ACPro AWHD(24)ND3GO Installation Manual
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ACPro AWHD(24)ND3GO Installation Manual

Multi-zone outdoor 18-24k
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AC Pro Multi-Zone Outdoor
18-24K
Manual
AWHD(18)ND3GO
AWHD(24)ND3GO
(Refrigerant R410A)

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Summary of Contents for ACPro AWHD(24)ND3GO

  • Page 1 AC Pro Multi-Zone Outdoor 18-24K Manual AWHD(18)ND3GO AWHD(24)ND3GO (Refrigerant R410A)

  • Page 3: Notes For Installation And Maintenance

    PART I : TECHNICAL INFORMATION . NOTES FOR INSTALLATION AND MAINTENANCE SAFETY PRECAUTIONS: manufacturer before proceeding with installation or repair. DO NOT elongate these wires. IMPORTANT! 11. An air switch MUST be installed if there is no plug found Please read the safety precautions carefully before on the air conditioner.

  • Page 4: Main Tools For Installation And Maintenance

    MAIN TOOLS FOR INSTALLATION AND MAINTENANCE 1. Level meter, measuring 2. Screwdrivers 3. Impact drill, drill head, electric drill tape tape 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8. Vacuum pump 9.
  • Page 5 . INSTALLATION MANUAL INSTALLATION PROCEDURE Start installation Preparation before installation Read the requirements for Prepare tools Select installation location electric connection Select indoor unit Select outdoor unit installation location installation location Install the support of Install wall-mounting frame, outdoor unit drill wall holes (select it according to the actual situation)

  • Page 6: Electrical Connections

    GWHD(24)ND3EO GWHD(24)ND3FO AWHD(24)ND3EO AWHD(24)ND3FO some electric components.After fixing cable, ensure GWHD(24)ND3GO AWHD(24)ND3GO that leads between connection to fixed point have some space. The connection pipes and the connectiong wirings of the unit A and unit B must be corresponding to each other respective.
  • Page 7 .2 INSTALLNG THE OUTDOOR UNIT Install the Drain Fitting and the Drain Hoses (for models with heat pump only). Location • Use bolts to secure the unit to a flat, solid floor. • Condensation is produced and flows from the outdoor unit •...

  • Page 8: Installation Dimension Diagram

    .3 INSTALLATION DIMENSION DIAGRAM Use suitable instruments for the refrigerant R410A. Do not use any other refrigerant than R410A. Do not use mineral oils to clean the unit. The installation must be done by trained and qualified service personnel with reliability according to this manual. Contact service center before installation to avoid the malfunction due to unprofessional installation.

  • Page 9: Check After Installation

    .4 CHECK AFTER INSTALLATION Check Items Problems Owing to Improper Installation Is the installation reliable? The unit may drop, vibrate or make noises Has the gas leakage been checked? May cause unsatisfactory cooling (heating) effect Is the thermal insulation of the unit May cause condensation and water sufficient? dropping...
  • Page 10 . TROUBLESHOOTING .1 FLASHING LED OF INDOOR/OUTDOOR UNIT AND PRIMARY JUDGEMENT 1. Requirement of malfunction display. When several malfunctions happen at the same time, malfunction codes will be displayed circularly. 2. Malfunction display method • Hardware malfunction: it will be displayed immediately, please refer to “Malfunction status sheet”; •...

  • Page 11: Malfunction Checking And Elimination

    Malfunction status sheet Malfunction name Malfunction type Nixie tube Viewing malfunction code through Compressor overload protection remote controller within 200s; displayed directly on nixietube after 200s Indoor unit and outdoor unit do not match Hardware malfunction Malfunction of memory chip Hardware malfunction Wrong connection of communication wire or malfunction of electronic Hardware malfunction...
  • Page 12 • If the resistance of compressor coil is normal? If the isolation of compressor coil with copper pipe is good? • If the unit is overloaded? If the heat radiation of the unit is good? • If the refrigerant charge is suitable? Energize the unit 1.
  • Page 13 2. PFC protection malfunction, capacity charging malfunction Main checking points: • If the wiring of the induction is connected well and if the induction is broken; • If the mainboard is broken; Flow chart: For 18k Start Check if power supply is normal Power supply is Turn on the unit after power...
  • Page 14 Flow chart: For 24k Start Check if power supply is normal Power supply is Turn on the unit after the power supply abnormal? resumes to normal situation Check if the outdoor induction is broken Replace the induction The induction is broken Malfunction is eliminated Replace the outdoor mainboard...
  • Page 15 3. Compressor desynchronizing malfunction Main checking points: • If the pressure of the system is too high; • If the eletric expansion valve is working normally or it is broken; • If the radiation of the unit is good; Flow chart: The unit appears desynchronizing as soon as energizing and starting...
  • Page 16 Desynchronizing happens during operation Check if fan terminal is Replace the fan capacitor Outdoor unit is working? connected well Improve radiation situation of the unit Unit radiation is good? (such as cleaning the Replace the outdoor unit heat exchanger, improve ventilation Turn on the unit after the power supply voltage...
  • Page 17 4. Compressor overload, discharge protection malfunction Main checking points: • If the eletric expansion valve is connected well or it is broken; • If there is refrigerant leakage; • If the overload protector is broken; Flow chart: Start If the overload protector is connected well? Check the resistance between the two ends of the overload protector in ambient temperature, if the resistance is below 1k...
  • Page 18 5. Start failure malfunction Main checking points: • If the connection wire of the compressor is connected properly; • If the stop duration of the compressor is sufficient; • If the compressor is broken; • If the refrigerant charging amount is too much; Flow chart: Start If the stop duration of the compressor is...
  • Page 19 6. Temperature sensor malfunction Main checking points: • If the temperature sensor is damaged or broken • If the terminal of the temperature sensor is loose and are not connected • If the mainboard is broken Flow chart: Start Check whether the wiring terminal between temperature sensor and controller is loosened or poorly contacted? Insert the temperature...
  • Page 20 7. DC fan malfunction Main checking points: • If the outdoor fan is blocked by foreign objects; • The connection wire of DC fan is connected reliably? If it is loose? Flow chart: Start Turn on the unit after Check if the removing the foreign outdoor fan is blocked by objects...
  • Page 21 8. Communication malfunction Main checking points: • If the connection wire between the indoor unit and outdoor unit is connected well, • If the wires inside the unit is connected well; • If the indoor mainboard or outdoor main board is broken Flow chart: Communication malfunction of some indoor units...
  • Page 22 All the indoor units appear communication malfunction De-energize,check if the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Reconnect according to Connected correctly? Eliminate the malfunction the wiring diagram De-energize, check if the connection wire between the outdoor mainboard and the filter board according to...
  • Page 23 9. Anti-high temperatureand overload malfunction Main checking points: • If the outdoor ambient temperature is within the normal range; • If the indoor fan and outdoor fan are running normally; • If the indoor and outdoor radiation environment is good; Flow chart: Start If the outdoor ambient...

  • Page 24: Maintenance Method For Normal Malfunction

    .3 MAINTENANCE METHOD FOR NORMAL MALFUNCTION 1. Air Conditioner Cant be Started Up Discriminating Method Possible Causes Troubleshooting (Air conditioner Status) Confirm whether its due to power failure. If yes, wait for No power supply, or poor connection for After energization, operation indicator isnt power recovery.
  • Page 25 4. ODU fan motor cant operate Discriminating Method Possible Causes Troubleshooting (Air conditioner Status) Check the wiring status according to circuit Connect wires according to wiring diagram to make sure all Wrong wire connection, or poor connection diagram wiring terminals are connected firmly Measure the capacity of fan capacitor with an universal meter and find that the capacity Capacity of the ODU fan motor is damaged...

  • Page 26: Exploded View And Parts List

    . EXPLODED VIEW AND PARTS LIST AWHD(18)ND3EO AWHD(18)ND3FO AWHD(18)ND3GO The component picture is only for reference; please refer to the actual product. Technical Information...
  • Page 27 Part Code Description AWHD(18)ND3EO AWHD(18)ND3FO Product Code CB228W04100 CB228W07600 01473050 01473049 Front Grill Front Panel Assy 01433069 01433069 02803280P 02803263P Chassis Sub-assy Drainage Connecter 06123401 06813401 Drainage hole Cap Gas-liquid Separator Assy 07223048 07223048 0010524501G 00105249G Compressor and Fittings Electric Heater(Compressor) 7651873215 7651300403 06643008...
  • Page 28 Part Code Description AWHD(18)ND3GO Product Code CB228W07700 Front Grill 01473049 00000300024 Front Panel Assy Chassis Sub-assy 02803263P 06123401 Drainage Connecter Drainage hole Cap 06813401/76713033/76713068 07223048 Gas-liquid Separator Assy Compressor and Fittings 00105249G 7651300403 Electric Heater(Compressor) Tube Connector Sub-assy 4300040045 Magnet Coil 4-Way Valve Assy 03073328 0130326801P...
  • Page 29 AWHD(24)ND3EO AWHD(24)ND3FO AWHD(24)ND3GO The component picture is only for reference; please refer to the actual product. Technical Information...
  • Page 30 Part Code Description AWHD(24)ND3EO Product Code CB228W04200 CB228W04203 Front Grill 01473050 01473050 Cabinet 0143500401P 0143500401P Left Handle 26235401 26235401 Front Side Plate 01305086P 01305086P Electrical Heater (Chassis) 7651000411 7651000411 Chassis Sub-assy 02803280P 02803280P Gas-liquid Separator 07223048 07223048 Compressor and Fittings 0010524501G 0010524501 Electric Heater(Compressor)
  • Page 31 Part Code Description AWHD(24)ND3FO AWHD(24)ND3GO Product Code CB228W07500 CB228W07800 Front Grill 01473050 01473050 Cabinet 0143500401P 0143500401P Left Handle 26235401 02113031 Front Side Plate 01305086P 01305086P Electrical Heater (Chassis) 7651000411 7651000411 Chassis Sub-assy 02803280P 02803280P Gas-liquid Separator 07223048 07223048 Compressor and Fittings...

  • Page 32: Removal Procedure

    REMOVAL PROCEDURE Warning: Be sure to wait a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. AWHD(18)ND3EO AWHD(18)ND3FO AWHD(18)ND3GO Step Procedure 1. Remove big handle and wire connection cover Before disassembly, remove the screws fixing big handle and right side plate to remove the big handle.
  • Page 33 Step Procedure 2. Remove top cover top cover Remove the screws fixing top cover, panel and left & right side plate, to remove top cover. 3. Remove grille Remove the screws fixing grille and panel, to remove the grille on the panel. grille 4.Remove panel Remove the screws fixing panel, chassis and...
  • Page 34 Step Procedure 5. Remove right side plate Remove the screws fixing right side plate, valve support and guard grille, to remove the right side plate. right side plate 6. Remove guard grille Remove the screws fixing guard grille and left side plate to remove guard grille. guard grille 7.
  • Page 35 Step Procedure 8. Remove condenser support Remove the screws fixing support and chassis, to remove the condenser support. condenser support 9. Remove axial fan blade Remove the screw nuts fixing fan blade with spanner, to remove the fan blade. axial fan blade 10.
  • Page 36 Step Procedure 11. Remove electric box sub-assy electric box sub-assy Remove the tapping screws fixing isolation sheet, loosen the wire binds, pull out the terminal, lift to remove the electric box sub- assy. 12. Remove PFC electrical inductance Remove the screws fixing PFC electrical inductance and isolation sheet, to remove the PFC electrical inductance.
  • Page 37 Step Procedure 14. Remove suction pipe sub-assy Welding cut the welding point jointing the suction pipe sub-assy, compressor and liquid receiver, to remove the suction pipe sub-assy. suction pipe sub-assy 15. Remove liquid receiver Remove the screws fixing isolation sheet and liquid receiver and lift to remove the liquid receiver.
  • Page 38 Step Procedure 17. Remove compressor compressor Remove the screw nuts fixing compressor foots and chassis with spanner, as well as the foot cushion, to remove the compressor. 18.Remove valve support assy valve support assy Remove the screws fixing valve support assy and chassis sub-assy, to remove the valve support assy.
  • Page 39 AWHD(24)ND3EO AWHD(24)ND3FO AWHD(24)ND3GO Step Procedure 1. Remove valve cover and top panel Twist off the screws used for fixing and valve cover, pull valve cover up ward to remove it. top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 40 Step Procedure Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. panel 3. Remove right side plate and left side plate right side plate Remove the scre ws connecting the right side plate with the chassis, the valve support and the electric box, and then remove the right side plate assy .
  • Page 41 Step Procedure 4. Remove fan motor and axial flow blade axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. fan motor fixing frame Remove the 4 tapping screws fixing the motor; disconnect the leading wire insert of the motor and then remove the motor.
  • Page 42 Step Procedure 6. Remove soundproof sponge and 4-way valve assy soundproof sponge Since the piping ports on the soundproof 4-way valv e assy sponge are torn easily, remove the soundproof sponge carefully Discharge the refrigerant completely; unsolder the pipelines connecting the compressor and the condenser assy,and Connection Pipe then remove the 4-way valve assy.
  • Page 43 Step Procedure 8. Remove Cut off Valve and Valve Support Remove the 2 bolts fixing the valve subassemblies. Unsolder the welding joint connecting the gas valve and the return air pipe. Remove the gas valve. (Note: When unsoldering the soldering joint, Valve Support wrap the gas valve with wet cloth completely to avoid damage to the valve caused by high...
  • Page 44 Step Procedure 11. Remove condenser sub-assy condenser Remove the chassis sub-assy and condenser sub-assy. chassis sub-assy Technical Information...

  • Page 45: Refrigerant System Diagram

    REFRIGERANT SYSTEMD IAGRAM outdoor indoor filter A heat exchanger filter outdoor heat exchanger 4-way valve B heat exchanger filter high pressure switch Note: Not available for 14K/18K model discharge silencer C heat exchanger discharge temperature sensor filter D heat exchanger gas -liquid separator filter Note: Not available for 14K/18K model...

  • Page 46: Wiring Diagram

    WIRING DIAGRAM Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green COMP Compressor Yellow Brown Grounding wire Blue YEGN Yellow/Green Black Violet Orange OUTDOOR UNIT AWHD(18)ND3EO AWHD(18)ND3FO AWHD(18)ND3GO TERMINAL POWER BLOCK L2 L3 EXHAUST AC-L1 θ TEMP.SENSOR AC-L2 AC-L OUTROOM T-SENSOR...
  • Page 47 AWHD(24)ND3EO AWHD(24)ND3FO AWHD(24)ND3GO 63633609 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...

  • Page 48: Pcb Printed Diagram

    PCB PRINTED DIAGRAM AWHD(18)ND3EO AWHD(18)ND3FO AWHD(18)ND3GO TOP VIEW No Name Terminal of compressor Terminal of low- temperature cooling temperature sensor Overload protection terminal of compressor Temperature sensor terminal of outdoor unit High pressure protection terminal Low pressure protection terminal Terminal of outdoor unit Electric heating belt terminal of chassis Terminal of 4-way valve...
  • Page 49 AWHD(24)ND3EO AWHD(24)ND3FO AWHD(24)ND3GO 2 3 4 No Name Terminal of compressor Low pressure protection terminal High pressure protection terminal Overload protection terminal ofcompressor Temperature sensor t erminal of outdoor unit Electric heating terminal of chassis Electric heating terminal of compressor...

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