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Refrigerant pipe installation

Installation

Note: All used branch pipe must be produced by Midea, otherwise it causes malfunction.

The indoor units should be installed equivalently at the both side of the U type branch

pipe.

Permitted Value

Piping

ipe

Lengt

Total pipe length (Actual)

18K+18K

30m

L+L1+L2

24K+24K

50m

30K+30K

50m

Max. branch pipe length

15m

L1, L2

Max. branch pipe length difference

10m

L1-L2

rop

ight

Max. height difference between
indoor unit and outdoor unit

20m

Max. height difference between
indoor units

0.5m

5.3.2 Size of joint pipes for indoor unit (R410a)

5.3.3 Size of joint pipes for outdoor unit (R410a)

5.3.4 The branching pipe must be installed horizontally, error angle of it should not large than 10°. Otherwise,
malfunction will be caused.

Содержание KOU-12HFN1-QRC8

Страница 1: ...Contents i Energy Related Products SUPER DC INVERTER SERIES Service Manual 2013 LFIS B 1309...

Страница 2: ......

Страница 3: ...nformation 1 Part 2 Indoor Units 6 Part 3 Outdoor Units 65 Part 4 Installation 77 Part 5 Electrical Control System 109 The specifications designs and information in this book are subject to change wit...

Страница 4: ......

Страница 5: ...General Information General Information 1 Part 1 General Information 1 Model Lists 2 2 External Appearance 3 2 1 Indoor Units 3 2 2 Outdoor Units 3 3 Nomenclature 4 4 Features 5...

Страница 6: ...RC4 Rotary GMCC KCD 18HRFN1 QRC4 KTB 18HWFN1 QRC4 KUE 18HRDN1 QRC4 KOU 18HFN1 QRC8 Rotary GMCC KCD 18HRFN1 QRC8 KTB 18HWFN1 QRC8 A KUE 18HRFN1 QRC8 KCA2 18HRFN1 QRC8 KFA 16HRFN1 QRC8 KOU 24HFN1 QRC4 R...

Страница 7: ...ppearance General Information 3 2 External Appearance 2 1 Indoor Units Super slim cassette Duct Ceiling Floor Compact Four way cassette Console 2 2 Outdoor Units Single fan outdoor unit Double fan out...

Страница 8: ...tion Designed Time A Time A Designed B Time B Designed C Time C Designed D Time D Designed Product Category C Cassette Type V AHU Type T Duct Type F Console Type U Ceiling Floor Type H High Static Pre...

Страница 9: ...is standard for the indoor units 4 4 Standard auto restart function and follow me function 4 5 Slim cassette with standard remote controller wire controller and CCM for optional Med Duct and HESP duc...

Страница 10: ...Indoor Units 6 Indoor Units Part 2 Indoor Units Super Slim Cassette Type 7 Duct Type 20 Ceiling Floor Type 35 New Four way Cassette Type Compact 44 Console Type 53...

Страница 11: ...Indoor Units 7 Super Slim Cassette Type 1 Features 8 2 Dimensions 12 3 Service Space 13 4 Wiring Diagrams 14 5 Electric Characteristics 15 6 Sound Levels 16 7 Accessories 17 8 The Specification of Po...

Страница 12: ...ifting panel design more convenient to clean and maintain the filter optional Old Cassette New Slim Cassette Reduction 18K 24K 840 230 840 840 205 840 11 30K 840 300 840 840 205 840 32 36K 48K 840 300...

Страница 13: ...tched on or off by remote controller When pressing the Clean Air button on the remote controller Ionizer will work and the indicator light on display board will shine New air intake I Io on ni iz ze e...

Страница 14: ...rve external air duct more flexible for the air supply 1 5 Built in draining pump Due to the improvement of structure more convenient to repair or replace the draining pump Built in draining pump to m...

Страница 15: ...d controller is optional with error code indication function Better man machine conversation interface Undated structure design 4 way wire layout design no raised part at backside more convenient to p...

Страница 16: ...nsions 12 Indoor Units 2 Dimensions Model A H KCD 18HRFN1 QRC4 KCD 18HRFN1 QRC8 205 235 KCD 24HRFN1 QRC4 205 235 KCD 24HRFN1 QRC8 245 275 KCD 30HRFN1 QRC8 245 275 KCD 36HRFN1 QRC4 KCD 36HRFN1 QRC8 245...

Страница 17: ...Service Space Indoor Units 13 3 Service Space 1000mm 1000mm 1000mm 1000m m...

Страница 18: ...Wiring Diagrams 14 Indoor Units 4 Wiring Diagrams KCD 18HRFN1 QRC4 KCD 18HRFN1 QRC8 KCD 24HRFN1 QRC4 KCD 24HRFN1 QRC8 KCD 30HRFN1 QRC8 KCD 36HRFN1 QRC4 KCD 36HRFN1 QRC8...

Страница 19: ...Min Max MFA KCD 18HRFN1 QRC4 50 220 240 198 254 10 KCD 18HRFN1 QRC8 50 220 240 198 254 10 KCD 24HRFN1 QRC4 50 220 240 198 254 10 KCD 24HRFN1 QRC8 50 220 240 198 254 10 KCD 30HRFN1 QRC8 50 220 240 198...

Страница 20: ...phone Model Noise Power dB A Noise level dB A H M L KCD 18HRFN1 QRC4 58 49 44 40 KCD 18HRFN1 QRC8 59 49 44 39 KCD 24HRFN1 QRC4 59 50 45 42 KCD 24HRFN1 QRC8 62 50 47 42 KCD 30HRFN1 QRC8 62 52 49 46 KCD...

Страница 21: ...al ring 1 Remote controller Its Frame The product you have might not be provided the following accessories Remote controller Its Frame 1 Remote controller holder 1 Mounting screw ST2 9 10 C H 2 Remote...

Страница 22: ...50Hz POWER WIRING mm 2 3 1 0 3 1 0 3 1 0 3 1 0 CIRCUIT BREAKER Fuse A 15 10 15 10 15 10 15 10 OUTDOOR UNIT POWER Phase 1 phase 1 phase 1 phase 3 phase Frequency and Voltage 220 240V 50Hz 220 240V 50Hz...

Страница 23: ...Field Wiring Indoor Units 19 9 Field Wiring...

Страница 24: ...nits Duct Type 1 Features 21 2 Dimensions 24 3 Service Space 25 4 Wiring Diagrams 26 5 Static Pressure 28 6 Electric Characteristics 30 7 Sound Levels 31 8 Accessories 32 9 The Specification of Power...

Страница 25: ...rear to the bottom in order to matching the installation condition 1 3 Fresh air intake function Optional for 18 60k Install one duct from the reserved fresh air intake to outdoor Continually inhale t...

Страница 26: ...mote on off and central control ports Reserved remote on off ports and central control ports can connect the cable of an on off controller or a central controller to realize remote on off control func...

Страница 27: ...of 10m The unit will realized remoter control The wired controller and the display board can display the error code or production code when the chips detect some failure 1 8 Twins Combination The uni...

Страница 28: ...nsion mm Air outlet opening size Air return opening size Size of outline dimension mounted plug A B C D E F G H I J K L M 12 700 210 635 570 65 493 35 119 595 200 80 740 350 18 24 920 270 635 570 65 7...

Страница 29: ...Service Space Indoor Units 25 3 Service Space Ensure enough space required for installation and maintenance All the indoor units reserve the hole to joint the fresh air pipe The hole size as following...

Страница 30: ...Wiring Diagrams 26 Indoor Units 4 Wiring Diagrams KTBU 12HWFN1 QRC8 KTB 18HWFN1 QRC4 KTB 18HWFN1 QRC8 A KTB 24HWFN1 QRC8 KTB 30HWFN1 QRC8 KTB 36HWFN1 QRC4 KTB 36HWFN1 QRC8 A...

Страница 31: ...Wiring Diagrams Indoor Units 27 KTB 24HWDN1 QRC4...

Страница 32: ...0 20 10 Low speed 300 400 700 800 Super high speed 500 400 300 200 Low speed 10 20 30 40 50 60 70 80 90 Pa 600 700 800 900 1000 1100 Air volume m h 3 External static pressure Pa High speed Mid speed 1...

Страница 33: ...tic Pressure Indoor Units 29 36 000Btu h 2400 2200 1600 1400 Low speed 10 20 30 40 50 60 70 80 90 1100 Air volume m h 3 External static pressure Pa High speed Mid speed 1200 1800 2000 Super high speed...

Страница 34: ...N1 QRC8 50 220 240 198 254 16 KTB 18HWFN1 QRC4 50 220 240 198 254 10 KTB 18HWFN1 QRC8 A 50 220 240 198 254 10 KTB 24HWDN1 QRC4 50 220 240 198 254 10 KTB 24HWFN1 QRC8 50 220 240 198 254 10 KTB 30HWFN1...

Страница 35: ...pe Duct Duct Model Sound Power dB A Noise level dB A H M L KTBU 12HWFN1 QRC8 59 41 38 36 KTB 18HWFN1 QRC4 59 46 43 41 KTB 18HWFN1 QRC8 A 59 45 42 40 KTB 24HWDN1 QRC4 58 43 38 32 KTB 24HWFN1 QRC8 63 46...

Страница 36: ...lation sheath 2 Binding tape 1 Seal sponge 1 Drainpipe Fittings for cooling heating Drain joint 1 Seal ring 1 Wired controller Its Frame Wired controller 1 Others Owner s manual 1 Installation manual...

Страница 37: ...ING mm 2 3 1 0 3 1 0 3 1 0 3 1 0 CIRCUIT BREAKER Fuse A 15 10 15 10 15 10 15 10 OUTDOOR UNIT POWER Phase 1 phase 1 phase 1 phase 1 phase 3 phase Frequency and Voltage 220 240V 50Hz 220 240V 50Hz 220 2...

Страница 38: ...Field Wiring 34 Indoor Units 10 Field Wiring KTBU 12HWFN1 QRC8 KTB 18HWFN1 QRC4 KTB 18HWFN1 QRC8 A KTB 24HWDN1 QRC4 KTB 24HWFN1 QRC8 KTB 30HWFN1 QRC8 KTB 36HWFN1 QRC4 KTB 36HWFN1 QRC8 A...

Страница 39: ...Indoor Units 35 Ceiling Floor Type 1 Features 36 2 Dimensions 37 3 Service Space 38 4 Wiring Diagrams 39 5 Electric Characteristics 41 6 Sound Levels 41 7 Accessories 42 8 The Specification of Power 4...

Страница 40: ...1 3 Two direction auto swing vertical horizontal and wide angle air flow Air flow directional control minimizes the air resistance and produces wilder air flow to vertical direction The range of hori...

Страница 41: ...Dimensions Indoor Units 37 2 Dimensions Capacity Btu h A B C D E 18K 24K 1068 675 235 983 220 30K 36K 1285 675 235 1200 220...

Страница 42: ...Service Space 38 Indoor Units 3 Service Space...

Страница 43: ...Wiring Diagrams Indoor Units 39 4 Wiring Diagrams KUE 18HRFN1 QRC8 KUE 24HRFN1 QRC8 KUE 30HRFN1 QRC8 KUE 36HRFN1 QRC4 KUE 18HRDN1 QRC4 KUE 24HRDN1 QRC4...

Страница 44: ...Wiring Diagrams 40 Indoor Units KUE 36HRFN1 QRC8 A...

Страница 45: ...0 KUE 30HRFN1 QRC8 50 220 240 198 254 10 KUE 36HRFN1 QRC4 50 220 240 198 254 10 KUE 36HRFN1 QRC8 A 50 220 240 198 254 10 Note MFA Max Fuse Amps A 6 Sound Levels Microphone 1m 1m Air outlet side 1 5m 1...

Страница 46: ...h 36000 Btu h 36000 Btu h INDOOR UNIT POWER Phase 1 phase 1 phase 1 phase 1 phase Frequency and Voltage 220 240V 50Hz 220 240V 50Hz 220 240V 50Hz 220 240V 50Hz POWER WIRING mm 2 3 1 0 3 1 0 3 1 0 3 1...

Страница 47: ...Indoor Units 43 9 Field Wiring...

Страница 48: ...1 Features 45 2 Dimensions 46 3 Service Space 47 4 Wiring Diagrams 48 5 Air Velocity and Temperature Distributions Reference Data 49 6 Electric Characteristics 50 7 Sound Levels 50 8 Accessories 51 9...

Страница 49: ...7 50 647mm The hooks are designed in the four corners of the body which can save installation space 1 3 Electric control box built in design The E box is simply and safely built inside the indoor unit...

Страница 50: ...Dimensions 46 Indoor Units 2 Dimensions...

Страница 51: ...Service Space Indoor Units 47 3 Service Space...

Страница 52: ...Wiring Diagrams 48 Indoor Units 4 Wiring Diagrams KCA2U 12HRFN1 QRC8 KCA2 18HRFN1 QRC8...

Страница 53: ...Air Velocity and Temperature Distributions Reference Data Indoor Units 49 5 Air Velocity and Temperature Distributions Reference Data Airflow velocity Temperature...

Страница 54: ...ts Power Supply Hz Voltage Min Max MFA KCA2U 12HRFN1 QRC8 50 220 240 198 254 20 KCA2 18HRFN1 QRC8 50 220 240 198 254 20 Notes MFA Max Fuse Amps A 7 Sound Levels 1 4m Microphone Model Noise Power dB A...

Страница 55: ...T2 9 10 C H 2 Remote controller manual 1 Alkaline dry batteries AM4 2 Others Owner s manual 1 Installation manual 1 Installation accessory The product you have might not be provided the following acce...

Страница 56: ...52 Indoor Units 10 Field Wiring KCA2U 12HRFN1 QRC8 KCA2 18HRFN1 QRC8...

Страница 57: ...eatures 55 2 Dimensions 57 3 Service Space 58 4 Wiring Diagrams 59 5 Air Velocity and Temperature Distributions Reference Data 60 6 Electric Characteristics 61 7 Sound Levels 62 8 Accessories 63 9 The...

Страница 58: ......

Страница 59: ...ed on or room temp is still high cold air will be blown out from top and bottom air outlet to cool down the room quickly Air outlet from top to maintain room temp When the room has been cooled down or...

Страница 60: ...1 5 Low noise DC indoor fan motor which has five speeds Low noise and energy saving Advanced centrifugal fan technology makes a fast airflow and reduces the indoor noise lower to 28dB 1 6 Golden fin...

Страница 61: ...Dimensions Console Type 57 2 Dimensions KFAU 12HRFN1 QRC8 KFA 16HRFN1 QRC8...

Страница 62: ...Service Space 58 Console Type 3 Service Space...

Страница 63: ...Wiring Diagrams Console Type 59 4 Wiring Diagrams KFAU 12HRFN1 QRC8 KFA 16HRFN1 QRC8...

Страница 64: ...Air Velocity and Temperature Distributions Reference Data 60 Console Type 5 Air Velocity and Temperature Distributions Reference Data Discharge angle 60 Airflow velocity Temperature...

Страница 65: ...lectric Characteristics Console Type 61 6 Electric Characteristics Model Indoor Units Power Supply Hz Voltage Min Max MFA KFAU 12HRFN1 QRC8 50 220 240 198 254 16 KFA 16HRFN1 QRC8 50 220 240 198 254 16...

Страница 66: ...Sound Levels 62 Console Type 7 Sound Levels 1 5m 1m Microphone Model Noise Power dB A Noise level dB A Higher H M L KFAU 12HRFN1 QRC8 57 47 44 40 37 KFA 16HRFN1 QRC8 59 48 47 44 40...

Страница 67: ...Others Installation manual 1 Owner s manual 1 9 The Specification of Power MODEL 12000 Btu h 18000 Btu h Power Phase 1 phase 1 phase Frequency and Voltage 220 240V 50Hz 220 240V 50Hz Circuit Breaker F...

Страница 68: ...Field Wiring 64 Console Type 10 Field Wiring KFAU 12HRFN1 QRC8 KFA 16HRFN1 QRC8...

Страница 69: ...Outdoor Units Outdoor Units 65 Part 3 Outdoor Units 1 Dimensions 66 2 Service Space 68 3 Piping Diagrams 69 4 Wiring Diagrams 70 5 Electric Characteristics 74 6 Operation Limits 75 7 Sound Levels 76...

Страница 70: ...OU 18HFN1 QRC8 845 560 335 360 312 320 700 KOU 24HFN1 QRC4 900 590 333 355 302 315 860 KOU 24HFN1 QRC8 900 590 333 355 302 315 860 KOU 30HFN1 QRC8 900 590 333 355 302 315 860 KOU 36HFN1 QRC4 990 624 3...

Страница 71: ...Dimensions Outdoor Units 67 Model Unit mm A B C D E F H KOU 36HFN1 QRC8 5A0 938 633 5 404 448 370 392 1369 KOU 36HFN1 RRC8 5A0 938 633 5 404 448 370 392 1369...

Страница 72: ...Service Space 68 Outdoor Units 2 Service Space More than 60cm More than 30cm More than 60cm More than 200cm Air inlet Air inlet More than 30cm Air outlet Wall or obstacle Maintain channel...

Страница 73: ...r Low pressure switch INDOOR OUTDOOR T2 Evaporator temp sensor middle Accumulator Electronic expansion valve CAPILIARY TUBE KOU 36HFN1 QRC4 KOU 36HFN1 RRC4 KOU 36HFN1 QRC8 KOU 36HFN1 RRC8 LIQUID SIDE...

Страница 74: ...Wiring Diagrams 70 Outdoor Units 4 Wiring Diagrams KOU 12HFN1 QRC8...

Страница 75: ...Wiring Diagrams Outdoor Units 71 KOU 18HFN1 QRC4 MOU 18HFN1 QRC8 KOU 24HFN1 QRC4 KOU 24HFN1 QRC8 KOU 30HFN1 QRC8 KOU 36HFN1 QRC4 KOU 36HFN1 QRC8 520...

Страница 76: ...Wiring Diagrams 72 Outdoor Units KOU 36HFN1 RRC4 KOU 36HFN1 RRC8 520 KOU 36HFN1 QRC8 5A0...

Страница 77: ...Wiring Diagrams Outdoor Units 73 KOU 36HFN1 RRC8 5A0...

Страница 78: ...V KOU 18HFN1 QRC4 50 220 240V 198V 254V KOU 18HFN1 QRC8 50 220 240V 198V 254V KOU 24HFN1 QRC4 50 220 240V 198V 254V KOU 24HFN1 QRC8 50 220 240V 198V 254V KOU 30HFN1 QRC8 50 220 240V 198V 254V KOU 36HF...

Страница 79: ...ety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surf...

Страница 80: ...Noise Power dB A Noise level dB A KOU 12HFN1 QRC8 61 58 KOU 18HFN1 QRC4 65 61 KOU 18HFN1 QRC8 65 60 KOU 24HFN1 QRC4 67 64 KOU 24HFN1 QRC8 69 60 KOU 30HFN1 QRC8 70 61 KOU 36HFN1 QRC4 69 65 KOU 36HFN1...

Страница 81: ...unit installation 80 4 Outdoor unit installation Side Discharge Unit 94 5 Refrigerant pipe installation 95 6 Drainage pipe installation 99 7 Vacuum Drying and Leakage Checking 103 8 Additional refrige...

Страница 82: ...Wiring connection and electric safety checking Test operation Refrigerant pipe installation and insulation Drainage pipe installation and insulation Indoor unit installation location selection Outdoor...

Страница 83: ...n The place shall easily support the outdoor unit s weight Locate the outdoor unit as close to indoor unit as possible The piping length and height drop can not exceed the allowable value The place wh...

Страница 84: ...ation 3 1 1 Service space for indoor unit Model A H Remark 18 30 205 235 R410A and R22 Cooling Cooling Heating 36 245 275 R410A and R22 Cooling Cooling Heating 3 1 2 Bolt pitch 3 1 3 Install the penda...

Страница 85: ...uts on the four installation hooks evenly to ensure the balance of the body Use a leveling instrument to make sure the levelness of the main body is within 1 Adjust the position to ensure the gaps bet...

Страница 86: ...ion 3 1 5 Install the panel Remove the grille Remove the 4 corner covers Hang the panel to the hooks on the mainbody If the panel is with auto lift grille please watch the ropes lifing the grille DO N...

Страница 87: ...ck on the ceiling to avoid condensate water Hang the air in grill to the panel then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the bod...

Страница 88: ...Btu Size of outline dimension mounted plug L M 12 740 350 18 24 960 350 30 36 1180 490 3 2 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions sh...

Страница 89: ...hexangular nuts on the four installation hooks evenly to ensure the balance of the body Use a leveling instrument to make sure the levelness of the main body is within 1 3 2 5 Install the air filter I...

Страница 90: ...hed seal sponge as per the indicating place in the following fig and then change the mounting positions of air return panel and air return flange When install the filter mesh please plug it into flang...

Страница 91: ...lation 87 3 3Ceiling floor indoor unit installation 3 3 1 Service space for indoor unit 3 3 2 Bolt pitch Ceiling installation Capacity Btu h D E 18K 24K 983 220 36K 1200 220 Wall mounted installation...

Страница 92: ...at the selected positions on the ceiling Then embed the expansible hooks fittings Wall mounted installation Install the tapping screws onto the wall Refer to picture below 3 3 4 Install the main body...

Страница 93: ...Put the side panels and grilles back Wall mounted installation Hang the indoor unit by insert the tapping screws into the hanging arms on the main unit The bottom of body can touch with floor or suspe...

Страница 94: ...ce space for indoor unit 3 4 2 Bolt pitch 3 4 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 12m...

Страница 95: ...gh the 4 hanger of the main body to suspend it Adjust the hexangular nuts on the four installation hooks evenly to ensure the balance of the body Use a leveling instrument to make sure the levelness o...

Страница 96: ...panel hooks till the panel closely stick on the ceiling to avoid condensate water Hang the air in grill to the panel then connect the lead terminator of the swing motor and that of the control box wit...

Страница 97: ...door unit installation 3 5 1 Service space for indoor unit 3 5 2 Install the main body Fix the hook with tapping screw onto the wall Hang the indoor unit on the hook The bottom of body can touch with...

Страница 98: ...5 KOU 36HFN1 QRC4 KOU 36HFN1 RRC4 KOU 36HFN1 QRC8 520 KOU 36HFN1 RRC8 520 624 366 396 KOU 36HFN1 QRC8 5A0 KOU 36HFN1 RRC8 5A0 633 5 404 448 4 3 Install the Unit Since the gravity center of the unit is...

Страница 99: ...h 30m 20m 24 000Btu h 30 000Btu h 50m 25m 36 000Btu h 60 000Btu h 65m 30m 5 2 The procedure of connecting pipes 5 2 1 Choose the pipe size according to the specification table 5 2 2 Confirm the cross...

Страница 100: ...pipe and fix it by supporter For horizontal refrigerant pipe the distance between supporters should not be exceed 1m For vertical refrigerant pipe the distance between supporters should not be exceed...

Страница 101: ...18K 18K 30m L L1 L2 24K 24K 50m 30K 30K 50m Max branch pipe length 15m L1 L2 Max branch pipe length difference 10m L1 L2 Drop Height Max height difference between indoor unit and outdoor unit 20m H1 M...

Страница 102: ...Refrigerant pipe installation 98 Installation...

Страница 103: ...er flowrate is decided by the capacity of indoor unit Relationship between water flowrate and capacity of indoor unit Capacity x1000Btu Water flowrate l h 12 2 4 18 4 24 6 30 7 36 8 42 10 48 12 60 14...

Страница 104: ...ng distance Gas bag 6 2 5 The horizontal pipe layout should avoid converse flow or bad flow Drainage pipe Water flow Drainage pipe Drainage pipe Drain tee Drain tee Water flow Water flow Water flow Wa...

Страница 105: ...h Refer the following picture for installation reference Flexible pipe 300mm Hanger A A Length of horizontal pipe 150mm B Lift height the pump head of water pump Down incline pipe B 6 2 8 Blowhole set...

Страница 106: ...at drainage outlet In light of the length of drainage pipe water shall be discharged about 1 minute delayed 2 3 Stop the operation of air conditioner power off the power supply and put the cover of wa...

Страница 107: ...Hg after 1 5 hours of drying check whether there is leakage source 4 Leakage test After the vacuum degree reaches 755mmHg stop vacuum drying and keep the pressure for 1 hour If the indicator of vacuum...

Страница 108: ...id pipe m Note Refrigerant may only be charged after performed the vacuum drying process Always use gloves and glasses to protect your hands and eyes during the charge work Use electronic scale or flu...

Страница 109: ...10mm If in hot or wet environment place the layer of insulation should be thicker accordingly 9 1 4 Installation highlights of insulation construction Gas pipe and liquid pipe shall be insulated sepa...

Страница 110: ...Engineering of insulation 106 Installation cause leakage to damage the house decoration...

Страница 111: ...eld wiring construction should be finished by qualified electrician Air conditioning equipment should be grounded according to the local electrical regulations Current leakage protection switch should...

Страница 112: ...units The gas side and liquid side stop values are both opened The air conditioner is pre heated by turning on the power 11 3 Test operation Set the air conditioner under the mode of COOLING by remote...

Страница 113: ...Electrical Control System Electrical Control System 109 Part 5 Electrical Control System 1 Electrical Control Function 110 2 Troubleshooting 124 3 Controller 158...

Страница 114: ...ssor stops and restarts up till T5 90 110 T5 115 decrease the frequency to the lower level every 2 minutes 105 T5 110 keep running at the current frequency T5 105 no limit for frequency For other unit...

Страница 115: ...set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan For Console a b c d 5 0 4 0 2 5 1 0 6 0 T1 24 e H H L 0 75 L H L 0 5 L H L 0 25 L L For Compact cassette 12K A5 12K 3...

Страница 116: ...E DC_FAN_SSLOW_SPD_ADD 23 22 20 28 19 17 26 25 1 3 2 3 Indoor fan running rules For Console 12K In cooling mode indoor fan runs all the time and the speed can be selected as high medium low auto and s...

Страница 117: ...4 T2 7 the compressor will keep the current frequency T2 7 the compressor frequency will not be limited For other units When T2 2 and lasts for 3 minutes the indoor has no capacity demand and resume...

Страница 118: ...PD_ADD D DC_FAN_SLOW_SPD_ADD C DC_FAN_MIN_SPD_ADD B DC_FAN_MID_SPD_ADD A DC_FAN_HI_SPD_ADD 21 19 18 16 15 13 12 10 1 3 3 3 Indoor fan running rules For Console 12K In heating mode indoor fan can be se...

Страница 119: ...2K When the compressor is on the indoor fan can be set to high medium low auto and silent And the anti cold wind function has the priority Auto fan action 3 5 T1 Ts T 4 High Low 5 Medium 4 5 For other...

Страница 120: ...minutes and T3 TCDI2 T3 T30SUBT3TWO T30 3 If the compressor cumulate running time is up to 29 minutes and T3 TCDI3 for 3 minutes 4 If the compressor cumulate running time is up to 120 minutes and T3...

Страница 121: ...pQuitDefrost_ADD The defrosting time achieves 10min Defrosting action 4 Way valve Indoor fan Outdoor fan 480P PMV PMV running 8 mins with 300P Compressor 10S 30S TimeA 10S no longer than 10min The oth...

Страница 122: ...nutes 2 Running in cooling mode 3 Compressor is off for 1 hour Condition of entry defrosting time1 time2 40 minutes When defrosting is end time1 and time2 are cleared Condition of ending defrosting If...

Страница 123: ...ontroller and the setting temperature can be changed between 17 30 In auto mode the machine will choose cooling heating or fan only mode according to T T T1 Ts For 12K units T T1 Ts Running mode T 1 C...

Страница 124: ...hange the AC current operation mode Suppose AC is off now it will not start up firstly after setting the timer off function And when reaching the setting time the timer LED will be off and the AC runn...

Страница 125: ...e from follow me signal every 3 minutes 3 The PCB will take action to the mode change information from remote controller signal and the follow me function will be turned off if the wired remote contro...

Страница 126: ...6 it means the compressor discharge temp is 116 degree 10 AD value of current The display value is hex number 11 AD value of voltage 12 Indoor unit running mode code Off 0 Fan only 1 Cooling 2 Heating...

Страница 127: ...cooling T2B 22 1 Indoor unit capacity demand code Actual data HP 10 If capacity demand code is higher than 99 the digital display tube will show single digit and tens digit For example the digital di...

Страница 128: ...lanation on indoor display board A5 Duct OPERATION TIMER DEF FAN ALARM Temporary button Operation lamp Timer indicator Infrared signal receiver Alarm indicator PRE DEF indicator cooling and heating ty...

Страница 129: ...Troubleshooting Electrical Control System 125 2 1 5 Icon explanation on indoor display board Compact cassette 2 1 6 Icon explanation on indoor display board Console...

Страница 130: ...function Running lamp Timer lamp Defrosting lamp 1 Indoor EEPROM malfunction 2 Indoor fan Speed has been out of control X 3 Open or short circuit of T1 or T2 temperature sensor X 4 Indoor outdoor unit...

Страница 131: ...T2B temperature sensor X X X E4 5 Indoor EEPROM malfunction X X X E7 6 Indoor fan speed is out of control X X E8 7 Refrigerant Leakage Detection O X EC 8 Outdoor unit malfunction X X X Ed 9 Full water...

Страница 132: ...E6 PFC module protection For MOU 36HFN1 QRC4 MOU 36HFN1 QRC8 E8 Outdoor fan speed is out of control P0 Top temperature protection of compressor P1 High pressure protection For 36k models P2 Low pressu...

Страница 133: ...indoor unit 2 4 1 1 Open or short circuit of temperature sensor Check the connections between temperature sensor and PCB Are the connections good Correct the connections No Yes Yes Replace indoor or o...

Страница 134: ...o No Check whether the power is on Replace outdoor main board Yes Whether the outdoor unit is power on Check whether the communication wire between the indoor and outdoor unit is connected correctly Y...

Страница 135: ...EPROM well Replace the indoor PCB Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code 2 4 1 4 Full water malfunction If the water level switch is inserted we...

Страница 136: ...oken Check the wires of fan motor Are all the connections good No Yes No Correct the connections No Yes Check whether the main PCB is normal through index 2 Yes Yes Check whether the fan motor is norm...

Страница 137: ...tdoor PCB NO 1 2 3 4 5 Color Orange Grey White Pink Black Signal Hu Hv Hw Vcc GND Color Red Blue Yellow Signal W V U 1 Release the UVW connector Measure the resistance of U V U W V W If the resistance...

Страница 138: ...motor Power on and when the unit is in standby measure the voltage of pin1 pin3 pin4 pin3 in fan motor connector If the value of the voltage is not in the range showing in below table the PCB must ha...

Страница 139: ...2 sensor Does the problem remain again No Is there any leakage Especially the connection parts such as the gas valve and the liquid valve No Shut off the power supply and turn it on 5 seconds later Is...

Страница 140: ...Check the wire connection between up down panel and indoor unit is it right Check the wire connection between up down panel and indoor unit is it right Correct the connection Correct the connection N...

Страница 141: ...osed The up down panel is not closed Check if the filter panel of up down panel is closed Check if the filter panel of up down panel is closed Lift the filter panel to close it Lift the filter panel t...

Страница 142: ...communication wires connection is it good enough Check the PQE communication wires connection is it good enough Yes Correct the wire connections Correct the wire connections No One of the 2 indoor PC...

Страница 143: ...outdoor unit 2 4 4 1 E0 malfunction If the EEPROM chip is welded on PCB replace the PCB directly Otherwise check whether the EEPROM chip plugged in PCB well Yes No Yes Insert the EEPROM well Replace t...

Страница 144: ...nce Increase the capacity of anti interference Yes Yes Replace the signal wire Yes Pull out and insert back No No Replace indoor PCB is the error distinguished Yes Replace the outdoor PCB No Check whe...

Страница 145: ...light Check the signal wire between the IPM module and the main board is it connected good Reconnect and retry Is error still display Replace IPM board and then check whether the system can run norma...

Страница 146: ...r the resistance of condenser temp sensorT3 is wrong refer to the Appendix 1 Yes Connect the wiring well Yes Judge 2 Outdoor ambient temp sensor T4 is malfunction No Replace outdoor ambient temperatur...

Страница 147: ...supply Check whether the voltage of IPM board P and N is normal DC277 356V for 18K 24K 30KBtu h DC277 410V for 36K 48KBtu h Replace bridge rectifiers and then check whether the system can run normally...

Страница 148: ...36KBtu h Check the power supply Check whether the voltage range of P N on IPM module is normal DC 350 650V Replace bridge rectifiers and then check whether the system can run normally Replace IPM boa...

Страница 149: ...rd and the PFC module is connected tightly Yes Check whether the voltage range of P N on IPM module is normal DC277 410V No Check whether the inductance of PFC module is good If the inductance is good...

Страница 150: ...tate properly The unit operates normally Replace outdoor fan motor Check the wires of fan motor Are all the connections good No Yes No Correct the connections No Yes Replace indoor main PCB Is it stil...

Страница 151: ...rigerant circulation volume is normal Whether abnormality is the same after gas charging Yes No No Reconnect and retest No Check refrigerant system such as clogging of capillary etc No Whether the con...

Страница 152: ...ce high pressure protector Yes Judge 2 Whether the high pressure protector is broken Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient temperature is higher than 50...

Страница 153: ...ystem is ok Judge 3 Check whether the outdoor ambient temperature is too low No Stop the unit Yes Method Connect the pressure gauge to the gauge joint of the system check whether the pressure is lower...

Страница 154: ...2 Check whether the outdoor ambient temperature is higher than 50 No Stop the unit Yes Judge 3 Check whether the outdoor unit is bad ventilation No Make the outdoor unit ventilate well Yes Judge 5 The...

Страница 155: ...harge temp is more than 115 C Check whether the wiring connection is right between compressor discharge temp sensor and PCB according to wiring diagrams Method Check whether the resistance of compress...

Страница 156: ...ge 1 Check whether the outdoor ambient temperature is higher than 50 No Judge 3 The refrigerant pipe is blocked Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe...

Страница 157: ...y Yes Connect it tightly check ok or not No No No Connect it well check ok or not Check whether the connecting line of the compressor is connected correctly or tightly Replace the IPM module check whe...

Страница 158: ...e between main board and the IPM module is connected tightly Yes Connect it tightly check ok or not No No No Connect it well check ok or not Check whether the connecting line of the compressor is conn...

Страница 159: ...and the indoor fan is running normal No Check refrigerant system such as clogging of capillary etc No Clean the heat exchanger and the air outlet Reconnect and retest No Whether the connection is goo...

Страница 160: ...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 17393 120 0...

Страница 161: ...489 5 234 9 35 35 78 75 8 084 115 2 422 4 222 8 36 34 32 76 7 82 116 2 357 3 211 4 37 32 94 77 7 566 117 2 294 2 200 7 38 31 62 78 7 321 118 2 233 1 190 5 39 30 36 79 7 086 119 2 174 0 180 9 40 29 15...

Страница 162: ...ireless Remote Controller 3 1 1RG51Q1 BGE General Function for wireless remote controller Model RG51Q1 BGE Rated voltage 3 0V 2pieces of LR03 7 batteries Min voltage for sending signal of CPU 2 4V Eff...

Страница 163: ...air conditioner 8 FAN SPEED Fan speed will be selected in following sequence once pressing this button AUTO LOW MED HIGH 9 TIME ON For time ON setting Once pressing this button the time will increase...

Страница 164: ...on Fan speedse tting SWING AIR DIRECTION Res et 13 1 Adjust Decrease the set temp Keeping pressing will decrease the temp with 1 per 0 5s 2 Adjust Increase the set temp Keeping pressing will increase...

Страница 165: ...ture and save energy This function is available on COOL HEAT or AUTO mode only NOTE While the unit is running under Energy saving mode it would be cancelled if press MODE FAN SPEED or ON OFF button 11...

Страница 166: ...AIR DIRECTION POWERFUL 5 1 TEMP Button Press the button to decrease the indoor temperature setting 2 TEMP Button Press the button to increase the indoor temperature setting 3 ON OFF Button Push this...

Страница 167: ...se the time ON setting in 60 minutes increments To cancel the time ON program simply adjust the time ON to 0 00 10 ECONOMIC RUNNING Button Press this button to go into the energy Saving operation mode...

Страница 168: ...el the TIMER ON then adjust the time of TIMER ON as 0 0 3 Timer off button Push the button to set TIMER OFF each time you push the button the time moves forward by o 5 hours When the set time is over...

Страница 169: ...then the icon of LOCK disappears In the mode of LOCK all the buttons are invalid except for LOCK button 5 CLOCK display Usually display the clock set currently Press the button CLOCK for 4 seconds the...

Страница 170: ...r Installation Installation Notice When the air conditioner needs the constant frequency wire Controller be sure adding a Wire Joint with 5 terminal named A B C D E in indoor unit and fixing a infrare...

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Kaisai KOU-12HFN1-QRC8, Руководство по обслуживанию

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