist the more experienced technician.

TABLE OF CONTENTS

1. SPECIFICATIONS ....................................................................................................... 7

1-1 Unit Specifications .............................................................................................. 8

1-2 Major Component Specifications ...................................................................... 14

(A) Indoor Unit .................................................................................................... 14

(B) Outdoor Unit ................................................................................................ 18

1-3 Other Component Specifications ...................................................................... 21

(A) Indoor Unit ..................................................................................................... 21

(B) Outdoor Unit .................................................................................................. 22

1-4 Dimensional Data ................................................................................................ 23

(A) Indoor Unit ..................................................................................................... 23

(B) Outdoor Unit .................................................................................................. 25

1-5 Refrigerant Flow Diagram ................................................................................... 27

1-6 Operating Range ................................................................................................. 28

2. PROCESSES AND FUNCTIONS ................................................................................29

2-1 Room Temperature Control ................................................................................30

2-2 Freeze Prevention ............................................................................................... 31

2-3 Drain Pump Control ............................................................................................ 31

2-4 Outdoor Fan Control ........................................................................................... 32

3. ELECTRICAL DATA .................................................................................................. 33

3-1 Indoor Unit .......................................................................................................... 34

3-2 Outdoor Unit ........................................................................................................ 42

SM830042

– 3 –

4. SERVICE PROCEDURES ........................................................................................... 55

4-1 Troubleshooting .................................................................................................. 56

4-2 A Sensor is Defective .......................................................................................... 67

4-3 Operation of Major Electrical Parts .....................................................................67

4-4 Checking the Electrical Components ..................................................................68

5. INSTRUCTION MANUAL ........................................................................................... 73

5-1 Wired Remote Controller / RCS-31G (W) .......................................................... 74

5-2 Wireless Remote Controller / RCS-5PS3E ........................................................ 87

– 4 –

SM830042

Introduction: Read Me First!

WHAT IS IN THIS MANUAL

This manual will help you understand and service the air conditioner. To help you find the information you need, we have divided it into 5 main sections. Each section is divided into chapters with charts, tables and explanations to help you find and repair problems.

❑

Section 1: Specifications, tells you about the physical and electrical make up of the unit, as

well as its heating and cooling capacities. Look in this section to find the correct values for components and functions.

❑

Section 2: Processes and Functions, explains each different part of the cooling and

heating cycle, and how each control function reacts to changing conditions to keep the room at the set temperature range.

❑

Section 3: Electrical Data, which has fold-out schematic and wiring diagrams so you can

find the parts you need to check when something is wrong, and see how they should be connected.

❑

Section 4: Service Procedures, has two main parts, a

diagnostic chapter to help you find the specific component to replace or adjust, and a chapter with specific procedures and values to guide you in checking the electrical components in the unit.

❑

Section 5: Instruction Manual, is the same manual the user will have, and it contains

general information about how to set and use the features of this particular air conditioner.

Knowing this information will help you tell the owner how to use and care for this air conditioner, and also help you install and set the unit correctly.

HOW TO USE THIS MANUAL

You can use this manual both as a reference to find specific information about the capacity, functions and construction of this unit, and as a source of information to help you set up and maintain the unit.

When this unit is not working properly, and the cause is not known, you can use the procedures in

Section 3: Servicing Procedures to find the problem, fix it, and restore the unit to its proper functioning.

This air conditioner has many helpful self diagnostic features to help you identify problem areas quickly.

So you will be ready when a problem happens, we suggest you look this manual over and become familiar with it by following these steps:

1.

Look at the TABLE OF CONTENTS to get an idea of what is in this manual and where to

find it.

2.

Look at the chapter about TROUBLE SHOOTING, so you are familiar with the way the flow

charts work. They are designed to guide you quickly through the possible causes for each kind of problem that is likely to happen to the Unit. Particularly read the introduction to this section, and the parts about the self-diagnosis and error codes which show on the display.

3.

Look at the chapter about CHECKING ELECTRICAL COMPONENTS. You already know

about most of these procedures. This chapter gives you the specific values and methods for these components. If you don’t know some of these procedures, you can easily learn them here.

4.

Read the Instruction Manual! The Instruction Manual is included here because it helps you

help the user to set the temperature controls properly and know how to take care of any simple problems that may happen, as well as know when to call for service. The Instruction

Manual also has illustrations, care, and installation information not found in the rest of the service manual. It is short, and if you read it carefully, you will be able to answer the customers questions easily, and also know the most efficient ways for setting times and temperatures.

Please use this manual to make your work easier, keep the air conditioner functioning well, and keep your customers satisfied.

SM830042

– 5 –

– 6 –

SM830042

1. SPECIFICATIONS

1-1 Unit Specifications ......................................................................................... 8

1-2 Major Component Specifications .................................................................. 14

(A) Indoor Unit ................................................................................................14

(B) Outdoor Unit ........................................................................................... 18

1-3 Other Component Specifications ................................................................. 21

(A) Indoor Unit ................................................................................................21

(B) Outdoor Unit ........................................................................................... 22

1-4 Dimensional Data ...........................................................................................23

(A) Indoor Unit ................................................................................................23

(B) Outdoor Unit .............................................................................................25

1-5 Refrigerant Flow Diagram ............................................................................. 27

1-6 Operating Range ............................................................................................ 28

1

– 7 –

SM830042

1. Specifications

1-1 Unit Specifications

1

MODEL No.

POWER SOURCE

PERFORMANCE

Capacity

Indoor Unit

Outdoor Unit

Air circulation (Hi/Me/Lo)

Moisture removal(High)

ELECTRICAL RATINGS

Voltage rating

Available voltage range

Running amperes*

Max. running amperes**

Power input

Power factor

C.O.P

Max. starting amperes

FEATURES

Controls

Timer

Fan speeds Indoor/Outdoor

Airflow direction (Indoor)

Air filter

Remote controller (Accessory)

Refrigerant control

Drain pump (drain connection)

Compressor

Operation sound Indoor - Hi/Me/Lo

Outdoor - Hi

REFRIGERANT TUBING

Limit of tubing length

Limit of tubing length at shipment

Limit of elevation difference

between the two units

Refrigerant tube

outer diameter

Narrow tube

Wide tube

Refrigerant amount at shipment

DIMENSIONS & WEIGHT

Unit dimensions Height

Width

Package dimensions

Depth

Height

Width

Depth

Net weight

Shipping weight

Shipping volume kW

BTU / h m3 / h

Liters/ h

V

V

A

A kW

%

W / W

A dB - A dB - A

SPW-X253G56 SPW-X253GS56

SPW-C253G5, SPW-C253G5/M

220 - 230 - 240 V / 1 Phase / 50 Hz

Cooling

7.3

25,000

1,140/1,020/840

3.6

220

14.5

20.2

3.01

94.4

2.43

69

230

198 - 264

14.6

19.6

3.07

91.4

2.38

72

240

14.7

19.4

3.16

89.6

2.31

75

Microprocessor

ON / OFF 12-hours ON/OFF 24-hours & Program

3 and Automatic control/ 2 (Auto)

Automatic (Remote control)

Washable, easy access

RCS-31G(W) RCS-5PS3E

Capillary tube

Max. head 25cm above drain connection (25A,OD32mm)

Rotary

37 / 35 / 31

53 m (ft.) m (ft.) m (ft.) mm (in) mm (in) kg mm (in) mm (in) mm (in) 860 (33-27/32) mm (in) 410 (16-5/32) mm (in) mm (in)

40 (131)

15 (49)

Outdoor unit is higher than indoor unit: 40 (131)

Outdoor unit is lower than indoor unit: 25 (82)

Indoor unit

328 (12-29/32)

860 (33-27/32)

988 (38-29/32)

988 (38-29/32) kg (lb) 30 (66)

6.35 (1 / 4)

15.88 (5 / 8)

R22 - 2.4

Outdoor unit

735 (28-30/32)

940 (37)

340 (13-12/32)

826 (32-17/32)

1,016 (40)

416 (16-12/32)

68 (150) kg (lb) 47 (104) m

3

(Cu. ft.) 0.4 (14.1)

74 (163)

0.349 (12.3)

DATA SUBJECT TO CHANGE WITHOUT NOTICE

Cooling :

Rating conditions(*) : Indoor air temperature 27

°

C DB / 19

°

C WB, Outdoor air temperature 35

°

C DB

Full load conditions(**) : Indoor air temperature 35

°

C DB / 25

°


°

C DB

SM830042

– 8 –



MODEL No.

POWER SOURCE

PERFORMANCE

Capacity

Indoor Unit

Outdoor Unit




Voltage rating


Running amperes*


Power input

Power factor

C.O.P


FEATURES

Controls

Timer



Air filter


Refrigerant control


Compressor


Outdoor - Hi






Refrigerant tube

outer diameter

Narrow tube

Wide tube




Width

Package dimensions

Depth

Height

Width

Depth

Net weight

Shipping weight

Shipping volume kW

BTU / h m3 / h

Liters/ h

V

V

A

A kW

%

W / W

A dB - A dB - A

SPW-X303G56 SPW-X303GS56

SPW-C303G5, SPW-C303G5/M

220 - 230 - 240 V / 1 Phase / 50 Hz

Cooling

8.8

30,000

1,380/1,200/1,020

4.2

220

16.9

22.7

3.36

90.4

2.62

100

230

198 - 264

17.7

22.8

3.46

85

2.54

105

240

18.6

22.9

3.6

80.6

2.44

109

Microprocessor






Capillary tube


Rotary

40 / 36 / 32


40 (131)

15 (49)



Indoor unit

358 (14-3/32)

1,150 (45-9/32)

1,278 (50-10/32)

988 (38-29/32) kg (lb) 38 (84)

6.35 (1 / 4)

15.88 (5 / 8)

R22 - 2.6

Outdoor unit

735 (28-30/32)

940 (37)

340 (13-12/32)

826 (32-17/32)

1,016 (40)

416 (16-12/32)

70 (154) kg (lb) 62 (137) m

3

(Cu. ft.) 0.556 (19.6)

76 (168)

0.349 (12.3)


Cooling :


°

C DB / 19

°


°

C DB


°

C DB / 25

°


°

C DB

1

SM830042

– 9 –



1

MODEL No.

POWER SOURCE

PERFORMANCE

Capacity

Indoor Unit

Outdoor Unit




Voltage rating


Running amperes*


Power input

Power factor

C.O.P


FEATURES

Controls

Timer



Air filter


Refrigerant control


Compressor


Outdoor - Hi






Refrigerant tube

outer diameter

Narrow tube

Wide tube




Width

Package dimensions

Depth

Height

Width

Depth

Net weight

Shipping weight

Shipping volume kW

BTU / h m3 / h

Liters/ h

V

V

A

A kW

%

W / W

A dB - A dB - A

SPW-X363G56 SPW-X363GS56

SPW-C363G5, SPW-C363G5/M

220 - 230 - 240 V / 1 Phase / 50 Hz

Cooling

10.6

36,000

1,920/1,680/1,320

4.7

220

16.3

20.5

3.17

88.4

3.34

102

230

198 - 264

17.1

20.8

3.28

83.4

3.23

107

240

18.6

21.5

3.45

77.3

3.07

111

Microprocessor






Capillary tube


Rotary

43 / 40 / 36


50 (164)

15 (49)



Indoor unit

358 (14-3/32)

1,150 (45-9/32)

1,278 (50-10/32)

988 (38-29/32) kg (lb) 38 (84)

9.52 (3 / 8)

19.05 (3 / 4)

R22 - 4.2

Outdoor unit

1,235 (48-20/32)

940 (37)

340 (13-12/32)

1,326 (52-7/32)

1,016 (40)

416 (16-12/32)

94 (207) kg (lb) 62 (137) m

3

(Cu. ft.) 0.556 (19.6)

101 (223)

0.56 (19.8)


Cooling :


°

C DB / 19

°


°

C DB


°

C DB / 25

°


°

C DB

SM830042

– 10 –



MODEL No.

POWER SOURCE

PERFORMANCE

Capacity

Indoor Unit

Outdoor Unit




Voltage rating


Running amperes*


Power input

Power factor

C.O.P


FEATURES

Controls

Timer



Air filter


Refrigerant control


Compressor


Outdoor - Hi






Refrigerant tube

outer diameter

Narrow tube

Wide tube




Width

Package dimensions

Depth

Height

Width

Depth

Net weight

Shipping weight

Shipping volume kW

BTU / h m3 / h

Liters/ h

V

V

A

A kW

%

W / W

A dB - A dB - A

SPW-X253G56 SPW-X253GS56

SPW-C253G8, SPW-C253G8/M

380 - 400 - 415 V / 3N / 50 Hz

Cooling

7.3

25,000

1,140/1,020/840

3.6

380

4.7

6

2.76

89.2

2.64

27

400

342- 456

4.7

5.8

2.8

86

2.61

29

415

4.6

5.7

2.81

85

2.6

30

Microprocessor






Capillary tube


Rotary

37 / 35 / 31


40 (131)

15 (49)



Indoor unit

328 (12-29/32)

860 (33-27/32)

988 (38-29/32)

988 (38-29/32) kg (lb) 30 (66)

6.35 (1 / 4)

15.88 (5 / 8)

R22 - 2.4

Outdoor unit

735 (28-30/32)

940 (37)

340 (13-12/32)

826 (32-17/32)

1,016 (40)

416 (16-12/32)

68 (150) kg (lb) 47 (104) m

3

(Cu. ft.) 0.4 (14.1)

74 (163)

0.349 (12.3)


Cooling :


°

C DB / 19

°


°

C DB


°

C DB / 25

°


°

C DB

1

SM830042

– 11 –



1

MODEL No.

POWER SOURCE

PERFORMANCE

Capacity

Indoor Unit

Outdoor Unit




Voltage rating


Running amperes*


Power input

Power factor

C.O.P


FEATURES

Controls

Timer



Air filter


Refrigerant control


Compressor


Outdoor - Hi






Refrigerant tube

outer diameter

Narrow tube

Wide tube




Width

Package dimensions

Depth

Height

Width

Depth

Net weight

Shipping weight

Shipping volume kW

BTU / h m3 / h

Liters/ h

A kW

%

W / W

A

V

V

A dB - A dB - A

SPW-X363G56 SPW-X363GS56

SPW-C363G8, SPW-C363G8/M

380 - 400 - 415 V / 3N / 50 Hz

Cooling

10.6

36,000

1,920/1,680/1,320

4.7

380

5.2

6.7

3.07

89.7

3.45

31

400

342 - 456

5.1

6.5

3.11

88

3.41

33

415

5.1

6.4

3.15

85.9

3.37

34

Microprocessor






Capillary tube


Rotary

43 / 40 / 36


50 (164)

15 (49)



Indoor unit

358 (14-3/32)

1,150 (45-9/32)

1,278 (50-10/32)

988 (38-29/32) kg (lb) 38 (84)

9.52 (3 / 8)

19.05 (3 / 4)

R22 - 4.0

Outdoor unit

1,235 (48-20/32)

940 (37)

340 (13-12/32)

1,326 (52-7/32)

1,016 (40)

416 (16-12/32)

94 (207) kg (lb) 62 (137) m

3

(Cu. ft.) 0.556 (19.6)

101 (223)

0.56 (19.8)


Cooling :


°

C DB / 19

°


°

C DB


°

C DB / 25

°


°

C DB

SM830042

– 12 –



MODEL No.

POWER SOURCE

PERFORMANCE

Capacity

Indoor Unit

Outdoor Unit




Voltage rating


Running amperes*


Power input

Power factor

C.O.P


FEATURES

Controls

Timer



Air filter


Refrigerant control


Compressor


Outdoor - Hi






Refrigerant tube

outer diameter

Narrow tube

Wide tube




Width

Package dimensions

Depth

Height

Width

Depth

Net weight

Shipping weight

Shipping volume kW

BTU / h m3 / h

Liters/ h

V

V

A

A kW

%

W / W

A dB - A dB - A

SPW-X483G56 SPW-X483GS56

SPW-C483G8, SPW-C483G8/M

380 - 400 - 415 V / 3N / 50 Hz

Cooling

14

47,800

1,920/1,680/1,320

7.4

380

8.4

10.3

4.7

85

2.98

71

400

342 - 456

8.5

9.9

4.76

80.8

2.94

73

415

8.9

9.5

4.86

76

2.88

75

Microprocessor






Capillary tube


Rotary

43 / 40 / 36


50 (164)

15 (49)



Indoor unit

358 (14-3/32)

1,150 (45-9/32)

1,278 (50-10/32)

988 (38-29/32) kg (lb) 38 (84)

9.52 (3 / 8)

19.05 (3 / 4)

R22 - 4.3

Outdoor unit

1,235 (48-20/32)

940 (37)

340 (13-12/32)

1,326 (52-7/32)

1,016 (40)

416 (16-12/32)

106 (234) kg (lb) 62 (137) m

3

(Cu. ft.) 0.556 (19.6)

113 (249)

0.56 (19.8)


Cooling :


°

C DB / 19

°


°

C DB


°

C DB / 25

°


°

C DB

1

SM830042

– 13 –


1

1-2 Major Component Specifications

(A) Indoor Unit

Unit Model No.

Source

Remote controller (Accessory)

Controller P.C.B. Ass’y

Fan (Number...diameter)

Fan Motor

Model…Nominal output

Source

No. of pole…rpm (230V, High)

Coil resistance

(Ambient temp. 20°C) mm

W rpm

Safety devices

Operating temp.

Open

Close

°C

°C

VAC, µF Run capacitor

Heat exchanger

Coil

Rows…fin pitch

Face area

Panel

Model No.

Dew proof heater

Auto louver motor

Auto louver motor...Rated

Coil resistance (at 25°C) mm m

2

V, W, rpm

SPW-X253G56

220 - 230 - 240 V / 1 phase / 50 Hz

RCS - 31G (W)

CR - X363GS

Turbo (1...ø 490)

SFG6X - 41A5P...40 W

220 - 230 - 240 V / 1 phase / 50 Hz

6…470

BRN – WHT : 114.0

, ORG – YEL : 66.4

WHT – VLT : 23.9

, WHT – PNK : 77.4

VLT – ORG : 12.4

, YEL – BLK : 82.1

130 ± 8 °C

79 ±15 °C

440 V, 4 µF

Aluminum plate fin / Copper tube

2…1.7

0.295

PNR - X253GA

240 V, 26 W

M2LB24ZA12

240 VAC, 3 W, 2.5 rpm

15,620 ± 15 %

– 14 –

SM830042



(A) Indoor Unit

Unit Model No.

Source


Controller P.C.B. Ass’y


Fan Motor


Source

No. of pole…rpm (230V, High)

Coil resistance

(Ambient temp. 20°C) mm

W rpm

Safety devices

Operating temperature Open

Close

°C

°C

VAC, µF Run capacitor

Heat exchanger

Coil

Rows…fin pitch

Face area

Panel

Model No.

Dew proof heater

Auto louver motor

Auto louver motor...Rated

Coil resistance (at 25°C) mm m

2

V, W, rpm

SPW - X303G56 SPW - X363G56 SPW - X483G56

220 - 230 - 240 V / 1 phase / 50 Hz

RCS - 31G (W)

CR - X363GS

Turbo (1...ø 490)

SFG6X - 61A3P...60 W

220 - 230 - 240 V / 1 phase / 50 Hz

6…530

BRN – WHT : 71.1

, ORG – YEL : 22.7

WHT – VLT : 8.7

, VLT – RNK : 43.2

VLT – ORG : 13.3

, YEL – BLK : 54.32

130 ± 8 °C

79 ± 15 °C

440 V, 6 µF


2…1.7

0.479

PNR - X483GA

240 V, 31 W

M2LB24ZA12

240 VAC, 3 W, 2.5 rpm

15,620 ± 15 %

1

– 15 –

SM830042


1


(A) Indoor Unit

MODEL No.

Source


Controller P. C. B Ass'y

Switch Ass'y

Fan (Number … diameter)

Fan motor

Model … Nominal output

Source

No. of pole … r.p.m. (230 V, High)

Coil resistance

(Ambient temperature 20 °C)

Safety device

Operating temperature

Run capacitor

Heat exchanger

Coil

Rows … fin pitch

Face area

Panel

Model No.

Indicator Lamp Ass'y

Dew proof heater

Auto louver motor

Auto louver motor … Rated

Coil resistance (at 25 °C)

Open °C

Close °C

VAC , µF mm m 2

V, W, rpm.

mm

W rpm

SPW - X253GS56

220 - 230 - 240 V / 1 phase / 50 Hz

RCS - 5PS3E

CR - X363GS

SW - X363GS

Turbo (1… ø 490)

SFG6X - 41A5P … 40 W

220 - 230 - 240 V / 1 phase / 50 Hz

6 … 470

BRW - WHT : 114.0

, ORG - YEL : 66.4

WHT - VLT : 23.9

, WHT - PNK : 77.4

VLT - ORG : 12.4

, YEL - BLK : 82.1

130 ± 8 °C

79 ± 15 °C

440 V , 4 µF


2 … 1.7

0.295

PNR - X253GS

IND - TS2422

240 V , 26 W

M2LB24ZA12

240 VAC , 3W , 2.5 rpm

15,620 ± 15 %

– 16 –

SM830042



(A) Indoor Unit

MODEL No.

Source


Controller P. C. B Ass'y

Switch ass'y

Fan (Number … diameter)

Fan motor


Source

No. of pole … r.p.m. (230 V, High)

Coil resistance

(Ambient temperature 20 °C)

Safety device


Run capacitor

Heat exchanger

Coil

Rows … fin pitch

Face area

Panel

Model No.

Indicator Lamp ass'y

Dew proof heater

Auto louver motor

Auto louver motor … Rated

Coil resistance (at 25 °C)

Open mm

SPW - X303GS56 SPW - X363GS56 SPW - X483GS56

220 - 230 - 240 V / 1 phase / 50 Hz

RCS - 5PS3E

CR - X363GS

SW - X363GS

Turbo (1… ø 490)

W rpm

°C

Close °C

VAC , µF

SFG6X - 61A3P … 60 W

220 - 230 - 240 V / 1 phase / 50 Hz

6 … 530

BRW - WHT : 71.1

, ORG - YEL : 22.7

WHT - VLT : 8.7

, VLT - PNK : 43.2

VLT - ORG : 13.3

, YEL - BLK : 54.32

130 ± 8 °C

79 ± 15 °C

440 V , 6 µF mm m

V, W, rpm

2


2 … 1.7

0.479

PNR - X483GS

IND - TS2422

240 V , 31 W

M2LB24ZA12

240 VAC , 3W , 2.5 rpm

15,620 ± 15 %

1

– 17 –

SM830042


1


(B) Outdoor Unit

Model No.

Source

Compressor

Model ... Code No.

Nominal output

Compressor oil

Coil resistance (at 25°C)

Refrigerant amount at shipment

Safety device


Run capacitor

High pressure switch

Set pressure

Fan (Number…diameter (mm))

Fan motor


Open

Close

OFF

W cc kg

°C

°C

V, µF kg/cm

ON kg/cm

2

2

SPW-C253G5

SPW-C253G5/M

SPW-C303G5

SPW-C303G5/M

SPW-C363G5

SPW-C363G5/M

220 - 230 - 240 V / 1 phase / 50 Hz

Rotary (Hermetic)

C - R221H5V

2,200

C - R240H5W

2,400

1,350

C - R : 0.76, C - S : 2.76 C - R : 0.69, R - S : 3.34 , S - C : 2.66

R22 - 2.4

Internal / OL - D24

160 ± 5 / 150 ± 10

87 ± 9 / 63 ± 10

R22 - 2.6

Internal type

175 ± 5

105 ± 9

R22 - 4.2

400V, 40

ACB - 1TB07

30

+ 2.0

+ 0.5

24 ± 2.0

Propeller (1…ø 460) Propeller (2…ø 460)

W

No. of pole ... rpm (230V, High)

Coil resistance

(Ambient temperature 20°C)

Safety device


Run capacitor

Heat exchanger

Coil

Rows ... fin pitch

Face area rpm

Open

Close

°C

°C

VAC, µF mm m 2

KFC6S - 91C5P…100 W

6...868

BRW – WHT : 61.0

YEL – PNK : 17.7

WHT – YEL : 64.3

KFC6S - 91C5PX2

100WX2

6…871

Internal type

130 ± 8

79 ± 15

440 V, 5 µF

Internal type

130 ± 8

79 ± 15

440 V, 5 µF / 5 µF

Aluminium plate fin / Copper tube

2...2.0

0.616

2...2.0

1.08

– 18 –

SM830042




MODEL No.

Source

Compressor

Model … Code No.

Nominal output

Compressor oil



Safety device

Overload relay models


Operating ampere (at 25°C)

Run capacitor


Set pressure

Fan Number … diameter

Fan motor


No. of pole … rpm (230 V, High)

Coil resistance


Safety device


Run capacitor

Heat exchanger

Coil

Rows … fin pitch

Face area

Open

Close

°C

°C

VAC, µF mm m 2

Open

Close

°C

°C

A

V, µF

OFF kg/cm

2

ON kg/cm

2 mm

W rpm

W

CC kg

SPW-C253G8, SPW-C253G8/M

380 - 400 - 415 V / 3 phase / 50 Hz

Rotary (Hermetic)

C - R224H8S

2,200

1,350

R - S : 5.54 , S - T : 5.54 , T - R : 5.54

R22 - 2.4

Internal type

—

120 ± 5

98 ± 11

—

—

ACB - 1TB07

30

+ 2.0

+ 0.5

24 ± 2.0

Propeller (1 … ø 460)

External type

FMSA - 1SZ607A

—

—

6A, 110 %

KFC6S - 91C5P … 100 W

6 … 868

BRW – WHT : 61.0

, YEL – PNK : 17.7

WHT – YEL : 64.3

130 ± 8

79 ± 15

440V, 5 µF


2 … 2.0

0.616

1

– 19 –

SM830042


1



MODEL No.

Source

Compressor

Model...Code No.

Nominal output

Compressor oil

Coil resistance

(Ambient temperature 25°C )

Refrigerant amount at shipment

Safety devices

Overload relay models


Operating ampere (at 25°C)

Run capacitor


Set pressure


Fan motor

Model...Nominal output

No. of pole...rpm (230 V, High)

Coil resistance



Run capacitor

Heat exchanger

Coil

Rows...fin pitch

Face area

Open

Close

W cc kg

°C

°C

A

V, µF

OFF kg/cm 2

ON kg/cm 2 mm

SPW-C363G8

SPW-C363G8/M

SPW-C483G8

SPW-C483G8/M

380 - 400 - 415 V / 3 phase / 50 Hz

Rotary (Hermetic) Scroll (Hermetic)

C - R243H8T

2,400

ZR61KC - TFD - 522

3,750

1,350 2,130

T – R : 5.54 , R – S : 5.54

T1 – T2 : 2.72 , T2 – T3 : 2.72

S – T : 5.54

T3 – T1 : 2.72

R 22 - 4.0

Internal type External type

—

120 ± 5

FMSA -1SZ607A

—

98 ± 11

—

R 22 - 4.3

Internal type

—

130

—

6A, 110 %

61

—

—

ACB - 1TB07

30

+ 2.0

+ 0.5

24 ± 2.0

Propeller (2...ø460)

External type

FMSA -1SZ607A

—

—

10A, 110 %

W rpm

Open

Close

°C

°C

VAC, µF

KFC6S - 91C5PX2...100WX2

6...871

BRN – WHT : 61.0

WHT – YEL : 64.3

YEL – PNK : 17.7

130 ± 8

79 ± 15

440V, 5 µF / 440 V, 5 µF mm

m

2

2


2...2.0

1.08

– 20 –

SM830042


1-3 Other Component Specifications

(A) Indoor Unit

Power Transformer

Rated Primary

Secondary

Capacity

Coil resistance

Thermistor cut off temperature

Thermistor (Coil sensor)

Coil resistance

°C k

Drain pump

Rated

Float switch

Rated (Contact rated)

Synchronized Motor

SPW-X253G56 SPW-X303G56 SPW-X363G56

ATR – I75A

AC 230 V, 50 Hz

10.6 V, 0.93 A

9.85 VAC

WHT - WHT : 96.5

, BRN - BRN : 0.8 (at 20 °C)

150

PBC - 41E - S26

–10 °C : 23.7

–5 °C : 18.8

0 °C : 15.0

,

,

,

PBC - 41E - S36

WP20SL - 21

AC 230 V, 14.7 W

SPW-X483G56

5 °C : 12.1

10 °C : 9.7

15 °C : 8.0

FS - 0218 - 103

AC 230 V, 50 W

M2LB24ZA12

1

Power Transformer

Rated Primary

Secondary

Capacity

Coil resistance

Thermistor cut off temperature

Thermistor (Coil sensor)

Coil resistance k

°C

Thermistor (Room or coil sensor)

Coil resistance

Drain pump

Rated

Float switch

Rated (Contact rated)

Switch Ass'y

Indicator Lamp Ass'y

Synchronized Motor k

SPW-X253GS56 SPW-X303GS56 SPW-X363GS56

ATR – I75A

AC 230 V, 50 Hz

10.6 V, 0.93 A

SPW-X483GS56

9.85 VAC

WHT - WHT : 96.5

, BRN - BRN : 0.8 (at 20 °C)

150

PBC - 41E - S26

–10 °C : 23.7

–5 °C : 18.8

0 °C : 15.0

0 °C : 16.5

5 °C : 12.8

10 °C : 10.0

20 °C :

30 °C :

6.3

4.0

,

,

,

PBC - 41E - S36

5 °C : 12.1

10 °C : 9.7

15 °C : 8.0

KTEC - 35 - S6

,

,

,

,

,

WP20SL - 21

AC 230 V, 14.7 W

40 °C : 2.7

45 °C : 2.2

50 °C : 1.8

55 °C : 1.5

FS - 0218 - 103

AC 230 V, 50 W

SW - X363GS

IND - X253GS IND - X483GS

M2LB24ZA12

SM830042

– 21 –


1-3 Other Component Specifications


1

MODEL No.

Compressor Motor Mgnetic Contactor

Coil rated


Contact rated

Auxiliary relay

V, A

Coil rated


Contact rated

Thermostat (Coil sensor)

Operating Temperature k

V, A

°C

Contact rated A

SPW-C253G5

SPW-C253G5/M

SPW-C303G5

SPW-C303G5/M

FMCA - 1SZ607

AC 220 - 240 V, 50 Hz

828 ± 15 %

AC 440 V, 13 A

HH62S / 085

AC 240 V, 50 Hz

17.2

AC 220 V, 5 A

YTB - S377

27.5 ± 1.5

OFF (High)

25.5

+ 1.5

– 0.5

ON (Low)

AC 250 V, 1 A

SPW-C363G5

SPW-C363G5/M

MODEL No.

Compressor Motor Magnetic Contactor

Coil rated


Contact rated V, A

Thermal Relay

Contact rated

Rated ampere (90 / 120%)

Auxiliary relay

Coil rated

Coil resistance

Contact rated

V, A

A

A kW

A

Relay

Rated voltage

Resistance (at 20°C)

Thermostat (Coil sensor)

Operating Temperature k

V

°C

Contact rated

SPW-C253G8

SPW-C253G8/M

6 A, 110 %

SPW-C363G8

SPW-C363G8/M

FMSA - 1SZ607A

AC 220 - 240 V, 50 Hz

828 (at 20 °C)

AC 440 V, 13 A

SPW-C483G8

SPW-C483G8/M

AC 220 V, 2.25 A

6 A, 110 %

HH62S / 085

AC 240 V, 50 Hz

15.5 ± 20 %

AC 250 V, 10A

RDR - S400

AC 380 - 415 V, 3 phase, 50 Hz

R - T : 76.3

YTB - S377

27.5 ± 1.5

OFF (High)

25.5

+ 1.5

– 0.5

ON (Low)

AC 250 V, 1 A

10 A, 110 %

SM830042

– 22 –

1-4 Dimensional Data

(A) Indoor Unit : SPW-X253G56, SPW-X253GS56

207

205

61


61

820 (Ceiling opening)

590 (Suspention bolt pitch)

342 15

50 150

255

298

205

125

30

860

500

1

48

207

Fig. 1

– 23 –

9

Air intake grille

Air outlet

Refrigerant liquid line (ø 6.35)

Refrigerant gas line (ø 15.88)

Drain connection

Power supply entry

For discharge duct

Humidifier (option) mounting hole

Suspention bolt mounting

0410_X_S

SM830042

1



(A) Indoor Unit : SPW-X363G56, SPW-X483G56, SPW-X303G56

SPW-X363GS56, SPW-X483GS56, SPW-X303GS56

218

210

60

61

820 (Ceiling opening)

590 (Suspention bolt pitch)

342 15

70 165

285

328

218

125

30 860

500

48

210

Fig. 2

9

Air intake grille

Air outlet

Refrigerant liquid line (ø9.52)

(SPW-X303G56, SPW-X303GS56 ø6.35)

Refrigerant gas line (ø19.05)

(SPW-X303G56, SPW-X303GS56 ø15.88)

Drain connection

Power supply entry

For discharge duct

Humidifier (option) mounting hole

Suspension bolt mounting

0603_X_S

SM830042

– 24 –


(B) Outdoor Unit : SPW-C253G5, SPW-C253G5/M

SPW-C253G8, SPW-C253G8/M

SPW-C303G5, SPW-C303G5/M

170 660 110


1

940

Fig. 3

Dimension : mm

Hole for anchor bolt (4-ø13)

Refrigerant tube joint (narrow tube)

Flare connection 1/4 in (6.35 mm)

Refrigerant tube joint (wide tube)


Refrigerant tubing inlet

Power supply inlet

0411_C_S

SM830042

– 25 –

1


(B) Outdoor Unit : SPW-C363G5, SPW-C363G5/M

SPW-C363G8, SPW-C363G8/M

SPW-C483G8, SPW-C483G8/M

170 660 110


940

Fig. 4

Dimension : mm

Hole for anchor bolt (4-ø13)

Refrigerant tube joint (narrow tube)


Refrigerant tube joint (wide tube)


Refrigerant tubing inlet

Power supply inlet

0412_C_S

SM830042

– 26 –


1-5 Refrigerant Flow Diagram

Indoor Unit : SPW-X253GS56 Outdoor Unit : SPW-C253G5, SPW-C253G5/M

SPW-X303GS56 SPW-C303G5, SPW-C303G5/M

SPW-X253G56

SPW-X303G56

SPW-C253G8, SPW-C253G8/M

O. D.

15.88 mm

(5/8")

Wide tube service valve

Strainer Capillary

Accumulator

1

High pressure switch

HP

Narrow tube service valve

Strainer

O. D.

6.35 mm

(1/4")

Sub-condenser

0664_T_S


SPW-X363G56 SPW-C363G8, SPW-C363G8/M


O. D.

19.05 mm

(3/4")

Strainer Capillary

Accumulator

Strainer

O. D.

9.52 mm

(3/8")

Fig. 5-1


Sub-condenser

0605_X_S

SM830042

– 27 –


1-5 Refrigerant Flow Diagram


SPW-X483G56


O. D.

19.05 mm

(3/4")

Accumulator

1

Strainer

O. D.

9.52 mm

(3/8")


Sub-condenser

0606_X_S

Fig. 5-2

1-6 Operating Range

Cooling

Temperature

Maximum

Minimum

Indoor air intake temp.

35°C DB / 22.5°C WB

19°C DB / 14°C WB

Outdoor air intake temp.

52°C DB

19°C DB

– 28 –

SM830042

2. Processes and functions

2. PROCESSES AND FUNCTIONS

2-1 Room Temperature Control .......................................................................... 30

2-2 Freeze Prevention ..........................................................................................31

2-3 Drain Pump Control .......................................................................................31

2-4 Outdoor Fan Control ......................................................................................32

2

– 29 –

SM830042


2

2-1 Room Temperature Control

The Unit adjusts room temperature by turning the outdoor unit’s compressor ON and OFF.

This process is controlled by the thermostat located in the remote control unit.

The figures on this and the next pages show how each part of the system performs when the room temperature changes and the thermostat activates the compressor to start

(thermo ON) or stop (thermo OFF). Fig. 6 shows about the cooling cycle.

WITHIN 3 MINUTE

ROOM TEMPERATURE

MORE THAN 3 MINUTES

S. T.+0.5

°

C

SET TEMP. T

(S.T.)

°

C

COMPRESSOR

ON

THERMO ON

THERMO OFF

3 MINUTES

MORE THAN

5 MINUTES

OFF

ON

SET SPEED (MANUAL)

INDOOR FAN

THERMO OFF

OFF

THERMO ON

ON

OUTDOOR FAN

ON OFF ON OFF

Fig. 6

ON

0607_X_S

Chart Summary and Explanations

❑

Once the compressor starts, it keeps running for 5 minutes.

❑

Once the compressor stops, it will not start running again for 3 minutes.

❑

If you change the operation mode during the cooling cycle, the control circuit stops the compressor for 3 minutes.

❑

For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off, the compressor is not controlled by the room sensor.

❑

Thermo ON: When room temperature rises 0.5

°

C above the set temperature T˚,

(T˚+0.5

°

C):

Compressor

➞

ON

❑

Thermo OFF: When the room temperature is equal to or below the set temperature T˚:

Compressor

➞

OFF

❑

In case of wireless remote control model (GS type).

• The remote control unit sends the temperature signal to the air conditioner regularly at 3 minute intervals. If the signal from the remote control unit stops for more than 10 minutes due to the damage of the remote control unit or other trouble, the air conditioner will switch to the temperature sensor which is built in the indoor unit and control the room temperature. In these cases, the temperature around the remote contorl unit may differ from the temperature detected at the air conditioner’s position.

• If the remote control is located near a heat source, such as a space heater or in direct sunlight, press the A/C SENSOR button to switch to the sensor in the indoor unit.

– 30 –

SM830042


2-2 Freeze Prevention

Freeze Prevention keeps the indoor heat exchange coil from freezing. Freezing reduces the efficiency of the unit, and frost buildup on the coil blocks cool air circulation from the indoor unit’s fan.

MORE THAN 10 MINUTES

FREEZE

PREVENTION

6 MINUTES 10 MINUTES

FREEZE

PREVENTION

6 MINUTES

INDOOR COIL

TEMPERATURE

(THERMO ON)

–1

°

C

(THERMO OFF)

ON OFF ON OFF ON

COMPRESSOR

ON OFF

ON

OFF

ON

OUTDOOR FAN

SET SPEED

INDOOR FAN

0608_X_S

Fig. 7

2-3 Drain Pump Control

Drain pump operates when compressor starts to operate or when Float Switch turns off.

2

FLOAT SWITCH

ON: low water level

OFF: high water level

COMPRESSOR

DRAIN PUMP

OUTDOOR FAN

ON

ON

ON

ON

OFF

ON

OFF

OFF

ON

INDOOR FAN SET SPEED

OFF

20 MINUTES

OFF

ON

OFF

ON

ON

ON

0609_X_S

Fig. 8

– 31 –

SM830042

2


2-4 Outdoor Fan Control

• In low outdoor temperature, the outdoor fan is set automatically from HIGH to LOW to prevent the indoor heat exchanger from freezing.

• When the outdoor temperature falls below 25.5

°

C, the outdoor fan is set from HIGH to

LOW automatically. When the outdoor temperature rises to 27.5

°

C, the outdoor fan is set from LOW to HIGH automatically.

– 32 –

SM830042

3. Electrical data

3. ELECTRICAL DATA

3-1 Indoor Unit (Electric Wiring Diagram, Schematic Diagram) ............................... 34

3-2 Outdoor Unit (Electric Wiring Diagram, Schematic Diagram) ............................. 42

3

– 33 –

SM830042


3

3-1 Indoor Unit

1

SPW-X253G56, SPW-X363G56, SPW-X483G56

• Electric Wiring Diagram

Remote

Control

Switch

DPH

LM

S

P

1 2 3 4

1 2 3 4 Connector

4P(WHT)

1 2

TH1

2P(RED)

E

1

1

5

5

5P(WHT)

1

1

12

12

12P(WHT)

5P(WHT)

1

SUP

3 5

Controller (CR-X363GS)

2P(WHT)

PRY

1 2

2P(WHT)

SEC

1 2

3P(BLU)

DP

1 3

3P(RED)

1

FS

3

1 3

DPH

3P(RED)

1 3

LM

3P(GRN)

FM

COM

1

7P(WHT)

M H L

3 5 7

3P(WHT)

49FMI

1 3

1 2 3 4

Terminal Plate(4P)

To Outdoor Unit

Power Supply

Earth

Terminal

C

P

S

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9

DP

P S

TR

FS

FMI

Earth

Terminal

GRN/YEL

Earth

Terminal

W

854-2-5268-493-00-2 (X253G56, X363G56, X483G56)

– 34 –

SM830042


3-1 Indoor Unit

1

SPW-X253G56, SPW-X363G56, SPW-X483G56

4P-1

3

F

• Schematic Diagram

RY1

2 2

1

TR

1

RY4 RY4 RY3 RY5

CR-X363GS

Controller

4P-4

5

1

12

1

5

RCS

TH2

1 1

RY2

1

H

5

M

3

L

7

RY2

DPH

2

3

1 3

LM DP

4

3 3

6 5 4

FMI

2 1

C

8

9

1

3

49FMI

1

RY1

RY2

RY3

RY4

RY5

1

3

1

2

TH1

Coil

FS

4P-2

1

Symbols

FMI

49FMI

C

F

DP

DPH

LM

TR

RY1-RY5

FS

TH1

TH2

Description Symbols Description

Indoor Fan Motor

Indoor Motor Thermal Protector

Capacitor

Fuse

Drain Pump

Dew Proof Heater

Auto Louver Motor

Power Transformer

Auxiliary Relay

Float Switch

Thermistor (Indoor Coil)

Room Thermistor

CR-X363GS Indoor Controller

RCS Remote Control Switch

Terminal Plate

Connector

Terminal

S

854-2-5268-493-00-2 (X253G56, X363G56, X483G56)

3

SM830042

– 35 –


3

3-1 Indoor Unit

2

SPW-X303G56


Remote

Control

Switch

DPH

LM

S

P

1 2 3 4

1 2 3 4

Connector

4P(WHT)

1 2

TH1

2P(RED)

E

1

1

5

5

5P(WHT)

1

1

12

12

12P(WHT)

5P(WHT)

1

SUP

3 5


2P(WHT)

PRY

1 2

2P(WHT)

SEC

1 2

3P(BLU)

DP

1 3

3P(RED)

1

FS

3

1 3

DPH

3P(RED)

1 3

LM

3P(GRN)

FM

COM

1

7P(WHT)

M H L

3 5 7

3P(WHT)

49FMI

1 3

1 2 3 4

Terminal Plate(4P)

To Outdoor Unit

Power Supply

Earth

Terminal

C

P

TR

S

Earth

Terminal

DP

P

S

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9

FS

FMI

GRN/YEL

Earth

Terminal

W

854-2-5268-494-00-2 (X303G56)

– 36 –

SM830042


3-1 Indoor Unit

2

SPW-X303G56

4P-1

3

F


RY1

2 2

1

TR

1

RY4 RY4 RY3 RY5

CR-X363GS

Controller

4P-4

5

1

12

1

5

RCS

TH2

1 1

RY2

1

H

5

M

3

L

7

RY2

DPH

1

2

3

LM DP

4

5 4 3

FMI

2 1

C

8 1

9 3

49FMI

3 3 3 1

RY1

RY2

RY3

RY4

RY5

1

3

1

2

TH1

Coil

FS

4P-2

1

Symbols

C

F

FMI

49FMI

DP

DPH

LM

TR

RY1-RY5

FS

TH1

TH2

Description

Indoor Fan Motor


Capacitor

Fuse

Drain Pump

Dew Proof Heater

Auto Louver Motor

Power Transformer

Auxiliary Relay

Float Switch


Room Thermistor

Symbols Description


RCS Remote Control Switch

Terminal Plate

Connector

Terminal

S

854-2-5268-494-00-2 (X303G56)

3

SM830042

– 37 –


3

3-1 Indoor Unit

3



IND Lamp

Assy

1 7

DPH

LM

Switch

Assy

1 2 3

S

P

1 2 3 4

1 2 3 4

Connector

4P(WHT)

E

1 2

TH1

2P(RED)

1 2

TH2

2P(YEL)

1 2 3

3P(WHT)

1 7

7P(WHT)

5P(WHT)

SUP

1 3 5


2P(WHT)

PRY

1 2

2P(WHT)

SEC

1 2

3P(BLU)

DP

1 3

3P(RED)

FS

1 3

1 3

DPH

3P(RED)

1 3

LM

3P(GRN)

FM

COM

7P(WHT)

M H L

1 3 5 7

3P(WHT)

49FMI

1 3

C

1 2 3 4

Terminal Plate(4P)

To Outdoor Unit

Power Supply

Earth

Terminal

P

S

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9

DP

P S

TR

FS

FMI

Earth

Terminal

GRN/YEL

Earth

Terminal

W

854-2-5268-495-00-2 (X253GS56, X363GS56, X483GS56)

– 38 –

SM830042


3-1 Indoor Unit

3


4P-1

3

F


RY1

2 2

1

TR

1

RY4 RY4 RY3 RY5

CR-X363GS

Controller

4P-4

5

1

7

1

7

IND

1

2

3

1

2

3

SW

1 1

RY2

1

H

5

M

3

L

7

RY2

DPH

2

1 3

LM DP

4

6 5 4

FMI

2 1

C

8 1

9 3

49FMI

3 3 3 1

RY1

RY2

RY3

RY4

RY5

1

3

1

2

TH1

Coil

1

2

TH2

Room

FS

4P-2

1

Symbols

C

F

FMI

49FMI

DP

DPH

LM

TR

RY1-RY5

FS

TH1

TH2

Description Symbols Description

Indoor Fan Motor


Capacitor

Fuse

Drain Pump

Dew Proof Heater

Auto Louver Motor

Power Transformer

Auxiliary Relay

Float Switch


IND

SW

Indicator Lamp Assy

Switch Assy

Terminal Plate

Connector

Terminal


Room Thermistor

S

854-2-5268-495-00-2 (X253GS56, X363GS56, X483GS56)

3

SM830042

– 39 –


3

3-1 Indoor Unit

4

SPW-X303GS56


IND Lamp

Assy

1 7

DPH

LM

Switch

Assy

1 2 3

S

P

1 2 3 4

1 2 3 4

Connector

4P(WHT)

E

1 2

TH1

2P(RED)

1 2

TH2

2P(YEL)

1 2 3

3P(WHT)

1 7

7P(WHT)

5P(WHT)

SUP

1 3 5


2P(WHT)

PRY

1 2

2P(WHT)

SEC

1 2

3P(BLU)

DP

1 3

3P(RED)

FS

1 3

1 3

DPH

3P(RED)

1 3

LM

3P(GRN)

FM

COM

7P(WHT)

M H L

1 3 5 7

3P(WHT)

49FMI

1 3

1 2 3 4

Terminal Plate(4P)

To Outdoor Unit

Power Supply

Earth

Terminal

C

P

TR

S

Earth

Terminal

DP

P

S

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9

FS

FMI

GRN/YEL

Earth

Terminal

W

854-2-5268-496-00-2 (X303GS56)

– 40 –

SM830042


3-1 Indoor Unit

4

SPW-X303GS56

4P-1

3

F


RY1

2 2

1

TR

1

RY4 RY4 RY3 RY5

CR-X363GS

Controller

4P-4

5

1

7

1

7

IND

1

2

3

1

2

3

SW

1 1

RY2

1

H

5

M

3

L

7

RY2

DPH

2

1 3

LM DP

4

5 4 3

FMI

2 1

C

8

9

1

3

49FMI

3 3 3 1

RY1

RY2

RY3

RY4

RY5

1

3

1

2

TH1

Coil

1

2

TH2

Room

FS

4P-2

1

Symbols

C

F

FMI

49FMI

DP

DPH

LM

TR

RY1-RY5

FS

TH1

TH2

Description

Indoor Fan Motor


Capacitor

Fuse

Drain Pump

Dew Proof Heater

Auto Louver Motor

Power Transformer

Auxiliary Relay

Float Switch


Room Thermistor

Symbols Description


IND

SW

Indicator Lamp Assy

Switch Assy

Terminal Plate

Connector

Terminal

S

854-2-5268-496-00-2 (X303GS56)

3

SM830042

– 41 –

3


3-2 Outdoor Unit

1

SPW-C253G5

SPW-C253G5/M


Terminal

Plate

1

2

WHT

RED

4

L

N

WHT

RED

1Y

7

8

5 6

3 1 4 2

WHT

PNK

P S

1

2

1

2

WHT

PNK

Connector 2P (WHT) 63PH

A

52C

B

R S T 13 31

U V W 14 32

23S C

H L

Earth

Terminal

OLR

C2

C

R

S

CM

C1

5

5

4

4

3

3

2

2

1

1

P

S

FM

W

854-2-5268-461-00-1 (C253G5)

SM830042

– 42 –



1

SPW-C253G5

SPW-C253G5/M


L

N

52C

S

V

R

U

C2

CM

OLR

23S

H

5

C

L

4

FM

3 2 1

C1

52C

W

T

1Y

1

2

1Y 52C

4

1

2

63PH

3

Symbols

CM

FM

52C

63PH

23S

C1, 2

OLR

1Y

Description

Compressor motor

Fan Motor

Compressor Motor Magnetic Contactor

High Pressure Switch

Fan Speedcontrol Thermostat

Capacitor

Overload relay

Auxiliary Relay

Connector

Terminal Plate

S

854-2-5268-461-00-1 (C253G5)

SM830042

– 43 –

3



2

SPW-C303G5

SPW-C303G5/M


Terminal

Plate

1

2

WHT

RED

4

L

N

WHT

RED

1Y

7

8

5 6

3 1 4 2

WHT

PNK

P S

1

2

1

2

WHT

PNK


A

52C

B

R S T 13 31

U V W 14 32

23S C

H L

Earth

Terminal

C

R

S

CM

C2

TH

C1

5

5

4

4

3

3

2

2

1

1

P

S

FM

W

854-2-5268-462-00-1 (C303G5)

SM830042

– 44 –



2

SPW-C303G5

SPW-C303G5/M


L

N

52C

S

V

R

U

TH

C2

CM

23S

H

5

C

L

4

FM

3 2 1

C1

52C

W

T

1Y

1

2

1Y 52C

4

1

2

63PH

3

Symbols

CM

FM

52C

63PH

23S

C1, 2

TH

1Y

Description

Compressor motor

Fan Motor




Capacitor

Thermistor

Auxiliary Relay

Connector

Terminal Plate

S

854-2-5268-462-00-1 (C303G5)

SM830042

– 45 –

3



3

SPW-C363G5

SPW-C363G5/M


Terminal

Plate

1

2

WHT

RED

4

L

N

WHT

RED

2Y

7

8

5 6

3 1 4 2

WHT

PNK

P S

1

2

1

2

WHT

PNK


A

52C

B

R S T 13 31

U V W 14 32

Earth

Terminal

C

R

S

CM

GRY

GRY

C3

TH

RED

C

23S

L

H

1Y

7

WHT

VLT

WHT

5

8

3 1 4

6

2

C1

5

5

4

4

3

3

2

2

1

1

P

S

C2

5

5

4

4

3

3

2

2

1

1

P

S

FM1 FM2

W

854-2-5268-463-00-2 (C363G5)

SM830042

– 46 –



3

SPW-C363G5

SPW-C363G5/M


L

N

52C

13

14

2Y

1

2

TH

52C

S

V

R

U

C3

23S

H

C

L

1

5

3

4 5

FM1

3 2 1

2

4

6

4

5

FM2

3 2 1

CM

C1 C2

1Y

52C

W

T

2

63PH

2Y 52C

4

1

3

Symbols

CM

FM1, 2

52C

63PH

23S

C1, 2, 3

TH

1Y, 2Y

Description

Compressor motor

Fan Motor




Capacitor

Thermistor

Auxiliary Relay

Connector

Terminal Plate

S

854-2-5268-463-00-2 (C363G5)

SM830042

– 47 –

3



4

SPW-C253G8

SPW-C253G8/M


PNK

BRN

S

C

R

47C

T B A

Terminal

Plate

1

2

L1

4

5

L2

L3

6

7

N

8

Relay

4

3

8

1Y

6

5

7

WHT

ORG

PNK

P S

1

2

1

2

WHT

PNK


Earth

Terminal

23S C

H L

95

51C 96

52C

A

B

R S T 13 31

U V W 14 32

2 4 6

C

Connector

6P (WHT)

5

5

4

4

3

3

2

2

1

1

P

S

49C

R

S

T

CM

ORG FM

W

854-2-5268-458-00-0 (C253G8)

SM830042

– 48 –



4

SPW-C253G8

SPW-C253G8/M


1

1Y

2

4

L1

5

63PH

1

B

C

47C

A

L2

L3

6

7

N

8

52C

R

S

47C

T

2

95

51C

96

49C

5

1Y

3

52C

51C

CM

52C

13

14

H

C

23S

L

5 4

FM

3 2 1

C

Symbols

CM

FM

52C

51C

49C

47C

63PH

23S

C

1Y

Description

Compressor motor

Fan Motor


Compressor Motor Overcurrent Relay

Compressor Motor Thermal Protector

Negative Phase Relay



Capacitor

Auxiliary Relay

Connector

Terminal Plate

S

854-2-5268-458-00-0 (C253G8)

3

SM830042

– 49 –


3


5

SPW-C363G8

SPW-C363G8/M

Terminal

Plate

1

2

L1

4

5

L2

L3

6

7

N

8


PNK

BRN

S

C

R

47C

T B A

Earth

Terminal

Relay

4

3

8

2Y

6

5

7

WHT

ORG

PNK

P S

1

2

1

2

WHT

PNK


C

23S

L

H

1Y

7

WHT

VLT

WHT

5

8

3 1 4

6

2

95

51C 96

A

52C

B

R S T

2 4 6

13 31

U V W 14 32

C1 C2

5

5

4

4

3

3

2

2

1

1

P

S

5

5

4

4

3

3

2

2

1

1

P

S

49C

R

S

T

CM

ORG

FM1 FM2

GRY

W

854-2-5268-459-00-1 (C363G8)

SM830042

– 50 –



5

SPW-C363G8

SPW-C363G8/M


1

2Y

2

52C

13

14

4

L1

5 63PH

1

B

C

47C

A

H

C

23S

L

1Y

L2

L3

6

7

N

8

52C

R

S

47C

T

2

95

51C

96

49C

5

2Y

3

52C

1

4

5

3

5

FM1

3 2 1

2

4

6

4

5

FM2

3 2 1

C1 C2

51C

CM

Symbols

CM

FM1, 2

52C

51C

49C

47C

63PH

23S

C1, 2

1Y, 2Y

Description

Compressor motor

Fan Motor



Compressor Motor Thermal Protector




Capacitor

Auxiliary Relay

Connector

Terminal Plate

S

854-2-5268-459-00-1 (C363G8)

3

SM830042

– 51 –


3


6

SPW-C483G8

SPW-C483G8/M

Terminal

Plate

1

2

4

L1

L2

L3

5

6

N

7

8


PNK

BRN

S

C

R

47C

T B A

Earth

Terminal

PNK

4

3

8

2Y

6

5

7

ORG

Relay

WHT

PNK

P S

1

2

1

2

WHT

PNK


T1

T2

T3

CM

C

23S

L

H

1Y

7

WHT

VLT

WHT

5

8

3 1 4

6

2

95

51C 96

A

52C

B

R S T

2 4 6

13 31

U V W 14 32

C1 C2

5

5

4

4

3

3

2

2

1

1

P

S

5

5

4

4

3

3

2

2

1

1

P

S

FM1 FM2

GRY

W

854-2-5268-460-00-1 (C483G8)

SM830042

– 52 –



6

SPW-C483G8

SPW-C483G8/M


1

2Y

2

52C

13

14

4

L1

5 63PH

1

B

C

47C

A

H

C

23S

L

1Y

L2 6

L3

7

N

8

52C

R

S

47C

T

2

95

51C

96

5

2Y

3

52C

1

4

5

3

5

FM1

3 2 1

2

4

6

4

5

FM2

3 2 1

C1 C2

51C

CM

Symbols

CM

FM1, 2

52C

51C

47C

63PH

23S

C1, 2

1Y, 2Y

Description

Compressor motor

Fan Motor






Capacitor

Auxiliary Relay

Connector

Terminal Plate

S

854-2-5268-460-00-1 (C483G8)

3

SM830042

– 53 –


3

– 54 –

SM830042

4. Service procedures

4. SERVICE PROCEDURES

4-1 Troubleshooting .............................................................................................56

(1) Check before and after Troubleshooting ................................................ 56

(2) Air conditioner does not operate ............................................................ 57

(3) Outdoor unit does not run ...................................................................... 61

(4) Indoor unit does not run ......................................................................... 63

(5) Some part does not operate ................................................................... 63

(6) Outdoor fan does not run ....................................................................... 64

(7) Outdoor fan speed is not switched from High to Low even when the outdoor temperature falls below 25.5

°

C. .......................................... 64

(8) Compressor does not run ....................................................................... 64

(9) Poor cooling ............................................................................................65

(10) Excessive cooling ....................................................................................66

4-2 A Sensor is Defective .....................................................................................67

4-3 Operation of Major Electrical Parts ............................................................... 67

4-4 Checking the Electrical Components ............................................................ 68

(1) Measurement of Insulation Resistance .................................................. 68

(2) Checking the Protective Devices............................................................ 69

(3) Checking the Electrical Parts ................................................................. 70

(4) Thermistor Characteristic Curve............................................................. 71

4

– 55 –

SM830042


4

4-1 Trobleshooting

(1) Check before and after Troubleshooting

Many problems may happen because of wiring or power supply problems, so you should check these areas first. Problems here can cause false results in some of the other tests, and so should be corrected first.

1

. Check power supply wiring

(a) Single-phase

❑

Check that power supply wires are correctly connected to terminal No.

1 through No. 4 on the 4P terminal plate in the indoor unit and L and N on the 6P terminal in the outdoor unit.

(b) 3-phase

❑

Check that power supply wires are correctly connected to terminal No.

1 through No. 4 on the 4P terminal plate in the indoor unit and L1 through L3 and N on the 8P terminal in the outdoor unit.

2

. Check inter-unit wiring

❑

Check that inter-unit control wiring (AC 220 - 240 V Line voltage) is correctly connected between the indoor unit and outdoor unit.

Single-phase outdoor unit


B

1

2

1

2

3-phase outdoor unit


B

1

2

1

2

4

Ground

Inter-Unit

Wiring

(Line voltage)

4

L

N

A

Power supply

L

N

Ground

4

Ground

Inter-Unit

Wiring

(Line voltage)

4

L1

L2

L3

N

A

Power supply

L1

L2

L3

N

0611_X_S

Ground

0612_X_S

3

. Check power supply

Fig. 16

❑

Check that voltage is within the specified range (

±

10% of the rating).

❑

Check that power is being supplied.

If the following troubleshooting must be done with power being supplied, be careful not to thouch any uninsulated live part that can cause

ELECTRIC SHOCK.

4

. Check the lead wires and connectors in indoor and outdoor units.

❑

Check that the sheath of lead wires is not damaged.

❑

Check that the lead wires are firmly connected at the terminal plate.

❑

Check that the wiring is correct.

5

Reference

• Condition of general cooling operation (Thermo. ON)

SWEEP..................ON

Indoor fan speed....HIGH

SM830042

– 56 –


(2) Air conditioner does not operate

1

Circuit breaker trips (or fuse blows).

(a) When the circuit breaker is set to ON, it is tripped soon.

• There is a possibility of ground fault.

• Check insulation resistance.

If resistance value is 1M

Ω

or less, it is a defect of insulation.

L

N

(Example)

Circuit breaker

Power supply cords

1

Outdoor

unit

+

+

5 1

6 2

3

4

+

+

2

4

3

+

+

+

Interunit

+ power line

3

4

1

2

Indoor

unit

Earth

*Set the circuit breaker to OFF.

1

Remove power supply cords

from the terminal plate in

the outdoor unit.

• Check insulation resistance

of power supply cords.

OK

NO

Execute rewiring.

L1

L2

L3

N

Circuit breaker

1

+

+

Power

+

+ supply cords

2

4

3

Outdoor

unit

5 1

6

+ +

7 2

+

+

3

Interunit

+

+ power line

2

4

3

Indoor

unit

1

Earth

2

Remove interunit power line


the outdoor unit.


of outdoor unit.

OK

NO

3 Remove interunit power line


the indoor unit.


of indoor unit.

OK

NO

Interunit power lines are defective.

Insulation of outdoor unit is defective.

Insulation of outdoor unit is defective.

Execute rewiring.

• Check insulation

resistance of

electrical parts

in the outdoor unit.

• Check insulation

resistance of

electrical parts

in the outdoor unit.

0613_X_S

4

SM830042

– 57 –


(b) Circuit breaker trips in several minutes after turning the air conditioner on.

• There is a possibility of short circuit.

• Check capacity of circuit

breaker.

Is capacity of circuit breaker sufficient ?

NO

Replace it with a suitable one.

(= larger capacity)

• Check resistance of

outdoor fan motor winding.


compressor motor winding.

0614_X_S

4

2

Neither indoor unit nor outdoor unit runs.

A.

Power is not supplied

• Check power supply.

Is power being supplied

to outdoor unit ?

NO

Circuit breaker is tripped.

Power failure.

Reset the breaker.

Wait for recovery or consult power supply company.

0615_X_S

B.

Check remote control unit.

• Try to run both indoor and

outdoor units with another

remote control unit.

NO

OK

The other remote control

unit is defective.

Refer to item C.

0616_X_S

SM830042

– 58 –


C.

Check “Operation selector” switch in the indoor unit.

: In case of wireless remote control unit (GS type)

• Has “Operation selector”

switch been set to ON

position ?

NO

YES

Set “Operation selector” switch to ON.

But neither unit runs.

IND. LAMP Ass’y or P.C.B.

Ass’y in the indoor unit is defective.

Switch Ass’y or P.C.B.

Ass’y in the indoor unit is defective.

0617_X_S

D.

Check compressor motor protectors.

a) High pressure switch (63PH)

• Check high pressure switch.

Does high pressure switch

actuate ? (63PH)

YES

• Is outdoor heat exchanger

coil dirty or are there

obstacles near air suction

inlet of outdoor unit ?

NO

YES

Disconnect the socket from 2P (WHT) connector.

Check the continuity between No.1 and No.2 poles of the socket.

Clean heat exchanger coil or remove obstacles.

• Check if outdoor fan rotates.

Refer to “Only outdoor fan

does not run.”

0618_X_S

b) Compressor motor overcurrent relay (51C)

• Check compressor motor

overcurrent relay. (51C)

Does it actuate ?

YES

NO

Refer to “CHECKING ELECTRICAL COMPONENTS

(Electro magnetic contactor)”.

• Check power supply voltage.

Is voltage 90% or less of

rated voltage ?

YES

NO 90% or more of rated voltage.

• Following causes may be considered.

Locked rotor of compressor.

Overcharged refrigerant.

Air shortage of outdoor unit ventilation.

Obstacles in front of outdoor unit.

Consult power supply company and restore voltage to normal value.

0619_X_S

SM830042

– 59 –

4

4


E.

Check. auxiliary relay. (1Y or 2Y)

• Check coil resistance of

auxiliary relay.

(1Y or 2Y)

0620_X_S

F.

Check indoor fan motor thermal protector (49FMI)

• Disconnect the socket from 9P (WHT) connector.

• Check the continuity

between No. 8 and No.9

poles of the 9P socket.

No continuity.

The thermal protector (49FMI) is operated.

Fan cannot be rotated.

• Check fan rotation.

Rotate the fan gently once

or twice by hand.

OK

• Check fan motor capacitor.

Check fan casing for foreign matter on the inside.

Fan motor burnout or foreign matter in bearing.

Remove foreign matter or repair.

Repair or replace.

0621_X_S

G. Check fuse on the P.C.B. Ass’y in the indoor unit.

• Check fuse on the P.C.B.

Ass'y in the indoor unit

for continuity.

When the fuse blows.

• Check transformer. (TR)

OK

• Check resistance of indoor

fan motor winding.

(FMI)

OK

• Check resistance of louver

motor winding. (LM)

OK

• Check resistance of drain

pump winding. (DP)

OK

• Check resistance of dew

proof heater. (DPH)

OK

• Check coil of compressor

motor magnetic contactor.

(52C)

OK

• P.C.B. Ass'y is defective.

0622_X_S

SM830042

– 60 –


(3) Outdoor unit does not run.

A.

Check COOL/FAN selector switch in the remote control unit.

• Is COOL/FAN selector switch

set to COOL ?

NO

Set to COOL.

0623_X_S

B.

Check set temperature.

Try to lower set temperature by Temperature setting button “COOLER”.

YES

• Set “Operation selector”

switch to TEST in the

indoor unit.

Outdoor unit runs.

Is room temperature too low ?

NO

• Try to run both indoor and

outdoor units with another

remote control unit.

OK

The other remote control unit is defective.

(Room sensor in the remote control unit is defective.)

0624_X_S

C.

Outdoor unit is abnormal.

a) Check power supply wiring

• Check negative phase relay.

(47C)

Dose it operate ?

NO

Rewire power supply cords.

0625_X_S

4

SM830042

– 61 –

4


b) Check compressor motor thermal protector (49C)


thermal protector. (49C)

Is temperature of compressor abnormally high ?

YES

Refrigerant gas shortage.

NO

Compressor is defective.

Charge refrigerant gas.

0626_X_S


magnetic contactor.

(52C)

0627_X_S

(Only outdoor fan does not run.)

D.

Check indoor unit P.C.B.

• Check P.C.B. Ass’y.

• Check voltage between

terminals No.2 and No.4 at

terminal plate.

No voltage appears.

P.C.B. Ass’y is defective.

0628_X_S

E.

Check float switch.

• Refer to “2-3 Drain Pump Control”

Is drainage prevented from flowing ?

NO (Wait for 20 minutes.)

YES

• Check drain hose.

• Check float switch (FS).

0629_X_S

SM830042

– 62 –


(4) Indoor unit does not run.

(Indoor fan and louver motor do not run.


0630_X_S

(5) Some part does not operate.

(1) Indoor fan does not run.



or twice by hand.


Check fan casing for foreign matter on the inside.

Fan motor burnout or foreign matter in bearing.

• Check resistance of fan

motor winding.

OK

• Check fan motor capacitor.

OK

Relay RY1 or RY2 on the



Repair or replace.

0631_X_S

4

(2) Louver motor does not run.


louver motor winding.

OK

P.C.B. Ass’y or remote control unit is defective.

0632_X_S

SM830042

– 63 –


(6) Outdoor fan does not run.



or twice by hand.


• Check fan casing

for foreign matter

on the inside.

• Fan motor burnout

or foreign matter

in bearing.

• Check resistance of fan

motor winding.

OK

• Check fan motor capacitor


Repair or replace.

• Check continuity between

terminals on the compressor

motor magnetic contactor.

0633_X_S

(7) Outdoor fan speed is not switched from High to Low even when the outdoor temperature falls below 25.5

°

C.

• Check the thermostat (23S).

4

SPW-C363G8, SPW-C363G8/M and SPW-C483G8, SPW-C483G8/M

• Check coil resistance of

the auxiliary relay.

(1Y)

0634_X_S

(8) Compressor does not run.

NG

• Check compressor motor capacitor.

OK

NG

• Check resistance of compressor motor winding.

OK

• Check compressor motor overload relay.

(Only SPW-C253G5, SPW-C253G5/M)

OK

NG

NG

• Check continuity between terminals R-U, and

then S-V on the magnetic contactor.

OK

Refer to 4-4

Refer to

4-4

Refer to

4-4

Refer to

4-4

Replace magnetic contactor.

0635_X_S

SM830042

– 64 –


(9) Poor cooling

Check installation position

of remote control unit.

• Does cool air from air condi-

tioner reach remote control

unit directly ?

YES

Change installation position of remote control unit.

• Is wide tube between indoor unit

and outdoor unit insulated ?

NO

Insulate wide tube and then execute taping with narrow tube.

YES

• Measure temperatures of suction

and discharge air of indoor unit.

Temperature difference is small.

Possibility of refrigerant shortage.

Temperature difference between suction and discharge air is large enough (Approx. 10 deg. or more).

Charge refrigerant

(R22).

• Check clogging of air

filter.

Air filter is clogged.

Clean filter.

• Is fan speed set to LOW ?

YES

Set fan speed to either

HIGH or MEDIUM.

• Review cooling load estimate,

if performance of air conditioner

is normal.

Reduce cooling load or replace the unit with higher cooling capacity.

0636_X_S

4

– 65 –

SM830042

4


(10) Excessive cooling.

• The set temperature is too low.

YES

• Is the remote control unit installed

at a place where it can

detect the room temperature

properly ?

NO

Set the temperature to higher value using temperature setting button of the remote control unit.

Change installation position of the remote control unit.

0637_X_S

– 66 –

SM830042


4-2 A Sensor is Defective.

1

Indoor (heat exchanger) coil temp. Sensor is defective.

(a) Open (=No continuity in sensor)

Compressor and outdoor fan repeat ON for 10 minutes and OFF for 6 minutes when sensor opens.

(b) Short

“Freeze Prevention” does not operate when dehumidified water is frozen on the indoor coil.

2

Room temp. Sensor (in the remote control unit) is defective.

(a) Open (=No continuity in sensor)

Neither outdoor fan nor compressor runs.

(b) Short

Outdoor fan and compressor do not stop. — Excessive cooling.

4-3 Operation of Major Electrical Parts

Operation Mode

Cool

-ing

Fan

Flap

(Function)

Manual

Energy saver

Thermo. ON

Thermo. OFF

Thermo. ON

Thermo. OFF

Night setback

Thermo. ON

Timer

(set)

Thermo. OFF

ON Timer

OFF Timer

Freeze prevention

Sweep

Stop

Operation

Cool

Fan

Cool

Fan

Indoor unit and Remote Control unit

Room

Temp.

Indicator lamps

Cool Timer

V

V

V

V

V

V

V

V

V

V

V

V

V

V

V V

V

V

V

V

V

V

V

V

V

*

*

Night setback

Energy saver

V

V

V

V

V

V

*

*

Sweep

Fan

V

V

V

V

V

V

V

V

V

V

V

Oudoor unit

Fan Compressor

V

V

V

V

V

V

*

*

V

V

V

V

V

V

*

*

NOTE

V

* Refer to Cooling Mode.

4

SM830042

– 67 –


4-4 Checking the Electrical Components

(1) Measurement of Insulation

Resistance

• The electrical insulation is acceptable when the resistance exceeds 1 M

Ω

.

1

Power Supply Wires

Clamp the earthed wire of the Power Supply wires with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires. (Fig. 42)

Then measure the resistance between the earthed wire and the other power wires. (Fig. 42)

Probe

Clip

Earthed wire

Terminal plate

Insulation tester

0638_X_S

Fig. 42

Probe

2

Indoor Unit

Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on the terminal plate (Fig. 43)

3

Outdoor Unit

Measure the resistance by placing a probe on the terminal plate in the same manner as explained above

2

. (Fig. 43)

Clip

Copper tube or metallic part

Insulation tester

0639_X_S

Fig. 43

Probe

4

4

Measurement of Insulation Resistance for

Electrical parts

• Disconnect the connector of the desired electric part from terminal plate, P.C.B. Ass’y, etc. (Fig. 44)

• Similarly, disconnect the lead wires from compressor, capacitor, etc. (Fig. 45)

• Measure the resistance in the same manner as illustrated on the right.

Refer to Electrical Wiring Diagram.

NOTE

If the probe does not enter the hole because the hole is too narrow, use a probe with a thinner pin.

Metallic part

Clip

Clip

Copper tube or metallic part

Probe

Insulation tester

0640_X_S

Fig. 44

From fan motor, compressor and other parts.

Insulation tester

0641_X_S

Fig. 45

SM830042

– 68 –


(2) Checking the Protective Devices

• Disconnect the connector, which consists of P (plug) and S (socket) when you want to check the protective device.

• Then check continuity among plug’s (and/or socket’s) terminal as in Fig. 46.

• Normality of the protective device can be judged by the following table.

The Protective Device is proved normal if there is a continuity between terminals.

socket

Multimeter

Ω

0642_X_S

Fig. 46

1

Indoor fan motor thermal protector (49FI) . . . . . . Indoor unit

• Disconnect the connector which leads to the indoor fan motor (FMI).

• Check the socket’s terminals.

2

Compressor motor thermal protector (49C) . . . . . . Outdoor unit

• Disconnect both the connectors in the outdoor unit.

• Check terminal between the plug and socket.

3

Outdoor fan motor thermal protector (49FO) . . . . . . Outdoor unit

• Disconnect both the connector which leads to the outdoor fan motor (FMO).

• Check socket’s terminal.

4

– 69 –

SM830042


4

(3) Checking the Electrical Parts

1

Power transformer (TR1) ................. Indoor unit

*Measure the coil resistance.

• Primary 220-240 V ; Measure the resistance between two WHT lead wire terminals of socket connected to power transformer.

• Secondary 10.6V ; Measure the resistance between two BRN lead wires.

Refer to “1–3–(A) Other component specifications”.

2

Indoor fan motor (FMI) ............... Indoor unit

*Measure the coil resistance.

• Measure the resistance between each terminal of the socket connected to the indoor fan motor.

Refer to “1–2–(A) Major component specifications”.

3

Outdoor fan motor (FMO) ........... Outdoor unit *Measure the coil resistance.

• Measure the resistance in the same manner as explained above

2

.

Refer to “1–2–(B) Major component specifications”.

4

Fan motor capacitor ............ Both in indoor and outdoor unit

• Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig. 47. Observe the deflection of the pointer, setting the resistance measuring range of the multimeter to the maximum value.

• The capacitor is “acceptable” if the pointer bounces to a great extent and then gradually returns to its original position.

NOTE

The range of deflection and the deflection time differ according to the capacity of the capacitor.

Multimeter

– 70 –

Fan motor

Capacitor

0643_X_S

Fig. 47

SM830042


5

Fuse on indoor P.C.B. Ass’y

• Remove the P.C.B. Ass’y from the electrical component box. Then pull out the fuse from the P.C.B. Ass’y. (Fig. 48)

Fuses

Indoor P.C.B. Ass’y

0644_X_S

Fig. 48

• The check for continuity of the fuse by using the multimeter. (Fig. 49)

Having continuity is acceptable.

Fuse

0645_X_S

Fig. 49

5

4

7

6

3

10

9

8

2

1

(4) Thermistor Characteristic Curve

1

Room temp. sensor

(KTEC-35)

1

Coil sensor

30

25

20

15

10

5

0

40

(PBC-41E)

35

–20 –15 –10 –5 0 5

Temperature (

°

C)

10 15 20

0375_M_I

10 15 20 25 30

Temperature (

°

C)

35 40

0374_M_I

SM830042

– 71 –

4


4

– 72 –

SM830042

Sanyo SPW-X253 G56, GS56, SPW-X303 G56, GS56, SPW-X363 G56, GS56, SPW-X483 G56, GS56, SPW-C253 G5, G5/M, G8, G8/M, SPW-C303 G5, G5/M, SPW-C363 G5, G5/M, G8, G8/M, SPW-C483 G8, G8/M split-system air conditioner Service manual

Assistant Bot

SERVICE MANUAL

SPLIT SYSTEM AIR CONDITIONER

Section

If Necessary, Get Help

In Case of Improper Installation

When Wiring

When Transporting

When Installing

When Connecting Refrigerant Tubing

When Servicing

Introduction: Read Me First!

WHAT IS IN THIS MANUAL

Section 1: Specifications, tells you about the physical and electrical make up of the unit, as

Section 2: Processes and Functions, explains each different part of the cooling and

Section 3: Electrical Data, which has fold-out schematic and wiring diagrams so you can

Section 4: Service Procedures, has two main parts, a

Section 5: Instruction Manual, is the same manual the user will have, and it contains

HOW TO USE THIS MANUAL

Section 3: Servicing Procedures to find the problem, fix it, and restore the unit to its proper functioning.

Look at the TABLE OF CONTENTS to get an idea of what is in this manual and where to

Look at the chapter about TROUBLE SHOOTING, so you are familiar with the way the flow

Look at the chapter about CHECKING ELECTRICAL COMPONENTS. You already know

Read the Instruction Manual! The Instruction Manual is included here because it helps you

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5-1

Fig. 5-2

Fig. 6

Chart Summary and Explanations

Fig. 7

Fig. 8

°

°

°

Fig. 16

±

Ω

°

Power Supply Wires

Indoor Unit

Outdoor Unit

Measurement of Insulation Resistance for

Electrical parts

NOTE

Fig. 46

NOTE

Fig. 47

Fig. 48

Fig. 49

Key Features

Frequently Answers and Questions

What is the power source for the SPW-X253G56 model?

What is the maximum tubing length for the SPW-X253G56 model?

What is the refrigerant amount at shipment for the SPW-X253G56 model?

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