Air-Con A16CM4H4R18 Service Manual

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Service Manual

A16CM4H4R18

A16CM4H4R24

A16CM4H4R36

A16CM4H4R39

A16CM4H4R42

AIR-CON INTERNATIONAL, INC.

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Summary of Contents for Air-Con A16CM4H4R18

Page 1 Change for Life Service Manual A16CM4H4R18 A16CM4H4R24 A16CM4H4R36 A16CM4H4R39 A16CM4H4R42 AIR-CON INTERNATIONAL, INC.
Page 3 A16CM4H4R18 A16CM4H4R24 A16CM4H4R36 A16CM4H4R39 A16CM4H4R42...
Page 4 Installing, starting up, and servicing air conditioner can be Make sure the outdoor unit is installed on a stable, level hazardous due to system pressure, electrical components, surface with no accumulation of snow, leaves, or trash and equipment location, etc. beside.
Page 5 A16CM4H4R18 A16CM4H4R24...
Page 6 A16CM4H4R36 A16CM4H4R39 A16CM4H4R42...
Page 7 A16CM4H4R18 A16CM4H4R24 A16CM4H4R36...
Page 8 A16CM4H4R39 A16CM4H4R42 1015 1087...
Page 9 A16CM4H4R18 A16CM4H4R24 A16CM4H4R36 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...
Page 10 A16CM4H4R39 A16CM4H4R42 Schematic Diagram of Free Match Series Inverter Heat Pump System Heat Exchanger Liquid Receiver Four-way Valve Capillary Oil Separator Outdoor Uint Stop Valve Compressor Gas/Liquid Separator Electronic Expansion Valve Heating Cooling Indoor Uint Heat Exchanger Heat Exchanger Heat Exchanger Heat Exchanger Heat Exchanger Schematic Diagram of Free Match Series Inverter Heat Pump System...
Page 11 GROUND TO EARTH A16CM4H4R18 14WH 13WH COMP. LX1-1 LX1-2 BN:BROWN WH:WHITE WARNING BU:BLUE YE:YELLOW Please don't touch any terminal when the voltage BK:BLACK RD:RED of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electrical shock!
Page 12 A16CM4H4R24 AC-L E(PE) LX2-2 LX2-1 COMP WARNING Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electrical shock! A16CM4H4R36 AC-L E(PE) LX2-2 LX2-1 COMP WARNING...
Page 13 A16CM4H4R39 POWER OUTDOOR UNIT OVERLOAD PROTECTOR AC-L EKV1 RT12/13 IN/OUT PIPE TEMP. SENSOR D RT10/11 IN/OUT PIPE TEMP. SENSOR C N(1) EKV2 N(1) RT8/9 IN/OUT PIPE TEMP. SENSOR B RT6/7 IN/OUT PIPE TEMP. SENSOR A EKV3 DISCHARGE TEMP.SENSOR ENVIRONMENT TEMP.SENSOR N(1) N(1) EKV4...
Page 14 A16CM4H4R18 Compressor interface Unit A liquid valve and gas valve Unit B liquid valve and gas valve Compressor overload protector Temperature sensor Compressor electric heater Outdoor fan 4-way valve Chassis electric heater (reserved) Unit A electronic expansion valve Unit B electronic...
Page 15 A16CM4H4R24 A16CM4H4R36 Compressor interface Temperature sensor interface of unit A liquid valve and gas valve Temperature sensor interface of unit B liquid valve and gas valve Temperature sensor interface of unit C liquid valve and gas valve Temperature sensor interface of unit D liquid valve and gas valve Temperature sensor interface...
Page 16 A16CM4H4R39...
Page 17 A16CM4H4R42 FA-FE: Teminals of EXV(Electronic expansion Valve) 12 E1:Teminals of Earth JUMP2:the code of capcity 13 AC-L:Teminals of line wire SA1: Master select switch 14 FUSE1: Fuse T-SENSOR2:Teminals of temperature sensor 15 N:Teminals of neureal wire TUBE-A - TUBE-E:Teminals of tube temperature sensor 16 HEAT:Teminals of compressor band heater OVC-COMP:Teminals of overload protector 17 L1-1:Teminals of reactor's brown wire...
Page 19 A16CM4H4R18 A16CM4H4R24 A16CM4H4R36 1 Basic functions of the system 1.1 Cooling Mode 1.1.1 Cooling conditions and process: If the compressor is in stop status and start the unit for cooling operation, when one of the indoor units reaches the cooling operation condition, the unit start cooling operation;...
Page 20 1.3.3 Outdoor fan control in heating mode The outdoor fan starts before 5s of the starting of compressor and then it will run in high speed for 40s; The fan shall run at every speed for at least 80s; When the compressor stops, the outdoor fan stops after 1min. 1.3.4 Defrosting function When the defrosting condition is met, the compressor stops;...
Page 21 2.4 Communication malfunction Detection of the quantity of installed indoor units: After 3min of energizing, if the outdoor unit does not receive the communication data of certain indoor unit, the outdoor unit will judge that indoor unit is not installed and will treat it as it is not installed. If the outdoor unit receives the communication data of that indoor unit later, the outdoor unit will treat that unit as it is installed.
Page 22 A16CM4H4R39 A16CM4H4R42...
Page 23 master/slave...
Page 24 A16CM4H4R18 Warning Be sure to cut off the power supply before cleaning the air conditioner; otherwise electric shock might happen. Wetting of air conditioner may cause the risk of electric shock. Make sure not to wash your air conditioner in any case.
Page 25 Location Use bolts to secure the unit to a flat, solid floor. Tighten the connections using two wrenches working When mounting the unit on a wall or the roof, make in opposite directions. sure the support is firmly secured so that it cannot Caution: Installation Must be Performed in Accordance move in the event of intense vibrations or a strong with the NEC/CEC by Authorized Personnel Only.
Page 26 When picking up and moving the units, you must be guided by trained and qualified person. Ensure that the recommended space is left around the a ppliance . A16CM4H4R18 50cm or more Space to the cover 30cm or above...
Page 27 A16CM4H4R18 1. R emove the handle at the right side plate of the A16CM4H4R18 outdoor unit (six screw). Remove the cable clamp, connect the connection cable and power cable with the terminal at the row of connection and fix. the connection. The fitting line distributing must be consistent with the indoor unit.
Page 28 A16CM4H4R24 1. Remove the handle at the right side plate of the outdoor unit (ten screw). Remove the cable clamp, connect the connection cable and power cable with the terminal at the row of connection and fix the connection. The fitting line distributing must be consistent with the indoor unit.
Page 29 A16CM4H4R36 connection cable Remove the handle at the right side plate of the outdoor unit (ten screw). connection cable Remove the cable clamp, connect the connection cable and connection cable power cable with the terminal at the row of connection and fix the connection.
Page 30 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 dropping sufficient? Is the drainage smooth? May cause condensation and water dropping...
Page 31 (A16CM4H4R39 & A16CM4H4R42) Safety Precautions Please read this manual carefully before using and operating correctly as instructed in this manual. Safety Precautions Please especially take notice of the following two symbols: Please read this manual carefully before using and operating correctly as instructed in this manual. Safety Precautions Please especially take notice of the following two symbols: Please read this manual carefully before using and operating correctly as instructed in this manual.
Page 32 Warning! It indicates improper operation which will lead to human casualty or severe injury. Caution! It indicates improper operation which will lead to injury or property damage. AIR-CON service center. Warning! The installation should be committed to the appointed service center; otherwise it will cause water or special circumstances;...
Page 33 A16CM4H4R39 OUTDOOR UNIT INDOOR UNIT C INDOOR UNIT D INDOOR UNIT A A16CM4H4R42 OUTDOOR UNI T INDOOR UNIT E INDOOR UNIT D INDOOR UNIT C INDOOR UNIT B INDOOR UNIT A...
Page 34 8) Rubber or spring shock absorbers should be used during the installation of the outdoor unit to meet the 8) Rubber or spring shock absorbers should be used during the installation of the outdoor unit to meet the noise and vibration requirements. noise and vibration requirements.
Page 35 ＞1000 ＞500 ＞2000 ＞500 ＞2000 Safety Precautions Please read this manual carefully before using and operating correctly as instructed in this manual. Please especially take notice of the following two symbols: (1). Wiring of the Power Cord Warning! It indicates improper operation which will lead to human casualty or severe injury. CAUTION! A breaker must be installed, capable of cutting off the power supply for the whole system.
Page 36 2). The sum of the capacity codes of the indoor units should be among 50%-150% of that of the outdoor unit. (3). Allowable Length and Height Fall of the Refrigerant Pipe Outdoorunit Equivalent length of the farthest fitting pipe L Indoor unit Indoor unit Allowable Length...
Page 37 Ordinary 4). The bending degree of the pipe can not be too small; otherwise it will crack. And please use a pipe tube bender to bend the pipe. 5). Wrap the exposed refrigerant pipe and the joints by sponge and then tighten them with the plastic tape.
Page 38 Manometer Manometer “HI” knob “LO” knob Manometer Manometer Liquid Valve Vacuum pump “HI” knob “LO” knob Manometer Manometer Liquid Valve Vacuum pump “HI” knob “LO” knob Manometer Manometer Liquid Valve Hose Vacuum pump “HI” knob “LO” knob Gas Valve 4) Make sure the system has no leakage. When compressor is not working, fill a set amount of R410a refriger Liquid Valve Hose Vacuum pump...
Page 39 Indoor Unit Serial No. Model A16EM4H4R09 Indoor Unit A16EM4H4R09 Indoor Unit A16EM4H4R09 Indoor Unit A16EM4H4R09 Indoor Unit A16EM4H4R18 Indoor Unit Liquid Refrigerant Pipe Serial No. Liquid Refrigerant Pipe φ6.35 φ6.35 φ6.35 φ6.35 φ9.52 Diameter Serial No. Length φ6.35 φ6.35 φ6.35 φ6.35 φ9.52 Diameter...
Page 40 Φ12.7 Φ9.52 Φ6.35 Total (4). Items to be checked after the Installation Items to be Checked Possible Errors Check Results Has each part and component of the unit been The unit may fall off, vibrate or generate installed securely? noise. The cooling (heating) capacity may be Has the gas leakage test been taken? poor.
Page 41 A16CM4H4R18...
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Page 47 A16CM4H4R39 33 32 31 30 29 28 27...
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Page 49 A16CM4H4R42 A16CM4H4R42...
Page 51 A16CM4H4R18 A16CM4H4R24 A16CM4H4R36 ○ ● Note: : off : on : blink When several malfunctions occur at the same time, they will be displayed in circulation and every malfunction is displayed for 5s. Malfunction description LED1 LED2 LED3 LED4 ○...
Page 52 ● ● ● Communication failure with Unit A ● ● Communication failure with Unit B ○ ○ ● Communication failure with Unit C ● ○ ● Communication failure with Unit D ○ ● Unit A freeze protection ○ ● ● Unit B freeze protection ●...
Page 53 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. if the pressure of the system is too high; 4.
Page 54 (2) PFC protection malfunction Main checking points: If the power supply is normal; ● Check if the connection wire of induction is connected well and if the induction is broken; ● Flow chart: Start Check If the power supply is normal Turn on the unit after the power supply resumes to Power supply is abnormal...
Page 55 (3) 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: Energize the unit and wait for 1min Test the voltage between the two ends of the electrolytic capacitor with the DC shift of the universal meter...
Page 56 (4) Anti-high temperature and overload malfunction Main checking points: If the outdoor ambient temperature is within the normal range; ● ● If the outdoor fan is 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 57 (5) 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 58 (6) 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: Energize and start the unit If the stop duration of the compressor...
Page 59 (7) 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 De-energize,check the connection...
Page 60 All the indoor units appear communication malfunction De-energize,check 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 Reconnect according to...
Page 61 (8) Compressor overload, diacharge 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 62 (9) 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 than 3min?
Page 63: Troubleshooting
Warning! It indicates improper operation which will lead to human casualty or severe injury. Caution! It indicates improper operation which will lead to injury or property damage. AIR-CON Do not repair the air conditioning personally but instead contact the professionally skilled Warning! The installation should be committed to the appointed service center;...
Page 64 2) Problem Handling 2) Problem Handling 2) Problem Handling Conditions Causes Conditions When restart the unit soon after it is The overload protection switch of the unit stopped. let the startup delayed for three minutes. The unit does When restart the unit soon Conditions Causes not run...
Page 65 High Discharge Flash 4 times Outdoor Temp Protection Outdoor & Communication Error Flash 6 times Indoor Indoor Unit Water Flash 9 times Indoor Full Error Refrigerant Quick Quick Special Mode Recovery Mode Flashing Flashing Outdoor Ambient Flash 3 times Outdoor Temp Sensor Error Outdoor Mid-Coil Flash 4 times...
Page 66 Flash 21 Flash 21 Low Voltage Protection Low Voltage Protection Drive Error Drive Error times times Temp Drift Protection Temp Drift Protection Flash 3 times Flash 3 times Flash 3 times Flash 3 times Flash 3 times Flash 3 times Drive Error Drive Error Drive Board Ambient...
Page 67 Outdoor Ambient Flash 3 times Outdoor Temp Sensor Error Outdoor Mid-Coil Flash 4 times Outdoor Temp Sensor Error Outdoor Discharge Air Flash 5 times Outdoor Temp Sensor Error Oil Return for Cooling Flash 7 times Special Mode Quick Forced Defrosting Special Mode Flashing Oil Return for Heating...
Page 68 Unit n indoor pipe midway temperature Flash twice Indoor Table 16 sensor error Indoor Evaporator Temp Sensor Short/ Flash twice Indoor Table 16 Open-Circuit (Air Valve) Unit n indoor unit pipe Flash 22 times Indoor outlet temperature Table 16 sensor error (Liquid Valve) Unit n indoor pipe Flash 19 times...
Page 69 4) After-Sales Service If there is any quality or other issue, place contact the GREE after-sales service center. AIR-CON Flow Chart of Troubleshooting Service personnel shall collect the malfunction information as much as possible and research them...
Page 70 Malfunction display: E1 Compressor High Pressure Protection High pressure protection Replace the outdoor Check if the pressure is really high pressure with the Check if pressure switch unit mainboard is abnormal measurement of a manometer Replace pressure switch Refer to Instruction Check if operation mode of indoor unit is Manual of indoor unit properly set...
Page 71 Malfunction display: E3 Compressor Low Pressure Protection Compressor Low Pressure Protection Check if the pressure is really low pressure Refer to the high pressure with the measurement of a manometer protection Charge refrigerant according to the amount Check if the refrigerant in the specified in the nameplate and calculated system is sufficient additional amount...
Page 72 Malfunction display: E4 Compressor Exhaust High Temperature Protection Discharge temperature protection Measure if temperature sensor’s Measure if compressor’s discharge Replace relevant discharge resistance value is correct temperature has reached 115℃ temperature sensor System pipeline leaks so complementation is needed. Replace the outdoor Please add refrigerant according to the amount unit mainboard specified in the nameplate...
Page 73 Malfunction display: E9 Full Water Protection Full Water Protecti o Check if the voltage of liquid Replace the main board of Check if water overflow level switch end is ok the indoor uint Check the liquid level switch Check if the water drainage Check if the voltage of water Replace the main board of pump works...
Page 74 Malfunction display: F3 Failure of Outdoor Ambient Sensor Failure of outdoor Ambient sensor Check the direction of the plug Check if the plug of the temperature sensor is correctly and socket connected with socket on the mainboard Remove the sensor to check if the resistance value is ok Replace temperature sensor Replace mainboard of the indoor uint Malfunction display: F5 Failure of Exhaust Temp.
Page 97 Disassembly and Assembly of Outer Casing Steps Procedure 1. Disassemble the cover plate ① Remove the fixed screws on the cover plate by using a screwdriver. ② Remove the cover plate. 2. Disassemble the front panel ① Remove the fixed screws on the front panel by using a screwdriver.
Page 98 Steps Procedure 4. Dismount the grille ① Remove the fixed screws on the grille by using a screwdriver. ② Remove the grille. 5. Disassemble the outer casing ① Remove the fixed screws on the outer casing by using a screwdriver. ②...
Page 99 Steps Procedure 7． Assemble the disassembled main parts as per the reverse disassembly order mentioned above Assemble the disassembled main parts as per the reverse disassembly order mentioned above and energize the unit for trial test. Disassembly and Assembly of Compressor Remark: Make sure that there is no refrigerant in pipe system and the power supply is cut off before disassembling the compress or.
Page 100 Steps Procedure 3. Take down the bad compressor ① Remove the bolts on the compressor by using a tool. ② Take down the bad compressor from the bottom plate. 4. Place the new compressor on the bottom plate and connect the suction inlet and discharge outlet with the pipe system ①...
Page 101 Steps Procedure 2. Disconnect the 4-way valve and the connected pipe by soldering. Take down the bad 4-way valve. Disconnect the 4-way valve and the connected pipe by a welding gun. Take down the bad 4-way valve. 3. Replace the 4-way valve and reconnect it with the pipeline. ①...
Page 102 Disassembly and Assembly of Electronic Expansion Valve Steps Procedure 1. Remove the electronic expansion valve coil Remove the electronic expansion valve coil by rotating it until the lock is unfixed. 2． Disconnect the electronic expansion valve and the connected pipe by soldering Disconnect the electronic expansion valve and the connected pipe by a welding gun.
Page 103 Disassembly and Assembly of Vapour Liquid Separator Steps Procedure 1. Disconnect the liquid separator and the connected pipeline Disconnect the liquid separator and the connected pipeline. 2. Remove the liquid separator ① Remove the bolt fixing the liquid separator by a tool. ②...
Page 104 E-mail: techsupport@airconint.com www.airconint.com For other manuals and information find our Technical Support Wiki at www.airconint.com/wiki For continuous improvement in the products, Air-Con reserves the right to modidy the product specification and appearance in this manual without notice and without incurring any obligations.

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A16cm4h4r24 A16cm4h4r36 A16cm4h4r39 A16cm4h4r42