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Oasis Single Zone Light Commercial

1. E lt COOLING lt HEATING MOU 24HFN1 M MOU 36HFN1 M MOU 48HFN1 M INDOOR OUTDOOR Electronic LIQUID SIDE CAPILIARY TUBE expansion valve b 1000001 Se 2 WAY VALVE Condenser temp sensor HEAT EXCHANGE u EVAPORATOR _ 1 Room temp T4 Ambient EXCHANGE sensor temp sensor 7 CONDENSER T2 Evaporator temp sensor Ee gt 7 GAS SIDE 4 v FT v C p 4 3 WAY VALVE Accumulator High pressure switch ds T5 Discharge Ow pressure temp sensor switch AE c Compressor 4 HEATING For MOU 24HFN1 M there are no high pressure switch and low pressure switch 62 Part 3 Wiring Diagrams 4 Wiring Diagrams MOC 12HFN1 MSOW 64n 7 5nn3 HEAT EXCHANGER SISIR 20203 7390733 7 BLAG I ams ere T Hm 7 cus C T HEATER 1 DISCHIRGE OUTDOOR MA IN PCB Su COMPRESSOR E NN YELLOW YELLOW PF ACTOR R6025 H 125 ORANGE pain REACTORI R1310 ORANGE __ RED ORANGE a J INDOOR OUTDOOR WIRING DIAGRAM TOR
2. D F b Ceiling installation F 40 Indoor Units Dimensions 24K 48K D Connecting point of refrigerant pipe D gas side Drain point E Connecting point of refrigerant pipe E Liquid side Indoor Units 41 Service Space 3 Service Space 12K 18K 235mm LO LO N 24K 48K e 42 C 21000mm LLL 21000mm Indoor Units Wiring Diagrams 4 Wiring Diagrams MUBU 12HRFN1 M MUBU 18HRFN1 M WIRING DIAGRAMCI NDOOR UNI T2 202052290087 POWER SETTING CN15 DC MOTOR INDOOR UNIT DRIVERMODLE MAINBOARD Wo OL 2 T2 BLACK MIDDLE PIPE TEMP 11 WHITE ROOM TEMP ON OFFI ALARM Remote Alarm Control
3. m MOU 48HFN1 M 938 633 5 404 448 370 392 1369 60 Part 3 Service Space 2 Service Space Wall or obstacle 2 2 71121 127 2 Air inlet More than 30cm More than 60cm More than 30cm 7 Maintain channel CS than soem Air outlet More than 200cm UM d 3 61 Piping Diagrams 3 Piping Diagrams MOC 12HFN1 MSOW MOF 18HFN1 MSOW INDOOR OUTDOOR 4 CHECK VALVE LIQUID SIDE Heating Model only P N 4 Nd L M m gt 4 VV V VV css 2 WAY VALVE Condenser 00000 4 temp sensor CAPILIARY TUBE HEAT P EXCHANGE LM i vl EVAPORATOR HEAT j T1 Room temp T4 Ambient EXCHANGE sensor temp sensor CONDENSER T2 Evaporator temp sensor EE os v GAS SIDE PES PEN _ 4 VALVE EN m 3 WAY VALVE Accumulator Compressor T5 Discharge temp sensor
4. Installation 85 Indoor unit installation 3 5 Ceiling amp floor indoor unit installation 12K 18K 3 5 1 Service space for indoor unit gt gt 1000 35mm 35mm 3 5 2 Bolt pitch D Ceiling installation Drain point 12 24K 505 5 F G 86 Installation Indoor unit installation 2 Floor standing installation Hook FTTTITTTTTTTTTTTTTTATTTTTTATTZTTTTTTTTTZTTTTTTTTETET LI TLH FHIFHLFELFHLFELFLFLELFLELFILFELFLFLELFLELFLELFLELE T IOS ti 3 5 3 Install the pendant bolt 1 Ceiling installation Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 212mm 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings 2 Floor standing installation Fix the hook with tapping screw onto the wall Refer to picture below Hook Tapping e DL d IL IL EE IL LJ LL IL TEE ae an mm LI 3 5 4 Install the main body 1 Ceiling installation The only installation method for the unit with drain pump Remove the side bo
5. 46 47 Indoor Units Features 1 Features 12K 18K 1 1 Two way installation The rounded design of the ceiling and floor type air conditioner allows either ceiling or floor level installation Ceiling installation saves room space while floor installation helps prevent the loss of warm air 1 2 Brief design Brief design that is suitable for any interior will not only give you cooling and heating performance but also upgrade your lifestyle 1 3 30 airflow gt Vertical air flow and horizontal can be adjusted by remote controller the cooperation of the two airflow ways help to spread air comfortably throughout even a large room With these functions the whole room can be evenly air conditioned for both floor level and ceiling installation a Indoor Units 37 Features 1 4 Optional drainage pipe connection Both right side and left side drainage holes are available to avoid the space limitation for drainage pipe installation Make you more convenient during installation Ww w gt P Standard Panel A Panel B Panel LED display EE E C Panel LED display D Panel 1 6 Convenience operating and easy maintenance Remote controller as standard wired controller for optional gt filter without screw fixed can be took out easily 1 7 Easy installation save working time The pipes can be connected
6. 6 Electric Characteristics 7 Sound Level 8 1 5 9 The Specification of Power 10 Field Wiring Duct Type Duct Type 21 Features 1 Features 1 1 Installation accessories Optional Front Board Canvas Air Passage Filter Panel for easy installation Panel 1 2 Easy Installation Two air inlet styles Bottom side or Rear side Airinlet from rear is standard for all capacity air inlet from bottom is optional gt size of air inlet frame from rear and bottom is same it s very easy to move the cover from bottom to rear side or from rear to the bottom in order to matching the installation condition Air intake from rear Standard Air intake from bottom Optional 1 3 Fresh air intake function gt Install one duct from the reserved fresh air intake to outdoor Continually inhale the fresh air to improve the quality of the indoor air fulfills air quality more healthy and comfortable 1 4 Easy maintenance Clean the filter Optional standard product without filter It is easy to draw out the filter from the indoor unit for cleaning even the filter is installed in rear side or bottom side 22 Indoor Units Features una Tr pni 21 E ii 1 nn ii ti T Hi n
7. 61 Piping 62 Wiring Diagram s 63 Electric Characteristics 67 Operation Limits 68 u 69 Outdoor Units 1 Dimensions gt 11 H UR A a z N a J NS C 4 zi UI 2 Sa MOC 12HFN1 MSOW MOF 18HFN1 MSOW MOU 24HFN1 M MOU 36HFN1 M Part 3 1 Dimensions 59 Dimensions
8. Check the of outdoor unit power supply whether the voltage between L 1 and N is about 220 240VAC Y Check the power supply DOM Replace power board then check whether the system can run normally Check me the voltage of IPM board P and N is normal DC277 356V for 18K 24K 30KBtu h DC277 410V for 36K 48KBtu h system can run normally Replace IPM board and then check whether the system can run normally Yes Replace bridge rectifiers and then check whether the Yes No v v Replace outdoor main board 15 solved Electrical Control System 133 Troubleshooting 2 4 4 8 E6 malfunction Only for 36K 48K E6 display module protection Check whether the connecting line between main board and the PFC module is connected tightly Connect it tightly check normal or not No Check whether the voltage range of P N on IPM module is normal DC277 410V Yes gt Replace the outdoor main board No Check whether the inductance of PFC module is good If the inductance is good the resistance of the two ports is O od Replace the inductance Yes v Replace the PFC module v 134 C Trouble is solved u
9. Infrared signal receiver Temporary button Display digital tube gt MANUAL OPERATION TIMER DEF FAN ALARM Electrical Control System 117 Troubleshooting 2 1 5 Icon explanation on indoor display board Console Infrared signal receiver Operation lamp Timer indicator PRE DEF indicator cooling and heating type or fan only indicator cooling only type Temporary button 2 1 6 Display board of auto lifting panel of 4 way cassette 24K Cassette Digital 88 Display Check Button Running LED Timer LED Defrost LED Alarm LED 2 1 7 Display board of Ceiling floor indoor unit 24K MANUAL OPERATION TIMER DEF FAN ALARM Infrared signal receiver 118 Electrical Control System Troubleshooting 2 2 Indoor unit malfunction For Console 12K Malfunction Running lamp Timer lamp Defrosting lamp NO Communication malfunction between indoor and outdoor units gud s MEN CR Outdoor unit EEPROM parameter error 8 Over voltage or over low voltage protection Over voltage or over low voltage protection or over low voltage protection SS _ 9 O light X off lt at5Hz at 0 5Hz
10. 20 3 SHIELDED WIRE THE NET MODULE NOTICE 4 TYPE 53 LAND BIGGER TYPE ADOPT THIS CONNECTION METHOD i NOTICE 3 1 PLEASE CUT OFF THE JUMPER 12 IF YOU WANT TO HAVE THE TERMAL FUNCTION Indoor Units 53 Electric Characteristics 5 Electric Characteristics Hz Voltage Min 60 208 230 253V MFAU 12HRFN1 M 54 Part 3 6 Sound Levels Indoor Units 1m Microphone 1 5 MFAU 12HRFN1 M Noise level dB A Sound Levels 55 Accessories 7 Accessories D Remote controller B 6 Remote controller 6 Its Frame Frame E Mounting screw ST2 9x10 C H Alkaline dry batteries AM4 Owner s manual 8 The Specification of Power Frequency 208 230V 60Hz wasa Circuit Breaker Fuse A 40 30 Indoor Unit Power Wiring mm Outdoor Unit Power Indoor Outdoor Connecting Wiring 3x2 0 Strong Electric Signal Weak Electric Signal 56 Part 3 Field Wiring 9 Field Wiring MFAU 12HRFN1 M Air Condition Link Circulit INDOOR UNIT Use 4 cable 16AW GC O O Power supply Use 3 core cable 14AWG Indoor Units 57 Outdoor Units 58 Part 3 Outdoor Units gt IITA NSIONS Su uk un 2 u uuu 59 Service Space
11. Too long distance l Gas bag 6 2 5 The horizontal pipe layout should avoid converse flow bad flow Drainage pipe Dramage pipe Drainage pipe Drain tee J PR Water flow Water flow Water flow Water flow Water flow Drain Su water flow Water flow Water flow gt N N we EMEND Gas Water flow ff f Main pipe TM 2 eo Branch pipe X gt correct installation will not cause converse water flow and the slope of the branch pipes can be adjusted freely Thefalse installation will cause converse water flow and the slope of the branch pipe can not be adjusted 6 2 6 Water storage pipe setting gt Ifthe indoor unit has high extra static pressure and without water pump to elevate the condensate water such as high extra static pressure duct unit the water storage pipe should be set to avoid converse flow or blow water phenomena Installation 95 Drainage pipe installation Indoor unit More than 50mm K More than 25mm 71 PS Y Water storage pipe 6 2 7 Lifting pipe setting of indoor unit with water pump Thelength of lifting pipe should not exceed the pump head of indoor
12. 26 s 2 8 34 sa 4 24 o ws 4 mes 3 s 66 m 200 x ws 4 29 s 207 _ s wa ze 62 195 _ 4 a ze 195 ww 4 me s 584 15 186 _ e s 28 563 199 _ s m 4 mas s Wm _ s wsa 4 6 51r 9 1894 _ 31 wes 9 5 1 19 m ws s 1m 9 49 1 sse s s amp m 1 wo s ws 9 4 w ws s 4 ME EN gt ma s we e 3 1 nes s 9 382 _ 144 Electrical Control System Troubleshooting Appendix 3 10 11 12 13 14 15 16 17 18 19 20 21 22 F 148 50 52 54 56 58 60 62 64 66 68 70 72 23 24 25 26 27 28 29 30 31 32 33 34 35 F 174 76 78 80 82 84 86 88 90 92 94 96 98 Electrical Control System 145 Controller 3 Controller 3 1Wireless Remote Controller 3 1 1 RGO5F2 BGEU1 10 3 D 14 AS jr 1 5 l 8 General Function for wireless remote controller RGO5F2 BGEU 1 Operation condition 239F 4140 F 5 60 C 146 Electrical Control System Controller Buttons and functions 1 ON OFF Button Push this button to start the unit op
13. ae Wiring Diagrams MOF 18HFN1 MSOW BR RETURN SENSOR 202037830705 OPTIONAL 2 i _ EXPANSWE VALVE E i 4 nans cus OPTIONAL HEATER d Qn qeenm m OUTDOOR WIRING DIAGRAM 64 AMBIENT HEAT EXCHANGER SENSOR SENSOR BLACK WHITE BROWN CH 26 24 CN B YELLOW YELLOW REACTOR REUS ORANGE 3 ORANGE ZELUM DISCHARGE SENSOR OLP TEMP SENS OR OPTIONAL mm eire rejet Li L2 L1 L2 POWER SUPPLY 2 8 65 INDOOR UNIT ptc OPT IONAL Part 3 Wiring Diagrams MOU 24HFN1 M 202075390587 HBH PRESSE PROTECT OUTDOOR AMBIEHT J j _ T4 TEMPERATLRE 581506 umm m LO T jT CONDENSER TEPFPERATURE SENSOR 59606 EL MAIN BOARD P Je Ch ELEG RON IE ESPAIS VE VALVE B quia 4 01 HATI HEAT v i5 URI x 5 i COMPRESSOR F LL T Ae yg PLEASE USE orn IELDED WIRE UNIT O NLY F Er 65 Wiring Diagrams MOU 36HFN1 M 202075590585 CODE PART NAME COMPRESSOR AC CURRENT DETECTOR ELECTRIC EXPANSIVE OUTDOOR FAN MOTOR HEATER CRANKCASE HEATING HIGH PRESSURE
14. For 12K amp 18K units except console Malfunction Running Timer Defrosting Alarm Display nixie lamp lamp lamp lamp tube Open or short circuit of T1 temperature sensor sensor H sss X X amp X X M s euma X X o sensor or outdoor EEPROM is malfunction rjmeneseamm e x x Ka w o X o m emeren 5 X 9 x 272771 ___ X X P _ O light X off flash at 2 5Hz at 0 5Hz Xe x For 24K 48K Units NO Malfunction Defrosting Alarm Running lamp Timer Display digital lamp lamp lamp tube 1 Communication malfunction between indoor X X X Es and outdoor units Sensor Electrical Control System 119 Troubleshooting Open or short circuit of T2 temperature sensor Open or short circuit of T2B temperature sensor 5 Indoor EEPROM malfunction malfunction 9 Full Fulwatrmafundio Fulwatrmafundio a malfunction between main de EM and up down panel PCB 11 Up down panel malfunction down panel Up down panel matfunction on X off flash at5Hz at 0 5Hz FO F1 F2 is only available for super slim cassette 2 3 Outdoor unit malfunction for 24K 48K only Wes 1 4 OpenorshotorutofT3or
15. Output Re ame um ems L i OUTDOOR UNIT OUTDOOR UNIT FOR OUTDOOR POWER SUPPLY FOR INDOOR POWER SUPPLY lx zm za za un un za EE GR Es BE ER S Sk a m a zm mun 58 28 58 28 25 Indoor Units 43 Wiring Diagrams MUE 24HRFN1 M MUE 36HRFN1 M MUE 48HRFN1 M Outer Driver D OCMOTOR DRIVER DISPLAY TOWIRE BOARD CONTROLLER BLACK MIDDLE PIPE TEMP Ceiling Floor Type mw 28 C ROOM TEMP T2B d3 11208 LH Cr ol Driver Matar FUNCTION SETTING INDICATION 202070590737 44 Indoor Units 5 Electric Characteristics MUBU 12HRFN1 M Electric Characteristics Indoor Units 60 208 230V MUBU IBHRENI M 208 220 2082307 25v 2082307 25v 60 2082307 25v 6 Sound Levels lt lt Microphone Air outlet side 4m Er SS 1m 1 5m Microphone Ceiling Noise level
16. Yes Y If the EEPROM chip is welded on PCB replace the PCB directly Otherwise check whether the EEPROM chip plugged in PCB well Yes Y Replace the outdoor main board 128 No Y Insert the EEPROM well Electrical Control System 2 4 4 3 E2 malfunction Only for 12 18K Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes Yes v Check all the wirings between indoor and outdoor indoor main PCB and outdoor main PCB following the wiring diagram Are all the wirings connected correctly Yes Y Measure Vs is it moving alternately between positive value and negative Troubleshooting Vs is the voltage between S and N of outdoor unit Yes Y Y Is the wiring to the outdoor main PCB connected correctly Yes Change the outdoor main PCB Power on Is the error extinguished No Y Change the indoor main PCB Electrical Control System Is the wiring to the indoor main PCB connected correctly Yes Y Change the indoor main PCB Power on Is the error extinguished No Change the outdoor main 129 Troubleshooting 2 4 4 4 E2 malfunction For 24 48K Power off then turn on the unit 5 seconds later reconn
17. not positive voltage fluctuation the fan motor must have problems and need to be replaced 2 4 1 6 Inverter compressor drive protection Only for compact cassette 12k amp console 12k Refer to the outdoor unit P6 malfunction part to solve this problem Electrical Control System 125 Troubleshooting 2 4 2 For the super slim cassette with up down panel 2 4 2 1 Communication error between indoor unit and up down panel 2 4 2 2 Up down panel is defective FO or F1 Displayed Communication failure between indoor unit and up down panel oanel is defective heck the wire connection between up down panel and indoor unit is it right Correct the connection Yes emove the up down panel repower the indoor unit Connect a display board and turn on it can it start No The indoor PCB is defective Change it Yes The up down panel is defective Change it Problem is solved 126 Electrical Control System 2 4 2 3 Up down panel is not closed F2 Displayed The up down panel is not closed Lift the filter panel to close it Check if the filter panel of up down panel is closed The up down panel is defective Change it Problem is solved Electrical Control System Troubleshooting 127 Troubleshooting 2 4 4 For the outdoor unit 2 4 4 2 EO malfunction EO display Outdoor EEPROM malfunction
18. TS All the indoor units reserve the hole to joint the fresh air pipe The hole size as following 26 Duct joint for mew air duct Indoor Units 4 Wiring Diagrams MTBU 12HRDN1 M MTBU 18HRDN1 M WIRING DIAGRAMCINDOOR UNIT 202052280088 POWER SETTING Indoor Units Wiring Diagrams L 1 TO WIRE eh CONTROLLER INDOOR UNIT MAINBOARD 1 1 Lo 10 CN10 CN10A AANT CMS CN26 o CN33 BB ir Remote Alarm Control 11 Output K ka DISPLAY WIRE COHTROLLER BLACK MIDDLE PIPE TEMP T1 TO OUTDOOR UNIT TO OUTDOOR UNIT OUTDOOR POWER SUPPLY FOR INDOOR POWER SUPPLY 27 Wiring Diagrams MTB 24HRFN1 M MTB 36HWFN1 M MTB 48HWFN1 M RI Outer Driver DC Motor INDOOR UNIT MAINBOARD POWER SETTING rz s 7 8 9 A B DRIVER MODLE Model 53 74 105 140 ide According te related model eiling Floor WIRE COHTROLLER IBAN g Ja uu BLACK MIDDLE PIPE TEMP 13 SRM DRIVER MODLE q l q poe ned
19. Y Low For 2rd Ceiling floor amp Compact cassette amp A5 Duct 12 18K 106 Electrical Control System Electrical Control Function 4 4 High 3 E Medium 1 5 gt 2 1 Y Low For other units 4 5 0 I High 4 0 Medium 3 0 gt 2 0 Y Low 1 3 2 4 Evaporator low temperature T2 protection For 12K 18K units T2 0 C the compressor will stop and restart when 2 gt 5 0 C 2 lt 4 the compressor frequency will be limited and decreased to the lower level every 1 minute till 4 lt 2 lt 7 C the compressor will keep the current frequency 2 gt 7 the compressor frequency will not be limited For other units When 2 lt 2 and lasts for 3 minutes the indoor has no capacity demand and resume till 227 1 3 2 5 Condenser high temperature T3 protection For 12K 18K units 55 C T3 60 C the compressor frequency will decrease to the lower level every minutes till F1 and then runs at F1 If T3 54 C the compressor will keep running at the current frequency T3 52 C the compressor will not limit the frequency and resume to the former frequency T3 gt 60 for 5 seconds the compressor will stop until T3 52 For other units When T3265 C for 3 seconds the compressor will shut off When T3 lt 52 the compressor will restart Electrical Control System 107 Electrical Control Function 1 3 3 Heating M
20. and LED remain alarming after 3 minutes 1 3 10 Point Check Function For 24K 48K units only There is a check switch in outdoor PCB Press the switch SW1 to check the states of unit when the unit is running Press the switch N times it will display the content corresponding to No N After getting into the check function it will display No N with 1 5s meanwhile the low bit decimal of digit display flashing indicated to get into the check function display After 1 5s it will display the content corresponding to No N the digital display tube will display the follow procedure when push SW1 each time Display Remark Normal display Display running frequency running state or malfunction code Norm code HP 10 If capacity demand code is higher than 99 the digital display tube will show single digit and tens digit For example the digital display tube show 5 0 it means the capacity demand is 15 the digital display tube show 60 it means the capacity demand is 6 0 Amendatory capacity demand code The frequency after the capacity requirement transfer The frequency after the frequency limit The frequency of sending to 341 If the temp is lower than 0 degree the digital display tube will ow show 0 the temp is higher than 70 degree the digital 13 14 Indoor unit capacity demand code basi ee display tube will show 70 Condenser pipe temp If the temp is lower than 9 degree
21. rh gt 1000mm gt 3 6 2 Install the main body Fix the hook with tapping screw onto the wall Hook Tapping E screw Washer 1 6mm e indoor unit on the hook The bottom of body can touch with floor or suspended but the body must install vertically 90 Installation Indoor unit installation 4 Outdoor unit installation Side Discharge Unit 4 1 Service space for outdoor unit Wall or obstacle Airinlet d gt 30 Maintain channel N 60cm os Air inlet Fix with bolt E 1 Air outlet CN Al Fig 6 5 4 2 Bolt pitch B 4 3Install the Unit Since the gravity center of the unit is not at its physical center so please be careful when lifting it with a sling Never hold the inlet of the outdoor unit to prevent it from deforming Do not touch the fan with hands or other objects Do not lean it more than 45 and do not lay it sidelong Make concrete foundation according to the specifications of the outdoor units Fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong wind Fix with bolt Installation 91 Refrigerant pipe installation 5 Refrigerant pipe installation 5 1 Maximum pipe length and height drop Considering the allowable pipe length and height drop to decide the installation position Make sure the distance and height drop between indoor
22. 3 2 Wired Remote Controller 3 2 1 KJR 10B Name and functions of buttons on the wire controller mode selection button 1 Mou 148 ON OF BUTTON SPEED SELECTION _ c c c c c c Z timer on button 2 9 X AJUDSTMENT BUTTON JN timer off button 9 AJUDSTMENT BUTTON Y C clock button 4 1 SWING BUTTON confirm button 5 jie j 12 ECONOMICAL button replace nutton 6 COOL ONLY COOL AND 7 a 3 3AHEATING SELECTION BUTTON 14 LOCK BUTTON Pw Fi mode selection button It is used to select mode push the button one time then the operation modes will change In turn as follows OUT HEAT FAN Remark no heating mode if wire controller is set as the cool only Timer on button Push the button to set TIMER ON each time you push the button the time moves forward by o 5 hours When the set time is over 10 hours each time you push the button the time moves forward by 1 hour If want to cancel the TIMER ON then adjust the time of TIMER ON as 0 0 Timer off button Push the button to set TIMER OFF each time you push the button the time moves forward by o 5 hours When the set time is over 10 hours each time you push the button the time moves forward by 1 hour If want to cancel the TIMER OFF then adjust the time of TIMER OFF as 0 0 CLOCK button Normally display the clock set currently display 12 00 f
23. Electrical Control System Troubleshooting 2 4 4 9 PO malfunction PO display Temperature protection of compressor top v Whether compressor Whether the connection is No Reconnect and retest operates good Yes Yes Whether refrigerant circulation volume is normal 2 e Ami Replace the protector protector is normal resistance 0 No Y Charge refrigerant Yes v Replace the outdoor main PCB Whether abnormality is the same after gas charging No Y Check refrigerant system such as clogging of capillary etc Electrical Control System 135 Troubleshooting 2 4 4 10 P1 malfunction Only for 36K 48K P1 display High pressure protection Judge 1 Whether the wiring between the high pressure switch and main control No gt Connect it well board is connected well or correctly Yes v Judge 2 Whether the high pressure protector is broken Method Short connect the high pressure protector socket check whether the system can run normally No Y Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient temperature is higher than 50 Yes Replace high pressure protector
24. the digital display tube will T3 show 9 the temp is higher than 70 degree the digital Outdoor ambient temp T4 display tube will show 70 If the indoor unit is not connected the digital display tube will show The display value is between 13 129 degree If the temp is lower than 13 degree the digital display tube will show 413711 the temp is higher than 99 degree the digital display tube will Compressor discharge temp Tp show single digit and tens digit For example the digital display tube show 0 5 it means the compressor discharge temp is 105 degree the digital display tube show 1 6 means the compressor discharge temp is 116 degree AD value of current The display value is hex number AD value of voltage 12 Indoor unit running mode code Off 0 Fan only 1 Cooling 2 Heating 3 Outdoor unit running mode code Off 0 Fan only 1 Cooling 2 Heating 3 Forced cooling 4 Actual data 4 EXV open angle If the value is higher than 99 the digital display tube will show single digit and tens digit Electrical Control System 115 Electrical Control Function For example digital display tube show 2 0 means EXV open angle is 120x4 480p Frequency limit Bit7 caused by IGBT radiator BitG Frequency limit caused by PFC Tum The display value is hex Frequency limit Bit5 number For example caused by T4 e the digital display tube Frequency limit esa 52 Bit4 s
25. 2 T423 C 3 Compressor is on 4 T3sTempEnterDefrost_ ADD Cleared conditions Meet any one of the following conditions 1 Compressor is off 2 gt TempEnterDefrost ADD Time2 Time conditions Meet the following conditions 1 Running in heating mode 2 T4 lt 3 C 3 Compressor is on 4 T3 lt TempEnterDefrost ADD Cleared conditions Meet any one of the following conditions 1 Compressor is off and 3 gt TempEnterDefrost ADD 2 last for 20 minutes 2 Running in cooling mode 3 Compressor is off for 1 hour Electrical Control System 111 Electrical Control Function Condition of entry defrosting time1 time2240 minutes When defrosting is end time1 and time2 are cleared Condition of ending defrosting If any one of following items is satisfied defrosting will stop and the machine will turn to normal heating mode D The defrosting time achieves 10min 2 TempQuitDefrost_ADD C 3 gt 7 for 60seconds For 36K units Condition of defrosting T3 lt TempEnterDefrost_ ADD and lasts for 40 minutes Condition of ending defrosting If any one of following items is satisfied defrosting will stop and the machine will turn to normal heating mode D gt TempQuitDefrost ADD C 2 The defrosting time achieves 10min 3 Turn to other modes or off Defrosting action 4 Way valve u no longer than 10min Indoor fan S O
26. 3 1 4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it Adjust the hexangular nuts on the four installation hooks evenly to ensure the balance of the body Use a leveling instrument to make sure the levelness of the main body is within 1 SSS Colourless EL Horizontal trans parent pipe indicator Adjust the position to ensure the gaps between the body and the four sides of ceiling are even The body s lower part should sink into the ceiling for 10 12 mm In general is half of the screw length of the installation hook Body H ceiling height CARE EAD Ceiling Locate the air conditioner firmly by wrenching the nuts after having adjusted the body s position well 74 Installation Indoor unit installation 3 1 5 Install the panel Remove the grille Drain side Please operate according Bolt washer to the direction of the arrow or it can not be disassembled when it is necessary Tighten the screws under the panel hooks till the panel closely stick on the ceiling to avoid condensate water Body Inlet ai netar Panel sealing foam Panel foam2 s Ceiling Panel foam 27 Outletair Air plate Panel Panel foam Hang the air in grill to the panel then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively
27. BUTTON 1 Mode button When press this button the operation mode change as the following sequence ao ee HEAT FAN Remark For the cooling only model the heating mode is skipped 2 Timer on button Press this button timer on function is active Then every press the time increase 0 51 after 10h 1h increasement after each press If cancel this Function just set it to 0 0 3 Timer off button Press this button timer off function is active Then every press the time increase 0 5 after 10h 1h increasement after each press If cancel this function just set it to 0 0 4 Follow me button When under cool heat and auto mode press this button follow me function is active Press again this function is ineffective Electrical Control System 151 Controller 10 11 12 13 Electrical heater button If press this button in heat mode electrical heater function become ineffective Reset button hidden Use a 1mm stick to press in the little hole then the current setting is canceled The wire controllers enter into original state ON OFF button When in off state press this button the indicator is on the wire controller enter into on state and send setting information to indoor PCB When in on state press this button the indicator is off and send instruction If timer on or timer off has been set it cancel this setting then send instruction to stop the machine Adjust button Set
28. OUTER TEMP 1108 Ol Outer Driver Teorkoor Remote DC Motor Comm Bis Il Control Hoc comm Biz lt For Setting HETaddreas oas sear 2846 ee m 4 1 T _ 32 INDICATION 202070590737 2 Units Static Pressure 5 Static Pressure 12 000Btu h 18 000Btu h Pa 90 90 80 80 5 N N 70 70 60 50 Super high speed N N x N N High speed 20 X i Mid speed 20 N Low speed Low speed V LAN External static pressure Pa d External static pressure Pa 2 i n N 0 300 400 500 600 800 900 200 300 400 500 600 700 800 900 1000 1100 1200 Air volume m h Air volume m h 24 000Btu h 36 000Btu h Pa Pa _ 80 NL Super high speed _ Super high speed N N N N N N 50 High speed x Der Mid speed 40 40 External static pressure Pa Exte
29. and keeps lower than 2 for more than 3 minutes 14 lt 0 If and Q are satisfied then the program judges if T2 has decreased more than 5 C When T2 has decreased more than 5 C enter the defrosting mode No matter what value of the T4 is and whether the T2 drops more than 5 C or not if the machine runs with T3 lt 3 for more than 120 minutes and keeps lower than 4 for more than minutes the machine will enter defrosting mode Condition of ending defrosting If any one of the following items is satisfied the defrosting will finish and the machine will turn to normal heating mode T3 rises to be higher than TCDE1 T3 keeps to be higher than 2 for 80 seconds The machine has run for 10 minutes in defrosting mode e Defrosting action For 12K units no longer than 10min on 105 _ F8 Compressor F2 on 4 way valve on of Outdoor fan x on Indoor fan gt br eze 10s For 18K units 110 Electrical Control System Electrical Control Function no longer than 10min on 05 F8 305 Compress on on 4 way valve x on Outdoor fan on Indoor fan breeze 10s For 24K amp 48K units Condition of defrosting T4 1 Timel Time2 Time conditions time1 Time conditions Meet the following conditions 1 Running in heating mode
30. collector b Continuously infusing water until water level alarmed check whether the drainage pump could discharge water at once If water level does not decline under warning water level 3 minutes later it shall cause shutdown of unit When this situation happens the normal startup only can be recovered by turning down power supply and eliminating accumulated water Note Drain plug at the main water containing plate is used for eliminating accumulated water in water containing plate when maintaining air conditioner fault During normal operation the plug shall be filled in to prevent leakage 6 4 Insulation work of drainage pipe Refer the introduction to the insulation engineering parts Installation 97 Vacuum Drying and Leakage Checking 7 Vacuum Drying and Leakage Checking 7 1 Purpose of vacuum drying Eliminating moisture in system to prevent the phenomena of ice blockage and copper oxidation Ice blockage shall cause abnormal operation of system while copper oxide shall damage compressor Eliminating the non condensable gas air in system to prevent the components oxidizing pressure fluctuation and bad heat exchange during the operation of system 7 2 Selection of vacuum pump gt The ultimate vacuum degree of vacuum pump shall be 756 or above gt Precision of vacuum pump shall reach 0 02mmHg or above 7 3 Operation procedure for vacuum drying Due to different construction environment two kinds of vacu
31. from bottom back and right side makes the installation more easily The wiring works can be finished before installation 1 8 Outside water pump for optional when ceiling installation 38 Indoor Units Features 24K 36K 1 1 New design more modern and elegant appearance 1 2 Convenient installation The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow t is especially useful when installation of an air conditioner in the center of the ceiling is impossible due to a structure such as one lighting 1 3 Two direction auto swing vertical amp horizontal and wide angle air flow Air flow directional control minimizes the air resistance and produces wilder air flow to vertical direction The range of horizontal air discharge is widened which secures wider air flow distribution to provide more comfortable air circulation no matter where the unit is set up 1 4 Three level fan speed more humanism design meets different air supply requirement 1 5 New foam drain pan with plastic spraying inner surface Foam case Plastic spraying surface 1 6 Easy operation 1 7 Remote control and optional wired control method Indoor Units 39 Dimensions 2 Dimensions 12K 18K a Wall mounting installation
32. g __ Ceiling Dimensions 24K 36K Tubing side Drain side 680 Hook location 950 Panel 780 Hook location 840 Body 90 Pane Unit mm Connecting point of mE m refrigerant pipe Connecting point of drain pipe Liquid side Pi Connecting point of 5 y refrigerant pipe TAM LERRA Y in a Ceiling JJ f ty TN Panel Outlet Inlet Outlet 880mm Ceiling hole Ground H 24K 205 gt 235 245 gt 275 Indoor Units Service Space 4 Service Space FII aE I _ P rrr Outlet Inlet Outlet Ground H ceiling height Ceiling Indoor Units 15 Wiring Diagrams 5 Wiring Diagrams MCA2U 12HRFN1 M MCA2U 18HRFN1 M 202042380121 restart settii DISPLAY BOARD 1 WIRE TEMPERATURE COMPENSATE ar 4 Factory setting f WHITE r xni wi Wo RT2 RTI PIPE REOL o Ln cd The SELECTION TEMPERATURE COMPENSATE AND ANTI GOLD AIR HAS EEEN SET BEFORE LEAVING THE FACTORY ANYONE MODIFY EXCEPT THE PERSON FOR POWER MILEER POWER a 3 9 10500 lt 4 gt IEEE STAT YALEE Scttlagp 227 Om d STA
33. indoor and outdoor unit is connected correctly Yes Y Replace outdoor main board Check if the errors happen again Yes Y No Check whether the power is on Connect the wiring well or replace the communication wire No Replace the indoor PCB 122 v Trouble is solved Electrical Control System Troubleshooting 2 4 1 3 Indoor EEPROM malfunction Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes If the EEPROM chip is welded on PCB replace the PCB directly Otherwise Insert the well check whether the EEPROM chip plugged in PCB well Yes v Replace the indoor PCB 2 4 1 4 Full water malfunction If the water level switch is inserted well Yes v If the water level switch is broken No v If the water pump is normal Insert the water level switch well Y Yes Replace the water level switch No Replace the water pump Yes Y Check PCB board or replace the indoor main PCB Electrical Control System 123 Troubleshooting 2 4 1 5 Indoor fan Speed has been out of control Only for the units used DC motor Shut off the power supply and turn it on 1 m
34. is relative time 1 3 7 Economy function For console 1 3 7 1 The sleep function is available in cooling heating or auto mode 1 3 7 2 Operation process in sleep mode is as follow When cooling the setting temperature rises 1 C be lower than 30 every one hour 2 hours later the setting temperature stops rising and the indoor fan is fixed at auto speed When heating the setting temperature decreases 1 C be higher than 17 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed at auto speed Anti cold wind function has the priority 1 3 7 3 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode and turns off 1 3 7 4 Shutdown change the mode or speed setting will cancel the economic operation 1 3 7 5 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing is less than 7 hours sleep function will be cancelled when reaching the setting time If the timing is more than 7 hours the machine will not stop until reaches the setting time in sleep mode For other units 1 3 7 1 The sleep function is available in cooling heating or auto mode 1 3 7 2 Operation process in sleep mode is as follow When cooling the setting temperature rises 1C be lower than 30 every one hour 2 hours later the setting temperature stops rising and the indoor fan is fixed at low speed When heating the setting temperature decreases 1 C be hi
35. safely built inside the indoor unit convenient for installation and maintenance Can check the control part easily you only need to open the air return grille E Box Inside 1 4 Air passage function Reserves the space for air outlet from the side of indoor unit Its availed to connect air duct from the two sides to the nearb small rooms 8 Indoor Units Features 24K 36K 2 Features 24K 36K 2 1 Overview Compact design super slim body size less space requiring in installation gt Each louver can be separately controlled more comfort air blowing is possible Auto lifting panel design more convenient to clean and maintain the filter optional 4 gt S 840mm oa aF a i 4 r __ i d Ne E ir mr e 4 Dg mui PIA 840mm Old Cassette New slim cassette Volume change 18 24 840 230 840 18K 24K 840 205 840 11 Dimension 30K 840 300 840 30K 840 205 840 32 36K 48K 840 300 840 36K 48K 840 245 840 18 2 2 Fresh air intake function gt Fresh air fulfills air quality more healthy and comfortable gt Ventilation motor is optional to increase the effect of fresh air Indoor Units Features 24K 36K C New air intake 2 3 Optional ionizer generator lonizer generator is optional to get refreshing air to your room lonizer generator Ventilation mot
36. than 65 the unit will stop and unit runs again when outdoor pipe temp less than 52 P5 display High temperature protection of condenser Replace the temperature sensor Check whether the condenser temperature is more than 65 resistance of condenser temp sensor is correct refer to the Appendix 1 Yes Replace outdoor main board Yes Y 50 C Judge 2 Check whether the heat exchanger is dirty Yes gt Clean the heat exchanger x No No Judge 3 The refrigerant pipe is blocked Let the refrigerant out then use the high Yes pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Judge 1 Check whether the outdoor ambient temperature is higher than Yes gt Stop the unit 140 Electrical Control System Troubleshooting 2 4 4 15 P6 malfunction For single phase units At first test the resistance between every two ports of U V W of IPM and P If any result of them 1 0 or close to 0 the IPM is defective Otherwise please follow the procedure below P6 display IPM module protection Check whether the voltage range of P N on IPM module is Check whether the input power supply is egulate it to correct then che
37. 45 8 71983 8 33566 7 97078 7 62411 7 29464 6 98142 6 68355 6 40021 6 13059 5 87359 5 62961 5 39689 5 17519 4 96392 4 76253 4 57050 4 38736 4 21263 4 04589 3 88673 3 73476 3 58962 3 45097 3 31847 3 19183 3 07075 2 95896 2 84421 2 73823 2 63682 2 53973 2 44677 5 2 189 11057 11739 se eo 04628 070 _ 0668 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 0 62973 0 61148 0 59386 0 57683 0 56038 0 54448 0 52912 0 51426 0 49989 0 48600 0 47256 0 45957 0 44699 0 43482 0 42304 0 41164 0 40060 0 38991 0 37956 0 36954 0 35982 0 35042 0 3413 0 33246 0 32390 0 31559 0 30754 0 29974 0 29216 0 28482 0 27770 0 27078 0 26408 0 25757 0 25125 0 24512 0 23916 0 23338 0 22776 0 22231 14 Troubleshooting Troubleshooting Appendix 2 Unit C K Discharge temp sensor table 7 _ Discharge temp sensor table ss 3 2 _ 4 ss s 109 13 363 3 27 50 28 67 107 3 025 290 _ m xs 4n 9 28 7 9 ms Z eme 274 _ __ 32 4s ZZ
38. Indoor Units Dimensions 2 Dimensions 2 4 x Y 2 m 2 NG S Size of outline dimension mounted Capacity KBtu Indoor Units 25 Service Space 3 Service Space Ensure enough space required for installation and maintenance 200mm or more 300mm or more _ 600mmX600mm checking orifice
39. Note The panel shall be installed after the wiring connected Installation 75 Indoor unit installation 3 2 Super slim cassette indoor unit installation 3 2 1 Service space for indoor unit Connecting point of Connecting point of drain pipe refrigerant pipe Liquid side E Connecting point of __ _______________ refrigerant pipe w I Gas side B sss SESS Ceiling ERES 7 Outlet Inlet Outlet N Panel gt 1000 1000mm 880mm ceiling hole p P Ground gt 2500 3 2 2 Bolt pitch Tubing side Drain side do c a PI Ul SS e E Y _ Lm z x S HE o e il ee M e n T Axis l p a 780 Hook location Unit mm 840 Body 950 3 2 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 12mm 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings 76 Installation Indoor unit installation 3 2 4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it Adjust the hexangular nuts on the four installation hooks evenly to ensure the balance of th
40. SWITCH 3 CORE SHIELDED WIRE O INDOOR COMM BUS NOTE PLEASE USE NOTE Four way valve PFC INDUCTOR is used in the LOW PRESSURE SWITCH Cooling amp Heating unit only 4 WAY VALVE CONDENSER TEMPERATURE SENSOR RANGE OUTDOOR AMBIENT TEMPERATURE SENSOR CNS ON BLACK 4 2 Oa EXHAUST TEMPERATURE SENSOR POWER FILTER E 2 _ O CURRENT DETECTOR POWER RECTIFIER NOTE FOR NORTH AMERICAN UNIT ONLY RED WIRING DIAGRAM OUTDOOR UNIT Applicable to the units Applicable to the units 202075890647 adopting motor only Applicable to the units adopting motor only 1 1 MEL EV i E ELECTRIC EXPANSIVE D VALVE an H i i RED 1 t FM1 FM2 OUTDOOR DC FAN MAIN BOARD m EXHAUST F I TEMPERATURE SENSOR I NOTE Four way valve CONDENSER pen mine TEMPERATURE SENSOR LSV OUTDOOR AMBIENT TEMPERATURE SENSOR n HEATSINK 5 TEMPERATURE SENSOR p a 6 N LN A OPTIONAL EEV e 8 CH4 We d pd sy TH T T8 T H PRO L PRO S TO INDOOR COMM BUS NOTE PLEASE m 3 CORE SHIELDED WIRE POWER SUPPLY FORNORTHANERIGAN 66 Part 3 Electric Characteristics 5 Electric Characteristics Ou
41. Select the suitable pipe insulation except joint section piping layout and connection drainage test insulate the joint parts 9 2 2 Purpose of drainage pipe insulation The temperature of condensate drainage water is very low If insulation is not enough it shall form dew and cause leakage to damage the house decoration 100 Installation Engineering of electrical wiring 9 2 3 Insulation material selection for drainage pipe Theinsulation material should be flame retardant material the flame retardancy of the material should be selected according to the local law gt Thickness of insulation layer is usually above 10mm gt Use specific glue to paste the seam of insulation material and then bind with adhesive tape The width of tape shall not be less than 5cm Make sure it is firm and avoid dew 9 2 4 Installation and highlights of insulation construction gt single pipe should be insulated before connecting to another pipe the joint part should be insulated after the drainage test There should be no insulation gap between the insulation material 10 Engineering of electrical wiring 10 1 Highlights of electrical wiring installation gt field wiring construction should be finished by qualified electrician Air conditioning equipment should be grounded according to the local electrical regulations gt Current leakage protection switch should be installed gt Do not connect the power wire to
42. Space 3 Service Space Part 3 Wiring Diagrams 4 Wiring Diagrams MFAU 12HRFN1 M FUNCTION OF SWITCHES TO WIRE CONTROLLER WIRING DIAGRAM INDOOR UNIT 1 1 1 1 1 1 eee SWITCH BOARD P CODE PART NAME 1 CN1 CN20 P C BOARD SOCKETS INDOOR DC FAN MOTOR yer M0 1 UPPER OUTLET SWING MOTOR 1 TEMP COMPENSAT ON m LOWER OUTLET SWING MOTOR 51102 as TEMPERATURE 1 6 PIPE TEMPERATURE TEMPERATURE T T2B TEMPERATURE 1 1 5 CONNECTORS 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 DISPLAY BOARD CN101 CN201 CN202 1 55 CONNECTORS XT1 BLACK WHITE X53 1 x2 x 2 VN M 8 54 225 RT2 RT1 NOTICE 1 THE TYPE_SELECTION AND MO MU HAS BEEN SET BEFORE LEAVING THE FACTORY ANYONE CAN T MODIFY IT EXCEPT THE MAINTENANCE PERSON THE STRONGEST LEVEL OF AIR FLOW RATE THE SECOND STRONGEST LEVEL OF AIR FLOW RATE FACTORY SETTING PIPE ROOM I l TO OUTDOOR UNIT NOTICE 2 NOTE PLEASE USE PLEASE CUT OFF THE JUMPER J1 IF YOU CONNECT 4 1 1 1 I lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt lt ey NET MODULE NET MODULE TO CCM PUER SUPPLY
43. T temperaresensor ES Voltage protection of compressor 0 Outdoor fan speed has been out of control Top temperature protection of compressor High pressure protection For 36 48 Low pressure protection For 36K 48K Current protection of compressor Discharge temperature protection of compressor BENT High temperature protection of condenser module protection High temperature protection of evaporator In low ambient cooling mode the LED displays LC or alternative displays between running frequency and LC each displays 0 55 120 Electrical Control System Troubleshooting 2 4 Solving steps for typical malfunction 2 4 1 For the indoor unit 2 4 1 1 Open or short circuit of temperature sensor Check the connections between temperature sensor and PCB Are the connections good gt Correct the connections Yes Y Check the resistance value of the sensor via Appendix Yes Replace indoor or outdoor PCB No v Replace the sensor Electrical Control System 121 Troubleshooting 2 4 1 2 Outdoor unit malfunction Outdoor unit malfunction Whether the outdoor main board has error display No Y Whether the outdoor unit is power on Yes Refer to corresponding solving steps Yes Check whether the communication wire between the
44. TE LA H LATA SLAVE LORE TE 3 Lx 30 a TE 35 stop TES 16 ending k WIRING DIAGRAM INDOOR UNIT 202042590 191 ib NH s GH13 RED BROWN _ BLUE Lu XT1 Dutdeor Unit NOTE The wiring diagram K m 1 7 is for explanation purpose only The actual shape of the components different WIRING CODE 11 40 RTI y 1 XP6 XS1 XS6 REMOTE TO QUTDOOR UNIT ins 2 SW1 SW5 ON H in of F tis SWD SWS ENG 1 __________ T WIRE CONTROLLER DIAGRAM INDOOR UNIT 4 WAY TERMINAL WIRE CONTROLLER DISPLAY OARD Fac tory Lu E Emm DT IT e TO TO OUTDOOR COMM BUS COMM BUS NOTE PLEASE USE SHIELDED WIRE Indoor Units Electric Characteristics 6 Electric Characteristics Model MCA2U 12HRFN1 M 208 230V 187V 253
45. Time A Designed B Time B Designed C Time C Designed D Time D Designed Product Category C Cassette Type V AHU Type T Duct Type F Console Type U Ceiling amp Floor Type H High Static Pressure Duct Type Midea 3 2 Outdoor Unit MOU T 36H D N1 R RCA Energy Efficiency Code Power Supply 220 240V 1N 50HZ R 380 420V 3N 50Hz 220 230 1 60Hz D 220 3N 60Hz C 380 420v 3N 60HZ Refrigerant N1 R410A R22 D DC Inverter On Off F Full DC Function Code C Cooling Only H Cooling amp Heating A Cooling amp Heating PTC Capacity x1000Btu h T Tropical Condition T1 Condition U Side Discharge Outdoor Unit V Top Discharge Outdoor Unit S Centrifugal Fan Outdoor Unit O Outdoor unit Midea 4 General Information Features 4 Features 4 1 Low ambient kit is standard for outdoor units 4 2 Network control function is standard for the indoor units 4 3 Standard auto restart function and follow me function 4 4 Slim cassette with standard remote controller wire controller and CCM for optional Med Duct and HESP duct with standard wired controller remote controller and CCM for optional 4 5 Standard anti cold air function 4 6 Standard auto defrosting function 4 7 Standard self diagnose function 4 8 Standard timer function and sleep mode function controlled by controller General Information 5 Indoor Uni
46. V MCD 24HRFN1 M MCD 36HRFN1 M MCARUABHRENTAK 200230 253V 7 Sound Levels 1 4m Model MCA2U 12HRFN1 M 51 51 MCA2U 18HRFN1 M 51 MCD 24HRFN1 M 52 MCD 36HRFN1 M Indoor Units 17 Accessories 8 Accessories Quantity 1 Expansible hook n Installation fittings 2 Installaionhook 2 Installaionhook hook 3 Installation paper board 4 Out let pipe sheath 1 Drainpipe Fittings T Drain joint 8 Remote controller Remote controller amp Its Others 13 Installation manual 18 Indoor Units The Specification of Power 9 The Specification of Power 18000Btu h 24000 36000Btu h Power e 208 230V 60Hz 208 230V 60Hz Circuit Breaker Fuse A 40 30 40 30 m 2 0 4 0 Outdoor Unit Power Weak Electric Signal Indoor Units 19 Field Wiring 10 Field Wiring MCA2U 12HRFN1 M MCA2U 18HRFN1 M Air Condition Link Circulit INDOOR UNIT Use 4 cable OUTDOOR UNIT Ta Power supply LJ Use 3 care cable 144WVG Use 2 core cable Power supply Lise 3 core cable 12AVVG OUT UNIT Air Condition Link Circult 20 Indoor Units Indoor Units lp 2 Dimensions 3 Service 4 Wiring Diagrams 5 Static Pressure
47. Yes gt Stop the unit Judge 4 Check whether the outdoor unit is bad Make the outdoor unit ventilate well ventilation No v Judge 5 Check whether the heat exchanger is dirty Let the refrigerant out then use the Judge 6 Check whether the high pressure nitrogen or refrigerant to pes Yes I refrigerant pipe is blocked blow pipe vacuumize and charge the refrigerant again Replace outdoor main board Yes gt Clean the heat exchanger 136 Electrical Control System Troubleshooting 2 4 4 11 P2 malfunction Only for 36K 48K P2 display Low pressure protection Judge 1 Whether the wiring between the low pressure protector and main gt Connect it well control board is connected well or correctly Yes v Judge 2 Whether the low pressure protector is broken Method Short connect the low pressure protector socket check whether the system can run normally No Y Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient Yes Stop the unit temperature is too low Yes Replace low pressure protector No Y Judge 4 The refrigerant of the system is leakage Leak hunting Charge nitrogen or refrigerant Method Connect the pressure to the
48. and outdoor unit not exceeded the date in the TOI table 5 2 The procedure of connecting pipes 5 2 1 Choose the pipe size according to the specification table 5 2 2 Confirm the cross way of the pipes 5 2 3 Measure the necessary pipe length 5 2 4 Cut the selected pipe with pipe cutter Make the section flat and smooth x pd x o X7 Lean Crude Burr 7 7 7 Z 5 2 5 Insulate the copper pipe gt Before test operation the joint parts should not be heat insulated 5 2 6 Flare the pipe gt Inserta flare nut into the pipe before flaring the pipe According to the following table to flare the pipe dimension A NN NN Pipe diameter Flare shape ee gt After flared the pipe the opening part must be seal by end cover or adhesive tape to avoid duct or exogenous impurity come into the pipe 5 2 7 Drill holes if the pipes need to pass the wall 5 2 8 According to the field condition to bend the pipes so that it can pass the wall smoothly 5 2 9 Bind and wrap the wire together with the insulated pipe if necessary 92 Installation Refrigerant pipe installation 5 2 10 Set the wall conduit 5 2 11 Set the supporter for the pipe 5 2 12 Locate the pipe and fix it by supporter gt For horizontal refrigerant pipe the distance between supporters should not be exceed 1m Forvertical refrigerant pipe the distan
49. ard and the grille For models 48 and 60 do not remove the grille Installation 87 Indoor unit installation Side board NEn eee SS SS 1 AERE amp SaaS ES ST N SSS SS na L Grille Locate the hanging arm on the hanging screw bolt for some of the models 60 do not do this Prepare the mounting bolts on the unit 8 13mm Hangin bolt N Screw nut Washer Hanging arm INDOOR UNIT Hanging screw bolt Mounting bolt max 40mm Hang the unit on the hanging arm by sliding backward Securely tighten the mounting bolts on both sides some of the models 60 do not do this Hangin bolt N Hanging arm For some of the models 60 please securely tighten the mounting bolts on both sides Installation 88 Hangin decise bolt Then install the side panels and grilles back to the main unit 2 Floor standing installation lt 4 Indoor unit installation Hang the indoor unit on the hook The bottom of body can touch with floor or suspended but the body must Install vertically Installation 89 Indoor unit installation 3 6 Console indoor unit installation 3 6 1 Service space for indoor unit pi z100mm _ i
50. ath Tubing amp Fittings Binding tape Seal sponge Drain joint 8 Accessories Drainpipe Fittings for cooling amp heating Seal ring Wired controller amp Its Frame Wired controller Owner s manual Installation manual Magnetic ring twist the electric wires L and N around it to five circles EMS amp It s fitting Indoor Units 33 The Specification of Power 9 The Specification of Power 12000 18000Btu h 24000 48000Btu h ELEM LE Power Frequency E 208 230V 60Hz 208 230V 60Hz Circuit Breaker Fuse A 40 30 40 30 Outdoor Unit Power i Strong Electric Signal 3 core ETE wire Weak Electric Signal 34 Indoor Units Field Wiring 10 Field Wiring MTBU 12HRDN1 M MTBU 18HRDN1 M Air Condition Link Circulit INDOOR UNIT Use 4 cable OUTDOOR UNIT Ta Power supply Li Use 3 care cable 144WVG J Use 2 core cable 16AWG Power supply Lise 3 core cable 12AVVG OUT UNIT Air Condition Link Circult Indoor Units 35 Field Wiring 36 Ceiling amp Floor Type uci GS u uuu 222 37 S T I 39 Service u ua 42 WINO cusa usu eau 43 Electric Characteristics 45 Notum 45 STAC COS SONICS 46 The Specification of Power
51. can run normally Replace outdoor main board and then check Yes Yes normally and retry 15 error still display whether the system can run 4 Y Replace the electric control Y box Electrical Control System is solved Troubleshooting 131 Troubleshooting 2 4 4 6 E4 malfunction E4 display Judge 1 Outdoor condenser temp sensor T3 is malfunction Check whether the wiring of the condenser temp sensor T3 is broken off Yes Connect the wiring well No Y Check whether the resistance of condenser temp sensorT3 is wrong refer to the Appendix 1 Yes Replace condenser temp sensor T3 No v Judge 2 Outdoor ambient temp sensor T4 is malfunction Check whether the wiring of the outdoor ambient temperature sensor T4 is broken off Yes Connect the wiring well Check whether the resistance of outdoor ambient temperature Yes sensor T4 is wrong refer to the Replace outdoor ambient temperature sensor T4 Appendix 1 No v Replace outdoor main PCB 132 Electrical Control System Troubleshooting 2 4 4 7 E5 malfunction For single phase units E5 display protection
52. ce between supporters should not be exceed 1 5m 5 2 13 Connect the pipe to indoor unit and outdoor unit by using two spanners Be sure to use two spanners and proper torque to fasten the nut too large torque will damage the bellmouthing and too small torque may cause leakage Refer the following table for different pipe connection Pipe Diameter 1 4 6 35 144 176 1420 1720 3 8 9 52 333 407 3270 3990 1 2 12 7 504 616 4950 6030 5 8 15 9 630 770 6180 7540 3 4 19 990 1210 9270 11860 Installation 93 Drainage pipe installation 6 Drainage pipe installation Install the drainage pipe as shown below and take measures against condensation Improperly installation could lead to leakage and eventually wet furniture and belongings 6 1 Installation principle Ensureatleast 1 100 slope of the drainage pipe Adopt suitable pipe diameter Adopt nearby condensate water discharge 6 2 Key points of drainage water pipe installation 6 2 1 Considering the pipeline route and elevation Before installing condensate water pipeline determine its route and elevation to avoid intersection with other pipelines and ensure slope is straight 6 2 2 Drainage pipe selection gt drainage pipe diameter shall not small than the drain hose of indoor unit According to the water flowrate and drainage pipe slope to choose the suitable pipe the water flowrate is decided by the capacity of indoor unit Relationship betwee
53. ck whether the normal DC277 356V for 18K No No 2 24K 30KBtu h DC277 410V for is 2 36K 48KBtu h Yes No Check whether the connecting line between main No Connect it tightly board and the IPM module is check ok or not heck whether th connected tightl ower supply line is onnect it correcti P and tightly check ok connected correctly or not and tightly Yes No No Check whether the connecting line of the compressor is connected correctly or tightly Connect it well check ok or not Check whether the lines in E part box are connected tightly Connect it tightly check ok or not Yes No Yes lt No Replace the IPM module check whether the system can work normally Check whether the bridge rectifiers are normal Use the multimeter to measure the resistance between each two terminals check whether there is the condition that value of No resistance is 0 Yes No eplace the main board Yes check whether the system Yes Replace the bridge rectifiers can work normally Check whether the connecting line of every reactor is normal If the line is broken the resistance of the two ports No is for 18K 24K 30KBtu h Check whether the PFC module broken for 36K 48KBtu h No Replace the compressor check whether the
54. cover Note The panel shall be installed after the wiring connected Installation 79 Indoor unit installation 3 3 A5 duct indoor unit installation 3 3 1 Service space for indoor unit 200mm or more 300mm or more lt N N ix VA 7 7 600mmA600mm checking orifice 3 3 2 Bolt pitch Electric control box Size of outline dimension mounted plug J w _ m 9 3 3 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 12mm 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings 80 Installation Indoor unit installation 3 3 4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it Adjust the hexangular nuts on the four installation hooks evenly to ensure the balance of the body Use a leveling instrument to make sure the levelness of the main body is within 1 Screw nut Shockproof cushion Overhang part Washer Hanging screw bolt 3 3 5 Install the air filter Insert the air filter through the filter slot and fix it with 2 screws t ote n 2 25 os x A 2 C A 0000009 5 a 2 i nte 209 e 25 424 Se 2
55. dB A MUBU T2HRFNT V MUBU T8HRFNT V MUE 2AHRENT M MUE 36HRFNT M MUE ASHRENT M Indoor Units 45 Accessories 7 Accessories 1 Remote controller Remote controller amp Its 2 Remote controller holder holder 5 5 0wnersmanudl 5 0wnersmanudl 8 The Specification of Power 12000 18000Btu h 24000 48000Btu h Power Frequency 208 230V 60Hz 208 230V 60Hz ensi Circuit Breaker Fuse A 40 30 40 30 Outdoor Unit Power ub Strong Electric Signal Weak Electric Signal 46 Indoor Units Ceiling amp Floor Type 9 Field Wiring MUBU 12HRFN1 M MUBU 18HRFN1 M Air Condition Link Circulit INDOOR UNIT 4 cable OUTDOOR UNIT Ta Power supply to Use 3 care cable 144WVG MUE 24HRFN1 M MUE 36HRFN1 M MUE 48HRFN1 M 202070590697 INDOOR UNIT Use 2 core cable 16AWG Power supply Lise 3 core cable 12 gt O Air Condition Link Circulit Ceiling amp Floor Type 47 Features 48 Console Type 49 DIINGIISIQDS 51 SPACE REI CESR FEE MEL 52 Wiring Diagrams 53 Electric Characteristics 54 OGUNA mcm 55 PAC COS SONICS anos ce tm 56 The Specification of Power 56 57 Indoo
56. door ambient temperature T5 Compressor discharge temperature 1 2 Main Protection 1 2 1 Time delay at restart for compressor 1 2 2 Temperature protection of compressor top The unit will stop working when the compressor top temp protector cut off and will restart after the compressor top temp protector restart 1 2 3 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules For 12K 18K units Compressor discharge temp 5 gt 115 for 5s compressor stops 108 lt 5 lt 115 C decrease the frequency to the lower level every minutes till F1 90 lt 75 lt 105 C keep running at the current frequency T5 90 C no limit for frequency For other units 1 102 lt 75 lt 115 C decrease the frequency to the lower level every 2 minutes till to F1 f T5 gt 115 C for 10 seconds the compressor will stop and restart till T5 90 C 1 2 4 Sensor protection at open circuit and breaking disconnection 1 2 5 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 10s later If the unit runs in heating mode the indoor fan will be also controlled by anti cold wind function 1 2 6 Fan Speed is out of control When Indoor Fan Speed keeps too low For Super slim cassette less than 200RPM for other units less than 300RPM for 50s the unit will stop and
57. e body Use a leveling instrument to make sure levelness of the main body is within 1 Adjust the position to ensure the gaps between the body and the four sides of ceiling are even The body s lower part should sink into the ceiling for 10 12 mm In general L is half of the screw length of the installation hook Ceiling 7 Locate the air conditioner firmly by wrenching the nuts after having adjusted the body s position well 3 2 5 Install the panel Remove the grille Installation 77 Indoor unit installation Grid switch Remove the 4 corner covers Hang the panel to the hooks on the mainbody If the panel is with auto lift grille please watch the ropes lifing the grille DO NOT make the ropes enwinded or blocked Hook pane 21 gt lt lt RG Water receiver Cross screwdriver Tighten the screws under the panel hooks till the panel closely stick on the ceiling to avoid condensate water 78 Installation Indoor unit installation D Loosen upper nut Gap not allowed Leakage Ceiling Pollution Water condensation 6 Hang air in grill to panel then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively Install the 4 corner covers back Installation cover s rope Tap Screw Slide the four sliders in the corresponding channel when installing the
58. e could achieve the effect of vacuum drying but this method could not achieve drying thoroughly when there is too much moisture Therefore special attention shall be drawn to prevent the entering of water and the formation of condensate water 3 Vacuum drying again for half an hour If the pressure reached 755 start to pressure leakage test If it not reached the value repeat vacuum damage and vacuum drying again for 1 hour 4 Leakage test After the vacuum degree reaches 755mmHg stop vacuum drying and keep the pressure for 1 hour If the indicator of vacuum gauge does not go up it is qualified If going up it indicates that there is moisture or leak source 98 Installation Additional refrigerant charge Additional refrigerant charge After the vacuum drying process is carried out the additional refrigerant charge process need to be performed The outdoor unit is factory charged with refrigerant The additional refrigerant charge volume is decided by the diameter and length of the liquid pipe between indoor and outdoor unit Refer the following formula to calculate the charge volume Diameter of liquid pipe mm 6 35 9 52 12 7 V Additional refrigerant charge volume g L The length of the liquid pipe m Note gt Refrigerant may only be charged after performed the vacuum drying process Always use gloves and glasses to protect your hands and eyes during t
59. ect the power wire Is the error still displaying after several minutes Yes Y Check if there s any interference Remove interference ouch as too many lamps power A Yes Increase the capacity of anti transformers Or the signal wire is interference too long Y Check whether the signal wire is shield cable or whether the shield cable earthing cable is earthing Yes Check whether the wire is correct No x Comadt fesso OR polarity P to P Q to Q E to E Yes Check whether the signal wire is Yes gt Replace the signal wire broken No ener gt Pull out and insert back insert on main PCB well Yes Y Replace indoor main PCB is the error distinguished No Y Replace the outdoor main PCB 130 Electrical Control System 2 4 4 5 E3 malfunction E3 display Communication malfunction between IPM board and outdoor main board Is there at least one LED in the IPM board light No Y Check the signal wire between the IPM module and the main Yes board is it connected good No v No Replace IPM board and then check whether the system
60. eration Push the button again to stop the unit operation 2 MODE Once pressing running mode will be selected in the following sequence NOTE No heating mode for cool only type unit 3 SLEEP Button Active Disable sleep function It can maintain the most comfortable temperature and save energy This function is available on COOL HEAT or AUTO mode only NOTE While the unit is running under SLEEP mode it would be cancelled if MODE FAN SPEED or ON OFF button is pressed 4 VERT SWING Used to stop or start horizontal louver movement and set the desired up down air flow direction The louver changes 6 degree in angle for each press If keep pushing more than 2 seconds the louver will swing up and down automatically 5 HORIZ SWING Used to stop or start vertical louver movement and set the desired left right air flow direction The louver changes 6 degree in angle for each press If keep pushing more than 2 seconds the vertical louver swing feature is activated 6 FEEL SELF CLEAN Function Press this button less than 2 seconds will initiate FEEL function And if keep pressing this button more than 2 seconds the SELF CLEAN function is initiated 7 RESET Button When the RESET button is pushed all of the current settings are cancelled and the control will return to the initial settings 8 LOCK Button Push this button to lock in all the current settings To release settings push again 9 FAN SPEED Button Fan speed wi
61. et currently Press the button CLOCK for 4 seconds the HOUR part will flash press button A and V to adjust HOUR Press the button CLOCK again the minute part flash press button A or Y to adjust MINUTE After clock set or clock operation it must press CONFIRM to complete the set 6 TIMER ON OFF display Display ON at the state of TIMER ON adjustment or after only set the TIMER ON Display OFF at the state of TIMER OFF adjustment or after only set the TIMER OFF Display ON OFF if simultaneously set the mode of TIMER ON and TIMER OFF 7 Temperature display area Usually display the set temperature Press the buttons of and to set temperature at the mode of FAN there is no figure display in the area Electrical Control System 149 Controller Remark The wired controller will reset to factory setting with auto mode auto fan and 24 setting temperature And this may cause inconsistent displays on the wired controller and on the air conditioner You need to readjust the running status through the wired controller Installation Wiring Principle Sketch 5 SD o 5 Shield Cable the length is decided by installation RUN GND Indoor Unit Switch Board Installation Notice When the air conditioner needs the constant frequency wire Controller be sure adding a Wire Joint with 5 terminal named A B C D E in indoor unit and fixing a infrared emitter whose anode and cathode co
62. gain Judge 5 The refrigerant pipe is blocked Replace outdoor main board and check whether Yes the system can run normally No Y Y Replace the electric control box Yes gt Trouble is solved p 138 Electrical Control System Troubleshooting 2 4 4 13 P4 malfunction When compressor discharge temperature is higher than 115 the unit will stop and unit runs again when compressor discharge temperature is lower than 90 C P4 display Temperature protection of compressor discharge Check whether the Check whether the compressor discharge temp Yes Yes Stop leaking and add refrigerant S refrigerant is leak is more than 115 C No Check whether the wiring connection is right between compressor discharge temp sensor and PCB according to wiring diagrams Y Correct the wiring connection gt Yes v Judge The discharge temp sensor is broken Method Check whether the resistance of compressor discharge temp sensor is right refer to the Appendix 2 Y No Replace the compressor discharge temp sensor gt Yes Y Replace outdoor main board Trouble 15 solved Electrical Control System 139 Troubleshooting 2 4 4 14 P5 malfunction When condenser high temp is more
63. gher than 17 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed at low speed Anti cold wind function has the priority 1 3 7 3 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode but doesn t turns off 1 3 7 4 Timer setting is available 114 Electrical Control System Electrical Control Function 1 3 8 Auto Restart function The indoor unit is equipped with auto restart function which is carried out through an auto restart module In case of a sudden power failure the module memorizes the setting conditions before the power failure The unit will resume the previous operation setting not including Swing function automatically after 3 minutes when power returns 1 3 9 Drain pump control For Duct amp Cassette Adopt the water level switch to control the action of drain pump Main action under different condition every 5 seconds the system will check the water level one time 1 When the A C operates with cooling including auto cooling dehumidifying and forced cooling mode the pump will start running immediately and continuously till stop cooling 2 Once the water level increase and up to the control point LED will alarm and the drain pump open and continue checking the water level If the water level fall down and LED disalarmed drain pump delay close 1 minute and operate with the last mode Otherwise the entire system stop operating including the pump
64. he charge work Use electronic scale or fluid infusion apparatus to weight refrigerant to be recharged Be sure to avoid extra refrigerant charged it may cause liquid hammer of the compressor or protections Use supplementing flexible pipe to connect refrigerant cylinder pressure gauge and outdoor unit And The refrigerant should be charged in liquid state Before recharging The air in the flexible pipe and manifold gauge should be exhausted After finished refrigerant recharge process check whether there is refrigerant leakage at the connection joint part Using gas leakage detector or soap water to detect Installation 99 Engineering of insulation 9 Engineering of insulation 9 1 Insulation of refrigerant pipe 9 1 1 Operational procedure of refrigerant pipe insulation Cut the suitable pipe insulation except joint section flare the pipe piping layout and connection vacuum drying insulate the joint parts 9 1 2 Purpose of refrigerant pipe insulation During operation temperature of gas pipe and liquid pipe shall be over heating or over cooling extremely Therefore it is necessary to carry out insulation otherwise it shall debase the performance of unit and burn compressor gt Gas pipe temperature is very low during cooling If insulation is not enough it shall form dew and cause leakage gt Temperature of gas pipe is very high generally 50 100 during heating Insulation work must be carried o
65. hook holes positions showed in upper picture Drill four holes of 212mm 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings 2 Wall mounted installation Install the tapping screws onto the wall Refer to picture below i an LJ imm am IL LL IL LL LI LJ LL LL am IL imm an IL LT iL T LI LI 1 LL IL Ld IL LI L L L LI LL mmi LII IL 3 4 4 Install the main body 1 Ceiling installation The only installation method for the unit with drain pump Remove the side board and the grille Hanging Hanging arm screw bolt Grille Locate the hanging arm on the hanging screw bolt Prepare the mounting bolts on the unit 84 Installation Indoor unit installation Screw nut 20 25 Washer Hanging screw bolt Put the side panels and grilles back D Connecting point of refrigerant pipe D gas side E Connecting point of refrigerant pipe E Liquid side Drain point Downward declicity lower between 1 2 100 2 Wall mounted installation Hang the indoor unit by insert the tapping screws into the hanging arms on the main unit The bottom of body can touch with floor or suspended but the body must install vertically NV IILILILILILILILILILILILIIILILILILILILILILILILTILI
66. how 2A then Bit5 1 Frequency limit symbol caused by T2 Bit3 1 Bitt 1 Frequency limit Bit3 caused bv It means frequency limit a 2 1 caused by T4 T3 and Bit2 current caused by Tp Frequency limit Bit1 caused by current Frequency limit caused by voltage 2 1 The display value is between 30 120 degree If the temp is lower than 30 degree the digital display tube will show 30 If 17 the temp is higher than 99 degree the digital display tube will IGBT radiator temp Reserved show single digit and tens digit For example the digital display tube show 0 5 means the IGBT radiator temp is 105 degree the digital display tube show 1 6 it means the IGBT radiator temp is 116 degree Indoor unit number The indoor unit can communicate with outdoor unit well Condenser pipe temp of 1 indoor unit If the temp is lower than O degree the digital display tube will Condenser pipe temp of 2 indoor unit show O If the temp is higher than 70 degree the digital display tube will show 70 If the capacity demand is O the Condenser pipe temp of 3 indoor unit digital display tube will show 0 If the indoor unit is not 5 connected the digital display tube will show 1 Indoor unit capacity demand code Norm code 10 m TM l If capacity demand code is higher than 99 the digital display 2 Indoor unit capacity demand code tube will show single dig
67. idea North American Market SUPER DC INVERTER SERIES Service Manual 2013 LISAS B 1306 mper LL ER C nad MA EE Paka n bay v 4 n ate wes I Y 4 5 E Y V i WO YS Y A A 4 1 W WAN YA W AN N Y i i V MN TU Contents Part 1 General InfOrmallOD 1 INGOOR UNNS ctt 6 Outdoor 58 Insigllali0 u u 70 Part 5 Electrical Control u u uuu azas 103 specifications designs and information in this book are subject to change without notice for product improvement Contents General Information Part 1 General Information Model NICE RD DU I 2 2 External Appearances 3 2 3 2 3 3 NOmenclalul6 L _____ Fa Cuna 4 4 1 u u u ia u eral um qus MEME 5 General Information 1 Model Lists 1 Model Lists 1 1 Indoor Units R410A capacity multiplied by 1000Btu h o e e 4 cassette Coo
68. indoor temperature up If press and hold on it will increase at 1degree per 0 5 second Adjust button Set indoor temperature down if press and hold on it will decrease at 1degree per 0 5 Second Swing button First press start swing function second press stop swing Match to some model with swing function Economy operation button press this button the indoor unit operates in economy mode press again exit this mode it may be ineffective for some models Fan speed button press this button consecutively the fan speed will circle as follow Jy y Lock button hidden When you push the LOCK button all current settings are locked in and the wire controller does not accept any operation except that of the LOCK button Use the lock mode when you want to prevent setting from being changed accidentally or play fully Push the LOCK button again when you want to cancel the LOCK mode Name and function of LCD on the wire controller 152 Operation mode indication 4 3 Follow me function 4 ON OFF indication AUTO COOL ORY HEAT FAN ONLY gt SET TEMP 5 Fan speed indication TIMER ON OFF 2 Timer ON OFF T Does 7 Temperature display zone Operation mode indication When press MODE button the following mode can be selected in circle Auto Cool Dry Heat Fan only Auto Auto Cool Dry Heat Fan only gt Auto For cooling only model heat mode is ski
69. inute later Is it No The unit operates normally still displaying the error code Yes Y E off the power supply Replace indoor fan rotate the fan by hand Does motor it rotate properly 4 Yes Y Check the wires of fan motor No Are all the connections good Yes Y Check the voltage between Correct the connections every port and GND port of fan motor connector does it comply with the table No Y Yes Replace indoor main PCB Is it still displaying the error code DC motor voltage input and output control chip is inside the motor 2 DC motor voltage input and output NO Color Signal Voltage ___ 1 Red 280 50 ____ qoe 6 Bue FG 14475 124 Electrical Control System Troubleshooting Control chip is in main PCB UVW Feedback 1 5 1 Release the UVW connector Measure the resistance of U V U W V W If the resistance is not equal to each other the fan motor must have problems and need to be replaced Otherwise go to step 2 2 Power on and when the unit is in standby measure the voltage of pin4 5 in feedback signal connector If the value is not 5V change the PCB Otherwise go to step 3 3 Rotate the fan by hand measure the voltage of pin1 5 pin 2 5 and pin 3 5 in feedback signal connector If any voltage is
70. it and tens digit For example the digital display tube show 5 0 it means the capacity demand is 15 the digital display tube show 60 it means the capacity demand is 6 0 If the indoor unit is not connected the digital 2 3 Indoor unit capacity demand code display tube will show 116 Electrical Control System Troubleshooting 2 Troubleshooting 2 1 Display board 2 1 1 Icon explanation on indoor display board Super slim cassette 24K Temporary button Digital LED Infrared signal receiver Operation lamp Timer indicator Alarm indicator PRE DEF indicator cooling and heating type or fan only indicator cooling only type 2 1 2 Icon explanation on indoor display board Compact cassette 12K 18K Infrared signal receiver Temporary button Operation lamp _ Timer indicator Alarm indicator PRE DEF indicator cooling and heating type or fan only indicator cooling only type 2 1 3 Icon explanation on indoor display board Ceiling amp Floor 12K 18K 10 Operation lamp OPERATION CD D TIMER b O DEF FAN indicator cooling and heating I pe or fan only indicator cooling only type Timer indicator Alarm indicator Temporary button Infrared signal receiver 2 1 4 Icon explanation on indoor display board A5 Duct PRE DEF indicator cooling and heating type or fan only indicator cooling only type Timer indicator Alarm indicator Operation lamp
71. keep it for 24 hours to check whether there is leakage at joint section 6 3 2 Water discharge test 1 Natural drainage mode the indoor unit with outdoor drainage pump Infuse above 600ml water through water test hole slowly into the water collector observe whether the water can discharge through the transparent hard pipe at drainage outlet 2 Pump drainage mode 2 1 Disconnect the plug of water level switch remove the cover of water test hole and slowly infuse about 2000ml water through the water test hole be sure that the water will not touch the motor of drainage pump Cover of test hole Test hole 4 ae N Drain plug 2 2 Power on and let the air conditioner operate for cooling Check operation status of drainage pump and then connect the plug of water level switch check the operation sound of water pump and observe whether the water can discharge through the transparent hard pipe at drainage outlet In light of the length of drainage pipe water shall be discharged about 1 minute delayed 2 3 Stop the operation of air conditioner power off the power supply and put the cover of water test hole back to the original place a After stopped the air conditioner 3 minutes check whether there is anything abnormal If drainage pipes have not been distributed properly over back flow water shall cause the flashing of alarm indicator at remote controlled receiving board and even water shall run over the water
72. ling and heating 9 1 2 Outdoor Units Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units MUBU 12HRFN1 M MCA2U 12HRFN1 M MOC 12HFN1 MSOW Rotary GMCC MFAU 12HREN1 M MTBU 12HRDN1 M MOF 18HFN1 MSOW Rotary GMCC MCA2U 18HRFN1 M MTBU 18HRDN1 M MUE 24HRFN1 M MOU 24HFN1 M Rotary GMCC MCD 24HRFN1 M MTB 24HRFN1 M MUE 36HRFN1 M MOU 36HFN1 M Rotary MITSUBISHI MCD 36HRFN1 M MTB 36HWFN 1 M MUE 48HRFN1 M MOU 48HFN1 M Rotary MITSUBISHI MTB 48HWFNA1 M 2 General Information External Appearance 2 External Appearance 2 1 Indoor Units 4 way cassette 12K 18K 4 way cassette 24 48 Ceiling Floor 12K 18K Ceiling Floor 24 48 2 2 Outdoor Units Single fan outdoor unit Double fan outdoor unit General Information 3 Nomenclature 3 Nomenclature 3 1 Indoor Unit M U B T 36 H R D N1 RCA Energy Efficiency Code Power Supply 220 240V 1N 50Hz R 380 420V 3N 50Hz N 220 230V 1N 60Hz D 220 60Hz C 380 420V 3N 60Hz Refrigerant 1 R410A R22 D DC Inverter On Off F Full DC Control Mode W Wired Control E Electric Control M Mechanical Control Remote Control Function Code C Cooling Only H Cooling amp Heating A Cooling amp Heating PTC Capacity x1000Btu h T Tropical Condition T1 Condition Designed Time A
73. ll be selected in following sequence once pressing this button AUTO LOW MED HIGH 10 UP Button Push this button to increase setting temperature or to increase Hour during Clock time setting 11 DOWN Button Push this button to decrease setting temperature or to decrease Hour during Clock time setting NOTE Press and hold UP and DOWN buttons together for 3 seconds will alternate the temperature display between the OC amp OF scale 12 TIME ON Press this button to activate the Auto on time setting Each press will increase the time setting in 30 minutes increments up to 10 hours then at 1 hour increments up to 24 hours To cancel the Auto on time setting just press the button until the time setting is 0 0 13 TIME OFF Press this button to activate the Auto off time setting Each press will increase the time setting in 30 minutes increments up to 10 hours then at 1 hour increments up to 24 hours To cancel the Auto off time setting just press the button until the time setting is 0 0 14 TURBO Active Disable Turbo function Turbo function enables the unit to reach the preset temperature in the shortest time When press this button on heating mode applicable to the unit adopts PTC only the PTC will be energized and bring fast heating operation 15 CLOCK Button Used to set the remote clock 16 LED Button Disable Active indoor screen Display Electrical Control System 147 Controller
74. n water flowrate and capacity of indoor unit Capacity x1000Btu Water flowrate l h According to above table to calculate the total water flowrate for the confluence pipe selection For horizontal drainage pipe The following table is for reference Reference value of inner Allowable maximum water flowrate I h did diameter of pipe mm REMAN Slope 1 50 Slope 1 100 2 For branch pipe pves2 25 895 Attention Adopt PVCAO or bigger pipe to be the main pipe For Vertical drainage pipe The following table is for reference PVC pipe Allowable maximum water flowrate l h diameter B PVC25 For branch pipe Attention Adopt PVCAO or bigger pipe to be the main pipe 94 Installation Drainage pipe installation 6 2 3 Individual design of drainage pipe system The drainage pipe of air conditioner shall be installed separately with other sewage pipe rainwater pipe and drainage pipe in building gt drainage pipe of the indoor unit with water pump should be apart from the one without water pump 6 2 4 Supporter gap of drainage pipe gt In general the supporter gap of the drainage pipe horizontal pipe and vertical pipe is respectively 1m 71 5m and 1 5m 2 0m gt Each vertical pipe shall be equipped with not less than two hangers gt Overlarge hanger gap for horizontal pipe shall create bending thus leading to air block
75. ni i E TM M ih m n 11 Uti MIU Ut 11 p HT 232333 000001 111 dT 1111 1 15 tent gt Replace the motor or centrifugal fan Remove the ventilated panel firstly Remove a half of blower housing and take out the motor with centrifugal fan Directly remove two bolts and then replace the motor or centrifugal fan easily h Ventilated Panel 1 5 Reserved remote on off and central control ports Reserved remote on off ports and central control ports can connect the cable of an on off controller or a central controller to realize remote on off control function or group control function Remote on off ports Central control ports 1 6 Built in drain pump Optional gt Built in drain pump can lift the water to 750mm upmost It s convenient to install drainage piping under most space condition Indoor Units 23 Features 750mm upmost 1 7 Built in display board gt standard indoor unit can be controlled by wired controller gt There is a display board with a receiver the E box Move out the display and fix it in other place even in the distance of 10m The unit will realized remoter control The wired controller and the display board can display the error code or production code when the chips detect some failure Wired Controller Standard Remote Controller Optional 24
76. nnecting with and B near the receiver in the Indoor Unit Switch Board then connecting the terminal 5v GND Run in the Switch Board to C D E respectively Turn a screwdriver at the concave on bottom panel of the Wire Controller to remove the Back Cover Wire Controller Back Cover Wire Controller Top Cover Wire Controller LCD Wire Controller Board Wood Mounting Screw 4 20 Wire Controller Bottom Cover When installing the Wire Controller Cover be sure there is a holein the wall to avoid the Wire Controller Back Cover being fixed directly to the wall which is not allowed for the Wire Joint When installing the Wire Controller you should extrudes out ofthe Wire Controller Back Cover adjust the bottom of the Wire Controller Board to the Wire Controller Back Cover which should be fixed first then press the other end of the Wire NOTE Never turn screws too tightly or else the cover would be dented or the Liquid Crystal breaks Please leave enough long cable for maintenance of the Wire Controller Board 150 Electrical Control System Controller 3 2 2 KJR 12B Jm Name and functions of buttons on the wire controller 7 ON OFF BUTTON TIMEROFFBUTTON 8 FOLLOW ME BUTTON ELECTRICAL HEATER BUTTON 5 RESETBUTTON ADJUST BUTTON A 9 ADJUST BUTTON Y SWING BUTTON di ECONOMY BUTTON 12 FAN SPEED BUTTON 13 LOCK
77. ode 1 3 2 1 Outdoor PMW open angle control The unit is working in heating mode with the EXV open 300P for 3 minutes then adjusting PMW open angle according to the temperature of compressor discharge every 2 minutes 1 3 3 2 Outdoor fan running rules For 12k units 17 15 For 18K units 17 15 12 10 For other units 108 Low High Low Medium RS High Y DC FAN SSLOW SPD DC FAN SLOW SPD ADD DC FAN MIN SPD ADD DC FAN MID SPD ADD DC FAN HI SPD ADD Electrical Control System Electrical Control Function 1 3 3 3 Indoor fan running rules When the compressor is on the indoor fan can be set to high med low auto And the anti cold wind function has the priority Auto fan action For Console 12K T1 Ts AT 4 Low 2 5 N 2 ES Medium 15 High Y For 2rd Ceiling floor amp Compact cassette amp A5 Duct 12 18K T1 Ts 6 AT 4 Low 2 5 N 2 Medium 1 5 ke High Y For other units T1 Ts AT 4 Low 22 4 e 3 Medium 4 High Y 1 3 3 4 Defrosting mode For 12K 18Kunits Condition of defrosting 4 gt 0 Electrical Control System 109 Electrical Control Function Defrosting starts when either of the following 080 DThe units run with T3 lt 3 C for 40 minutes and keeps lower than TCDI C for more than 3 minutes 2 The units run with T3 lt 3 C for 80 minutes
78. or connector connector gt lonizer can be switched on or by remote controller When pressing the Clean Air button on the remote controller lonizer will work and the indicator light on display board will shine 10 Indoor Units Features 24K 36K 2 4 External air duct design gt Reserve external air duct more flexible for the air supply 2 5 Built in draining pump gt Due to the improvement of structure more convenient to repair or replace the draining pump E 4 x 1 gt Bullt in draining pump to make sure condensed water drain out reliably 750 Ceiling Indoor Units 11 Features 24K 36K 2 6 Terminals for alarm lamp and long distance on off controller connection are standard Reserve terminals for the connection of alarm lamp and long distance on off controller more human control ore lt x 39 ALARM CN33 ON OFF CN23 Long distance on off controller 2 7 Optional touch screen wired controller Touch screen wired controller is optional with error code indication function Better man machine conversation interface Undated structure design 4 way wire layout design no raised part at backside more convenient to place the wires and install the device 12 Indoor Units Dimensions 3 Dimensions 647 Panel Unit mm af 7
79. or and indoor units The gas side and liquid side stop values are both opened The air conditioner is pre heated by turning on the power 11 3 Test operation Set the air conditioner under the mode of COOLING by remote controller and check the following points Indoor unit Whether the switch on the remote controller works well Whether the buttons on the remote controller works well Whether the air flow louver moves normally Whether the room temperature is adjusted well Whether the indicator lights normally Whether the temporary buttons works well Whether the drainage is normal Whether there is vibration or abnormal noise during operation V Y V V V V V V utdoor unit Whether there is vibration or abnormal noise during operation Whether the generated wind noise or condensed of by the air conditioner have influenced your neighborhood Whether any of the refrigerant is leaked v VO YV V V V V V V V 102 Installation Electrical Control System Electrical Control System Part 5 Electrical Control System 1 Electrical Control Function 104 22 TEOUDIESNOOUNG 117 3 ETT TP 146 103 Electrical Control Function 1 Electrical Control Function Definition T1 Indoor room temperature T2 Coil temperature of indoor heat exchanger middle T2B Coil temperature of indoor heat exchanger outlet T3 Coil temperature of condenser T4 Out
80. or the first electrifying or resetting When push the button for 4 seconds the hour part on the clock display flashes every 0 5 seconds then push button and to adjust hour push the button CLOCK again the minute part flashes every 0 5 seconds then push and button to adjust minute When set clock or alter clock setting must push the confirm button to complete the setting Electrical Control System Controller Name and function of LCD on the wire controller 2 FAN speed 4 LOCK display aed s ee w 3 510 00 display 6X OFF ON display E ___ s Temperature display Economical operation display 1 Mode select button MODE Press MODE button to select COOL DRY HEAT or FAN ONLY mode HEAT is invalid for COOL ONLY wire controller 2 gt speed button FAN SPEED Press FAN SPEED to select fan speed from AUTO LOW MED and HIGH NOTE some air conditioners have no MED fan speed and then the MED is regarded as HIGH 3 Economical operation displays Press ECONOMICAL to display economical operation if press ECONOMICAL again then the display disappears 4 Lock display Press LOCK to display the icon of LOCK Press the button again then the icon of LOCK disappears In the mode of LOCK all the buttons are invalid except for LOCK button 5 CLOCK display Usually display the clock s
81. perature protection In drying mode if room temperature is lower than 10 C the compressor will stop and not resume until room temperature exceeds 12 1 3 5 3 Evaporator anti freezing protection condenser high temperature protection and outdoor unit frequency limit are active and the same as that in cooling mode 1 3 5 4 The outdoor fan operates the same as in cooling mode For other units Drying mode works the same as cooling mode in low speed All protections are active and the same as that in cooling mode 1 3 6 Timer function 1 3 6 1 Timing range is 24 hours Electrical Control System 113 Electrical Control Function 1 3 6 2 Timer on The machine will turn on automatically when reaching the setting time 1 3 6 3 Timer off The machine will turn off automatically when reaching the setting time 1 3 6 4 Timer on off The machine will turn on automatically when reaching the setting time and then turn off automatically when reaching the setting off time 1 3 6 5 Timer off on The machine will turn off automatically when reaching the setting off time and then turn on automatically when reaching the setting on time 1 3 6 6 The timer function will not change the AC current operation mode Suppose AC is off now it will not start up firstly after setting the timer function And when reaching the setting time the timer LED will be off and the AC running mode has not been changed 1 3 6 7 The setting time
82. pped Timer When adjust setting on time or only on time is set the ON is lighted When adjust setting off time or only off time is set the OFF is lighted If on and off timer are both set the ON and OFF are both lighted Follow me function There is a temperature sensor inside the wire controller after setting temperature it will compare the two temperatures and the space of wire controller will be the same as setting temperature It is available under cooling heating auto mode ON OFF indication When it is on the icon display otherwise it is extinguished Fan speed indication There are four fan modes low middle high auto For some models no middle fan then the middle fan is seen as high speed Electrical Control System Controller 6 Lock When the LOCK button is pressed the icon appears and other buttons is unable press again the icon disappears 7 Temperature display zone Generally it displays setting temperature it can be adjusted by press temperature buttonA and But in fan mode no display here Remark The wired controller will reset to factory setting with auto mode auto fan and 24 setting temperature when the air conditioner restarts after power failure And this may cause inconsistent displays on the wired controller and on the air conditioner You need to readjust the running status through the wired controller Installation Wiring Principle Sketch Inf
83. r Units Features 1 Features 1 1 Modern and elegant appearance gt simple and stylish designs can nicely harmonies with your living space 1 2 Four panels optional 1 3 Two air outlet ways Cooling mode Quick Cooling To maintain room temp gt outlet from top and bottom to make quick cooling When the A C is just switched on or room temp is still high cold air will be blown out from top and bottom air outlet to cool down the room quickly Air outlet from top to maintain room temp When the room has been cooled down or the A C has been opened over 1 hour cold air only from the top outlet to keep constant room temp Heating mode gt Anti cold air When the AC is just turn on temperature of evaporator is very low in this case in order to prevent cold air direct blowing only the upper louver is opened in a high position the lower louver closed Console Type 49 Features 1 4 Four air inlets 1 5 Low noise gt DC indoor fan motor which has five speeds Low noise and energy saving gt Advanced centrifugal fan technology makes a fast airflow and reduces the indoor noise lower to 28dB 1 6 Golden fin is optional 1 7 Active carbon filter is standard 50 Indoor Units 2 Dimensions MFAU 12HRFN1 M Indoor Units 700mm A7 0 __ SS gt Dimensions 51 Service
84. raed Pipe N 5 Shield Cable the length is decided by installation o O RUN GND Indoor Unit Switch Board Installation Notice When the air conditioner needs the constant frequency wire Controller be sure adding a Wire Joint with 5 terminal named A B C D E in indoor unit and fixing a infrared emitter whose anode and cathode connecting with A and B near the receiver in the Indoor Unit Switch Board then connecting the terminal 5v GND Run in the Switch Board to C D E respectively Electrical Control System 153 Controller While installing using Screwdriver or other tools to open the back cover from the inside Back cover of Wire Controller Front cover of Wire Controller LCD display Wood Mounting screw 4 20 Turning cover For the Terminal Group is standing After the back cover is out of the back cover so it Is fastened to fix up the necessary to obligate holes and front cover first lock It is forbiden to fasten difectly to the one of the two then the another NOTE The connecting wire should be a little longer as to take away the switch board easily for maintenance The connecting wire should be a little longer as to take away the controller easily for maintenance 154 Electrical Control System
85. rnal static pressure Pa speed 30 E Low speed VL Low speed 30 10 10 700 800 900 1000 1100 1200 1300 1400 1500 1100 1200 1400 1600 1800 2000 2200 2400 Air volume m h Air volume m h Indoor Units 29 Static Pressure 30 External static pressure Pa Pa 120 1 110 100 90 80 70 60 50 40 30 20 10 48 000Btu h Super high speed High speed speed N Low speed Air volume m h 1000 1300 1600 1900 2200 2500 2800 3100 Indoor Units Electric Characteristics 6 Electric Characteristics Hz Voltage Min Max MTBU 2HRONIM 206230 187v 253v MTBU SHRDNIM 60 208230 187v 253v _ 208 2007 187v 253v MTB 36HWFN1 M 60 208 230V 187V 253V MTB 48HWFN1 M 208 230V 187V 253V Indoor Units 31 Sound Level 7 Sound Level Concealed Duct Type Discharge Suction Duct Duct A 1 4m Cu 64 Noise level dB A sae 32 Indoor Units Accessories my Soundproof insulation she
86. system if the leakage is serious there iuis s ps Vh pb Y will be distinct gas leakage sound if the ane leakage is slight use the suds mixture of 0 14MPa water and abluent is also ok if it can make bubble or electronic leak detector No Let the refrigerant out then use the high Yes pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Judge 5 The refrigerant pipe is blocked No Replace outdoor main board Electrical Control System 137 Troubleshooting 2 4 4 12 P3 malfunction P3 display Current protection of compressor Judge 1 Check whether the input current of the power supply wire is more than 20A For 36K amp 48K with 1 phase it is 30A Yes v Check whether the refrigerant system is ok Judge 2 Check whether the outdoor ambient temperature is higher than 50 No Y Yes p Stop the unit Judge 3 Check whether the s Pa Yes Make the outdoor unit ventilate well outdoor unit is bad ventilation No Y Judge 4 Check whether the heat exchanger is dirty Yes p Clean the heat exchanger No Y Let the refrigerant out then use the high Yes pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant a
87. system Yes gt y can work normally Replace the connecting line or reactor or replace the PFC module Yes Trouble is solved p Electrical Control System 141 142 Troubleshooting 2 4 4 16 P7 malfunction P7 display High temperature protection of evaporator Whether compressor operates Yes Check whether the heat exchanger is dirty the air outlet is blocked and the indoor fan is running normal Y Whether the Clean the heat exchanger and the air outlet Check whether the indoor fan is running normal No Check refrigerant system such as clogging of capillary etc connection is good Yes Check the esistance value of the sensor via Appendix 1 1 it normal Yes hether the indoor PCB is normal No Reconnect and retest No Replace the indoor PCB No Replace the temperature sensor Electrical Control System Appendix 1 Temperature Sensor Resistance Value Table c kom e 32 3 35204 49 998 4 28359 4 5 45 46 4 289 49 Electrical Control System K Ohm 12 6431 12 0561 11 5000 10 9731 10 4736 10 000 9 55074 9 124
88. tallation Side Discharge Unit 91 5 Refrigerant pipe installation 92 6 Drainage pipe installation 94 7 Vacuum Drying and Leakage Checking 98 8 Additional refrigerant charge 99 9 Engineering of insulation 100 10 Engineering of electrical wiring 101 Ws TeSt Oper t ON t 102 Installation Installation Procedure 1 Installation Procedure Indoor unit installation Outdoor unit installation location selection location selection Indoor unit installation Outdoor unit installation Refrigerant pipe installation and insulation Refrigerant pipe installation and insulation Drainage pipe installation and insulation Drainage pipe installation and insulation Vacuum drying and leakage checking Additional refrigerant charge Insulation the joint part of refrigerant pipe Wiring connection and electric safety checking Test operation Installation 71 Location selection 2 Location selection 2 1 Indoor unit location selection V V V V V V V Y NON V The place shall easily support the indoor unit s weight The place can ensure the indoor unit installation and inspection The place can ensure the indoor unit horizontally installed The place shall allo
89. tdoor Unit Model so _ _ 202 MOU 24HFN1 M MOU 36HFN1 M MOU 48HFN1 M Note MFA Max Fuse Amps A Part 3 67 Operation Limits 6 Operation Limits Cooling operation Heating operation Room temperature gt 17 lt 30 Outdoor temperature 15 50 15 C 24 CAUTION 1 If the air conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optimum performance will be achieved during this operating temperature zone 68 Part 3 Sound Levels 7 Sound Levels Outdoor Unit Microphone H mn E 1 0m Noise Level dB A MOC 12HFN1 MS0W Part 3 69 Installation 70 Part 4 Installation 1 Installation Procedure 71 2 Location selection 72 Indoor unit installation 73 4 Outdoor unit ins
90. the LED will display the failure 104 Electrical Control System Electrical Control Function 1 3 Operation Modes and Functions 1 3 1 Fan mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan For 12 18K units E 4 3 5 High 3 0 Medium 1 5 10 Y Low 15 24 For other units 4 5 0 High 4 0 x Medium 3 0 E 2 0 Fi Y Low 15 24 1 3 2 Cooling Mode 1 3 2 1 Outdoor PMW open angle control The unit is working in cooling mode with the EXV open 300P for 3 minutes then adjusting PMW open angle according to the temperature of compressor discharge every 2 minutes 1 3 2 2 Outdoor fan running rules For 12K units T4 4 High 22 j 20 E Low Y Electrical Control System 105 Electrical Control Function For 18K units High 28 PUN 26 22 Medium 20 N 9 Low Y For other units DC FAN HI SPD ADD DC FAN MID SPD ADD DC FAN MIN SPD ADD DC FAN SLOW SPD ADD DC FAN SSLOW SPD ADD 1 3 2 3 Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low and auto The auto fan For Console 12k 4 3 5 High 3 Medium 1 5
91. the terminal of signal wire When power wire is parallel with signal wire put wires to their own wire tube and remain at least 300mm gap According to table in indoor part named the specification of the power to choose the wiring make sure the selected wiring not small than the date showing in the table Select different colors for different wire according to relevant regulations Donotuse metal wire tube at the place with acid or alkali corrosion adopt plastic wire tube to replace it There must be not wire connect joint in the wire tube If joint is a must set a connection box at the place The wiring with different voltage should not be in one wire tube Ensure that the color of the wires of outdoor and the terminal No are same as those of indoor unit respectively Installation 101 Test operation 11 Test operation 11 1 The test operation must be carried out after the entire installation has been completed 11 2 Please confirm the following points before the test operation The indoor unit and outdoor unit are installed properly Tubing and wiring are correctly completed The refrigerant pipe system is leakage checked The drainage is unimpeded The ground wiring is connected correctly The length of the tubing and the added stow capacity of the refrigerant have been recorded The power voltage fits the rated voltage of the air conditioner There is no obstacle at the outlet and inlet of the outdo
92. ts Part 2 Indoor Units A Way 7 DUCI TYDE 21 Ceiling amp Floor Type 36 CONSOLE TYDE 48 Indoor Units Indoor Units 4 way Cassette Type 4 way Cassette Type 1 Features 8 2 Features 24 36 cus u ES EUR UU RENS 9 3v DIMENSIONS 13 4 Service N 15 5 VVIFING S EIER 16 6 Electric Characteristics 17 7 SOUNG LEVEI S 17 9 ACCeSSOLGS cou 0 Dou 18 9 The Specification of Power 19 TO Field 20 Features 12K 18K 1 Features 12K 18K 1 1 New panel gt Q60 surrounding air outlet design affords comfortable feeling 1 2 Compact design gt body size is 570 260 570 just smaller than the ceiling board so its very easy for installation and will not damage the decoration The panel size 15 647x50x64 7mm The hooks are designed in the four corners of the body which can save installation space 1 3 Electric control box built in design gt E box is simply and
93. ulation make sure that heat radiation from the condenser is not restricted More than 30cm More than 60cm Service space More than 30cm N M E Dn ul as A Bc gt bw s 22 n N S NN 44 ex More than 60cm m lt More than 70cm Installation Indoor unit installation 3 Indoor unit installation 3 1 Compact cassette indoor unit installation 3 1 1 Service space for indoor unit rou a a F am An Gn js n Gs Outlet Inlet Ground 3 1 2 Bolt pitch Drain side 570 545 Hook location 570 647 Unit mm 3 1 3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 12mm 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings Installation T3 Indoor unit installation Face the concave side of the installation hooks toward the expansible hooks Determine the length of the installation hooks from the height of ceiling then cut off the unnecessary part If the ceiling is extremely high please determine the length of the installation hook depending on the real situation
94. um drying ways could be chosen namely ordinary vacuum drying and special vacuum drying 7 3 1 Ordinary vacuum drying 1 When conduct first vacuum drying connect pressure gauge to the infusing mouth of gas pipe and liquid pipe and keep vacuum pump running for 1hour vacuum degree of vacuum pump shall be reached 55mmHg 2 Ifthe vacuum degree of vacuum pump could not reach 55mmhHg after 1 hour of drying it indicates that there is moisture or leakage in pipeline system and need to go on with drying for half an hour 3 If vacuum degree of vacuum pump still could not reach 755 after 1 5 hours of drying check whether there is leakage source 4 Leakage test After the vacuum degree reaches 755mmHg stop vacuum drying and keep the pressure for 1 hour If the indicator of vacuum gauge does not go up it is qualified If going up it indicates that there is moisture or leak source 7 3 2 Special vacuum drying The special vacuum drying method shall be adopted when 1 Finding moisture during flushing refrigerant pipe 2 Conducting construction on rainy day because rain water might penetrated into pipeline 3 Construction period is long and rain water might penetrated into pipeline 4 Rain water might penetrate into pipeline during construction Procedures of special vacuum drying are as follows 1 Vacuum drying for 1 hour 2 Vacuum damage filling nitrogen to reach 0 5Kgf cm2 Because nitrogen is dry gas vacuum damag
95. unit water pump Pump head of big four way cassette 750mm Pump head of compact four way cassette 500mm The drainage pipe should be set down inclined after the lifting pipe immediately to avoid wrong operation of water level switch gt Refer the following picture for installation reference Hanger Down incline pipe N Sx 2 A Length of horizontal pipe lt 150mm B Ps Lift heightzthe pump head of water pump Flexible pipe 300mm 6 2 8 Blowhole setting gt For concentrated drainage pipe system there should design blowhole at the highest point of main pipe to ensure the condensate water discharge smoothly gt The air outlet shall face down to prevent dirt entering pipe gt Each indoor unit of the system should be installed it gt installation should be considering the convenience for future cleaning Blowhole Indoor unit Indoor unit Plug Plug A I H M 2 E e 6 2 9 The end of drainage pipe shall contact with ground directly 96 Installation Drainage pipe installation 6 3 Drainage test 6 3 1 Water leakage test After finishing the construction of drainage pipe system fill the pipe with water and
96. ut to prevent hurt by carelessness touching 9 1 3 Insulation material selection for refrigerant pipe gt burning performance should over 120 According to the local law to choose insulation materials gt thickness of insulation layer shall be above 10mm If in hot or wet environment place the layer of insulation should be thicker accordingly 9 1 4 Installation highlights of insulation construction gt Gas pipe and liquid pipe shall be insulated separately if the gas pipe and liquid pipe were insulated together it will decrease the performance of air conditioner Liquid pipe Insulation meterial Gas pipe 2 Pres NA HS M M X HN NZ The insulation material at the joint pipe shall be 5 10cm longer than the gap of the insulation material The insulation material at the joint pipe shall be inserted into the gap of the insulation material The insulation material at the joint pipe shall be banded to the gap pipe and liquid pipe tightly The linking part should be use glue to paste together Be sure not bind the insulation material over tight it may extrude out the air in the material to cause bad insulation and cause easy aging of the material vy v 9 2 Insulation of drainage pipe 9 2 1 Operational procedure of refrigerant pipe insulation
97. utdoor fan PMV running j 8 mins with 300P 480P PMV 1 3 3 5 High evaporator coil temp T2 protection For 12K 18K units T2 gt the compressor running frequency decreases to the lower level every 20s When the frequency decreases to F2 and the T2 is still over TEH2 C for 3 minutes the compressor will stop 12 lt 48 or TEH2 C T2 48 C for 6 minutes the frequency will not be limited 2 gt 60 C the compressor will stop and restart when T2 48 112 Electrical Control System Electrical Control Function For other units T2260 C the compressor will stop and restart when 2 lt 54 C 1 3 4 Auto mode This mode can be chosen with remote controller and the setting temperature can be changed between 17 30 In auto mode the machine will choose cooling heating or fan only mode according to AT AT T1 Ts For 12K 18K units mee o Rm For other units Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minutes and then choose mode according to 1 If the setting temperature is modified the machine will choose running function again 1 3 5 Drying mode For 12K 18K units 1 3 5 1 Indoor fan speed is fixed at low and can t be changed The louver angle is the same as in cooling mode 1 3 5 2 Low indoor room tem
98. uxo a 525 5252 3 3 6 Install the air duct Please design the air duct as below recommended picture Canvas tie in Canvas tie in Isolation booth Air dust filter Air inlet Air outlet Isolation booth checking orifi 81 Installation Indoor unit installation 3 3 7 Change the air inlet direction Take off ventilation panel and flange cut off the staples at side rail Air return flange 3 When install the filter mesh please plug it into flange inclined from air return opening and then push up 4 The installation has finish upon filter mesh which fixing blocks have been insert to the flange positional holes 82 Installation 3 4 Ceiling amp floor indoor unit installation 24K 48K 3 4 1 Service space for indoor unit 4 235mm SSS gt 35mm 3 4 2 Bolt pitch 1 Ceiling installation Capacity Btu h 18K 24K 2 Wall mounted installation Le LI a IL IL LL LL mmi LI LL ILI IL LT m T iL IL LI LL LJ Lud 11 Installation Indoor unit installation 21000mm 83 Indoor unit installation 3 4 3 Install the pendant bolt 1 Ceiling installation Select the position of installation hooks according to the
99. w easy water drainage The place shall easily connect with the outdoor unit The place where air circulation in the room should be good There should not be any heat source or steam near the unit There should not be any oil gas near the unit There should not be any corrosive gas near the unit There should not be any salty air neat the unit There should not be strong electromagnetic wave near the unit There should not be inflammable materials or gas near the unit There should not be strong voltage vibration 2 2 Outdoor unit location selection y V YV V V V V V Y YV V 72 The place shall easily support the outdoor unit s weight Locate the outdoor unit as close to indoor unit as possible The piping length and height drop can not exceed the allowable value The place where the noise vibration and outlet air do not disturb the neighbors There is enough room for installation and maintenance The air outlet and the air inlet are not impeded and not face the strong wind It is easy to install the connecting pipes and cables There is no danger of fire due to leakage of inflammable gas It should be a dry and well ventilation place The support should be flat and horizontal Do not install the outdoor unit in a dirty or severely polluted place so as to avoid blockage of the heat exchanger in the outdoor unit If is built over the unit to prevent direct sunlight rain exposure direct strong wend snow and other scraps accum

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