Midea MCA-12HRN1 User Manual Download Page 125

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MCAC-UTSM-2008-11

Troubleshooting

Outdoor Units

123

d. Protection of pressure or temp.

e. Open-circuit and short-circuit trouble of T3

Protection of pressure or temp.

Is it k1 or K2 open ?

Is temp. protective switch K1 open

Possible reason

1. The wires is loose to K1

2. Air or other gas in the refrigerant.

3. Heat exchanger is dirty

4. Outdoor fan or fan blade is defective

5. Outdoor unit is bad ventilation

6. Refrigerant is leakage

7. K1 switch is defective

Is pressure protective switch K

open

Yes

Possible reason

1. The wires is loose to K2

2. Air or other gas in the refrigerant.

3. Heat exchanger is dirty

4. Outdoor fan or fan blade is defective

5. Outdoor unit is bad ventilation

6. Refrigerant is two much

7. K2 switch is defective

Is connection to connector of temp. sensor good?

Check the resistance of the temp. sensor according to Annex 1

Repair connector

Yes

Is it the resistance is normal?

Indoor PCB is defective.

Replace the sensor

Yes

Summary of Contents for MCA-12HRN1

Page 1: ...i Part 1 General Information 1 Part 2 Indoor Units 7 Part 3 Outdoor Units 88 Part 4 Installation 127 Part 5 Control 136 The specifications designs and information in this book are subject to change wi...

Page 2: ......

Page 3: ...2008 11 General Information General Information 1 Part 1 General Information 1 Model Names of Indoor Outdoor Units 2 2 External Appearance 3 2 1 Indoor Units 3 2 2 Outdoor Units 4 3 Nomenclature 5 4 F...

Page 4: ...8HN1 220 240 1 50 ROTARY MIDEA TOSHIBA MCA 18HRN1 MUB 18HRN1 MOUA 24HN1 220 240 1 50 ROTARY MIDEA TOSHIBA MCC 24HRN1 MUB 24HRN1 MOU 30HN1 220 240 1 50 SCROLL SANYO MCC 30HRN1 MUB 30HRN1 MOU 30HN1 R 38...

Page 5: ...MCAC UTSM 2008 11 External Appearance General Information 3 2 External Appearance 2 1 Indoor Units Four way cassette type compact Four way cassette type Ceiling floor type Ceiling floor type...

Page 6: ...External Appearance MCAC UTSM 2008 11 4 General Information 2 2 Outdoor Units 12 000Btu h 18 000Btu h 24 000Btu h 30 000 36 000Btu h 48 000Btu h 60 000Btu h...

Page 7: ...eating Capacity 1000Btu h Product Series A Time A Designed B Time B Designed C Time C Designed Indoor Unit Type T Duct H High Static Pressure Duct C Cassette U Ceiling Floor Midea 3 2 Outdoor Unit Pow...

Page 8: ...lt spray test 3 Low operation sound level Well known stable and quiet running fan motor 4 Well known compressor 5 Compact design Smaller dimension and larger stuffing capacity 6 Universal outdoor unit...

Page 9: ...MCAC UTSM 2008 11 Indoor Units Indoor Units 7 Part 2 Indoor Units Four way Cassette Type Compact 8 Four way Cassette Type 21 Ceiling Floor Type 53...

Page 10: ...1 Features 9 2 Specifications 10 3 Dimensions 11 4 Service Space 11 5 Wiring Diagram 12 6 Air Velocity and Temperature Distributions 13 7 Capacity Tables 14 8 Electric Characteristics 16 9 Sound Level...

Page 11: ...adoption of the most advanced 3 Dimensional Screw Fan Reduces the air resistance passing through Smoothes the air flow Makes air speed distribution to the heat exchange uniform 4 Improvement for easy...

Page 12: ...35 42 5 39 4 35 8 Indoor unit Dimension W H D body mm 580 254 580 580 254 580 Packing W H D body mm 750 340 745 750 340 745 Dimension W H D panel mm 650 30 650 650 30 650 Packing W H D panel mm 715 11...

Page 13: ...MCAC UTSM 2008 11 Dimensions Indoor Units 11 3 Dimensions 4 Service Space...

Page 14: ...Wiring Diagram MCAC UTSM 2008 11 12 Indoor Units 5 Wiring Diagram...

Page 15: ...MCAC UTSM 2008 11 Air Velocity and Temperature Distributions Indoor Units 13 6 Air Velocity and Temperature Distributions Airflowvelocity Temperature...

Page 16: ...3 20 2 98 SC 2 56 2 54 2 50 2 44 Input 0 99 1 05 1 10 1 16 32 23 C DB WB TC 3 52 3 39 3 33 3 07 SC 2 99 2 95 2 93 2 86 Input 1 03 1 08 1 16 1 20 MCA 18HRN1 Cooling Outdoor conditions DB Indoor Conditi...

Page 17: ...4 4 00 3 24 3 04 Input 1 24 1 05 0 92 0 85 27 C TC 4 72 3 76 3 04 2 96 Input 1 31 1 13 1 00 0 92 MCA 18HRN1 Heating Outdoor conditions Indoor Conditions DB kW 24 18 C DB WB 7 6 C DB WB 2 1 C DB WB 5 6...

Page 18: ...x MCA MFA kW FLA MCA 12HRN1 50 220 240V 198V 254V 0 33 25 0 045 0 264 MCA 18HRN1 50 220 240V 198V 254V 0 33 25 0 045 0 264 Remark MCA Min Current Amps A MFA Max Fuse Amps A KW Fan Motor Rated Output k...

Page 19: ...14 Right clapboard ass y 1 5 Motor 1 15 Partition board 1 6 Motor base 1 16 Evaporator fixing board ass y 1 7 Base ass y 1 17 Evaporator ass y 1 8 Board 1 18 Evaporator temp sensor ass y 1 9 Sealed b...

Page 20: ...emote controller holder 1 10 Mounting screw ST2 9 10 C H 2 11 Alkaline dry batteries AM4 2 Others 12 Owner s manual 1 13 Installation manual 1 12 The Specification of Power Type MCA 12HRN1 MCA 18HRN1...

Page 21: ...MCAC UTSM 2008 11 Field Wiring Indoor Units 19 13 Field Wiring MCA 12HRN1...

Page 22: ...Field Wiring MCAC UTSM 2008 11 20 Indoor Units MCA 18HRN1...

Page 23: ...es 22 2 Specifications 24 3 Dimensions 27 4 Service Space 28 5 Wiring Diagrams 29 6 Air Velocity and Temperature Distributions 31 7 Capacity Tables 32 8 Electric Characteristics 38 9 Sound Levels 38 1...

Page 24: ...louver are 40 42 degrees and the second louver are 37 38 degrees 4 4 speeds available optional super high fan speed design suitable for the large building over 3m high 5 Adding digital tube displaying...

Page 25: ...Features Indoor Units 23 7 Stylish design is harmonious with any interior decoration and creates and elegant environment 8 Built in water pump with 750mm pumping head 9 Fresh air makes life more healt...

Page 26: ...ure dB A 48 44 40 50 46 42 Indoor unit Dimension W H D body mm 840 230 840 840 300 840 Packing W H D body mm 955 247 955 955 317 955 Dimension W H D panel mm 950 55 950 950 55 950 Packing W H D panel...

Page 27: ...pressure dB A 50 46 42 50 46 42 Indoor unit Dimension W H D body mm 840 300 840 840 300 840 Packing W H D body mm 955 317 955 955 317 955 Dimension W H D panel mm 950 55 950 950 55 950 Packing W H D...

Page 28: ...e level sound pressure dB A 50 46 42 50 46 42 Indoor unit Dimension W H D body mm 840 300 840 840 300 840 Packing W H D body mm 955 317 955 955 317 955 Dimension W H D panel mm 950 55 950 950 55 950 P...

Page 29: ...MCAC UTSM 2008 11 Dimensions Indoor Units 27 3 Dimensions 3 1 MCC 24HRN1 3 2 MCC 30HRN1 MCC 30HRN1 R MCC 36HRN1 MCC 36HRN1 R MCC 48HRN1 R...

Page 30: ...ugh room for installation and maintenance The ceiling is horizontal and its structure can endure the weight of the indoor unit The outlet and the inlet are not impeded and the influence of external ai...

Page 31: ...MCAC UTSM 2008 11 Wiring Diagrams Indoor Units 29 5 Wiring Diagrams 5 1 MCC 24HRN1 MCC 30HRN1 MCC 36HRN1...

Page 32: ...Wiring Diagrams MCAC UTSM 2008 11 30 Indoor Units 5 2 MCC 30HRN1 R MCC 36HRN1 R MCC 48HRN1 R...

Page 33: ...MCAC UTSM 2008 11 Air Velocity and Temperature Distributions Indoor Units 31 6 Air Velocity and Temperature Distributions Airflowvelocity Temperature...

Page 34: ...2 78 27 19 C DB WB TC 7 67 7 31 7 10 6 60 SC 5 67 5 63 5 54 5 41 Input 2 43 2 57 2 70 2 84 32 23 C DB WB TC 7 81 7 53 7 38 6 82 SC 6 64 6 55 6 50 6 34 Input 2 54 2 65 2 84 2 94 Heating Heating Outdoor...

Page 35: ...C DB WB TC 9 72 9 27 9 00 8 37 SC 7 19 7 14 7 02 6 86 Input 3 15 3 33 3 50 3 68 32 23 C DB WB TC 9 90 9 54 9 36 8 64 SC 8 42 8 30 8 24 8 04 Input 3 29 3 43 3 68 3 82 Heating Heating Outdoor conditions...

Page 36: ...C DB WB TC 9 72 9 27 9 00 8 37 SC 7 19 7 14 7 02 6 86 Input 3 15 3 33 3 50 3 68 32 23 C DB WB TC 9 90 9 54 9 36 8 64 SC 8 42 8 30 8 24 8 04 Input 3 29 3 43 3 68 3 82 Heating Heating Outdoor condition...

Page 37: ...B WB TC 11 34 10 82 10 50 9 77 SC 8 39 8 33 8 19 8 01 Input 3 47 3 66 3 850 4 04 32 23 C DB WB TC 11 55 11 13 10 92 10 08 SC 9 82 9 68 9 61 9 37 Input 3 62 3 77 4 04 4 20 Heating Heating Outdoor condi...

Page 38: ...DB WB TC 11 34 10 82 10 50 9 77 SC 8 39 8 33 8 19 8 01 Input 3 47 3 66 3 850 4 04 32 23 C DB WB TC 11 55 11 13 10 92 10 08 SC 9 82 9 68 9 61 9 37 Input 3 62 3 77 4 04 4 20 Heating Heating Outdoor cond...

Page 39: ...WB TC 15 12 14 42 14 00 13 02 SC 11 19 11 10 10 92 10 68 Input 4 39 4 64 4 881 5 13 32 23 C DB WB TC 15 40 14 84 14 56 13 44 SC 13 09 12 91 12 81 12 50 Input 4 59 4 78 5 13 5 32 Heating Heating Outdo...

Page 40: ...380 415V 342V 418V 0 955 15 0 090 0 8 MCC 36HRN1 50 220 240V 198V 254V 0 955 25 0 090 0 8 MCC 36HRN1 R 50 380 415V 342V 418V 0 955 15 0 090 0 8 MCC 48HRN1 R 50 380 415V 342V 418V 0 955 15 0 090 0 8 Re...

Page 41: ...MCAC UTSM 2008 11 Exploded View Indoor Units 39 10 Exploded View 10 1 MCC 24HRN1 33...

Page 42: ...1 3 6 Wire joint 1 20 Drain pump 1 3 7 Wire joint 3p 1 21 Installation bracket ass y 1 4 Air guide ring ass y 1 22 Board ass y 1 5 Foam ass y 1 23 Water pipe clamp 1 6 Fan ass y 1 24 Fan clip 1 7 Evap...

Page 43: ...MCAC UTSM 2008 11 Exploded View Indoor Units 41 10 2 MCC 30HRN1...

Page 44: ...p subassembly 1 4 Air inducting coils subassembly 1 21 Water pump installation bracket subassembly 1 5 Foam subassembly drip tray 1 22 Front barrier IV subassembly 1 6 Fan assembly 1 23 Water pump pum...

Page 45: ...MCAC UTSM 2008 11 Exploded View Indoor Units 43 10 3 MCC 30HRN1 R...

Page 46: ...p subassembly 1 4 Air inducting coils subassembly 1 21 Water pump installation bracket subassembly 1 5 Foam subassembly drip tray 1 22 Front barrier IV subassembly 1 6 Fan assembly 1 23 Water pump pum...

Page 47: ...MCAC UTSM 2008 11 Exploded View Indoor Units 45 10 4 MCC 36HRN1...

Page 48: ...p subassembly 1 4 Air inducting coils subassembly 1 21 Water pump installation bracket subassembly 1 5 Foam subassembly drip tray 1 22 Front barrier IV subassembly 1 6 Fan assembly 1 23 Water pump pum...

Page 49: ...MCAC UTSM 2008 11 Exploded View Indoor Units 47 10 5 MCC 36HRN1 R...

Page 50: ...p subassembly 1 4 Air inducting coils subassembly 1 21 Water pump installation bracket subassembly 1 5 Foam subassembly drip tray 1 22 Front barrier IV subassembly 1 6 Fan assembly 1 23 Water pump pum...

Page 51: ...MCAC UTSM 2008 11 Exploded View Indoor Units 49 10 6 MCC 48HRN1 R 34 3 3 2 3 3 3 4 3 5 3 6 3 7 32 3...

Page 52: ...Pump installation subassembly 1 4 Guide wind circle subassembiy 1 23 Boarding subassembly 1 5 Foam subassembly drip tray 1 24 Water pipe clamp 1 6 Wind wheel assembly 1 25 Clip wind wheel 1 7 Fixing b...

Page 53: ...wer Type MCC 24HRN1 MCC 30HRN1 MCC 30HRN1 R Power Phase 1 phase 1 phase 3 phase Frequency and Voltage 220 240V 50Hz 220 240V 50Hz 380 415V 50Hz Circuit Breaker Fuse A 40 25 40 25 25 15 Indoor Unit Pow...

Page 54: ...Field Wiring MCAC UTSM 2008 11 52 Indoor Units 13 Field Wiring...

Page 55: ...4 2 Specifications 55 3 Dimensions 59 4 Service Space 60 5 Wiring Diagrams 61 6 Air Velocity and Temperature Distributions 65 7 Capacity Tables 67 8 Electric Characteristics 76 9 Sound Levels 76 10 Ex...

Page 56: ...r flow Air flow directional control minimizes the air resistance and produces wilder air flow to vertical direction The range of horizontal air discharge is widened which secures wider air flow distri...

Page 57: ...h 600 480 400 878 792 700 Indoor noise level sound pressure dB A 43 41 38 43 41 38 Indoor unit Dimension W H D mm 990 660 203 990 660 203 Packing W H D mm 1089 744 296 1089 744 296 Net Gross weight kg...

Page 58: ...0 700 1400 1200 1000 Indoor noise level sound pressure dB A 45 43 40 45 43 40 Indoor unit Dimension W H D mm 990 660 203 1280 660 203 Packing W H D mm 1089 744 296 1379 744 296 Net Gross weight kg 27...

Page 59: ...3 h 1400 1200 1000 1400 1200 1000 Indoor noise level sound pressure dB A 45 43 40 45 43 40 Indoor unit Dimension W H D mm 1280 660 203 1280 660 203 Packing W H D mm 1379 744 296 1379 744 296 Net Gross...

Page 60: ...66 Number of circuits 5 5 5 Indoor air flow Hi Mi Lo m 3 h 1400 1200 1000 2136 1985 1775 2343 2085 1736 Indoor noise level sound pressure dB A 45 43 40 47 45 42 49 47 44 Indoor unit Dimension W H D mm...

Page 61: ...A B C D E F G 12000 24000 990 660 203 505 506 907 200 30000 36000 1280 660 203 795 506 1195 200 48000 60000 1670 680 240 1070 450 1542 200 Note The dimension of 12000Btu h 18000Btu h and 24000Btu h a...

Page 62: ...Service Space MCAC UTSM 2008 11 60 Indoor Units 4 Service Space...

Page 63: ...MCAC UTSM 2008 11 Wiring Diagrams Indoor Units 61 5 Wiring Diagrams 5 1 MUB 12HRN1 MUB 18HRN1...

Page 64: ...Wiring Diagrams MCAC UTSM 2008 11 62 Indoor Units 5 2 MUB 24HRN1 MUB 30HRN1 1 phase MUB 36HRN1 1 phase...

Page 65: ...MCAC UTSM 2008 11 Wiring Diagrams Indoor Units 63 5 3 MUB 30HRN1 3 phase MUB 36HRN1 3 phase...

Page 66: ...Wiring Diagrams MCAC UTSM 2008 11 64 Indoor Units 5 3 MUB 48HRN1 R MUB 60HRN1 R...

Page 67: ...MCAC UTSM 2008 11 Air Velocity and Temperature Distributions Indoor Units 65 6 Air Velocity and Temperature Distributions Discharge angle 60 CEILING Airflow velocity Temperature...

Page 68: ...Air Velocity and Temperature Distributions MCAC UTSM 2008 11 66 Indoor Units Discharge angle 60 FLOOR Temperature Airflow velocity...

Page 69: ...1 24 27 19 C DB WB TC 3 46 3 30 3 20 2 98 SC 2 56 2 54 2 50 2 44 Input 1 08 1 14 1 20 1 26 32 23 C DB WB TC 3 52 3 39 3 33 3 07 SC 2 99 2 95 2 93 2 86 Input 1 13 1 18 1 26 1 31 Heating Heating Outdoor...

Page 70: ...9 C DB WB TC 5 72 5 46 5 30 4 93 SC 4 24 4 20 4 13 4 04 Input 1 71 1 81 1 90 2 00 32 23 C DB WB TC 5 83 5 62 5 51 5 09 SC 4 96 4 89 4 85 4 73 Input 1 79 1 86 2 00 2 07 Heating Heating Outdoor conditio...

Page 71: ...9 C DB WB TC 7 67 7 31 7 10 6 60 SC 5 67 5 63 5 54 5 41 Input 2 43 2 57 2 70 2 84 32 23 C DB WB TC 7 81 7 53 7 38 6 82 SC 6 64 6 55 6 50 6 34 Input 2 54 2 65 2 84 2 94 Heating Heating Outdoor conditio...

Page 72: ...19 C DB WB TC 9 72 9 27 9 00 8 37 SC 7 19 7 14 7 02 6 86 Input 3 38 3 56 3 75 3 94 32 23 C DB WB TC 9 90 9 54 9 36 8 64 SC 8 42 8 30 8 24 8 04 Input 3 53 3 68 3 94 4 09 Heating Heating Outdoor condit...

Page 73: ...19 C DB WB TC 9 72 9 27 9 00 8 37 SC 7 19 7 14 7 02 6 86 Input 3 38 3 56 3 75 3 94 32 23 C DB WB TC 9 90 9 54 9 36 8 64 SC 8 42 8 30 8 24 8 04 Input 3 53 3 68 3 94 4 09 Heating Heating Outdoor condit...

Page 74: ...C DB WB TC 11 34 10 82 10 50 9 77 SC 8 39 8 33 8 19 8 01 Input 3 38 3 56 3 75 3 94 32 23 C DB WB TC 11 55 11 13 10 92 10 08 SC 9 82 9 68 9 61 9 37 Input 3 53 3 68 3 94 4 09 Heating Heating Outdoor co...

Page 75: ...C DB WB TC 11 34 10 82 10 50 9 77 SC 8 39 8 33 8 19 8 01 Input 3 38 3 56 3 75 3 94 32 23 C DB WB TC 11 55 11 13 10 92 10 08 SC 9 82 9 68 9 61 9 37 Input 3 53 3 68 3 94 4 09 Heating Heating Outdoor co...

Page 76: ...WB TC 15 12 14 42 14 00 13 02 SC 11 19 11 10 10 92 10 68 Input 4 23 4 47 4 70 4 94 32 23 C DB WB TC 15 40 14 84 14 56 13 44 SC 13 09 12 91 12 81 12 50 Input 4 42 4 61 4 94 5 12 Heating Heating Outdoo...

Page 77: ...WB TC 17 28 16 48 16 00 14 88 SC 12 79 12 69 12 48 12 20 Input 5 02 5 30 5 578 5 86 32 23 C DB WB TC 17 60 16 96 16 64 15 36 SC 14 96 14 76 14 64 14 28 Input 5 24 5 47 5 86 6 08 Heating Heating Outdo...

Page 78: ...18V 0 79 20 0 08 0 63 MUB 36HRN1 50 220 240V 198V 254V 0 79 25 0 08 0 63 MUB 36HRN1 50 380 415V 342V 418V 0 79 20 0 08 0 63 MUB 48HRN1 R 50 380 415V 342V 418V 1 25 20 0 059 0 39 2 MUB 60HRN1 R 50 380...

Page 79: ...otor clamp 1 28 Evaporator left clapboard 1 10 Motor clamp 1 29 Cover 1 11 Volute shell 2 30 Display panel box 1 12 Board 1 31 Display board ass y 1 13 Middle beam 1 32 Manual button 1 14 E part box c...

Page 80: ...orator left clapboard 1 10 Motor clamp 1 29 Cover 1 11 Volute shell 2 30 Display panel box 1 12 Board 1 31 Display board ass y 1 13 Middle beam 1 32 Manual button 1 14 E part box cover 1 33 Air outlet...

Page 81: ...orator left clapboard 1 10 Motor clamp 1 29 Cover 1 11 Volute shell 2 30 Display panel box 1 12 Board 1 31 Display board ass y 1 13 Middle beam 1 32 Manual button 1 14 E part box cover 1 33 Air outlet...

Page 82: ...Motor clamp 1 28 Evaporator left clapboard 1 10 Motor clamp 1 29 Cover 1 11 Volute shell 3 30 Display panel box 1 12 Board 1 31 Display board ass y 1 13 Middle beam 1 32 Manual button 1 14 E part box...

Page 83: ...Motor clamp 1 28 Evaporator left clapboard 1 10 Motor clamp 1 29 Cover 1 11 Volute shell 3 30 Display panel box 1 12 Board 1 31 Display board ass y 1 13 Middle beam 1 32 Manual button 1 14 E part box...

Page 84: ...acket 2 24 3 Wire joint 1 8 Right sealed board 1 24 4 Wire joint 1 9 left sealed board 1 24 5 Transformer 1 10 Pipe clamp board 1 25 Foam 2 11 Cover 1 26 Top cover ass y 1 12 Left cover 1 27 Drainage...

Page 85: ...cket 2 24 3 Wire joint 1 8 Right sealed board 1 24 4 Wire joint 1 9 Left sealed board 1 24 5 Transformer 1 10 Pipe clamp board 1 25 Foam 2 11 Cover 1 26 Top cover ass y 1 12 Left cover 1 27 Drainage p...

Page 86: ...Remote controller manual 1 12 The Specification of Power Type 12000 18000Btu h 24000 36000Btu h 30000 60000Btu h Power Phase 1 phase 1 phase 3 phase Frequency and Voltage 220 240V 50Hz 220 240V 50Hz 3...

Page 87: ...MCAC UTSM 2008 11 Field Wiring Indoor Units 85 13 Field Wiring MUB 12HRN1 MUB 18HRN1...

Page 88: ...Field Wiring MCAC UTSM 2008 11 86 Indoor Units MUB 24HRN1 MUB 30HRN1 MUB 36HRN1 1 phase...

Page 89: ...MCAC UTSM 2008 11 Field Wiring Indoor Units 87 MUB 30HRN1 MUB 36HRN1 3 phase MUB 48HRN1 R MUB 60HRN1 R...

Page 90: ...Units Part 3 Outdoor Units 1 Specifications 89 2 Dimensions 94 3 Service Space 99 4 Piping Diagrams 100 5 Wiring Diagrams 103 6 Electric Characteristics 109 7 Operation Limits 109 8 Sound Levels 110...

Page 91: ...Brand Welling Welling Input W 58 110 Capacitor F 2 5uF 450V 3 F 450V Speed r min 800 890 Outdoor coil Number of rows 2 2 Tube pitch a row pitch b mm 21 13 37 22 19 05 Fin spacing mm 1 5 1 4 Fin type...

Page 92: ...144 304 Capacitor F 3 F 450V 10uF 5 450V Speed r min 840 740 Outdoor coil Number of rows 2 1 6 Tube pitch a row pitch b mm 22 19 05 22 19 05 Fin spacing mm 1 4 1 6 Fin type Hydrophilic aluminium Hydr...

Page 93: ...r F 10uF 5 450V 10uF 5 450V Speed r min 740 740 Outdoor coil Number of rows 1 6 1 6 Tube pitch a row pitch b mm 22 19 05 22 19 05 Fin spacing mm 1 6 1 6 Fin type Hydrophilic aluminium Hydrophilic alum...

Page 94: ...53 Capacitor F 10uF 5 450V 4 F 450V 2 Speed r min 740 825 Outdoor coil Number of rows 1 6 2 Tube pitch a row pitch b mm 22 19 05 22 19 05 Fin spacing mm 1 6 1 6 Fin type Hydrophilic aluminium Hydrophi...

Page 95: ...or Brand Welling Input W 153 153 Capacitor F 4 F 450V Speed r min 825 Outdoor coil Number of rows 2 Tube pitch a row pitch b mm 22 19 05 Fin spacing mm 1 6 Fin type Hydrophilic aluminium Tube outside...

Page 96: ...Dimensions MCAC UTSM 2008 11 94 Outdoor Units 2 Dimensions 2 1 MOU 12HN1...

Page 97: ...MCAC UTSM 2008 11 Dimensions Outdoor Units 95 2 2 MOUA 18HN1...

Page 98: ...Dimensions MCAC UTSM 2008 11 96 Outdoor Units 2 3 MOUA 24HN1...

Page 99: ...MCAC UTSM 2008 11 Dimensions Outdoor Units 97 2 4 MOU 30HN1 MOU 30HN1 R MOU 36HN1 MOU 36HN1 R...

Page 100: ...Dimensions MCAC UTSM 2008 11 98 Outdoor Units 2 5 MOUA 48HN1 R MOUA 60HN1 R...

Page 101: ...pace Outdoor Units 99 3 Service Space 30cm 60cm 30cm 200cm Wall or obstacle Air inlet Air outlet Air inlet Maintain channel 60cm Obstacle Fix with bolt Deep foundation Necessary width 600mm is necessa...

Page 102: ...valve room temp sensor evaporator temp sensor 4 way valve compressor condenser temp sensor stop valve Throttle capiliary Check valve filter 4 2 MOUA 18HN1 T1 T2 T3 Indoor units Outdoor unit stop valv...

Page 103: ...op valve filter 4 4 MOU 30HN1 MOU 36HN1 MOU 30HN1 R MOU 36HN1 R T1 T2 T3 T4 Indoor units Outdoor unit T5 stop valve room temp sensor evaporator temp sensor 4 way valve compressor low pressure accumula...

Page 104: ...ambient temp sensor stop valve filter low pressure receiver Discharge temp sensor High pressure switch Low pressure switch 4 6 MOUA 60HN1 R T1 T2 T3 T4 Indoor units Outdoor unit stop valve room temp s...

Page 105: ...MCAC UTSM 2008 11 Wiring Diagrams Outdoor Units 103 5 Wiring Diagrams 5 1 MOU 12HN1...

Page 106: ...Wiring Diagrams MCAC UTSM 2008 11 104 Outdoor Units 5 2 MOUA 18HN1...

Page 107: ...MCAC UTSM 2008 11 Wiring Diagrams Outdoor Units 105 5 3 MOUA 24HN1...

Page 108: ...Wiring Diagrams MCAC UTSM 2008 11 106 Outdoor Units 5 4 MOU 30HN1 MOU 36HN1...

Page 109: ...MCAC UTSM 2008 11 Wiring Diagrams Outdoor Units 107 5 5 MOU 30HN1 R MOU 36HN1 R...

Page 110: ...Wiring Diagrams MCAC UTSM 2008 11 108 Outdoor Units 5 6 MOUA 48HN1 R MOUA 60HN1 R...

Page 111: ...54V 97 17 65 0 25 1 38 MOU 36HN1 R 50 380 415V 342V 418V 61 6 58 0 25 1 38 MOUA 48HN1 R 50 380 415V 342V 418V 63 8 3 0 065 0 065 0 7 0 7 MOUA 60HN1 R 50 380 415V 342V 418V 67 9 77 0 065 0 065 0 7 0 7...

Page 112: ...0 60000Btu h Microphone Outdoor Unit H 1 0m Note H 0 5 height of outdoor unit Note The point A is in the middle of the whole outdoor panel Model Noise level dB A MOU 12HN1 43 MOUA 18HN1 48 MOUA 24HN1...

Page 113: ...denser ass y 1 11 Base ass y 1 5 E part box ass y 1 12 Grille 1 5 1 Wire joint 2p 1 13 Front panel 1 5 2 Wire joint 5p 1 14 Compressor 1 5 3 Compressor capacitor 1 15 Net Clamp 6 5 4 Motor capacitor 1...

Page 114: ...ass y 1 16 Left supporter 1 5 1 High pressure valve 1 17 Big handle 1 5 2 Capillary 1 18 E part box ass y 1 6 Temp sensor ass y 1 18 1 Compressor capacitor 1 7 4 way valve ass y 1 18 2 Motor capacitor...

Page 115: ...16 1 Compressor capacitor 1 6 High pressure valve ass y 1 16 2 Wire joint 1 6 1 High pressure valve 1 16 3 Wire joint 2p 1 6 2 Capillary 1 16 4 Wire joint 2 7 4 way valve ass y 1 16 5 Contactor 1 7 1...

Page 116: ...ted pipe ass y 1 27 Partition board ass y 1 9 Rear right clapboard ass y 1 28 Rear net 1 10 Front right clapboard ass y 1 29 Left holder 1 11 4 way valve ass y 1 30 E part box ass y 1 11 1 Low pressur...

Page 117: ...3 Fluted pipe ass y 1 27 Axial flow fan 1 9 Rear right clapboard ass y 1 28 Partition board ass y 1 10 Front right clapboard ass y 1 29 Rear net 1 11 4 way valve ass y 1 30 Left holder 1 11 1 Low pres...

Page 118: ...nel 1 20 4 AC contactor 1 8 Low pressure valve ass y 1 20 5 Main control board ass y 1 8 1 4 way valve 1 20 6 Wire joint 4p 1 8 2 Solenoid 1 20 7 Transformer 1 8 3 Low pressure valve 1 20 8 Electric i...

Page 119: ...nel 1 20 4 AC contactor 1 8 Low pressure valve ass y 1 20 5 Main control board ass y 1 8 1 4 way valve 1 20 6 Wire joint 4p 1 8 2 Solenoid 1 20 7 Transformer 1 8 3 Low pressure valve 1 20 8 Electric i...

Page 120: ...power is cut off 6 Protection Outdoor protection lack of phase phase sequence and temperature protection All lamps flashing at 5Hz Recover automatically after errors are eliminated For T3 malfunction...

Page 121: ...sensor is abnormal E4 Condenser temperature sensor is abnormal E2 Whether the resistance of the room temp sensor is 10K Replace temp sensor No Yes Replace the PCB E3 Whether the resistance of the evap...

Page 122: ...s 10K Replace temp sensor No Yes Replace the PCB E6 Whether the outdoor unit is power on Measure whether the voltage of the communication line s red and black end between the indoor and outdoor unit i...

Page 123: ...chip Yes No Check PCB board or replace the main control board Replace EEPROM Yes No E8 Check whether the water level switch is inserted well Check whether the water level switch is broken Check PCB b...

Page 124: ...ective Overload of current Check the current normally Is the current in rated range The outdoor PCB is defective Yes No Lack of phase Check the power supply is it 3 phase 380 415V Check the connection...

Page 125: ...or unit is bad ventilation 6 Refrigerant is leakage 7 K1 switch is defective Is pressure protective switch K2 open Yes Yes Yes Possible reason 1 The wires is loose to K2 2 Air or other gas in the refr...

Page 126: ...epair connector No Yes Is it the resistance is normal Indoor PCB is defective Replace the sensor Yes No High temperature protection of condenser Check the resistance of the temp sensor according to An...

Page 127: ...0000 36 6 13059 76 1 34105 116 0 40060 3 41 5878 37 5 87359 77 1 29078 117 0 38991 2 39 8239 38 5 62961 78 1 25423 118 0 37956 1 37 1988 39 5 39689 79 1 21330 119 0 36954 0 35 2024 40 5 17519 80 1 17...

Page 128: ......

Page 129: ...stallation Installation 127 Part 4 Installation 1 Precaution on Installation 128 2 Vacuum Dry and Leakage Checking 129 3 Additional Charge 130 4 Water Drainage 131 5 Insulation Work 133 6 Wiring 134 7...

Page 130: ...If the nuts have been loosened for a long time dusts and other impurities may enter the pipe system and may cause malfunction later So please expel the air out of the pipe with refrigerant before con...

Page 131: ...ruction environment common vacuum dry special vacuum dry Common vacuum dry procedure l Vacuum dry for the first time connect the all purpose detector to the inlet of liquid pipe and gas pipe and run t...

Page 132: ...onal Charge Caution Refrigerant cannot be charged until field wiring has been completed Refrigerant may only be charged after performing the leak test and the vacuum pumping When charging a system car...

Page 133: ...lated to prevent atomization Drainpipe should be installed before installing indoor unit After powering on there is some water in water receiver plate Please check if the drain pump can operate correc...

Page 134: ...tem 4 4 3 Selecting the diameter Number of connecting indoor units Calculate drainage volume Select the diameter Calculate allowed volume Total cooling capacity of indoor units HP 2 l hr Allowed volum...

Page 135: ...ve 100 5 1 2 Thickness choice for insulation material Insulation material thickness is as follows Pipe diameter mm Adiabatic material thickness Refrigerant pipe 6 4 25 4 10mm 28 6 38 1 15mm Drainage p...

Page 136: ...ipes Make sure there s no clearance in the joining part of the accessorial insulation material and local preparative insulation material 5 3 Drainage pipe insulation The connection part should be insu...

Page 137: ...air conditioner is pre heated by turning on the power 3 According to the user s requirement install the remote controller when the remote controller s signal can reach the indoor unit smoothly 4 Test...

Page 138: ...Control MCAC UTSM 2008 11 136 Control Part 5 Control 1 Remote Controller 137...

Page 139: ...s button to cancel ON timer and OFF timer When you push the RESET button all current settings are cancelled and get into the condition of beginning In the clock the colon in 0 00 will flash the mode d...

Page 140: ...2 Fan speed se ttin g 4 Adjus t 1 3 Co ol heat Lock Reset 15 13 12 14 Confirmbutton 1 6 Economic operation TIME ON TI ME OF F C LOCK SWING AIRDIRE CTI ON O K ECO SW ING MODE FAN S P EED M AUTO COO L D...

Page 141: ...d when resetting or electrifying for the first time Press CLOCK for 5s icon indicating hour will flash with 0 5s Press it again icon indicating minute will flash with 0 5s and are used to adjust the f...

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