"service manual"
Contents
1. 3 2 Outdoor Unit MOC3 09HDN1 QC2 MOC3 12HDN1 QC2 n i EM nli pu 000 LU 50 R10 R6 5 58 Detail Drawing for Leg Gas side Flare 9 53 for 9K model 12 7 for 12K model Service port Liquid side Flare b 6 35 4 Specificatio Indoor n MSG 09HRDN1 0C2 B MSG 12HRDN1 QC2 B Outdoor MOC3 09HDN1 QC2 MOC3 12HDN1 QC2 Power supply 1 220 240V 50Hz 1 220 240V 50Hz Capacity 8500 2250 11000 11000 2450 13500 Input 770 180 1150 1000 210 1380 Cooling Rated current A 3 4 0 9 5 0 4 4 1 0 6 2 EER Btu w h w w 11 0 3 24 11 0 3 22 Capacity Btu h 9000 2300 12000 12000 2700 15500 Input 730 170 1050 970 200 1350 Heating Rated current A 3 3 0 8 4 8 4 2 1 0 6 0 COP 3 61 3 63 Moisture Removal 0 9 1 1 Max input consumption 1500 1900 Max current 8 10 Starting current 5 2 6 6 Model DA89X1C 23FZ Type Rotary Brand TOSHIBA Capacity 90402. Input 680 Compressor Rated current RLA 4 7 Locked rotor Amp LRA 10 Thermal protector CS 74 Capacitor NO Refrigerant oil 370 Model RPG13H Brand Welling Indoor fan motor Input 36 5 Capacitor 1 2 Speed hi mi lo 1250 1000 850 1280 1100 900 Indoor air flow Hi Mi Lo 500 420 350 550 450 350 Indoor noise level Hi M i Lo 39 34 29 41 36 30 Dimension W H D 750 250 196 Indoor unit Packing W H D 830 335 280 Net Gross weight 7 5 9 5 Model YDK24 6E Brand Welling Outdoor fan motor Input 56 Capacitor 2 5 Speed 800 Outdoor air flow 1700 Outdoor noise level Dimension W H D 760 590 285 Outdoor unit Packing W H D 887 655 355 Net Gross weight 38 41 40 43 Refrigerant type R410A 830 940 Liguid side Gas side 6 35 9 53 6 35 12 7 Refrigerant piping Max refrigerant pipe length 20 20 Max difference in level 8 8 Operation temp Ambient temp The above design and specifications are subject to change without prior notice for product improvement 5 Refrigerant cycle diagram ONILV3H SNIIOOO I8poN 3ATVA H3SN3QNOO 39NVHOX3 1V3H Jan Adv Tlldvo Ajuo epo FATWA 493HO doo
3. 11 7 1 Wrench torque sheet for installation 224424 11 4 9 Connecting the Cables a ea eagen e E e p a ee 11 739 Pipe length and the elevation uu era n q sa ia o a a Ua eee ieee cect 11 7 4 Air purging of the piping and indoor 11 7 5 Pumping down Re installatlon kissa asirai sa ira a a is A i io Ae saa ee 13 7 6 Re alr purging Re installation uuu eee cette etu e a sa nu ga a ini sasas 14 7 7 Balance refrigerant of the 2 way 3 way valves 15 748 EVACUATIONS etr a aaa aa aa sa asi E ke aa 16 7 9 Gas ChArgING art um tnter eue etn dba nnee Rea ae il dete 17 8 Operation characteristics U U U U u u u uuu uu uuu u u 18 8 1 MSG 09HRDN1 0C2 B u i ies be ee dede d ed eee tenia e ehe He dL 18 9 2 MSG T12HRDNT1 GQG2 B eim irn nS em emend mise 19 9 Electronie TUNEHON sc 20 9 1 Abbreviations ette eq alite ace tete oe 20 9 2 Display teo n D eee en RE a tena p ERR e a HD Eat 20 93 PrOIGCllOI u s U u IH u saa RR ROME 21 SE Msn 21 9 5 Cooling Mode ie i TTT 22 9 6 Drying eei e Ro E v A a ts 23 9 7 Heating Mode zt ei A UA dnek eed 23 9 8 Aut mode f neton t tux iE oer Pesan ne eee 26 9 9 Forc
4. Explanation TIMER AUTO Zero Cross Signal Error Is power supply and connection of connectors good Be sure the power supply is good and correct the connection Indoor is defective Replace the indoor PCB 30 10 2 8 LED3 LED2 LEDI LEDO i i Explanation DEFR TIMER AUTO OPER EEPROM Error Circuit or software error on indoor PCB Replace indoor PCB 10 2 9 LED3 LED LEDi LEDO i Explanation DEFR TIMER AUTO Communication Protection Between Indoor amp Outdoor Units Disconnect the power supply after 1 minute connect the power supply turn on the unit with remote controller Does the unit work normally NO Check the wiring between indoor and outdoor unit Is the connection of L N S and GND good Is the GND connection on outdoor PCB good NO a Reconnect and retest again Yes Is the LED4 red on outdoor PCB bright and LED1 yellow blinking Replace indoor PCB and repower on Is the failure cleared Yes No The power supply for outdoor PCB is fail Check the wiring on outdoor PCB comparing with wiring plate Is the connection good Yes No Correct the connection Replace outdoor e box 31 10 2 10 LED3 LED2 LEDI LEDO DEFR TIMER AUTO OPER Rotor Position Error Are the U V W connected to compressor and inverter module right And signal feedback
5. Pink 9 1 Orange 4 Appa Orange 2000 7 25 C Red 5 Yellow Pink Yellow 5 Red Yellow Red 33 10 3 5 Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor exhaust temp Te sensor Measure the resistance value of each winding by using the multi meter Some frequently used R T data for T1 T2 T3 and T4 sensor meae Je w w Ja s s e resistance Vale KO 269 297 163 ias s se as 24 Some frequently used data for Te sensor remove Je s s s s m s s we Resistance Valo KO wise 365 97 ss s z 34
6. 9 7 9 Turbo function in heating mode press the TURBO button on remote controller 9 8 9 8 1 9 8 2 9 8 3 9 8 4 9 9 9 9 1 9 9 2 9 9 3 9 9 4 9 9 5 1 Elevate current frequency excluding F8 to a higher grade If indoor fan is in low speed or pause caused by defrosting or anti cold wind function frequency of compressor will not be elevated one grade until these limit has been released 2 Indoor fan changes to turbo speed and anti cold wind function is valid 3 After running for 30 minutes the machine will turn back to previous setting mode Auto mode function This mode can be chosen with remote controller and the setting temperature can be changed between 17 30 C In auto mode the machine will choose cooling heating or fan only mode according to AT AT T1 Ts Indoor fan will choose auto speed of relevant mode If the machine switches mode between heating and cooling compressor will keep stopping for 15 minutes and then rechoose mode according to AT If the setting temperature is modified the machine will rechoose running function Forced operation function Forced cooling and auto function can carry out with a touch button In these two modes the machine can be changed by remote controller to any other mode at any moment When the machine is off pressing the touch button will carry the machine to forced auto mode after this if pressing the button once again within 5 seconds the machine will turn i
7. Midea SERVICE MANUAL MIDEA AIRCONDITIONER DC INVERTER SPLIT WALL MOUNTED TYPE MSG 09HRDN1 QC2 B MSG 12HRDN1 QC2 B Nov 2007 CONTENTS We PRECAUTION asa i in snee eiie uiae nesciente sns assis LL eue 1 1 1 dam doe e iid ect e o de ntc teen 1 1 0 WAKING i eet dee a od ad inna N 1 mec cc 3 Se Pi k aa a E EEE 5 a ia ao I ia aa en Da Sasu aa eh gree Da aa a 5 MSG 09HRDN1 0C2 B MSG 12HRDNA 0G2 B 3 eect aa dece 5 23 2 Outdoor Uit zu nine ee athe iat 6 MOC3 09HDN1 QC2 B MOC3 12HDN1 QC2 B ns 6 4 Specificati ii s sssini 7 5 Refrigerant cycle diagram 8 6 Wiring uere i i a i ia ai a 9 6 1 Indoor nit ie n uin aa aka a menia 9 MSG 09HRDN1 0C2 B MSG 12HRDN1 QC2 B nr 9 6 2 Outdoor Unitas et iiit eae ate 10 MOC3 09HDN1 QC2 B MOC3 12HDN1 QC2 B saaa aaa aaa aaa nana asian aaa ania 10 7 Installation detBilsu LI
8. 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 kgf m Be sure to check for gas leakage 13 7 6 Re air purging Re installation Outdoor unit fm valve Charging cylinder Procedure 1 2 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 minute repeat 3 times After purging the air use a torgue 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 indicates 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 14 7 7 Balance refrigerant o
9. automatically when reaching the setting off time and then turn on automatically when reaching the setting on time The tolerance of timer is 1 minute per hour Sleep function mode Operation time in sleep mode is 7 hours After 7 hours the machine quits this mode and turns off In cooling heating or auto mode sleep function is available Operation process in sleep mode is as follow After pressing ECONOMIC or SLEEP button on controller the machine will turn into sleep mode When cooling the setting temperature rises 1 C be lower than 30 C every one hour 2 hour later the rising stops and indoor fan is fixed as low speed When heating the setting temperature descends 1 C be lower than 30 C every one hour 2 hour later the descending stops and indoor fan is fixed as low speed and anti cold wind is available If user uses timer on function in sleep mode sleep function will pause and not resume until reaches the setting on time When user uses timer off function in sleep mode or sleep function in timer off mode if the timing time is less than 7 hours sleep function will be cancelled when reaching the setting time If the timing time is more than 7 hours the machine will not stop until reaches the setting off time in sleep mode 27 10 Troubleshooting 10 1 Indoor Unit Error Display LED3 LED2 LEDI LEDO Explanation DEFR TIMER AUTO OPER Module Protection Temp Protection of Top Compressor Outdoor
10. directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Operational B 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 m 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 B Do not block the inlet or outlet of air flow It may cause product failure B 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 B Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury B Do not step on pr put anything on the product outdoor units There is risk of personal injury and failure of product m 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 m 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 B Do not drink the water drained from the product It is not
11. wires connection good Replace the outdoor main PCB Does the problem remain Replace the inverter module Does the problem remain check coil resistance of inverter compressor is it 0 64ohm NO Explanation Reconnect and retry Replace inverter compressor 32 10 3 Key parts checking 10 3 1 Compressor checking Model DA89X1C 23FZ Measure the resistance value of each winding by using the multi meter Input Terminal ra Blue Blue 4 lt Blue Red 1100 _ Red rO Blue Black 20 C 2 al 1 Black 209 Black 3 Red Blue Red P N y 10 3 2 Outdoor Fan Motor Model YDK24 6E Measure the resistance value of each winding by using the multi meter Black Red 3450 8 20 C Blue Black 1800 8 20 C 10 3 3 Indoor Fan Motor Model RPG13H Measure the resistance value of each winding by using the multi meter Input Terminal Red B Red 1 lt Position Resistance Value Black 2 amp Black Red 4450 8 20 C White 3 LA White Black 4050 8 20 C 10 3 4 Step Motor Model MP2835 Measure the resistance value of each winding by using the multi meter Input Terminal p Orange Es Bie hu gt le Position Resistance Value Pink s q Pink 2 Blue Red ellow 3 5
12. 1 0881 TTT 8 0 84 25 27 29 31 33 35 37 39 41 43 Outdoor Ambient Temperature C Remark Indoor room temperature 27 19 C Indoor fan speed High Pipe length 5m Heating Characteristics Heating Capacity KW 101 0 99 0 97 0 95 093 0911 0 89 Heating Power Input KW 7 5 3 A 1 3 5 7 9 t Outdoor Ambient Temperature C Remark Indoor room temperature 20 C Indoor fan speed High Pipe length 5m Cooling Capacity KW Cooling Power Input KW Heating Capacity KW Heating Power Input KW 5 6 7 8 9 10 Piping Length m Remark Indoor room temperature 27 19 C Outdoor temperature 35 C Indoor fan speed High Piping Length Characteristics Heating 0 98 097 0 96 095 094 id 0 93 0 92 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Remark Indoor room temperature 20 C Outdoor temperature 7 6 C Indoor fan speed High 19 9 Electronic function 9 1 Abbreviation Ti Indoor ambient temperature T2 Pipe temperature of indoor heat exchanger T3 Pipe temperature of outdoor heat exchanger T4 Outdoor ambient temperature 9 2 Display function 9 2 1 Icon explanation on indoor display board Infrared signal receptor J AUTO TIMER ECON PRE DEF MSG 09HRDN1 QC2 B MSG 12HRDN1 QC2 B Auto indicator This indicator illuminates when the air conditioner is in AUTO operation 2 Timer indicator
13. 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 11 leakage from the refrigeration cycle Indoor unit Br DN Liquid side Procedure Caution 1 Recheck the piping connections If gas leakage is discovered in step 3 above take the 2 Open the valve stem of the 2 way valve following measures counterclockwise approximately 90 wait 10 If the leaks stop when the piping connections are seconds and then set it to closed position tightened further continue working from step 4 Be sure to use a hexagonal wrench to operate the If the gas leaks do not stop when the connections are valve stem retightened repair the location of the leak discharge all 3 Check for gas leakage of the gas through the service port and then recharge Check the flare connection for gas leakage with the specified amount of gas from a gas cylinder 4 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 pr
14. Ambient Sensor Open or Short Circuit Voltage Too High or Too Low Room Sensor Open or Short Circuit Indoor Fan Speed Out of Control Zero Cross Signal Error EEPROM Error Communication Protection Between Indoor amp Outdoor Units Rotor Position Error x x X O x X X X X X X x x x O Bright X Extinguished Blink 10 2 Diagnosis and Solution 10 2 1 LED3 LED2 LEDI LEDO E Explanation DEFR TIMER AUTO OPER Module Protection NO Revise the power and retest YES YES YES Is voltage normal NO Is all connection good Revise the power and retest Is the wiring to compressor right Check the module if some components blow out or be failure YES Repair or replace the module YES Is it breakdown between P N P V P W N V N W or V W of inverter module YES Replace the module YES Check the compressor 28 10 2 2 LED3 1 2 LEDI LEDO Explanation DEFR TIMER AUTO OPER Temp Protection of Top Compressor Is the connection R good econnect and retest YES Is protector u normal eplace the protector YES Check the outdoor main PCB Is there some problem Does compressor operate YES Is refrigerant circulation volume normal NO Charge refrigerant Is abnormality the same after gas
15. This indicator illuminates when TIMER is set ON OFF 8 PRE DEF Indicator This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode OPERATION indicator This indicator illuminates when the air conditioner is running 6 ECON indicator This indicator illuminates when the air conditioner is running in economic sleep mode 9 2 2 LED display control function Pressing LED display button on remote controller will turn off all displays on indoor unit while pressing once again all displays will resume 20 9 3 9 3 1 9 3 2 9 3 3 9 3 4 9 3 5 9 3 6 9 3 7 9 3 8 9 3 9 Protection Three Minutes Delay at restart for compressor Temperature protection of compressor top If the temperature of compressor top is too high higher than 120 C and the Over load Protector is cut the units stop When the Over load Protector restore and close lower than 100 C the compressor will restart in this case the compressor is restricted by Three Minutes Delay protection Temperature protection of compressor exhaust If the exhaust temp of compressor is higher than 115 C and lasts for 5 seconds the compressor stops and does not resume until the exhaust temp is lower than 90 C Inverter module Protection Inverter module Protection itself has a protection function against current voltage and temperature If these protections happened the corresponding c
16. an t be changed The horizontal angle is the same as in cooling mode 9 6 4 Room overlow temperature protection In drying mode if room temperature is lower than 10 C compressor will stop and not resume until room temperature climbs up to 12 C 9 6 5 Evaporator anti freezing protection condenser high temperature protection and outdoor unit frequency limit are valid and they are the same as that in cooling mode 9 6 6 Horizontal louver action is the same as that in cooling mode 9 7 Heating mode 9 7 1 Indoor fan action 1 Anti cold wind function setting fan speed low fan Evaporator temp breeze fan stop 2 If the compressor stops caused by room temperature rising indoor fan will be forced to run 127 seconds with breeze During this period anti cold wind is disabled After this anti cold wind function is available 3 If the machine runs in rating capacity test mode indoor fan runs with rating speed and anti cold wind is 23 disabled 9 7 2 Indoor fan speed can be set as high medium low or auto grade but anti cold wind function is preferential Auto fan action in heating mode medium temp setting Temp 9 7 3 After start the operation frequency of compressor submits to following rule room temp setting Temp ATcon ATh Remark ATcon can be changed among 2 4 C the default is 0 1 When the machine runs if ATh stays in a zone for 3 minutes a
17. charging Replace the outdoor PCB Check refrigerant system such as clogging of capillary 10 2 3 LED3 LED LEDi LEDO Explanation DEFR TIMER AUTO OPER Outdoor Ambient Sensor Open or Short Circuit Is the outdoor temperature sensor connector and connection good YES the and YES Replace outdoor e box check if E5 display again 10 2 4 LED3 LED2 LED1 LEDO Explanation DEFR TIMER AUTO OPER Voltage Too High or Too Low Is the power supply good Be sure the power supply is normal when using the units Replace the outdoor e box Repair the connector and reconnect 29 10 2 5 LED2 LED1 Explanation TIMER AUTO Room Sensor Open or Short Circuit Is the indoor temperature and 2 2 Repair the connector and connector and connection reconnect good Replace the sensor and YES Replace the indoor PCB check if E6 display again LED2 LED1 i Explanation TIMER AUTO 10 2 6 Indoor Fan Speed Out of Control Repair the connector and reconnect Indoor PCB is defective Replace the indoor PCB Replace the indoor fan motor Is the indoor fan motor connector and connection good Is voltage being applied to the fan motor rang 90v 160v between mid pin and N on CN1 10 2 7 LED2 LEDI
18. ction of frequency is as follow Zone A Elevate current frequency one grade and not stop until the maximum grade Zone B Elevate or keep or descend current frequency Zone Compressor stops after running with F1 for 60 minutes or when ATh 6 2 Temperature difference ATcon choice After power on the machine will self diagnose and if there are no J1 and J2 jump wires ATcon will be set as 0 C 9 74 Outdoor unit current control in heating mode comp pause ISHEAT 3 is freq descends if curr rises S 2 ue 5 freq remains if curr descends 8 3 WHEAT 4 running normally Remark 24 ESET 11 HEAT I2 HEAT HEAT 9 7 5 Indoor heat exchanger high temperature protection If T2 60 C the compressor will stop and not resume until T2 48 C 9 7 6 Defrosting mode 1 Condition of defrosting Condition 1 If T4 gt 0 C When the units are running if the following two items are satisfied the units start defrosting The units runs with T3 lt 3 C for 40 minutes and T3 keeps lower than 6 C for more than minutes a b The units runs with T3 lt 3 C for 80 minutes and keeps lower than 4 C for more than minutes Condition 2 If T4 lt 0 C The program judges according to the condition 1 if the two items are satisfied then judges if T2 has descended for more than 5 C if it has the machine starts defrosting or continues to judge 2 and will not defr
19. ed operation fUNEUON 70 IUE is ia nend 26 9 10 ActionofA way c l ai eisiu ete eie iii E e a i ete i sees Pens valk 26 9 11 Fimer oii i S aaa i ka asa i eere Ree efe Re 27 9 12 Sleep function MOE x S itt c ceu da i ttt ia e a a e e o Ela sa 27 10 Troubleshooting 28 10 1 Indoor Unit ErroriDisplay ss iate iai tete e ii a i i etn ee eve is 28 10 2 Diagnosis And SOOM ett rete ai ss i Aa E aree a rende pt 28 10 3 Key parts checking 1 Precaution 1 1 Safety Precaution To prevent injury to the user or other people and property damage the following instructions must be followed E Incorrect operation due to ignoring instruction will cause harm or damage m Before service unit be sure to read this service manual at first 1 2 Warning Installation m Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock B 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 m Always ground the product There is risk of fire or electric shock E Install the panel and the cover of control box securely There is risk of fire o
20. ess the valve core pin discharge for three seconds and then wait for one minute 5 Use torque wrench to tighten the service port cap to a torque of 1 8 kgf m 18n m 6 Set the 3 way valve to the opened position 7 Mounted the valve stem nuts to the 2 way and 3 way valves 8 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 12 7 5 Pumping down Re installation indoor UN ud side 4 2 Gas side 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 wrench 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 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 6 Set the 2 way valve to the close position 7 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 8 Immediately set the 3 way valve to the closed position Do this guickly so that the gauge ends up indicating 0 3 to 0 5Mpa Disconnect the charge set
21. f electric shock m Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock m 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 E Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury m 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 m For installation always contact the dealer or an Authorized service center There is risk of fire electric shock explosion or injury E Do not install the product on a defective installation stand It may cause injury accident or damage to the product m 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 B Do not let the air conditioner run for a 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 m Do not place anything on the power cable There is risk of fire or electr
22. f the 2 way 3 way valves Indoor unit MZA Liquid side 2 way valve 000 A 2 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 Outdoor unit 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1Mpa 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 15 7 8 Evacuation indoor uni 1 1 Liquid side Outdoor unit 2 way valve 22227 4 TH Lai k 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 Vac
23. he seventh hour Anti cold function o o 3 3 o Independent dehumidification Prevent cold windial ite beginning of unit start The function is usually used in rainy days in springtime or damp areas Auto defrost Air flow Direction control The louver can be set at the desired position or swing up and down automatically Auto restart function When the power supply is interrupted and then restore the air conditioners automatically restore The mode can be change by the room temperature the previous function setting Temp Compensation Flexible wiring connection 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 guietly 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 Anti rust cabinet Made from electrolytic zinc steel sheet and anti rust coated components Valve protection cover It protects the valves and prevents water from dripping Discharge pipe temperature protect Heating cable Optional Driving heating at 15 C 3 Dimension 3 1 Indoor Unit MSG 09HRDN1 QC2 B MSG 12HRDN1 QC2 B
24. ic shock E Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock E Do not touch operation the product with wet hands There is risk of fire or electric shock E Do not place a heater or other appliance near the power cable There is risk of fire and electric shock m Do not allow water to run into electric parts 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 m Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur m 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 m 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 B Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so eguipped There is risk of physical injury electric shock or product failure m When the product is
25. nto forced cooling mode In forced auto forced cooling or any other operation mode pressing touch button will turn off the machine In forced operaton remote control is available In forced operation mode all general protections is available In forced cooling mode after running for 30 minutes the machine will turn to normal auto mode which setting temperature is 24 C The action of forced auto mode is the same as normal auto mode which temperature is 24 C 9 10 Action of 4 way valve In cooling drying fan only or turning off mode 4 way valve is off while in heating mode 4 way valve is on If the machine changes operation mode from heating mode to some other mode 4 way valve will be delayed off 2 minutes after compressor stop For defrosting please refer to the passage defrosting mode 26 9 11 9 11 1 9 11 2 9 11 3 9 11 4 9 11 5 9 11 6 9 12 9 12 1 9 12 2 9 12 3 9 12 4 9 12 5 Timer function Timing range is 24 hours and the minimum resolution is 15 minutes Timer After turning off the machine will turn on automatically when reaching the setting time Timer off After turning on the machine will turn off automatically when reaching the setting time Timer on off After turning off the machine will turn on automatically when reaching the setting on time and then turn off automatically when reaching the setting off time Timer off on After turning on the machine will turn off
26. ode will display on indoor unit LED Sensor protection at open circuit and breaking disconnection Fan Speed is out of control When Indoor Fan Speed is too low lower than 300RPM for 60 seconds the unit stops and LED displays failure information and can t return to normal operation automatically Cross Zero signal error warning If there are 20 alternations of Cross Zero signals are incorrect the unit stops and LED displays failure information After resuming the motor rotates again The spacing of Cross Zero signal is 6 13ms Indoor fan delayed open function 9 3 10 For all modes when the units are turned on the indoor fan can operate 10 seconds after the action of louver 9 3 11 9 3 12 9 4 9 4 1 9 4 2 9 4 3 Compressor preheating function 1 Preheating permitting condition If T4 outdoor ambient temperature lt 3 C and the machine connects to power supply newly or if T4 lt 3 C and compressor has stopped for over 3 hours the compressor heating cable will work 2 Preheating mode A weak current flows through the coil of compressor from the wiring terminal of compressor then the compressor is heated without operation 3 Preheating release condition If TA 5 C or user turns on the machine and compressor runs preheating function will stop Compressor heating cable If outdoor temperature sensed by outdoor thermostat is lower than 5 C the thermostat closes and compressor heating cable begins to work If outdoor temperature i
27. ost until T2 drops more than 5 C Condition 3 No matter what value T4 is if the machine runs with T3 lt 3 C for more than 120 minutes and T3 keeps lower than 2 C for more than 3 minutes the machine will defrost no matter if T2 drops for more than 5 C or not 2 Condition of ending defrosting If any one of following items is satisfied defrosting will finish and the machine will turn to normal heating mode a rises to be higher than 12 C b rises to be higher than 8 C and remains for 80 seconds c The machine has run for 10 minutes in defrosting 9 7 7 Defrosting action compressor 4 way valve outdoor fan indoor fan indoor fan breeze 105 4 605 lt gt no longer than 10 minutes 30s 25 9 7 8 Rating capacity test function 1 Set the indoor unit with remote controller as high fan 30 C in heating mode then press TURBO button on controller 6 times or more within 10 seconds make sure indoor unit receives these signals the machine will turn into rating capacity test mode the buzzer will make a di sound for 2 seconds continuously Also indoor fan will change to rating speed the frequency of compressor will be fixed as rating value Any condition of above is not satisfied the machine can not be turned into rating capacity test mode 2 The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed or setting temperature
28. q1no 305 dinon HOLVHOdVA3 29NVHOXI LINN HOOONI 6 Wiring diagram 6 1 Indoor Unit MSG 09HRDN1 QC2 B MSG 12HRDN1 QC2 B INDOOR WIRING DIAGRAM OPTIONAL I INDOOR FAN MOTOR SWING MOTOR I POWER SUPPLY RED OPTIONAL 6 2 Outdoor Unit MOC3 09HDN1 QC2 MOC3 12HDN1 0C2 HEAT EXCHANGER SENSOR OUTDOOR WIRING DIAGRAM wre Lo ga TEMP SENSOR 2 8 YELLON COMPRESSOR BLUE ca RED X508 oye 6 01503 OUTDOOR jg BLACK MAIN ls K501 65 B i O TERMINAL 4 1 i HEATER1 i REACTOR ORANGE LAW HI 5 Bil RED MEL REACTOR T i INDOOR UNIT CAPACITOR OPTIONAL ai as aa i i i eer errr H 10 7 Installation details 7 1 Wrench torque sheet for installation Outside diameter Torque mm inch Kgf m 66 35 1 4 1 8 69 52 3 8 4 2 612 7 1 2 5 5 7 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet 7 3 Pipe length and the elevation Capacity length refrigerant Btu h Gas Liquid Indoor unit Indoor unit Outdoor unit Caution Capacity is base on standard length and maximum allowance length is base of reliability Oil trap should be installed per 5 7 meters 7 4
29. rt cap to a torque of 18N m Be sure to check for gas leakage 17 8 Operation characteristics 81 MSG 09HRDN1 QC2 Cooling Characteristics 270 2 60 2 50 2 40 2 30 220 lt 5 5 o 079 0 78 077 076 0 75 0 74 073 Cooling Power Input KW Outdoor Ambient Temperature C Remark Indoor room temperature 27 19 C Indoor fan speed High Pipe length 5m Heating Characteristics ee 2 7 E 2 6 2 5 2 4 2 3 2 2 Heating Capacity KW 078 076 074 0 72 070 068 066 Heating Power Input KW ep ocbosq cpoqs 3059 AS 499 31 Outdoor Ambient Temperature Remark Indoor room temperature 20 C Indoor fan speed High Pipe length 5m Piping Length Characteristics Cooling o 5 Cooling Power Input KW 5 6 7 8 9 1011 12 13 Piping Length m 14 15 Remark Indoor room temperature 27 19 C Outdoor temperature 35 C Indoor fan speed High Piping Length Characteristics Heating Heating Capacity KW Heating Power Input KW 5 6 7 8 9 10 11 12 13 14 15 Piping Length m Remark Indoor room temperature 20 C Outdoor temperature 7 6 C Indoor fan speed High 18 8 2 MSG 12HRDN1 GC2 Cooling Characteristics 34 S 33 x 32 L 30 5 29 6 H 28 27 1 08 F 1 04 2 100i lt s 096 8 0921 a i f I 2
30. s higher than 15 C the thermostat opens and compressor heating cable stopping working Fan Only Mode Temperature setting function is disabled and no setting temperature display In this mode the action of louver is the same as in cooling mode The action of auto fan in fan only mode is the same as auto fan in cooling mode with 24 C setting temperature T1 24 21 9 5 Cooling Mode 9 5 1 The After start the operation freguency of compressor submits to following rule AT room temp setting Temp When the machine is running and AT room temp setting temp changes the frequency of compressor will rise or descend a grade 7 minutes after starting After start if AT stays in a zone for 3 minutes the frequency will change as follow Zone A Current frequency rise a grade till the maximum grade Zone B Elevate or keep or descend the frequency of compressor Zone Compressor stops after running as the minimum frequency for 60 minutes or AT is less than 2 C 9 5 4 Indoor heat exchanger anti freezing function If T2 is lower than 0 C the compressor stops and resumes when T2 gt 5 C 9 5 5 Outdoor unit current control in cooling mode refer to the parameter table comp pause I3COOL freq descends if curr rises I2C00L freg remains if curr descends outdoor unit current HCOOL 4 running normally Remark HCOOL I2COOL 9 5 6 Rating capacity test func
31. sanitary could cause serious health issues B Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury m 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 B Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode m 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 2 Function Operation by remote controller Sensing by room temperature Room temperature sensor Pipe temperature sensor Room temperature control Maintain the room temperature in accordance w ith the setting temperature Anti freezing control in cooling Prevent the water being frozen on evaporator by sensing the evaporator pipe temperature in cooling mode Time Delay Safety control Restarting is for approx 3 minutes lonizer Optional Indoor fan speed control Turbo wind high med low breeze Tele Remote control Optional Two direction air vane The unit will decide the louver direction according to Work voltage 160V 253V Sleep mode auto control Self diag function The fan is turn to low speed cooling heating The unit will be turn off at t
32. soaked flooded or submerged contact an Authorized service center There is risk of fire or electric shock W 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 electric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock m 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 m Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product E Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage m 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
33. tion 1 Set the indoor unit with remote controller as high fan 17 in cooling mode then press TURBO button on controller 6 times or more within 10 seconds make sure indoor unit receives these signals the machine will turn into rating capacity test mode the buzzer will make a di sound for 2 seconds continuously Also indoor fan will change to rating speed the freguency of compressor will be fixed as rating value Any condition of above is not satisfied the machine can not be turned into rating capacity test mode 2 The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed or setting temperature 9 5 7 Turbo function press the TURBO button on remote controller 1 Elevate current frequency to a higher grade 2 Indoor fan turns to turbo speed 3 After running for 30 minutes the machine will turn back to previous setting mode 22 9 5 8 Indoor fan operation rule 1 In cooling mode indoor fan runs all the time and the speed can be selected as high medium low and auto 2 Auto fan in cooling mode acts as follow 40 4 5 3 0 medium 1 5 1 0 temp setting Temp lt 9 5 9 Condenser high temperature protection function in cooling and drying mode If T3 gt 60 C for 5 seconds compressor will stop immediately and the machine will not resume until 3 lt 52 9 6 Drying mode 9 6 1 Indoor fan speed is fixed at breeze grade and c
34. uum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle 16 7 9 Gas charging Indoor unit Outdoor unit Gas side Check valve 3 way valve 0 L a lt _ RIT le ee n Charging cylinder Procedure 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 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 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 timeO 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 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 Mounted the valve stem caps and the service port Use torque wrench to tighten the service po
Download Pdf Manuals
Related Search