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SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED type
Models
Indoor unit Outdoor unit
MW18Y3F MR18Y3F
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS . . . . . . . . . . . 2
REFRIGERANT SYSTEM DIAGRAM . . . . . 3
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . 4
INDOOR PCB CIRCUIT DIAGRAM . . . . . . 5
OUTDOOR PCB CIRCUIT DIAGRAM . . . . 8
ERROR CONTENTS . . . . . . . . . . . . . . . . . . 10
DISASSEMBLY ILLUSTRATION . . . . . . . . 1
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SPECIFICATIONS TYPE COOL & HEAT INVERTER INDOOR UNIT MW18Y3F OUTDOOR UNIT MR18Y3F COOLING CAPACITY 5.28 kW HEATING CAPACITY 6.30 kW ELECTRICAL DATA POWER SOURCE 208 - 230 V FREQUENCY 60 Hz COOLING 7.7 A RUNNING CURRENT HEATING 8.6 A COOLING 1.73 kW INPUT WATTS HEATING 1.93 kW E.E.R. COOLING 3.05 kW/kW COP HEATING 3.28 kW/kW MOISTURE REMOVAL 2.8 L/hr Cool 700 m3/hr Heat 700 m3/hr AIR CIRCULATION -High COMPRESSOR Hermetic type, 4 pole, 3 phase, TYPE DC inverter motor, Rotary DI
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DIMENSIONS Model : MW18Y3F / MR18Y3F (unit : mm) 790 215 508 20 540 125 66 300 790 2006.02.20 2 275 578 347 10 48 320
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REFRIGERANT SYSTEM DIAGRAM Model : MW18Y3F / MR18Y3F Heat exchanger 3-Way ( INDOOR ) valve Muffler 2-Way Sub-heat valve exchanger ( INDOOR ) 4-Way valve Strainer Expansion valve Heat exchanger Strainer ( OUTDOOR ) Cooling Heating Refrigerant pipe diameter Liquid : 1/4" (6.35 mm) Gas : 1/2" (12.7 mm) 2006.02.20 3 Sub-accumulator Compressor
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CIRCUIT DIAGRAM CN201 Model : RED 1 1 1 WHITE 2 2 2 MW18Y3F / MR18Y3F WHITE 3 3 3 1 WHITE 4 4 4 2 WHITE 5 5 5 3 WHITE 6 6 6 4 WHITE 7 7 7 5 INDOOR UNIT RED 1 1 1 1 ORANGE 2 2 2 2 YELLOW 3 3 3 3 STEP MOTOR M PINK 4 4 4 4 BLUE BLUE 1 1 5 5 5 5 YELLOW 2 2 BLACK WHITE 1 3 3 BLACK BLACK 2 4 4 FM 5 5 PIPE TEMPERATURE RED 6 6 THERMISTOR FAN MOTOR BLACK 1 BLACK 2 SW ROOM TEMPERATURE POWER CIRCUIT THERMISTOR GRAY 3 3 2 2 GRAY VARISTOR 1 1 FUSE 3.15A THERMAL FUSE G 1 2 3 102 TERMINAL OUTDOOR UNIT TO OUT
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INDOOR PCB CIRCUIT DIAGRAM Model : MW18Y3F CONTROL UNIT EZ-0051FHSE TERMINAL BOARD N N L L SERIAL OUTDOOR UNIT 3 EARTH EARTH TERMINAL W3 W2 W1 RED BLACK WHITE CN7 B3B-XASK CN11 1 B2B-XH TERMINAL FUSE 1 103 3 2 EX-OUT CN12 EXTERNAL COMMUNICATION CONNECTOR B3B-XH 1 EX-I N CN10 3 B5B-XASK CN10-1 RED 1 CN10-2 WHITE 2 REMOTE CONTROL UNIT CN10-3 BLACK 3 4 5 CN3 CN201 CONTROLLER PCB ASSY S7B-ZR-3.4 ZHR-07 JB20-07HG K04CP-0504WSE-C1 CN3-1 RED 1 1 CONTROLLER PCB ASSY CN3-2 WHITE
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Model : MW18Y3F CONTROLLER PCB ASSEMBLY K04CP-0500HSE-C1 R29 10K CN7 <1/10W> B3B-XASK 5V IC2 5V 13.5V 12V IC6 5V 5V GND 5V BD4842 R44 1K 5V D6 NJM7805 CN6 R39 10K R28 10K <1/10W> D1F60 1 3 <1/10W> TERMINAL BOARD 1 2 3 1 2 4 <1/10W> 3 N L O I VDD NC C25 G 1 2 R42 49.9K C46 VOUT 2 3 5 0.1 C20 C22 C23 C24 GND NC <1/10W> 0.1 C26 C19 + + + RXD (1%) 0.1 330/ 10/ 0.1 0.1 W1 W2 330/ W4 W3 HEAT EXCHANGER TXD WHITE BLACK GREEN RED 25V 25V 25V THERMISTOR VPP 5V JP1 R43 1K
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Model : MW18Y3F INDICATOR PCB ASSY K03DV-0400WSE-D0 5V 5V D206 SLR-325 CN201 1 1 2 2 D204 SLR-325 3 4 1 2 5 D203 SLR-325 6 7 1 2 8 C201 9 D201 SLR-325 0.1 2 1 5V R201 47 VCC 2 <1/4W> I C201 1 OUT GP1UM261R GND 3 +C202 47/ 10V 2006.02.20 7
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OUTDOOR PCB CIRCUIT DIAGRAM Model : MR18Y3F INVERTER ASSEMBLY EZ-005SHUE EMI FILTER A REACTOR U UL3271 AWG16 RED RED UL1015 AWG14 B W7 BLACK W1 B UL3271 AWG16 V ( A-1 ) WHITE WHITE B W8 C. M. UL1015 AWG14 W2 B WHITE UL3271 AWG16 W ( B-1 ) BLACK BLACK B W9 COMPRESSOR UL1015 AWG20 RED W4 B ( D-1 ) 1 BLACK CN30 UL1015 AWG16 2 B2P3-VH-B-C 4-WAY VALVE W3 GREEN B BLACK 3 BLACK UL3271 AWG14 ( C-1 ) WHITE UL3271 AWG14 RED N 1 UL1015 AWG20 W100 WHITE TO W10 W11 L UL1015 AWG20 INDOOR B B 2 W10
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Model : MR18Y3F CONTROLLER PCB ASSY F100 C100-C102 15A-250V K05CM-0507HUE-C1 660/450V x 3 15V DC V R200 39 L300 U V W REACTOR AC208 - 230V F4 <1/2W> D102 ELC0607RA 60Hz BET 3.15A-250V 1NH42 W7 U1JU44 x 3 W8 W9 LL25XB60 x 2 PFC5000 C6 C4 R103 FH2 W1 W10 W11 -0702F 0.01/250V 3.3/275V D200 D201 D202 D100 L 100 R104 2 1 <1/2W> BLACK + + + + F50 1 2 220K VA1 470V 2 Q100 3A 3 4 R400 <2W> - 0.20 <1W> 1% x 8 1 GT30J122 C1 C103 R401 3 FH1 + + + 0.1/ 0.1 + R402 275V R102 I C200 VA2 470V D101
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ERROR CONTENTS Model : MW18Y3F / MR18Y3F Self-diagnosis function table (Flashing LED Display) * Detailed Trouble Display (secondary level) can be indicated by pressing Test Operation button. Trouble Display (primary) Detailed Trouble Display (by Test Button) Detailed Error Item Error Operation Timer Error Operation Timer When a signal is not read continuously for 10 secs Serial signal Normal 1 sec Serial reverse signal error 0.1sec 0.5sec from power relay ON immediately after operation starts e
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Trouble Display (primary) Detailed Trouble Display (by Test Button) Detailed Error Item Error Operation Timer Error Operation Timer Outdoor unit 0.5sec 1 sec Current trip 0.1sec 0.5sec Current trip error is 2nd time within control error 5 times blinking blinking 2 times start up >>Permanent stop CT abnormal 0.1sec 0.5sec Current detection value is 0A for more blinking 3 times than 1 sec when compressor is operated at more than 56rps >>Automatic release after 3 min. ST Compressor rotation 0.1sec
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DISASSEMBLY ILLUSTRATION Model : MW18Y3F 2006.02.20 12 4 5 6 2 2 1 5 1 7 51
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Model : MW18Y3F 2006.02.20 13 38 39 52 42 27 24 33 40 48 32 36 37 29 26 20 46 21 28 236 43 32 30 61-2 61-1
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Model : MR18Y3F 2006.02.20 14 26 1 19 2 16 18 25 29 13 34 35 7 24 20 6 14 11 37 32 15 37 3 4 10 8 36 12 22 5 21 39
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PARTS LIST INDOOR UNIT Part No. Ref. Ord. Description No. Q'ty MW18Y3F 1 Air Filter 9309997011 2 Filter (Electric + ION) 9312152018 4 Holder (Filter) 9306602017 5 Clamper (Grille) 9306755010 6 Front Panel 9309999053 7 Intake Grille Assy 9313566043 20 Gear-A 9309994003 21 Casing Assy 9311354079 24 Crossflow Fan Assy 9307836015 26 Clamp (Motor) 9310102008 27 Shaft Holder-C Assy 9306628017 28 Drain Hose Assy 9314147012 29 Drain Cap Assy 9314493010 30 Wire Clamper 9311946014 32 Cover (Switch) 9313
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OUTDOOR UNIT Part No. Ref. Ord. Description No. Q'ty MR18Y3F 1 Top Panel Assy 9309230057 2 Top Panel Seal 9309228016 3 Cabinet Sub Assy 9314809040 4 Blow Down Grille 9308884015 5 Cabinet Right Assy 9309236011 6 Fan Ring 9308885012 7 Grip 9308880017 8 Switch Cover Assy 9309237049 10 4-Way Valve 9970056017 11 Expansion Valve Assy 9311641018 12 Strainer 9311440017 13 Condenser Assy 9311382027 14 Thermistor Spring-A 313728262708 15 Thermistor Spring-A 9300089012 16 Propeller Fan 9309909014 18 Moto
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STANDARD ACCESSORIES Part No. Name and Shape MW18Y3F Wall hook bracket 9312752010 Remote control unit 9314990038 Remote control unit holder 9305642014 Battery (penlight) 0600185534 Cloth tape 9310519004 Tapping screw (big) ( 4 x 25) 0700076046 Tapping screw (small) ( 3 x 12) 0700019036 Air cleaning filter 9312153015 9311925033 Air cleaning filter frame 9306602017 Seal A 9304536000 2006.02.20 17
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0511G2952
