Mitsubishi electric Suh-1.6vr2 Operating manual

TECHNICAL & SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SPLIT-TYPE, AIR CONDITIONERS

CONTENTS

1. TECHNICAL CHANGES ···········································2

2. COMBINATION OF INDOOR OUTDOOR UNITS·····2

3. PART NAMES AND FUNCTIONS·····························3

4. SPECIFICATIONS·····················································4

5. DATA··········································································7

6. OUTLINES AND DIMENSIONS ······························10

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

REFRIGERANT SYSTEM DIAGRAM

···························19

9. TROUBLESHOOTING ············································28

10. DISASSEMBLY PROCEDURE ·······························32

11. PARTS LIST ····························································48

No. OC282

REVISED EDITION-B

OUTDOOR UNIT

Outdoor unit

[Model names] [Service Ref.]

SUH-1VR SUH-1VR.TH

SUH-1.6VR SUH-1.6VR.TH

SUH-1.6VR2 SUH-1.6VR2.TH

SUH-2VR SUH-2VR.TH SUH-2VR1.TH SUH-2VR2.TH

SUH-2.5VR SUH-2.5VR.TH

SU-1.6NR SU-1.6NR.TH

SU-2NR SU-2NR.TH

SU-2.5NR SU-2.5NR.TH

SU-1VR SU-1VR.TH SU-1VR.TH-T

SU-1.6VR SU-1.6VR.TH SU-1.6VR.TH-T

SU-1.6VR2 SU-1.6VR2.TH SU-1.6VR2.TH-T

SU-2VR SU-2VR.TH SU-2VR.TH-T

SU-2VR1.TH SU-2VR1.TH-T

SU-2.5VR SU-2.5VR.TH SU-2.5VR.TH-T

• SU-1VR.TH-T, SU-1.6VR2.TH-T and SU-2VR1.TH-T

has been added.

• Instruction of troubleshooting has been added to

pege 29 ans 30.

• Please void OC282 REVISED EDITION-A.

OC282-A--1.qxp 03.1.28 4:29 PM Page 1

1TECHNICAL CHANGES

2COMBINATION OF INDOOR OUTDOOR UNITS

SEH-1.6AR.TH

SEH-1.6AR1.TH

SEH-2AR.TH

SEH-2.5AR.TH

SE-1.6AR.TH

SE-1.6AR1.TH

SE-2AR.TH

SE-2.5AR.TH

SE-1.6AR.TH-T

SE-1.6AR1.TH-T

SE-2AR.TH-T

SE-2.5AR.TH-T

SLH-1AR.TH

SLH-1.6AR.TH

SLH-2AR.TH

SL-1AR.TH

SL-1.6AR.TH

SL-2AR.TH

SL-1AR.TH-T

SL-1.6AR.TH-T

SL-2AR.TH-T

—

VR2

—

VR2

—

1.6

Service Manual No.

OC281 REVISED EDITION-A

OC280 REVISED EDITION-A

Service Ref. 2 2.5 2.5

11.6 2 2.5

—

VR1

—

2.5

1.6

VR2

—

1.6 2

—

VR1

—

Indoor unit SUH- • .TH

Heat pump type Outdoor unit

Cooling only type

SU- • .TH SU- • .TH-T

VR1

VR2

(REVISED EDITION-A)

SUH-2VR1.TH SUH-2VR2.TH

● OUTDOOR HEAT EXCHANGER has changed.

● RESTRICTOR VALVE has changed.

● CAPILLARY TUBE has changed.

({4.0X{2.4XL660) ({3.0X{2.0XL250)

OC282-A--1.qxp 03.1.28 4:29 PM Page 2

PART NAMES AND FUNCTIONS

Air intake

Air outlet

Drain outlet

Piping

Drain hose

Air inlet

Air outlet

SUH-1VR.TH SUH-1.6VR.TH SUH-2VR.TH SUH-2.5VR.TH

SUH-1.6VR2.TH SUH-2VR1.TH

SUH-2VR2.TH

SU-1.6NR.TH SU-2NR.TH SU-2.5NR.TH

SU-1VR.TH SU-1.6VR.TH SU-2VR.TH SU-2.5VR.TH

SU-1.6VR2.TH SU-2VR1.TH

SU-1VR.TH-T SU-1.6VR.TH-T SU-2VR.TH-T SU-2.5VR.TH-T

SU-1.6VR2.TH-T SU-2VR1.TH-T

OC282-A--1.qxp 03.1.28 4:29 PM Page 3

4SPECIFICATIONS

SUH-2VR.TH

SUH-2VR1.TH

SUH-2VR2.TH

Single phase, 220-240V, 50Hz

33.18

NH-38VMDT

1700

C-R: 1.07 C-S: 2.26

RA6V50-OF

WHT-BLK : 116

BLK-RED : 111

28(990)

850

605

290

810-845

1.8

MS-32(N-1) O1.2

SUH-2.5VR.TH

NH-47VMDT

2200

C-R: 0.96 C-S: 2.70

RA6V85-AA

45(1590)

870

850

295

720-750

2.4

MS-32(N-1) O1.2

WHT-BLK : 62.7

BLK-YLW : 30.2

YLW-RED : 62.9

Power supply

Service Ref.

m3/min(CFM)

rpm

Compressor

Outdoor

fan motor

Dimensions Width

Height

Depth

RT61(at 0:)

Weight

Special

remarks

Model

Output

Winding resistance (at 20:)

Model

Winding resistance (at 20:)

Airflow

Sound level (Hi)

Fan speed (Hi)

Fan speed regulator

Refrigerant filling capacity (R-22)

Refrigerant oil

Thermistor

Power supply

Service Ref.

m3/min(CFM)

rpm

Compressor

Outdoor

fan motor

Dimensions Width

Height

Depth

RT61(at 0:)

Weight

Special

remarks

Model

Output

Winding resistance (at 20:)

Model

Winding resistance (at 20:)

Airflow

Sound level (Hi)

Fan speed (Hi)

Fan speed regulator

Refrigerant filling capacity (R-22)

Refrigerant oil

Thermistor

SUH-1VR.TH

Single phase, 220-240V, 50Hz

SUH-1.6VR.TH

RH-174VGHT

800

C-R: 3.30 C-S: 5.80

PN6V23-UA

WHT-BLK : 353

BLK-RED : 321

28(990)

780

540

255

710-760

0.8

MS-56 O0.30

RH-247VHAT

1200

C-R: 2.13 C-S: 3.91

1.65

33.18

SUH-1.6VR2.TH

RH-277VHAT

1300

C-R: 1.80 C-S: 3.00

1.4

RA6V40-EE

WHT-BLK : 130

BLK-RED : 135

36(1270)

850

605

290

780-820

MS-56 O0.52

OC282-A--1.qxp 03.1.28 4:29 PM Page 4

SU-2VR.TH SU-2VR1.TH

SU-2VR.TH-T SU-2VR1.TH-T SU-2.5VR.TH

SU-2.5VR.TH-T

Single phase, 220-240V, 50Hz

33.18

NH38VMDT

1700

C-R: 1.07 C-S: 2.26

RA6V50-OF

WHT-BLK : 116

BLK-RED : 111

28(990)

850

605

290

810-845

1.6

MS-32(N-1) O1.2

NH47VMDT

2200

C-R: 0.96 C-S: 2.70

RA6V60-AB

39(1380)

850

605

290

860-890

2.15

MS-32(N-1) O1.2

WHT-BLK : 81

BLK-YLW : 92.2

YLW-RED : 102

Power supply

Service Ref.

m3/min(CFM)

rpm

Compressor

Outdoor

fan motor

Dimensions Width

Height

Depth

RT61(at 0:)

Weight

Special

remarks

Model

Output

Winding resistance (at 20:)

Model

Winding resistance (at 20:)

Airflow

Sound level (Hi)

Fan speed (Hi)

Fan speed regulator

Refrigerant filling capacity (R-22)

Refrigerant oil

Thermistor

SU-1VR.TH

SU-1VR.TH-T

Single phase, 220-240V, 50Hz

SU-1.6VR.TH

SU-1.6VR.TH-T

RH-174VGHT

800

C-R: 3.30 C-S: 5.80

RA6V23-HC

WHT-BLK : 353

BLK-RED : 321

28(990)

780

540

255

710-760

0.8

MS-56 O0.30

RH-247VHAT

1200

C-R: 2.13 C-S: 3.91

33.18

RA6V40-EE

WHT-BLK : 130

BLK-RED : 135

37(1310)

850

605

290

780-820

0.9

MS-56 O0.52

SU-1.6VR2.TH

SU-1.6VR2.TH-T

RH-277VHAT

1300

C-R: 1.80 C-S: 3.00

Power supply

Service Ref.

m3/min(CFM)

rpm

Compressor

Outdoor

fan motor

Dimensions Width

Height

Depth

RT61(at 0:)

Weight

Special

remarks

Model

Output

Winding resistance (at 20:)

Model

Winding resistance (at 20:)

Airflow

Sound level (Hi)

Fan speed (Hi)

Fan speed regulator

Refrigerant filling capacity (R-22)

Refrigerant oil

Thermistor

OC282-A--1.qxp 03.1.28 4:29 PM Page 5

SU-1.6NR.TH SU-2NR.TH

Single phase, 220V, 60Hz

RH-207NHDT

1000

C-R: 1.68 C-S: 2.78

RA6V40-EE

WHT-BLK : 130

BLK-RED : 135

38(1340)

820

0.9

MS-56 O0.52

NH-33NCDT

1500

C-R: 0.92 C-S: 1.93

RA6V50-OF

WHT-BLK : 116

BLK-RED : 111

39(1380)

850

605

290

860

1.65

MS-32(N-1) O0.85

33.18

SU-2.5NR.TH

NH-38NBDT

1700

C-R: 0.83 C-S: 1.83

RA6V60-AB

41(1450)

930

2.15

MS-32(N-1) O1.2

WHT-BLK : 81

BLK-YLW : 92

YLW-RED : 102

Power supply

Service Ref.

m3/min(CFM)

rpm

Compressor

Outdoor

fan motor

Dimensions Width

Height

Depth

RT61(at 0:)

Weight

Special

remarks

Model

Output

Winding resistance (at 20:)

Model

Winding resistance (at 20:)

Airflow

Sound level (Hi)

Fan speed (Hi)

Fan speed regulator

Refrigerant filling capacity (R-22)

Refrigerant oil

Thermistor

OC282-A--1.qxp 03.1.28 4:29 PM Page 6

DATA5

NOISE CRITERION CURVES

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SUH-1VR.TH 47

SPL(dB) LINE

<50Hz>

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SUH-1.6VR.TH

SUH-1.6VR2.TH 50

SPL(dB) LINE

<50Hz>

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SUH-2VR.TH

SUH-2VR1.TH

SUH-2VR2.TH

SPL(dB) LINE

<50Hz>

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SUH-2.5VR.TH Hi

NOTCH 53

SPL(dB) LINE

<50Hz>

OC282-A--1.qxp 03.1.28 4:29 PM Page 7

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SU-1VR.TH

SU-1VR.TH-T 45

SPL(dB) LINE

<50Hz>

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SU-1.6NR.TH 51

SPL(dB) LINE

<60Hz>

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SU-1.6VR.TH

SU-1.6VR2.TH

SU-1.6VR.TH-T

SU-1.6VR2.TH-T

SPL(dB) LINE

<50Hz>

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SU-2VR.TH

SU-2VR1.TH

SU-2NR.TH

SU-2VR.TH-T

SU-2VR1.TH-T

SPL(dB) LINE

<50/60Hz>

OC282-A--1.qxp 03.1.28 4:29 PM Page 8

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SU-2.5NR.TH Hi

NOTCH 54

SPL(dB) LINE

<60Hz>

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-70

NC-20

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SU-2.5VR.TH

SU-2.5VR.TH-T Hi

NOTCH 53

SPL(dB) LINE

<50Hz>

UNIT

MICROPHONE

Ambient temperature 35°C (Cooling) / 7°C (Heating)

Test conditions are based on JIS Z8731

OC282-A--1.qxp 03.1.28 4:29 PM Page 9

6OUTLINES AND DIMENSIONS

320

43-

35-

155

104

260

780

500

122

540

320

285

255

Service panel

Gas refrigerant

pipe joint

Refrigerant pipe

(flared) [9.52

Liquid refrigerant

pipe joint

Refrigerant pipe

(flared) [6.35

Air out

Air in

109 32

110

147

Drainage

3holes [33

If clearance

behind the outdoor

units only 40B or 50B

side Amust be

fully open.

10cm or more

Outdoor

unit

35cm or more

REQUIRED SPACE

40cm or more

SUH-1VR.TH

SU-1VR.TH

SU-1VR.TH-T

Unit: mm

OC282-A--1.qxp 03.1.28 4:29 PM Page 10

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