INVENTOR LCAC Service Manual Download Page 73

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7. Accessories

Name

Shape

Quantity

Installation fittings

Hook

Remote controller & Its Frame

Remote controller

Frame

Mounting screw(ST2.9×10-C-H)

Alkaline dry batteries (AM4)

Others

Owner's manual

- 18000 Btu/h

8. The Specification of Power

12000

20/16

Summary of Contents for LCAC

Page 1: ...SERVICE MANUAL english LCAC AIR CONDITIONING SYSTEMS...

Page 2: ......

Page 3: ...nformation 1 Part 2 Indoor Units 6 Part 3 Outdoor Units 97 Part 4 Installation 110 Part 5 Electrical Control System 144 The specifications designs and information in this book are subject to change wi...

Page 4: ...ii General Information...

Page 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 4...

Page 6: ...Coo ling and he ating Four way cas sette compact Coo ling and he ating Console Coo ling and he ating Floor standing Coo ling and heat ing Floor standing Coo ling and he ating 1 2 Outdoor Units Univers...

Page 7: ...External Ap pearance General Information 3 2 External Appearance 2 1 Indoor Units Super slim cassette Duct Compact Four way cassette Console Floor standing Floor standing Ceiling Floor...

Page 8: ...External Appearance 4 General Information 2 2 Outdoor Units Single fan outdoor unit Double fan outdoor unit...

Page 9: ...oor Units 6 Indoor Units Part 2 Indoor Units Super Slim Cassette Type 7 Duct Type 22 Ceiling Floor Type 39 Four way Cassette Type Compact 55 Console Type 64 Floor standing Type 75 Floor standing Type...

Page 10: ...e Type 1 Features 8 2 Dimensions 11 3 Service Space 12 4 Air Velocity Distributions Reference Data 13 5 Electric Characteristics 16 6 Sound Levels 17 7 Accessories 18 8 The Specification of Power 19 9...

Page 11: ...on motor is optional to increase the effect of fresh air 1 3 Optional ionizer generator Ionizer generator is optional to get refreshing air to your room Ionizer can be switched on or off by remote con...

Page 12: ...r replace the draining pump 7 8 9 Built in draining pump to make sure condensed water drain out reliably 1 6 Terminals for alarm lamp and long distance on off controller connection are standard Reserv...

Page 13: ...s Combination 18k 30k The units can be installed as Twin systems one outdoor unit can connect with two indoor units The indoor units can be combined in any of the different available ratings Alarm lam...

Page 14: ...680 136 126 91 196 132 A A B A A B A A B A B Service ho le for draining pump Fresh air in take 75 55 80 80 4 install hanger Gas side Liquid side E parts box 135 90 Pa nel Body 92 92 92 92 D D 92 92 D...

Page 15: ...Service Space 12 Indoor Units 3 Service Space 1000mm 1000mm 1000mm 1000m m...

Page 16: ...Air Velocity Distributions Reference Data Indoor Units 13 4 Air Velocity Distributions Reference Data 24K Cooling Heating...

Page 17: ...Air Velocity Distributions Reference Data 14 Indoor Units 36 42K Cooling Heating...

Page 18: ...Air Velocity Distributions Reference Data Indoor Units 15 50 60K Cooling Heating...

Page 19: ...Characteristics Model Indoor Unit Power Supply Hz Voltage Min Max MFA V4MCI 24 50 220 240 198 254 10 V4MCI 36 50 220 240 198 254 10 V4MCI 42 50 220 240 198 254 10 V4MCI 50 50 220 240 198 254 10 V4MCI...

Page 20: ...Levels Indoor Units 17 6 Sound Levels 1 4m Microphone Model Noise Power dB A Noise level dB A H M L 62 46 42 39 65 56 52 48 64 52 40 47 65 55 51 48 69 52 49 46 V4MCI 24 V4MCI 36 V4MCI 42 V4MCI 50 V4M...

Page 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...

Page 22: ...5 3 4 0 CIRCUIT BREAKER Fuse A 30 20 40 30 Indoor Outdoor Connecting Wiring Weak Electric Signal mm 2 2 0 2 2 0 2 Indoor Outdoor Connecting Wiring Strong Electric Signal mm 2 Model Btu h 42000 60000...

Page 23: ...Field Wiring 20 Indoor Units 9 Field Wiring...

Page 24: ...Wiring diagram Indoor Units 21 10 Wiring diagram V4MCI 24 V4MCI 36 V4MCI 42 V4MCI 50 V4MCI 60...

Page 25: ...nits Duct Type 1 Features 23 2 Dimensions 26 3 Service Space 27 4 Static Pressure 28 5 Electric Characteristics 31 6 Sound Levels 32 7 Accessories 33 8 The Specification of Power 34 9 Field Wiring 35...

Page 26: ...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...

Page 27: ...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...

Page 28: ...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...

Page 29: ...take 25 Drain pipe 25 Drain pipe Note standard product without filter Unit mm Model Outline dimension mm Air outlet opening size Air return opening size Size of install hanger Size of refrigerant pipe...

Page 30: ...Service Space Indoor Units 27 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...

Page 31: ...Static Pressure 28 Indoor Units 4 Static Pressure V4MDI 12 V4MDI 18...

Page 32: ...Static Pressure Indoor Units 29 V4MDI 24...

Page 33: ...Static Pressure 30 Indoor Units V4MDI 36 V4MDI 42 V4MDI 50 V4MDI 60...

Page 34: ...nit Power Supply Hz Voltage Min Max MFA V4MDI 12 50 220 240 198 254 16 V4MDI 18 50 220 240 198 254 10 V4MDI 24 50 220 240 198 254 10 V4MDI 36 50 220 240 198 254 10 V4MDI 42 50 220 240 198 254 10 V4MDI...

Page 35: ...n Discharge Microphone 1 4m Concealed Duct Type Duct Duct Model Sound Power dB A Noise level dB A H M L V4MDI 12 59 42 38 35 V4MDI 18 57 44 40 37 V4MDI 24 60 44 42 38 V4MDI 36 64 46 43 40 V4MDI 42 68...

Page 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...

Page 37: ...RING mm2 3 2 5 3 2 5 3 4 0 CIRCUIT BREAKER Fuse A 20 16 30 20 40 30 Indoor Outdoor Connecting Wiring Weak Electric Signal mm2 2 0 2 2 0 2 Indoor Outdoor Connecting Wiring Strong Electric Signal mm2 4...

Page 38: ...Wiring Diagram 36 Indoor Units 10 Wiring Diagram V4MDI 12 V4MDI 18 V4MDI 24 V4MDI 42 V4MDI 50 V4MDI 60...

Page 39: ...Wiring Diagram Indoor Units 37...

Page 40: ...g Floor Type 1 Features 40 2 Dimensions 41 3 Service Space 42 4 Electric Characteristics 43 5 Sound Levels 43 6 Air Velocity and Temperature Distributions Reference Data 44 8 Accessories 50 9 The Spec...

Page 41: ...1 3 Two direction auto swing vertical horizontal and wide angle air flow Air flow directional control minimizes the air re sistance and produces wilder air flow to vertical direction The range of hori...

Page 42: ...20 222 C 120 2 40 120 140 2 33 Wiring connection port 204 94 Fresh air intake Drain discharge port Refrigerant pipe hole Hanging arm D Capacity Btu h A C D V4MKI 18 V4MKI 24 1068 675 235 983 V4MKI 36...

Page 43: ...Service Space 42 Indoor Units 3 Service Space...

Page 44: ...36 50 220 240 198 254 10 V4MKI 42 50 220 240 198 254 10 V4MKI 50 50 220 240 198 254 10 V4MKI 60 50 220 240 198 254 10 Note MFA Max Fuse Amps A Sound Level 5 Microphone 1m 1m Air outlet side 1 5m 1m Mi...

Page 45: ...city and Temperature Distributions Reference Data 44 Indoor Units 6 Air Velocity and Temperature Distributions Reference Data Model V4MKI 18 V4MKI 24 Ceiling installation Discharge angle 17 Discharge...

Page 46: ...Air Velocity and Temperature Distributions Reference Data Indoor Units 45 Floor installation Discharge angle 17 Discharge angle 50...

Page 47: ...Air Velocity and Temperature Distributions Reference Data 46 Indoor Units Model V4MKI 36 Ceiling installation Discharge angle 17 Discharge angle 50...

Page 48: ...Air Velocity and Temperature Distributions Reference Data Indoor Units 47 Floor installation Discharge angle 17 Discharge angle 50...

Page 49: ...Air Velocity and Temperature Distributions Reference Data 48 Indoor Units Model V4MKI 42 V4MKI 50 V4MKI 60 Ceiling installation Discharge angle 17 Discharge angle 50...

Page 50: ...Air Velocity and Temperature Distributions Reference Data Indoor Units 49 Floor installation Discharge angle 17 Discharge angle 50...

Page 51: ...OOR UNIT POWER Phase 1 phase 1 phase 1 phase Frequency and Voltage 220 240V 50Hz 220 240V 50Hz POWER WIRING mm2 3 2 5 3 4 0 CIRCUIT BREAKER Fuse A 30 20 40 30 Indoor Outdoor Connecting Wiring Weak Ele...

Page 52: ...Wiring Diagram Indoor Units 51 10 Field Wiring...

Page 53: ...Wiring Diagram 52 Indoor Units 11 Wiring diagram V4MKI 18...

Page 54: ...Ceiling Floor Type Indoor Units 53 V4MKI 36 V4MKI 24...

Page 55: ...Wiring Diagram 54 Indoor Units...

Page 56: ...ity and Temperature Distributions Reference Data 59 5 Electric Characteristics 60 6 Sound Levels 60 7 Accessories 61 8 The Specification of Power 61 9 Field Wiring 62 10 Field Wiring 63 1 Dimensions 9...

Page 57: ...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...

Page 58: ...s side Liquid side 4 install hanger Body Drain pipe 32 Fresh air intake 65 647 647 50 Drain hole for Service 545 570 260 68 42 157 126 44 Wiring connection port 75 150 Distribution duct 2 E parts box...

Page 59: ...Service Space 58 Indoor Units 3 Service Space...

Page 60: ...Air Velocity and Temperature Distributions Reference Data Indoor Units 59 4 Air Velocity and Temperature Distributions Reference Data Airflowvelocity Temperature...

Page 61: ...s Model Indoor Units Power Supply Hz Voltage Min Max MFA V4MCRI 12 50 220 240 198 254 20 V4MCRI 18 50 220 240 198 254 20 Note MFA Max Fuse Amps A 6 Sound Levels 1 4m Microphone Model Noise Power dB A...

Page 62: ...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...

Page 63: ...Wiring Diagram 62 Indoor Units 9 Field Wiring V4MCRI 12 V4MCRI 18...

Page 64: ...Field Wiring Indoor Units 63 10 Field Wiring V4MCRI 12 V4MCRI 18...

Page 65: ...Features 65 2 Dimensions 67 3 Service Space 68 4 Air Velocity and Temperature Distributions Reference Data 69 5 Electric Characteristics 70 6 Sound Levels 71 7 Accessories 72 8 The Specification of Po...

Page 66: ...d bottom to make quick cooling When the A C is just switched 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 t...

Page 67: ...ed in a high position the lower louver closed 1 4 Four air inlets 1 5 Low noise DC indoor fan motor which has five speeds Low noise and energy saving Advanced centrifugal fan technology makes a fast a...

Page 68: ...Console Type Console Type 67 2 Dimensions 16 Drain pipe 195 Hanging arm Unit mm 700 600 210...

Page 69: ...Console Type 68 Console Type 3 Service Space...

Page 70: ...Console Type Console Type 69 4 Air Velocity and Temperature Distributions Reference Data Discharge angle 60 Airflow velocity Temperature...

Page 71: ...Console Type 70 Console Type 5 Electric Characteristics Model Indoor Units Power Supply Hz Voltage Min Max MFA V4MLI 12 V4MLI 18 50 220 240 198 254 16...

Page 72: ...Console Type Console Type 71 6 Sound Levels 1 5m 1m Microphone Model Noise Power dB A Noise level dB A H M L V4MLI 12 V4MLI 18 58 47 41 35...

Page 73: ...n fittings Hook 2 Remote controller Its Frame Remote controller 1 Frame 1 Mounting screw ST2 9 10 C H 2 Alkaline dry batteries AM4 2 Others 1 l a u n a m n o i t a l l a t s n I Owner s manual 1 18000...

Page 74: ...Console Type Console Type 73 9 Field Wiring V4MLI 12 V4MLI 18...

Page 75: ...Console Type 74 Console Type 10 Field Wiring V4MLI 12 V4MLI 18...

Page 76: ...g Type 75 Floor standing Type 1 Features 76 2 Dimensions 77 3 Service Space 78 4 Wiring Diagrams 79 5 Electric Characteristics 80 6 Sound Levels 81 7 Accessories 82 8 The Specification of Power 83 9 F...

Page 77: ...touch buttons make the operation easy clear and precise 1 4 Comfortable Air Flow Long distance air supply 3D air distribution Vertical and horizontal louvers auto swing optional 1 5 Fresh Air Optiona...

Page 78: ...Dimensions Floor standing Type 77 2 Dimensions H W D Dimension Model W mm D mm H mm V4MFI 24 500 315 1700...

Page 79: ...Service Space 78 Floor standing Type 3 Service Space...

Page 80: ...Wiring Diagrams Floor standing Type 79 4 Wiring Diagrams V4MFI 24...

Page 81: ...Electric Characteristics 80 Floor standing Type 5 Electric Characteristics Model Indoor Units Power Supply Hz Voltage Min Max MFA V4MFI 24 50 220 240V 198V 254V 10 Note MFA Max Fuse Amps A...

Page 82: ...Sound Levels Floor standing Type 81 6 Sound Levels 1m 1m Microphone Model Sound Power Level dB A Noise level dB A H M L V4MFI 24 63 49 5 46 43 5...

Page 83: ...ion Sleeves 2 6 Seal 1 7 Drain joint 1 8 Pipe hole protection Ring 1 9 Remote Battery 2 10 Remote Controller 1 11 Remote controller manual 1 12 User s manual 1 13 Installation manual 1 14 Remote contr...

Page 84: ...uency and Voltage 220 240V 50Hz POWER WIRING mm 2 3 1 0 CIRCUIT BREAKER Fuse A 15 10 OUTDOOR UNIT POWER Phase 1 phase Frequency and Voltage 220 240V 50Hz POWER WIRING mm2 3 2 5 CIRCUIT BREAKER Fuse A...

Page 85: ...Field Wiring 84 Floor standing Type 9 Field Wiring...

Page 86: ...Wiring diagram Floor standing Type 85 10 Wiring diagram V4MFI 24...

Page 87: ...ding Type 1 Features 87 2 Dimensions 88 3 Service Space 89 4 Air Velocity and Temperature Distributions Reference Data 90 5 Electric Characteristics 91 6 Sound Levels 92 7 Accessories 93 8 The Specifi...

Page 88: ...ir outlet louver of the unit can be closed manually to prevent the dust falling in 1 3 Simple and bright panel Adopts simple and bright style panel Floor Standing series are suitable for most differen...

Page 89: ...Dimensions 88 Floor standing Type 2 Dimensions Dimension Mode W mm D mm H mm V1MFI 50B V1MFI 66B 610 390 1925...

Page 90: ...Service Space Floor standing Type 89 3 Service Space...

Page 91: ...Air Velocity and Temperature Distributions Reference Data 90 Floor standing Type 4 Air Velocity and Temperature Distributions Reference Data Model 50 66K Airflow velocity Temperature...

Page 92: ...Electric Characteristics Floor standing Type 91 5 Electric Characteristics Model Indoor Units Power Supply Hz Voltage Min Max MFA V1MFI 50B V1MFI 66B 50 380 420V 342V 440V 16 Note MFA Max Fuse Amps A...

Page 93: ...Sound Levels 92 Floor standing Type 6 Sound Levels 1m 1m Microphone Model Sound Power Level dB A Noise level dB A H M L V1MFI 50B V1MFI 66B 67 59 53 47...

Page 94: ...elf tapping Screw 3 9 25 2 3 Flat Washers 2 4 Bushing Sleeve Cover 1 5 Sound Heat Insulation Sleeves 2 6 Seal 1 7 Drain joint 1 8 Pipe hole protection Ring 1 9 Remote Battery 2 10 Remote Controller 1...

Page 95: ...3 phase Frequency and Voltage 380 420V 50Hz Power Wiring mm 2 5 1 5 Circuit Breaker A 16 OUTDOOR UNIT POWER Phase 3 phase Frequency and Voltage 380 420V 50Hz Power Wiring mm 2 5 2 5 Circuit Breaker A...

Page 96: ...Field Wiring Floor standing Type 95 9 Field Wiring...

Page 97: ...Field Wiring 96 Floor standing Type 10 Field Wiring V1MFI 50B V1MFI 66B...

Page 98: ...rature Distributions Reference Data 59 5 Electric Characteristics 60 6 Sound Levels 60 7 Accessories 61 8 The Specification of Power 61 9 Field Wiring 62 10 Field Wiring 63 1 Dimensions 99 2 Service S...

Page 99: ...Dimensions Outdoor Units 99 1 Dimensions W H W1 A B D Model KBtu h Unit mm W D H W1 A B 12 18 800 333 554 870 514 340 24 845 363 702 914 540 350 36 42 946 410 810 1030 673 403...

Page 100: ...Dimensions 100 Outdoor Units Model KBtu h Unit mm W D H W1 A B 50 60 952 415 1333 1045 634 404...

Page 101: ...Service Space Outdoor Units 101 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...

Page 102: ...Evaporator temp sensor middle Accumulator Electronic expansion valve CAPILIARY TUBE U4MRS 36 U4MRT 42 U4MRT 50 U4MRT 60 LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER Compressor...

Page 103: ...4 Electric Characteristics U4MRS 12 U4MRS 18 U4MRS 24 U4MRS 36 U4MRT 42 U4MRT 50 U4MRT 60...

Page 104: ...used beyond the above conditions certain safety 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 con...

Page 105: ...6 Sound Levels H 1 0m Outdoor Unit Microphone Note H 0 5 height of out door unit Model Noise Power dB A Noise level dB A U4MRS 12 60 57 U4MRS 18 64 56 5 U4MRS 24 65 60 5 U4MRS 36 66 61 U4MRT 42 71 63...

Page 106: ...Wiring diagram 106 Outdoor Units 7 Wiring diagram U4MRS 12 U4MRS 18...

Page 107: ...Wiring diagram Outdoor Units 107 U4MRS 24 U4MRS 36...

Page 108: ...Wiring diagram Outdoor Units 109 U4MRT 42 U4MRT 50 U4MRT 60...

Page 109: ...unit installation 113 4 Outdoor unit installation Side Discharge Unit 130 5 Refrigerant pipe installation 131 6 Drainage pipe installation 135 7 Vacuum Drying and Leakage Checking 139 8 Additional ref...

Page 110: ...Wiring connection and electric safety checking Test operation Refrigerant pipe installation and insulation Drainage pipe installation and insulation Indoor unit installation location selection Outdoor...

Page 111: ...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...

Page 112: ...for indoor unit Model A H 18 205 235 24 42 245 275 48 55 287 317 3 1 2 Bolt pitch 3 1 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed...

Page 113: ...leveling instrument to make sure the levelness of the main body is within 1 Adjust the position to ensure the gaps between the body and the four sides of ceiling are even The body s lower part should...

Page 114: ...g the panel to the hooks on the mainbody If the panel is with auto lift grille please watch the ropes lifing the grille DO NOT make the ropes enwinded or blocked Tighten the screws under the panel hoo...

Page 115: ...r 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 body respectively Install the 4 corner covers back Note Th...

Page 116: ...Btu Size of outline dimension mounted plug L M 12 740 350 18 24 960 350 36 60 1240 500 3 2 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions sh...

Page 117: ...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...

Page 118: ...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...

Page 119: ...ice space for indoor unit 3 3 2 Bolt pitch Ceiling installation Capacity KBtu h D E 18 24 983 220 36 60 1565 220 Wall mounted installation 3 3 3 Install the pendant bolt Ceiling installation Select th...

Page 120: ...ible hooks fittings Wall mounted installation Install the tapping screws onto the wall Refer to picture below 3 3 4 Install the main body Ceiling installation The only installation method for the unit...

Page 121: ...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...

Page 122: ...n of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 12mm 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fit...

Page 123: ...lation 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 between the body and the...

Page 124: ...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 wi...

Page 125: ...door unit installation 3 7 7 Service space for indoor unit 3 7 8 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...

Page 126: ...xposed to direct sunlight f In the center of the room where possible 3 6 1 1 Please stand the unit in hard and flat ground Please reserve space for installation and maintenance 3 6 2 Installing 3 6 2...

Page 127: ...a A place which provides the spaces around the indoor unit as required above in the diagram b A place where is no obstacle near the inlet and outlet area c A place which can bear the weight of the ind...

Page 128: ...nting the air inlet grid Please take off the air inlet grid before connecting the pipes wires The grid is hitched by a loop inside To dismount the air inlet grid hold both sides of the grid and pull i...

Page 129: ...allation 4 Outdoor unit installation Side Discharge Unit 4 1 Service space for outdoor unit More than 60cm More than 30cm More than 60cm More than 200cm Air inlet Air inlet More than 30cm Air outlet W...

Page 130: ...firmly to prevent it from collapsing in case of earthquake or strong wind 5 Refrigerant pipe installation 5 1 Maximum pipe length and height drop Considering the allowable pipe length and height drop...

Page 131: ...the pipes so that it can pass the wall smoothly 5 2 9 Bind and wrap the wire together with the insulated pipe if necessary 5 2 10 Set the wall conduit 5 2 11 Set the supporter for the pipe 5 2 12 Loc...

Page 132: ...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...

Page 133: ...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...

Page 134: ...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...

Page 135: ...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...

Page 136: ...mHg 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 vacuu...

Page 137: ...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...

Page 138: ...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 separately if the gas pipe...

Page 139: ...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...

Page 140: ...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...

Page 141: ...Electrical Control System 144 Electrical Control System Part 5 Electrical Control System 1 Electrical Control Function 145 2 Troubleshooting 155 3 Controller 184...

Page 142: ...w ly B N orm al A Frequency holding Frequency lim it2 T5 C om pressor off Frequency lim it N orm al Frequency holding 1 2 3 Sensor protection at open circuit and breaking disconnection 1 2 5 Indoor fa...

Page 143: ...louver operates same as in cooling mode 4 Auto fan a b c d 5 0 4 0 2 5 1 0 6 0 T 1 2 4 e H H L 0 7 5 L H L 0 5 L H L 0 2 5 L L 1 3 2 Cooling Mode 1 3 2 1 Outdoor fan running rules The outdoor unit wi...

Page 144: ...Setting fan speed Actual fan speed H H H G A H H B C M M M Z D M M M E F L L L D G L L L H I T1 Td F L L L L D H H H H G M M M M Z The auto fan acts as below rules a b c d T1 Td e H H L 0 75 L H L 0 5...

Page 145: ...esume Off Decrease Hold 1 3 3 Heating Mode 1 3 3 1 Outdoor fan running rules 12K T 4 A A F re q u e n cy lin ka g e a re a Frequency linkage area Frequency of compressor operation B C A A 18 60K T 4 E...

Page 146: ...AC will enter the defrosting mode After the compressor starts up and keeps running mark the minimum value of T3 from the 10th minutes to 15th minutes as T30 1 If the compressor cumulate running time...

Page 147: ...Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minu...

Page 148: ...speed Anti cold wind function has the priority 1 3 7 3 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode but doesn t turns off but for console the unit will turn off 1 3 7 4...

Page 149: ...eless remote controller but buzzer will not respond When the PCB receives turning off follow me signal from wired remote controller the unit will quit follow me function at once The follow me function...

Page 150: ...limit caused by current Bit0 Frequency limit caused by voltage 16 DC fan motor speed 0 Off 1 Turbo 2 High 3 Medium 4 Low 5 Breeze 6 Supper breeze 17 IGBT radiator temp The display value is between 0...

Page 151: ...used by current 1 Frequency limit caused by T2 in cooling 2 Frequency limit caused by T2 in heating 3 Reach to the setting temperature 4 Frequency limit caused by T4 5 Defrosting 6 Mode switching 7 Hi...

Page 152: ...xplanation on indoor display board Duct OPERATION TIMER DEF FAN ALARM Temporary button Operation lamp Timer indicator Infrared signal receiver Alarm indicator PRE DEF indicator cooling and heating typ...

Page 153: ...roubleshooting 156 Electrical Control System 2 1 5 Icon explanation on indoor display board Compact cassette 2 1 6 Icon explanation on indoor display board Console 2 1 7 Display board of Floor standin...

Page 154: ...Troubleshooting Electrical Control System 157 2 1 8 Display board of Floor standing...

Page 155: ...on X off flash at 2Hz For other type 12K Malfunction Error Code Timer Lamp Operation Lamp flashes Indoor EEPROM malfunction E0 X 1 Communication malfunction between indoor and outdoor units E1 X 2 In...

Page 156: ...or free match indoor units P5 Sensor of outdoor IGBT is faulty P7 For other type 18K 60K Malfunction Error Code Timer Lamp Operation Lamp flashes Indoor EEPROM malfunction E0 X 1 Communication malfunc...

Page 157: ...ction P1 2 High temperature protection of top of compressor P2 3 Too low ambient temperature protection P3 4 Error rotor position protection of compressor P4 5 Mode conflict For free match indoor unit...

Page 158: ...ection P1 Voltage protection too high or too low P3 Protection of ultra low ambient temperature P4 Rotor position protection of compressor J0 High temperature protection of indoor heat exchanger in he...

Page 159: ...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 No Replace the sensor Replace the ind...

Page 160: ...al Control System 163 2 4 1 3 Indoor EEPROM malfunction EEPROM An electrically erasable programmable read only memory whose contents can be erased and reprogrammed using a pulsed voltage 2 4 1 4 Water...

Page 161: ...n 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 have problems and need to...

Page 162: ...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 2 minutes later Is it still displaying the error code Replace i...

Page 163: ...ubleshooting 166 Electrical Control System 2 4 2 For the super slim cassette with up down panel 2 4 2 1 Communication error between indoor unit and up down panel 2 4 2 2 Up down panel is defective F7...

Page 164: ...uct 2 4 3 1 Communication malfunction between master unit and indoor unit 2 4 3 2 Other malfunction between master unit and indoor unit One indoor unit displays E9 which means another indoor unit is f...

Page 165: ...4 4 1 F4 malfunction Outdoor EEPROM malfunction E0 display Yes Replace the outdoor main PCB Power off then restart the unit 2 minutes later EEPROM An electrically erasable programmable read only memo...

Page 166: ...Troubleshooting Electrical Control System 169 2 4 4 2 E1 malfunction For current loop communication...

Page 167: ...wire Yes Yes Replace the signal wire Yes Pull out and insert back No No Replace indoor main PCB is the error distinguished Yes Replace the outdoor Main PCB No Check whether there s any interference S...

Page 168: ...Troubleshooting Electrical Control System 171 2 4 4 3 J4 malfunction J4...

Page 169: ...outdoor ambient temperature sensor T4 Check whether the wiring of the outdoor ambient temperature sensor T4 is broken off Check whether the resistance of outdoor ambient temperature sensor T4 is wrong...

Page 170: ...L and N is normal Yes Measure whether input voltage of bridge rectifier is normal Yes No No Measure whether the voltage between P and N is normal refer to the Appendix 3 Replace the bridge rectifier N...

Page 171: ...Troubleshooting 174 Electrical Control System 2 4 4 6 F5 malfunction The same as E3 in indoor 2 4 4 7 J5 malfunction J5...

Page 172: ...outdoor main board No Replace low pressure protector No Whether the low pressure protector is broken Check whether the outdoor ambient temperature is too low No Stop the unit Yes Open fully valve cor...

Page 173: ...No Yes Replace the PFC module If has No Measure whether the voltage between P and N is normal refer to the Appendix 3 Replace the bridge rectifier No Check whether bridge rectifier is normal Check the...

Page 174: ...ischarge temp is more than 115 C Check whether the connection is right between compressor discharge temp sensor and PCB according to wiring diagrams Measure the resistance value of compressor discharg...

Page 175: ...No Check whether the outdoor ambient temperature is higher than 50 No Stop the unit Yes Check if the outdoor unit ventilation is good Yes Make the outdoor unit ventilate well Check whether the heat ex...

Page 176: ...Yes Replace the PFC module If has No Measure whether the voltage between P and N is normal refer to the Appendix 3 Replace the bridge rectifier No Check whether bridge rectifier is normal Check the wi...

Page 177: ...Troubleshooting 180 Electrical Control System 2 4 4 13 J0 malfunction J0...

Page 178: ...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...

Page 179: ...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...

Page 180: ...3 Appendix 3 Normal voltage of P and N 208 240V 1 phase 3 phase 380 420V 3 phase In standby around 310VDC around 530VDC In operation With passive PFC module With partial active PFC module With fully a...

Page 181: ...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...

Page 182: ...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...

Page 183: ...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...

Page 184: ...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...

Page 185: ...automatically if push this button 5 RESET inner located Once the recessed RESET button is pressed all of the current settings will be cancelled and the controller will return to the initial settings 6...

Page 186: ...hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjust the figure to 0 00 will cancel time ON setting 13 LOCK inner located Push this button to lock in al...

Page 187: ...h increasement after each press If cancel this function just set it to 0 0 4 Follow me button When under cool heat and auto mode press this button follow me function is active Press again this functio...

Page 188: ...oller 1 Operation mode indication When press MODE button the following mode can be selected in circle Auto Cool Dry Heat Fan only Auto Auto Cool Dry Heat Fan only Auto For cooling only model heat mode...

Page 189: ...lation 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 an infrared emitter whose anod...

Page 190: ...Scan here to download the latest version of this manual LCAC AIR CONDITIONING SYSTEMS...

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