Mitsubishi Electric MUZ-GS09NA User manual

PARTS CATALOG (OBB875)
CONTENTS
1. TECHNICAL CHANGES ······························2
2. PART NAMES AND FUNCTIONS··················3
3. SPECIFICATION ········································4
4. OUTLINES AND DIMENSIONS···················10
5. WIRING DIAGRAM···································12
6. REFRIGERANT SYSTEM DIAGRAM ···········21
7. DATA······················································26
8. ACTUATOR CONTROL ·····························57
9. SERVICE FUNCTIONS······························58
10. TROUBLESHOOTING·······························59
11. DISASSEMBLY INSTRUCTIONS·················87
HFC
utilized
R410A
OUTDOOR UNIT
SERVICE MANUAL No. OBH875
REVISED EDITION-B
Indoor unit service manual
MSZ-GS•NA, MSY-GS•NA Series (OBH874)
OBH875 REVISED EDITION-A is void.
Revision B:
• MUZ-GS09/12/15/18/24NA - U1 ,
MUZ-GS09/12/15/18/24NAH - U1 ,
MUZ-GS09/12/15/18/24NAHZ - U1 ,
MUY-GS09/12/15/18/24NA - U1 ,
MUZ-GS30/36NA2 - U1 , MUZ-GS30/36NAH2 - U1
and MUY-GS30/36NA2 - U1 have been added.
MUZ-GS18/24/30/36NA MUZ-GS18/24/30/36NAH
MUZ-GS18/24NAHZ MUY-GS18/24/30/36NA
MUZ-GS30/36NA2 MUZ-GS30/36NAH2
MUY-GS30/36NA2
Models
MUZ-GS09NA-U1 MUZ-GS18NAH-U1 MUY-GS09NA-U1
MUZ-GS12NA-U1 MUZ-GS24NAH-U1 MUY-GS12NA-U1
MUZ-GS15NA-U1 MUZ-GS30NAH-U1 MUY-GS15NA-U1
MUZ-GS18NA-U1 MUZ-GS30NAH2-U1 MUY-GS18NA-U1
MUZ-GS24NA-U1 MUZ-GS36NAH-U1 MUY-GS24NA-U1
MUZ-GS30NA-U1 MUZ-GS36NAH2-U1 MUY-GS30NA-U1
MUZ-GS30NA2-U1 MUZ-GS09NAHZ-U1 MUY-GS30NA2-U1
MUZ-GS36NA-U1 MUZ-GS12NAHZ-U1 MUY-GS36NA-U1
MUZ-GS36NA2-U1 MUZ-GS15NAHZ-U1 MUY-GS36NA2-U1
MUZ-GS09NAH-U1 MUZ-GS18NAHZ-U1
MUZ-GS12NAH-U1 MUZ-GS24NAHZ-U1
MUZ-GS15NAH-U1

2
1 TECHNICAL CHANGES
Revision A:
• A warning when opening or closing the valve has been added.
MUZ-GS30NA - U1 MUZ-GS30NAH - U1
MUZ-GS36NA - U1 MUZ-GS36NAH - U1
MUY-GS30NA - U1
MUY-GS36NA - U1
1. New model
MUZ-GS09NA - U1 MUZ-GS09NAH - U1 MUZ-GS09NAHZ - U1
MUZ-GS12NA - U1 MUZ-GS12NAH - U1 MUZ-GS12NAHZ - U1
MUZ-GS15NA - U1 MUZ-GS15NAH - U1 MUZ-GS15NAHZ - U1
MUZ-GS18NA - U1 MUZ-GS18NAH - U1 MUZ-GS18NAHZ - U1
MUZ-GS24NA - U1 MUZ-GS24NAH - U1 MUZ-GS24NAHZ - U1
MUY-GS09NA - U1
MUY-GS12NA - U1
MUY-GS15NA - U1
MUY-GS18NA - U1
MUY-GS24NA - U1
1. New model
MUZ-GS30NA2 - U1 MUZ-GS30NAH2 - U1
MUZ-GS36NA2 - U1 MUZ-GS36NAH2 - U1
MUY-GS30NA2 - U1
MUY-GS36NA2 - U1
1.Compressor protector has been added.
Revision B:
• MUZ-GS09/12/15/18/24NA - U1 , MUZ-GS09/12/15/18/24NAH - U1 , MUZ-GS09/12/15/18/24NAHZ - U1 ,
MUY-GS09/12/15/18/24NA - U1 , MUZ-GS30/36NA2 - U1 , MUZ-GS30/36NAH2 - U1 and MUY-GS30/36NA2 - U1
have been added.
Use the specied refrigerant only
Never use any refrigerant other than that specified.
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.
<Preparation before the repair service>
Prepare the proper tools.
Prepare the proper protectors.
Provide adequate ventilation.
After stopping the operation of the air conditioner, turn off the power-supply breaker and pull the power plug.
Discharge the capacitor before the work involving the electric parts.
<Precautions during the repair service>
Do not perform the work involving the electric parts with wet hands.
Do not pour water into the electric parts.
Do not touch the refrigerant.
Do not touch the hot or cold areas in the refrigeration cycle.
When the repair or the inspection of the circuit needs to be done without turning off the power, exercise great caution not to
touch the live parts.
WARNING
• When the refrigeration circuit has a leak, do not execute pump down with the compressor.
• When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.
The compressor may burst if air etc. get into it.
• When opening or closing the valve below freezing temperatures, refrigerant may spurt out from the gap
between the valve stem and the valve body, resulting in injuries.
OBH875B

3
PART NAMES AND FUNCTIONS2
MUZ-GS18NA MUZ-GS18NAH MUZ-GS18NAHZ MUY-GS18NA
MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA
MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA
MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2
MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA
MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2
Air outlet
Drain outlet
Piping
Drain hose
Air inlet
(back and side)
MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA
MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA
MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA
Air outlet
Drain outlet
Piping
Drain hose
Air inlet
(back and side)
OBH875B

4
3 SPECIFICATION
Outdoor unit model MUZ-GS09NA MUZ-GS09NAH
MUY-GS09NA MUZ-GS09NAHZ
Capacity
Rated (Minimum – Maximum) Cooling *1Btu/h 9,000 (3,600 – 12,200)
Heating 47 *1Btu/h 10,900 (3,600 – 15,900) 9,600 (3,600 – 15,900)
Capacity
Rated (Maximum) Heating 17 *2Btu/h 6,500 (10,200) 5,700 (11,500)
Power consumption
Rated (Minimum – Maximum) Cooling *1W 585 (240 – 1,050)
Heating 47 *1W 720 (230 – 1,740) 580 (230 – 1,750)
Power consumption
Rated (Maximum) Heating 17 *2W 730 (1,230) 650 (1,410)
EER2 *1[SEER2] *3Cooling 15.4 [28.4]
HSPF2 *4Heating NA: 10.9 –
NAH: 10.2 9.6
COP Heating *14.44 4.85
Power factor Cooling % 90
Heating % 92 90
Power supply V , phase , Hz 208/230, 1 , 60
Max. fuse size (time delay) A 15
Min. circuit ampacity A 10
Fan motor A 0.5
Compressor
Model SNB092FQAMT
R.L.A A 6.7
L.R.A A 8.4
Refrigeration oil  oz. (L)
(Model) 11.8 (0.35)/(FV50S)
Refrigerant control Linear expansion valve
Sound level *1Cooling dB(A) 48
Heating dB(A) 50
Airow
High - Med. - Low Cooling CFM 1,152 – 1,152 – 584
Heating CFM 1,139 – 1,097 – 753
Fan speed
High - Med. - Low Cooling rpm 900 – 900 – 490
Heating rpm 890 – 860 – 610
Defrost method Reverse cycle (MUZ only)
Dimensions W in. 31-1/2 D in. 11-1/4
H in. 21-5/8
Weight Ib. NA: 79
NAH: 81 81
External nish 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 di󰀨erence ft. 40
Piping length ft. 65
Refrigerant charge (R410A) 2lbs. 9oz
NOTE: Test conditions are based on AHRI 210/240.
*1: Rating conditions (Cooling) — Indoor: 80˚FDB, 67˚FWB, Outdoor: 95˚FDB, (75˚FWB)
(Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 47˚FDB, 43˚FWB
*2: Rating conditions (Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 17˚FDB, 15˚FWB
*3: Test condition (Refer to page 9.)
*4: Test condition (Refer to page 9.)
OBH875B

5
Outdoor unit model MUZ-GS12NA MUZ-GS12NAH
MUY-GS12NA MUZ-GS12NAHZ MUZ-GS15NA
MUZ-GS15NAH
MUY-GS15NA MUZ-GS15NAHZ
Capacity
Rated (Minimum – Maximum)
Cooling *1Btu/h 12,000 (1,500 – 13,600) 14,000 (3,100 – 18,200)
Heating 47 *1Btu/h 14,400
(1,500 – 18,100) 12,300 (3,600 – 18,100) 18,000 (4,800 – 20,900) 14,000 (4,800 – 20,900)
Capacity
Rated (Maximum) Heating 17 *2Btu/h 9,000 (12,000) 7,600 (14,700) 12,100 (16,400) 8,700 (16,800)
Power consumption
Rated (Minimum – Maximum) Cooling *1W 920 (100 – 1,450) 1,100 (210 – 2,020)
Heating 47 *1W 1,100 (110 – 1,750) 830 (240 – 2,020) 1,600 (240 – 2,030) 1,140 (240 – 2,030)
Power consumption
Rated (Maximum) Heating 17 *2W 1,000 (1,670) 820 (1,820) 1,330 (2,020) 950 (2,020)
EER2 *1[SEER2] *3Cooling 13.05 [25.6] 13.05 [21.7] 12.75 [21.0]
HSPF2 *4Heating NA: 10.7 – 11.0 –
NAH: 10.0 9.6 10.4 9.4
COP Heating *13.84 4.34 3.3 3.6
Power factor Cooling % 95 93
Heating % 97 90 96 95
Power supply V , phase , Hz 208/230, 1 , 60
Max. fuse size (time delay) A 15
Min. circuit ampacity A 10
Fan motor A 0.5
Compressor
Model SNB092FQAMT SNB140FQUMT
R.L.A A 6.7 7.4
L.R.A A 8.4 9.2
Refrigeration oil  oz. (L)
(Model) 11.8 (0.35)/(FV50S)
Refrigerant control Linear expansion valve
Sound level *1Cooling dB(A) 49
Heating dB(A) 51
Airow
High - Med. - Low Cooling CFM 1,152 – 1,152 – 584 1,166 – 1,152 – 584 1,166 – 1,166 – 584
Heating CFM 1,139 – 1,097 – 753 1,139 – 1,097 – 753 1,152 – 1,152 – 753
Fan speed
High - Med. - Low Cooling rpm 900 – 900 – 490 910 – 900 – 490 910 – 910 – 490
Heating rpm 890 – 860 – 610 900 – 860 – 610 900 – 900 – 610
Defrost method Reverse cycle (MUZ only)
Dimensions W in. 31-1/2 D in. 11-1/4
H in. 21-5/8
Weight Ib. NA: 79
NAH: 81 85 NA: 84 NAH: 85 85
External nish 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) 1/2 (0.0315)
Connection method Indoor Flared
Outdoor Flared
Between the indoor &
outdoor units Height di󰀨erence ft. 40
Piping length ft. 65
Refrigerant charge (R410A) 2lbs. 9oz
NOTE: Test conditions are based on AHRI 210/240.
*1: Rating conditions (Cooling) — Indoor: 80˚FDB, 67˚FWB, Outdoor: 95˚FDB, (75˚FWB)
(Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 47˚FDB, 43˚FWB
*2: Rating conditions (Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 17˚FDB, 15˚FWB
*3: Test condition (Refer to page 9.)
*4: Test condition (Refer to page 9.)
OBH875B

6
Outdoor unit model MUZ-GS18NA MUZ-GS18NAH
MUY-GS18NA MUZ-GS18NAHZ MUZ-GS24NA
MUZ-GS24NAH
MUY-GS24NA MUZ-GS24NAHZ
Capacity
Rated (Minimum – Maximum)
Cooling *1Btu/h 18,000 (5,800 – 22,000) 22,400 (8,200 – 31,400)
Heating 47 *1Btu/h NA:21,600
NAH:20,600
(5,400 – 25,000)
19,000
(6,600 – 25,000) 27,600 (7,500 – 31,400) 21,200 (7,500 – 31,400)
Capacity
Rated (Maximum) Heating 17 *2Btu/h 13,300 (18,200) 11,700 (22,400) 17,600 (24,600) 13,300 (25,400)
Power consumption
Rated (Minimum – Maximum) Cooling *1W 1,340 (330 – 2,150) 1,780 (570 – 4,000)
Heating 47 *1W 1,680 (320 – 2,500) 1,340 (400 – 4,000) 2,340 (520 – 4,050) 1,540 (520 – 4,050)
Power consumption
Rated (Maximum) Heating 17 *2W 1,460 (2,080) 1,230 (3,570) 1,930 (2,950) 1,400 (3,350)
EER2 *1[SEER2] *3Cooling 13.45 [21.5] 12.6 [21.5]
HSPF2 *4Heating NA: 10.3 – 10.3 –
NAH: 10.0 9.6 10.1 9.0
COP Heating *13.77 4.16 3.46 4.03
Power factor Cooling % 97 98 99
Heating % 97 98 95 98
Power supply V , phase , Hz 208/230, 1 , 60
Max. fuse size (time delay) A 15 20
Min. circuit ampacity A 12 18
Fan motor A 0.93
Compressor
Model SNB130FQBMT SNB172FQKMT
R.L.A A 8.4 13.6
L.R.A A 10.5 17
Refrigeration oil  oz. (L)
(Model) 11.8 (0.35)/(FV50S) 13.5 (0.40)/(FV50S)
Refrigerant control Linear expansion valve
Sound level *1Cooling dB(A) 54 55
Heating dB(A) 55
Airow
High - Med. - Low Cooling CFM
2,662 – 1,947 – 1,334 2,191 – 1,800 – 1,024 2,191 – 1,950 – 1,034
Heating CFM
2,187 – 1,732 – 1,251 1,950 – 1,646 – 1,219 1,950 – 1,950 – 1,328
Fan speed
High - Med. - Low Cooling rpm 900 – 740 – 550 900 – 740 – 450 900 – 800 – 450
Heating rpm 800 – 680 – 520 800 – 680 – 520 800 – 800 – 560
Defrost method Reverse cycle (MUZ only)
Dimensions W in. 33-1/16 D in. 13
H in. 34-5/8
Weight Ib. NA: 119
NAH: 120 118 NA: 118 NAH: 120 120
External nish 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. 1/2 (0.0315) 5/8 (0.0394)
Connection method Indoor Flared
Outdoor Flared
Between the indoor &
outdoor units Height di󰀨erence ft. 50
Piping length ft. 100
Refrigerant charge (R410A) 3lbs. 7oz 4lbs. 5oz
NOTE: Test conditions are based on AHRI 210/240.
*1: Rating conditions (Cooling) — Indoor: 80˚FDB, 67˚FWB, Outdoor: 95˚FDB, (75˚FWB)
(Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 47˚FDB, 43˚FWB
*2: Rating conditions (Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 17˚FDB, 15˚FWB
*3: Test condition (Refer to page 9.)
*4: Test condition (Refer to page 9.)
OBH875B

7
Outdoor unit model MUZ-GS30NA
MUZ-GS30NAH MUY-GS30NA MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA
Capacity
Rated (Minimum – Maximum)
Cooling *1Btu/h 30,700 (10,300 – 30,700) 32,000/33,200
(10,300 – 32,000)/(10,300 – 33,200)
Heating 47 *1Btu/h 32,600
(9,800 – 34,000) –35,200 (9,800 – 36,000) –
Capacity
Rated (Maximum) Heating 17 *2Btu/h 20,000 (20,800) – 21,600 (22,800) –
Power consumption
Rated (Minimum – Maximum)
Cooling *1W3,320
(650 – 3,320) 3,630/3,770 (650 – 3,630)/(650 – 3,770)
Heating 47 *1W3,340
(590 – 3,580) –3,740 (590 – 4,000) –
Power consumption
Rated (Maximum) Heating 17 *2W 2,500 (2,600) – 2,770 (2,920) –
EER *1[SEER] *3Cooling 9.2 [18.1] 8.8 [16.2]
HSPF IV *4Heating NA: 9.6 – 10 –
NAH: 9.4 – 9.8 –
COP Heating *12.86 – 2.76 –
Power supply V , phase , Hz 208/230, 1 , 60
Max. fuse size (time delay) A 20
Min. circuit ampacity A 19
Fan motor F.L.A A 0.93
Compressor
Model SNB220FQAM1T
R.L.A A 13.8
L.R.A A 17.3
Refrigeration oil
 oz. (L)/
(Model)
15.6 (0.46)/(FV50S)
Refrigerant control Linear expansion valve
Sound level *1Cooling dB(A) 55 56
Heating dB(A) 57 – 57 –
Defrost method Reverse cycle
Dimensions W in. 33-1/16 D in. 13
H in. 34-5/8
Weight Ib. NA: 121
NAH: 122
External nish 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. 5/8 (0.0394)
Connection method Indoor Flared
Outdoor Flared
Between the indoor &
outdoor units Height di󰀨erence ft. 50
Piping length ft. 100
Refrigerant charge (R410A) 4 lb.
NOTE: Test conditions are based on AHRI 210/240.
*1: Rating conditions (Cooling) — Indoor: 80˚FDB, 67˚FWB, Outdoor: 95˚FDB, (75˚FWB)
(Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 47˚FDB, 43˚FWB
*2: Rating conditions (Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 17˚FDB, 15˚FWB
*3: Test condition (Refer to page 9.)
*4: Test condition (Refer to page 9.)
OBH875B

8
Outdoor unit model MUZ-GS30NA2
MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2
Capacity
Rated (Minimum – Maximum)
Cooling *1Btu/h 30,600(10,300-30,700) 33,200 (10,300 – 33,200)
Heating 47 *1Btu/h 32,600
(9,800 – 34,000) –35,200 (9,800 – 36,000) –
Capacity
Rated (Maximum) Heating 17 *2Btu/h 20,000 (20,800) – 21,600 (22,800) –
Power consumption
Rated (Minimum – Maximum) Cooling *1W 3,320 (650 – 3,320) 3,770 (650 – 3,770)
Heating 47 *1W 3,340 (590 – 3,580) – 3,740 (590 – 4,000) –
Power consumption
Rated (Maximum) Heating 17 *2W 2,500 (2,600) – 2,770 (2,920) –
EER2 *1[SEER2] *3Cooling 9.2 [19.1] 9.2 [19.2] 8.8 [18.4] 8.8 [18.5]
HSPF2 *4Heating NA: 8.9 – 8.5 –
NAH: 8.7 – 8.3 –
COP Heating *12.86 – 2.76 –
Power factor Cooling 98 98 98 98
Heating 98 – 99 –
Power supply V , phase , Hz 208/230, 1 , 60
Max. fuse size (time delay) A 25
Min. circuit ampacity A NA: 22
NAH: 23
Fan motor F.L.A A 0.93
Compressor
Model SNB220FQAM1T
R.L.A A 13.8
L.R.A A 17.3
Refrigeration oil
 oz. (L)/
(Model)
15.6 (0.46)/(FV50S)
Refrigerant control Linear expansion valve
Sound level *1Cooling dB(A) 55 56
Heating dB(A) 57 – 57 –
Airow
High - Med. - Low Cooling CFM
2,191 – 1,975 – 1,024 2,229 – 1,990 – 1,010 2,191 – 2,191 – 1,024 2,229 – 2,070 – 1,010
Heating CFM 1,950 – 1,950 – 1,328 – 1,950 – 1,950 – 1,328 –
Fan speed
High - Med. - Low Cooling rpm 900 – 810 – 450 900 – 810 – 450 900 – 900 – 450 900 – 840 – 450
Heating rpm 800 – 800 – 560 – 800 – 800 – 560 –
Defrost method Reverse cycle
Dimensions W in. 33 - 1/16 D in. 13
H in. 34 - 5/8
Weight Ib. NA: 122
NAH: 123 112 NA: 122 NAH: 123 112
External nish 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. 5/8 (0.0394)
Connection method Indoor Flared
Outdoor Flared
Between the indoor &
outdoor units Height di󰀨erence ft. 50
Piping length ft. 100
Refrigerant charge (R410A) 4lb. 5oz
NOTE: Test conditions are based on AHRI 210/240.
*1: Rating conditions (Cooling) — Indoor: 80˚FDB, 67˚FWB, Outdoor: 95˚FDB, (75˚FWB)
(Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 47˚FDB, 43˚FWB
*2: Rating conditions (Heating) — Indoor: 70˚FDB, 60˚FWB, Outdoor: 17˚FDB, 15˚FWB
*3: Test condition (Refer to page 9.)
*4: Test condition (Refer to page 9.)
OBH875B

9
Test condition
AHRI
210/240 Mode Test Indoor air condition (°F) Outdoor air condition (°F)
Dry bulb Wet bulb Dry bulb Wet bulb
SEER
(Cooling)
“A-Full” Cooling Steady State
at rated compressor speed 80 67 95 (75)
“B-Full” Cooling Steady State
at rated compressor speed 80 67 82 (65)
“B-Low” Cooling Steady State
at minimum compressor speed 80 67 82 (65)
“F-Low” Cooling Steady State
at minimum compressor speed 80 67 67 (53.5)
“E-Int” Cooling Steady State
at intermediate compressor speed *580 67 87 (69)
HSPF
(Heating)
“H1-Nom” Heating Steady State
at rated compressor speed 70 60 47 43
“H3-Full” Heating
at rated compressor speed 70 60 17 15
“H0-Low” Heating Steady State
at minimum compressor speed 70 60 62 56.5
“H1-Low” Heating Steady State
at minimum compressor speed 70 60 47 43
“H2-Int” Heating
at intermediate compressor speed *570 60 35 33
*5: At intermediate compressor speed
= (“Rated compressor speed” - “minimum compressor speed”) / 3 + “minimum compressor speed”.
*3, *4
OPERATING RANGE
(1) POWER SUPPLYRated voltage Guaranteed voltage (V)
Outdoor unit 208/230 V 1 phase
60 Hz
Min. 187 208 230 Max. 253
(2) OPERATION
Mode Condition Intake air temperature (°F) Outdoor
DB WB
Cooling
Standard temperature 95 —
Maximum temperature 115 —
Minimum temperature 14 —
Maximum humidity —
Heating
Standard temperature 47 43
Maximum temperature 75 65
Minimum temperature NA, NAH: -4
NAHZ: -13 NA, NAH: -5 NAHZ: -14
OBH875B

10
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
(GS09/12/15NA)
(GS09/12/15NAH, GS09/12/15NAHZ)
REQUIRED SPACE
Liquid refrigerant pipe joint
Refrigerant pipe (flared) Ø 1/4
Gas refrigerant pipe joint
Refrigerant pipe (flared) Ø 3/8 (GS09/12)
Ø 1/2 (GS15)
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
4OUTLINES AND DIMENSIONS
Unit: inch
MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA
MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA
MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA
OBH875B

11
13
2
16-7/16
1-9/16
13-3/4
14-5/8
15-3/8
11/16
OVAL HOLES 2×3/8×13/16
→
AIR IN
↓
AIR IN
↓AIR OUT
BOLT PITCH FOR INSTALLATION
DRAIN HOLE ø1-21/32
13
34-5/8
17-25/32
5/16
6-7/8 19-11/16
33-1/16 3-3/16
HANDLE
3-29/32
6-1/2
43
35
7-11/16
19/32
GAS REFRIGERANT
PIPE JOINT
LIQUID
REFRIGERANT
PIPE JOINT
SERVICE PANEL
VALVE COVER
SERVICE PORT
4 in OR MORE.
BASICALLY OPEN 20 in OR MORE WITHOUT ANY OBSTRUCTION IN FRONTAND BOTH SIDES OF THE UNIT.
14 in OR MORE.
20 in OR MORE.
OPEN TWO SIDES OF RIGHT
OR REAR SIDE. 4 in OR MORE.
GS18: FLARED ø12.7 (1/2”)
GS24/30/36: FLARED ø15.88 (5/8”)
FLARED ø6.35 (1/4”)
REQUIRED SPACE
MUZ-GS18NA MUZ-GS18NAH MUZ-GS18NAHZ MUY-GS18NA
MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA
MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA
MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2
MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA
MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 Unit: inch
OBH875B

12
5 WIRING DIAGRAM
MUZ-GS09NA MUZ-GS12NA MUZ-GS15NA
OBH875B

13
MUZ-GS09NAH MUZ-GS09NAHZ MUZ-GS12NAH MUZ-GS12NAHZ
MUZ-GS15NAH MUZ-GS15NAHZ
OBH875B

14
MUY-GS09NA MUY-GS12NA MUY-GS15NA
OBH875B

15
MUZ-GS18NA
MUZ-GS18NAH
OBH875B

16
MUY-GS18NA
MUZ-GS18NAHZ MUZ-GS24NAH MUZ-GS24NAHZ
OBH875B

17
MUZ-GS24NA
MUY-GS24NA
OBH875B

18
MUZ-GS30NA MUZ-GS36NA
MUZ-GS30NAH MUZ-GS36NAH
OBH875B

19
MUY-GS30NA MUY-GS36NA
MUZ-GS30NA2 MUZ-GS36NA2
OBH875B

20
MUY-GS30NA2 MUY-GS36NA2
MUZ-GS30NAH2 MUZ-GS36NAH2
OBH875B