Mitsubishi Electric SUY-SA18VA.TH-T Manuale operativo

TECHNICAL & SERVICE MANUAL

No.OCH649

SPLIT-TYPE, AIR CONDITIONERS

R410A

Outdoor unit

[Model Name] [Service Ref.]

SUY-SA18VA SUY-SA18VA.TH-T

SUY-SA24VA SUY-SA24VA.TH-T

SUY-SA30VA SUY-SA30VA.TH-T

SUY-SA36VA SUY-SA36VA.TH-T

CONTENTS

1. REFERENCE MANUAL .................................... 2

2. TECHNICAL CHANGES ................................... 3

3. PARTS NAMES AND FUNCTIONS .................. 7

4. SPECIFICATION................................................ 8

5. NOISE CRITERION CURVES ......................... 10

6. OUTLINES AND DIMENSIONS .......................11

7. WIRING DIAGRAM.......................................... 13

8. REFRIGERANT SYSTEM DIAGRAM ............. 15

9. ACTUATOR CONTROL................................... 18

10. TROUBLESHOOTING..................................... 19

11. DISASSEMBLY PROCEDURE........................ 35

Indication of

model name

Note:

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HFC

utilized

R410A

October 2016

PARTS CATALOG (OCB649)

1REFERENCE MANUAL

1-1. INDOOR UNIT SERVICE MANUAL

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OCB643

3/<63%$7+7 2&+

OCB641

3(<63-$/7+7 —

OCH649



3PARTS NAMES AND FUNCTIONS

SUY-SA18VA.TH-T

SUY-SA24VA.TH-T

SUY-SA30VA.TH-T

SUY-SA36VA.TH-T

Air outlet

Drain outlet

Piping

Drain hose

Air inlet

(back and side)

Piping

Air outlet

Drain outlet

Air inlet

(back and side)

Drain hose

OCH649

SPECIFICATION

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OCH649

6OUTLINES AND DIMENSIONS

Drain hole

42 (In case of Heater models

33)

Bolt pitch for

installation

Oval holes 2-10×21

Air in

Air out

304-325

285

400

17.5

344.5

L-Bend condenser models

Handle

Bolt pitch for installation

22.3

550

280

500150

302.5

800

Service port

Gas refrigerant pipe joint

Liquid refrigerant pipe joint

Service panel

170.5

99.5

164.5

100mm or more 350mm or more

Basically open

100mm or more without any obstruction

in front and both sides of the unit

REQUIRED SPACE

100mm or more

200mm or more.

Open 2 sides of left, right,

or rear side

Flared

Refrigerant

pipe joint

Liquid refrigerant pipe

Gas refrigerant pipe

Model name SUY-SA18VA.TH-T

12.7(1/2 inch)

6.35(1/4 inch)

Unit: mm

SUY-SA18VA.TH-T

OCH649

452

880

840 81

109

Service port

Gas refrigerant pipe joint

Liquid refrigerant pipe joint

Service panel

195

99.5 65

Drainage hole

Bolt pitch for

installation

Bolt pitch for installation

Air out

Air in

2-holes 10×21

417.5

175 500

330

360

100mm or more

200mm or more if

there are obstacles

to both sides

REQUIRED SPACE

350mm or more100mm or more

Open as a rule

500mm or more if

the front and both

sides are open

Open as a rule

500mm or more if the back,

both sides and top are open

Flared

Refrigerant

pipe joint

Liquid refrigerant pipe

Gas refrigerant pipe

Model name SUY-SA24VA.TH-T

SUY-SA30VA.TH-T

SUY-SA36VA.TH-T

Flared

15.88(5/8 inch)

9.52(3/8 inch)

SUY-SA24VA.TH-T

SUY-SA30VA.TH-T

SUY-SA36VA.TH-T

Unit: mm

OCH649

1313

7WIRING DIAGRAM

tº tº tºtº

12-24V

220V ~

FIN TEMP. THERMISTOR

OUTDOOR HEAT EXCHANGER

TEMP. THERMISTOR

TERMINAL BLOCK

TRANSFORMER

RELAY

NAME

RT64

RT68

T801

X64

SYMBOL

EXPANSION VALVE COIL

REACTOR

COMPRESSOR

FAN MOTOR

CIRCUIT PROTECTION

LIQUID PIPE TEMP. THERMISTOR

DISCHARGE TEMP. THERMISTOR

NAME

LEV

L61

PTC64. PTC65

RT61

RT62

SYMBOL

SMOOTHING CAPACITOR

DIODE MODULE

FUSE (T20AL250V)

FUSE (T3.15AL250V)

POWER MODULE

POWER DEVICE

LED

NAME

C61, C62, C63

DB61

F61

F801, F901

IC700, IC820, IC932

IC802

LED

SYMBOL

INVERTER P.C. BOARD

LED

CN644CN641CN641CN643CN931

NOTES:

1. About the indoor side electric

wiring refer to the indoor

unit electric wiring diagram

for servicing.

CN932

IC932

F901 F801

T801

IC802

LEV

CN724

RT61 RT62 RT68

L61

X64

LD61

LD71 PTC65

PTC64

LD62

LD-E1

LD63

LD-S

LD66B

F61

RT64

CN642

CN61

LDW

LDV

LDU

IC700

IC820

OG BN

DB61

LD70 LD66A

C63 C62 C61

+ + +

~ ~

1 2

1 2 45 1 11 1 63

3 5

CIRCUIT

BREAKER

BU TB

POWER SUPPLY

1 phase ~

220V 50Hz

TO INDOOR UNIT

SUY-SA18VA.TH-T

SUY-SA24VA.TH-T

OCH649

TRANSFORMER

TERMINAL BLOCK

RELAY

SMOOTHING CAPACITOR

FUSE(T3.15AL250V)

IGBT Module

DIODE Module

IGBT Module

REACTOR

COMPRESSOR

FAN MOTOR

LED

CIRCUIT PROTECTION

EXPANSION VALVE COIL

LIQUID PIPE TEMP. THERMISTOR

CIRCUIT PROTECTION

TEMP. THERMISTOR

OUTDOOR HEAT EXCHANGER

FIN TEMP. THERMISTOR

DISCHARGE TEMP. THERMISTOR

NOTE: About the indoor side electric wiring, refer to the indoor unit electric wiring diagram for servicing.

TB1,TB2

T801

X64

SYMBOL

LED

LEV

PTC64

SYMBOL

CB1~3

F880

F901

IC700

IC820

IC932

SYMBOL

NAMENAME NAMENAME

PTC65

RT61

RT62

RT64

RT68

SYMBOL

RT64RT62

RT61 RT68 LEV

CN671 CN672 CN673

t°t° t°t°

CN724

CN931

15 3 1

CN932

IC932

PTC64

PTC65

TAB64

TAB62

IC820

TAB6

TAB5

LD9

T801

INVERTER

P.C. BOARD

LED

CB1

CB2

+ +

TAB7

TAB8TAB9

IC700

CB3

UMC

1 1

3 3

F901F880

TAB61

X64

LDE2

LDE1

TB2

12-24V

220V~

TABS3

TB1

CIRCUIT

BREAKER

GNYE

POWER SUPPLY

1 phase ~ 220V 50Hz

TO INDOOR UNIT

SUY-SA30VA.TH-T

SUY-SA36VA.TH-T

OCH649

1515

REFRIGERANT SYSTEM DIAGRAM

Unit: mm

SUY-SA18VA.TH-T

Unit: mm

SUY-SA24VA.TH-T

SUY-SA30VA.TH-T

Flared connection

Discharge

temperature

thermistor

(RT62)

Flared connection

Stop valve(L)

(with strainer(#100))

Stop valve(G)

(with service port)

Refrigerant flow in cooling

Compressor

Refrigerant pipe ø12.7 (1/2")

Refrigerant pipe ø6.35 (1/4")

Strainer

#50

Strainer

#100

Strainer

#50×2

Liquid pipe

temperature

thermistor

(RT61)

Capillary tube

ø3.0×ø1.8×600(×2)

Outdoor heat

exchanger

temperature

thermistor

(RT68)

Muffler

Outdoor

heat

exchanger

LEV

Capillary tube

ø4.0×ø2.4×240

Flared connection

Discharge

temperature

thermistor

(RT62)

Flared connection

Stop valve(L)

Stop valve(G)

(with service port)

Refrigerant flow in cooling

Compressor

Refrigerant pipe ø15.88 (5/8")

Refrigerant pipe ø9.52 (3/8")

Strainer

#50

Strainer

#100

Strainer

#100

Capillary tube

ø4.0×ø2.4×100

Outdoor heat

exchanger

temperature

thermistor

(RT68)

Muffler(#100)

Outdoor

heat

exchanger

LEV

Liquid pipe

temperature

thermistor

(RT61)

OCH649

16 

Unit: mm

SUY-SA36VA.TH-T

Flared connection

Discharge

temperature

thermistor

(RT62)

Flared connection

Stop valve(L)

Stop valve(G)

(with service port)

Refrigerant flow in cooling

Compressor

Refrigerant pipe ø15.88 (5/8")

Refrigerant pipe ø9.52 (3/8")

Strainer

#50

Strainer

#100

Strainer

#100

Capillary tube

ø4.0×ø2.4×100

Outdoor heat

exchanger

temperature

thermistor

(RT68)

Muffler(#100)

Outdoor

heat

exchanger

LEV

Liquid pipe

temperature

thermistor

(RT61)

OCH649

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