MAFX/GRFX DC INVERTER

Transcription

1 Condizionatore d aria split - Split air conditioner Climatiseur split Split-klimagerät - Acondicionador de aire split MAFX/GRFX DC IVERTER SERVICE MAUAL

2 Model -- MAFX93 MAFX123 Indoor unit model -- MAFX93R5I MAFX123R5I Product Code Rated Voltage V~ Rated Frequency Hz Phases Power Supply Mode -- Indoor Indoor Cross-sectional Area of Power Cable Conductor mm 2 1,50 1,50 Recommended Power Cable(Core) 3 3 Min/Max. Voltage V 198/ /264 Cooling Capacity W Cooling Capacity Btu/h Min. Cooling Capacity W Min. Cooling Capacity Btu/h Max. Cooling Capacity W Max. Cooling Capacity Btu/h Pdesignc kw 2,70 3,50 Heating Capacity W Heating Capacity Btu/h Min. Heating Capacity W Min. Heating Capacity Btu/h Max. Heating Capacity W Max. Heating Capacity Btu/h Pdesignh(Average) kw 2,80 3,20 Pdesignh(Warmer) kw / / Pdesignh(Colder) kw / / Cooling Power Input W Min. Cooling Power Input W Max. Cooling Power Input W Heating Power Input W Min. Heating Power Input W Max. Heating Power Input W Rated Input W Standby power consumption W 1 1 Cooling Current Input A 3,80 5,20 Heating Current Input A 3,92 5,30 Rated Cooling Current A 7 7 Rated Heating Current A 6 6 Max. Over Current Protection A Min. Current(MCA) A Starting Current A 8 8 EER W/W 3,10 2,99 EER (Btu/h)/W 10,59 10,21 COP W/W 3,11 3,33 COP (Btu/h)/W 10,62 11,38 R -- SEER -- 5,60 6,10 HSPF -- SCOP(Average) -- 3,80 4,00 SCOP(Warmer) -- SCOP(Colder) -- AEER -- ACOP -- APF W/W Energy Class -- A+/A A++/A+ Air Flow Volume(SS) m 3 /h Air Flow Volume(SS) CFM Air Flow Volume(H) m 3 /h Air Flow Volume(H) CFM Air Flow Volume(MH) m 3 /h / / Air Flow Volume(MH) CFM / / Air Flow Volume(M) m 3 /h Air Flow Volume(M) CFM Air Flow Volume(ML) m 3 /h / / Air Flow Volume(ML) CFM / / Air Flow Volume(L) m 3 /h Air Flow Volume(L) CFM Air Flow Volume(SL) m 3 /h / / Air Flow Volume(SL) CFM / / Dehumidifying Volume L/h 0,80 1,40 Dehumidifying Volume Pint/h 1,69 2,96 Application Area m Remote Controller Model -- B1FA(XFA) B1FA(XFA) Indoor Unit Fan Type -- Cross-flow Cross-flow Indoor Unit Fan Diameter Length(D L) mm Indoor Unit Fan Diameter Length(D L) inch

3 Model -- MAFX93 MAFX123 Cooling Speed r/min 1260/1050/900/ /1070/900/690 Heating Speed r/min 1320/1200/1000/ /1050/980/920 Indoor Unit Fan Motor Power Output W Indoor Unit Fan Motor RLA A 0,10 0,10 Indoor Unit Fan Motor Capacitor µf 1 1 Heater Power Input W / / Evaporator Form -- Aluminum Fin-copper Tube Aluminum Fin-copper Tube Evaporator Pipe Diameter mm φ7 φ7 Evaporator Pipe Diameter inch Evaporator Row-fin Gap mm Evaporator Row-fin Gap inch Evaporator Coil Length (L D W) mm Evaporator Coil Length (L D W) inch Swing Motor Model -- MP24AA MP24AA Swing Motor Power Output W 2 2 Fuse Current A 3,15 3,15 Set Temperature Range 16~30 16~30 Set Temperature Range 61~86 61~86 Indoor Unit Sound Pressure Level (SS) db (A) Indoor Unit Sound Pressure Level (H) db (A) Indoor Unit Sound Pressure Level (MH) db (A) / / Indoor Unit Sound Pressure Level (M) db (A) Indoor Unit Sound Pressure Level (ML) db (A) / / Indoor Unit Sound Pressure Level (L) db (A) Indoor Unit Sound Pressure Level (SL) db (A) / / Indoor Unit Sound Power Level (SS) db (A) Indoor Unit Sound Power Level (H) db (A) Indoor Unit Sound Power Level (MH) db (A) / / Indoor Unit Sound Power Level (M) db (A) Indoor Unit Sound Power Level (ML) db (A) / / Indoor Unit Sound Power Level (L) db (A) Indoor Unit Sound Power Level (SL) db (A) / / Indoor Unit Dimension (W) mm Indoor Unit Dimension (W) inch 33 1/4 33 1/4 Indoor Unit Dimension (H) mm Indoor Unit Dimension (H) inch 10 5/6 10 5/6 Indoor Unit Dimension (D) mm Indoor Unit Dimension (D) inch 7 7 Indoor Unit Dimension of Carton Box (L) mm Indoor Unit Dimension of Carton Box (L) inch Indoor Unit Dimension of Carton Box (W) mm Indoor Unit Dimension of Carton Box (W) inch Indoor Unit Dimension of Carton Box (H) mm Indoor Unit Dimension of Carton Box (H) inch Indoor Unit Dimension of Package(L) mm Indoor Unit Dimension of Package(L) inch 36 1/7 36 1/7 Indoor Unit Dimension of Package(W) mm Indoor Unit Dimension of Package(W) inch 10 1/6 10 1/6 Indoor Unit Dimension of Package(H) mm Indoor Unit Dimension of Package(H) inch 14 4/7 14 4/7 Indoor Unit Stacked Layers - Indoor Unit et Weight kg 9 9 Indoor Unit et Weight lb 19,8 19,8 Indoor Unit Gross Weight kg Indoor Unit Gross Weight lb 26,5 26,5 Outdoor unit model -- GRFX93R5I GRFX123R5I Product Code Compressor Trademark -- GREE GREE Compressor Manufacturer -- ZHUHAI LADA ZHUHAI LADA Compressor Model -- QXA-A091zE190A QXA-A091zE190A Compressor Oil -- 68EP 68EP Compressor Type -- Rotary Rotary Compressor Locked Rotor Amp (L.R.A) A 16,50 16,50 Compressor Rated Load Amp (RLA) A 4,90 4,90 Compressor Power Input W Compressor Overload Protector -- 1T11L T11L-6233

4 Model -- MAFX93 MAFX123 Outdoor Unit Fan Type -- Axial-flow Axial-flow Outdoor Unit Fan Diameter mm Outdoor Unit Fan Diameter inch 15 3/4 15 3/4 Outdoor Unit Fan Motor Speed rpm 900/ /660 Outdoor Unit Fan Motor Power Output W Outdoor Unit Fan Motor RLA A 0,15 0,15 Outdoor Unit Fan Motor Capacitor µf / / Outdoor Unit Air Flow Volume m 3 /h Outdoor Unit Air Flow Volume CFM Condenser Form -- Aluminum Fin-copper Tube Aluminum Fin-copper Tube Condenser Pipe Diameter mm φ7 φ7 Condenser Pipe Diameter inch Condenser Rows-fin Gap mm Condenser Rows-fin Gap inch Condenser Coil Length (L D W) mm Condenser Coil Length (L D W) inch Permissible Excessive Operating Pressure for MPa 4,3 4,3 Permissible Excessive Operating Pressure for MPa 2,5 2,5 Maximum Allowable Pressure MPa 4,3 4,3 Cooling Operation Ambient Temperature Range 18~43 18~43 Cooling Operation Ambient Temperature Range 64~109 64~109 Heating Operation Ambient Temperature Range -7~24-7~24 Heating Operation Ambient Temperature Range 19~75 19~75 Throttling Method -- Electron expansion valve Electron expansion valve Defrosting Method -- Automatic Defrosting Automatic Defrosting Climate Type -- T1 T1 Climate Zone -- Temperate Zone Temperate Zone Isolation -- I I Moisture Protection -- IP24 IP24 Outdoor Unit Sound Pressure Level (H) db (A) Outdoor Unit Sound Pressure Level (M) db (A) / / Outdoor Unit Sound Pressure Level (L) db (A) / / Outdoor Unit Sound Power Level (H) db (A) Outdoor Unit Sound Power Level (M) db (A) / / Outdoor Unit Sound Power Level (L) db (A) / / Outdoor Unit Dimension (W) mm Outdoor Unit Dimension (W) inch 30 5/9 30 5/9 Outdoor Unit Dimension (H) mm Outdoor Unit Dimension (H) inch 21 1/4 21 1/4 Outdoor Unit Dimension (D) mm Outdoor Unit Dimension (D) inch 12 3/5 12 3/5 Outdoor Unit Dimension of Carton Box (L) mm Outdoor Unit Dimension of Carton Box (L) inch 33 2/5 33 2/5 Outdoor Unit Dimension of Carton Box (W) mm Outdoor Unit Dimension of Carton Box (W) inch 14 1/6 14 1/6 Outdoor Unit Dimension of Carton Box (H) mm Outdoor Unit Dimension of Carton Box (H) inch 22 5/6 22 5/6 Outdoor Unit Dimension of Package(L) mm Outdoor Unit Dimension of Package(L) inch 33 1/2 33 1/2 Outdoor Unit Dimension of Package(W) mm Outdoor Unit Dimension of Package(W) inch 14 2/7 14 2/7 Outdoor Unit Dimension of Package(H) mm Outdoor Unit Dimension of Package(H) inch 23 3/7 23 3/7 Outdoor Unit Stacked Layers - Outdoor Unit et Weight kg Outdoor Unit et Weight lb 61,7 63,9 Outdoor Unit Gross Weight kg Outdoor Unit Gross Weight lb 70,6 72,8 Refrigerant -- R410A R410A Refrigerant Charge kg 0,70 0,85 Refrigerant Charge oz 24,7 30,0 Connection Pipe Length m 5 5 Connection Pipe Length ft 16,4 16,4 Connection Pipe Gas Additional Charge g/m Connection Pipe Gas Additional Charge oz/ft. 0,2 0,2 Outer Diameter of Liquid Pipe inch 1/4 1/4 Outer Diameter of Gas Pipe inch 3/8 3/8 Max Distance Height m Max Distance Height ft 32,8 32,8 Max Distance Length m Max Distance Length ft 49,2 49,2 The above data are subject to change without notice. Please refer to the nameplate on the unit.

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6 1 Cooling 10 Heating K 6 12K Current(A) K Current(A) K Condition Indoor:DB 27 WB19 Indoor air flow: Turbo Pipe length:5m Voltage:230V 2 1 Condition Indoor:DB 20 Indoor air flow:turbo Pipe length:5m Voltage:230V Compressor Speed(rps) Compressor Speed(rps) 2 Cooling 110 Heating Capacity ratio(%) Condition Indoor:DB27 WB19 Indoor air flow: Turbo Pipe length:5m Capacity ratio(%) Condition Indoor:DB20 Indoor air flow: Turbo Pipe length:5m Outdoor temp. ( C) Outdoor temp. ( C) 5

7 3 Indoor side noise when blowing 45 Outdoor side noise when Compressor speed changed oise/db(a) oise/db(a) K 12K 25 Supper High High Middle Low Indoor fan motor rotating speed Compressor Speed(rps) 4 6

8 Φ55 Φ

9 IDOOR UIT OUTDOOR UIT 4-Way valve HEAT EXCHAGER (EVAPORATOR) Compressor Accumlator HEAT EXCHAGER (EVAPORATOR) Strainer Electron expansion valve Strainer COOLIG HEATIG 8

10 ROOM TEM.SESOR θ RT1 TUBE TEM.SESOR θ RT2 DISPLA AP1 C1 C2 L1 L1 POWER B L EG BU ROOM CAP JUMP TUBE AP2 DISP-1 DISP-2 AC-L COM-OUT L-OUT K4 W1 BU W2 BK W3 B W4 EG XT1 (1) 2 3 BU BK B EG OUTDOOR UIT EVAPORATOR PE PGF PG SWIG-UD HEALTH-LHEALTH- M FA MOTOR M SWIG MOTOR(U.D) RD BU COOL PLASMA GEERATOR EG PE 9

11 I D O R U T I BU BK B EG PE XT (1) 2 3 L1 L1 MID.ISOLATIO SHEET PE PE EG AP1 PE C1 BU BK COM-OUT 1 BU B AC-L AC-L1 B ELECTRIC BOX PE EG TUBE OUTROOM EXHAUST TEM.SESOR TEM.SESOR TEM.SESOR RT1 RT2 RT3 θ θ θ AC- AC-L L2 C2 C3 BU U V W L2 E RD L2 4V 4V BU E RD U V EG W COMP. E COMP AP2 L4 OFA M L L3 BU B LX1-1 LX1-2 FA EG PE C1 AC-L2 AC-L3 AC-1 AC-2 OVC-COMP SAT EKV RD OTE: Motor ground only applies to the iron shell motor. B BU 0

12 TOP VIEW Port of neutral wire Solid-state relay Live wire of health function Port of indoor fan Auto button Feedback of indoor fan Port of motor for vertical swing Protective tube Port of motor for horizontal swing Buzzer Port of indoor ambient temp sensor Port of indoor pipe temp sensor Power of switch Port of display BOTTOM VIEW High-frequency transformer Communication port Main chip 1

13 inductance pin1 inductance pin2 fan neilsbed four-way valve compressor electric heater chassis electric heater 10-core communication cable compressor temp. sensor overload protection electric expansion valve 2

14 1. Temperature Parameters Indoor preset temperature (T preset ) Indoor ambient temperature (T amb. ) 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag; if the compressor is in operation before de-energization, the compressor will be started with a 3-minute lag; and once started, the compressor will not be stopped within 6 minutes regardless of changes in room temperature; (1)COOL mode The condition and process of cooling If Tamb. Tpreset COOL mode will act, the compressor and outdoor fan will run, and the indoor fan will run at the set speed. If Tamb. Tpreset-2, the compressor will stop, the outdoor fan will delay 30 seconds to stop, and the indoor fan will run at the set speed. If Tpreset-2 Tamb Tpreset, the unit will keep running in the previous mode. In this mode, the reversal valve will not be powered on and the temperature setting range is 16 ~30. Tpreset Tpreset 2 C Compressor Outdoor fan Indoor fan Tamb. 6 min. 3 min. 6 min. Setting fan speed Start cooling Original operating status Stop cooling Protection function Overcurrent protection If total current is high, the compressor will run in limited frequency. If total current is too high, the compressor will stop, the outdoor fan will delay 30 seconds to stop, indoor unit will display E5 and outdoor yellow light will blink 5 times. Antifreezing protection When the antifreezing protection is detected, the compressor will stop, the outdoor fan will stop after 30 seconds, and the indoor fan and swing motor will keep running in the original mode. When antifreezing protection is eliminated and the compressor has stopped for 3 minutes, the compressor will resume running in the original mode. Compressor Run During antifreeze protection min Stop Outdoor fan Indoor fan Preset speed Run (2) Dehumidifying Mode Working conditions and process of dehumidifying If T amb. T preset, the unit will enter cooling and dehumidifying mode, in which case the compressor and the outdoor fan will operate and the indoor fan will run at low speed. If T preset -2 T amb. T preset, the compressor remains at its original operation state. If T amb.< T preset -2, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will operate at low speed. Protection Protection is the same as that under the cooling mode. Stop 3

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16 15

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18 heating angle O(0 ) cooling angle O(0 ) L A B C D L1 A1 B1 C1 D1 17

19 18

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21 0

22 Space to the ceiling 15cm Above Space to the wall 15cm Above 15cm Above Space to the wall 300cm Above Air outlet side cm Above Space to the floor The dimensions of the space necessary for proper installation of the unit includ e the minimum permissible distances to adjacent parts. Space to the obstruction 50cm Above Air inlet side 30cm Above 30cm Above Space to the wall 200cm Above Space to the wall 50cm Above Air outlet side S chematic diagram being reference only (outdoor unit is with variation ), p lease refer to real product for authentic information. 1

23 Wall Wall Above 150 from the ceiling Wall Above 150 from the wall Φ55 Φ55 Above 150 from the wall Left Right Indoor Wall pipe Outdoor Seal pad outlet pipe of indoor unit outlet pipe of drain hose indoor unit rubber belt outlet pipe of drain hose indoor unit rubber belt insulating tube rubber belt outlet pipe of indoor unit bulge Wiring Cover connected insulating tube distortion Flooded (1) 2 3 blue black brown yellowgreen outdoor unit connection Fig.2 2

24 Tailing 2 Tailing 1 Fig.3 Right Right rear Fixing hook Mounting plate Gas side pipe Gas side piping insulation Finally wrap it with tape Left Left rear Fig.4 Water drainage pipe Mounting plate External connection electric wire Liquid side piping Liquid side Piping insulation Fig.5 Indoor unit piping Spanner Taper nut Piping Torque wrench Handle (1) 2 3 Brown Black ellow-green Blue power connection cord 3

25 Low pressure valve Manifold Valve Multimeter -76cmHg Manometer Lo Handle Fig.6 Hi handle Charging hose Vacuum pump Drain-water hole Bottom frame Drain connecter Hose (available commercially, inner dia. 16mm) 4

26 Fig.a Air filter Fig.b Healthy filter Fig.c 25

27 8 8 Trip of breaker or The breaker trips at once when it is set to O. Measure insulation resistance to ground to see if there is any leakage. Air conditioner can not start up blow of fuse The air conditioner does not react after it is powered ( after the plug is inserted, the buzzer does not sound and the remote startup has no response) The breaker trips in few minutes when it is set to O. o power Power plug is not well plugged in and poor connection. Fuse of controller burnt out The transformer connection is loose or has bad contact or the transformer has malfunction. The circuit or the part of the air conditioner has malfunction. They heat and break the insulation and lead to short circuit or creepage. Measure the insulation resistance or eliminate the malfunction one by one. If the breaker itself has malfunction, then replace the breaker. Check power supply circuit. Check if the plug is properly plugged in and make the loose contact firm. Change controller fuse Fasten the wiring; measure the output voltage of the transformer, if it is incorrect, change the transformer. Controller is broken Check remote controller Remote controller is short of power Change batteries The remote controller does not receive signals (after it is powered, the buzzer will sound, unless it has malfunction) Remote controller malfunction Receiver loose or poor connection Receiver is broken First, press the manual switch button AUTO,if there is no response,check based on the above methods. If it runs normally after pressing the button, check again whether the installation position and the connection wire of the reception head is correct. If it is correct,then replace the receiver or the remote controller. Power voltage is too low Check the voltage. If it is lower than 10% of the rated voltage, check the cause, improve the power supply condition and add the stabilized voltage power supply. 26

28 Improper set of temperature Adjust set temperature If cooling (heating) load is proper Check the forecasted load of cooling (heating) Malfunction of refrigerant flow The refrigerant has leakage or is insufficient Leakage between the high pressure and the low pressure inside the compressor Malfunction of four-way valve Check and fill the leakage, then vacuumize it and supplement the refrigerant as required Replace the compressor Replace the four-way valve Local block of capillary Replace the capillary Poor COOL(HEAT) operation Judge whether the system is blocked by observing the condensation of evaporator and the pressure value of the high Blockage of cooling system pressure manometer and take measures to deal with the system. Heat insulation for the connection Make sure that heat insulation for the thick and thin pipes pipes of the indoor unit and the outdoor unit is bad. is good. Heat insulation must also be provided for the joint andthe exposed part of the copper pipe. Block of outdoor heat exchanger surface of the heat Clean the dust accumulated on the exchanger. Air circulation is insufficient Air filter were blocked Fan speed was set too slow Fan rotation speed becomes low Clean the filter To set the fan speed to high or middle speed Capacitor damage Motor damage Replace the capacitor Replace the motor The installation position of the outdoor unit is not appropriate. Good ventilation must be provided for the installation position of the outdoor unit. The outdoor temperature is too high. The air tightness is not enough. People come in and out too frequently. There are heating devices indoors. Properly install the rainproof plate or the sunproof plate. If the maximum cool air still can not meet the requirement, it is suggested to replace the air conditioner. Keep certain air tightness indoors, try not to use electricalappliance with large quantity of heat 27

29 The indoor fan motor is burned or breaks or has the heat protector malfunction. Replace the fan motor or the defective part. The fan does not run when it is set to supply air. The built-in heat protector of the motor breaks frequently because the motor is abnormal. Wrong connection The fan capacitor has open circuit or is damaged. Replace the fan motor Make the correction connection based on the circuit drawing. Replace the fan capacitor of the same type and same specification. In the cooling and heating mode, the compressor runs, but the outdoor fan does not run. The outdoor fan motor is damaged. Wrong connection The outdoor fan capacitor is damaged. Replace the fan motor Make the correct connection based on the circuit drawing Replace the fan capacitor Malfunction of compressor Replace the compressor In the cooling and heating mode, the outdoor fan runs, but the compressor does not run. Breakage of running capacitor of compressor The voltage is too low or too high. Wrong wire connection Replace the capacitor Manostat is recommended. Connect the circuit diagram correctly The protector itself has malfunction. Use the multimeter to check whether the contact of the compressor is on when it is not overheated. If it is not on, then replace the protector The refrigerant is not enough or is too much. Adjust the volume of the refrigerant The compressor is too hot and leads to the action of the protector. The capillary is blocked and the temperature rises. The compressor does not run smoothly or is stuck. The air discharge valve is damaged Replace the capillary Replace the compressor The protector itself has malfunction. Replace the protector 28

30 The torque of the swing motor is not enough The swing fan does not run. Wrong connection The controller is damaged(ic2003 is damaged, the swing relay can not close, etc) First, check whether the connection is wrong. If no, replace the parts In cool, heat mode, the outdoor unit and compressor will not run. Controller malfunction (IC2003 broken, creepage of parallel capacitor of relay loop, relay is broken etc.) Wire loose or wrong connection Improper setting of temperature Change controller Correctly wire according to the drawing Adjust setting temp. Water leakage Drainage pipe blocked or broken Wrap of refrigerant pipe joint is not close enough. Change drainage pipe Re-wrap and make it tight. Fan of indoor unit contacts other parts Adjust fan location Foreign object in indoor unit Take out the foreign object Abnormal sound and shake Compressor shakes too much Touch of pipeline of outdoor unit Touch of inner plates Adjust support washer of compressor, and tighten loosen screws Separate the touching pipeline. 1. Tighten connect screw. 2. Stick absorbing clay between plates. Louver of outdoor unit touched outer case. Adjust location of louver. Abnormal sound inside compressor Change compressor 29

31 8 8 O. Malfunction ame Display Method of Indoor Unit Indicator Display (during Dual-8 blinking, O 0.5s and OFF Code 0.5s) Display Operation Cool Heating Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, O 0.5s and OFF 0.5s ellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator A/C status Possible Causes 1 High pressure protection of system E1 OFF 3s once During cooling and drying operation, except indoor fan operates, all loads stop operation. During heating operation, the complete unit stops. Possible reasons: 1. Refrigerant was superabundant; 2. Poor heat exchange (including and bad radiating environment ); Ambient temperature is too high Antifreezing protection In defect of refrigerant High discharge temperature protection of compressor E2 F0 E4 twice 4 times OFF 1S 3 times OFF 1S 7 times OFF 1S and blink 9 times During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. 1. Poor air-return in indoor unit; 2. Fan speed is abnormal; 3. Evaporator is dirty. 1.In defect of refrigerant; The Dual-8 Code Display will 2.Indoor evaporator temperature show F0 and the complete unit sensor works abnormally; stops. 3.The unit has been plugged up somewhere. During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop. Please refer to the malfunction analysis (discharge protection, overload). 5 Overcurrent protection E5 5 times OFF 1S 5 times During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop. 1. Supply voltage is unstable; 2. Supply voltage is too low and load is too high; 3. Evaporator is dirty. 6 Communication Malfunction E6 Always 6 O times During cooling operation, compressor stops while indoor fan motor operates. During heating operation, the complete unit stops. Refer to the corresponding malfunction analysis. 7 High temperature resistant protection E8 8 times OFF 1S 6 times During cooling operation: compressor will stop while indoor fan will operate. During heating operation, the complete unit stops. Refer to the malfunction analysis (overload, high temperature resistant). 8 EEPROM malfunction EE OFF 1S 15 times 11 times During cooling and drying operation, compressor will stop Replace outdoor control panel AP1 while indoor fan will operate; During heating operation, the complete unit will stop 9 Limit/ decrease frequency due to high temperature of module EU 6 times 6 times All loads operate normally, while operation frequency for compressor is decreased Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM Module of outdoor control the radiator is inserted tightly. If its no use, please replace control panel AP1. 10 Malfunction protection of jumper cap C5 15 times Wireless remote receiver and button are effective, but can not dispose the related command 1. o jumper cap insert on mainboard. 2. Incorrect insert of jumper cap. 3. Jumper cap damaged. 4. Abnormal detecting circuit of mainboard. 30

32 O. Malfunction ame Display Method of Indoor Unit Indicator Display (during Dual-8 blinking, O 0.5s and OFF Code 0.5s) Display Operation Cool Heating Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, O 0.5s and OFF 0.5s ellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator A/C status Possible Causes 11 Gathering refrigerant Fo 1 times OFF 1S 1 times 17 times When the outdoor unit receive signal of Gathering refrigerant,the system will be forced to run under cooling mode for gathering refrigerant ominal cooling mode 12 Indoor ambient temperature sensor is open/short circuited F1 once During cooling and drying operation, indoor unit operates while other loads will stop; during heating operation, the complete unit will stop operation. 1. Loosening or bad contact of indoor ambient temp. sensor and mainboard terminal. 2. Components in mainboard fell down leads short circuit. 3. Indoor ambient temp. sensor damaged.(check with sensor resistance value chart) 4. Mainboard damaged. 13 Indoor evaporator temperature sensor is open/short circuited F2 twice AC stops operation once reaches the setting temperature. Cooling, drying: internal fan motor stops operation while other loads stop operation; heating: AC stop operation 1. Loosening or bad contact of Indoor evaporator temp. sensor and mainboard terminal. 2. Components on the mainboard fall down leads short circuit. 3. Indoor evaporator temp. sensor damaged.(check temp. sensor value chart for testing) 4. Mainboard damaged Outdoor ambient temperature sensor is open/short circuited Outdoor condenser temperature sensor is open/short circuited Outdoor discharge temperature sensor is open/short circuited Limit/ decrease frequency due to overload F3 F4 F5 F6 3 times 4 times 5 times for 6 times OFF 1S and blink 6 times OFF 1S and blink 5 times OFF 1S and blink 7 times OFF 1S and blink 3 times During cooling and drying operating, compressor stops while indoor fan operates; During heating operation, the complete unit will stop operation During cooling and drying operation, compressor stops while indoor fan will operate; During heating operation, the complete unit will stop operation. During cooling and drying operation, compressor will sop after operating for about 3 mins, while indoor fan will operate; During heating operation, the complete unit will stop after operating for about 3 mins. All loads operate normally, while operation frequency for compressor is decreased Outdoor temperature sensor hasnt been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor) Outdoor temperature sensor hasnt been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor) 1.Outdoor temperature sensor hasnt been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor) 2.The head of temperature sensor hasnt been inserted into the copper tube Refer to the malfunction analysis (overload, high temperature resistant) 18 Decrease frequency due to overcurrent F8 8 times OFF 1S and blink once All loads operate normally, while operation frequency for compressor is decreased The input supply voltage is too low; System pressure is too high and overload 31

33 O. Malfunction ame Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Dual-8 blinking, O 0.5s and OFF blinking, O 0.5s and OFF Code 0.5s) 0.5s Display Operation Cool Heating ellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator A/C status Possible Causes 19 Decrease frequency due to high air discharge F9 9 times OFF 1S and blink twice All loads operate normally, while operation frequency for compressor is decreased Overload or temperature is too high; Malfunction of electric expansion valve (EKV) 20 Limit/ decrease frequency due to antifreezing FH 2 times 2 times OFF 1S and blink 4 times All loads operate normally, while operation frequency for compressor is decreased Poor air-return in indoor unit or fan speed is too low 21 Voltage for DC bus-bar is too high PH 11 times OFF 1S and blink 13 times 1. Measure the voltage of position L and on wiring board (XT), if the During cooling and drying voltage is higher than 265VAC, turn operation, compressor will stop on the unit after the supply voltage while indoor fan will operate; is increased to the normal range. 2.If the AC input is normal, During heating operation, the measure the voltage of electrolytic complete unit will stop capacitor C on control panel (AP1), operation. if its normal, theres malfunction for the circuit, please replace the control panel (AP1) 22 Voltage of DC bus-bar is too low PL OFF 1S and blink 21 times 12 times During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop 1. Measure the voltage of position L and on wiring board (XT), if the voltage is higher than 150VAC, turn on the unit after the supply voltage is increased to the normal range. 2.If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if its normal, theres malfunction for the circuit, please replace the control panel (AP1) 23 Compressor Min frequence in test state P0 (during (during blinking, blinking, O O 0.25s 0.25s and OFF and OFF 0.25s) 0.25s) Showing during min. cooling or min. heating test 24 Compressor rated frequence in test state P1 (during (during blinking, blinking, O O 0.25s 0.25s and OFF and OFF 0.25s) 0.25s) Showing during nominal cooling or nominal heating test 25 Compressor maximum frequence in test state P2 (during (during blinking, blinking, O O 0.25s 0.25s and OFF and OFF 0.25s) 0.25s) Showing during max. cooling or max. heating test 32

34 O. Malfunction ame Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Dual-8 blinking, O 0.5s and OFF blinking, O 0.5s and OFF Code 0.5s) 0.5s Display Operation Cool Heating ellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator A/C status Possible Causes 26 Compressor intermediate frequence in test state P3 (during (during blinking, blinking, O O 0.25s 0.25s and OFF and OFF 0.25s) 0.25s) Showing during middle cooling or middle heating test 27 Overcurrent protection of phase current for compressor P5 15 times During cooling and drying Refer to the malfunction operation, compressor will stop analysis (IPM protection, loss while indoor fan will operate; of synchronism protection and During heating operation, the overcurrent protection of phase complete unit will stop current for compressor. operation. 28 Charging malfunction of capacitor PU 17 times During cooling and drying operation, compressor will stop Refer to the part three charging while indoor fan will operate; malfunction analysis of capacitor During heating operation, the complete unit will stop 29 Malfunction of module temperature sensor circuit P7 18 times During cooling and drying operation, compressor will stop while indoor fan will operate; Replace outdoor control panel AP1 During heating operation, the complete unit will stop 30 Module high temperature protection P8 19 times During cooling operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop After the complete unit is deenergized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel radiator is inserted tightly. If its no use, please replace control panel AP1. 31 Decrease frequency due to high temperature resistant during heating operation H0 10 times All loads operate normally, while operation frequency for compressor is decreased Refer to the malfunction analysis (overload, high temperature resistant) 32 Static dedusting protection H2 twice 33 Overload protection for compressor H3 OFF 1S 3 times 8 times During cooling and drying 1. Wiring terminal OVC-COMP operation, compressor will stop is loosened. In normal state, the while indoor fan will operate; resistance for this terminal should During heating operation, the be less than 1ohm. complete unit will stop 2.Refer to the malfunction analysis ( operation. discharge protection, overload) 33

35 O Malfunction ame System is abnormal IPM protection Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Dual-8 blinking, O 0.5s and OFF blinking, O 0.5s and OFF A/C status Possible Causes Code 0.5s) 0.5s Display Operation Cool Heating ellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator During cooling and drying operation, compressor will stop OFF 1S Refer to the malfunction analysis while indoor fan will operate; H4 (overload, high temperature 4 times 6 times During heating operation, the resistant) complete unit will stop operation. During cooling and drying Refer to the malfunction operation, compressor will stop OFF 1S analysis (IPM protection, loss while indoor fan will operate; H5 of synchronism protection and 5 times 4 times During heating operation, the overcurrent protection of phase complete unit will stop current for compressor. operation. 36 Module temperature is too high H5 OFF 1S 5 times 10 times Internal motor (fan motor) do not operate Desynchronizing of compressor PFC protection H6 H7 HC 11 times 7 times OFF 1S 6 times 14 times Internal fan motor, external fan motor, compressor and electric heater stop operation,guide louver stops at present location. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation. 1. Bad contact of DC motor feedback terminal. 2. Bad contact of DC motor control end. 3. Fan motor is stalling. 4. Motor malfunction. 5. Malfunction of mainboard rev detecting circuit. Refer to the malfunction analysis (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor. During cooling and drying operation, compressor will stop while indoor fan will operate; Refer to the malfunction analysis During heating operation, the complete unit will stop operation. 40 Outdoor DC fan motor malfunction L3 23 times OFF 1S and blink 14 times Outdoor DC fan motor DC fan motor malfunction or malfunction lead to compressor system blocked or the connector stop operation, loosed 41 power protection L9 20 times OFF 1S 9 times compressor stop operation and Outdoor fan motor will stop 30s latter, 3 minutes latter fan motor and compressor will restart To protect the electronical components when detect high power Indoor unit and outdoor unit doesn't match Failure startup LP LC 19 times 11 times OFF 1S 16 times compressor and Outdoor fan motor can t work Indoor unit and outdoor unit doesn't match During cooling and drying operation, compressor will stop while indoor fan will operate; Refer to the malfunction analysis During heating operation, the complete unit will stop operation. 34

36 O. Malfunction ame Display Method of Indoor Unit Indicator Display (during Dual-8 blinking, O 0.5s and OFF Code 0.5s) Display Operation Cool Heating Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, O 0.5s and OFF 0.5s ellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator A/C status Possible Causes 44 Malfunction of phase current detection circuit for compressor U1 13 times During cooling and drying operation, compressor will stop while indoor fan will operate; Replace outdoor control panel AP1 During heating operation, the complete unit will stop 45 Malfunction of voltage dropping for DC bus-bar U3 20 times During cooling and drying operation, compressor will stop while indoor fan will operate; Supply voltage is unstable During heating operation, the complete unit will stop 46 Malfunction of complete units current detection U5 13 times During cooling and drying operation, the compressor will stop while indoor fan will operate; During heating operating, the complete unit will stop operation. Theres circuit malfunction on outdoor units control panel AP1, please replace the outdoor units control panel AP1. 47 The four-way valve is abnormal U7 20 times 1.Supply voltage is lower than If this malfunction occurs AC175V; during 2.Wiring terminal 4V is loosened or heating operation, the complete broken; unit will stop operation. 3.4V is damaged, please replace 4V. 48 Zerocrossing malfunction of outdoor unit U9 18 times During cooling operation, compressor will stop while indoor fan will operate; during heating,the complete unit will stop operation. Replace outdoor control panel AP1 49 Frequency limiting (power) OFF 1S 13 times 50 Compressor running OFF 1S once The temperature for turning on the unit is reached Frequency limiting (module temperature) OFF 1S 8 times OFF 1S 11 times 35

37 O. Malfunction ame Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display (during Indicator has 3 kinds of display Dual-8 blinking, O 0.5s and OFF status and during blinking, O Code 0.5s) 0.5s and OFF 0.5s Display Operation Cool Heating ellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator A/C status Possible Causes 53 ormal communication OFF 0.5S once 54 Defrosting once (during OFF 1S blinking, O 10s twice and OFF 0.5s) Defrosting will occur in heating mode. Compressor will operate while indoor fan will stop operation. Its the normal state 36

38 8 Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor Voltage higher than 200V? Fault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminal L and on wiring board XT(power supply) Voltage within 210VAC~250VAC? Shut down the power and repair the power supply to restore the range 210VAC~250VAC power on and restart the unit If the fault is eliminated? Shut down the power and wait 20 minutes; or use DC voltmeter to measure the voltage on the two ends of capacitor, until the voltage is lower than 20V Check the connection of reactor (L in the Electrical Wiring Diagram) If the wiring of reactor Lis normal? Connect the reactor Laccording to Electrical Wiring Diagram correctly Re-energize and turn on the unit If the fault is eliminated? Replace the control panel AP1 End 7

39 Energize and switch on IPM protection occurs after the machine has run for a period of time? Use AC voltmeter to measure the voltage between terminal L and on the wiring board XT) If the voltage between terminal L and on wiring board XT is within 210VAC~250VAC? Check the supply voltage and restore it to 210VAC~250VAC Refer to the Electrical Wiring Diagram and check if the connection between AP1 and COMP is loose and if the connection order is correct. Please confirm: 1. If the indoor and outdoor heat exchangers are dirty? If they are obstructed by other objects which affect the heat exchange of indoor and outdoor unit. 2. If the indoor and outdoor fans are working normally? 3. If the environment temperature is too high, resulting in that the system pressure is too high and exceeds the permissible range? 4. If the charge volume of refrigerant is too much, resulting in that the system pressure is too high? 5. Other conditions resulting in that the system pressure becomes too high. Voltage between the two ends of celectrolytic capacitor is higher than 250V Stop the unit and disconnect the power supply. Then, check the connection of capacitor C2 according to Electrical Wiring Diagram. Remove the wires on the two ends of capacitor C2. Then, use capacitance meter to measure the capacitor C2. Verify as per the Parameters Sheet. If capacitor C2 is failed? If there is any abnormality described above? Restart the unit. Before protection occurs, use DC voltmeter to measure the voltage between the two ends of electrolytic capacitor on control panel AP1 The connection of capacitor C2 is loose. Stop the unit and disconnect the power supply. Wait 20 minutes, or use DC voltmeter to measure the voltage between the two ends of capacitor C2, until the voltage is lower than 20V Replace the capacitor C2. Then, energize and start the unit. Replace the control panel AP1 Take corrective actions according to Technical Service Manual, and then energize and start the unit. Replace the control panel AP1 If the unit can work normally? Reconnect the capacitor C2 according to Electrical Wiring Diagram. Then, Restart the unit. If the unit can work normallv? If the unit can work normally? If the unit can work normally? If the connection between AP1 and COMP is unsecure or the connection order is wrong? Connect the control panel AP1 and compressor COMP correctly according to the Electrical Wiring Diagram. Then, energize and start the unit. If the unit can work normally? Use ohmmeter to measure the resistance between the three terminals on compressor COMP, and compare the measurements with the compressor resistance on Service Manual. Use ohmmeter to measure the resistance between the two terminals of compressor COMP and copper tube. If the resistance is normal? Resistance higher than 500MΩ? Replace the compressor COMP Replace the control panel AP1 ED 38

40 Overheat and high temperature protection Is outdoor ambient temperature higher than 53? ormal protection, please operate it after the outdoor ambient temperature is normalized. 20 minutes after the complete unit is powered off. Is heat dissipation of the indoor unit and outdoor unit abnormal? Improve the heat dissipation environment of the unit Does the outdoor fan work normally? 1. Check if the fan terminal OFA is connected correctly 2. Resistance between any two terminals is measure by an ohm gauge and should be less than 1K Ohm. Replace the control panel AP1 Replace the fan capacitor C1 Replace the outdoor fan End 39

41 Power on the unit Is stop time of the compressor longer than 3 minutes? Restart it up after 3 minutes Does startup fail? Are the wires for the compressor connected correctly? Is connection sequence right? Connect the wires as per the connection diagram Replace the control panel AP1 If the fault is eliminated? Replace the compressor End 40

42 Out of step occurs once the unit is powered on. Out of step occurs in operation Is stop time of the compressor longer than 3 minutes? Is the outdoor fan working normally? Check if the fan terminal OFA is connected correctly Replace the fan capacitor C1 Is the outdoor unit blocked by foreign objects? Remove foreign objects Replace the outdoor fan Are the wires for the compressor connected correctly? Is connection sequence right? Is the connection made in clockwise direction? Replace the control panel AP1 Connect the wires correctly Replace the control panel AP1 If the fault is eliminated? If the fault is eliminated? Replace the compressor Replace the compressor End End 41

43 20 minutes after the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly? Connect the wires correctly Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same, less than 100 ohm. Replace the electronic expansion valve If the fault is eliminated? Replace the control panel AP1 If the fault is eliminated? Coolant leakage, refilling the coolant End 42

44 Start Check 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? Remove the PFC capacitor and measure resistance between the two terminals. Is the resistance around zero? The capacitor is short circuited and the capacitor should be replaced Restart the unit If the fault is eliminated? Disconnect the terminals for the reactor and measure the resistance between the two terminals of the reactor by an ohm gauge Whether there is any damage or short-circuit? Replace the reactor Restart the unit If the fault is eliminated? Replace the control panel AP1 End 43

45 Start Did the equipment operate normally before the failure occurs? Check the wiring of the indoor and outdoor units with reference to the wiring diagram Check wiring inside of the indoor and outdoor units Is the connection right? The AP1 voltage detection circuit is at fault Are wires broken? Correctly connect the corresponding wires for the indoor and outdoor units with reference to the wiring diagram If the fault is eliminated? Check the communication circuit of the outdoor unit If the fault is eliminated? The communication circuit is abnormal Replace the main board AP1 of the outdoor unit If the fault is eliminated? Replace the main board of the indoor unit End 44

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47 Start Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Value jumping Measure voltage at the Test 11 position as shown in the diagram with a voltmeter Fault with outdoor unit End Value jumping Measure voltage at the Test 12 position as shown in the diagram with a voltmeter Value jumping The communication circuit of the outdoor unit is normal 46

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54 Steps Procedure 1.Remove big handle Before disassamble Remove 1 connection screw fixing big handleand then removethe big handle. big handle 2. Remove top cover top cover Remove 3 connection screws among top cover plate, front panel and right sideplate. Then remove top cover plate. 53

55 3.Remove grille and front panel Remove connection screws between the front grille and the front panel. Then remove the front grille. Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. Grille Panel 4.Remove axial flow blade Axial flow blade Remove the nut fixing the blade and then remove the axial flow blade. 5.Remove right side plate Remove connection screws connecting the right side plate with the valve support and the electric box. Then remove the right side plate. Right side plate 54

56 6.Remove electric box assy Electric box assy Remove the 2 screws fixing the cover of electric box. Lift to remove the cover. Loosen the wire and disconnect the terminal. Lift to remove the electric box assy. 7.Remove 4-way valve assy Unscrew the fastening nut of the 4-way Valve Assy coil 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 take it out.(ote: Refrigerant should be discharged firstly.) Welding process should be as quickly as possible and keep wrapping cotton wet all the time. Be sure not to burn out the lead-out wire of compressor. 4-way Valve Assy 8.Remove capillary sub-assy Unsolder weld point of capillary Sub-assy, valve and outlet pipe of condensator. Then remove the capillary Sub-assy. Do not block the capillary when unsoldering it. (ote: before unsoldering,discharge refrigerants completely) Capillary Sub-assy 55

57 9.Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to remove it. Motor 10.Remove clapboard sub-assy Clapboard Sub-Assy Loosen the screws of the Clapboard Sub-Assy. The Clapboard Sub-Assy has a hook on the lower side. Lift and pull the Clapboard Sub-Assy to remove. 56

58 11.Remove Compressor 1 Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve. (ote: it is necessary to warp the gas valve when unsoldering the welding spot.) Remove the 2 screws fixing liquid valve. Unsolder the welding spot connecting liquid valve and remove the liquid valve. Liquid valve Gas valve 2 Remove the 3 footing screws of the compressor and remove the compressor. Compressor 57

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60 F-GAS REGULATIO (EC) no. 842/2006 IT on disperdere R410A nell'atmosfera: R410A è un gas fluorinato a effetto serra, coperto dal protocollo di Kyoto, con potenziale di riscaldamento globale (GWP) = E Do not vent R410A into atmosphere: R410A is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = FR e déchargez pas R410A dans l'atmosphère : R410A est un gaz fluoré à effet serre, couvert par le protocole de Kyoto, avec un potentiel de chauffage global (GWP) = DE Zerstreuen Sie R410A in Atmosphäre nicht: R410A ist ein fluoriertes Gas, abgedeckt durch Kyoto Protokoll, mit einem globalen wärmenden Potential (GWP) = ES o expulsar R410A a la atmósfera: el R410A es un gas fluorado de efecto invernadero, cubierto por el protocolo de Kyoto, con potencial de calentamiento global (GWP) = 1975.