Service manual for on off fan effeciency LCAC_2014-8-1_
Contents
1. Cooling 45 43 40 35 STD 30 Heating 25 25 24 20 20 18 15 A 15 o 10 0 OG With Low 8 T Ambient 5 Cooling 5 E System WZ 2 0 0 5 0 5 5 5 5 7 7 10 10 10 1517 20 25 3032 35 0 5 10 15 20 25 30 Indoor temperature C WB Indoor temperature C WB 26 Sound Levels 7 Sound Levels Outdoor Unit p D 1 Microphone H gt L v 1 0m Note H 0 5 x height of outdoor unit 27 1 Electrical Control Function 2 Troubleshooting 3 Controller 28 Electrical Control Part 4 Electrical Control System Electrical Control Function 1 Electrical Control Function 1 1 Definition T1 T2 T4 T5 Indoor room temperature Coil temperature of evaporator Coil temperature of condenser Outdoor ambient temperature Compressor discharge temperature 1 2 Main Protection 1 2 1 Time delay at restart for compressor 1 2 2 Sensor protection at open circuit and breaking disconnection 1 2 3 Phase check function If the phase sequence is detected wrong or lack of 1 or 2 phase the unit won t start and there is error code displayed on out2. Super high speed High speed Mid speed OW speed 1000 1300 1600 1900 2200 2500 2800 3100 3400 Air volume m h Electric Characteristics 6 Electric Characteristics Indoor Unit Power Supply MUC 48HF2 220 240V 198V 254V MUC 60HF2 220 240V 198V 254V Note MFA Max Fuse Amps A 15 Sound Levels 7 Sound Levels Concealed Duct Type Discharge Suction Duct Duct A 1 4m Microphone Noise level dB A Model Accessories 8 Accessories E Soundproof insulation sheath Drainpipe Fittings Wire controller Wire controller oa CN others The Specification of Power 9 The Specification of Power MUC 48HF2 Frequency and Voltage 220 240V 50Hz INDOOR UNIT POWER 5 POWER WIRING mm Circuit Breaker Fuse A 20 16 Frequency and Voltage 380 415V 50Hz OUTDOOR UNIT POWER gt POWER WIRING mm Circuit Breaker Fuse A 25 20 Indoor Outdoor Connecting Wiring Weak Electric Signal mm Indoor Outdoor Connecting Wiring Strong Electric Signal mm 18 Accessories 8 Accessories E Soundproof insulation sheath Drainpipe Fittings Wire controller Wire controller oa CN others NO Outdoor Units Part 3 Outdoor Unit
3. 4 jw 2 WAY VALVE ___ _ Condenser temp sensor CAPILIARY TUBE HEAT EXCHANGE EVAPORATOR 1 Room temp T4 Ambient EXCHANGE sensor temp sensor CONDENSER T2 Evaporator temp sensor ERE p GAS SIDE v NY NY 4 WAY VALVE N _ 3 WAY VALVE Accumulator Compressor High pressure switch _ 0 5 Discharge temp sensor Low pressure switch 4 COOLING lt HEATING 23 Wiring Diagrams 4 Wiring Diagrams MUC 48HF2 MUC 60HF2 202075790595 WIRING DIAGRAM OUTDOOR UNIT CODE PART NAME FAN 1702 KM8 AC CONTACTOR PIPE TEMPERATURE SENSOR SH R LIN OR SHORTING STUB TEMPERATURE PROTECT SWITCH OR SHORTING STUB I ALVE REVERSING VALVE RR HEAT ELECTRIC HEATING STRING QQ RJ RJ RJ RJ TRANSFORMER _ TO INDOOR COMM BUS POWER SUPPLY RANS Pee NOTE PLEASE USE 3 CORE SHIELDED WIRE P C BOARD SOCKETS 24 Electric Characteristics 5 Electric Characteristics Model Voltage Min Max MUC 48HF2 380 415V 342V 435V MUC 60HF2 380 415V 342V 435V 25 6 Operation Limits Outdoor temperature Outdoor temperature C DB Operation Limits Cooling operation Heating operation Room temperature OCO 18 C 43 7C 43 C For the models with low temperature cooling system
4. Y If the water pump is normal Yes Y Insertthe EEPROM well No Insert the water level switch well Yes Replace the water level switch No V Replace the water pump Check PCB board or replace the indoor main PCB 41 Troubleshootin f Indoor fan speed has been out of control Eb Shut off the power supply and turn It on 5 seconds later Is it still displaying the error code No The unit operates normally ve Find out the cause and have it solved For E off power supply example check rotate the fan by hand No rer 500651008 ie id blocked or the bearing is broken Yes Check me wires of fan motor Are all the No Correct the connections good va If the Check the fan malfunction is Replace the fan i motor is normal through No motor still existing index 17 replace the 4 4 main PCB No Yes v Replace the Check whether the main PCB is main PCB No p The normal through index 2 NE malfunction is solved Yes 42 Troubleshooting Index 1 1 Indoor DG fan motor control chip is inside fan motor Measure the resistance value of each winding by using the tester II any resistance value is zero
5. s O 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 wire joint with 5 terminal named A B C E in indoor unit and fixing an infrared emitter whose anode and cathode connecting with and 8 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 While installing using Screwdriver or other tools to open the back cover from the inside Back cover of Wire Controller P 4 4 Front cover of Wire Controller F LCD display Wood Mounting Turning cover Screw M4X20 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 connecting wire should be a little longer as to take away the controller easily for maintenance 56 SOLICITE INFORMACI N ADICIONAL Tel fono 93 446 27 80 Fax 93 456 90 32 eMail mundoclima salvadorescoda com ASISTENCIA T CNICA Tel fono 93 652
6. the fan motor must have problems and need to be replaced ANY po 123456 Index2 1 DC fan motor control chip is inside fan motor Power on and when the unit is in standby measure the voltage of pini pin3 pin4 pin3 in fan motor connector If the value of the voltage is not in the range showing in below table the PCB must have problems and need to be replaced ZIN DC motor voltage input and output NO Color Signal _ rea vom 2 2 LN 5 43 Troubleshooting For the super slim cassette with up down panel a Communication error between indoor unit and up down panel b Up down panel is defective FO or F1 Displayed Communication failure between indoor unit and up down panel Or up down panel is defective heck the wire connection between up down panel and indoor unit is it right Correct the connection Ves the up down panel and repower the indoor unit Connect a display board and turn on it can it start The indoor PCB is defective Change it No o Yes gt The up down panel is defec
7. 53 57 Fax 93 635 45 08 57
8. display board gt gt gt The standard indoor unit can be controlled by wired controller There is a display board with a receiver in 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 Dimensions 2 Dimensions Outline dimension and air outlet opening size Unit mm T s Ras mo Fag Paca A m E al Fa is uti Air filter Electric control cabinet a I Je GR Outline Air outlet 0 Air return Size of outline dimension Capacity KBtu dimension mm ing size 6 11 Service Space 3 Service Space Ensure enough space required for installation and maintenance 200mm or more 300mm or more ds ded ded JL 600mmX600mm checking orifice There is enough space for installation and maintenance The ceiling Is horizontal and its structure can endure the weight of the indoor unit The outlet and the inlet are not impeded and the influence of external air is the least The air flow can reach throughout the room
9. only NOTE While the unit is running under Energy saving mode it would be cancelled if press MODE FAN SPEED or ON OFF button 11 TIME OFF For time OFF setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjust the figure to 0 00 will cancel time ON setting 12 LOCK inner located Push this button to lock in all the current settings and the remote controller will not accept any operation except that of the LOCK Use the LOCK mode when you want to prevent settings from being changed accidentally Press the LOCK button again to cancel the LOCK function A lock symbol will appear on the remote controller display when the lock function is activated 13 RESET inner located Once the recessed RESET button is pressed all of the current settings will be cancelled and the controller will return to the initial settings 53 Controller 3 2 Wired Remote Controller 3 2 1 KJR 12B Name and functions of buttons on the wire controller AHAHAHHA if Camo Ceara 9 Cara ADJUST BUTTON A ADJUST BUTTON v SWING BUTTON di ECONOMY BUTTON 13 FAN SPEED BUTTON 3 LOCK BUTTON 1 Mode button When press this button the operation mode change as the following sequence Rab oo COOL DRY HEAT Em je ade eee Remark For the cooling only model t
10. 29 833566 69 170547 109 04860 gt 10 622756 30 797078 70 16469 0476 9 58709 31 76243 71 159068 111 045957 28 563694 729464 72 153668 112 04469 522438 33 698142 73 148481 113 04342 493161 34 668355 74 143498 114 042304 5 46575 35 640021 75 138703 115 041164 440000 36 613059 76 134105 116 04000 415878 37 587359 77 129078 17 038991 398239 38 562961 78 125423 03756 37 1988 39 539689 79 1 21330 119 03694 352024 40 517519 80 117393 120 03592 1 333269 41 496392 81 1 13600 121 03504 __ 2 81565 42 476258 82 1 09958 122 0343 3 299058 43 457050 83 1 06448 123 033246 4 283459 44 438736 84 1 03000 124 03230 gt 5 26878 45 421263 85 099815 125 031559 6 254954 46 404589 86 096681 126 030754 gt 241932 47 388673 87 093660 127 029974 225662 48 373476 88 090753 128 029216 21894 49 358962 89 087950 129 028482 10 207184 50 345097 90 085248 130 0270 gt 1 196891 51 33184 91 082648 131 02708 12 18777 52 319188 92 080132 132 02648 183 17805 53 307075 93 077709 133 025757 gt 14 16934 54 29586 94 0
11. 75373 134 02515 gt 15 161156 5 284421 95 073119 13 02412 16 153418 56 273823 96 070944 136 02396 gt 17 16181 5 263682 97 068844 137 02338 18 139180 58 253973 98 066818 138 022776 19 132631 59 244677 99 064862 139 02221 1 1 WILWIOINININMININININMIT MID M CC I I C N C O gt O gt O gt O gt O gt NI O AIN Er Oo O O NTN TN IN O O O CO IG gt gt I gt T gt gt O ODINIDIOIRIOINI I CC C O CO N O O cO cO N CO N N 5 5 co 49 Controller 3 Controller 3 1 Wireless Remote Controller 3 1 1 RG51Q1 BGE The R51Q1 BGE wireless remote controller is standard for Four way cassette type and the Ceiling amp floor type SET TEMPERATURE C MODE ONIOFF Fan SPEED k SWING ECO TIMER ON O CH SWING reser cm TIMER OFF AIR DIRECTION General Function for wireless remote controller Rated voltage 3 0V 2pieces of LR03 7 batteries Operation condition 5 60 50 Controller Buttons and functions 1 Adjust Decrease the s amp t temp Keeping pressing will decrease the tem
12. MUNDEZCLIMA ON OFF HEAT PUMP Service manual MUC HF2 CL20647 a CL20648 English Content CONTENT Part 1 General Information Q Q T T 1 Part 2 INAOOT uu u uu u u uum anaku Z Susa 5 Part 3 Outdoor UNS gt gt gt gt gt 51 Part CANON RE 59 Part 5 Electrical Control System 85 The specifications designs and information in this book are subject to change without notice for product improvement General Information Part 1 General Information 1 Model MS 4 2 External Appearancoce 5 gt gt gt gt 9 __ 5 UNIS s 5 FO NES 6 Model Lists 1 Model Lists Universal Outdoor unit Model Heat Pump MUC 48 HF2 UE20647 MUC 60 HF2 UE20648 Compressor type Compressor Brand Matched indoor units SCROLL SANYO MUC 48 HF2 UI20647 SCROLL SANYO MUC 48 HF2 UI20648 External Appearance 2 External Appearance 2 1 Indoor Unit 2 2 Outdoor Units Double fan outdoor unit Features 3 Features 4 1 High quality coils The coil is constructed of advanced inner grooved copper tube and aluminum fins 4 2 Anti rust 500 h
13. The connecting pipe and drainpipe could be extracted out easily There is no direct radiation from heater Wiring Diagrams 4 Wiring Diagrams MUC 48HF2 MUC 60HF2 WIRING DIAGRAM INDOOR UNIT 202070790548 RED s FOR DIFFERENT OUTDOOR UNIT FOR SETTING AUTO RESTARI 5 Reactor DRIVER MODLE woe DOUBLE SINGLE auTo RESTART ACTIVE INACTIVE L FACTORY QUANTITIES OF OUTDOOR FAN SETTING 2 CODE DISPLAY TO WIRE cope 0 1 2 Land FLG PRESSURE FACTORYSETTING MAINBOARD FOR SETTING POWER OUTER PIPE TEMP AM AD ENC1 KK BLACK MIDDLE PIPE TEMP V V power ss 71 105 _ 140 130 160 150 178 FACTOR ACCORDING TO RELATED MODEL X Q E P CN5 PT 7 LI c SE DSS DD ADS em wa To CCM orm BUE To outdoor Comm Bus POWER SULLY 13 5 Static Pressure External static pressure Pa Pa 120 110 100 90 80 70 60 50 40 30 20 45 000 48 000Btu h Super high speed High speed Mid speed gt Low speed 2 1000 1300 1600 1900 2200 2500 2800 3100 Air volume m h External static pressure Pa 14 Pa 120 110 100 90 80 70 60 50 40 30 20 10 Static Pressure 51 000 60 000Btu h
14. ars in 3 minutes the drain pump will work as normal state if itis necessary to turn off the pump it will be off in 1 minute delay If the error is still there in 3 minutes the drain pump will be off as well as the AC unit The error can be cleared only when the power of the unit is cut off 35 Troubleshootin 2 Troubleshooting 2 1 Display board 2 1 1 Icon explanation on indoor display board PRE DEF indicator cooling and heating type or fan only indicator cooling only type Timer indicator Alarm indicator Operation lamp Infrared signal receiver Temporary button Display digital tube MANUAL OPERATION TIMER DEF FAN ALARM 36 Troubleshooting 2 2 Self diagnosis Indoor unit s LED indication Malfunction Fanning lamp Communication malfunction between indoor ee and outdoor units 2 Open or short circuit of T1 temperature X sensor Timer lamp Defrosting Alarm Display lamp lamp digital tube E1 O 1 8 2 EE i EN E2 E3 E6 E7 E8 Eb d Open or short circuit of T2 temperature sensor ENLTTI on X off flash at 5Hz LEDs for the indication of outdoor trouble LED3 Yellow LED4 Red X Ollight X off vr flash at 1 X X X X X x 2 Note 1 T3 Outdoor condenser temperature sensor 2 T4 Outdoor ambient t
15. as in the refrigerant 3 Heat exchanger is dirty 4 Possible reason 1 The wires is loose to K1 2 Air or other gas in the refrigerant 3 Heat exchanger is dirty 4 Outdoor motor or fan blade is defective Outdoor unit is in bad ventilation Refrigerant is too much Outdoor fan or fan blade is defective Outdoor unit is in bad ventilation Refrigerant is leakage 47 Troubleshooting e High temperature protection of condenser High temperature protection of condenser Check the resistance of the temp sensor according to Appendix 1 is it normal Possible reason Replace the sensor Air or other gas in the refrigerant Heat exchanger is dirty Outdoor fan or fan blade is defective Outdoor unit is bad ventilation Refrigerant is leakage 48 Troubleshooting Appendix 1 Temperature Sensor Resistance Value Table Kom C o 115266 126431 60 235774 100 062973 19 108146 21 120561 61 227249 101 061148 gt 18 101517 22 11500 62 219073 059386 __ 7 96343 109731 63 211244 103 05768 gt 16 895865 24 104736 64 203732 104 05608 15 842190 25 10000 6 196532 105 05448 214 793110 26 955074 66 1 89627 106 052912 gt 745360 27 912445 67 1 8300 107 05146 __ 12 701698 28 68 176647 108 049989 __ 11 660808
16. door PCB 1 2 4 Over current protection When compressor is running if the current is over twice of the rated for 3 seconds the compressor will stop and an error code will be displayed on the outdoor PCB If the current becomes normal the indoor sends signal to the outdoor the outdoor will display normally 1 2 5 Fan Speed is out of control When Indoor fan speed keeps too low less than 300RPM for 50s the unit will stop and the LED will display the failure 29 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 4 The louver operates same as in cooling mode 5 Auto fan Indoor fan can be set to high med low auto T1 High Medium Low 24 1 3 2 Cooling Mode 1 3 2 1 Compressor running rules Once the compressor starts up it will follow the below rules When indoor room temp I 1 is lower than Ts the compressor and outdoor fan will shut off When T1 is higher than 15 1 the compressor and outdoor fan will start up T1 Ts 1 Ts Off 1 3 2 2 Outdoor fan running rules For double fan outdoor units Fan above The outdoor fan runs all the time Fan below 1 33 On 30 Off 30 Electrical Control Function 1 3 2 3 Indoor fan running rules In cooling mode indoor fa
17. emperature sensor 37 Troubleshooting 2 3 Solving steps for typical malfunction 1 For indoor unit a Communication malfunction between indoor and outdoor units E1 Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes Yes Check if there s any interference Remove interference Such as too many lamps power U Increase the capacity of anti transformers Or the signal wire is interference too long No Y Check whether the signal wire is shield cable or whether the shield No cable earthing cable is earthing Yes V Check whether the wire is correct polarity P to P Q to Q E to E Yes Y Check whether the signal wire is broken No Correct the connection v v Yes Replace the signal wire No Y Check whether the signal wires insert on PCB well Yes Y Replace indoor PCB is the error distinguished No Pull out and insert back v No Y Replace the outdoor PCB 38 Troubleshooting b Open or short circuit of temperature sensor E2 E3 E4 Check the connections between temperature sensor and PCB Are No Correct the connecti
18. he heating mode is skipped 2 Timer on button Press this button timer on function is active Then every press the time increase 0 5h 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 5h 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 5 Electrical heater button If press this button in heat mode electrical heater function become ineffective 6 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 7 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 Controller 8 Adjust button Set 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 star
19. ilter Panel 1 2 Easy Installation Two air inlet styles Bottom side or Rear side gt Air inlet from rear is standard for all capacity air inlet from bottom is optional gt The 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 Easy maintenance gt 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 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 Features Ventilated Panel 1 4 Reserved remote on off and central control ports gt 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 5 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 750mm upmost Features 1 6 Built in
20. ith 1 C per 0 55 3 MODE Once pressing running mode will be selected in the following sequence NOTE No heating mode for cool only type unit 4 VERT SWING Used to stop or start horizontal louver movement The louver will swing up and down automatically if push this button AIR DIRECTION Used to set the desired up down air flow direction The louver changes 6 degree in angle for each press 5 HORIZ SWING Used to stop or start vertical louver movement 6 FAN SPEED MODE Press the Mode and Fan speed button simultaneously for 2 seconds The remote 52 Controller controls into faceplate setting state and the LCD shows F2 Press the to control the faceplate up and press the TEMP DOWN Y to control the faceplate down Press any button to exit the faceplate setting state then the LCD back to the normal display 7 ON OFF For turning on or turning off the air conditioner 8 FAN SPEED Fan speed will be selected in following sequence once pressing this button ao LOW MED HIGH 9 TIME ON For time ON setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjusting the figure to 0 00 will cancel time ON setting 10 ECO Select this function during the sleeping time It can maintain the most comfortable temperature and save energy This function is available on COOL HEAT or AUTO mode
21. machine will go into economy mode 34 Electrical Control Function When cooling the setting temperature rises 1 C 8 lower than 30 C every hour 2 hours later the setting temperature stops rising For heat pump models when they in heating the setting temperature reduces 1 C be higher than 17 C every hour 2 hours later the setting temperature stops reducing 1 3 7 4 In this mode the fan speed is forced into AUTO mode 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 1 3 9 1 Water level check The water lever will be checked every 5 seconds if the feedback signal is abnormal it will be considered as drain water full by the control system 1 3 9 2 Drain pump control If there is no water full error the drain pump will be on when the unit is in cooling mode including auto cooling and forced cooling and dry mode It will be off when the unit is in heating mode fan only mode or off state if the pump is on before the unit is off it will delay 3 minutes to be off If there is a water full error the drain pump will be on when the error occurs Afterwards If the error disappe
22. n runs all the time and the speed can be selected as high medium low and auto The auto fan T1 Ts TN High Medium 1 Low 1 3 2 4 Low evaporator coil temperature T2 protection For Duct T2 TE6 TES When the evaporator coil temp I 2 keeps lower than TE5 for the compressor and outdoor fan will shut off When T2 is higher than TE6 the compressor and outdoor fan will restart up 1 3 2 5 Condenser high temperature T3 protection 13 Off TE12 TE13 When T3 gt TE12 for Time1 the compressor will shut off When I3 lt TE13 the compressor will restart 31 Electrical Control Function 1 3 3 Heating Mode 1 3 3 1 Compressor running rules For Duct amp super slim cassette type Once the compressor starts up it keeps running 7 minutes When indoor room temp T 1 is higher than TgapO the compressor and outdoor fan will shut off When 1 is lower than TgapO 1 the compressor and outdoor fan will start up T1 TS TgapO TgapO 1 On 1 3 3 2 Outdoor fan running rules Fan below The outdoor fan runs all the time Fan above T4 18 Off 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 T1 Ts Low 3 Medium 1 High 32 Electrical Co
23. ng temperature is modified the machine will choose running function again 1 3 5 Drying mode 1 3 5 1 The indoor fan will keep running at low speed 1 3 5 2 All protections are active and the same as that in cooling mode 1 3 5 3 The louver operates the same as in cooling mode 1 3 6 Timer function 1 3 6 1 Timing range is 24 hours 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 on 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 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 off 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 is relative time 1 3 7 Economy function 1 3 7 1 It is valid in cooling heating and auto mode 1 3 7 2 Turning off changing mode or setting fan speed will cancel economy function 1 3 7 3 Operation process in sleep mode is as follow After pressing ECONOMIC or SLEEP button on the controller the
24. ntrol Function 1 3 3 4 Defrosting mode e Condition of defrosting AC will enter defrosting mode if any of the following items is satisfied A T3 lt TE19 and the compressor keeps running over 45 minutes Meanwhile T3 lt TE17 for 3minutes B After the last defrosting the time that the outdoor fan is off but the compressor is on in high T2 protection cumulates up to 90 minutes e Condition of ending defrosting If any one of the following items is satisfied the defrosting will terminate and the machine will turn to normal heating mode A T3 rises to be higher than TE18 B The machine has run for 10 minutes in defrosting C Turn to other modes or off e Defrosting action Setting defrosting time 458 458 1 3 3 5 High evaporator coil temp T2 protection Compressor off Outdoor fan off TE9 Compressor on Outdoor f TE8 TE10 Compressor on Outdo 33 Electrical Control Function 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 11 15 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 I1 I5 If the setti
25. ons Y the connections good Yes Y Check the resistance value of the sensor via Appendix 1 Yes Replace indoor or outdoor PCB No v Replace the sensor 39 Troubleshooting c Outdoor unit malfunction E6 Outdoor unit malfunction Whether the outdoor main board has error Yes p Refer to corresponding solving steps display No V Whether the outdoor unit is power on Yes Check whether the communication wire between the indoor and NO No Check whether the power is on Connect the wiring well or replace the communication wire outdoor unit is connected correctly Yes v Replace outdoor main board Check if the errors happen again NO Yes Y Y Replace the indoor PCB Trouble is solved 40 Troubleshooting d Indoor EEPROM malfunction E7 Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes II 8 EEPROM chip is welded on PCB replace the PCB directly Otherwise No check whether the EEPROM chip plugged in PCB well Yes y Replace the indoor PCB e Full water malfunction E8 If the water level switch is inserted well Yes Y If the water level switch is broken No
26. ours salt spray test 4 3 Low operation sound level Well known stable and quiet running fan motor 4 4 Well known compressor 4 5 Compact design Smaller dimension and larger stuffing capacity 4 6 Universal outdoor unit design 4 7 Optional air outlet grille plastic type and wire type N NN NN NN WS QV SN QW W SS lt S SN M MS Z Ka s CET E ml s _ P Ex m em Ga 7 M NAN NS SSS Lo Ec 7 UY ify WQ Yj x 7 Yj f Wire type Plastic type Plastic type 4 8 Optional low temperature cooling module 4 9 R410A environment friendly refrigerant Duct Type Duct Type Features sner 7 2 DIMENSIONS LL III 11 SE 503668 PRE 12 4 13 5 latie PreSSUlG u u u uuu l u x uuu uuu suu 14 5 Electri CharaceristiCS u uuu uu u u u uuu uu uu uuu u u 15 TASOUNG Levels ae 16 0 AGCOSSOLIOS 17 9 The Specification uuu u u seen cate lu oim do ERE 18 TO Field WIIG REI IE TNT 19 Features 1 Features 1 1 Installation accessories Optional gt Front Board Canvas Air Passage Filter Panel for easy installation Front Board Canvas Air Passage F
27. p with 1 C 0 58 2 Adjust Increase the set temp Keeping pressing will increase the temp with 1 C per 0 58 3 MODE Once pressing running mode will be selected in the following sequence KROM DRE epee ener NOTE No heating mode for cool only type unit 4 VERT SWING Used to stop or start horizontal louver movement or 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 6 AIR DIRECTION Used to set the desired up down air flow direction The louver changes 6 degree in angle for each press 7 ON OFF For turning on or turning off the air conditioner 8 FAN SPEED Fan speed will be selected in following sequence once pressing this button B LOW MED HIGH 9 TIME ON For time ON setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjusting the figure to 0 00 will cancel time ON setting 10 ECO Activate or turn off economic operation mode It is suggested to turn on this function when sleeping Only available when remote controller is used with corresponding unit 11 TIME OFF For time OFF setting Once pressing this button the time will increase by 0 5 hour When the set time exceed
28. s DIMENS TONNS ee 21 SPACE vr 22 PIDING DIA QKAINS 23 SWNG Diagrams uuu uuu unun unusapa 24 Electric CharacteriS UGS sciri 25 6 26 ne 27 20 Dimensions 1 Dimensions Unit mm Model Unit mm TTS RU MUC 48HF2 938 634 404 448 370 392 1369 MUC 60HF2 21 Service Space 2 Service Space Wall or obstacle Air inlet More than 30cm More than 60cm More than 30cm S Maintain channel Va More than a More than 200cm 22 Piping Diagrams 3 Piping Diagrams MUC 48HF2 MUC 60HF2 4 CHECK VALVE LIQUID SIDE Heating Model only
29. s 10 hours pressing the button will increase the time by 1 hour Adjust the figure to 0 00 will cancel time ON setting 12 C H inner located Press this button with a needle of 1mm to shift the mode between Cooling only and Cooling amp Heating according to the feature of the machine 13 RESET inner located Press this button with a needle of 1mm to cancel the current setting and reset remote controller 51 Controller 3 1 2 RG51C E Remote Controller Specifications Model RG51C E Rated Voltage 3 0V Lowest Voltage of CPU Emitting Signal 2 0V Reaching Distance 8m when using 3 0 voltage it can get 11m Environment Temperature Range 5 C 60 Introduction of Function Buttons Remote Controller a gt SET TEMPERATURE 0 AUTO FAN COOL HIGH DRY MED HE AT LOW ADJUST A N T TO IFE 7 C ON OFF MODE FAN SPEED Mode seting or 8 Fan speedse ting SWING ECO TIMER ON TIMER ON C 9 C DCH on SWING HMEROFF 10 qeratbn DT OGO 2 i CO TIMER OFF DIRECTION 42 tek 13 C Reset _ 1 Adjust Decrease the s amp temp Keeping pressing will decrease the temp with 1C per 0 58 2 Adjust Increase the set temp Keeping pressing will increase the temp w
30. t 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 ec as follow A NU A f C 7 M E 1 T AE V u dn HO 1 1 gt QI Byg lt Su HP Lock button hidden When you push the LOCK button all current 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 1 Operation mode indication 4 Op Follow me function IT IL Lin lt lt i i is J AUTO CO COOL Di DRY HE HEAT FAN FAN ONLY Ax xc af E5 lt gt DET TEMP ini ini amp PAN pu Fan speed indication H TIMER ON OFF wama TT II a Lock 7 Temperature display zone Timer ON OFF 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 gt Heat gt Fan only gt Auto For cooling only model heat mode is skipped 2 Timer When adjust setting on time or onl
31. tive Change it Problem is solved 44 Troubleshooting c Up down panel is not closed F2 Displayed p The up down panel is not closed Check if the filter panel of up down panel is closed Ves Y The up down panel is defective Change it Problem is solved No gt Lift the filter panel to close it 45 Troubleshooting 2 For the outdoor unit a Phase sequence error Phase sequence error Change the order of two of the wires to power supply Switch on the unit again If the problem cannot be solved the outdoor PCB is defective b Lack of phase Lack of phase Check the power supply is it 3 phase 380 415V Yes Check the connection between power supply and terminal is the voltage in outdoor terminal is 3 phase 380 415V Yes Outdoor PCB is defective 46 Troubleshooting c Overload of current Overload of current Check the current normally Is the current in rated range No Yes Possible reason The outdoor PCB is defective ET The compressor is defective 2 3 Refrigerant is over charged 4 Air enter the refrigerant system d Protection of pressure or temp Protection of pressure or temp Yes Is it K1 or K2 open Is temp protective switch K1 close Is pressure protective switch K2 close Yes Yes Possible reason 1 The wires is loose to K2 2 Airor other g
32. y 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 are both lighted 3 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 4 ON OFF indication When it is on the icon display otherwise it is extinguished 5 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 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 buttonAand in fan mode no display here Remark 55 Controller The wired controller will reset to factory setting with auto mode auto fan and 24 C 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 Wire Joint 5p len
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