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328 080000 01

Specifications subject to change without notice.

11. Communication malfunction (E6)

Main detection points:

Check if the wire is damaged or the polarity is mixed between terminals.

Is the communication circuit of the indoor mainboard damaged?

Is the communication circuit of the outdoor mainboard (AP1) damaged?

Malfunction diagnosis process:

Did the unit operate normally
before malfunction?

Is the polarity correct

between all terminals?

If the wiring is
damaged?

Replace the
wire

Check the malfunction
type with communication
malfunction detector

Malfunction of outdoor
communication circuit

Replace outdoor
mainboard AP1

Replace indoor
mainboard AP2

Is the malfunction
eliminated?

End

Check the connection
wire according to the
wiring diagram.

Reconnect the wire or
replace the connection
wire according to the
wiring diagram.

Is the malfunction
eliminated?

If the connection wire
is connected well?

Yes

Fig. 71

Troubleshooting

Содержание DLFCAB

Страница 1: ...ersonal injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe persona...

Страница 2: ...208 230 1 60 1 R A J UNIT TYPE R OUTDOOR SYSTEM TYPE A COOLING ONLY Q HEAT PUMP 1 ALL MODELS OUTDOOR UNIT DLC C A 09 DLC OUTDOOR UNIT C MODEL D MODEL A ALL MODELS NOMINAL CAPACITY 09 3 4 TON 12 1 TON...

Страница 3: ...1 19 8 23 2 29 8 37 5 41 9 41 9 A C B D D E E F H Fig 2 Indoor Mounting Plate Table 3 DLFCAB DLCCAR DLFCHB DLCCHR SYSTEM SIZE 9K 12K 9K 12K 18K 24K 30K 36K Voltage 115 1 60 115 1 60 208 230 1 60 208...

Страница 4: ...15 6 15 6 15 6 NET Weight Cooling Only lbs 62 8 73 9 72 8 80 5 113 6 147 7 152 1 154 4 NET Weight Heat Pump lbs 71 7 77 2 78 3 86 114 7 142 2 154 4 161 Table 6 DLFDAB DLCDAR DLFDHB DLCDHR SYSTEM SIZE...

Страница 5: ...NCES INDOOR 6 0 15m min 5 0 13m min 6 5 0 13m min 1 8m CEILING FLOOR Fig 4 Indoor Unit Clearance CLEARANCES OUTDOOR A D B Air outlet Air inlet C E Fig 5 Outdoor Unit Clearance Table 7 Outdoor Clearanc...

Страница 6: ...AMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation S Be sure to comply with local codes while running wire from indoor unit to outdoor unit S Every wire m...

Страница 7: ...01 7 Specifications subject to change without notice CONNECTION DIAGRAMS Fig 6 Connection Diagram 9K 12K Units 115V Fig 7 Connection Diagram 9K 12K Units 208 230V Fig 8 Connection Diagram 18K 36K Unit...

Страница 8: ...BOL NAME WH White GN Green CAP Jumper Cap YE Yellow BN Brown COMP Compressor RD Red BU Blue Grounding wire YEGN Yellow Green BK Black VT Violet OG Orange NOTE Jumper cap is used to determine the fan s...

Страница 9: ...328 080000 01 9 Specifications subject to change without notice WIRING DIAGRAM INDOOR UNIT DLFCAB DLFCHB CONT Fig 10 Indoor Unit Sizes 18 24 208 230V Fig 11 Indoor Unit Sizes 30 36 208 230V...

Страница 10: ...10 328 080000 01 Specifications subject to change without notice WIRING DIAGRAM OUTDOOR UNIT DLCCAR DLCCHR Fig 12 Outdoor Unit Sizes 09 12 115V Fig 13 Outdoor Unit Sizes 09 12 208 230V...

Страница 11: ...328 080000 01 11 Specifications subject to change without notice WIRING DIAGRAM OUTDOOR UNIT DLCCAR DLCCHR CONT Fig 14 Outdoor Unit Size 18 208 230V Fig 15 Outdoor Unit Size 24 208 230V...

Страница 12: ...1 Specifications subject to change without notice WIRING DIAGRAM OUTDOOR UNIT DLCCAR DLCCHR CONT Fig 16 Outdoor Unit Sizes 30 36 208 230V WIRING DIAGRAM INDOOR UNIT DLFDAB DLFDHB Fig 17 Indoor Unit Si...

Страница 13: ...zes 09 24 208 230V 287 225 81 7 1 5 725 22 3 60 803 3 7 0 6 1625 5220 78 7 0 6 1625 1 02725 6 1 02725 3 6 1 8 78 5220 63 3 63 63 63 63 0 0 2 5 02725 21752 5 5 21752 5 6 237 21 5 1 9 325 725 1 1 20 287...

Страница 14: ...8 1 8 1 1 7 3 35 17 5 8 7 2 5 N 1 2 3 1 1 225 81 7 LURQ VKHOO PRWRU DSSOLHV WR WKH 0RWRU Fig 20 Outdoor Unit DLCDAR Sizes 09 12 115V 1 225 81 7 8 9 8 5 203 203 3527 725 29 5 2 5 7 50 1 7 6 32 5 2 1 1...

Страница 15: ...9 WR SUHYHQW WKH ULVN RI HOHFWULF VKRFN 51 1 1 1 Fig 22 Outdoor Unit DLCDAR Sizes 18 24 208 230V 51 1 3OHDVH GRQ W WRXFK DQ HOHFWURQLF FRPSRQHQW DQG WHUPLQDO ZKHQ WKH PDFKLQH LV UXQQLQJ VWRSSLQJ RU KD...

Страница 16: ...208 1 3 0DLQ RDUG BU BK BN 8 9 6 7 29 203 5 0 1 2 1 1 32 5 6 7 7 50 1 29 5 2 5 3527 725 203 203 5 8 9 8 JURXQG RQO LURQ VKHOO PRWRU DSSOLHV WR WKH 0RWRU 127 Fig 24 Outdoor Unit DLCDHR Sizes 09 12 208...

Страница 17: ...328 080000 01 17 Specifications subject to change without notice WIRING DIAGRAM OUTDOOR UNIT DLCD CONT Fig 26 Outdoor Unit DLCDHR Size 30 208 230V Fig 27 Outdoor Unit DLCDHR Size 36 208 230V...

Страница 18: ...This terminal is not used 2 Zero Line 3 Indoor Fan Motor 4 This jumper is not used 5 Jumper 6 Vertical Swing Motor 7 This terminal is not used 8 Horizontal swing motor 9 Temperature sensor 10 Wired c...

Страница 19: ...able 12 Indoor Units DLFCAB DLFCHB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Neutral Wire DC fan Up Down Swing Left Right swing Wired Controller Interface Wired Controller Interface Display interface Jum...

Страница 20: ...ire Fuse Neutral wire for health function interface Power Supply Neutral wire Communication interface Power Switch High frequency transformer Fan motor interface Buzzer Display Interface Display Inter...

Страница 21: ...DLCCAR DLCCHR NO NAME NO NAME NO NAME 1 Compressor output port 6 Power neutral wire port 11 AC fan motor port 2 Overload port 7 Live wire 12 DC fan motor port 3 Temperature sensor port 8 Compressor el...

Страница 22: ...put 4 Ground wire input 7 Electric heater compressor neutral wire 10 Fan interface 13 Compressor phases U V W 2 Neutral wire input 5 Electrical Heater wire 8 Electric heater chassis neutral wire 11 El...

Страница 23: ...ressor Wire Terminal Outdoor heat exchanger middle copper pipe temperature sensor terminal Compressor overload protection terminal Outdoor temperature sensor terminal Electronic Expansion Valve Sensor...

Страница 24: ...Size 24 Top View Table 17 Outdoor Units 1 Compressor interface 2 Compressor overload protector 3 Temperature sensor 4 Electric expansion valve 5 Outdoor fan 6 4 way valve 7 Indoor unit communication i...

Страница 25: ...l of neutral wire 2 Overload protection terminal of compressor OVC COMP 7 Terminal of 4 way valve 12 Protective tube FU101 3 Terminal of temp sensor CN2 8 Electric heater band of chassis HEAT2 L 13 Te...

Страница 26: ...cifications subject to change without notice PCB PRINTED DIAGRAMS CONT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Fig 42 Indoor Units DLFDAB DLFDHB Sizes 9 24 Top View Fig 43 Indoor Units DLFDAB DLFDHB Si...

Страница 27: ...minal of neutral wire 2 Auto button 3 Horizontal swing terminal 4 Vertical swing terminal 5 Communication terminal 6 Jumper cap 7 Ambient temperature sensor terminal 8 Pipe temperature sensor terminal...

Страница 28: ...ecifications subject to change without notice PCB PRINTED DIAGRAMS CONT 1 2 3 4 5 6 7 8 9 10 11 12 Fig 46 Outdoor Units DLCDAR DLCDHR Sizes 9 and 12 Top View Fig 47 Outdoor Units DLCDAR DLCDHR Sizes 9...

Страница 29: ...subject to change without notice PCB PRINTED DIAGRAMS CONT 4 5 6 8 9 11 12 13 14 15 16 17 18 19 1 2 3 7 10 Fig 48 Outdoor Units DLCDAR DLCDHR Sizes 18 and 24 Top View Fig 49 Outdoor Units DLCDAR DLCD...

Страница 30: ...ame 1 High frequency transformer T1 5 Terminal of 4 way valve 9 Protective tube FU101 2 Terminal of overload protection 6 Communication terminal 10 Terminal of ground wire 3 Terminal of temperature se...

Страница 31: ...Valve Liquid pipe side Gas pipe side Strainer Electron expansion valve Strainer Capillary Accumlator Compressor Fig 52 Refrigeration System Diagrams Indoor unit Outdoor unit COOLING HEATING 4 Way valv...

Страница 32: ...0 1 60 208 230 1 60 208 230 1 60 208 230 1 60 208 230 1 60 Min Piping Length ft 10 10 10 10 10 10 10 10 m 3 3 3 3 3 3 3 3 Standard Piping Length ft 25 25 25 25 25 25 25 25 m 7 5 7 5 7 5 7 5 7 5 7 5 7...

Страница 33: ...s Low side valve High side valve Charge hose Charge hose Vacuum pump Low side valve Fig 55 Manifold Deep Vacuum Method The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500...

Страница 34: ...s in the AUTO mode The indoor fan operates at the auto fan speed and the Swing function turns on Press AUTO during the ON status to turn off the unit 3 Auto fan Heating mode During the Auto Heating mo...

Страница 35: ...n in the original operation mode Ambient Temperature Display Control Mode 1 When the user sets the remote controller to display the set temperature corresponding remote control code 01 the current set...

Страница 36: ...unit first Problems may occur that are not covered by a diagnostic code however are covered by the diagnostic flow charts These problems are typical air conditioning mechanical or electrical issues th...

Страница 37: ...C5 OFF 3S blink15 times Wireless remote receiver and button are effective however can not transmit the related command 1 No jumper cap insert on mainboard 2 Incorrect insert of jumper cap 3 Jumper ca...

Страница 38: ...state P1 during blinking ON 0 25s and OFF 0 25s during blinking ON 0 25s and OFF 0 25s Showing during nominal cooling or nominal heating test 25 Compressor maximum frequency in test state P2 during bl...

Страница 39: ...tact of the DC motor control end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of the mainboard rev detecting circuit 38 Desynchronizing of compressor H7 OFF 3S blinks 7 times During the c...

Страница 40: ...3 times During the cooling and drying operation the compressor stops while the indoor fan operates During the heating operation the unit stops There is circuit malfunction on the outdoor unit s contro...

Страница 41: ...ndthe controller loosened or poorly contacted Insert the temperature sensor tightly Yes Is malfunction eliminated Is there a short circuit Make sure all parts fastened tight Is malfunction eliminated...

Страница 42: ...he malfunction is eliminated Reinsert the wiring terminal of indoor fan It s the malfunction of main board Replace a new main board that is of the same model It s the malfunction of main board Replace...

Страница 43: ...ere jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model End Yes Yes Assemble the jumper cap with the same model No Is malfunction el...

Страница 44: ...Is the indoor outdoor heat exchanger too dirty or are the air inlet and outlet blocked Normal fluctuation is within 10 of the rated voltage on the nameplate Malfunction is eliminated No No No No No No...

Страница 45: ...oard matches with display board Main board of IDU matches with that of ODU Communication wire is damaged Replace IDU s main board Malfunction eliminated End Connect the line according to wiring diagra...

Страница 46: ...Malfunction of the outdoor mainboard AP1 Replace outdoor mainboard Measure the voltage input with AC voltmeter see fig 30 Voltage within 180VAC 260VAC Shut down the power and wait 20 minutes or use DC...

Страница 47: ...wiring of the reactor L of the outdoor unit and the PFC capacitor Whether there is any damage or short circuit Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated...

Страница 48: ...pment operate normally before the failure occurs The AP1 voltage detection circuit is at fault Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of t...

Страница 49: ...ion If the outdoor ambient temperature is higher than 127 F Normal protection unit starts when ambient temperature lowers Unit restarts normally Unit restarts normally Is the unit clear of debris and...

Страница 50: ...in the system correct and have you opened both liquid and suction valves Does the unit start Is the compressor wired correctly Check the connection of outdoor mainboard AP1 and compressor and then con...

Страница 51: ...st the resistance of overload protector with ohmmeter resistance value should be 1000ohm Is the plug connecting the EEV to the control board connected securely Replace EEV coil of electronic expansion...

Страница 52: ...0 Repair or replace compressor Cylinder of compressor is blocked Compressor can not operate Repair or replace compressor 9 Air conditioner is leaking Table 26 Troubleshooting POSSIBLE CAUSES DISCRIMI...

Страница 53: ...Is the polarity correct between all terminals If the wiring is damaged Replace the wire Check the malfunction type with communication malfunction detector Malfunction of outdoor communication circuit...

Страница 54: ...sition for the indoor and outdoor units is improper Check whether the installation position is correct according to installation requirements for air conditioner Adjust the installation position and i...

Страница 55: ...he resistance between the compressor terminals and its 0 Repair or replace the compressor Cylinder of compressor is blocked Compressor can not operate Repair or replace the compressor Table 33 Air con...

Страница 56: ...hand to separate connection rod and horizontal louver Remove the horizontal louver along the center axle NOTE During operation install the left end of the horizontal louver first then install the rig...

Страница 57: ...328 080000 01 57 Specifications subject to change without notice DISASSEMBLY INSTRUCTIONS INDOOR UNIT CONT 6 7 8...

Страница 58: ...58 328 080000 01 Specifications subject to change without notice DISASSEMBLY INSTRUCTIONS INDOOR UNIT CONT 9 Remove electric box 10 Remove evaporator...

Страница 59: ...328 080000 01 59 Specifications subject to change without notice DISASSEMBLY INSTRUCTIONS INDOOR UNIT CONT...

Страница 60: ...60 328 080000 01 Specifications subject to change without notice DISASSEMBLY INSTRUCTIONS INDOOR UNIT CONT 11 Remove swing blade...

Страница 61: ...328 080000 01 61 Specifications subject to change without notice DISASSEMBLY INSTRUCTIONS INDOOR UNIT CONT 12 Remove cross flow blade and motor...

Страница 62: ...anel to separate it from the groove Remove the panel Remove the connection screws connecting the top cover plate with the front panel and the right side plate Next remove the top cover Remove the conn...

Страница 63: ...l flow blade Procedure Steps Remove the connection screws connecting the front panel with the chassis and the motor support Next remove the front panel Remove the connection screws connecting the righ...

Страница 64: ...t the lead out wire and remove the motor Remove the 2 tapping screws securing the motor support Lift the motor support to remove it Remove the 2 screws securing the electric box cover Lift to remove t...

Страница 65: ...il and remove the coil Wrap the 4 way Valve Assy with wet cotton and unsolder the 4 weld spots connecting the 4 way Valve Assy to remove NOTE Refrigerant should be discharged first The welding process...

Страница 66: ...anel top panel Twist off the screws used for fixing the handle pull the handle up ward to remove it Remove the screws connecting the top panel with the front panel and left right side plate and then r...

Страница 67: ...port with screwd river and then remove the panel Twist off the screws connecting the grille and panel and then remove the grille 5 Remove right side plate right side plate Twist off the screws connect...

Страница 68: ...cut off the tieline with scissors or pliers pull out the wiring terminal pull it upwards to remove the electric box electric box fireproofing Twist off the screws on electric box fireproofing with sc...

Страница 69: ...port pull it upwardsand then remove the motor support Twist off the screws connecting isolation sheet and end plate of condenser and chassis and then remove the isolation sheet 11 Remove 4 way valve 1...

Страница 70: ...alve note when unsoldering the soldering joint wrap the gas valve with wet cloth completely to avoid the damage to valve and release all refrigerant completely at first Unsolder the soldering joint be...

Страница 71: ...UTDOOR UNIT SIZES 18 24 CONT 15 Remove left side plate left side plate Twist off the screws connecting the left side plate and chassis with screwdriver and then remove the left side plate Pull it upwa...

Страница 72: ...ide plate and then remove the top panel 3 Remove the front side panel front side panel Loosen the screws connecting the front side panel and chassis Remove the front side panel Procedure valve cover R...

Страница 73: ...upport with a screwdriver Next remove the panel Twist off the screws connecting the grille and panel Next remove the grille 5 Remove the right side plate right side plate Twist off the screws connecti...

Страница 74: ...motor Twist off the tapping screws securing the motor Pull out the motor s leading wire pin and then remove the motor Procedure Twist off the screws on the electric box and cut off the tieline with s...

Страница 75: ...ll it upwards and then remove the motor support Twist off the screws connecting the isolation sheet and end plate of the condenser and chassis Next remove the isolation sheet 11 Remove the 4 way valv...

Страница 76: ...ote When unsoldering the soldering joint wrap the gas valve with wet cloth completely to avoid damaging the valve Be sure to release all refrigerant completely first Unsolder the soldering joint betwe...

Страница 77: ...IT SIZES 30 36 CONT Steps 15 Remove the left side plate left side plate Twist off the screws connecting the left side plate and chassis with a screwdriver Next remove the left side plate Pull it up to...

Страница 78: ...3 44 42 8 6 66 67 66 2 19 90 89 6 32 45 44 6 7 68 69 68 20 91 92 91 4 33 46 47 46 4 8 70 71 69 8 21 93 94 93 2 34 48 49 48 2 9 72 71 6 22 95 96 95 35 50 51 50 10 73 74 73 4 23 97 98 96 8 36 52 23 51 8...

Страница 79: ...lating pipe Downwards Pipe Shaper Fig 73 Remove the burrs d Put on the union nut S Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the pipe Union pipe Pip...

Страница 80: ...523 110 0 758 6 66 88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 3...

Страница 81: ...2 3 252 111 0 983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 3...

Страница 82: ...8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 955 12 306 2 27 45 07 66 9 165 105 2 872 11 289 6 28 43 16 67 9 489 106 2 792 10 274 29 41 34 68 9 165 107 2 715 9 259 3 30 39 61 69 8 854...

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