SERVICE MANUAL
Contents
1. 15 64 HOW SO oot tee eee et l 16 0 41 Installation of the housing arie a ee 16 6 4 2 Installation of the unit into the housing Fout Bladwijzer niet gedefinieerd 6 4 3 Installation of the unit into the wall Fout Bladwijzer niet gedefinieerd 6 4 4 Installation Steps ome SU et cre ete e t aae cn Eni tri itus 18 7 Operation characteriSt CS 2 22 e e rr detiene tui eines ee cra Saan gass Tuae 19 7 1 Cooling Operation petet teat ER 19 7 2 Heating Operallon 19 7 3 Characteristic of temperature 20 8 Protection FUNCTION P RA A A 21 8 1 Proper symbols and their 21 8 2 Protection FUNCUION im d iR a Da p ERR REL RARE 21 8 2 1 Three minutes delay at restart for 21 8 2 2 Anti freezing protection at cooling or dry 21 8 2 3 Anti frosting protection and defect at cooling or dry 22 8 2 4 Auto defrosting function in heating mode 22 8 2 5 Temperature sensor is open circuit or short 22 9 Troubleshooting i2. Part list No Name Qty Part Name Qty 1 Front panel assembly 1 9 Holder for fan motor 1 1 1 Front panel 1 10 Centrifugal fan 1 1 2 Filter 1 11 Vent door 1 1 3 Front frame 1 12 Link ventilation 1 1 4 Louver holder 1 13 Air leading board 1 1 5 Horizontal louver 10 14 Wind inlet guide 1 1 6 Air out frame assembly 1 15 Fan shell base 1 1 7 Cover of front panel 1 16 Fan shell 1 3 E Part box assembly 1 17 Evaporator base 1 3 11 E Part box 1 18 Front cover 1 3 12 Swing motor 1 19 Front separating board 1 42 3 13 Main switch 1 20 Connecting board 1 3 14 Temperature controller 1 21 Buttstrap 1 3 14 Temperature controller 1 22 Rear separating board 1 3 14 Temperature controller 1 24 Rear cover 1 3 15 Capacitor 1 25 Cabinet assembly 1 3 22 Power cord assembly 1 26 water drain pan 1 3 23 Compressor capacitor 1 28 Condensor 1 3 24 Capacitor clamp 1 31 Four Way valve assembly 1 3 25 Wire joint 2 32 Drain stopper 1 4 Control cover 1 33 Compressor 1 5 Knob 2 34 Chassis assembly 1 6 Side board of E Part box 1 35 Capillary assembly 1 7 Propeller fan 1 36 Evaporator 1 8 Fan motor 1 12 CE KCR46 N1 Y FE1 B4 MWF 16HRN1 QB4 Part list Part Name Qty Part Name Qty 1 Front panel assembly 1 9 Holder for fan motor 1 1 1 F
3. 2 FR KC26 N1Y EE1 B4 MWH 09CRN1 QB4 FN 7 13 D Part list No Part Name Qty Part Name Qty 1 Front panel assembly 1 13 Fan motor 1 1 1 Front panel 1 14 Centrfugal fan 1 1 2 Filter 1 15 Cover 1 1 3 Front frame 1 16 Rear separating board 1 1 4 Louver holder 1 17 Front separating board 1 1 5 Horizontal louver 9 18 Scroll 1 1 6 Air out frame 1 19 Vent door 1 2 Remote controller 1 20 Air leading board 1 3 Display box assembly 1 21 Seat 1 3 1 Control panel 1 22 Guide seat 1 6 Fixing board for E parts box 1 23 Air inlet board 1 7 E Part box assembly 1 24 Evaporator base 1 33 7 11 E Part box 1 25 Condensator 1 7 12 Indoor temperature sensor 1 26 Capillary assembly 1 7 13 Pipe temperature sensor 1 27 Evaporator 1 7 14 Transformer 1 28 Left retaining plate of chassis 1 7 17 Compressor capacitor 1 29 Right retaining plate of chassis 1 7 20 Main control board 1 30 Suction pipe 1 7 21 Capacitor 1 31 Discharge pipe 1 7 23 Power cord 1 33 Cabinet assembly 1 10 E part box cover 1 35 Rubber 2 11 Propeller fan 1 36 Compressor 1 12 Holder for fan motor 1 37 Chassis assembly 1 3 FR KCR26 N1 EE1 B4 MWH 09HMN1 QB4 P WI t Part list No Part Name Qty No Part Name Qty 1 Front panel assembly 1 14
4. 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Resistance 14 6181 13 918 13 2631 12 6431 12 0561 11 5 10 9731 10 4736 10 9 5507 9 1245 8 7198 8 3357 7 9708 7 6241 7 2946 6 9814 6 6835 6 4002 6 1306 5 8736 5 6296 5 3969 5 1752 4 9639 4 7625 4 5705 20 Resistance KQ 4 3874 4 2126 4 0459 3 8867 mm 3 5896 am 3 3185 TT I 2 959 2 8442 E 2 6368 I NET e I 2 1907 2 1124 20373 1 9653 66 1 8963 1 830 C MEZ e us 1 6469 m 8 Protection Function 8 1 Proper symbols and their meaning T1 Indoor ambient temperature 2 Indoor evaporator temperature T3 Outdoor condenser temperature Setting temperature through the remote controller m 8 2 Protection Function m 8 2 1 Three minutes delay at restart for compressor m 0 22 Anti freezing protection at cooling or dry mode 1 Anti freezing control according to T2 Indoor evaporator temperature If the evaporator pipe temperature had been lower than 1 C for 14 minutes the evaporator anti freezing protection will be activated The compressor will keep off in the following 5 minutes 5 minutes later if the evaporator pipe temperature is still lower than 1 C the compressor will stay off If the temperature gets higher than 1 C the compressor will be started and the function is cancelle
5. C or the defrosting time gets to 10 minutes the function will be cancelled After that the compressor will shut down immediately with the fan motor starts 35 seconds later the reverse valve will be ON and the compressor will be ON after another 3 seconds 8 2 5 Temperature sensor is open circuit or short circuit 22 9 Troubleshooting In general possible trouble is classified in three kinds One is called Starting Failure which is caused from an electrical defect another is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application and the other is called the Structure Damage Operation panel don t work Check the power supply N Press the LED button of remote controller several times and check whether the problem is settled down Defect explanation Yes E Check the wiring of display board Te 23 Repair the wiring Evaporator pipe temperature sensor Replace the display board No Replace the main control board Fan motor speed can t change Check the wiring Check the capacitor of fan motor Replace if failed Display keeps showing Ed Check whether the evaporator frosts No Check whether the indoor air inlet is blocked No Check whether the indoor ambient temperature is too low No Check whether the indoor dust filter is too dirty No Check whether there is too mu
6. Centrfugal fan 1 1 1 Front panel 1 15 Cover 1 1 2 Filter 1 16 Rear separating board 1 1 3 Front frame 1 17 Front separating board 1 1 4 Louver holder 1 18 Scroll 1 1 5 Horizontal louver 9 19 Vent door 1 1 6 Air out frame 1 20 Air leading board 1 1 7 Cover for Control panel 1 21 Seat 1 4 Knob 2 22 Guide seat 1 5 Control cover 1 23 Air inlet board 1 7 E Part box assembly 1 24 Evaporator base 1 7 11 E Part box 1 25 Condensator 1 715 Wire joint 2 26 Capillary assembly 1 7 16 Capacitor clamp 1 27 Evaporator 1 7 17 Compressor capacitor 1 28 Left retaining plate of chassis 1 7 18 Main switch 1 29 Right retaining plate of chassis 1 7 21 Capacitor 1 32 Four ways valve assembly 1 7 22 Temperature controller 1 33 Cabinet assembly 1 7 23 Power cord 1 34 Water drain pan 1 10 E part box cover 1 35 Rubber 1 11 Propeller fan 1 36 Compressor 1 12 Holder for fan motor 1 37 Chassis assembly 1 13 Fan motor 1 4 FR KCR26 N1Y EE1 B4 MWH 09HRN1 QB4 rr 7 r 23 2 2 1ir 2 D Part list Part Name Qty Part Name Qty 1 Front panel assembly 1 13 Fan motor 1 1 1 Front panel 1 14 Centrfugal fan 1 1 2 Filter 1 15 Cover 1 1 3 Front frame 1 16 Rear separating board 1 1 4 Louver holder 1 17 Front separating board 1 1 5 Horizontal louver 9 18 Scroll 1 1 6 Air out
7. against the rear of the housing Care is required to ensure the foam sealing strips on the housing remain in position Connect the air conditioner to the power and position excess cord length beneath the air conditioner base Engage the chassis fixing brackets into the bottom housing rail and secure to the base with the screw provided Remove the front panel from it s carton and plastic bag and fit as per the installation instruction Switch unit on Check for operation of the unit and check for vibration in the installation Fit the drain pan to the housing and run a drain line to a suitable location if required m 6 4 3 Installation of the unit into the wall 5 BRICK CUT AWAY O CLEAR LOUVRES 17 6 4 4 Installation steps Step 1 Remove the front panel and the air filter Hold the slot under the front panel then uplift it outwards and remove the front panel See Fig 1 Pinch the handle under the air filter and make the air filter arched remove it from the slot from underside to upside See Fig 2 Step 2 Remove the frame Remove the two fixing screws from the frame See Fig 3 Grasp the left corner of the frame s underside then loosen the frame See Fig 4 Step 3 Installation Then remove the four screws located on both sides and back sides of the cabinet See Fig 5 Grasp the handle on the chassis and carefully slide the air conditioner out of the cabinet See Fig 6 Remov
8. frame 1 19 Vent door 1 2 Remote controller 1 20 Air leading board 1 3 Display box assembly 1 21 Seat 1 3 1 Control panel 1 22 Guide seat 1 6 Fixing board for E parts box 1 23 Air inlet board 1 7 E Part box assembly 1 24 Evaporator base 1 35 7 11 E Part box 25 Condensator 7 12 Indoor temperature sensor 26 Capillary assembly 7 13 Pipe temperature sensor 27 Evaporator 7 13 Pipe temperature sensor 28 Left retaining plate of chassis 7 14 Transformer 29 Right retaining plate of chassis 7 17 Compressor capacitor 32 Four ways valve assembly 7 20 Main control board 33 Cabinet assembly 7 21 Capacitor 34 Water drain pan N m os i k 7 23 Power cord 35 Rubber 10 E part box cover 36 Compressor 11 Propeller fan 37 Chassis assembly 12 Holder for fan motor 5 FR KC35 N1 F1E1 B4 MWF1 12CMN1 QB4 Part list No Part Name Qty No Part Name Qty 1 Front panel assembly 1 9 Capillary assembly 1 1 1 Front panel 1 10 Suction pipe 1 1 2 Filter 1 11 Compressor 1 1 3 Front frame 1 12 Discharge pipe 1 1 4 Air out frame 1 14 Condensor 1 1 5 Link ventilation 1 15 Evaporator base 1 1 6 Horizontal louver Il 9 16 Wind inlet guide 1 1 7 Control panel 1 17 Fa
9. product There is risk of fire or failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the 2 window before the hurricane arrives There is risk of property damage failure of product or electric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure When the product is soaked flooded or submerged contact an Authorized service center There is risk of fire or electric shock Be caution that water could not enter the product There is risk of fire electric shock or product damage Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock When the product is not be used for a long time disconnect the power sup
10. whether it is the range from 5V to 12V If not replace the transformer The compressor operates run stop frequently Check whether the airflow passage is blocked No Check whether the fan motor doesn t work No Check whether capacitor of compressor work normally No Check whether the relay of compressor on PCB works normally No Replace the PCB No Check whether the capillary is blocked No Replace the capillary No Replace the compressor Water drips from the unit Check whether the ambient humidity is too high No 27 Check whether the indoor outlet airflow foam is too wet and louver drip Check whether the unit is correctly installed For reverse cycle model No ineffective cooling No ineffective heating indicates room temp sensor failure Whether the display panel indoor pue sensor Haute display one of the foollowing indicates outdoor pipe sensor failure signal Er En Eo Ed indicates that the evap Is frosting Check whether the indoor Whether the compressor can start outlet inlet of the unit in cooling heating mode is blocked or the vent even if it soon stops door is open NO Check temperature setting Check whether the outdoor outlet inlet of the unit Check wiring is blocked or the vent is blocked Check compressor capacitor Check whether the Evap is No voltage Check the voltage between Repla
11. x height x width mm 370x331 5x23 2 623x351x23 2 g Number of circuits 2 2 Refrigerant tvpe g R410A 360 R410A 480 Design pressure MPa 4 2 1 5 4 2 1 5 Plug type 1 0x3 VDE 1 5x3 VDE Thermostat type Remote control Remote control Operation temp 17 30 17 30 Application area m2 14 20 18 26 Dimension W H D mm 450x350x540 600x380x560 Packing W H D mm 495x435x580 685x430x620 Net Gross weight Kg 29 5 32 36 5 41 Qty per 20 40 40 HQ 220 480 575 135 285 340 46 Project G110 C21 Code 220021800960 Model MWF 16CRN1 QB4 Power supply Ph V Hz 1Ph 220 240V 50Hz Capacity Btu h 16000 Input W 1950 Cooling Rated current A 9 Capacity Btu h N A Heating Input W N A Rated current A N A op Moisture Removal L h 1 6 Max input consumption W 2700 Max current A 15 Starting current 25 9 Model PA185M2C 4FT2 Type ROTARY Brand TOSHIBA Capacity Btu h 15252 Input W 1500 Compressor Rated current RLA A 7 Locked rotor AMp LRA A 25 9 Thermal protector meas Thermal protector position INTERNAL Capacitor uF 35 Refrigerant oil oil charge ml ESTER OIL VG74 480cc Model YSK90 6 Brand Welling Fan motor Input W 165 155 145 Capacitor uF 6 Speed Hi Mi Lo r min 770 690 620 a Number of rows 2 b Tube pitch a x row pitch b mm 21x13 37 c Fin spacing mm 1 3 E
12. 22 Capacitor 32 Air leading board 6 23 Transformer 33 Vent door A A oe oe N ea 7 Side board of E Part box 9 CE KC46 N1 FE1 B4 MWF 16CMN1 QB4 3 3 15 Part list Part Name Qty Part Name Qty 1 Front panel assembly 1 10 Centrifugal fan 1 1 1 Front panel 1 11 Vent door 1 1 2 Filter 1 12 Link ventilation 1 1 3 Front frame 1 13 Air leading board 1 1 4 Louver holder 1 14 Wind inlet guide 1 1 5 Horizontal louver 10 15 Fan shell base 1 1 6 Air out frame assembly 1 16 Fan shell 1 1 7 Cover of front panel 1 17 Evaporator base 1 3 E Part box assembly 1 18 Front cover 1 3 11 E Part box 1 19 Front separating board 1 3 12 Swing motor 1 20 Connecting board 1 40 3 13 Main switch 1 21 Buttstrap 1 3 14 Temperature controller 1 22 Rear separating board 1 3 14 Temperature controller 1 24 Rear cover 1 3 15 Capacitor 1 25 Cabinet assembly 1 3 22 Power cord assembly 1 28 Condensor 1 3 23 Compressor capacitor 1 29 Discharge pipe 1 3 24 Capacitor clamp 1 30 Suction pipe 1 4 Control cover 1 32 Drain stopper 1 5 Knob 2 33 Compressor 1 6 Side board of E Part box 1 34 Chassis assembly 1 7 Propeller fan 1 35 Capillary assembly 1 8 Fan motor 1 36 Eva
13. 890070 DISPLAY BOARD BROWN L TRANSFORMER G Y BLUE V POWER SUPPLY 5 FR KC35 N1 F1E1 B4 MWF1 12CMN1 QB4 DEFROSTING EI FAN THERMOSTAT 6 FR KC35 N1Y F1E1 B4 MWF1 12CRN1 QB4 CE KC46 N1Y FE1 B4 MWF 16CRN1 QB4 202021990001 BROWN BLUE 202021 490183 P SWITCH LOUVER WOR REL I 8 FR KCR35 N1Y F1E1 B4 MWF1 12HRN1 QB4 CE KCR46 N1Y FE1 B4 MWF 16HRN1 QB4 DEFROSTING THERMOSTAT 10 CE KCR46 N1 FE1 B4 MWF 16HMN1 QB4 se ee ee ee CTUM g j VAVE N THERMOSTAT m Installation details 6 1 Select the best location About 10mm 75 150cm Over 50cm 1 To avoid vibration and noise make sure the unit is installed securely and firmly 14 Install the unit where the sunlight does not shine directly on the unit If the unit receives direct sunlight build an awning to shade the cabinet There should be no obstacle such as a fence or wall within 50cm from the back of the ambient because it will prevent heat radiation of the condenser Restriction of outside air will greatly reduce the cooling and heating efficiency of the air conditioner Install the unit on a slight angle so that an condensate formed will not enter the room about 10mm or 1 4 bubble with level Install the unit with its bottom portion 75 150cm above t
14. A idea SERVICE MANUAL MIDEA AIRCONDITIONER Side Air Discharge Tvpe Factorv No FR KC26 N1 EE1 B4 FR KC26 N1Y EE1 B4 FR KCR26 N1 EE1 B4 FR KCR26 N1 Y EE1 B4 FR KC35 N1 F1E1 B4 FR KC35 N1Y F1E1 B4 FR KCR35 N1 F1E1 B4 FR KCR35 N1Y F1E1 B4 CE KC46 N1 FE1 B4 CE KC46 N1 Y FE1 B4 CE KCR46 N1 FE1 B4 CE KCR46 N1Y FE1 B4 Sale No MWH 09CMN1 QB4 MWH O9CRN1 QB4 MWH 09HMN1 QB4 MWH 09HRN1 QB4 MWF1 12CMN1 QB4 MWF1 12CRN1 QB4 MWF1 12HMN1 QB4 MWF1 12HRN1 QB4 MWF 16CMN1 QB4 MWF 16CRN1 QB4 MWF 16HMN1 QB4 MWF 16HRN1 QB4 WC1E 1026 A CONTENTS 1 PROC AUTOR EET a 1 II Safety Precsull cte i 1 AES 1 2 Function and control panel esee Fout Bladwijzer niet gedefinieerd 2 LE Un Fout Bladwijzer niet gedefinieerd 2 2 Gontrol Panelists ori i soe be ceti a RM fes 6 3 Dimensio ane A TA 8 4 Refrigerant Cycle Diagram e MAMMA MAMMA AM MEAEAHAHAEMAAnnzmnnnznnnzzn 8 5 Wiring Die is e AARS OENAR ET RAR AR AR 9 6 Installation details Va a a a RRR rakar 14 6 1 Select ihe best locations e a Rte 14 6 2 Check off installation ii ete RR P Ee E nie ieee C e c ee ER 15 3
15. Btu h 9000 12000 Input W 1100 1450 Rated current A 4 8 6 5 ew Btu h N A N A Heating Input W N A N A Rated current A N A N A cop NN Moisture Removal L h 1 1 2 Max input consumption W 1450 1800 Max current A 7 8 10 Starting current A 21 7 26 7 Model PA103M1C 4DZDE2 PA145G1C 4FT1 Type ROTARY ROTARY Brand TOSHIBA TOSHIBA Capacity Btu h 8428 8530 12215 12334 Input W 830 860 1240 1330 Compressor Rated current RLA A 3 85 3 73 5 82 6 10 Locked rotor AMp LRA A 21 7 26 7 Thermal protector B160 135 241E 2545 Thermal protector position EXTERNAL INTERNAL Capacitor uF 25 35 Refrigerant oil oil charge ml ESTER OIL VG74 350 ESTER OIL VG74 400 Model YSK60 4C S YSK40 6F Brand Welling Welling Fan motor Input W 112 84 5 99 85 78 Capacitor uF 2 5 4 Speed Hi Mi Lo r min 1270 1075 890 810 730 a Number of rows 3 2 b Tube pitch a x row pitch b mm 21x13 37 21x13 37 c Fin spacing mm 1 2 1 3 Evaporator d Fin type code Hydrophilic aluminium Hydrophilic aluminium e Tube outside dia and type mm 07 innergroove tube 7 innergroove tube f Coil length x height x width mm 248x294x40 11 355x336x26 74 g Number of circuits 2 2 Condenser a Number of rows 2 2 b Tube pitch a x row pitch b mm 19 5x11 6 19 5x11 6 c Fin spacing mm 1 3 1 2 d Fin type code UnHydrophilic aluminium UnHydrophilic aluminium e Tube outside dia and type mm 05 innergroove tube 5 innergroove tube f Coil length
16. R ao sto amp 2 o CD 9 1 Remote control panel m 3 Dimension H E1 series Dimension Mode W H D 9K 450 346 535 12K 600 380 560 16K 660 430 687 m 4 Refrigerant Cycle Diagram The figure below is a brief description of the important components and their function in what is called the refrigeration system This will help to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle or in the heating cycle 1 This figure below is fit for Cooling Only Unit ROOM AIR CONDITIONER CYCLE OF REFRIGERATION EVAPORATOR CONDENSER COMPLETE LIQUID BOIL Sane PRESSURE VAPOR 7 COOLED j j OT DISCHARGE AIR m dee Ee 4 AIR OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH Lau PRESSURE DROP 5 7 LIQUID OUTLET LIQUID REFRIGERANT S HIGH PRESSURE VAPOR CAPILLARY LOUD REFRIGERANT LOW PRESSURE VAPOR 2 This figure below is fit for Heat Pump and Cooling Unit TE In the cooling mode the flow direction of refrigerant is In the heat mode the flow direction of refrigerant is gt m 5 Wiring Diagram 1 FR KC26 N1 EE1 B4 MWH 09CMN1 QB4 202021490103 2 FR KC26 N1Y EE1 B4 MWH 09CRN1 QB4 202020890092 4 FR KCR26 N1Y EE1 B4 MWH 09HRN1 QB4 202020
17. T THREE MINUTES BEFORE RESTARTING ME EE C DRY FAN Mechanical control panel Remote control panel 3 12K Cooling only AUTO SWING THERMOSTAT SELECTOR Ir ON 6 OFF o 4 se 99 O e AUTO X SLEEP e 9 PAM at FAN ems ures D MED LOW 1 nrm C A Mechanical control panel Remote control panel 4 12K Heat Pump AUTO SWING THERMOSTAT SELECTOR OFF Pm d Fe ju xL Ne HEATER vour V WA u COOL WAIT THREE MINUTES D BEFORE RESTARTING Mechanical control panel 5 16K Cooling only THERMOSTAT FF SELECTOR 6 OFF AUTO SWING H MED LOW 3 O 9 0001 O FAN Low 1 12 COOLER CooL WAIT THREE MINUTES BEFORE RESTARTING Mechanical control panel 6 16K Heat Pump THERMOSTAT SELECTOR 6 OFF tM ON POWER 4 N ae 3 o Low eg el SORA NA 4 HIGH K J HEAT HIGH HEATER COOLER WAIT THREE MINUTES BEFORE RESTARTING Mechanical control panel SWING POWER Gem i AUTO SLEEP l TEMP Su wv Bo o o MED LOW C 2 Remote control panel TIMER wmc POWER o o AUTO SLEEP COOL FAN 2 10 m om Remote control panel TMERON
18. ce the main PCB 9 on main PCB and on power cord Replace the compressor Check the fan capacitor Replace the motor frosting and the compressor stops frequently Check the speed of motor gt Check leakage Normal leakage Check whether the temp of suction pipe is above 7 C Recycle refrigerant and braze the leakage point In cooling Yes Replace the capillary tube j Vacuum and recharge Replace the reverse valve Check the drainage PROBLEM POSSIBLE CAUSE REMARK Fan motor will not run No power Check voltage at electrical outlet Correct if none Power supply cord Check voltage at the power cord terminal Replace the power cord if none Wire disconnected or connection loose Connect wire Refer to wiring diagram for terminal identification Repair or replace loose terminal Main switch failure Check and replace the main switch if failure Capacitor Discharge capacitor before testing Test capacitor Replace if not within 10 of manufacture s rating Replace if shorted open or damaged Will not rotate Fan blade hitting shroud or blower hitting scroll Check fan motor bearings Replace the motor if motor shaft do not rotate Realign assembly Fan motor runs intermittently Cycles on overload Check voltage Call an electrician if not within limits T
19. ch water on the chassis No Check the wiring of pipe temperature sensor No Yes Check the pipe temperature sensor Replace the pipe temperature sensor No Replace the main control board 24 Compressor doesn t work Check whether the indoor temperature is lower than 15 C or larger than 31 No Check the power supply No Check whether the voltage is too high or too low No Check the wiring No Check whether the compressor is under overload protection No Check whether the relay of compressor in PCB works normally Start the unit after 3mins and set the unit with cool mode and 17 C 62 F Then check the output of relay and replace the PCB if failed Check whether the external Remove the overload protector and cool to normal temperature Then check whether it is protector works normally open circuit Replace if failed No No l Cooling mode don t work cooling not enough Check the operation mode No Check the setting temperature No Check whether dust filter is too dirty No Start the unit with cool mode and check whether the temperature of compressor s discharge pipe is smaller than 90 C If no recharge refrigerant No Replace the capillary The air con doesn t work Check the power supply No Check the wiring No 26 Check whether the transformer is failed Measure the output voltage of transformer and check
20. d 2 Anti freezing control according to TIME If the lasting time of compressor which is continuously running has got to 105 minutes with fan motor operating under Med or Low speed and the indoor ambient temperature lower than 26 the anti freezing function will be activated The compressor will keep off for 3 minutes 3 Note If the compressor stops operation the time will be cleared If the fan motor turns to High speed or the indoor ambient temperature gets over 26 C the time will keep inactive not be cleared 21 8 2 3 Anti frosting protection and defect at cooling or dry mode 3 minutes later when compressor is running if T2 has been less than 15 C for subsequent 3 minutes the anti frosting protection is activated and compressor will stop in the following 6 minutes After that if the condition for defrosting function is met again in the following 10 minutes while the compressor is operating the unit will display Ed to indicate that the unit is in the defrost defect The compressor and fan motor will be OFF Note The Defect display can be cancelled only by pressing the ON OFF button on the unit or the remote controller 8 2 4 Auto defrosting function in heating mode If T3 condenser pipe temperature has been lower than 0 C for 40 minutes the function will be activated The compressor will be ON while reverse valve and fan motor are OFF If condenser pipe temperature gets over 20
21. e caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an Authorized service center There is risk of fire electric shock explosion or injury Do not install the product on a defective installation stand It may cause injury accident or damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock Do not place anything on the power cable There is risk of fire or electric shock Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands There is risk of fire or electric shock Do not place a heater or other appliance near the power cable There is risk of fire and electric shock Do not allow water to run into electric parts It may cause fire failure of the product or electric shock Do not store or use flammable gas or combustible near the
22. e shipping pad from around compressor before operation and make sure the discharge points to the drain pan are aligned before the chassis is pushed into the cabinet See Fig 7 Push the unit chassis into the cabinet See Fig 8 Install the two chassis fixing brackets using the two fixing screws See Fig 5 Step 4 Install the frame Install the frame making sure not to interfere with the temperature sensor cable See Fig 9 Fix the screws on the frame See Fig 3 Step 5 Install the air filter and front panel Install the air filter into the frame s slot from upside to underside See Fig 2 Hang the front panel on the frame s buckle then press the front panel into the frame s slot until you hear a click See Fig10 18 7 Operation characteristics 7 1 Cooling operation Outdoor air temp C DB 45 40 30 25 20 5 10 15 20 25 30 35 40 ndoor air temp DB 7 2 Heating operation Indoor air temp C DB Outdoor air temp C DB 19 7 3 Characteristic of temperature sensor Temp Resistance U N j ON 62 2756 58 7079 56 3694 52 2438 49 3161 46 5725 44 41 5878 39 8239 37 1988 35 2024 33 3269 31 5635 29 9058 28 3459 26 8778 25 4954 24 1932 22 5662 21 8094 20 7184 19 6891 18 7177 17 8005 16 9341 16 1156 15 3418 Temp C 17
23. est capacitor Replace if not within 10 of manufacture s rating Check bearings Replace the motor if the fan blade cannot rotate freely Pay attention to any change from high speed to low speed Replace the motor if the speed does not change Fan motor noise Fan Replace the fan if cracked out of balance or partially missing Blower Replace the blower if cracked out of balance or partially missing 29 Loose screws Tighten them Worn bearings Replace the motor if knocking sounds continue when running or loose or the motor hums or noise appears to be internal while running The compressor not to stop even the room temperature has got to the setting temperature Thermostat Check and replace if the thermostat is damaged PROBLEM POSSIBLE CAUSE REMARK Insufficient cooling or heating Air filter Clean or replace if restricted Vent door Close if open Unit undersized Determine if the unit is properly sized for the area to be cooled or heated Condenser and Evaporator Clean or replace if restricted Fan motor Check the fan capacitor and replace if not within 10 of manufactures rating Room structure Take proper measures to make the door and windows sealed well if gap is found Air flow Clean or remove if any barrier is found to block the inlet outlet wind flow of the unit Sunli
24. ght Add a awning if the condenser is exposed to the sunlight Less refrigerant Check the tubes for reasons of leakage Recycle the refrigerant correct the leakage points and recharge Capillary tube Regulate the flow if capillary tube and make the evaporating temperature appropriate if the evaporator is frosted Replace if blocked Repair joint if leaking Compressor The inlet and outlet valve of the compressor is damaged making the low pressure connected with the high pressure The refrigerating system can not produce high pressure and low pressure Replace the compressor after checking for the reason Heat sources Reduce if too many reverse valve The seal in valve is damaged making the low pressure 30 connected with the high pressure The refrigerating system can not produce high pressure and low pressure Replace the reverse valve after checking for the reason Drainage The drainage is blocked It will increase the efficiency in cooling mode but will cause the condenser to frost in heating mode PROBLEM POSSIBLE CAUSE REMARK The amount of the refrigerant is too much making the compressor load too big Refrigerant Stop instantly after Recycle and recharge the refrigerant Startup after checking for the reason The compressor is seized Replace after Compressor j checking for the reason Check the voltage Call an electrician N
25. he floor level The power cord must be connected to an independent circuit The yellow green wire must be grounded All side louvres of the cabinet must remain exposed to the outside of the structure m 6 2 Check off installation The setting conditions must be checked prior to initial starting The under mentioned items are especially important checking points when the installation is finished Grounding wire yellow Green is provided in the power cord The wire must be grounded Ensure that the unit is connected to a suitably rated and dedicated circuit To avoid vibration or noise make sure the air conditioner is installed securely gt Avoid placing furniture of draperies in front of the air inlet and outlet m 6 3 How to drain DRAIN HOSE OUTLET The base pan may overflow due to high humidity To drain the excess water remove the drain cap from the bottom of the unit if fitted and attach a drain hose not supplied 1 2 3 Take the drain pan which is packed with the unit Remove the rubber plug from the bottom of the base pan if fitted Install the drain pan over the area of the cabinet where you removed the plug and secure with 2 screws provided Connect the drain hose to the outlet located at the bottom of the drain pan You can purchase the drain hose or tubing locally to satisfy our particular needs Drain hose is not supplied 15 m 6 4 How to install m 6 4 1 In
26. i i LLLA 23 10 Explodin VIEW saan 32 Specification ME a a a aa m 1 Precaution 1 1 Safety Precaution To prevent injury to the user or other people and property damage the following instructions must be followed Incorrect operation due to ignoring instruction will cause harm or damage Before service unit be sure to read this service manual at first m 1 2 Warning Installation Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized service center Do not disassemble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire of electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock Use the correctly rated breaker of fuse There is risk of fire or electric shock Do not modify or extend the power cable There is risk of fire or electric shock Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury B
27. lamp 25 Propeller fan 6 15 Swing motor 26 Fan motor 6 17 Pipe temperature sensor 27 Holder for fan motor 6 18 Indoor temp sensor 29 Chassis assembly 6 19 Power cord assembly 30 Centrifugal fan 6 21 Main control board 31 Drain stopper 6 22 Capacitor 32 Air leading board 6 23 Transformer 33 Vent door JATI A 7 Side board of E Part box 7 FR KCR35 N1 F1E1 B4 MWF1 12HMN1 QB4 Part list Part Name Qty Part Name Qty 1 Front panel assembly 1 8 Evaporator 1 1 1 Front panel 1 9 Capillary assembly 1 1 2 Filter 1 11 Compressor 1 1 3 Front frame 1 13 Four Way valve assembly 1 1 4 Air out frame 1 14 Condensor 1 1 5 Link ventilation 1 15 Evaporator base 1 1 6 Horizontal louver 11 9 16 Wind inlet guide 1 1 7 Control panel 1 17 Fan shell base 1 2 Control cover 1 18 Fan shell 1 3 Knob 2 19 Front board 1 6 E Part box assembly 1 21 Buttstrap 1 6 11 E Part box 22 Rear separating board 6 12 Compressor capacitor 23 Cabinet assembly 6 13 Capacitor clamp 24 water drain pan 6 14 Wire joint 25 Propeller fan 6 15 Swing motor 26 Fan motor 6 16 Temperature controller 27 Holder for fan motor 6 16 Temperature controller 29 Chassis assembly 6 16 Temperature cont
28. n shell base 1 2 Control cover 1 18 Fan shell 1 3 Knob 2 19 Front board 1 6 E Part box assembly 1 21 Buttstrap 1 1 1 6 11 E Part box 22 Rear separating board 36 6 12 Compressor capacitor 1 23 Cabinet assembly 1 6 13 Capacitor clamp 1 25 Propeller fan 1 6 15 Swing motor 1 26 Fan motor 1 6 16 Temperature controller 1 27 Holder for fan motor 1 6 16 Temperature controller 1 29 Chassis assembly 1 6 19 Power cord assembly 1 30 Centrifugal fan 1 6 20 Main switch 1 31 Drain stopper 1 6 22 Capacitor 1 32 Air leading board 1 7 Side board of E Part box 1 33 Vent door 1 8 Evaporator 1 6 FR KC35 N1 Y F1E1 B4 MWF1 12CRN1 QB4 Part list Part Name Qty Part Name Qty 1 Front panel assembly 1 8 Evaporator 1 1 1 Front panel 1 9 Capillary assembly 1 1 2 Filter 1 10 Suction pipe 1 1 3 Front frame 1 11 Compressor 1 1 4 Air out frame 1 12 Discharge pipe 1 1 5 Link ventilation 1 14 Condensor 1 1 6 Horizontal louver 11 9 15 Evaporator base 1 2 Control cover 1 16 Wind inlet guide 1 4 Remote controller 1 17 Fan shell base 1 5 Display box assembly 1 18 Fan shell 1 5 1 1 19 Front board 1 6 E Part box assembly 21 6 11 E Part box 22 Rear separating board 6 12 Compressor capacitor 23 Cabinet assembly 6 13 Capacitor c
29. nlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on pr put anything on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage Do not insert hands or other object through air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury Do not drink the water drained from the product It is not sanitary could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the
30. o power M es if no within the limit Wiring Check the terminals Repair and correct if loose No cooling or heating Temperature setting Check and adjust the thermostat Main switch setting Check and adjust the main switch setting Reverse valve wire Check the resistance of reverse valve wire Replace the wire if short open or damaged Reverse valve If the reverse valve is blocked the heating mode will not perform Replace the reverse valve after checking the reason Compressor will not run while fan motor runs Voltage Check voltage Call Supply Authority if not within limits Check the wire connections if loose repair or replace the terminal If wires are off Wiring refer to wiring diagram for identification and replace Check wire locations If not per wiring diagram correct Main switch failure Check and replace the main switch if failure Capacitor Discharge capacitor before testing Check the capacitor Replace if not within 10 of manufacturers rating Replace if shorted open or damaged Thermostat Check the thermostat setting if not at the coolest 31 in cooling mode or the warmest in heating mode Set it if not Check the compressor for open circuit or ground Compressor If open or grounded replace the compressor Remove the cabinet and carefully rearrange Excessive noise Copper tubing tubing not to contact cabine
31. ply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage CAUTION Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drained away properly Abad connection may cause water leakage Keep level even when installing the product To avoid vibration of water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly 3 It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation 4 Operational Do not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health Do not use the product for special purposes such as preserving foods works of art etc Itis a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property Do not block the i
32. porator 1 9 Holder for fan motor 1 10 CE KC46 N1Y FE1 B4 MWF 16CRN1 QB4 NS Part list Part Name Qty No Part Name Qty 1 Front panel assembly 1 9 Holder for fan motor 1 1 1 Front panel 1 10 Centrifugal fan 1 1 2 Filter 1 11 Vent door 1 1 3 Front frame 1 12 Link ventilation 1 1 4 Louver holder 1 13 Air leading board 1 1 5 Horizontal louver 10 14 Wind inlet guide 1 1 6 Air out frame assembly 1 15 Fan shell base 1 2 Display box assembly 1 16 Fan shell 1 2 1 Control panel 1 17 Evaporator base 1 3 E Part box assembly 1 18 Front cover 1 3 11 E Part box 1 19 Front separating board 1 41 3 12 Swing motor 1 20 Connecting board 1 3 15 Capacitor 1 21 Buttstrap 1 3 17 Main control board assembly 1 22 Rear separating board 1 3 18 Pipe temperature sensor assembly 1 24 Rear cover 1 3 19 Transformer 1 25 Cabinet assembly 1 3 20 Indoor temp sensor assembly 1 28 Condensor 1 3 21 Wire joint base 1 30 Suction pipe 1 3 22 Power cord assembly 1 32 Drain stopper 1 3 23 Compressor capacitor 1 33 Compressor 1 3 24 Capacitor clamp 1 34 Chassis assembly 1 4 Control cover 1 35 Capillary assembly 1 6 Side board of E Part box 1 36 Evaporator 1 7 Propeller fan 1 37 Remote controller 1 8 Fan motor 1 11 CE KCR46 N1 FE1 B4 MWF 16HMN1 QB4 FET
33. remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards 2 Function and control panel m 2 1 Function Powerful cooling and heating heat pump and cooling Optional mode dry and auto Slide in and slide out chassis for the simple installation and service Side air intake side cooled air discharge Washable one touch filter and easy removed panel Super compact design Reliable and efficient rotary compressor is equipped Unique Quiet Design e Fresh air switch e Sleep mode e Swing function for some models Auto on time setting and cancel Anti freezing control in cooling mode Prevent the water being freezed on evaporator by sensing the evaporator pipe temperature in cooling mode Time Delay Safety Restarting is for approx 3 minutes Auto restart When the power supply is interrupted and then restore the air conditioners automatically restore the previous function setting Auto defrosting for cooling heating products 2 2 Control panel 1 9K Cooling only THERMOSTAT SELECTOR c TIMER FAR POWER SLEEP TEMP O FAN MODE HIGH 4 COOL WAIT THREE MINUTES BEFORE RESTARTING ii 9 Q Mechanical control panel Remote control panel 2 9K Heat Pump THERMOSTAT SELECTOR mi TIMER POWER ees A jd P HA 9 a cS 1 12 o o o WAT
34. roller 30 Centrifugal fan 6 19 Power cord assembly 31 Drain stopper 6 20 Main switch 32 Air leading board 6 22 Capacitor 33 Vent door Sy oe oe N 7 Side board of E Part box 8 FR KCR35 N1 Y F1E1 B4 MWF1 12HRN1 QB4 ap e 6 U Part list Part Name Qty No Part Name Qty 1 Front panel assembly 1 8 Evaporator 1 1 1 Front panel 1 9 Capillary assembly 1 1 2 Filter 1 11 Compressor 1 1 3 Front frame 1 13 Four Way valve assembly 1 1 4 Air out frame 1 14 Condensor 1 1 5 Link ventilation 1 15 Evaporator base 1 1 6 Horizontal louver 11 9 16 Wind inlet guide 1 2 Control cover 1 17 Fan shell base 1 4 Remote controller 1 18 Fan shell 1 5 Display box assembly 1 19 Front board 1 5 1 1 21 1 6 E Part box assembly 22 Rear separating board 6 11 E Part box 23 Cabinet assembly 6 12 Compressor capacitor 24 water drain pan 6 13 Capacitor clamp 25 Propeller fan 6 15 Swing motor 26 Fan motor 6 17 Pipe temperature sensor 27 Holder for fan motor 6 18 Indoor temp sensor 29 Chassis assembly 6 19 Power cord assembly 30 Centrifugal fan 6 21 Main control board 31 Drain stopper 6
35. ront panel 1 10 Centrifugal fan 1 1 2 Filter 1 11 Vent door 1 1 3 Front frame 1 12 Link ventilation 1 1 4 Louver holder 1 13 Air leading board 1 1 5 Horizontal louver 1 14 Wind inlet guide 1 1 6 Air out frame assembly 1 15 Fan shell base 1 2 Display box assembly 1 16 Fan shell 1 2 1 Control panel 1 17 Evaporator base 1 3 E Part box assembly 1 18 Front cover 1 R 3 11 E Part box 1 19 Front separating board 1 3 12 Swing motor 1 20 Connecting board 1 3 15 Capacitor 1 21 Buttstrap 1 3 17 Main control board assembly 1 22 Rear separating board 1 3 18 Pipe temperature sensor assembly 1 24 Rear cover 1 3 18 Pipe temperature sensor assembly 1 25 Cabinet assembly 1 3 19 Transformer 1 26 water drain pan 1 3 20 Indoor temp sensor assembly 1 28 Condensor 1 3 22 Power cord assembly 1 31 Four Way valve assembly 1 3 23 Compressor capacitor 1 32 Drain stopper 1 3 24 Capacitor clamp 1 33 Compressor 1 4 Control cover 1 34 Chassis assembly 1 6 Side board of E Part box 1 35 Capillary assembly 1 7 Propeller fan 1 36 Evaporator 1 8 Fan motor 1 37 Remote controller 1 44 11 Specification Project G110 C21 G110 C21 Code 220021403010 220021702880 Model MWH O9CRN1 QB4 MWF1 12CRN1 QB4 Power supply Ph V Hz 1Ph 220 240V 50Hz 1Ph 220 240V 50Hz Capacity
36. stallation of the housing FLASH OR SEAL AROUND EXTERNAL WALL FRAME OR ARCHITRAVE ES STURDY TIMBER FRAME ALL ROUND UNIT LY BRACKETS ED BELOW NOTES UNIT MAY BE SUPPORTED BY ASOLID FRAME FROM BELOW OR BY AHANGER FROM A SOLID OVERHEAD SUPPORT Preferred to install the unit into a timber framed wall partition or window Step1 Remove the air conditioner from it s packaging remove fixing screws and slide the air conditioner out of it s housing Refer to Installation Steps Step2 Prepare the hole in the wall so that the bottom of the housing is well supported the top has minimum clearance and the air inlet louvers have clearance as shown below in options A and B see below6 4 3 Holes from the outside through to the cavity should be sealed The housing should slope down towards the rear by about 5mm to allow water formed during operation to drain Step3 Install the housing into the wall and secure Ensure the foam seals are not damaged Flash seal or fill gaps around the inside and outside to provide satisfactory appearance and protection against the weather insects and rodents 16 6 4 2 Installation of the unit into the housing ENSURE LOUVRES ARE ENTIRELY OUTSIDE THE WAL STURDY TIMBER Uw SS SA DRAIN PAN STEADYING BRACKET IMBER FRAMED ONE PER SIDE Alternative method of installation if external support cannot be provided Slide the unit into the housing until it is firmly
37. t compressor shroud and barrier The unit starts and stops frequently Power supply The input power supply voltage is too low Call an electrician if not within limits Outdoor temperature When the outdoor temperature is too high the compressor will protect 10 Exploding view 1 FR KC26 N1 EE1 B4 MWH 09CMN1 QB4 7 W Part list Part Name Qty No Part Name Qty 1 Front panel assembly 1 14 Centrfugal fan 1 1 1 Front panel 1 15 Cover 1 1 2 Filter 1 16 Rear separating board 1 1 3 Front frame 1 17 Front separating board 1 1 4 Louver holder 1 18 Scroll 1 1 5 Horizontal louver 9 19 Vent door 1 1 6 Air out frame 1 20 Air leading board 1 1 7 Cover for Control panel 1 21 Seat 1 4 Knob 2 22 Guide seat 1 32 5 Control cover 1 23 Air inlet board 1 7 E Part box assembly 1 24 Evaporator base 1 7 11 E Part box 1 25 Condensator 1 7 16 Capacitor clamp 1 26 Capillary assembly 1 7 17 Compressor capacitor 1 27 Evaporator 1 7 18 Main switch 1 28 Left retaining plate of chassis 1 7 21 Capacitor 1 29 Right retaining plate of chassis 1 7 22 Temperature controller 1 30 Suction pipe 1 7 23 Power cord 1 31 Discharge pipe 1 10 E part box cover 1 33 Cabinet assembly 1 11 Propeller fan 1 35 Rubber 2 12 Holder for fan motor 1 36 Compressor 1 13 Fan motor 1 37 Chassis assembly 1
38. vaporator d Fin type code Hydrophilic aluminium e Tube outside dia and type mm 7 innergroove tube f Coil length x height x width mm 390x378x26 74 g Number of circuits 4 Condenser a Number of rows 1 5 b Tube pitch a x row pitch b mm 19 5x11 6 c Fin spacing mm 1 2 d Fin type code Unhydrophilic aluminium e Tube outside dia and type mm 5 innergroove tube 47 f Coil length x height x width mm 688x390x11 6 450x390x11 6 g Number of circuits 3 Refrigerant type g R410A 630 Design pressure MPa 4 2 1 5 Plug type 2 5x3 Thermostat type Remote control Operation temp C 17 30 Application area m2 21 35 Dimension W H D mm 660x430x687 Packing W H D mm 746x515x815 Net Gross weight Kg 49 53 5 Qty per 20 40 40 HQ 84 176 220 48
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