Service Manual
Contents
1. ENC1 SWITCH FOR POWER NUMBER WER Y G WHITE 4 5 E 5600W 9 000W INDOOR POWER OUTPUT B 5 1 05008 NOT PL EASE USE SHI ELDER WI RE FCR BUS WIRE i 14000W REMOTE 9 16000 CONTROL TO COM TO OUTDOOR CO MM BUS COMM BUS 24 Duct Type MLCAC UTSM 2010 10 Static Pressure 5 Static Pressure MTB 36HWDN1 MTB 48HWDN1 Pa cene 120 S 90 N 80 TH 90 5 70 Re rete 2 99 N Re Super high speed 60 N lt gt 524221 High speed amp 70 nd pr N High speed esse 5 50 ers 2 50 JN 5 1 d x Mid speed Mid speed N 40 50 P Low speed N N 1 wd X N 30 N Low speed 5 X 40 p 20 TN 7 30 10 20 10 1100 1200 1400 1600 1800 2000 2200 2400 Air volume m h 1000 1300 1600 1900 2200 2500 2800 3100 Air volume m 6 Electric Characteristics PowerSuppy Voltage Mm Max ma2. WA a 32 2 DIMENSIONS eec 56 uuu uuu aa tt 58 Wiring DIagrapis side u 59 5 Air Velocity and Temperature Distributions 60 6 Electric Characteristics 62 DOUG ECV CIS T 62 ACCESSOS aia ia tcn 63 9 The Specification of 64 FIeiId WINO NE EET 65 31 Features MLCAC UTSM 2010 10 1 Features 1 1 New design more modern and elegant appearance x f f AMI WWW An Ih MH 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 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 Water proof by utilizing the absorbing plastic film on
3. 128 TER PIPE TEMP 12 PEPE TEMP EMC SN x 4 PPP MAIN CONTROL BOARD E MM CAO LET _ ADDRESS NET E SE Ofer KS EE DISPLAY 33 R T WIRE LER WIRING DIAGRAM Ta CCM OUTOU BUS COMM BUS NOTE PLEASE USE SHIELDED MIRE 59 Air Velocity and Temperature Distributions MLCAC UTSM 2010 10 5 Air Velocity and Temperature Distributions Discharge angle 60 CEILING Airflow velocity 9 0 5m sec E Condenser Evaporator IND Electronic lt Garidens expansion sen High pressure switch lt m lt lt gt HT E 4 F T Room temp sensor T5 Discharge tel sensor separator mbient temp sensor valve Filter N N Bie return 5 SCapillary 5 gs Fitter pressure Low accumulator Outdoor unit Indoor unit 60 Ceiling amp Floor Type MLCAC UTSM 2010 10 Discharge angle 60 FLOOR Airflow velocity Air Velocity and Temperature Distributions gt m B E c Om 1m D Temperature aaa D gt B e we gt WA WA Om Om Im es Ceiling amp Floor Ty
4. 22008 72008 1 s SEP 6 aop EEE op 5 HE ATI GHP HEAT F HEAT F E E E E E aa pues gt X X io I TO MIRE X55 AGAR nL X55 EPS GONTROLLE 14 CHE SNI 2 5 MAIN CONTROL BOARD CCM COMM BUS T OUTDOOR COMM BUS NOTE PLEASE USE e c SHIELDED WIRE M IINE 13 Air Velocity and Temperature Distributions 5 Air Velocity and Temperature Distributions Airflow velocity MLCAC UTSM 2010 10 ee 1m 14 V Electronic Gor denser temp sensor expansion valve dor 2 Filter 4 way valve KA OQ 000 Capllay Filter Roomtemp sensor 3 Lowpressure liquid accumdator Outdoor unit Indoor unit Four way Cassette Type MLCAC UTSM 2010 10 Electric Characteristics 6 Electric Characteristics Power Model Indoor Unit Supply Hz Voltage Min Max _ MCC 36HRDN1 50 220 240 198 254 198 254 MFA Max
5. Fresh Air Intake Lean over 1 50 8 Four way Cassette Type MLCAC UTSM 2010 10 Features 8 Different color panels for choose White Gray Blue Black White Gray optional Blue optional Black optional 9 Swing angle of louver 1 Add more swing motor one motor driving two louvers Controlling the interspace of each part minimizing the angle loss 2 The swing angle of the first louver are 40 42 degrees and the second louver are 37 38 degrees New evaporator and inner configuration designed can acquire high heat exchanger effect WM 10 More strengthening rib design around the panel preventing the distortion for the panel 11 New outlet frame design to make the phenomena of coagulation great improvement prevent the condensing water from damaging the air guide strip 12 Adding rib on the panel of fan outlet which can avoid the air outlet direct flow to people Adding Rib 13 4 speeds available optional super high fan speed design suitable for the large building over 3m high 52 gt 14 Adding digital tube displaying on the display board LED can display the Error Code to make the malfunction checking easier Four way Cassette Type 9 Features MLCAC UTSM 2010 10 15 Reserve spaces for air side outlet it is available to connect duct pipe hence air supplying from the four sides to nearby small room For duct connecting 16 The connecting pipe
6. WIRING DIAGRAM OUTDOOR UNIT i EECCA i ___02 1PHasERECTIFIER FAN CRANKCASE HEATING ccunnENrperEcron L KM i H PRO CONDE TEMPERATURE SENSOR DUTDOOR AMBIENT TEMPERATURE SENSOR COMP DISCHARGE aa WESANA SENSOR FERRITE BEAD xn 4 WAY TERMINAL 3 WAY TERMINAL GRE CAE Hwa lex Ta a mu Ta zb LEN ae a n KAE LA rad AT NUM xe XM XS MN TO INDOOR COMM BUS PLEASE USE POWER SUPPLY T2 Outdoor Units MLCAC UTSM 2010 10 Electric Characteristics 5 Electric Characteristics Outdoor Unit Power ru Remark MFA Max Fuse Amps A Outdoor Units T3 Operation Limits 6 Operation Limits 74 Ambient temp a cooling Indoor Temperature 17 WB Outdoor temperature WB 20 24 20 15 10 10 15 MLCAC UTSM 2010 10 Heating STD 10 1517 20 25 30 Indoor temperature DB 35 Outdoor Units MLCAC UTSM 2010 10 Sound Levels 7 Sound Levels Outdoor unit Microphone Noise level dB A Model MOUB 36HDN1 Q 57 52 MOUB 36HDN1 R 55 50 MOU 48HDN1 59 54
7. sk hi am 50Hz R410A DC Inverter Service Manual 2011 Strategic Products and Services MLCAC UTSM 2010 10 Contents Part 1 General Information 1 Part 2 uu u u ul aaa u anak Aah a aa aa aa aaa aa aa aaa 6 2 l daa a 67 meen UE Le Ioue evene vere uwen UD Ae Ia ode Te 96 PACIGON Hemmer ne errr ne ern a a eee ee eee 107 The specifications designs and information in this book are subject to change without notice for product improvement Contents i MLCAC UTSM 2010 10 General Information Part 1 General Information 1 Model Names of Indoor Outdoor Units 2 2 External Appearances 3 2 4ndoor UNS ativan raa Ets da M TEE UM NG EE PME M E IEEE 3 2 2 OUIGOOR UNS ien ene Qua 3 uu uuu ux au uu a DEM CUPIS 4 4 FOI OS u uuu a 5 General Information 1 Model Names of Indoor Outdoor Units MLCAC UTSM 2010 10 Model Names of Indoor Outdoor Units 1 1 Indoor Units R410A capacity multiplied by 1000Btu h Cooling and heating Ceiling amp
8. MOUB 48HDN1 R 59 54 Outdoor Units TB Troubleshooting MLCAC UTSM 2010 10 8 Troubleshooting 8 1 Indoor unit malfunction 8 1 1 Display board Ceiling amp Floor Normal 4 way cassette Operation lamp OPERATION D D temporary button timer indicator frost indicator Timer indicator TIMER DEF FAN indicator cooling and heating pe ALARN or fan only indicator cooling only type Alarm indicator Temporary button operation lamp info window alarm indicator Infrared signal receiver infrared signal receiver Duct PRE DEF Indicator cooling and heating type Temporary button or fan only indicator cooling only type h Infrared signal receiver Display Digital tube Operation lamp Timer indicator 7 Alarm indicator Display panel 76 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting running lamp timer lamp defrosting lamp alarm lam In outdoor unit communication LED2 checking channel is abnormal Quick flash Hoom temperature sensor LED1 2 checking channel is abnormal Quick flash Pipe temperature sensor 12 checking channel is abnormall Quick flash 8 1 2 Troubleshooting For Normal 4 way cassette Pipe temperature sensor T2B LED1 checking channel is abnormal Quick flash Water level alarm malfunction malfunction LEDA Slow flash LED3 Collision model malfunction Quick flash For ceiling amp floor Malfunctio
9. 220 240V 50Hz 1 phase Ean Communication Bus Outdoor For model 36 60 with 3 Phase outdoor unit CENTRAL CONTROL MONITOR CCM Circuit breaker Power wiring indoor CENTRAL CONTROL MONITOR CCM MLCAC UTSM 2010 10 Power supply 220 240V 50Hz OR 220V 60Hz 1 phase E Circuit breaker Power wiring outdoor COMPUTER Power supply 380 415V 50Hz 3 phase 4 Circuit breaker Power wiring outdoor COMPUTER Four way Cassette Type MLCAC UTSM 2010 10 Field Wiring INDOOR UNIT INDOOR UNIT EEF Power Supply Acme shidded cable to 1 Phase 220 240V 50 3 0 5 3 core cable 1 0 Power Supply 1 Fhase 220 240N 50Hz 3 core cable 3x1 0 mm ar 3 shidded cable 3x0 5 mm 3 shidded cable 3x0 5 mm Fower Supply 3 Phase 380 415V 50Hz 5 core cable 5x2 5 mm Power Supply 1 Phase 220 240V 50Hz 3 core cable 3x4 0mm OUTDOOR UNIT OUTDOOR UNIT For model 36 48 with 1 Phase outdoor unit For model 36 60 with 3 Phase outdoor unit Four way Cassette Type 19 Duct Type 20 MLCAC UTSM 2010 10 Duct Iype 1 u RR 21 2 DIMENSIONS eee 22 9 SPACE orm entente 23 4 Wiring Diagram s 24 9 tatie 25 6 Electric Characteristics
10. MLCAC UTSM 2010 10 10 Field Wiring Duct Type Power supply 220 240 50Hz 1 phase E Circuit breaker Power wiring indoor For Model 18 60 with 1 Phase outdoor unit Power supply 220 240 50Hz 1 phase E Circuit breaker Power wiring indoor Indoor Unit For Model36 60 with 3 Phase outdoor unit Communication Bus Communication Bus CENTRAL CONTROL MONITOR CCM Field Wiring Power supply 220 240V 50Hz 1 phase 4 Circuit breaker Power wiring outdoor COMPUTER Power supply 380 415V 50Hz 3 phase E Circuit breaker Power wiring outdoor COMPUTER 29 Field Wiring MLCAC UTSM 2010 10 Air conditioner link circuit INDOOR UNIT il Power Supply 2 shidded cable to CCM hase 220 24N 1 3x0 5 mm J core shielded cable 3 core cable 3x1 0 m Power Supply 1 220 240 7 3 cable 3 x4 Omm OUTDOOR UNIT For Model 30 60 with 1 Phase outdoor unit INDOOR UNIT Power Supply 3 core shidded cable to CCM 1 Phase 220 24N 3x0 5 mm 3 core shielded cable 3 cable 3x1 0 mm 3x0 5 mm Power Supply 3 Phase 380 415V 6 cable 5x2 5 mi For Model36 60 with 3 Phase outdoor unit 30 Duct Type MLCAC UTSM 2010 10 Ceiling amp Floor Type Ceiling amp Floor Type Ceiling amp Floor Type Te FEITOS
11. Oil return Filter Condenser 4 Condenser temp sensor High pressure switch T T5 fa Discharge temp sensor separator Ambient temp sensor J N 4 way valve NG Q Capillary Filter Evaporator c Ts 5222 Evaporator temp sensor Room temp sensor Capillary 9 Filter Low Low pressure liguid Switch accumulator Outdoor unit 70 Indoor unit Outdoor Units MLCAC UTSM 2010 10 Wiring Diagrams 4 Wiring Diagrams MOUB 36HDN1 Q MOU 48HDN1 mo D VALVE LOW PRESSURE SWITCH AC CONTACTOR DE owe VE A REY atr AR eA TO INDOOR COMM BUS WHITE 2000755 ODE PARTNAME 02075590471 CAPS 450VACCAPACITOR D2 CRANKCASE HEATING ld L REACTOR AC cONTACTOR mu RESISTANCE s awane CONDENSER TEMPERATURE SENSOR i OUTDOOR AMBIENT TEMPERATURE SENSOR T COMP DISCHARGE TEMPERATURE SENSOR ECH FERRITE BEAD _ AAWAY TERMINAL TERMINAL TO INDOOR COMM BUS MOTE PLEASE LSE SHIRE SHIELDED WIRE POWER SUPPLY Outdoor Units 71 Wiring Diagrams MLCAC UTSM 2010 10 MOUB 48HDN1 R
12. Wiring Diagram s 71 Electric Characteristics 73 Operation Limits 74 SOUNA en 75 uuu u AE TAA A DANANG KANGA AA A 76 67 Dimensions MLCAC UTSM 2010 10 1 Dimensions e a i p L k TTL nn mE GENER Unit mm wo TA 8 p E F rn 60 we s xe 30 9 eo 60 30 145 eo coo se 68 Outdoor Units MLCAC UTSM 2010 10 Service Space 2 Service Space Obstacle Fix with boli Deep foundation Maintain channel gt 60 P M 7 Air outlet Outdoor Units 69 MLCAC UTSM 2010 10 Piping Diagrams 3 Piping Diagrams MOUB 36HDN1 Q MOU 48HDN1 MOUB 36HDN1 R MOUB 48HDN1 R Electronic expansion valve X Filte N N V P
13. 5 ON OFF For turning on or turning off the air conditioner 6 AIR DIRECTION Activate swing function of air deflector Once pressing air deflector will turn 6 For normal operation and better cooling and heating effect deflector will not turn to the degree which is the state of deflector when the unit is turned off Only available when remote controller is used with corresponding unit 7 HORIZ SWING Activate or turn off horizontal swing function Only available when remote controller is used with corresponding unit i e Ceiling amp floor type 8 VERT SWING Activate or turn off vertical swing function Only available when remote controller is used with corresponding unit 9 CLOCK Display the current time 12 00 is displayed when resetting or electrifying for the first time Press CLOCK for 5s icon indicating hour will flash with 0 5s Press it again icon indicating minute will flash with 0 5s Y and are used to adjust the figure Setting or modification is effective only by pressing button to make confirmation 10 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 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 incre
14. floor Cooling and heating 1 2 Outdoor Units Model of outdoor unit and corresponding indoor unit Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units MOUB 36HDN1 Q Rotary DC Inverter GUANGZHOU MITSUBISHI MTB 36HWDN1 MUB 36HRDN1 MOUB 36HDN1 R Rotary DC Inverter GUANGZHOU MITSUBISHI MCC 36HRDN1 MOU 48HDN1 Rotary DC Inverter GUANGZHOU MITSUBISHI MTB 48HWDN1 MUB 48HRDN1 MOUB 48HDN1 R Rotary DC Inverter GUANGZHOU MITSUBISHI MCC 48HRDN1 2 General Information MLCAC UTSM 2010 10 External Appearance External Appearance 2 1 Indoor Units Ceiling amp Floor Four way Cassette 2 2 Outdoor Units MOUB 36HDN1 Q MOU 48HDN1 MOUB 48HDN1 R MOUB 36HDN1 R General Information 3 Nomenclature Nomenclature 1 1 Indoor Unit MUB 18HR D N1 3 2 Outdoor Unit MOUD 60HDN1 R MLCAC UTSM 2010 10 Refrigerant Type N1 R410A DC Inverter Control Mode R Remote Control Function Code C cooling Only H cooling amp Heating Capacity i 000Btu h Product Series A First Time Design B Second Time Design C Third Time Design Product Category C Cassette Type F Console Type T Duct Type U Ceiling amp Floor Type H High Static Pressure Duct Type Midea Power Supply R 380 415V 50Hz 220 240 IN 50Hz Refrigerant 1 R410A DC Inverter Function Code C coolin
15. sensor is wrong Yes refer to the Annex 1 Replace condenser temp sensor No Judge 2 Outdoor ambient temp sensor T4 is malfunction Yes Check whether the wiring of the outdoor ambient temperature sensor T4 is broken off Connect the wiring well Check whether the resistance of outdoor ambient temperature sensor Yes T4 is wrong refer to the Annex 1 Replace outdoor ambient temperature sensor 14 86 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting 6 E5 malfunction E5 display Voltage protection of compressor Check the voltage of outdoor unit power supply whether the voltage No Check the power suppl between L 1 and N is about 172 265V p pply Yes Yes Replace the power board then check whether the system can run normally No Replace outdoor main board 7 E6 malfunction Only for 30K 36K amp 48K with 1 phase E6 display PFC module protection Check whether the connecting line between main No board and the PFC module is connected tightly Connect it tightly check normal or not No Yes Check whether the voltage between P 455 of IPM module is 380 390 Replace the outdoor main board No Replace the PFC module Outdoor Units 87 Troubleshooting MLCAC UTSM 2010 10 8 P1 malfunction P1 display High pressure protection Judge 1 Whether the wiring between the high pressure switch and main NG control board is connected well or
16. 25 Ti Sound a GAN aa beest 26 PACCESSONICS uisi iine 27 9 The Specification of 28 WINO osea aaa aa a 29 Duct Type MLCAC UTSM 2010 10 Features 1 Features e New structure design e Built in drainage pump Optical e Two air intake ways from below or rear standard Air intake from below Air intake from back e Wire controller is standard e Three speeds indoor unit e Fresh air inlet hole is reserved Duct Type 21 Dimensions MLCAC UTSM 2010 10 2 Dimensions Outline dimension and air outlet opening size Unit mm tat okan ca e Da d es h D aaa aaa Air filter Air filter Electric control cabinet Electric control cabinet Outline Air outlet o Air return Size of outline dimension mounted Capacity mensem pening si size gt size plug KBtu 22 Duct Type MLCAC UTSM 2010 10 Service Space 3 Service Space Ensure enough space required for installation and maintenance 200mm or more 300mm or more lt 600mmA600mm checking All the indoor units reserve the hole to joint the fresh air pipe The hole size as following Duct joint for new air duct Duct Type 23 Wiring Diagrams MLCAC UTSM 2010 10 4 Wiring Diagrams MTB 36HWDN1 MTB 48HWDN1 202
17. Cassette 7 Bil e 20 Ceiling amp Floor Type 31 Indoor Units MLCAC UTSM 2010 10 Four way Cassette Type Four way Cassette Type Indie 8 2 DIMENSIONS arten a a a 11 9 eI SPACE rammen nenten 12 4 Wiring Diagram s 13 5 Air Velocity and Temperature Distributions 14 6 Electric Characteristics 15 Ti Sound LOVGIS T 15 PACCCSSONICS uisi iine ivi muU Ense eoe ToS Bag A E 16 9 The Specification of 17 2 18 Four way Cassette Type 7 Features MLCAC UTSM 2010 10 1 Features 1 Low operation noise Streamline plate ensures quietness Creates natural and comfortable environment 2 Efficient cooling Equal fast and wide range cooling 3 Excellent performance The optimal evaporator amp sufficient airflow volume guarantees the excellent capacity 4 The adoption of the most advanced 3 Dimensional Screw fan Reduces the air resistance passing through Smoothes the air flow Makes air speed distribution to the heat exchange uniform 3 Dimensional Screw Fan 5 Fresh air makes life healthier and more comfortable
18. Fuse Amps 7 Sound Levels FOUR WAY CASSETTE TYPE 1 4 m gt Microphone Noise level dB A Model MCC 36HRDN1 MCC 48HRDN1 Four way Cassette Type 15 Accessories MLCAC UTSM 2010 10 8 Accessories INSTALLATION FITTINGS Installation paper board Tubing amp Fittings Connecting pipe group 000 pipe group Out let pipe clasp Drain joint Drainpipe Fittings Remote controller amp Frame Remote controller amp screw ST2 9x10 C H nana ENT Installation accessory Expansible hook mn The product you have L might not be provided the Installation hook hook following accessories 16 Four way Cassette Type MLCAC UTSM 2010 10 The Specification of Power 9 The Specification of Power with 1 PHASE OUTDOOR UNIT PHA OOR UNIT wih 3 PHASE OUTDOOR UNIT PHASE 1 PHASE 1 PHASE 1 PHASE INDOOR UNIT POWER POWER WIRING 3X1 0 3X1 0 3X1 0 PHASE 1 PHASE 1 PHASE 3 PHASE OUTDOOR UNIT POWER POWER WIRING iiia CIRCUIT BREAKER A INDOOR OUTDOOR CONNECTION WIRING WEAK ELECTRIC SIGNAL mm INDOOR OUTDOOR CONNECTION WIRING STRANG ELECTRIC SIGNAL mm Four way Cassette Type 17 Field Wiring 10 Field Wiring Wiring chart 18 Power supply 220 240V 50Hz 220V 60Hz 1 phase E Ko 0 Circuit breaker Power wiring indoor Communication Bus Outdoor For model 18 48 with 1 Phase outdoor unit Power supply
19. correctly Connect it well Yes Judge 2 Whether the high pressure switch is broken Yes Method Short connect the high pressure switch socket check Replace high pressure switch whether the system can run normally No Check whether the refrigerant system is ok Yes Judge 3 Check whether the outdoor ambient temperature is too high Stop the unit No Yes Judge 4 Check whether the outdoor unit is bad ventilation MAS ESTO OO O Yes N Judge 5 Check whether the heat exchanger is dirty Clean the heat exchanger N O Yes Let the refrigerant out then use the high pressure me nitrogen or refrigerant to blow pipe vacuumize and Judge 6 Check whether the refrigerant pipe is blocked charge the refrigerant again NO Replace outdoor main board 88 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting 9 P2 malfunction P2 display Low pressure protection Judge 1 The wiring between the low pressure switch and main control No board is connected well or correctly Connectitwel Yes Judge 2 Whether the low pressure switch is broken Method Short connect the low pressure switch socket check Yes whether the system can run normally Replace low pressure switch No Check whether the refrigerant system is ok Yes Judge 3 Check whether the outdoor ambient temperature is too low Stop the unit No Judoe 4 The refrigerant of the system is leakage Leak hunting Charge nitrogen or refrigerant to the s
20. dry Common vacuum dry procedure 98 Vacuum for the first time connect the all purpose detector to the inlet of liquid pipe and gas pipe and run the vacuum pump more than two hours the vacuum pump should be below 755mmHg If the pump can t achieve below 55mmHg after pumping 2 hours moisture or leakage point will still exist in the pipe At this time it should be pumped 1 hour more If the pump can t achieve 55mmHg after pumping hours please check if there are some leakage points Vacuum placement test place 1 hour when it achieves 55mmHg pass if the vacuum watch shows no rising If it rises it shows there s moisture or leakage point Vacuuming from liquid pipe and gas pipe at the same time Sketch map of common vacuum dry procedure SSure Add pr Vacuum Vacuum dry Ceno Add refrierant Vacuum laying test hd Installation MLCAC UTSM 2010 10 Vacuum Dry and Leakage Checking Special vacuum dry procedure This vacuum dry method is used in the following conditions e There s moisture when flushing the refrigerant pipe e e Rainwater may enter into the pipe Vacuum dry for the first time 2h pumping Vacuum destroy for the second time Fill nitrogen to 0 5Kgf cm Because nitrogen is for drying gas it has vacuum drying effect during vacuum destroy But if the moisture is too much this method can t dry thoroughly So please pay more attention to
21. to do no damage to the tubing 3 Connect the pipes 4 Then open the stem of stop values of the outdoor unit to make the refrigerant pipe connecting the indoor unit with the outdoor unit in fluent flow 5 Be sure of no leakage by checking it with leak detector or soap water 6 Cover the joint of the connecting pipe to the indoor unit with the soundproof insulating sheath fittings and bind it well with the tapes to prevent leakage Installation 97 Vacuum Dry and Leakage Checking MLCAC UTSM 2010 10 2 Vacuum Dry and Leakage Checking 1 2 Vacuum Dry use vacuum pump to change the moisture liquid into steam gas in the pipe and discharge it out of the pipe to make the pipe dry Under one atmospheric pressure the boiling point of water steam temperature is 100 Use vacuum pump to make the pressure in the pipe near vacuum state the boiling point of water falls relatively When it falls under outdoor temperature the moisture in the pipe will be vaporized c 16C ils 24 4 1 T 4 7 700 _710 4 Necessary gt 724 vacuum r degree 748 7 5 J rfreeze DAL Temp 20 10 0 10 20 30 40 50 60 70 There are two methods of vacuum dry due to different construction environment common vacuum dry special vacuum
22. 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 outdoor 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 3 According to the user s requirement install the remote controller when the remote controller s signal can reach the indoor unit smoothly 4 Test operation Set the air conditioner under the mode of COOLING with the 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 Outdoor unit e Whether there is vibration or abnormal noise during operation e Whether the generated wind noise or condensed of by the air conditioner have influenced your neighborhood e Whether any of the refrigerant is leaked 106 Installation MLCAC UTSM 2010 10 Control 1 Controller Control Part 5 Control 107 Controller 1 Controller 1 1 R05 BG
23. water collector 1 6 Easy operation Auto restart function remote control and optional wire control method 1 7 Low noise level plus compact size Shape of the blades has been improved to prevent noise caused by turbulence 32 Ceiling amp Floor Type Dimensions MLCAC UTSM 2010 10 2 Dimensions a Wall mounting installation A D Connecting point of refrigerant pipe E Connecting point of refrigerant pipe E Liquid side b Ceiling installation Hanging arm 56 Ceiling amp Floor Type MLCAC UTSM 2010 10 Dimensions D Connecting point of refrigerant pipe De as side E Connecting point of refrigerant pipe E Liquid side 2 T JES ammi gt point Capacity Btu h amp p 9 60 306 795 mes 20 23 __ 3670 60 Ceiling amp Floor Type of Service Space MLCAC UTSM 2010 10 3 Service Space gt 35mm 58 Ceiling 8 Floor MLCAC UTSM 2010 10 4 Wiring Diagrams MUB 36HRDN1 MUB 48HRDN1 Ceiling amp Floor Type INDOOR UNIT POWER 202044690039 oe l Al cf tha and HANT M tha s tta dram Wiring Diagrams MOTOR FAM MOTOS CAPACITOR pi mM m TC ROOM
24. 07 0390385 DISPLAY BoARD s CODE TITLE MOTOR DM PUMP MOTOR CN11 CN1 0 CS LEVEL SWI TCH CN9 H P2 HIGH FAN T SUPER HI GH lins a ROOM TEMP CN 1 S3 ENC1 sw ENC2 1 52 T2B OUTER PIPE TEMP T2 MIDDLE PIPE TEMP XP 1 4 XS1 4 CONNECT ORS N TR TRAN SFOR MER MA N BOARD BLACK CN13 oea SW1 FOR INDOOR UNIT CN5 Sk SWITCH x CN2 O F of the and 0N 0FF P3 P2 of the Swi mean the addresses XS1 CH H CN4 CN33 of the different units respective ly XP1 CN1 7 CN7 FUNCTION OF SWITCH qas FOR CCM UNIT ADDRESS BROWN O F of the 52 and ON OFF BLACK BLACK BLACK of the S1 mean the addresses gt gt XP4 XS4 of the different net units Y G CN4 CN2 NYOFF
25. E The R05 BGE wireless remote controller is for Four way cassette type and the Ceiling amp floor type setting Adjust Y 3 AUTO DRY fy HEAT 27 FAN 2 ON OFF 6 Horizswing 7 N swing 8 SW ING Reset 42 Lock 13 Coolleat 15 1 3 General Function for wireless remote controller Model and Specification Rated voltage 3 0V 2pieces of LRO3 7 batteries N SWING AIRDIRECION OK J 1 2 Fa nspeed se ttin g 4 Adust A Airdirecton setting 9 Time setting 210 Time ON H Time OFF 14 Conf rmb 16 Economic operation MLCAC UTSM 2010 10 Visual photo 108 Control MLCAC UTSM 2010 10 Controller Buttons and functions 1 MODE Once pressing running mode will be selected in the following sequence COOL DRY HEAT heating mode for only type unit 2 FAN SPEED Fan speed will be selected in following seguence once pressing this button w MED HIGH 3 Adjust Y Decrease the s t temp Keeping pressing will decrease the temp with 1 per 0 5s 4 Adjust Increase the set temp Keeping pressing will increase the temp with 1 0 55
26. ED is regarded as HIGH 3 Economical operation displays 110 Control MLCAC UTSM 2010 10 Controller 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 set currently Press the button CLOCK for 4 seconds the HOUR part will flash press button and Y to adjust HOUR Press the button CLOCK again the minute part flash press buttonA 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 NAME AND FUNCTIONS OF BUTTONS ON WIRE CONTROLLER 7 ON OF BUTTON mode selection button 1 ka SPEED SELECTION S FAN SPEED SELECTION TRA N IMG TRAIT 9 X AJUDSTMENT BUTTON CO G nad funi timer on butt
27. NO Check whether the connecting line of every reactor is normal If the line is broken the resistance of the two ports is co Trouble is solved Replace the connecting line Replace the compressor check whether the system can work normally i Trouble is solved i Replace with the same model fuse Check whether the fuse on NO the power board is normal Yes Replace the power board Outdoor Units 93 Troubleshooting MLCAC UTSM 2010 10 14 P6 malfunction For three phases units P6 display Module protection Regulate it to correct then check whether the system can work normally Check whether the voltage range of P N on Check whether the input power supply IPM module is normal DC 350 650V is correct 380 415V 3N 50Hz Check whether the connecting line Check whether the power between main board and the IPM Connect it tightly supply line is connected Connect it correctly and module is connected tightly check ok or not correctly and tightly tightly check ok or not Yes No Check whether the lines in Connect it tightly Check whether the connecting line of the compressor is E part box are connected tightly check ok or not Connect it tightly check ok or not connected tightly Yes Check whether the three phase bridge Replace the three phase is normal bridge Replace the IPM module check whether the system can work Yes Y normally Trouble is solved ES Check wh
28. and drop height is higher Max pipe length up to 50m refer to D and Max drop height up to 30m refer to 17 Optimal design smaller Control Box Space saving and convenient for wiring Using fire resistance galvanized steel for E box material Metal box make the control part more stable and prevent damaging 18 360 air flow panel 360 air flow delivery ensures uniform airflow distribution optional 10 Four way Cassette Type MLCAC UTSM 2010 10 Dimensions 2 Dimensions Drain side Tubing side Connecting point of refrigerant pipe Liquid side Connecting point of drain pipe m Outiet niet 880mm hole Unit mm MODEL tui 300 159 Connecting point of refngerant pepe av Gas side _ 680 Hookdocaton 950 Panel RN en L T T ng Ce Pane 2500mm 36000 300 48000 15 9 Four way Cassette Type Service Space MLCAC UTSM 2010 10 3 Service Space gt 1000mm 21000mm 12 Four way Cassette Type MLCAC UTSM 2010 10 4 Wiring Diagrams MCC 36HRDN1 MCC 48HRDN1 Wiring Diagrams WIRING DIAGRAM INDOOR UNIT 202042790060 imi FUNCTION OF SNETCH FOR UMIT AIRES F of the BP ard of the 81 menn the addresses of the different units
29. ase the time by 1 hour Adjust the figure to 0 00 will cancel time ON setting 12 RESET inner located Press this button with a needle of 1mm to cancel the current setting and reset remote controller 13 LOCK inner located Press this button with a needle of 1mm to lock or unlock the current setting 14 OK Used to confirm the time setting and modification 15 COOL HEAT inner located Press this button with a needle of 1mm to shift mode between COOL only and COOL amp HEAT During setting background light will be lightened Factory default mode is COOL amp HEAT 16 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 Control 109 Controller MLCAC UTSM 2010 10 1 2 KJR 10B NAME AND FUNCTION OF LCD ON THE WIRE CONTROLLER EN N 2 speed 1 NODE display MODE AUTO COOL ORY HEAT 1 7 Temperature display 3 Economical operation display 1 Mode select button Press MODE button to select COOL DRY HEAT FAN ONLY is invalid for COOL ONLY wire controller AUTO COOLING DEHUMIDIFY HEATING 2 Fan 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 M
30. aub the surfaces of the flare pipe and the joint nuts with frozen oil and wrench it for 3 4 rounds e With hands before fasten the flare nuts Be sure to use two wrenches simultaneously when you connect or disconnect the pipes Flare dimension Pipe gauge Tightening torque Min mm Max Flare shape 14 2 17 2N m 32 7 39 9N m s EM 49 5 60 3N m 927 L9 ee 61 8 75 4 630 770 kgf cm 97 2 118 6N m 990 1210kgf cm b The stop value of the outdoor unit should be closed absolutely as original state Every time you connect it first loosen the nuts at the part of stop value then connect the flare pipe immediately in 5 minutes If the nuts have been loosened for a long time dusts and other impurities may enter the pipe system and may cause malfunction later So please expel the air out of the pipe with refrigerant before connection the air after connecting the refrigerant pipe with the indoor unit and the outdoor unit Then fasten the nuts at the repair points 2 Locate The Pipe a Drill a hole in the wall suitable just for the size of the wall conduit then set on the fittings such as the wall conduit and its cover b Bind the connecting pipe and the cables together tightly with binding tapes Do not let air in which will cause water leakage by condensation c Pass the bound connecting pipe through the wall conduit from outside Be careful of the pipe allocation
31. e Power supply 220 240V 50Hz OR 220V 60Hz sy Circuit breaker 1 phase Power wiring indoor Communication Bus Circuit breaker Outdoor Power wiring outdoor CENTRAL CONTROL MONITOR CCM COMPUTER For 18000 60000Btu h with 1 Phase outdoor unit Power supply 220 240 50Hz 1 phase Power supply 380 415V 50Hz E S Circuit breaker 3 phase Fower wiring indoor Circuit breaker Communication Bus E Outdoor Unit Power wiring outdoor CENTRAL CONTROL MONITOR CCM COMPUTER For 36000 60000Btu h with 3 Phase outdoor unit Ceiling amp Floor Type 65 Field Wiring MLCAC UTSM 2010 10 INDOOR UNIT shielded cable to CCM 1 Phase 220 240V 50Hz or 220V 60Hz 330 5 3 core cable 3x1 0 mm 3 shielded cable OUTDOOR UNIT Power supply 1 Phase 220 240V 50H or 220V 60Hz 3 core cable 3x2 5 For 18000 60000Btu h with 1 Phase outdoor unit INDOOR UNIT Power supply 3 core shielded cable 1 Phase 220 240 to 3x0 5 3 core cable 3x1 0 3 core shielded cable mint Power supply 3 Phase 380 415 5 core cable 5x2 5 OUTDOOR UNIT For 36000 60000Btu h with 3 Phase outdoor unit 66 Ceiling amp Floor Type MLCAC UTSM 2010 10 Outdoor Unit Outdoor Unit Part 3 Outdoor Units Msg AS IONS e 68 Service U J T 69 Piping 70
32. e Check whether the EEPROM is inserted well NG Insert the EEPROM well Yes Replace outdoor main board 82 Outdoor Units MLCAC UTSM 2010 10 2 E2 malfunction E2 display Communication malfunction between indoor IC and outdoor IC Judge 1 Check whether the indoor unit power is on Yes Judge 2 Check whether the signal wiring is shield cable or whether the shield cable is earthed Yes Judge 3 Check whether the signal wiring between the indoor and outdoor units is wrong polarity Judge 4 Check whether the signal wiring between the indoor and outdoor units is broken No Indoor or outdoor main board is broken Replace the main board until the malfunction disappears Outdoor Units No No Yes Yes Troubleshooting Turn on the indoor unit power Adopt the shield cable let shield cable earthed Connect the signal wiring correctly Replace the broken wiring Troubleshooting MLCAC UTSM 2010 10 3 E3 malfunction For 18K amp 24K amp 30K E3 display Communication malfunction in outdoor IC and DSP Yes Check whether the indicator lights LED1 on the main board is flashing Replace the outdoor main board No Check whether the connecting wiring between the IPM module and the CN4 Yes Insert the connecting wiring well over on the main board is broken off again Disconnect the connecting wiring between the IPM module and the CN4 on the main board use the multimeter to measure the
33. eds one drainpipe trap 3 A plug should be designed to do cleaning 4 3 Upwards drainage drain pump For Four way cassette compact Lean over 1 50 th HN NA Pump pipe clasp the fittings Installation 101 Water Drainage MLCAC UTSM 2010 10 For Four way cassette Lean over 1 50 j HN 4 4 Convergent drainage 1 The number of indoor units should be as small as possible to prevent the traverse main pipe overlong as FF ss ao E E Pump pipe clasp 2 Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system Ar ventilatio Gradient 1 50 above 3 Selecting the diameter Number of connecting indoor units Calculate drainage volume Select the diameter Calculate allowed volume Total cooling capacity of indoor units HP x2 I hr Allowed volume lean 1 50 I hr I D mm Thick Hard PVC cx lt 14 25 3 0 Hard PVC 14 lt lt Z 30 3 5 Hard PVC 88 lt 7334 240 4 0 Hard 175 lt ex334 2 50 4 5 Hard PVC 334 co Z 80 6 0 4 5 Drainage test 1 Drainage without drain pump After finishing drainpipe installation pour some water into the water receiver plate to check if the water flows smoothly 2 Drainage with drain pump Poke the Water Level Switch remove the cover use water pipe to pour 2000ml water into the water receipt plate through the water i
34. ether the 3300uF 400V Replace this electrolytic No electrolytic capacitor is normal capacitor Replace the main board check whether the Y system can work normally Trouble is solved Replace the compressor check whether Yes saa the system can work normally 94 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting Appendix Indoor Temp and Pipe Temp Sensor Resistance Value Table C kom Kom C Kom Kom Outdoor Units 95 Installation 96 MLCAC UTSM 2010 10 Part 4 Installation 1 Precaution Installation 97 2 Vacuum Dry and Leakage Checking 98 3 Additional Refrigerant Charge 100 4 Water Drainage 101 eeen 104 SITO 105 lest Operati u T 106 Installation MLCAC UTSM 2010 10 Precaution on Installation 1 Precaution on Installation 1 Measure the necessary length of the connecting pipe and make it by the following way a Connect the indoor unit at first then the outdoor unit Bend the tubing in proper way Do not harm them Specially Notice the pipe length height dimension of each capacity Maximum pipe length Piping sizes Gas 12 000Btu h 18 000Btu h 6 4 12 7 CAUTIONS D
35. g only H cooling amp heating Capacity i 000Btu h Product Series A Time A Designed B Time B Designed C Time C Designed D Time D Designed Universal Outdoor Unit O Outdoor unit U Universal Midea General Information MLCAC UTSM 2010 10 Features Features 4 1 Universal outdoor unit design Indoor unit with the same capacity can match with the same outdoor unit 4 2 High efficiency and energy saving Thanks to the DC inverter technology and optimized piping system the EER and COP of whole series can easily reach A class 4 3 Low noise and low starting current Thanks to the DC inverter technology the system can work with low noise and very small starting current 4 4 Intelligent refrigerant adjustment technology Throttle part is made up of capillary and electronic expansion valve EXV The outdoor unit can output the most accurate capacity in any condition 4 5 Working in cooling mode under 15 C Outdoor unit built in with low ambient kit it can control the outdoor unit s fan and cooling can be performed throughout the year for computer rooms banquet halls etc Wide operation range covers outdoor temperatures as low as 15 C for cooling 4 6 Indoor amp outdoor unit s power supply is separate 4 7 All indoor units have network control function 4 8 All indoor units have Auto restart function General Information 5 MLCAC UTSM 2010 06 Part 2 Indoor Units Indoor Units Four way
36. mO Tm zoe am m u 2020 9 ts Remark MFA Max Fuse Amps A Duct Type 25 Sound Levels MLCAC UTSM 2010 10 7 Sound Levels Concealed Duct Type Discharge Suction Duct Duct 1 4m Microphone Noise level dB A de 26 Duct MLCAC UTSM 2010 10 Accessories Soundproof insulation sheath 8 Accessories Tubing amp Fittings Drain joint Drainpipe Fittings for cooling amp heating Seal ring Remote controller Frame Remote controller amp Its Frame Mounting screw ST2 9 10 C H Alkaline dry batteries AM4 Remote controller manual Wired controller amp Frame Wired controller Ses 1 Magnetic ring twist the electric wires L EMS SES and N around it to five circles Duct 27 The Specification of Power MLCAC UTSM 2010 10 9 The Specification of Power MODEL 220240v 50uz 220 240v 50Hz 220 240V 50Hz POWER POWER WIRING mm 3x1 0 3x1 0 CIRCUIT BREAKER A 15 15 1 PHASE 1 PHASE 1 PHASE 3 PHASE OUTDOOR 220 240 5 220 240V 220 240V 380 415 50HZ POWER POWER WIRING mm 3x2 5 3x4 0 CIRCUIT BREAKER A 30 6 INDOOR OUTDOOR 3 shielded wire 3 core Shielded wire 3 shielded wire CONNECTING WIRING mm 28 Duct Type
37. n running lamp timer lamp defrosting lamp alarm lamp In outdoor unit communication checking channel is abnormal s Room temperature sensor checking channel is abnormal A X Water level alarm malfunction X Extinguish rFlash at 5Hz Outdoor Units 77 Troubleshooting MLCAC UTSM 2010 10 For Duct type In Outdoor unit COMM Checking channel isabnormal Room TEMP sensor checking channel isabnormal 2 Pipe TEMP Sensor checking channel is abnormal T 2 E3 Pipe TEMP Sensor checking channel isabnormal T 2B Be closed bythe remote control function O Flashingat5HZ Flashing at1HZ For MODEL 18 60 78 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting 1 Operation lamp flashes Operation lamp flashes at 5Hz Judge 1 Indoor temp sensor is abnormal No Check whether the resistance of the evaporator temp sensor is correct according to Annex 1 Replace evaporator temp sensor Yes Judge 2 Room temp sensor is abnormal No Check whether the resistance of the room temp Replace room temp sensor sensor is correct according to Annex 1 Yes Replace indoor PCB Outdoor Units 79 Troubleshooting MLCAC UTSM 2010 10 2 Timer lamp flashes Timer lamp flashes at 5Hz Judge Indoor outdoor unit communication is abnormal Refer to the outdoor unit LED display E2 malfunction in the following part 3 Alarm lamp slow flash Indoor alarm lamps flash at 1Hz Condenser temp sen
38. ng the pipes 3 Insulate for the jointing area expanding area and the flange area Insulate for the jointing area expanding area and the flange area should be done after checking leakage of the pipes Make sure there s no clearance in the joining part of the accessorial insulation material and local preparative insulation material No ENE ONES Heat insulation mrncteriol p should be overlap fe 2 LAM N Heat insulation material Field 5 3 Drainage pipe insulation 1 The connection part should be insulated or else water will be condensing at the non insulation part 5 4 Note 1 The jointing area expanding area and the flange area should be heat insulated after passing the pressure test 2 The gas and liquid pipe should be heat insulated individually the connecting part should be heat insulated individually 3 Use the attached heat insulation material to insulate the pipe connections pipes tie in expand nut of the indoor unit 6 Wiring Please refer to the Wiring Diagram Installation 105 Test Operation MLCAC UTSM 2010 10 7 Test Operation 1 The test operation must be carried out after the entire installation has been completed 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
39. nlet N NG SS V NG T k oour water Turn the power to Cooling operation Check the pump s operation and switch on the Water Level Switch Check the pump s sound and look into the transparent hard pipe in the outlet at the same time to check if the water can discharge normally 102 Installation MLCAC UTSM 2010 10 Water Drainage Stop the air conditioner running turn off the power and put back the cover e Stop the air conditioner After 3 minutes check if it has abnormity If the collocation of drainpipes is illogical the water will flow back overfull which will cause the alarm lamp flashes even overflow from the water receipt plate Keep pouring water until it gives an alarm signal for high water level check if the pump drains water at once If the water level can t fall below the alarmed water level after 3 minutes the air conditioner will stop Turn off the power and drain the remained water and then turn on the air conditioner Note the drain stuff in the main water receipt plate is for maintenance Stuff up the drain stuff to prevent water leakage Installation 103 Insulation Work MLCAC UTSM 2010 10 5 Insulation Work 5 1 Insulation material and thickness 1 Insulation material Insulation material should adopt the material which is able to endure the pipe s temperature no less than 70 in the high pressure side less than 120 in low pressu
40. on 2 a SWING me AJUDSTMENT v ECONOMICAL fo Af timer off button 3 clock button DO C Jj a LC SWING BUTTON confirm button 5 RERACE LOCK HEATING 12 ECONOMICAL button replace nutton 6 COOL ONLYICOOL AND n ISXHEATING SELECTION BUTTON 4 LOCK BUTTON 1 mode selection button is used to select mode push the button one time then the operation modes will change In turn as follows AUTO COOLING DEHUMIDIFY gt HEATING FAN Remark no heating mode if wire controller is set as the cool only 2 Timer on button Control 111 Controller MLCAC UTSM 2010 10 112 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 for the first electrifying or resetting When push the button for 4 seconds
41. pe 61 Electric Characteristics MLCAC UTSM 2010 10 6 Electric Characteristics Indoor Unit Power Supply mode Hz Voltage Min Max MFA MUB 36HRDN1 220 240 MUB 48HRDN1 50 220 240 198 254 15 Remark MFA Max Fuse Amps A 7 Sound Levels T Air outlet side 1m im u i 1m Air outlet side 1 5m Microphone Ceiling Floor Noise level dB A Model 62 Ceiling amp Floor Type MLCAC UTSM 2010 10 Accessories 8 Accessories 1 Hook Installation fittings 2 Hanging arm 4 nu mum R denn 4 Remote controller holder 5 Mounting screw ST2 9x10 C H 6 Alkaline dry batteries AM4 Ceiling amp Floor Type 63 The Specification of Power MLCAC UTSM 2010 10 9 The Specification of Power CAPICITY Btu h FREQUENCY INDOOR AND VOLT 220 240V 3092 200 240V 5092 200240V 50Hz 220 240 50Hz 220V 6087 UNIT ORE 3X1 5 3X1 0 3X1 0 3X1 0 3 1 0 mm 1 PHASE 1 PHASE 3 PHASE 1 PHASE FREQUENCY NE Ar 220240V 5087 220 2401 50Hz 380 415V 50Hz 220V 6087 POWER WIRING 3X2 5 3X2 5 5 2 5 3X2 5 mm i i INDOOR OUTDOOR CONNECTION WIRING 4 WIRE SHIELDED WIRE 3 SHIELDED WIRE 3 CORE SHIELDED WIRE CORE SHIELDED WIRE mm 2 AX1 5 3X0 5 3X0 5 Ceiling amp Floor MLCAC UTSM 2010 10 Field Wiring 10 Field Wiring Power supply 220 240V 50Hz OR 220V 60Hz 1 phas
42. prevent water entering and forming condensation water Vacuum dry for the second 1h pumping Determinant Pass if achieving below 55mmHg If 55mmHg can t be achieved in 2h repeat procedure and Vacuum placing test 1h Sketch map of special vacuum dry procedure kgf cm Add pressure Vacuum 0 h test dh h dry 2 Vacuum Vacuum dry h Vacuum destroy acuunm dr 9 Installation 99 Additional Refrigerant Charge MLCAC UTSM 2010 10 3 Additional Refrigerant Charge Caution a Refrigerant cannot be charged until field wiring has been completed b Refrigerant may only be charged after performing the leak test and the vacuum pumping c When charging a system care shall be taken that its maximum permissible charge is never exceeded in view of the danger of liquid hammer d Charging with an unsuitable substance may cause explosions and accidents so always ensure that the appropriate refrigerant is charged e Refrigerant containers shall be opened slowly f Always use protective gloves and protect your eyes when charging refrigerant The outdoor unit is factory charged with refrigerant Calculate the added refrigerant according to the diameter and the length of the liquid side pipe of the outdoor unit indoor unit id Added Refrigerant When Over 5m One way 11g mx L 5 30g mx L 5 60g mx L 5 Remark R g Additional refrigerant to be cha
43. re side For the cooling type machine no requirements at the low pressure side Example Heat pump type Heat resistant Polyethylene foam withstand above 120 Cooling only type Polyethylene foam withstand above 100 2 Thickness choice for insulation material Insulation material thickness is as follows sse Pipe diameter mm Adiabatic material thickness 064 0254 28 6 038 Inner diameter 20 032 5 2 Refrigerant pipe insulation 1 Work Procedure Before laying the pipes the non jointing parts and non connection parts should be heat insulated When the gas proof test is eligible the jointing area expanding area and the flange area should be heat insulated 2 Insulation for non jointing parts and non connection parts Gas pipe and liquid pipe should Insulate the gas pipe Insulate the gas pipe and not be put together to insulate cooling only liquid pipe Heat insulation 104 Installation MLCAC UTSM 2010 10 Insulation Work For construction convenience before laying pipes use insulation material to insulate the pipes to be deal with at the same time at two ends of the pipe remain some length not to be insulated in order to be welded and check the leakage after layi
44. rged L m The length of the refrigerant pipe one way D mm Liquid side piping diameter 100 Installation MLCAC UTSM 2010 10 Water Drainage 4 Water Drainage 4 1 Gradient and Supporting 1 Keep the drainpipe sloping downwards at a gradient of at least 1 50 Keep the drainpipe as short as possible and eliminate the air bubble 2 The horizontal drainpipe should be short When the pipe is too long a prop stand must be installed to keep the gradient of 1 50 and prevent bending Refer to the following table for the specification of the prop stand ML NE NN Distance between the prop stands 3 Precautions The diameter of drainpipe should meet the drainage requirement at least the drainpipe should be heat insulated to prevent atomization Drainpipe should be installed before installing indoor unit After powering on there is some water in water receiver plate Please check if the drain pump can operate correctly All connection should be firm Wipe color on PVC pipe to note connection Climbing horizontal and bending conditions are prohibited The dimension of drainpipe can t less than the connecting dimension of indoor drainpipe Heat insulation should be done well to prevent condensation Indoor units with different drainage type can t share one convergent drainpipe 4 2 Drainpipe Trap 1 If the pressure at the connection of the drainpipe is negative it needs to design drainpipe trap 2 Every indoor unit ne
45. se the high pressure Yes nitrogen or refrigerant to blow pipe vacuumize and Judge 3 The refrigerant pipe is blocked charge the refrigerant again No Replace outdoor main board 92 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting 13 P6 malfunction For single phase units P6 display Module protection Check whether the voltage range of P N on IPM module is normal DC277 356V for 18K 24K 30KBtu h DC277 410V for 36K 48KBtu h Check whether the input power supply is correct 220 240V 1N 50Hz Regulate it to correct then check whether the system can work normally Check whether the connecting line Check whether the power between main board and the IPM Connect it tightly supply line is connected Connect it correctly and module is connected tightly check ok or not correctly and tightly tightly check ok or not Check whether the lines in Connect it tightly Check whether the connecting E part box are connected tightly check ok or not line of the compressor is Connect it well connected correctly or tightly check ok or not Check whether the single phase bridge is normal Use the multimeter to measure the resistance between each two terminals check Replace the IPM module check whether there is the condition that value of Replace the whether the system can work resistance is O single phase bridge normally No Trouble is solved Replace the main board check whether the system can work normally Yes
46. sor or outdoor unit is malfunction Judge 1 Condenser temp sensor is abnormal Check whether the resistance of the condenser temp sensor is No correct according to Annex 1 Replace condenser temp sensor Yes Judge 2 Outdoor unit is abnormal Refer to the outdoor unit LED display 4 P1 P2 malfunction in the following part 80 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting 3 Alarm lamp quick flash Alarm lamp flashes at 5Hz Judge Water level switch is abnormal No Check whether the water pump can work normally Replace water pump Yes Yes Select the cooling mode to make water pump work for a few minutes then check Trouble is solved whether the system can run normally No Yes Check whether the water drain pipe is blocked fluently No Replace indoor PCB 4 Defrost lamp flashes Defrost lamp flashes Solve to make the water can flow Judge Mode conflicts malfunction Turn the indoor unit to heating mode or turn off the unit Outdoor Units 81 Troubleshooting MLCAC UTSM 2010 10 9 2 Outdoor unit malfunction Ww fsxes O N xE Communication malfunction between indoor and outdoor iC _ Po Toptemperature protection of compressor Ww WG current protection of compressor 00 Pa Discharge temperature protection of compressor P5 Miah temperature protection of condenser Module protection 1 E0 malfunction E0 display EEPROM malfunction Judg
47. 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 Control MLCAC UTSM 2010 10 Controller Installation Wiring Principle Sketch Wire Joint 5 5 Core Shield Cable the length is decided by installation RUN GND i 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 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 Wood Mounting Screw M4X20 Wire Controller Bottom Cover When installing the Wire Controller Cover be sure there is a hole in 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 ex
48. tion When compressor discharge temperature is higher than 115 C the unit will stop and unit runs again when compressor discharge temperature is lower than 90 C P4 display Discharge temperature protection of compressor Yes Check whether the compressor discharge temp is more than 115 C 2 Check whether the wiring connection is right between compressor discharge temp sensor and Correct the wiring connection PCB according to wiring diagrams Check whether the refrigerant is leak Yes Judge The discharge temp sensor is broken Stop leaking and add refrigerant Method Check whether the resistance of compressor discharge Replace the compressor temp sensor is right refer to the Annex 2 discharge temp sensor Yes Replace outdoor main board Outdoor Units 91 Troubleshooting MLCAC UTSM 2010 10 12 P5 malfunction When condenser high temp is more than 65 C the unit will stop and unit runs again when outdoor pipe temp less than 52 C P5 display High temperature protection of condenser Check whether the condenser temperature is more than 65 C Yes No Check whether the resistance of condenser temp No Rep the t sensor is correct refer to the Annex 1 SENA TICCI pera IC Replace outdoor main board Yes Stop the unit Judge1 The outdoor temp is too high No Yes Clean the heat exchanger Judge 2 Check whether the heat exchanger is dirty No Let the refrigerant out then u
49. trudes out of the 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 Control 113
50. voltage between the IPM module CN1 port s 3 and 4 pillar check whether it is 5V the third pillar on the main board Replace outdoor main board labels 5V Check whether the connecting wiring between the IPM module positive pole and the CN12 on the power board is broken off Insert the connecting wiring well over again Check whether the connecting wiring between the IPM module negative Yes pole and the CN13 on the power board is broken off Insert the connecting wiring well over again Use the multimeter to measure whether the voltage between the CN12 and Yes the CN13 on the power board is between 277V 345 V Replace the IPM module No Replace the power board 84 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting 4 E3 malfunction For 36K amp 48K amp 60K E3 display Communication malfunction in outdoor IC and DSP Ye 5 Check whether the indicator lights LED1 or LED2 main control board are flashing Replace PCB Yes Install the IC U3 chip of the PCB over again check whether the system Yes Check whether the output of the transformer to CN4 socket is well Replace PCB No Replace the transformer Outdoor Units 85 Troubleshooting MLCAC UTSM 2010 10 E4 display 5 E4 malfunction Judge 1 Outdoor condenser temp sensor T3 is malfunction Yes Check whether the wiring of the condenser temp sensor is broken off Connect the wiring well No Check whether the resistance of condenser temp
51. ystem if the leakage is serious there will be distinct gas leakage cici sound if the leakage is slight use the suds mixture of water Yes and abluent is also ok if it can make bubble or electronic leak detector Method Connect the pressure gauge to the gauge joint of the system check whether the pressure is lower than 0 14MPa No Yes Let the refrigerant out then use the high pressure Judge 5 The refrigerant pipe is blocked nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again p No Replace outdoor main board Outdoor Units 89 Troubleshooting MLCAC UTSM 2010 10 10 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 Check whether the refrigerant system is ok Yes Judge 2 Check whether the outdoor ambient temperature is too high Stop the unit i No Yes Judge 3 Check whether the outdoor unit is bad ventilation Make the outdoor unit ventilate well No Yes Judge 4 Check whether the heat exchanger is dirty Clean the heat exchanger No Yes Let the refrigerant out then use the high pressure Judge 5 The refrigerant pipe is blocked nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again p No Replace outdoor main board 90 Outdoor Units MLCAC UTSM 2010 10 Troubleshooting 11 P4 malfunc
Download Pdf Manuals
Related Search