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Service Manual - BrandsMart USA

1. 5 2 9 5 3 rare 2 0 4 5 2 798 95 2488 __ 6 3 mes Gems oi 2225 _ 29 _ 9 36 zn _ 00 04 2o 39 seo 6 1 2 TNT S390 6 9 saze 41 49 6 1 s mse ssns asos 9 1 0 h ee N o
2. 3 2 1 21 BLUE GNE M 12 CNS OR WHITE BLACK E 95 E ANE AA aus YELLOW rh BLUE OR GREEN SHA H m 2 131 uH TRANSFORMER ee ch NOTES T he Color Of Power Supply Cord L N E Measures AAOC INDOOR UNIT Up To The IEC Standards BROWN BIUE Y G Or The UL 10 INIT Standards BLACK WHITE GREEN Outdoor MSR 07HR NB4 MSR O9HR NB4 17 Service manual INDOOR UNIT _ 444 OUTDOOR UNIT COMP FAN CAP This symbol indicates he element L 1 is optional actual shape shal be prevail Outdoor MSR 09HR NB6 MSR 12HR NB6 TO INDOOR UNIT Thissymbol indicates the element is ontional actual shane shall nre wal Outdoor MSR 12HR NB4 TO INDOOR UNIT PU RED amp OVERLOAD PROTECTION CAPACITOR CAPACITOR 271 This symbol indicates the element is optional the actual shape shall prevail 18 Service manual Indoor MSR 18CR NB4 STEP MOTOR POWER SUPPLY INDOOR MOTOR BROWN 135 321 12345 735 321 20 3 4 _ eee ee INDOOR UNIT _ TO OUTDOOR UNIT Outdoor MSR 18CR NB4 TO INDOOR UNIT OUTDOOR UNIT COMPRESSOR CAPACITOR FAN CAPACITOR Indoor MSR 18HR NB4 19 TRANSFORMER SENSOR PIPE TEMPERATURE SENSOR
3. 01 2 way vave Qutdoor unit A _ e r MET N _ 1 fi 1 d Open i 2 TETTRE aa 1 Charging cylinder Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Open the valves Low side on the charge set and charge the system with liquid refrigerant system cannot be charge with the specified amount of refrigerant if can be charged with a little at a time approximately 150g each timeO while operating air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the refrigerant to be discharged If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 5 Mounted the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m sure to check for gas leakage 28 Service
4. Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property Do not block the inlet 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 mew batteries or different types batteries
5. DISPLAY BOARD Service manual PERATURE NS0R PIPE TEWPERATURE SENSOR POWER SUPPLY INDOOR MOTOR N BROUN OR BLACK 2 TI TM 4 lr 21 12345 BLUE WHITE BLACK COMPRESSOR RELAY YELLOW BLUE DISPLAY BOARD Jd Y G TRANSFORMER x 12093 4 6 NOTES The Color Of Power Supply Cord L N Measures eigigiele Up To The IEC Standards BROWN BIUE Y G Or The UL Outdoor MSR 18HR NB4 TO INDOOR UNIT OUTDOOR UNIT COMPRESSOR CAPACITOR 20 Service manual 7 Installation details 7 1 Wrench torque sheet for installation Outside diameter 7 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet 7 3 Pipe and the elevation Pipesize 0000000 size Standard Max Additional Capacity i length Elevation refrigerant Btu h LIQUID 7K 9K 3 8 9 52 1 4 6 35 TERM Indoor unit Indoor unit Outdoor unit In case that more than Caution 21 Service manual Capacity is base on standard length and maximum allowance length is base of reliability Oil trap should be install per 5 7 meters 22 Service manual 7 4 Air purging of the piping and indoor unit Required tools Hexagonal wrench adjustable wrench torque wrenches wrench to hold the joints and gas leak detector Note The air in the
6. gt Cooling only LIQUID SIDE DE EXCHANGE EXCHANGE EVAPORATOR CONDENSER gt 4 ae COMPRESSOR gt Heat pump mode INDOOR UNIT OUTDOOR UNIT Jm CHECK VALVE LIQUID SIDE Heating Model only Le i ness 4 o WAY VALVE 1 CAPILLARY TUBE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER as a 4 2 i REVERSING ACCUMU VALVE LATOR Heating Model Only COMPRESSOR COOLING t HEATING Service manual 5 Operation limits 5 1 Cooling operation Outdoor unit air temp C DB Cooling Indoor air temp C DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 5 2 Heating operation Indoor air temp C DB Outdoor unit air temp C DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage 12 13 Service manual Service manual 6 Wiring diagram Indoor MSR 07CR NB4 STEP MOTOR ud POWER SUPPLY INDOOR MOTOR Y Ss Wi P e E E Cw m B mE a epp Y 8 TRANSFORMER TO QUTDOOR UNIT Outdoor MSR 07CR NB4 MSR 09CR N
7. o no m 1Ph 220 230V 60Hz 12000 1350 Cooling 12000 1300 10000 1020 4 45 2 88 5 m 5 3 2 m 5 L 5 Btu w h pui W A A A A A N m Mec Secun s Model 2 158236 2P15S236AIE 44R312AG FJSC 44R312AG FJSC Bras GDWATSUSHITA GD MATSUSHITA RECH RECH Compressor 930 1185 1185 Rated owen ata Model f weno Weis Weis Mex pem wad se mer wear Model 7 Weling 7 Weling quor ee Note noise date is base hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition Service manual gt 5 lt o 5 5 0 O O 0 0 c O O 5 c 5 O c O m 3 lt 3 5 MSR 12CR MSR 12HR MSR 18CR MSR 18HR Locked rotor Amp 32 UP3QE0591
8. It may cause fire failure of the product or electric shock e Do not store or use flammable gas or combustible near the 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 e 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 or disconnect the power supply cable There is risk of electric shock or fire Service manual Stop operation and close the window in storm or hurricane If possible remove the product from the 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 touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure e 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 e Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or elect
9. Fan i 9 T 8 7 7 louver opens to Standard Angle ANGLHEAT when power is on for the first time 8 8 Defrosting mode available for heating mode 8 8 1 Defrosting condition Defrosting starts when either of the following 080 Aand B are satisfied A The compressor keeps running for 40 minutes or more B The temperature difference of evaporator and room temperature meets one of the following Breeze Low fan Med fan High fan TL def TM def TH def TA TS 8 8 2 Calculate from the end of latest defrost evaporator high temp Protection only closes outdoor fan with the compressor still running Add up to 90 minutes 8 8 3 Defrosting time At condition If item is satisfied before A it would be regarded as severe frosting and the defrosting time is 10 minutes If item B is satisfied after item A the defrosting time is 7 5minutes 33 Service manual At condition the defrosting time is 10 minutes After three times continuous 7 5 minute defrost the fourth defrost time should be 10 minutes The circulation is as following 7 5 minutes 7 5 minutes 7 5 minutes 7 5 minutes defrost defrost defrost defrost 8 8 4 Ending condition of defrosting If one of following conditions is satisfied end the defrost and turn into heating mode A The defrost time has reached to 7 5 or 10 min
10. 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 remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards Service manual 2 Function Indoor unit Operation ON OFF by remote controller Sensing by room temperature Room temperature sensor Pipe temperature sensor Room temperature control Maintain the room temperature in accordance with the setting temperature Starting temperature control Indoor fan is delayed for 5 sec at the atartina Time Delay Safety control Restarting is for approx 3 minutes Indoor fan speed control high med low breeze Operation indication Lamps VLED Light up in the VLED for each operation mode Two direction air vane The unit will decide the louver direction according to operation mode oleep mode auto control The fan is turn to low speed cooling heating Turbo mode The unit will be turn off at the seventh hour humidificati ndependent dehumidification Anti cold function The function is usually used in rainy days in springtime or damp areas Prevent the cold wind at the beginning of unit Self diag function Defrost mode The function will be operate in any operation Auto restart fu
11. Service Manual PIA 9064A 65B PIA9066A 67B PIA12064A 65B PIA12066A 67B PIA18064A 18065B PIA 18066A 18067B 1 1 1 1 2 2 3 3 1 3 2 4 5 5 1 5 2 6 7 7 1 7 2 7 3 7 4 7 5 7 6 7 7 7 8 7 9 8 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 8 9 Content Content Precaution 2 Safety Precaution 2 Warning 2 Function 4 Dimension 6 Indoor unit 6 Outdoor unit 6 Refrigerant cycle diagram 11 Operation limits 12 Cooling operation 12 Heating operation 12 Wiring diagram 14 Installation details 21 Wrench torque sheet for installation 21 Connecting the cables 21 Pipe length and the elevation 21 Air purging of the piping and indoor unit 23 Pumping down Re installation 24 Re air purging Re installation 25 Balance refrigerant of the 2 way 3 way valves 26 Evacuation 27 Gas charging 28 Electronic function 29 Proper symbols and their meaning 29 Function 29 Protection 29 Fan only mode 30 Cooling mode 30 Dehumidifying mode 31 Heating mode 32 Defrosting mode available for heating mode 33 Auto mode 34 8 10 Force cooling function 35 8 11 Sleep mode 35 8 12 Auto restart function 35 8 13 Turbo mode 35 9 Model and Parameters 36 Content 10 Troubleshooting 37 10 1 Display board 37 10 2 Troubleshooting 37 10 3 Diagnostic chart 38 10 4 Resetting phenomenon often occurs during operation 39 10 5 Operation lamp flashes and Timer lamp off 39 10 6 Operation lamp flashes a
12. Net Gross weight 8 5 10 5 Model YDK23 4B MAR12090 9054 201 370 210 RPG13M Welling 35W 1520RPM 1 5UF 450V 1050 900 800 370 31 7 282 39 36 32 790x275x190 865 350 265 8 5 10 5 YDK23 4B TongbaoB175 145B 141C 25uF 370V 25uF 370V N O Y e RPG13M Welling 35W 1520RPM 1 51 450 1150 1000 850 430 373 318 40 37 33 790 275 190 865 350 265 8 5 10 5 YDK23 4B RPG13M Welling 35W 1520RPM 1 5 450 1150 1000 850 430 373 318 40 37 33 790x275x190 865x350x265 8 5 10 5 YDK23 4B zy lt a 5 3 2 5 UJ lt 15 6 5 3 S D 5 5 oO UJ X NI amp BA UJ 9 22 9 T 5 Q 2 9 2 D 2 77 5 Cis Q NO no lt 2 x x 2 0uF 450V 2 0uF 450V 2 0uF 450V Capacitor 2 0uF 450V peed ion WxHx 685x430x260 ing WxHxD 795x495x345 Net Gross weight 21 24 R22 500 Liquid side Gas mm inch 5 35 9 53 Max difference in 1250 1250 1250 685 430 260 795 495 346 22 25 R22 530 685 430 260 795 495 347 24 27 22 560 685 430 260 795 495 348 25 28 22 560 cic OIO OIO 5 9 oO d 5 92 2 5 l
13. 3 way valves are set to the open position Connect the charge set to the 3 way valve s service port Leave the valve on the charge set closed Connect the charge hose with the push pin to the service port Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher than 0 1Mpa discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa If this is the case it will not be necessary to apply a evacuation Discharge the refrigeration gradually if it is discharged too suddenly the refrigeration oil sill be discharged 26 Service manual 7 8 Evacuation Outdoor unit a T 4 2 A I Procedure Connect the vacuum pump to the charge set s centre hose Evacuation for approximately one hour Confirm that the gauge needle has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump Disconnect the charge hose from the vacuum pump Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle 27 Service manual 7 9 Gas charging Indoor unit Liquid side m
14. If the gas leaks do not stop when the connections retightened repair the location of the leak discharge all of the gas through the service port and then recharge with the specified amount of gas from a gas cylinder Service manual 7 5 Pumping down Re installation Outdoor unit L valve x 1 Procedure Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use a hexagonal wrench to operate the valve stems Operate the unit for 10 to 15 minutes Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve Connect the charge hose with the push pin to the gas service port Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose Set the 2 way valve to the close position Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indicating 0 3 to 0 5Mpa Disconnect the charge set and amount the 2 way and 3 way valve s stem nuts and service port caps Use a torque wrench to tighten the service port cap to a torque of 1 8 kg m Be sure to check for gas leakage 24 Service manual 7 6 Re air purging Re installati
15. T36 UP3QE0591 T36 UP3QE0591 T39 UP3QE0591 T39 MSRHi2CR 9 9 Capacity 70 pz lx Ratedcurrent 9892 cop e u oo dL Proscar rotary tary GU TOSHIBA compressor Rated current RL 58 UPSQEO591 T36 591 739 UP3QE0591 T39 Refrigerant oil 480 480 480 480 Eu RPG13M RPG13M RPG28E RPG28E 2 a gt 3 4 UJ lt 3 lt m7 5 0 5 Cis 3 UPSOEOSTTGS wes wem weirs wesse voes e Bax woms weie Wee Max diteence in m 5 ss The noise date 15 base on hemi anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition The above design and specifications are subject to change without prior notice for product improvement 10 Service manual Service manual 4 Refrigerant cycle diagram
16. indoor unit and in the piping must be purged If air remains in the refrigeration piping it will affect the compressor reduce the cooling capacity and could lead to a malfunction of unit Be sure using a torque wrench to tighten the service port cap after using the service port so that it prevents the gas leakage from the refrigeration cycle C Outdoor unit a Mounted the valve stem nuts to 2 way and 3 way valves Check for gas leakage At this time especially check for gas leakage from the 2 way and 3 way stem nuts and from the service port Procedure Recheck the piping connections Open the valve stem of the 2 way valve counterclockwise approximately 90 wait 10 seconds and then set it to closed position Be sure to use a hexagonal wrench to operate the valve stem Check for gas leakage Check the flare connection for gas leakage Purge the air from the system Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute Use torque wrench to tighten the service port cap to a torque of 1 8 kg m 18n m Set the 3 way valve to the opened position 23 Caution If gas leakage is discovered in step 3 above take the following measures If the leaks stop when the piping connections are tightened further continue working from step 4
17. manual 8 Electronic function 8 1 Proper symbols and their meaning TA Indoor ambient temperature TE Indoor evaporator temperature TS Setting temperature through the remote controller Issec Self protection amp of compressor continue three seconds until turns off the compressor Self protection amp of compressor continue five minutes until turns off the compressor Self protection amp of outdoor fan indoor fans when they change from higher wind to lower wind Amp self protection return value THpernosr High wind defrosting temperature difference TMbpernosr Middle wind defrosting temperature difference TLpernosr Low wind defrosting temperature difference TE1 Anti cold wind from Fan Off to Breeze temperature TE2 Anti cold wind from Breeze to Setting Fan Speed temperature TE3 Anti cold wind from Setting Fan Speed to Breeze temperature TE4 Anti cold wind from Breeze to Fan Off temperature TE5 Evaporator low temperature protection entering temperature TE6 Evaporator low temperature protection restoring temperature TE7 Evaporator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature TE9 Evaporator high temperature protection restoring temperature 8 2 Function Remote receiving Testing and forced running Position set for indoor unit wind vane LED displaying and alarm On or off Timer Protection for the compress
18. B4 TO INDOOR UNIT COMPRESSON m COMPRESSON CAPACITON D NOTES This symbol indicates the element is optional the actual shape shall prevail 14 Service manual Intdoor MSR 09CR NB4 MSR 12CR NB4 MSR 12CR NB6 a tad BROWN BLACK POWER SUPPLY J OR WHITE x B rc lt gt Y G OR GREEN 2 i oh T LCI C BLACK I i I L TO OXYGEN PERPE JX1 1 200 3 4 DISPLAY BOARD INDOOR UNIT TO OUTDOOR UNIT COMPRESSOR RELAY 02 L a GENERATOR RED mn a 0 TO NOTES The Color Of Power Supply Cord L E Measures Up To The IEC Standards BROWN BIUE Y G Or The UL Standards LACE WHITE GREEN 2 The Functions In The Rectangle Are Available For Particular Air condition Indoor MSR 09CR NB6 15 Service manual 4 E BROWN OR BLACK 5 POWER SUPPLY BLUE OR WHITE 5 pV dr AE Y G OR GREEN 2 m i 1 LJ L q 1 RED m BLACK 3 4 COMPRESSOR RELAY A i n DN 5 55 e erere e NL P IRCO SNITCH 7 rr m MEM 1 200 46 ENRICHMENT DISPLAY BOARD INDOOR UNIT T
19. O OUTDOOR UNIT NOTES The Color Of Power Supply Cord L N E Measures Up To The IEC Standards BROWN BIUE Y G Or The UL Standards BLACK WHITE GREEN 2 The Functions In The Rectangle Are Available For Particular Air condition Outdoor MSR 09CR NB6 MSR 12CR NB4 MSR 12CR NB6 CAPACITOR 1 This symbol indicates e the element is optional e i the actual shape shall be prevail Indoor MSR 09HR NB4 MSR 09HR NB6 MSR 12HR NB4 MSR 12HR NB6 16 Service manual SENSOR BROWN OR BLACK POWER SUPPLY Dai OR WHITE Y G OR GREEN CL ROOM TENPERATURE SENSOR PIPE TEMPERATURE j MOTOR STEP MOTOR N FNS CN3 gt CURRENT DETECT 3 4 COMPRESSOR RELAY CN13 1 02 L 02 N RED 24 ss 1 ALL 2 p MIRCO WIRE CONTROLLER OF ano bl 8 LAIR CONDITIONER ENRICHMENT Dem zi INDOOR UNIT MAL bu qM TO OUTDOOR UNIT NOTES 1 The Color Of Power Supply Cord L N E Measures Up To The IEC Standards BROWN Y G Or The UL Standards BLACK WHITE GREEN 2 The Functions In The Rectangle Are Available For Particular Air condition Indoor MSR 07HR NB4 STEP MOTOR DOWER SUPPLY INDOOR MOTOR Be bn BROVN COR BLACK E gt i 2 1 12345 21
20. e YES Power supply circuit has problems 105 Operation lamp flashes and Timer lamp off Is connector connection good Is voltage being applied to the fan motor Yes Indo F PCB is defective Fan motor is defective 10 6 Operation lamp flashes and Timer lamp on Is connector connection good Replace the sencor 39 the connector Service manual 10 7 Operation lamp off and Timer lamp flashes Operation lamp off and Timer lamp flashes After changing the main control board check if the failure realease No Indoor is defective NO The voltage of power supply is too low less than 187V Outdoor unit fault such as the compressor Power supply fault 10 8 Operation lamp on and Timer lamp flashes EEROM error indoor PCB is defective 10 9 Operation lamp flashes Timer lamp flashes This is alarm signal when the main chip can t detect over zero signal When such failure occurs the main control board must have fault 11 41 Service manual Characteristic of temperature sensor o w 9 1 4 0 9 _ 19 isi 46 522438 2 436 1 4usns 2 ns 4 0 a sw 9 _ nse wae _ 2 samo 09000 a 2 ss 9x45 sa 2959 _ 3 saxo
21. eed and reach the set temperature more quickly After running 20 minutes in turbo mode the indoor fan will automatically recover the preset speed 35 9 Model and Parameters Service manual Model MSR 07C H R B6 MSR 09C H RRB4 MSR 12C H R4 B6 MSR 18C H RRB6 IRESTORE 1 2 domo 28 28 34 C 34 C mo o 7T o 26 T5 75 we 10 7 TE8 CU we 0 2 9 ANGLOFF TMDEFROST 16 C 17 C 36 18 C 19 C 18 C 19 C 20 C 19 C Service manual 10 Troubleshooting 10 1 Display board 5 4 a OPERATION TIMER Operation The indicator flashes once every second after power is on and illuminates when the air conditioner is in operation Timer indicator The indicator illuminates then TIMER is set ON PRE DEF indicator For cooling amp heating mode only The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating At this time PRE DEF indicator illuminates Auto indicator This indicator flashes when the air conditioner is in AUTO operation ECON indicator This indicator illuminates while the air conditioner is in economic operation 10 2 Troubleshooting Operation Timer Failure phenomenon lamp lamp Indoor fan speed has been out of control for over 1 minute EE WERE AN Indoor room temp or evapora
22. n heating mode but it is closed in defrosting mode 4 way valve must delay 2 minutes compared with compressor if the compressor changed into non heating mode or turned off 4 way valve doesn t delay in dehumidifying mode 8 7 2 Generally the outdoor fan is turned off with the on off action of compressor in heating mode except for the defrosting mode or the end of defrost 8 7 3 Action of compressor and outdoor fan motor at heating mode compressor must run for 7 minutes after starting and then judge temperature Meanwhile other protections are still valid Compressor and outdoor fan off Room temp down Room temp up Compressor and outdoor fan on Ts Ts 2 Ts 3 This parameter can be changed from 0 to 3 8 7 4 Indoor Fan actions at heating mode Indoor Fan can be set at HIGH MID LOW AUTO by using a remote controller but Anti cold wind function prevails Anti cold wind control function at heating mode Tzindoor exchanger temp Setting fan speed Breeze T temp down Fan off 4 8 7 5 Auto wind at heating mode T indoor temp 32 Service manual Low fan Room temp down Room temp up Med fan 0 2 T Ts 8 7 6 Indoor evaporator high temperature protection at heating mode Tzindoor exchanger temp T temp down Compressor off Fan off Compressor on Fan off T temp up Compressor on
23. nction Air flow Direction control The louver can be set at the desired position or swing up and down automatically Flexible wiring connection Auto mode The unit can be change by the room temperature Easy clean panel Service manual Outdoor unit Power relay control The unit has 3 mins delay between continuously ON OFF operations Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode 4 way valve control It is only operated in the heating operation mode except defrosting operation Discharge pipe temperature protect Anti rust cabinet Valve protection cover Service manual 3 Dimension 3 1 Indoor unit 7KB4 s 6 5_ Service manual e ct 5 Capacity Bun 0 co w o 394728650 Capacity 6107 Compressor Rated current RLA Locked rotor Amp MAR12090 9054 Capacitor 20 370 UF RPG13M Welling 35W 1520RPM UF Capacitor 1 5 450 peed hi mi lo 1050 900 800 Indoor air flow Hi Mi Lo 370 317 282 Indoor noise level Hi Mi Lo dB A 39 36 32 Dimension WxHx 790x275x190 Packing mm 865 350 265
24. nd Timer lamp on 39 10 7 Operation lamp off and Timer lamp flashes 40 10 8 Operation lamp on and Timer lamp flashes 40 10 9 Operation lamp flashes Timer lamp flashes 40 11 Characteristic of temperature sensor 41 Service manual 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 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 e 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
25. o button or the switch In forced auto status the A C operates at remote control mode with a set temp of 24 C 8 11 Sleep mode 8 11 1 The sleep function is available at cooling heating or auto mode 8 11 2 Cooling The set temperature rise 1 per hour Two hours later the set temperature will maintain as a constant and the fan speed is kept at low speed The total time is 7 hours after 7 hours the unit stops 8 11 3 Heating The set temperature decrease 1 C per hour Two hours later the set temperature will maintain as a constant and the air circulation is kept at low speed Anti cold function takes precedence over all The total time is 7 hours after 7 hours the unit stops 8 11 4 Auto After an hour running under economic mode the set temp will rise 1 C if it is under cooling mode the set temp will decrease 1 C if it is under heating mode the set temp will be changeless if it is under fan only mode the condition will be the same after the air conditioner running under economic mode after 2 hours and during the next time the set temp do not change The total time is 7 hours after 7 hours the unit stops 8 12 Auto restart function In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure when power returns 8 13 Turbo mode In cooling mode when pressing the turbo button on the remote controller the unit will enter turbo mode with ultra high sp
26. on Liquid side Quicoor unit X 3 way Valve Charging cylinder Procedure Confirm that both the 2 way and 3 way valves are set to the closed position Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minutes repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve Check the gas leakage Check the flare connections for gas leakage Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0 3 to 0 5 Mpa Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 25 Service manual 7 7 Balance refrigerant of the 2 way 3 way valves E Outdoor unit Indoor unit Liquid side a ms LI 2 valve i Procedure Confirm that both the 2 way and
27. or Current protection High temperature protection of indoor heat exchanger at heating mode Auto defrosting and heating recovery at heating mode Anti cold air at heating mode Anti frozen at cooling mode 8 3 Protection 8 3 1 3 minutes delay at restart for compressor 8 3 2 Sensor protection at open circuit and breaking disconnection 8 3 3 Fan Speed is out of control When Indoor Fan Speed is too high higher than 2100RPM or too low lower than 300RPM lasting 50 seconds the unit stops and LED displays failure information and can t returns to normal operation automatically 8 3 4 Cross Zero signal error warning If there is no Cross Zero signals in 4 minutes the unit stops and LED displays failure information and can t returns to normal operation automatically 8 3 5 The current protection of the compressor 29 Service manual Goamnrnsssor tum cf after 5 second later Simin Compressor atl Current up after 5 minute ater fan Tha outdoor fan turn Of healing natora Tha Indoor tan turn Indoor low Speed compressor outdoor fan On If compressor turns off for continuously 4 times due to current protection in 5 minutes from Compressor On the unit stops and LED displays failure information and can t returns to normal operation automatically 8 4 Fan only mode Fan speed is high mid low Auto 8 5 Cooling mode The 4 way valve is clo
28. ric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock e When the product is not be used for a long time disconnect the power supply 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 e 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 A bad 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 2 Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Service manual gt 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
29. risk of fire electric shock explosion or injury Be 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 e Be sure the installation area does deteriorate with age 2 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 a long time when the humidity is very high and a door or a windows 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
30. sed at cooling mode The action of the compressor and the outdoor fan T indoor temperature Compressor on outdoor fan on Room temp down Room temp up Compressor off outdoor fan off 1 T Ts Auto fan at cooling mode 30 Service manual Mid fan High fan Room temp up Room temp down Low fan 1 3 5 Anti freezing control to indoor evaporator at cooling mode evaporator temp Compressor and outdoor fan on EVAP temp down EVAP temp up Compressor and outdoor fan off after 5 mins TES TE6 T 8 6 Dehumidifying mode 8 6 1 The 4 way valve is off in dehumidifying mode 8 6 2 Compressor and Indoor Fan actions in dehumidifying mode C B A 0 2 TA TS Compressor and Outdoor Fan LOW 6minutes BREEZE OFF 4minutes LOW 5minutes BREEZE OFF 5minutes C LOW 4minutes BREEZE OFF 6minutes Repeat on and off cycle 8 6 3 Low room temperature protection When room temperature decreases to below 10 compressor and outdoor fan will stop indoor fan is Breeze Dehumidifying operation will be resumed when room temperature restores to over 13 8 6 4 At dehumidifying mode the anti freezing function of the indoor heat exchanger is the same as 31 Service manual that of cooling mode 8 6 5 At dehumidifying mode the action of fans of indoor is the same as that of air only mode 8 7 Heating mode 8 7 1 Generally the 4 way valve is open i
31. t o O Q 00 gt O O CU o O 25 06 35 09 53 06 35 09 53 06 35 09 53 UO D ole 510 Ojo 2 Qo lt Clio olco JJ D mb D 2 lt D gt lt A D D 2 mr 5 17 30 p Q e 9 O m lt NJ a e a o MM m en TaN 17 30 17 30 18 45 14 20 17 30 N 2 D N 2 C1 10 14 10 44 14 20 gt gt io 5 3 9 O 1o 2 5 Co al9 3 The noise date is base hemi anechoic chamber during actual operation these values normally somewhat different as a result Service manual of ambient condition gt 5 lt o 5 5 0 O O 0 0 c S 5 gt c 5 O c O pm 3 lt 3 5 MSR 09CR Ph V Hz 1Ph 220 230V 60Hz Capacity 9000 Input 1050 A En KM Capacity Btu h MSR 09HR 1Ph 220 230V 60 2 9000 1050 MSR 12CR 1Ph 220 230V 60Hz 12000 1350 5 O lt O MID AB O 91
32. tor sensor is open circuit or short circuit On Over current protection ofthe compressoroccurs4times X EEROM error j x Nooverzerosigna ge X Extinguish Je Flash at 5Hz 37 Service manual 10 3 Diagnostic chart After energizing no indicator is lighted and the air conditioner can t be operated After energizing the air conditioner can not be operated Check if AC 220V power supply outputs to indoor PCB Yes Check if AC 220V exists at the primary coil of transformer 1l 1 Indoor PCB is defective Check if AC 14 5V exists at the secondary coil of transformer Yes No Y Take off the secondary plug of transformer and then check if AC 14 5V exists at the secondary coil of transformer NO Yes Indoor PCB is defective Indoor PCB is defective 38 Service manual 104 Resetting phenomenon often occurs during operation That is automatically entering to the status when power is on The reason is that the instantaneous voltage of main chip is less than 4 5V Check according to the following procedure Resetting phenomenon often occurs during operation Yes After changing indoor PCB check if the failure realease 2 7 Yes Indoor PCB is defective After changing indoor fan motor check if the failure realeas
33. utes B The compressor current has reached to or above differs in different models 8 8 5 Defrosting Actions Defrost 10 or 6 minutes Compressor i 4 25s T Bess 4 way valve p 25 Outdoor fan Indoor fan J 106 8 9 Auto mode 8 9 1 The air conditioner automatically selects one of the following operation modes cooling heating or fan only according to the temperature difference between room temperature TA and set temperature TS Heating fan only at cooling only Fan only Cooling 1 2 TA TS 8 9 2 The indoor fan blows automatically in corresponding selected mode 8 9 3 The motion of indoor fan s blade should accord with the selected operation mode 8 9 4 One mode should be carried out for at least 15 minutes once selected If the compressor cannot start for 15 minutes reselect the operation mode according to the room temp and set temp or reselect 34 Service manual when the set temp varies 8 10 Force cooling function 8 10 1 Select forced cooling function with the forced cooling button or the switch 8 10 2 The compressor is unconditionally turned on after 30 minutes cooling operation whose fan mode is set as low the A C operates at the DRY mode with a set temp of 24 C 8 10 3 All protections of remote control cooling are available at forced cooling operation 8 10 4 Forced Auto function Select forced auto function with the forced aut

Service Manual - BrandsMart USA

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