Servive Manual for Vertu R410A
Contents
1. 16 6 6 Re air purging Re Installatior c nacer E La err eroe 17 6 7 Balance refrigerant of the 2 way 3 way valves 18 G28 EVACUATION 19 6 9 Gas charging aA 20 Electronic TUNGHOM EE 21 7 1 Electronic control working 1 21 7 2 Proper symbols and their 21 TES FUNCTION col enter 22 7 4 Proteci n ianaeaieo e A 22 7 ModE 23 23 Zal 24 TO Hean MO dA 24 7 9 Defrosting mode available for heating mode ennen nenneneneenennereenneneneneneneneenverennnenenn 25 ns 26 Zld Forcexcooling TUDnCtlOn c ae A e EEE 26 Sleep modereren rara NE Ob et ne cr 27 7 13 Auto restart eco e PO ERO RR E n o aene ds 28 7 14 lonizer air clean 28 Model and Parameters 2 1 rcccrresiiascs secca ccu aaa X XIXIX 29 _ _ ____ __ _ 30 9 1 LCD Display bOaFrd 30 9 22. d 5 SERIE 79 2 current tarting current 31 8 34 5 31 8 34 5 A140X2C 4F TI PA200X2CS 4KUI ROTARY Rotary TOSHIBA GD Toshiba apacity Bur 11567 11618 16787 16923 Input 1145 1185 1670 1720 Compressor Rated current RLA 53515 7 81 7 5 Locked rotor 31 8 34 5 hermal protector PE T56 Internal apacitor 45UF 370V Refrigerant oil 40 5 750 25 RPG28D Brad 17 Weling Weling EN 125011001000 Indoor air flow HiMiLo m3h 60 60 8007060 800700600 Moe 1 voer 0895 Branda Refrgeranttype RATA o _ 6410 1050 __6410V1050 RAAM differenceinlevel m 8 00 10 Brand gt B B Note The noise date is 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 Service manual Refrigerant cycle diagram gt Cooling only UU CAPILLARY TUBE HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER GAS SIDE COMPRESSOR Heat pump mode INDOOR UNIT OUTDOOR UNIT A CHECK VALVE LIQUID SIDE Heating Model only Ww
3. 80 eating Ratedcurrent 29 397 eco 980 _ e _ Max cure ______ 5 5 __ T e M PAS2XtC4DZDE PABZXICADZOE PATOBX1C 4FTDE PATOBX1C 4FTDE Brand TOSHIBA TOSHIBA TOSHIBA TOSHIBA _ bonor Thermal protector 135 135 241 135 135 241 160 135 241 160 135 241 moop RPGXD Brand 1 en ee Capacitor f wr 12 12 J 12 X0C46 X0CLC246L Brand Refrigeranttype Raoa _ 6410V800 R4toweoo dfference inleve m 8 gt Note The noise date is 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 Service manual ELEN ZN MSVI TSCRNTGCOF MSVI T8HRNT QCOF Rated current 48 mm 11 0 3 22 110 322 1053 07 105307 Hip 1 19000 1050 1730 mm a He e 822 o um 1 2102 71 EEEN ee PA140X2C 4FT_ Cooling apacity Input Rated current I
4. CAPILLARY TUBE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER GAS SIDE REVERSING VALVE Heating Model Only COOLING HEATING VALVE COMPRESSOR Service manual 4 Operation limits Cooling operation Outdoor unit air temp C DB 45 40 Dry Cooling 35 30 25 20 5 10 15 20 25 30 35 40 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 Heating operation Indoor air temp DB 35 30 25 20 15 5 5 15 25 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 9 Service manual 5 Wiring diagram MSV1 07CRN1 MSV1 09CRN1 MSV1 12CRN1 Indoor unit WIRING DIAGRAM INDOOR UNIT SWING MOTOR MD ANTON GENERATOR SWITCH BOARD _ CONTROL TOP AIR INDOOR MOTOR 3 o IE T HN LET LOWER BROWN ve LOW GREEN IMS BLUE Kei POWER SUPPLY 1 2 135 321 32 1 12345 12345 e 12 s 321 32 1 12345 12345
5. Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation 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 Do not use the product for special purposes such as preserving foods works of art etc It is 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 cle
6. 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 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 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 su
7. outdoor unit INDOOR UNIT OUTDOOR UNIT 1 203 4D BLUE Y amp G OV ROADS BLACK Lae BL ACK ACK RED COMPRESSOR RE D a FAN RED MO TO R Y amp G BLUE COMPRESSOR CAPACITOR FAN CAPACI TOR 1 BOARD DISPLAY Sa AMBIENT SENSOR EVAPORATOR SENSOR Service manual MSV1 18CRN1 QCOF Indoor unit Outdoor unit INDOOR UNIT OUTDOOR UNIT 2 gt Y amp G RED BLACK BLACK OVERLOAD i RELAY P a COMPRESS ok A P FAN X BLU E lt T R TA WHITE EN BLUE Y G E Rm d COMPRESSOR CAPACITOR FAN CAPACITOR 12 3 N j Service manual MSV1 18HRN1 QCOF Indoor unit Outdoor unit INDOOR UNIT OUTDOOR UNIT RED BLUE BLUE Y amp G 5 4 pr ACK TA OVERLOAD RELAY BLACK BLACK x COMPRESSO 0 MOTOR 7 RED Y G JS gt WHITE _ x BLUE _ CAPACITOR FAN CAPACITOR Service manual 6 Installation details 6 1 Wrench torque sheet for installation Outside diameter 96 35 952 eii 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet 6 3 Pipe length and the elevation Capacity Pipe size
8. 2 5 3 This parameter be changed from 0 to 3 7 8 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 T indoor exchanger temp 24 Service manual Setting fan speed Breeze T temp down Fan off 4 TE1 TE2 7 8 5 Auto wind at heating mode T indoor temp Med fan Room temp down Room temp up High fan 0 2 T Ts 7 8 6 Indoor evaporator high temperature protection at heating mode T indoor exchanger temp T temp down Compressor off Fan off Compressor on Fan off T temp up Compressor on 4 Fan on i 9 8 7 T The louver opens to Standard Angle ANGLHEAT when power is on for the first time 7 9 Defrosting mode available for heating mode 7 9 1 Defrosting condition Defrost starts when either of the following T3 lower than 0 C lasts for more than 40 minutes provided that the time period then the temperature is lower than 3 consecutively reaches 3 minutes 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 7 9 2 Conditions of defrost ending 25 Service manual Defrosting ends when either of the following The time gets
9. EN ESAE 18K 1 2 912 7 1 4 96 35 5 8 15 30 Indoor unit i In case that more Indoor unit than 5m Outdoor unit Caution Capacity is base on standard length and maximum allowance length is base of reliability Oil trap should be install per 5 7 meters Service manual 6 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 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 Procedure Indoor unit 22 Liquid n mam Outdoor unit X S IL 4 eee 2 way M _ 2 A lt NEN Gas side gt gt AM 1 Recheck the piping connections 2 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 3 Check for gas leakage Check the flare connection for gas leakage 4 Purge the air from th
10. Indoor Unit _ 31 9 3 Diagnostic CMA CEN 31 9 4 Resetting phenomenon often occurs during operation 32 9 5 Operation lamp flashes and Timer lamp off sees enne nnne nnne 32 9 6 Operation lamp flashes and Timer lamp On 33 9 7 Operation lamp off and Timer lamp e ite ete bete De Ee 33 9 8 Operation lamp on and Timer lamp flashes oce ote e Ce eee oe ene ee ue ecu 33 9 9 Operation lamp flashes Timer lamp flashes nee tnter Ren BER ER peur deed 33 zi 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 gt 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 nstall the panel and the cover of contro
11. purging the air use a torque wrench to tighten the flare nut to on the 2 way valve 7 Check the gas leakage 8 Check the flare connections for gas leakage 9 Discharge the refrigerant 10 Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0 3 to 0 5 Mpa 11 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position 12 Be sure to use a hexagonal wrench to operate the valve stems 13 Mount the valve stems nuts and the service port 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 Service manual 6 7 Balance refrigerant of the 2 way 3 way valves Outdoor unit EEN XA S V Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open position 2 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 3 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 gr
12. to 10 minutes T3220 C The circulation is as following 7 9 3 Defrosting Actions Defrost 10 or 6 minutes Compressor 1 1 25s 11 5 4 way valve D came 11 2s Outdoor fan a Indoor fan en 106 222 Remark when the evaporator pipe temperature sensor more than TE16 the indoor fan start to run 7 10 Auto mode 7 10 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 Fan only Cooling 1 2 TA TS 7 10 2 The indoor fan blows automatically in corresponding selected mode 7 10 3 The motion of indoor fan s blade should accord with the selected operation mode 7 10 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 when the set temp varies 7 11 Force cooling function 7 11 1 Select forced cooling function with the forced cooling button or the switch 7 11 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 7 11 3 All protections of remote control cooling are available at forced cooling operation 7 11 4 Forced Auto funct
13. 2 15 ANGLCSL 8 8 8 10 ANGLCSH 40 40 40 40 ANGLHSL 8 8 8 10 ANGLHSH 40 40 40 40 ANGLDL 8 8 8 10 ANGLDH 190 190 190 190 ANGLFL 50 50 50 60 ANGLFH 155 155 155 150 HSPEEDH 1000 1080 1280 1280 HSPEEDM 900 950 1060 1100 HSPEEDL 800 800 900 1000 HSPEEDS 750 750 750 900 CSPEEDP 1080 1080 1280 1280 CSPEEDH 1040 1040 1260 1250 CSPEEDM 900 900 1080 1100 CSPEEDL 800 800 900 1000 CSPEEDS 750 750 750 900 29 Service manual 9 Troubleshooting 9 1 LCD Display board ON OFF indicator This indicator illuminates when the air conditioner is in operation PRE DEF Indicator For Cooling amp Heating models only 4 This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode Turbo indicator Turbo This indicator illuminates when the air conditioner is in turbo operation TEMPERATURE indicator Usually it displays the temperature settings TIMER indicator This indicator illuminates when TIMER is set ON OFF FAN SPEED indicator gt E TS Saw 5 anna v This indicator illuminates when change the fan speed 30 Service manual 9 2 Indoor Unit Error Display Display STATUS E1 EEPROM error E2 Zero crossing examination error E3 Fan speed beyond control E4 Over current protection of the compressor occurs 4 times E5 Open or short circuit of Room temperature sensor E6 e
14. CN13 CMI2 CN4 DISPLAY EAE CURRENT INDUCTOR MAIN BOARD COMPRESSOR RELAY VI es Inst AMBIENT SENSOR 1234 eal oe SENSOR RED BLACK YELLOW GREEN 2 0 Ji 12003 4 5 WAY TERMINAL plplp ale lele INDOOR UNIT TRANSFORMER TO OUTDOOR UNIT outdoor unit TO IHDOON WIT OUTDOOR 1 AN YE LLOW GREEN 25 BLACK OVERLOAD ae RED BLACK RED DEPENDING L ON MODELS C RED FAN ED compresson M Ys 00 SIE COMPRESSON CAPACLTON FAN CA PACT TON YELL W 5 FEEN MSV1 07HRN1 MSV Indoor unit WIRING DIAGRAM INDOOR UNIT Service manual 1 09HRN1 MSV1 12HRN1 CONTROL TOP AIR GENERATOR SWITCH BOARD SWING MOTOR INDOOR MOTOR IV 55 Den 13 i aan BLUE e POWER SUPPLY II 21 135 321 321 12345 12345 _ II 2 135 321 EE 1 12345 12348 CNIS P3 M CURRENT INDUCTOR MAIN BOARD 00 gt jpg COMPRESSOR RELAY _ YELLOW 8 1234 1 2 RED BLACK GERRN oe P YELLOW GREEN I 3 4 m 5 WAY TERMINAL 2 9 INDOOR UNIT TO OUTDOOR UNIT
15. Http www mideaaircon com idea Service manual Room airconditioner Split Wall Mounted Type Applied to MSV1 07HRN1 MSV1 09CRN1 MSV1 09HRN1 MSV1 12CRN1 MSV1 12HRN1 MSV1 18CRN1 QCOF MSV1 18HRN1 QCOF NOTE Before servicing the unit please read this at first Always contact with your service center if meet problem 1 2 3 4 5 6 Content Content 006800 sen bestbekeken E A 1 1 1 58 CLV I gt 668061 dh ode LM nen lade 1 Rn 1 ALS FUNGON ised ard eed eee te d b d 4 dc E Te 5 __ ____ _ __ _ _ 6 Operation MAS 9 Wiring Ee Le De Up 10 Installation benenden 14 6 1 Wrench torque sheet for installation i esteet tiee eee ea eee ateetan et 14 6 2 Conmecting the Cables bat bte etica 14 6 3 narren _ _ 14 6 4 Air purging of the piping and indoor unit emere 15 6 5 Pumping down
16. adually if it is discharged too suddenly the refrigeration oil sill be discharged 18 Service manual 6 8 Evacuation P eer Indoor unit Liquid side rp 2 way valve Procedure 1 Connect the vacuum pump to the charge set s centre hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 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 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle Service manual 6 9 Gas charging 1222 tuid A Outdoor unit d 157 27 X owe vae A 1 C Gas AN p c 42 d Open EN 3 way 6 ten NE JO 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 l
17. amp areas 11 Self diag function The function will be operate in any operation mode 12 Air flow Direction control The louver can be set at the desired position or swing up and down automatically 13 Auto mode The unit can be change by the room temperature 14 Anti cold function Prevent the cold wind at the beginning of unit start 15 Temp Compensation 16 Defrost mode 17 Auto restart function 18 Flexible wiring connection 19 Self Clean 20 lonizer The function will be operated by remote controller Outdoor unit 1 Power relay control The unit has 3 mins delay between continuously ON OFF operations 2 Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly 3 Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode 4 4 way valve control It is only operated in the heating operation mode except defrosting operation 5 Anti rust cabinet Made from electrolytic zinc steel sheet and anti rust coated components 6 Valve protection cover It protects the valves and prevents water from dripping 7 Discharge pipe temperature Service manual 2 Dimension Indoor unit 270 165 270 995 270 165 270 outdoor unit Service manual 3 Specification _________ MSV1 07CRNi MSV107HRNi MSVI 9CRN MSV1 09HRN1_ ded ooling Capacity 90 10 Han w 60
18. aning 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 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 remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards Service manual 1 3 Function gt Indoor unit 1 Operation ON OFF by remote controller 2 Sensing by room temperature Room temperature sensor Pipe temperature sensor 3 Room temperature control Maintain the room temperature in accordance with the setting temperature 4 Starting temperature control Indoor fan is delayed for 5 sec at the starting 5 Time Delay Safety control Restarting is for approx 3 minutes 6 Indoor fan speed control Turbo high med low breeze 7 Operation indication LCD Light up in the LCD for each operation mode 8 Two direction air vane The unit will decide the louver direction according to operation mode 9 Sleep mode auto control The fan is turn to low speed cooling heating The unit will be turn off after seven hours 10 Independent dehumidification The function is usually used in rainy days in springtime or d
19. bmerged 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 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 gt 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 Service manual 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 It may cause corrosion on the product
20. do not change The total time is 7 hours after 7 hours the unit stops 7 13 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 7 14 lonizer air clean function 7 14 1 lonizer air clean function is effected when the unit is working and controlled by the remote controller 7 14 2 This function is active when the unit received the signal from the remote controller first time and inactive when received the signal again Repeat this circle when received signal again 7 14 3 This function is working only when the indoor fan is working 7 14 3 This function will not stop when the working mode changed and be inactive when the unit shut down 28 Service manual 8 Model and Parameters Model 7K 9K 12K 18K DELAY_TIME 127sec 127sec 127sec 127sec DEFROST_TIME 7 5min 7 5min 7 5min 7 5min I3SEC 75 10 0 12 0 17 6 2 7 5 8 5 15 5 2 6 0 7 5 14 IRESTORE 4 2 5 0 6 5 12 IDEFROST 3 2 3 5 5 0 8 5 TE1 28 28 34 34 TE2 32 32 37 37 TE3 30 30 33 30 TE4 26 26 22 20 5 4 4 4 3 TE6 10 10 10 12 TE7 60 60 63 63 TE8 53 53 53 53 TE9 50 50 52 52 THDEFROST 15 17 18 19 TMDEFROST 16 18 19 20 TLDEFROST 17 19 20 21 ANGLRANGE 196 196 196 190 ANGLOFF 100 100 100 97 ANGLCOOL 180 180 180 174 ANGLHEAT 22 22 2
21. e system 5 Set the 2 way valve to the open position and remove the cap from the 3 way valve s service port 6 Using the hexagonal wrench to press the valve core pin discharge for three seconds and then wait for one minute 7 Use torque wrench to tighten the service port cap to a torque of 1 8 kg m 18n m 8 Set the 3 way valve to the opened position 9 Mounted the valve stem nuts to the 2 way and 3 way valves 10 Check for gas leakage 11 At this time especially check for gas leakage from the 2 way and 3 way stem nuts and from the service port 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 If the gas leaks do not stop when the connections are 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 15 Service manual 6 5 Pumping down Re installation a nn de Indoor unit Liquid m DES 2 m valve JUU ve i IV A Procedure 1 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 wrenc
22. emote controller I3sec 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 IFAN Self protection amp of outdoor fan indoor fans when they change from higher wind to lower wind IRESTORE Amp self protection return value THDEFROST High wind defrosting temperature difference TMDEFROST Middle wind defrosting temperature difference TLDEFROST 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 Anti cold wind from Setting Fan Speed to Breeze temperature 4 Anti cold wind from Breeze to Fan Off temperature TE5 Evaporator low temperature protection entering temperature TE6 Evaporator low temperature protection restoring temperature 7 Evaporator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature TE9 Evaporator high temperature protection restoring temperature 21 Service manual 7 3 Function Remote receiving Testing and forced running Position set for indoor unit wind vane LCD displaying and alarm Timer On or off Protection for the compressor Current protection High temperature protection of indoor heat exchanger at heating mode Auto defrosting and heating recovery at heating mode An
23. h to operate the valve stems 2 Operate the unit for 10 to 15 minutes 3 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 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 5 Set the 2 way valve to the close position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 7 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 8 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 16 Service manual 6 6 Re air purging Re installation NS LC n N Gas side 8 N Charging cylinder Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve 3 Leave the valve on the charging cylinder closed 4 Air purging 5 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 6 After
24. ion 26 Service manual Select forced auto function with the forced auto button or the switch In forced auto status the A C operates at remote control mode with a set temp of 24 C Manual operation is controlled by touching buttons and divided into force cooling and forced auto mode It transfer between these two modes by pressing the buttons the cycling order of the button press is as below graph show to you Remote Forced Forced m e cooling 7 12 Sleep mode 7 12 1 The sleep function is available at cooling heating or auto mode 7 12 2 Cooling The set temperature rise 1C per hour Two hours later the set temperature will maintain as a constant and the fan speed is kept at low speed Room temperature 1 2 Time 7 12 3 Heating The set temperature decrease 1 C per hour Two hours later te set temperature will maintain as a constant and the air circulation is kept at low speed Anti cold function takes precedence over all Room temperature 1 C 1 2 Time 7 12 4 Auto After an hour running under economic mode the set temp will rise 1 it is under cooling mode the set temp will decrease fC 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 27 Service manual after 2 hours and during the next time the set temp
25. iquid refrigerant 3 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant if can be charged with a little at a time approximately 150g each time0 while operating the 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 Be sure to check for gas leakage 20 Service manual 7 Electronic function 7 1 Electronic control working environment Input voltage 198 253V Input power frequency 50 60Hz Ambient temperature 7 C 43 C Indoor fan normal working amp is less than 1A Outdoor fan normal working amp is less than 1 5A Four way valve normal working amp is less than 1A Swing motor DC12V Compressor single phase power supply Its normal working amp is less than 15A 7 2 Proper symbols and their meaning TA Indoor ambient temperature TE Indoor evaporator temperature TS Setting temperature through the r
26. l 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 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 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 a long time when the humidity is very high and a door or 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 EE Service manual Do not place anything on the power cable
27. ti cold air at heating mode Anti frozen at cooling mode Auto restart Self Clean 7 4 Protection 7 4 1 3 minutes delay at restart for compressor 7 4 2 Sensor protection at open circuit and breaking disconnection 7 4 3 Fan Speed is out of control When Indoor Fan Speed is too high higher than High Fan 300RPM or too low lower than 400RPM the unit stops and LED displays failure information and can t returns to normal operation automatically 7 4 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 7 4 5 The current protection of the compressor Current down 3sec Compressor tum off after 5 second later I Compressor turn off Current up after 5 minute later fan The outdoor fan turn off heating The Indoor fan turn Indoor fan On low speed cooling compressor On outdoor fan On restore If compressor turns off for continuously 4 times due to current protection in 5 minutes from Compressor 22 Service manual On the unit stops and LCD displays failure information and can t returns to normal operation automatically 7 5 Fan only mode Fan speed is high mid low Auto 7 6 Cooling mode The 4 way valve is closed at cooling mode The action of the compressor and the outdoor fan T indoor temperature Compressor on outdoor fan on Room temp do
28. to the fan motor Yes Repair the connector Indoor PCB is defective Fan motor is defective 32 Service manual 9 6 Operation lamp flashes and Timer lamp on Is connector connection good Replace the sencor Repair the connector 9 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 The voltage of power supply is too low less than 187V Outdoor unit fault such as the compressor Power supply fault 9 8 Operation lamp on and Timer lamp flashes EEROM error indoor PCB is defective 9 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 33 Service manual Characteristic of temperature sensor RR SER 8 563604 19 13263 46 40459 6 493161 1206 48 37348 0 35 204 27 91245 54 2959 6 254954 33 69814 60 23577 _ 8 225662 35 64002 62 21907 lt lt lt lt gt 12 1877 39 5 3969 66 1893 _ 14 169341 41 49639 68 17665 15 1 42 47605 69 1705 34
29. vaporator temperature sensor open or short circuit of 9 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 Indoor PCB is defective Check if AC 14 5V exists at the secondary coil of transformer Yes No Take off the secondary plug of transformer and then check if AC 14 5V exists at the secondary coil of transformer No Y Ye Indoor PCB is defective Indoor PCB is defective 31 Service manual 9 4 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 Y After changing indoor PCB check if the failure realease Yes Indoor PCB is defective After changing indoor fan motor check if the failure realease YES Power supply circuit has problems 9 5 Operation lamp flashes and Timer lamp off Is connector connection good Is voltage being applied
30. wn Room temp up Compressor off outdoor fan off 0 1 T Ts Auto fan at cooling mode High fan Mid fan Room temp down Room temp up Low fan 1 4 5 T Ts Anti freezing control to indoor evaporator at cooling mode T evaporator temp Compressor and outdoor fan on EVAP temp down EVAP temp up Compressor and outdoor fan off after 5 mins IC5 23 Service manual Condenser high temperature protection only for heat pump Compressor and outdoor fan on COND temp down COND temp up Compressor and outdoor fan off after 5 mins 2 11 10 7 7 Dehumidifying mode Indoor fan speed at low speed Protection is same as cooling mode 7 8 Heating mode 7 8 1 Generally the 4 way valve is open in 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 7 8 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 7 8 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
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