Mitsubishi Electric MUZ-GL09NA Manual de usuario

HFC

utilized

R410A

INDOOR UNIT

SERVICE MANUAL No. OBH733

REVISED EDITION-G

Indoor unit service manual

MSZ-GL•NA, MSY-GL•NA Series (OBH732)

MUZ-GL18/24NA

MUZ-GL18/24NAH

MUY-GL18/24NA

PARTS CATALOG (OBB733)

OBH733 REVISED EDITION-F is void.

Revision G:

• MUZ-GL09/12/15NA(H)- U2 and

MUY-GL09/12/15NA- U2 have been added.

CONTENTS

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

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

3. SPECIFICATION················································ 4

4. OUTLINES AND DIMENSIONS ························ 7

5. WIRING DIAGRAM············································ 9

6. REFRIGERANT SYSTEM DIAGRAM············· 21

7. DATA································································ 24

8. ACTUATOR CONTROL··································· 39

9. SERVICE FUNCTIONS ··································· 40

10. TROUBLESHOOTING····································· 41

11. DISASSEMBLY INSTRUCTIONS···················· 65

OUTDOOR UNIT

Models

MUZ-GL09NA

MUZ-GL09NAH

MUY-GL09NA

MUZ-GL12NA

MUZ-GL12NAH

MUY-GL12NA

MUZ-GL15NA

MUZ-GL15NAH

MUY-GL15NA

MUZ-GL18NA

MUZ-GL18NAH

MUY-GL18NA

MUZ-GL24NA

MUZ-GL24NAH

MUY-GL24NA

1TECHNICAL CHANGES

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Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.

Correct refrigerant is specified in the manuals and on the spec labels provided with our products.

We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by

failure to follow the instructions.

Revision A:

• MUZ-GL12/15NA- U1 , MUZ-GL12/15NAH- U1 and MUY-GL09/12/15NA- U1 have been added.

MUZ-GL09NA - U1 MUZ-GL09NAH - U1 MUY-GL09NA - U1

MUZ-GL09NA - U8 MUZ-GL09NAH - U8

MUZ-GL12NA - U1 MUZ-GL12NAH - U1 MUY-GL12NA - U1

MUZ-GL15NA - U1 MUZ-GL15NAH - U1 MUY-GL15NA - U1

MUZ-GL18NA - U1 MUZ-GL18NAH - U1 MUY-GL18NA - U1

MUZ-GL24NA - U1 ,U2 MUZ-GL24NAH - U1 MUY-GL24NA - U1

1. New model

Revision B:

• MUZ-GL09NA- U8 and MUZ-GL09NAH- U8 have been added.

Revision C:

• MUZ-GL09NA- U1 and MUZ-GL09NAH- U1 have been added.

Revision D:

• MUZ-GL24NAH- U1 has been added.

Revision E:

• Capacity corrections have been corrected [7-1. 2), 3)].

Revision F:

• MUZ-GL24NA- U2 has been added.

Revision G:

• MUZ-GL09/12/15NA(H)- U2 and MUY-GL09/12/15NA- U2 have been added.

MUZ-GL09NA - U1 MUZ-GL09NA - U2

MUZ-GL09NAH - U1 MUZ-GL09NAH - U2

1. Fan motor has been changed.

2. INVERTER P.C.BOARD has been changed.

3. EXPANSION VALVE has been changed.

4. 4-WAY VALVE has been changed.

5. R.V. COIL has been changed.

6. Compressor has been changed.

MUZ-GL12NA - U1 MUZ-GL12NA - U2

MUZ-GL12NAH - U1 MUZ-GL12NAH - U2

1. Fan motor has been changed.

2. INVERTER P.C.BOARD has been changed.

3. EXPANSION VALVE has been changed.

4. 4-WAY VALVE has been changed.

5. R.V. COIL has been changed.

MUY-GL09NA - U1 MUY-GL09NA - U2

1. Fan motor has been changed.

2. INVERTER P.C.BOARD has been changed.

3. EXPANSION VALVE has been changed.

4. 4-WAY VALVE has been changed.

5. Compressor has been changed.

6. Refrigerant charge has been changed.

MUY-GL12NA - U1 MUY-GL12NA - U2

1. Fan motor has been changed.

2. INVERTER P.C.BOARD has been changed.

3. EXPANSION VALVE has been changed.

4. 4-WAY VALVE has been changed.

MUZ-GL15NA - U1 MUZ-GL15NA - U2

MUZ-GL15NAH - U1 MUZ-GL15NAH - U2

MUY-GL15NA - U1 MUY-GL15NA - U2

1. Fan motor has been changed.

2. INVERTER P.C.BOARD has been changed.

3. EXPANSION VALVE has been changed.

OBH733G

MUZ-GL18NA MUZ-GL18NAH MUY-GL18NA

MUZ-GL24NA MUZ-GL24NAH MUY-GL24NA

Piping

Air outlet

Drain outlet

Air inlet

(back and side)

Drain hose

PART NAMES AND FUNCTIONS

MUZ-GL09NA MUZ-GL09NAH MUY-GL09NA

MUZ-GL12NA MUZ-GL12NAH MUY-GL12NA

MUZ-GL15NA MUZ-GL15NAH MUY-GL15NA

Air outlet

Drain outlet

Piping

Drain hose

Air inlet

(back and side)

OBH733G

3SPECIFICATION

Outdoor unit model MUZ- MUY- MUZ- MUY-

GL09NA- U1

GL09NAH-

U1 GL09NA- U2

GL09NAH-

U2 GL09NA- U8

GL09NAH-

GL09NA

- U1

GL09NA

- U2

GL12NA

GL12NAH GL12NA

Capacity

Rated (Minimum~Maximum)

Cooling 1Btu/h 9,000 (3,600 - 12,200)

12,000 (1,500 - 13,600)

Heating 47 1 (MUZ)Btu/h

10,900

(4,500 - 15,900) 10,900

(4,500 - 14,100)

14,400

(2,000 - 18,100)

Capacity

Rated (Maximum) Heating 17 2 (MUZ)Btu/h 6,700

(10,200) 7,000

(9,400)

9,200

(12,000)

Power consumption

Rated (Minimum~Maximum)

Cooling 1W 585 (240 - 1,050) 920 (100 - 1,300)

Heating 47 1 (MUZ)W720

(230 - 1,250)

720

(230 - 1,070)

1,100

(110 - 1,620)

Power consumption

Rated (Maximum) Heating 17 2 (MUZ)W630

(1,060) 620

(790)

870

(1,240)

EER 1 [SEER] 3Cooling 15.4 [24.6] 13.0 [23.1]

HSPF IV 4Heating (MUZ)NA: 12.8

NA: 12.5

NAH: 11.8

NAH: 11.5

COP Heating 1(MUZ)4.44

3.84

Power factor

Cooling (208/230)

% 86/86 92/92 87/87 86/86 95/95

Heating (MUZ) (208/230)

% 90/90 95/95

96/96

Power supply V , phase , Hz 208/230, 1 , 60

Max. fuse size (time delay) A 15

Min. circuit ampacity A 9 7 9 7

Fan motor F.L.A A 0.50

Compressor

Model

KNB073FRVMC KNB073FRXMC SNB092FQAMT KNB073FRVMC KNB073FRXMC

SNB092FQAMT

R.L.A A 6.2 4.9 6.6 4.9

L.R.A A 7.7 6.1 8.2 6.1

Refrigeration oil

ÀR]/0RGHO

9.1 (0.27)/(FV50S)

11.8 (0.35)/(FV50S)

9.1 (0.27)/(FV50S)

11.8 (0.35)/(FV50S)

Refrigerant control Linear expansion valve

Sound level 1Cooling dB(A) 48 49 49

Heating (MUZ)dB(A) 50

$LUÀRZ

High - Med. - Low Cooling CFM 1,102 - 639

Heating (MUZ)CFM

1,186 - 1,116 - 1,045

Fan speed

High - Med. - Low Cooling rpm 810 - 490

Heating (MUZ)rpm

870 - 820 - 770

Defrost method Reverse cycle

Reverse cycle

Dimensions W in. 31-1/2

D in. 11-1/4

H in. 21-5/8

Weight Ib. 81

([WHUQDO¿QLVK Munsell 3Y 7.8/1.1

Remote controller Wireless type

Control voltage

(by built-in transformer)

V DC 12 - 24

Refrigerant piping Not supplied

Refrigerant pipe size

(Min. wall thickness) Liquid in. 1/4 (0.0315)

Gas in. 3/8 (0.0315)

Connection method Indoor Flared

Outdoor Flared

Between the indoor

& outdoor units Height difference ft. 40

Piping length ft. 65

Refrigerant charge (R410A) 2 lb. 5 oz. 2 lb. 9 oz. 2 lb. 9 oz. 2 lb. 5 oz. 2 lb. 9 oz.

NOTE: Test conditions are based on AHRI 210/240.

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3: Test condition (Refer to page 6.)

4: Test condition (Refer to page 6.)

OBH733G

Outdoor unit model MUZ- MUY- MUZ- MUY- MUZ- MUY-

GL15NA

GL15NAH GL15NA GL18NA

GL18NAH GL18NA GL24NA

GL24NAH GL24NA

Capacity

Rated (Minimum~Maximum)

Cooling 1Btu/h

14,000 (3,100 - 18,200)

18,000 (5,800 ~ 22,000) 22,500 (8,200 ~ 31,400)

Heating 47 1 (MUZ)Btu/h 18,000

(4,800 - 20,900) -21,600

(5,400 ~ 25,000) -27,600

(7,500 ~ 36,900)

Capacity

Rated (Maximum) Heating 17 2 (MUZ)Btu/h 12,200

(16,400)

- 13,800 (18,200) - 16,000 (24,600)

Power consumption

Rated (Minimum~Maximum)

Cooling 1W 1,080 (210 - 2,000) 1,340 (330 ~ 2,150) 1,800 (570 ~ 3,580)

Heating 47 1 (MUZ)W1,600

(200 ~ 2,010)

1,680 (320 ~ 2,500) 2,340 (520 ~ 3,650)

Power consumption

Rated (Maximum) Heating 17 2 (MUZ)W1,190

(1,850)

1,480

(2,150)

1,770

(3,290)

EER 1 [SEER] 3 Cooling 13.0 [21.6] 13.4 [20.5] 12.5 [20.5]

HSPF IV 4Heating (MUZ)NA: 11.7

NA: 11.2

NA: 10.0

NAH: 10.8

NAH: 10.2

NAH: 10.0

COP Heating 1(MUZ)3.30

3.77

3.46

Power factor

Cooling (208/230)

% 97/97 99/99 99/99

Heating (MUZ) (208/230)

% 98/98 99/99

99/99

Power supply V , phase , Hz 208/230, 1 , 60

Max. fuse size (time delay) A 15 20

Min. circuit ampacity A 10 9 14 17.1

Fan motor F.L.A 0.50 0.93 0.93

Compressor

Model SNB130FQBMT SNB130FQBMT SNB172FQKMT

R.L.A A 7.4 6.8 10 12.9

L.R.A A 9.3 8.5 12.5 16.1

Refrigeration oil

ÀR]/0RGHO

11.8 (0.35)/(FV50S)

11.8 (0.35)/(FV50S) 11.8 (0.35)/(FV50S) 13.5 (0.40)/(FV50S)

Refrigerant control Linear expansion valve

Sound level 1Cooling dB(A) 49 49 54 55

Heating (MUZ)dB(A) 51

$LUÀRZ

High - Med. - Low COOL CFM 1,102-639 1,742 - 922 2,016 - 1,769 - 890

HEAT CFM

1,186 - 1,045 - 1,045

1,691 - 1,691 - 1,372

1,701 - 1,701 - 1,341

Fan speed

High - Med. - Low Cooling rpm 810 - 490 840 - 450 950 - 840 - 450

Heating (MUZ)rpm

870 - 770 - 770

810 - 810 - 650

Defrost method

Reverse cycle

Dimensions W in. 31-1/2 33-1/16

D in. 11-1/4 13

H in. 21-5/8 34-5/8

Weight Ib. 81 121 119

([WHUQDO¿QLVK Munsell 3Y 7.8/1.1

Remote controller Wireless type

Control voltage

(by built-in transformer)

V DC 12 - 24

Refrigerant piping Not supplied

Refrigerant pipe size

(Min. wall thickness) Liquid in. 1/4 (0.0315) 3/8 (0.0315)

Gas in. 1/2 (0.0315) 5/8 (0.0315)

Connection method Indoor Flared

Outdoor Flared

Between the indoor

& outdoor units Height difference ft. 40 50

Piping length ft. 65 100

Refrigerant charge (R410A) 2 lb. 9 oz. 3 lb. 9 oz. 4 lb. 3 oz.

NOTE: Test conditions are based on AHRI 210/240.

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3: Test condition (Refer to page 6.)

4: Test condition (Refer to page 6.)

OBH733G

Test condition

ARI Mode Test Indoor air condition (°F) Outdoor air condition (°F)

Dry bulb Wet bulb Dry bulb Wet bulb

SEER

(Cooling)

"A-2" Cooling Steady State

at rated compressor Speed 80 67 95 (75)

"B-2" Cooling Steady State

at rated compressor Speed 80 67 82 (65)

"B-1" Cooling Steady State

at minimum compressor Speed 80 67 82 (65)

"F-1" Cooling Steady State

at minimum compressor Speed 80 67 67 (53.5)

"E-V" Cooling Steady State

at intermediate compressor Speed 5 80 67 87 (69)

HSPF

(Heating)

"H1-2" Heating Steady State

at rated compressor Speed 70 60 47 43

"H3-2" Heating

at rated compressor Speed 70 60 17 15

"H0-1" Heating Steady State

at minimum compressor Speed 70 60 62 56.5

"H1-1" Heating Steady State

at minimum compressor Speed 70 60 47 43

"H2-V" Heating

at intermediate compressor Speed 5 70 60 35 33

NOTE:

5: At intermediate compressor Speed

= ("Rated compressor speed" - "minimum compressor speed") / 3 + "minimum compressor speed".

3, 4

(2) OPERATION

Mode Condition Intake air temperature (°F)

Indoor Outdoor

DB WB DB WB

Cooling

Standard temperature 80 67 95 —

Maximum temperature 90 73 115 —

Minimum temperature 67 57 14 —

Maximum humidity 78 % —

Heating Standard temperature 70 60 47 43

Maximum temperature 80 67 75 65

Minimum temperature 70 60 -4 -5

OPERATING RANGE

(1) POWER SUPPLY

Rated voltage Guaranteed voltage (V)

Outdoor unit 208/230 V

1 phase

60 Hz

Min. 187 208 230 Max. 253

OBH733G

OUTLINES AND DIMENSIONS

clear *1

*1 4 in. (100 mm) or more when

front and sides of the unit are clear

*2 When any 2 sides of left, right

and rear of the unit are clear

holes

(GL09/12/15NA)

(GL09/12/15NAH)

REQUIRED SPACE

Liquid refrigerant pipe joint

Refrigerant pipe (flared) Ø 1/4

Gas refrigerant pipe joint

Refrigerant pipe (flared) Ø 3/8 (GL09/12)

Ø 1/2 (GL15)

4 in. (100 mm)

or more

14 in. (350 mm)

or more

8 in. (200 mm)

or more *2

4 in. (100 mm)

or more

Unit: inch

MUZ-GL09NA MUZ-GL09NAH MUY-GL09NA

MUZ-GL12NA MUZ-GL12NAH MUY-GL12NA

MUZ-GL15NA MUZ-GL15NAH MUY-GL15NA

OBH733G

Unit: inch

16-7/16

1-9/16

1-5/8

Drain hole

6-7/8 19-11/16

Air in

Air out 2-holes 13/32 13/16

14-3/16

33-1/16

4-5/16 3-3/16

34-5/8

17-25/32

Service panel

3-29/32

6-1/2

7-11/16

Liquid refrigerant pipe joint

Refrigerant pipe (flared) Ø 1/4 (GL18)

Refrigerant pipe (flared) Ø 3/8 (GL24)

Gas refrigerant pipe joint

Refrigerant pipe (flared) Ø 1/2 (GL18)

Refrigerant pipe (flared) Ø 5/8 (GL24)

*1 20 in. (500 mm) or more when front

and sides of the unit are clear

14 in. (350 mm)

or more

4 in. (100 mm)

or more

REQUIRED SPACE

Clear *1

4 in. (100 mm)

or more

20 in. (500 mm)

or more *2

*2 When any 2 sides of left, right

and rear of the unit are clear

MUZ-GL18NA MUZ-GL18NAH MUY-GL18NA

MUZ-GL24NA MUZ-GL24NAH MUY-GL24NA

OBH733G

5WIRING DIAGRAM

MUZ-GL09NA-

U8 MUZ-GL12NA-

MUZ-GL09NA-

U2 MUZ-GL12NA-

OBH733G

MUZ-GL09NAH-

U2 MUZ-GL12NAH-

MUZ-GL09NAH-

U8 MUZ-GL12NAH-

OBH733G

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