Argo DUAL 18 DCI R32 Service Manual
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Argo DUAL 18 DCI R32 Service Manual

Multi split air conditioners – r32 - wifi
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MULTI SPLIT AIR
CONDITIONERS – R32 - WIFI
SERVICE MANUAL
OUTDOOR UNITS
ARGO DUAL 14 DCI R32
ARGO DUAL 18 DCI R32
ARGO TRIAL 21 DCI R32
ARGO TRIAL 24 DCI R32
ARGO QUADRI 28 DCI R32
Please read this manual carefully before installing and using the air conditioner, and
retain for future reference.
V 05/21

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Summary of Contents for Argo DUAL 18 DCI R32

  • Page 1 CONDITIONERS – R32 - WIFI SERVICE MANUAL OUTDOOR UNITS ARGO DUAL 14 DCI R32 ARGO DUAL 18 DCI R32 ARGO TRIAL 21 DCI R32 ARGO TRIAL 24 DCI R32 ARGO QUADRI 28 DCI R32 Please read this manual carefully before installing and using the air conditioner, and retain for future reference.

  • Page 2: Table Of Contents

    Table of Contents Service Manual Part I : Technical Information ............1 1. Summary .......................1 2. Specifications ....................2 3. Outline Dimension Diagram ............7 4. Refrigerant System Diagram ............8 5. Electrical Part ....................9 5.1 Wiring Diagram ......................9 5.2 PCB Printed Diagram ....................12 6.
  • Page 3 1. Summary Outdoor Unit: ARGO DUAL 14 DCI R32 ARGO TRIAL 21 DCI R32 ARGO TRIAL 24 DCI R32 ARGO DUAL 18 DCI R32 ARGO QUADRI 28 DCI R32 Technical Information...

  • Page 4: Specifications

    2. Specifications Model ARGO DUAL 14 DCI R32 Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 4100 Heating Capacity 4400 Cooling Power Input 1100 Heating Power Input Cooling Current Input 4.88 Heating Current Input 4.44 Rated Power Input...
  • Page 5 2. Specifications ARGO DUAL 18 DCI R32 Model Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 5300 Heating Capacity 5650 Cooling Power Input 1480 Heating Power Input 1250 Cooling Current Input 6.56 Heating Current Input 5.55...
  • Page 6 2. Specifications Model ARGO TRIAL 21 DCI R32 Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 6100 Heating Capacity 6500 Cooling Power Input 1480 Heating Power Input 1430 Cooling Current Input 6.57 Heating Current Input 6.33...
  • Page 7 2. Specifications Model ARO TRIAL 24 DCI R32 Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 7100 Heating Capacity 8600 Cooling Power Input 1880 Heating Power Input 2230 Cooling Current Input 8.35 Heating Current Input 9.89 Rated Power Input Cooling:3400/Heating:3000 Rated Current...
  • Page 8 2. Specifications Model ARGO QUADRI 28 DCI R32 Product Code Rated Voltage 220-240 Power Rated Frequency Supply Phases Cooling Capacity 8000 Heating Capacity 9500 Cooling Power Input 2120 Heating Power Input 2200 Cooling Current Input 9.41 Heating Current Input 9.77...

  • Page 9: Outline Dimension Diagram

    3. Outline Dimension Diagram ARGO DUAL 14 DCI R32 ARGO DUAL 18 DCI R32 Unit: mm ARGO TRIAL 21 DCI R32 ARGO TRIAL 24 DCI R32 ARGO QUADRI 28 DCI R32 Unit:mm Technical Information...

  • Page 10: Refrigerant System Diagram

    4. Refrigerant System Diagram Service Manual outdoor indoor filter A heat exchanger filter outdoor heat exchanger 4-way valve B heat exchanger filter high pressure switch discharge silencer C heat exchanger discharge temperature sensor filter D heat exchanger gas -liquid separator filter A1:A－unit electronic expansion valve B1:B-unit electronic expansion valve C1:C-unit electronic expansion valve D1:D-unit electronic expansion valve...

  • Page 11: Electrical Part

    5. Electrical Part 5.1 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 Technical Information...
  • Page 12 5. Electrical Part Service Manual ● Outdoor Unit ARO DUAL 14 DCI R32 ARGO DUAL 18 DCI R32 ARGO TRIAL 21 DCI R32 ARGO TRIAL 24 DCI R32 Technical Information...
  • Page 13 5. Electrical Part ARGO QUADRI 28 DCI R32 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...

  • Page 14: Pcb Printed Diagram

    5. Electrical Part 5.2 PCB Printed Diagram ARGO DUAL 14 DCI R32 ARGO DUAL 18 DCI R32 Name Name Terminal of compressor Terminal of outdoor fan Terminal of electronic expansion valve A Terminal of 4-way valve Terminal of gas-liquid valve temperature Sensor A...
  • Page 15 5. Electrical Part ARGO TRIAL 21 DCI R32 ARGO TRIAL 24 DCI R32 ARGO QUADRI 28 DCI R32 4 5 6 7 8 Name Name Terminal of compressor Terminal of electronic expansion valve B Terminal of high pressure protection 12 Terminal of electronic expansion valve A...

  • Page 16: Function And Control

    6. Function and Control 1 Basic functions of the system a. The compressor stops; b. the power of 4-way valve is cut off after 2min; c. the outdoor fan stops after 1min; d. the status of 1.1 Cooling Mode 4-way valve: energized; 1.3.3 Outdoor fan control in heating mode 1.1.1 Cooling conditions and process: The outdoor fan starts before 5s of the starting of compressor and...
  • Page 17 6. Function and Control If the discharge temperature protection continuously appears for 2.8 Compressor Phase-lacking Protection 6 times, the compressor can’t resume running. The compressor When the compressor starts, if one of the three phases is can resume running after cutting off the power and then putting detected open, the compressor will enter phase-lacking protection.

  • Page 18: Part Ii : Installation And Maintenance

    7. Notes for Installation and Maintenance Safety Precautions: Important! the valves are opened before energizing. 13. Check if there is electric leakage on the unit body. If yes, P l e a s e r e a d t h e s a f e t y p r e c a u t i o n s c a r e f u l l y b e f o r e please eliminate the electric leakage.
  • Page 19 7. Notes for Installation and Maintenance Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. WARNINGS 1. When installing or relocating the unit, be sure to 5.When installing the unit, make sure that connection keep the refrigerant circuit free from air or substances pipe is securely connected before the compressor other than the specified refrigerant.
  • Page 20 7. Notes for Installation and Maintenance than the minimum room area. Safety Precautions for Refrigerant The minimum room area is shown on the nameplate or following table a. ●To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is ●Leak test is a must after installation.
  • Page 21 7. Notes for Installation and Maintenance ●Make sure that there isn't any naked flame near the outlet of havent finished). the vacuum pump and its well-ventilated. ●Don't overfilling. ●The refrigerant should be recycled into the specialized ●After filling is finished, please do the leakage detection storage tank.
  • Page 22 7. Notes for Installation and Maintenance Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers Pipe cutter...

  • Page 23: Installation

    8. Installation Installation Procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 24: Electrical Connections

    To the power supply Air-conditioner Air switch capacity ARGO DUAL 14 DCI R32 N(1) N(1) 2 N(1) ARGO DUAL 18 DCI R32 brown blue yellow- yellow- yellow- yellow- blue black brown blue black brown...

  • Page 25: Installing The Outdoor Unit

    8. Installation 8.2 Installing the Outdoor Unit Use bolts to secure the unit to a flat, solid floor. When mounting the unit on a wall or the roof, make sure the support is firmly secured so that it cannot move in the event of conversion joint Use bolts to secure the unit to a flat, solid floor.

  • Page 26: Installation Dimension Diagram

    8. Installation 8.3 Installation Dimension Diagram Use suitable instruments for the refrigerant R32. Do not use any other refrigerant than R32. Do not use mineral oils to clean the unit. 50cm or more The installation must be done by trained and qualified service personnel with reliability according to this manual. Space to the cover 50cm or more...

  • Page 27: Check After Installation

    8. Installation 8.4 Check after Installation Check Items Problems Owing to Improper Installation Is the installation reliable? The unit may drop, vibrate or make noises May cause unsatisfactory cooling (heating) Has the gas leakage been checked? effect Is the thermal insulation of the unit May cause condensation and water dropping sufficient? May cause condensation and water dropping...

  • Page 28: Maintenance

    9. Maintenance 9.1 Precautions before Performing Inspection or Repair There are high-capacity electrolytic capacitors on the outdoor mainboard. Thus, even the power is cut off, there is high voltage inside the capacitors and it needs more than 20min to reduce the voltage to safety value. Touching the electrolytic capacitor within 20min after cutting the power will cause electric shock.

  • Page 29: Flashing Led Of Indoor/Outdoor Unit And Primary Judgement

    9. Maintenance 9.2 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 (1) Hardware malfunction: it will be displayed immediately, please refer to “Malfunction status sheet”; (2) Operation status: it will be displayed immediately, please refer to “Malfunction status sheet”;...

  • Page 30: Malfunction Checking And Elimination

    9. Maintenance Communication failure with Unit A Communication failure with Unit A Communication failure with Unit B Communication failure with Unit B Communication failure with Unit C Communication failure with Unit C Communication failure with Unit D Communication failure with Unit D Unit A freeze protection Unit A freeze protection Viewing malfunction code...
  • Page 31 9. Maintenance Energize the unit Please check: 1. if the indoor and outdoor heat exchanges are dirty, if there is obstacle to affect the radiation; 2. if the indoor and outdoor fans are running normally; If the above cases are existed? 3.
  • Page 32 9. Maintenance 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 14/18K Start Check if power supply is normal Turn on the unit after power supply Power supply is abnormal?
  • Page 33 9. Maintenance 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 The stop duration of the compressor is longer...
  • Page 34 9. Maintenance Desynchronizing happens during operation Check if fan Replace the fan capacitor Outdoor unit is working? terminal is connected well Improve radiation situation of the unit Unit radiation is good? (such as cleaning Replace the outdoor unit the heat exchanger, improve ventilation Turn on the unit after the power...
  • Page 35 9. Maintenance 4. Compressor overload, diacharge protectionmalfunction 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 36 9. Maintenance 5. Start failuremalfunction 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: Energize and start the unit...
  • Page 37 9. Maintenance 6. Temperature sensor malfunction Main checking points: If the temperature sensor is damaged or broken If the terminal of the temperature sensor is loosended or 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 38 9. Maintenance 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 Check if the after removing the outdoor fan is blocked by foreign objects...
  • Page 39 9. Maintenance 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 40 9. Maintenance 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 Eliminate the malfunction Connected correctly? the wiring diagram De-energize, check if the connection wire between the outdoor mainboard and the filter board according to the wiring diagram...
  • Page 41 9. Maintenance 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 It is a normal protection, please If the outdoor ambient temperature...

  • Page 42: Troubleshooting For Normal Malfunction

    9. Maintenance 9.4 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Discriminating Method (Air conditioner Possible Causes Troubleshooting Status) Confirm whether its due to power failure. If yes, No power supply, or poor connection After energization, operation indicator isn't wait for power recovery.
  • Page 43 9. Maintenance 4. ODU Fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit Connect wires according to wiring diagram to make connection diagram sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an Capacity of the ODU fan motor is universal meter and find that the capacity is out...

  • Page 44: Exploded View And Parts List

    10. Exploded View and Parts List ARGO DUAL 14 DCI R32 ARGO DUAL 18 DCI R32 The component is only for rererence; please refer to the actual product. Description Description Description Valve Support Assy Terminal Board Front Grill Cabinet Assy...
  • Page 45 10. Exploded View and Parts List ARGO TRIAL 21 DCI R32 ARGO TRIAL 24 DCI R32 The component is only for rererence; please refer to the actual product. Description Description Description Atmolysis Pipe Sub-assy Clapboard Sub-Assy Front Grill Front Panel Assy...
  • Page 46 10. Exploded View and Parts List ARGO QUADRI 28 DCI R32 The component is only for rererence; please refer to the actual product. Description Description Description Front Grill Valve Support Assy Clapboard Assy Front Panel Valve Cover Coping Tube Connector Sub-assy...

  • Page 47: Removal Procedure

    11. Removal Procedure ARGO DUAL 14 DCI R32 Warning: Be sure to wait for a minimum ARGO DUAL 18 DCI R32 of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly Complete axonometric drawing.
  • Page 48 11. Removal Procedure Step Procedure 4. Remove top panel Top panel Remove the connection screws connecting the top panel and the front panel, and then remove the top panel. 5. Remove front grille Grille Remove the connection screws connecting the front grille and the front panel, and then loosen the clasp to remove the front grille.
  • Page 49 11. Removal Procedure Step Procedure 7. Remove right side plate Right side plate Remove the screws connecting the right side plate with the chassis and the valve support. Then remove the right side plate. 8. Remove rear grill Rear grill Remove the screws connecting the rear grill and left side plate, and then remove the rear grill.
  • Page 50 11. Removal Procedure Step Procedure 10. Remove axial flow blade Axial flow blade Remove the nut on the blade and then remove the axial flow blade. 11. Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor.
  • Page 51 11. Removal Procedure Step Procedure 13. Remove 4-way valve assy 4-way valve assy Remove screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric box upwards to remove it. 14. Remove valve support sub-assy and expansion valve assy Expansion valve assy Remove the screw connecting the valve support and...
  • Page 52 11. Removal Procedure Step Procedure 16. Remove compressor Compressor Remove the 3 foot nuts fixing the compressor and then remove the compressor. 17. Remove condenser assy Condenser assy Support Remove the screws fixing the condenser support and then remove the condenser support. Remove the screws connecting the condenser support and the chassis assy, and then remove the condenser assy.
  • Page 53 11. Removal Procedure ARGO TRIAL 21 DCI R32 ARGO TRIAL 24 DCI R32 Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly Complete axonometric drawing.
  • Page 54 11. Removal Procedure Step Procedure 4. Remove top panel Top panel Remove the connection screws connecting the top panel and the front panel, and then remove the top panel. 5. Remove front grille Grille Remove the connection screws connecting the front grille and the front panel, and then loosen the clasp to remove the front grille.
  • Page 55 11. Removal Procedure Step Procedure 7. Remove right side plate Right side plate Remove the screws connecting the right side plate with the chassis and the valve support. Then remove the right side plate. 8. Remove rear grill Rear grill Remove the screws connecting the rear grill and left side plate, and then remove the rear grill.
  • Page 56 11. Removal Procedure Step Procedure 10. Remove axial flow blade Axial flow blade Remove the nut on the blade and then remove the axial flow blade. 11. Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor.
  • Page 57 11. Removal Procedure Step Procedure 13. Remove 4-way valve assy 4-way valve assy Remove screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric box upwards to remove it. 14. Remove valve support sub-assy and expansion valve assy Expansion valve assy Remove the screw connecting the valve support and...
  • Page 58 11. Removal Procedure Step Procedure 16. Remove compressor Compressor Remove the 3 foot nuts fixing the compressor and then remove the compressor. 17. Remove condenser assy Condenser assy Support Remove the screws fixing the condenser support and then remove the condenser support. Remove the screws connecting the condenser support and the chassis assy, and then remove the condenser assy.
  • Page 59 11. Removal Procedure ARGO QUADRI 28 DCI R32 Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly Complete axonometric drawing.
  • Page 60 11. Removal Procedure Step Procedure 4. Remove top panel Top panel Remove the connection screws connecting the top panel and the front panel, and then remove the top panel. 5. Remove front grille Grille Remove the connection screws connecting the front grille and the front panel, and then loosen the clasp to remove the front grille.
  • Page 61 11. Removal Procedure Step Procedure 7. Remove right side plate Right side plate Remove the screws connecting the right side plate with the chassis and the valve support. Then remove the right side plate. 8. Remove rear grill Rear grill Remove the screws connecting the rear grill and left side plate, and then remove the rear grill.
  • Page 62 11. Removal Procedure Step Procedure 10. Remove axial flow blade Axial flow blade Remove the nut on the blade and then remove the axial flow blade. 11. Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor.
  • Page 63 11. Removal Procedure Step Procedure 13. Remove 4-way valve assy 4-way valve assy Remove screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric box upwards to remove it. 14. Remove valve support sub-assy and expansion valve assy Expansion valve assy Remove the screw connecting the valve support and...
  • Page 64 11. Removal Procedure Step Procedure 16. Remove compressor Compressor Remove the 3 foot nuts fixing the compressor and then remove the compressor. 17. Remove condenser assy Condenser assy Support Remove the screws fixing the condenser support and then remove the condenser support. Remove the screws connecting the condenser support and the chassis assy, and then remove the condenser assy.

  • Page 65: Appendix

    Appendix Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature（℉） temperature（℉） temperature（℉） （℉） （℃） （℉） （℃） （℉） （℃）...

  • Page 66: Appendix 2: Pipe Expanding Method

    Appendix Appendix 2: Pipe Expanding Method Pipe Note: Improper pipe expanding is the main cause of refrigerant leakage.Please expand Pipe cutter the pipe according to the following steps: A:Cut the pip Leaning Uneven Burr ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 67: Appendix 3: List Of Resistance For Temperature Sensor

    Appendix Appendix 3: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98...
  • Page 68 Appendix Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233 129.9...
  • Page 69 Appendix Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6 73.83 14.62 3.96...
  • Page 70 CAPACITY CURVES ARGO MULTISPLIT...
  • Page 71 Do not release R32 into the atmosphere. DUAL 14 DCI R32 - Kg. 0,75 = Tonn CO equiv. 0,51 DUAL 18 DCI R32 - Kg. 0,90 = Tonn CO equiv. 0,61 TRIAL 21 DCI R32 - Kg. 1,60 = Tonn CO equiv.

This manual is also suitable for:

Dual 14 dci r32Trial 21 dci r32Trial 24 dci r32Quadri 28 dci r32

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