TECHNICAL & SERVICE MANUAL - - \ Wireless type Models ' MS-OSDW-U1 c s w , w ~ ~- MSH-OSD W-U%SW,WGI MSH-12DN-U1 ts&,woi MSH-15DN-U1 CSWI I FEATURES LCD wireless remote controller Models MS-O9DW MSH-O9DW MSH-12DN MSH-15DN Cooling Capacity 9,000 BTU/h 8,800 BTU/h 12,500 BTU/h 14,500 BTU/h Heating Capacity - 10,900 BTU/h 12.500 BTU/h 15,000 8TU/h SEER 10.59 9.9 9.7 9.1 COP - 3.04 2.90 2.85 1. NEW "I F E U CONTROL" IN OUR LCD WIRELESS REMOTE CONTROLLER Mitsubishi Electric's new wireless remote controller incorporates a number of advanced features that provide even greater control and ease-of-use. It has a liquid crystal display which indicates such information as mode, fan speed and temperature selected as well as the timer setting and time remaining. It is also equipped with "I Feel Control", a unique Miibishi Electric feature that allows the user to adjust the temperature to exactly the level he or she wants simply by tapping the button that describes present conditions : -To Cool" "Too Warm", or "Okay". The optimum temperature set this way is then memorized for immediate recall whenever the air conditioner is used again. And what's more, the new controller has been made more compact and easy to handle than even before. 2. A VARIETY OF MICROPROCESSOR-CONTROLLED FUNCTION Auto Stop Mode Automatic ON/OFF Timer Convenient timer function includes Auto Start, Auto Stop, both can be set 1-12 hours. Auto Stop (Night Setback) Mode. This mode raises (or lowers, when heating) the temperature setting by 1'F after one hour, and by another 1°F every half hour thereafter. When two hours have passed, the air conditioner is running at a setting that is 2°F higher, thus preventing excessive cooling. Maximum temperature difference is 4°F for heating. ~ u t o m a t i cFan ' Speed Control When there's a large difference between the set temperature and existing room temperature, the fan speed automatically adjusts to HI to either cool or heat the room quickly. As the temperature differential decreases, the Fan Control shifts down automatically to MED and LO. Operation is almost whisper quiet. L . ' Stan 1 - I S . 2 I Automatic Fan Soeed Control 8(YF , , Wurt --------------------------- kRmrn- .-- 7WF ------ Hot Start System Heating always begins comfortably with warm air, since the Hot Start System prevents cold air from being blown out at the start of heating and during defrosting. (All heat pumps.) Booster Heater for Fast Warm-up. Microprocessor controlled-Booster Heater automatically hastens the heating process to quickly warm up a room, and thereby eliminates unnecessary energy use that occurs during prologned heating. (All heat pumps.) Automatic Change Vane System The Automatic Change Vane System will automatically set the vane in a horizontal positiolifor cooling. During heating when the hot air is blowing strongly enough, it will automatically adjust downward. The angle of the vane can be adjusted with the Remote Controller. (MSH-12/15DN) Adjustable Change Vane System Choose the air direction that suits your needs. To achieve uniform aimow for heating, adjust the louver downward. For cooling, keep it in a horizontal position. (MS(H)-O9DW) During heatiyl Restart Function (Optional) The restart function restarts the equipment when power is restored following an outage, selecting as required either cooling or heating operation at a fixed temperature setting of 75F. (MS-OgDW, MSH09DW, MSH-12/15DN) High Performance Rotary Compressor The advanced design of Mitsubishi Electric's powerful and energyefficient rotary compressor results in lower operating costs and a longer service life. 1 During cooling+ C 3 . EASY OPERATION BY LCD WIRELESS REMOTE CONTROLLER Once the controls are set, the same operation mode can be repeated by simply turning the POWER SW on. When batteries are replaced all of the controls memories should be canceled and "I FEEL CONTROL" mode is automatically selected. I 7 1 k Sends sianal to control the air conditioner. the signal is send t o indoor unit. F lndicates the selected 1 lndicates FAN mode is only for straight COOLING TYPE (MS-O9DW) p the selected I FAN speed @Button raises the temperature @Button lowers the temperature lndicatesthe timer mode 1 I 1 '00 COO! , OKAY , TOO WARY 1 II 1 A selector for automatic ON/OFF of the air I conditioner. NORMAL : Continuos operation regardless of the timer setting AUTO STOP : 12hr Automatic OFF Timer AUTO START : 12hr Automatic ON Timer time and displays the remaining time in timer E e this Button to set the time for timer control operation. @ : Increase by one hour each @ : Decrease by one hour each time the Button is pressed I - operation of the unit, the desired temperature can be changed by pressing the folThe desired temperature will from the current room temperature. COOL increase by about 2'F-4°F O K n ~ The present temperature will be IA Button t o change the AUTO VANE direction. I II I Switch to the air conditioner power ON/ Turns ON when pressed once and tums I memorized by microprocessor. The desired temperature will from the current room temperature. WARM decrease by about 2'F-4°F *This instruction uses MSH-12DN LCD wireless remote controller. 3 SPECIFICATIONS i - 'L MODEL - ITEM ' Capacities - 1 47' *' -COP -INDOOR UNIT - External finish Power supply - Max. - fuse size (time delay) - Min. ampacity Fan motor -Auxiliary heater - W W 8,800 1 10,900 (14,300) 55 Airflow Lo-Me-Hi (17') F.L.A. A(kW) CFM CFM in. I in. I in. in. Ibs. V,Phase,Hz A - power supply - Max. fuse size (time delay) - Min. ampacity F.L.A. Model Winding resistance (at 68°F) R.L.A. L.R.A. Compressor - --Refrigerant control - Defrost method Dimensions , - Weight 0.5 I - 0.4 lbs. in. ft. h. Heating - 29 MUH-OSDW-U1 Munseil 5Y 6.5/1 115,1,60 I 15.0 13.5 20.0 16.0 0.8 KH419WAD C-R 0.95 C-S 5.18 10 37 RHS135WAE C-R 0.79 C-S 4.1 5 12 42 Capillary tube I Reverse cyde 29-15/16 9-1/16 71-1/4 -. ., . I 73 W~relesstype 12V DC Not supplied (optional parts) 1/4 3/8 -. . Flared Flared Max. 16 Max.33 Operating Range Coding I I 26 MU49DW-U1 (heating) - lndoor : 7WFDB. 60'FWB. Outdoor : 47'FDB. 43'FWB *2.Rating cond'ions (heating) - lndoor : 7WFDB, W W B , Outdoor : ITFDB, 15'FWB *3.Hming capacity and power consumption in ( ) include auxiliary electric heater operation at 115V. lndoor air intake temperature 90FDB, 71'FWB 67'FDB, 57'FWB EKYFDB, 67.AWB 7WFDB. 6WFWB 8.7(1 .O) 5/8 33-1/2 5-1/8 15 * 1.Rating condiins (cooling) - lndoor : 8WFDB. 67'FWB. Outdoor : 95'FDB, 75'FWB Maximum Minimum Maximum Minimum 12.0 170-220-265 1!50-190-235 in a,,. U I , I 3.04 (1.811 MSH-OSDW-U1 170-220-265 150-190-235 in. in. REMOTE CONTROLLER Contml voltage (by built in transformer) REFRIGERANT PIPING ' Liquid Pipe size Gas Indoors Connection method Outdoom Between the indoor Height difference Piping length & outdoor units Notes 1 Woodgrain or silky White 115,1,60 15.0 W D ,.--. 9.8 f9.91 V, Phase, Hz A D H - Fan motor Yur MS-OSDW-U1 - Cond. drain conn. ODI W - Weight UNIT - OUTDOOR - External finish I - *2 Dry I wn Dimensions 10.5 - f10.591 . .v--,., --a. h - MSH-OSDW-U1 I - -F F R * ~I4FFRl - II 9,000 p p Power consumption - BTU/h I BTU/h 1 Cooling * l Heating 47' * Heating 17' * Cooling* Heating 47 Heating 17' * 2 MS-OSDW-U1 Outdoor air intake temperature 115'FDB 67'FDB 75FDB. 6FFWB 17'FDB. 1GFWB 79 i - - - MODEL ITEM Cooling *' ' Heating 47"* Heating 1 7 " * ~ Cooling* Heating 47" * Heating 17"*2 Capacity ' - Power consumption ' EER*' (SEER) COP 47"' 117") INDOOR UNlT External finlsh Power supply Max. fuse size (time delay) Min. ampacity Fan motor Auxiliav heater 1 1 Airtlow Lo-Me-Hi *2 Dv Wet Cond. drain conn. OD Dimensions ' 1 BTU/h BTU/h BTU/h W W W W D H MSH-12DN-U1 11,8OO/12,5OO 14,000/14,500 12,000/12,500~17,100/177600)*3 14,400/15,000(19.500/20.100)*3 6,240/6,500(11,340/11 .600)*3 8,600/9.m(1 3.700/14,100)*~ 1,270/1,300 1,550/1.600 1,220/1,260(2,720/2,760) 1,480/1,540(2.980/3,040)*3 1,020/1,060(2,520/2,560) 1,280/1 .340(2.780/2.840)*~ 9.0/9.0 (9.1/9.11 9.3/9.6 [9.5/9.7) 2.85/2.85 (2.0/2.01 2.9/2.9 [1.8/1.81 MSH-I2DN-U1 MSH-15DN-U1 Woodgrain or silky White 115,1,60 20.0 I 16.8 17.0 I V, Phase,Hz A F.L.A. A(kW) CFM CFM in. in. in. in. Ibs. Weight OUTDOOR UNIT Extemal finish Power supply V.Phase, Hz A Max. fuse size (time delay) Min. ampacity FLA Fan motor Model Windtng reststance (at 68°F) il Compressor R.L.A L RA Refrigerant control Defrost method W tn in D D~mensions H in Ibs. Weight REMOTE CONTROLLER Control voltage (by built in transformer) REFRIGERANT PIPING Liquid in. I Pi~e size I I .. Connection method Between the indoor & outdoor units Notes MSH-15DN-U1 I 0.5 I 310-380-470 270-330-420 I 37 MUH-12DN-Ul I 15.0 12.0 Cooling Heating - - 04 RH-231NAB C-R 1.73 C-S 3.25 10.0 34.0 Capfllary tube Reverse cycle 33-1/2 11-7/16 23-7/8 104 Wtreless type 12V DC Not supplied (optional parts) .. 1/4 . 1- Flared Flared Max. 16 Max.49 h. h. lndoor air intake temperature SWFDB, 71'WB 67"FDB. 57'FWB WFDB, 67'AWB 7VFDB, 6OFWB 20.0 13.0 RH- I89NAB C-R 2.07 C-S 3 . M 8:8 30.0 Operating Range Maximum Minimum Muxirnum Minimum 37.5 MUH-15DN-U1 Munsell 5Y 6.5/1 208/230,1,60 * 1.Rating conditions (cooling) - Indoor : 8CTFDB, 67'FWB. Outdoor : 95'FDB. 7 5 ' M B (heating) - lndoor : 7CTFDB. GOFWB, Outdoor : 47'FDB, 43'WB * 2.Rating conditions (heating) - lndoor : 7CTFDB, 6CTFWB. Outdoor : 1TFDB, 1 5 ' M B * 3.lndudes auxiliaw electric heater operations 115V. . 280-340-400 250-300-360 5/8 39-3/8 7 14-3/16 Indoors Height difference Piping length 0.4 13.0 (1.5) Outdoor air intake temperature 11S'FDB 67'FDB 75'FDB. 6 5 ' W B 17'FDB. IVFWB I DATA 1. PERFORMANCE CURVE Cooling capacity SHF at rating condition = 0.71 Airflow = 265 CFM Bypass Factor = 0.1 15 Outdoof D.B entering temp.rF) Cooling capacity Heating capacity SHF at rating condition = 0.68 Airflow = 265 CFM Bypass Factor = 0.1 1 Airflow = 250 CFM 70 70 15 Outdoor D.B entering temp. 6 25 35 45 55 Outdoor W.B entering temp. ('F) Heating capacity Airflow = 470 Outdoor D.8 entering temp.rF) Outdoor W.B entering temp. ('F) Heating capacity Ai* = 400 Outdoor D.6 entering temp. ('F) Outdoor W.B entering temp. ('F) 2. OPERATING RANGE (1) POWER SUPPLY I I Indoor unit Outdoor unit I Models ( MSH-O9DW MSH-12DN Rating Guaranteed voltage I 115V 1 phase 60Hz Min. 103V- Max. 127V t MU-O9DW MUH-O9DW MUH-12DN MUH-15DN Min. 198V - Max. 253V (2) OPERATION Function 1 Indoor Entering air temp. Condition Standard temp. Outdoor DB ('F) WB ('F) DB ("F) 67 80 WB ('F) - 95 Maximum temp. 95 71 115 - Minimum temp. 67 57 67 - I i I Cooling Maximum humidi I Heating - 78% I I 43 60 47 70 60 17 15 80 - 75 65 High temp. 70 Low temp. (Minimum temp.) Maximum temp. 1 La 3. OUTLET AIR SPEED AND COVERAGE RANGE I Model Function / Airflow ICFM) / (8) DV 400 15 26 Wet 360 14 24 MSH-15DN- (U1I .The air coverage range is the value up to the position where the air speed is 1 ft/sec. when air is blown out horizontally from the unit properly at the High speed position. The coverage range should be used only as a general guideline since it varies according to the size of the room and furniture installed inside the room. Air speed Covera e (ft/sec) /range m 4. ADDITIONAL REFRIGERANT CHARGE (R-22 I I Model Outdoor unit precharged (up t o 25 ft) (02)) 1 I Refrigerant piping length (one way) 25 f t 3 0 ft 33 ft 2 Ibs 12 oz 0 1 1 MSH-O9DW- lUll 3 Ibs 0 3 5 Model Outdoor unit precharged (up to 25 ft) I - MS-O9DW- a MSH-12DN- jU1J 3 Ibs 1 2 0 ~ MSH-1SDN- 3 Ibs 8 oz I Refrigerant piping length (one way) 25 ft 3 0 ft 3 5 ft 4 0 ft 4 5 ft 49 f t 0 3 5 8 11 13 5. MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE I Model length (ft) Height difference (ft) (A) Additional piping Max. length A * It does .not matter whether the indoor unit or outdoor unit is higher. 9 M~del MS-WDW-U1 ('h=N M n g Cooling Heating BTU/h 9.000 8.800 10,900(14,300) - 0.71 0.68 SHF Total I I kw I I Input 0.86 amit I input - kw I 0.04 0.04 I 0.04(1.04) 0.4 Am. heater wnwt A - - I MUH-OSDW-U1 115.1.60 115.1.60 0.82 I 0.86 I 1.01 A 6.5 6.7 8.1 Fan w m t A 0.8 0.8 0.8 Condensing pressure PSlG 263 246 263 Suction pressure PSlG 80 93 60 Discharge temp. 'F 186 192 187 Condonsing temp. 'F 102 104 110 Suction temp. 'F 52 60 36 Comp. shell bottom temp. 'F 163 188 174 Refrigerant charge ft 25 25 - 2ibs 1202 31bs Entering DB 'F 80 air temp. WB 'F 67 Discharge air temp. DB 'F 66 I WB - Fan speed Airflow (Hi) DB Entering air temp. WB Fan speed Airflow 67 60 56 114 ss 55 - R.P.M. 1,680 1,780 1,770 CFM 265 265 265 'F 95 95 47 I 'F I 'F - R.P.M. 710 710 CFM 920 920 - - 43 710 920 POWER SUPPLY 5V INDOOR UNIT I I 'i-i' OWER SUPPLY 115V 1phase.60Hz I 70 80 I I 8.7 MU-OSDW-U1 kW I I 0.4 Cornp. w m t Ref. pipe length outdoor side I 115 0.4 I Input 1.05(2.05) I A Outdoor nit I 115 Fan current Power supply (V.Phase.Hz) Rcircuit 0.9 - MSH-OSDW-U1 115 h w e r ~ p p h (V. / Phase. HZ) Electrical I MS-OSDW-U1 lndoa writ I MSH-OSDW-U1 Unit Item MSH-WDW MSH-12DN MSH-15DN Power supply voltage to serial signal circuit is 24V DC. Between Ul and B;I on in-out terminal bed should be 12V DC. I i I Model I kern ~pacitY Total - I kW Input Power supply (V, Phase, Hz) I 115.1-60 I kW 1 0.06 A I 0.5 - - - I - I A 1 5.5/5.0 0.4 2OW230.1-60 5.3/4.9 1.44/1.50 1.51/1.56 1 6.9/6.5 1 6.6/6.3 0.4 Condensing pressure PSlG 267 252 269 259 Suction pressure PSlG 72 60 71 54 Discharge temp. 'F 192 190 194 186 Condensing temp. 'F 122 118 122 120 Suction temp. 'F 55 40 50 29 Comp. shell bottom temp. 'F 183 179 180 169 ft 25 - 25 31bs 1202 31bs 802 DB 'F 80 70 80 70 WE 'F 67 60 67 60 Discharge air temp. D8 'F 59 96 57 103 WB 'F 57 69 55 72 1.m 1.fxo 1.500 470 360 400 R.P.M. Fan speed 1.m 470 CFM Entering air ternp. I I I ~R.P.M.~ Fan speed - CFM Airflow 860 1,270 1,270 POWER SUPPLY MSH-12DN MSH-15DN 'I 2 wire 12V DC* POWER SUPPLY 208/230V, 1phase, 60Hz OUTDOOR UNIT I I 860 I 1 I Entering air temp. Airflow (Hi) I 13.0 MUH-15DN 1.16/1.20 1 0.04(1.54) 0.4 Ref. pipe length Outdoor side I 0.4 0.4 Refrigerant charge Indoor side 0.04 0.4 - ' I A Fan current . 0.5 13.0 1.21/1.24 kW I Comp. current Refrigerant circuit O.OS(1.56) 208/230- 1-60 Power supply (V, Phase, Hz) I MSH-15DN MUH-12DN Input (i%$E) 1.55/1.6 115.1.60 I Outdoor unit I I I - A Heating 14.030/14,500 0.71 (E%66) 1 MSH-12DN I I Coding I I Fan current Aux. heater current Electrical circuit 1.27/1.3 MSH-15DN-U1 p p I Input - Heating 1 11.800/12.500 0.72 I 1-Indoor unit 1 ICooling - SHF - unit I MSH-12DN-U1 I 860 860 1,270 1,270 I I 1 OUTLINES & DIMENSIONS MODEL : MS(H)-O9DW- IU1/ INDOOR UNlT 1 10-11/16 Unit : inch 4 12-5/8 ]\ Wall hole st Liquid line +1/4, 19-1 1/16 in. Gas line +3/8, 16-3/4 in. Insulation O.D. 6 1 2/16 Air outlet MODEL : MU(H)-O9DW- lUll OUTDOOR UNlT REQUIRED SPACE Drain hose 45/8 Insulation 0 . D. 4 1-3/ 16 I.D. 47/8 Ti? Air intake Air &et / Refrigerant pipe (Flared) 13/8 a MODEL : MSH-1ZDN MSH-15DN INDOOR UNlT - Unit : inch 3-1/2 L Indoor unit ' ---- I : Installation plate 15-1/8 15 . Wall hole 43 39-3/8 t 1 Installation +7-4-@plate Drain hose 45/8 --Wireless remote controller l-iFh la 3 insulation &7/8 Air outlet REQUIRED MODEL : MUH-12DN MUH-15DN OUTDOOR UNlT a Air intake n Air odeti). L 4 Installation anchor hdes 3 / 8 13/16 ~ 33-1/2 nit center 13 CIRCUIT DIAGRAM -. -I11: t. . ' MODEL MS-OQDW-rn WIRING DIAGRAM SKELETON WIRING DIAGRAM pimmil pimzzq 7 - MODEL MSH-OSDW-IU11 WIRING DIAGRAM SKELETON WIRING DIAGRAM pGEiq piEmKJ SYMBOL^I NAME C11 INDOOR FAN CAPACITOR C61 COMP. CAPACITOR C65 O W O R FAN CAPACITOR ISYMBOL~ I MF61 I NAME OUTDOOR FAN MOTOR (INNER PROTECTOR) NR11,61 VARISTOR RT11 ROOM TEMP. THERMISFOR NAME SYMBOL T I 1.61 Xll-14 X62 TRANSFORMER INDOOR FAN RELAY R.V.COIL RELAY DSAR 11 INDOOR SURGE ABSORBER FIT12 INDOOR COIL THERMISTOR X63 SOLENOID COIL RELAY DSAR 61 OUTDOOR SURGE ABSORBER RT13 HEATER CONTROL THERMISTOR 21R SOLENOID COIL RT61 DEFROST THERMISTOR 2154 R.V. COIL RT62 DISCHARGETEMP. THERMISTOR FS THERMAL FUSE (282'F 10A) F11.61 FUSE (LA) - H MC MFl HEATER SEMI CONDUCTOR RELAY COMPRESSOR MOTOR TB1,3 INDOOR TERMINAL BED INDOOR FAN MOTOR (INNER FUSE) TE2.4 OUTDOOR TERMINAL BED 52C COMP. CONTACTOR 88H HEATER CONTACTOR - SKELETON WIRING DIAGRAM POWER POWER SUPPLY SUPPLY 115V 208/230\1 60Hz SlMsOL C1l NAME SYMBOL INDOOR FAN CAPAMTOR C61 COMP. CAPACITOR C65 OUTWORFAN CAPACITOR INDOOR SURGE ABSORBER OUTDOOR SURGE ABSORBER F61 . FS ~RISi378FlW Fl1 INDOOR FUSE UlU H MC MFl MF61 MV NRl1 NAME 60Hz NAME SYMBOL SYMBOL NAME X64 OUTDOOR FAN R E L N TB1.3 INDOORTERMINALBE0 21S4 TB2.4 OUTDOOR TERMINAL BED NU61 OWDOORVARlSrOR SWl HEATER RTtl COMPREWR MOTOR RTlZ ROOM TEMP. THERMISmR INDOOR 'OIL THERMISTOR VANEMOTOR INDOOR VARISTOR NAME VANESWITCH SYMBOL OLITWOR F U S E ( W INDOOR FAN MOTOR (INNER FUSE) OUTDOOR FAN MOTDA (INNER PRorrCmR) 1 w T11.61 ~ TRANSFORMER ~ R o L RT13 ~ RT61 %!%?&OR RT62 ~ ~ ~ ~ M ~ $ & w ' X16 VANE MOTOR RELAY SSR61 &W:aR RuAY X62 R.V. COIL RELAY ~ ~ ~ INDOOR FAN RELAY R.V COIL THERMAL OVERCURRENT RELAY 52C st> COMP.MNTACTOR HEATER CONTACTOR Fl REFRIGERANT SYSTEM DIAGRAM Indoor unit 1 Refrigerant pipe 63/8 (Option) (with heat insulator) Fusible plug 1 $allvalve connection \ Room t e m d I I Accumulator - efr,gerant pipe 1/4 Ball valve Capillary tube (60.12 x (6 1/16 x 47-1 /4 with senrice (Option) (with heat insulator) POrt Refrigerant pipe 63/8 (Option) (with heat insulator) 4-way valve -- Flared connection thermistor RTl 1 II Compressor ( I- R.V. coil heating ON cooling OFF 2-way --..(Option) (with heat insulator) polt) - 40.12~1/16~35-7/16 Strainer a low of refrigerant i d i n g ) ---*Flow of refrigerant (heating) --- Heater control thennintor RT13 Room temp. themiistor RTl 1 Flared connection (Option) (with heat insulator) port) - - Capillary tube MSH-12 : 60.12xd1/16~3-15/16 MSH-15 : 6 0 . 1 2 x ~ 0 . 0 7 1 ~ 3 - 1 5 / 1 6 ----. Flow of refrigerant (cooling) Flow of refrigerant (heating) Wireless Remote Controller SENDING SECTION-) Once the controls are set, the same operation mode can be repeated by simply turning the POWER switch ON. MASTER CONTROL Indoor unit receives the signal with a beep tone. bunon When the system turns off, "3 min. tim&elay function" will operate to protect system from over load and compressor does FAN CONTROL not restart before 3 minutes. LCD INDICATOR bunon SET TEMP. bunon TIMER CONTROL bunon TIME S€lTtNG bunon VANE CONTROL I FEEL CONTROL bunon TOO COOL OKAY TO0 WARM bunon -Con 1. "I FEEL CONTROL" operation (1) Press POWER button on the remote controller. Power lamp of the indoor unit will tum on with beep tone. (2) Select the MASTER CONTROL button to "I FEEL CONTROL". And I FEEL MONITOR lamp lights with beep tone. (3) The operation mode is decided by the initial room temD. at startina - up . the operation. Initial Room Temp. POWER bunon COOL mode of "I FEEL CONTROL" 73'F to 76°F DRY mode of "I FEEL CONTROL" MGDW : 5 5 ' ~to 76F less than 73'F I HEAT mode of I MSH-09.12.15 1 "I FEEL CONTROL" I *Once the mode is fixed, the mode will not change by room temp. afterwards. *Under the AUTO START timer operation, the mode is determined according to the room temperature 1 hour before the set time. When the system is stopped with the POWER button on the remote controller, and restarted within 1 hour in "I FEEL CONTROL" mode, the system operates in previous mode automatically regardless of the room temp. more than 7 6 F I MSH-12/15DN- Q I INDOOR UNIT DISPLAY SECTION POWER When the system is restarted after 1 hour, the operation mode is decided by the initial room temp. at starting up the operation. DEFROST IDDOI MSH-09DW I FEEL MONITOR Example Previous operation I FEEL MONITOR I I COOL mode of "I FEEL CONTROL" or COOL mode i OFF MSH-12/1IDN 9 1 hour I i Restart COOL mode of "I FEEL CONTROL" ON (4) The initial set temp. is decided by the initial room temp. within 2 min. after starting-up the system. I Mode Initial set temp. initial Room Temp. # 1 After the system restarts by the remote controller, the system operates with the previous set temp. regardless of the initial set temp. E2 By room temperature compensation of 4 deg, room temperature of a living space is 75°F. (5) 1 FEEL CONTROL buttons In "IFEEL CONTROL" mode, set temp. is decided by the microprocessor based on the room temp. In addition, set temp. is controlid by I FEEL CONrROL buttons when you feel too cool or too warm, and when you feel comfortable the & button foces the comfortable temp. When the I FEEL CONTROL bunon is pressed, I FEEL MONITOR lamp on the indoor unit pulsates for a second with beeps. Variable control 1W COOL TOO WARM When the 0 or 0 button is pressed, the set temp. is changed based on the room temp. As the set temp. range is variable, this is called "Variable control". The variable control operates only in "I FEEL CONTROL" mode. In DRY mode of "I FEEL CONTROL". the set temp. range is fixed 2 deg ("F). + i e j--To raise the set temp 2 deg. OKAY - 5 deg. (.F) ..+To fix and memorize the comfortable present temp. 0 Too WARM...~o lower the set temp. 2 deg. 0 - 5 deg. ("F) Over shoot control when1=button (or'= button, when heating) is pressed one or two I FEEL MONITOR lamps light, the indoor unit operates to get lower (or higher, when heating) temp. than the set temp. temporarily ( 6 0 sec.) by the microprocessor control. This is called "Over shoot control". when1= button is pressed during COOL mode of "I FEEL CONTROL", the tempera6tre change is as follows. Room temp.---- 6 deg. - ('F) Set temp. MSH-09,12,15 When 100 COO' button is pressed during HEAT mode of "I FEEL CONTROL" the temperature change is as follows. Set temp. 6 deg. Set temp. range MAX. 5'F Room temp. button is pressed during COOL mode of "IFEEL CONTROL" an4 The over shoot control does not operate when 1W WARM button is pressed during HEAT mode of "I FEEL CONTROL". 20 - I FEEL MONITOR lamp on the indoor unit When I FEEL CONTROL button is pressed, I FEEL MONITOR lamp on the indoor unit pulsates with beeps and shows the temp. control condition. I FEEL MONITOR lamp \I \/ ,I Shows difference between Set temp. and Room temp. is more than 3 deg. ('F) During this condition, I FEEL button is not available. Wait for about 15 min. Shows dierence between Set temp. and Room temp. is 2 deg. 3 deg. ('F) The buttons are available. D D ~ Shows Room temp. is almost Set temp. The difference is less than 2 deg. ('F) The buttons are available. NOTE 0 During "I FEEL CONTROL" operation, thermostat (SET TEMP.) is not available. Use "I FEEL CONTROL" buttons to set temp. *Once the set temp. is set, the microprocessor memorizes the temp. and the system restarts at the same set temp. 88°F in COOL DRY HEAT mode of "IFEEL CONTROL". *The set temp. range is 61 0 When the main power is turned off, the settings are canceled. Set temp. will be initial set temp. again. See page 20. - COOL mode of "IFEEL CONTROL" - - D?@ - Compressor & Outdoor fan motor Indoor fan motor OFF ON j I OFF I Runs all the time in cooling mode NOTE Coil frost prevention during COOL mode of "IFEEL CONTROL" .When the indoor coil thermistor RT12 is below 47'F for MS-09, 37'F for MSH-09, 27'F for MSH-12/15 for 5 min. the coil frost prevention mode starts. The compressor stops for 5 min. and the indoor fan runs at set speed. The coil frost prevention mode may continues past 5 min. untill the indoor coil thermistor RT12 exceeds 47'F for MS-09, 37'F for MSH-09, 27°F for MSH-12/15. The first 5 minutes, termination of Coil Frost Prevention is controlled by time regardless of the termination temperature. After that the termination is controlled by the temperature regardless of time. Therefore, Coil Frost Prevention continues at least 5 minutes even if the temperature reaches termination point within 5 minutes. After 5 minutes, Coil Frost Prevention terminates if the temperature reaches to termination point, or the mode will be prolonged untill the temperature reaches to the termination point. Indoor fan operates at the set speed by FAN CONTROL switch. Followings are the fan speed in AUTO. 7 deg. ('F) .-HI Room temp. minus Set temp. : more than 4 MED Room temp. minus Set temp. : 4 deg. ('F) to 7 deg. ("F) 3 deg. (OF) ...--LO Room temp. minus Set temp. : less than 2 - DRY mode of "IFEEL CONTROL" The system uses the same refrigerant circuit as the cooling circuit for dry operation. The compressor and the indoor fan are controlled by temp. and by the microprocessor. By such controls, indoor Row amounts will be reduced in order to lower humidity without much room temp. decrease. The operation of the comp. and indoor fan is as follows on the next page. - -- Compressor operates by temperature control and time control. In the first 2 min. the system is FAN mode and the indoor fan operates at VLO speed. Then 2 min. later, the room temperature is read as the initial temperature. @Set temp. is controlled to minus 2'F as initial set temp. @When the thermostat is ON, the compressor repeats 8 min. ON/3 min. OFF cycle operation. When the thermostat is OFF, the compressor repeats 4 min. OFF/1 min. ON cycle operation. lndoor fan and outdoor operate in same cycle with compressor. Indoor fan speed is VLO. Operation Time Chart 1 1st ON Example Thermastet OFF ! Indoor fan VLO speed ON ON OFF ON OFF ON Outdoor fan cornpresrror : OFF j : i i 1 2 8rnin. : : OFF m ON : I OFF ON .., .,, ON : I .,.. .,. ., , * # I I , 7 i NOTE *Coil frost prevention during DRY mode of "I FEEL CONTROL" The operation is same as coil frost prevention during COOL mode of "I FEEL CONTROL" except the indoor fan speed is VLo. *In DRY mode of "I FEEL CONTROL", FAN CONTROL switch is not available. - HEAT mode of "I FEEL CONTROL" 1. Indoor fan speed control (1) Following are the fan speed in AUTO. Temperature condition Fan speed HI 7 deg. Room temp. minus set temp. : more than 4 7 deg. ..............................MED Room temp. minus set temp. : 2 3 deg. ............-..LO Room temp. minus set temp. : less than 2 (2) Cold air prevention control The defrost lamp lights by the fan control. The fan runs when the indoor coil thermistor RT12 temp. exceeeds 7TF, when the temp. is below 64F, the fan stops. (3) New warm air control. When compressor starts in heating operation or after defrosting, the fan changes the speed due to the indoor coil thermistor RT12 temp. to blow out warm air. After releasing of cold air prevention, when the indoor coil thermistor RT12 is 113'F or above, the fan speed shifts to the set speed. When the indoor coil thermistor RTI2 is less than 113F, the fan speed is controlled by time as below. Time condition Indoor fan speed less than 4 min......................... Lo 4 min. to 8 min. ........................ MED more than 8 min. HI The upper limit of the fan speed is the setting speed. If the thermostat turn off, this operation changes to flow soft control. (4) Flow soft control After a compressor turn off by the thermostat, the indoor fan operates at a lower speed than LO. NOTE :This speed is called Very Low (VLO) in this manual. When the compressor runs, the fan operates at the setting speed. Due to the cold air prevention control, the fan does not start until the indoor coil thermistor RTI2 temp. exceeds 72'F. (5) If turn off the POWER button during heat operation, the indoor fan operates for 30 sec. LO speed to eliminate heat. - - ............ C ........................ 2. High pressure protection During heating operation the solenoid valve for injection and the outdoor fan motor are controlled by the temperature of the indoor coil thermistor RT12 for excess rise protection of compressor discharge pressure. This high pressure protection control is as below. Outdoor fan Model ON OFF 121'F 126F MSH-OSDW 117'F 122'F MSH-12DN 127°F 133°F MSH-15DN High pressure protection time chart Indoor coil tlwmktw RT12 MSH-09 MSH-12 MSH-15 126F 722'F 733'F ' 121'F 117'F 127'F 115'F - - lnjmim m turn Outdoor OFFfan motor I Outdoor fan motor turn ON Injection sdenoid coil turn OFF injection sdenoid mii ON d wit Outdoor fan motor 11 ' NOTE : When the outdoor fan is off, the heating defrost is not detected bv the defrost thermistor RT61. Defrosting Outdoor unit defrosting is controlled by outdoor P.C. board, it is detected by the defrost thermistor RT61 and discharge temp. thermistor RT62. Defrost starting conditions When all conditions of a) -- dl are satisfied, the defrosting operation starts. a) Under heat mode of "I FEEL CONTROL" and heat operation, the compressor cumulative time exceeds the defrost interval. b) The defrost thermistor RT61 is below 27°F. c) After releasing the high pressure protection of the outdoor fan operation, 180 sec : MSH-OSDW or 256 sec : MSH-12/ 15DN elasped. d) Regarding MSH-12/15DN, discharge temp. ttiermistor RT62 is below 185°F. Defrost stopping conditions When the condition e) or f) is satisfied, the defrosting operation stops. e) The defrost thermistor RT61 is above 37°F. f) The defrosting time exceeds 1 0 min. The defrosting operation stops forcedly by timer. Defrost interval The defrost interval is calculated by defrosting time. 1. After starting of heating operation, the first and second defrost interval are fixed t o 6 0 min. 2. From the third interval, it is calculated so as that defrost time is 2 min. Time I underDefrost 2 min. - 2 -- 3 min. 3 4 min. I Defrost Interval Previous interval plus 1 0 min. Same as previous Previous inteml minus 1 0 min. Previous interval minus 2 0 min. over 4 min. 3. Max. and Min. of Defrost Interval Max. Mode Min. 1 MSH-OSDW I MSH-12DN MSH-I5DN 120 min. 4 0 min. 2 0 min. I Defrost time chart Defrost thermistorI - * 37'F I - . 2 min. I I I I I I 4 deg. Set temp. I I I f ! 1 I ON I I I I I I I Defrost lamp -pressor - I I I OFF ! I I I I 1 I I I ON ON j , 8 II I w I , I ,, I I I I OFF I I I I I I I R.V coil ON I I i r I ! Max. 10 min. I I I I t , I I I 1 I I I I I I I I I I I I I Outdoor fan motor I I, I I 1 I I I I 8 1 1 I I I I I I ' I I I I I I I I I 8 Ia I I I I @&on sobndi coil I I I I , I I I I indoor fan motor ON I I I I I II I I I I I I tI I I , I Defrost counter I I I OFF I - I 8 Defrost preoperation Auto vane position I , I I : -I I I I I I I : 1 8 I I I I 0 I t I i I 1 c I I ' ' I New warm ;* I ; I : 4 I I I 1 air control I ; , I I I I I I I i I 1 1 :I # 1 I I I 1 , 1 I I I I I I I I I f I I I : I I . I I I I I I I I (2) ; I I I I ! 1 I I 1 * I : I I a , I - Cold air. M m P ---------- :---- l i ' ! I I iI iI ON I , I II I I I I I I !OFF I II I o Defrost interval 1 I ' I I (2) I I I I 1 1 I i , I I I I The vane is controlled by indoor thermistor RT12 after this line. i 4. Heater control (1) When all listed conditions are satisfied and 3 0 sec. elasped, power is supplied to the heater. O l n heating mode @Indoor fan speed is faster than LO. @Room temp. thermostat is on. @By temperature of Heater control thermistor RT13 ON OFF (Heater ON/OFF) 131'F 140F MSH-O9DW 142'F 151°F MSH-12/15DN @By differential between set temp. and room temp. 5 deg. ('F) : ON, below 4 deg. ('F) : OFF @Not in heating defrost mode (2) If one of above conditions are not satisfied, the heater tums off. owhen system is stopped by pressing the power button, the indoor fan operates for 3 0 sec. in LO speed to eliminate the remaining heat. owhen the room temp. thermostat is off, the indoor fan operates at VLO (Very LO) speed. (3) Power is not supplied t o the heater under following condition even if ail above condions are satisfied. o w e n the in&mr coil, thermistor RT12 is over 1 0 4 F and the heater control thermistor RT13 is disconnected. 5 . Discharge Protection When the discharge temp. is too high because of unit gas leakage or other reason, the discharge temp. thermistor RT62 stops compressor in order t o protect compressor from burning. MSHO9-DW MSH-12DN Discharge protection operates in "I FEEL CONTROL", COOL, DRY, and HEAT mode. 2. COOL operation (1) Press POWER button. Power lamp of the indoor unit tums on with a beep tone. Indoor fan continues to operate regardless of thermostat's OFF-ON. Coil frost prevention is same as COOL mode of "I FEEL CONTROL". (2) Select COOL mode. (3) Set the SET TEMP. button. The setting range is 59 -- 89'F. *"IFEEL CONTROL" buttons are not available. 3. DRY operation (1) Press POWER ON/OFF button. Power lamp of the indoor unit tums on with beep tone. (2) Select DRY mode. (3) Indoor fan operates at VLO speed. (4) After 2 min. the microprocessor reads the room temp. and decides the set temp. Set temp. will be as follows. 65 70 75 80 85 Initial room temp. 90 95 Thermostat (SET TEMP.) is not available. The other operations are same as DRY mode of "I FEEL CONTROL". 100'F 25 4. HEAT operation (1) Press POWER button POWER lamp on the indoor unit tums on with a beep tone. (2) Select HEAT mode. DEFROST lamp on the unit lights during the cold air prevention control. (3) Press SET TEMP. button to select the desired temperature. The setting range is 59 89F. "I FEEL CONTROL" button are not available. (4) Indoor fan speed control, hight pressure protection, defrosting, heater control are same as HEAT mode of "I FEEL CONTROL". - 5. FAN operation MS-O9DW (1) Press POWER ON/OFF button. (2) Select FAN mode. (3) Press SET TEMP. button to select the desired temperature. The indoor fan stops when room temperature is lower than the set temp. (4) Select the desired fan speed. Followings are the fan speed in AUTO. 7 deg. --.HI Room temp. minus set temp. : more than 4 Room temp. minus set temp. : 2 -- 7 deg:.-.......--..-.---.-.---MED Room temp. minus set temp. : - 2 -- 3 deg....-........--...-..-LO 0 deg. --..STOP Room temp. minus set temp. : less than - 2 Only indoor fan operates. Outdoor unit does not operate. - 6. TIMER 1. AUTO STOP operation AUTO STOP mode has "SOFT SLEEP" citcuit which provides comfortalbe temperature control for sleeping. (1) Select the TIMER CONTROL to AUTO STOP. (2) Set the time. Time setting is 1 hour unit for 12 hours (3) "SOFT SLEEP" circuit operates in COOL and HEAT mobe. By this circuit, system operates at the set temp. for the first 1 hour. Then, in COOL mode the set temp. raises by 1 deg. haw- hourly to 2 deg. range and in heat mode the set temp. falls by 1 deg. half-hourly to 4 deg. range. In "I FEEL CONTROL" and DRY mode, the circuit does not operate. 2. AUTO START operation (1) Select the TIMER CONTROL button to AUTO START. (2) Set the time. Time setting is 1 hour unit for 12 hours. 13) In HEAT mode, warming up circuit operates. -- NOTE TIMER setting will be canceled by power failure Breaker Functioning. 7. AUTO VANE adjustment MSH-12DN MSH-15DN (1) The vane circuit / Auto vane direction position '2, The vane motor circuit 60' 90 : Auto vane direction (2) Vane control Automatic control (Auto vane lamp is on.) 0 During COOL operation The vane is at position '1 J initially power ON moves to position '2J retums to '1 J 0 During HEAT operation Power ON the vane moves to position '2J moves to '1 J ountil the temp. of lndoor coil thermistor RT12 rises to 97°F : position '1 J (on the indoor heat exchanger) owhen the thermistor temp is 97'F : changes position '1 J *'2J OUntil the temp. of lndoor coil thermistor RT12 falls to 86F : position '2J (on the indoor heat exchanger) owhen the thermistor temp is less than 86°F : changes position '2J -+'I J When contactor (52C) is off : position 1J 0 During defrosting : the vane is forced to return to position '1 J The indoor fan speed is VLO while the vane is working. + + -+ fixes on '1 J -+ + ' When thermistor (RT12) is 8.6F or below Comp. contactor (52C) is off. I 6W 90 '23 When Thermistor (RT12) is 97'F or above. lndoor coil Thermistor RT12 temp. EMERGENCY-TEST operation When the remote controller is missing, has failed or the batteries run down, set the emergency run selector switch on the front of the indoor unit to heat or cool and press the emergency run on/off switch. The unit will start and the operation lamp will light. The first 30 min. of operation will be the test run operation. This operation is for servicing. The indoor fan runs at high speed and the system is in continuous operation. The thermostat does not operate and the timer is reset to normal. After 30 min. of test run operation the system shifts to emergency run operation with a set temperature of 75°F in heating or cooling. The fan s h i to MED speed. This operation continues until the emergency run on/off button is pressed or a button on the remote control is pressed, then normal operation will start. The coil frost prevention circuit operates in this mode. - EMERGENCY RUN COOL I EMERGENCY ONIOFF button 9. AUTO RESTART FANCTION (Optional) How to restart units after power failure by Auto Restart. ONNErnOR NO. Model 1, MS-09DW- rn MSH-O9DW- rn MSH-12DN- [CTil MSH-15DN- QJ 1 CNl25 CN 105 CN107 1 MrnOD Short the connector 5 - 7 on the electronic control P.C. board for connector position, refer to page 38. 1 Short the connector 1 - 3 on the electronic control P.C. board. For connector position, refer to page 40 for model MSH-O9DWmodel MSH-12/15DNSet the emergency run switch to "COOL" or "HEAT" a. rnor page 43 for Operation When power is restored the unit will operate in the emergency-test run mode. Even if the unit is turned off at the thermostat, The heat or cool mode will be determined by the position of the emergency-test run it will come on after a power failure. selector switch. When a button on the remote contoller is pressed the unit will return to normal operation as the controller has priority. See page 27 for emergency-test run operation. lO.COMPULSORY DEFROSTING MODE FOR SERVICE Defrosting mode can be accomplished regardless of the defrost interval restriction by short-circuiting the connector (CN606) on the outdoor P. C. board which is located in outdoor unit. This compulsory defrosting mode should be started by the pulse based on the temperature sensed at the defrost thermistor * ( R T1~) . Therefore, as far as RT61 senses higher than 27'F, the compulsory defrosting mode connot be achieved. RT61 is attached to the outdoor heat exchanger. See page 42 and 45 for the position of the connector CN606. * Self check function This function is to show defective point by lighting or flickening of the indoor unit power lamp, defrost lamp, or "I FEEL" monitor lamp (monitor LED). If troubles written in the below table occur during operation, the self check result indicated. The abnormal point indication disappears by pressing the power on/off button of the remote controller and when the unit is on. *Before taking measures make sure that the symptom reappears, for accurate troubleshooting Self Check Table Abnormal point POWER DEFROST Serial signal :m. ' a: 1.When serial signal from outdoor unit stops for 4 -- 5 sec. Flash Cause Detect method Indication 1II: OFF Measures I lndoor Outdoor connection mis-wiring Indoor Outdoor connection disconnecting Connector rnisconnecting Indoor electronie control p.C. board defect Outdoor P. C. board defect Electrical parts defect Check wiring (Visual check and conductivity check) Check indoor board Check outdoor board Check electrical parts lndoor unit power 2. Detects lndoor coil thermis- @Thermistordefect Connector disconnecting tor short or open circuit turns off. Connector misconnecting every 2 sec. during operaindoor control P. C. board tion. defect Check thermistor charactor Reconnect connector Reconnect connector Check indoor board Compressor no 3. Detects Discharge thermis- @Thermistordefect Connector misconnecting rotating tor open : more than 10 Outdoor P.C. board delndoor unit min. later from compressor fect power tums off starting up. Detects Discharge thermistor short : During Compressor operation. Check thermistor charactor Reconnect connector Check outdoor board Outdoor unit does not run D D O I FEEL MONrrOR When serial signal stops for set. after Ist On Of 52C relay by POWER turning on. ' lndoor coil temp. thermistor Steady Outdoor thermistor (Discharge RT62) MS-09 has only N0.2 check function. ' (1) Operation does not start MS-O9DW MSH-OSDW lUll - - Check power supply voltage on indoor terminal bed. Is there 115V AC between indoor terminal bed ? No c Turn on power supply - Does+signal mark display for an instant on Remote Controller when POWER button pressed? No 1 \ Is Batteries voltage over 2.4V ? Yes No Does emergency run start by pressing EMERGENCY button 7 ----"-I tes Replace Remote I Chedc voltage of control circuit on Electronic control P.C. board. Is there IOV DC between connector for MSH-09. CNlOl (pow) @+) @-) for MS09, @+) @-I See the TEST POINT DIAGRAM VOLTAGE on page 38 for MS09, page 40 for MSH-09. - I \ Does indoor unit receive siganl with a beep tone when WWER button pressed ? . Replace Electronic control P.C. board. ko / I - I Redace Receiver board. Power P.C. board. * J 9 (2) Operation does not start. MSH-12DN MSH-15DN - -a "\ Check continuity of connector; when you check to voltage. 1 Check power supply voltage on indoor terminal bed. Is there 115V AC between indoor terminal beda-a? No Yes Power supply turn on . Check primary voltage of transformer on power P.C. board. ISthere 1 15V AC between connector ,CN204 @ - @ ? T * * No Check secondary voltage of transformer on power P.C. board. Is there 13V AC between connector CN204 No Check fuse. if no good, replace Fuse ( F l l ) . - Redace Transfonner(T11) Yes Does emergency run stan by pressing EMERGENCY button ? No m - @R EIecmxliicontrol P.C. board and power P.C. board. - signal mark display for an instant Does on remote controller when POWER button pressed ? No Replace the batteries. - Replace remote controller. I Indoor unit receive signal with a beep tone when WWER button pressed? I No Replace Receiverboard. i - (2) Outdoor fan does not operate (compressor operates) MSH-OSDW MSH-12DN MSH-15DN Below listed are not troubles 1. Heating defrost During heating defrost operation, the outdoor fan stops. Refer to defrost time chart on page 24. 2. High pressure protection During heating operation, when high pressure protectionworks the outdoor fan stop. Refer to high pressure protection tim chart on page 23. - lUl - lUl t Is ther 1 15V AC for MSH-09, 208/230V AC for MSH-12/15 between Mack - ~ t connector e CN711 of outdoor fan motor O Yes Check outdoor fan motor. w Q No (Coding) NO Heating operation ? I Yes (Heating) High pressure protection condiin Normal No Yes Defrosting condition r 1 Normal PI'* 3. Compressor does not operate (Indoor and outdoor fan operates) MSH-OSDW lUl MSH-12DN lUl MSH-15DN lUl - - [Noticel Check continuity of connector, when you check to voltage. Pn?ss EMERGENCY ON/OFF button 3 rnin. timedelay function operates Test mode operates for 3 0 min. Check voltage to Contactor 52C. Is there 12V DC between connector CN720 @-I on outdoor P.C. board ? No Replace OutdoM P.C. board a+) - \ I Yes I Check voltage compressor terminal. Is there 1 15V AC for MSH-OQDW, 208/230V for MSH-12/15DN W e e n compressor terminal C-R? + Check Contector 52C and thermal ovenxlW reiay. Ifnogoodr@-per*;. Compressor and outdoor fan do not operate (Only indoor fan operates) MS-OSDW- I I Press EMERGENCY ON/OFF button. 3 min. timedelay function operates. Test mode operates for 30 min. i isthere 115~~~bennreen&l - a o f outdoor terminal bed 7 No + Turn on outdoor Power ~ p p h / . Yes Check voltage to contactor 52C. Isthere12VDCbeMreenUJ-Cof outdoor terminal bed 7 No -P Check Contactor 52C. If no good repiace Contactor 52C. b Check continuity of indoor and outdoor unit connection. I No Isthere 12V DC between m+l indoor temdnal bed 7 - @-I Yes of ; No 1 No Check resistance of room temp. thermistor RT11. See the thermistor resistance on page 38. Yes t I 1 Replace Indoor ektrork control P.C. board. 1 b Replace Room temp. thermistor RTl1. i i 4. Heater does not work. (compressor and fan operate) MSH-OSDW IU;I1 - t Heating selected ? Is blow out air temp. 140' F for MSH-OSDW 151'F for MSH-12/15DN or below ? Is set temp, minus room temp. larger than 5°F ? Check voltage to heater. Is there 115V AC between heater connector - CJ] 7 Yes I t Is there continuity to fuse (FS) ? Replace fuse (FS) of heater assembly I Yes Is there continuity to heater (H) ? I / Check voltaae to heater contactor 88H for M S H - O ~ D W - ~or 1 88H1. 88H2, for MSH-12/15DN-Ul. Is there 12V DC betweeen heater contactor \ I No Yes Replace Electronic control P.C. board. I i Replace Heater contactor 88H or 88H 1, 88H2. Check resistance of heater control thermistor RT13. See the thermistor resistance on page 40, 43. I Replace heager (H) N m l 1 0 I Replace Heater control thermistor RT13. I 5. Heating operation does not work. (Cooling operation works) MSH-OSDW MSH-12DN MSH-1SDN I - JU11 - lUl - JU11 I Set the SELECTOR to HEAT. Ress the EMERGENCY ON/OFF button. Yes \ I Check voltage R.V. coil. Is there 115V AC for MSH-09. 208/23W AC for MSH-12/15DN betwem connector CN72 1 @ Q on wtdoor P.C. b o d 7 - Yes I I No b Replace Outdoor P.C. board. 3 RELAY OPERATION MS-O9DWMSH-O9DWMSH-12DN- DI MSH-15DN- I a AUTO or set speed For 2 min. is OFF, when DRY & DRY mede of I FEEL CONTROL VLO speed. system tum on first. ON * ON 3 min. OFF operation VLO links with 52C contactor. OFF Repeats 4 min. OFF 1 min. ON operation ON ON AUTO or set speed. OFF OFF VLO speed I HEAT & HEAT mode of I FEEL CONTROL MSH-09/12/ 15 ON FAN MS-09 AUTO or set speed OFF OFF OFF NOTE : When the compressor is OFF, "3 min. time-delay circuit" operates. COIL FROST PREVENTION mode are as follows 62C CONTACTOR THERMOSTAT MODE I OFF for minimum 5 min. after 5 min. pas- COOL & COOL mode of I FEEL CONTROL sed, remains off until indoor coil thermistor termination temp. When indoor coil thermistor temp. reach termination temp. it turns on. DRY & DRY mode of I FEEL CONTROL ...& Indoor fan relav mode 1 Indoor fan weed I I I HI i - LO VLO OFF Relav'tuming ON I X14 for MS-09 and MSH-09 X I 5 for MSH-12/15 I X12 Xl1 1 All fan relays are turn off Auto or set speed VLO speed I TEST POINT DIAGRAM AND VOLTAGE MS-OSDW@~~ Electronic contol P.C. board s.wr,, Themistor RTl 1 60 70 7780 90 Temperature ('F) I CN~OI POW1 3 - Auto restart conneaor Shorten the connector CN 125 betweeno-0 10V DC power supply of control circuit 5V DC reference voltage ----- dock signal circuit Temperature ('F) 100 MS-OQDW-/U11 Power P.C . board ll5V AC Indoor fan mator mltasa 1-aFan connector Electronic control P.C. board 4' 10V DC Power supply of control circuit ON : 12V DC Heater contactor OFF : OV DC Power P.C. board F - *I 1% f', s! :m ii - r' L ( .I l l 5 V AC Indoor fan motor voltage Defmst thermistor RT6 1 Discharge temp. thtWtllii RT62 R.V. wil ll5V AC Compulsory defrost terminal CN606 - Solenoid coil 115V AC Outdoor fan motor 1 15V AC BLK~BLK w1-1~21JBLKB Electronic control P. C. board 4uto restart mnector CN107 shorten me connector D-Q - -Room temp. thermistor RTl 1 - -Indoor coil thermistor RT12 - Heater control thermistw RT13 Discharge temp. mennistor RT62 Temperature CF) -IBLK BLKI R.V. coil 208/230V Outdoor fan motor 208/230V AC C INDOOR UNIT PARTS (WG,SW) MS-OSDW- a MSH L 1 L 1 VOL AZ8Z - WEIZL-MZS VB8Z 1-MZS 1 L L L L L 1 L L 1 1 1 L L L L 1 L L L 1 L Z 1 1 Z L 1 1 1 L 1 L Z L Z L L L Pl L 1 1 L L 1 1 1 Pl 1 1 1 1 1 L 1 1 1 L 1 1 1 1 1 1 L Z EBl 181 18 1 l!my l!l L L Z l 1 Z L L L 1 L 1 1 z L Z L L PL L L PL L 1 1 L L 1 1 L 1 L Z 1 H88 SJ H EL l t l Z lltl ZLltf 1L l U llltl 1 13 1 1 L 1 L PI 1 LX MX ilx W!L L LJ 1 LJW LLJW L Z Z L 1 MS syerua' DM ~n MS 1 DM Ln Ma6WHSW Ma6O-SW l!un/m t l 3 D N V H 3 H 1-H tlOOaNl tl3DNVH3H l V 3 H tlOOaNl t l 0 1 3 V l N 0 3 tl31Q3H 3SnJ l V W t l 3 H l tl31WH t l O l S I W t l 3 H l l O t l l N 0 3 831-H tlOlSIWtl3Hll103 kiOOaNl tlOlSIWtl3Hll103 HOOaNl tlOlSIWtl3Hl 'dW31 WOOtl tlOlSIWtl3Hl 'dW31 WOOtl tl0113VdV3 NVJ 8OOaNl a t l V 0 8 '3'd H3A1333tl a t l V 0 8 '3'd H311MS '8 AVldSla atlVO8 '3'd H U M S % AVldSla XOB d W V l (tl00aNI) a 3 8 lVNIWtl31 (tl00aNI) a 3 8 lVNIWtl31 (ti00aNI) a 3 8 lVNIWtl31 a t l V 0 8 ' 3 ' d tl3MOd CltlV08 ' 3 ' d tl3MOd tlOlSltlVA (VZ) 3SnJ tlOOaNI a t l V 0 8 '3'd l O t l l N 0 3 13313 a t l V 0 8 '3'd l O t l l N 0 3 13313 lNnOW DNltlW8 DNltiQ38 3,4331s NVJ M o l d 3 N I l NVJ M O l J 3NIl l N n O W 13388ntl UOlOW NVJ tlOOaNl tlOlOW NVJ tlOOaN1 a t l v n ~NVJ ( U S ) 3NVA 3CllflD A18W3SSV 3lZZON AlBW3SSV31ZZON 3SOH NlVtla 3 1 M d NOllVllVlSNI Al8W3SSV X 0 8 Al8W3SSV XOB (MS) 3NVA 3DNVH3 (DM) 3NVA 3DNVH3 tl3lllJ (MS) Al8W3SSV 13NVd l N O t l J (DM) A18W3SSV 13NVd l N O t l J (MS) A18W3SSV 13NVd l N O t l J (DM) Al8W3SSV 13NVd lNOUJ OZ9 OZ9 ZPE Z8E O8E 80E LO6 80E 80E LO& 09E 899 6ZE 6ZE 6ZE 9LE PLE 9LE OW OW 99P Z8E 0SP 09P 609 PO9 ZOE ZOE 909 OOE OOE 190 OW 9EZ 9EZ EOL 0L6 PEZ PEZ WO OtrO OOL 000 000 000 000 09P M Z l 9LP M Z l 69E M Z l OE 0 9 9 M Z l 6Z, 099 M Z l 8Z 9E9 M Z l LZ 8E9 M Z l gZ 6L9 M Z l 8E9 M Z l sZ 6L9 M Z l 9E9 M Z l PZ OON LZW EZ 9E9 M Z l ZZ 6L9 M Z l 9E9 M Z l LZ PES LZW OZ 9Z9 M Z l 6L9 M Z l 9E9 M Z l 81 6L9 M Z l 09P M Z l LL 9 19 M Z l 9 1 9E9 M Z l 6L9 M Z l 9EO LZW PL ZZ8 LZW E l OLE LZW h z1 0 8 9 LZN 9EO LZW 1 1 9E9 M Z l 0L 6L9 M Z l 6 009 MZI 9&9 M Z l 8 9E9 M Z l P9P M Z l 8LP lZW 9 OLE LZW 9 9E9 M Z l 6L9 M Z l L LP M Z l 9 LP M Z l 91P M Z l Z 9E9 M Z l 9E9 M Z l 6L9 M Z l 089 M Z l , ~use!a ~UUIM uoialeyg u! loql'J43 a t u e ~sued 'ON Wed 'ON OUTDOOR UNIT PARTS MU-OQDW lo. Parts No. Symbol in Skeleton wiring Diagram Parts Name Q'tylunit MU-09 MUH-09 DW-Ul DW-U 1 Remarks J 1 T2W 464 232 CABINET 1 1 M21 478 297 TOP PANEL 1 1 1 1 2 3 T2W 41 6 521 FAN GUARD 1 4 M21 A00 245 SERVICE PANEL 1 5 T2W 679 301 - OUTDOOR FAN MOTOR MF61 6 T2W 635 301 OUTDOOR FAN MOTOR MF61 7 M21 601 501 PROPELLER 1 M21 41 6 630 OUTDOOR HEAT EXCHANGER 1 M21 61 6 630 OUTDOOR HEAT EXCHANGER 8 . 1 1 1 - A - 9 T2W 457 641 CHARGE PLUG 1 0 T2W 460 374 OUTDOOR TERMINAL BED OUTDOOR TERMINAL BED 1 - 1 1 TB2 1 1 TB4 1 1 11 M21 534 375 T2W 464 340 T2W 460 340 13 T2W 635 465 14 T2W 680 353 COMP. CAPACITOR C6 1 1 1 1 15 I T2W 382 342 COMP. CONTACTOR 52C 1 1 16 I T2W 679 350 IL 1 / THERMAL OVERCURRENT REUY 1 THERMAL OVERCURRENT RELAY / OUTDOOR SURGE ABSORBER ( OUTDOOR MOTOR CAPACITOR I 1. I 51C I ( DSAR61 I 1 51C C65 I 642 19 T2W 636 389 2 0 T2W 636 488 SOLENOID COIL 21 T2W 460 661 VALVE (GAS) 1 1 22 T2W 460 662 VALVE (LIQUID) 1 1 23 T2W 460 246 VALVE COVER 1 1 A 2 4 1 M21 987 936 25 T2W 460 645 1 I 1 1I R.V. COIL CAPILLARY TUBE* I I 21S4 1 1 I 1 ' 1 I 1 I t 1 504 I I T92 1 T2W 502 453 464 290 T2W 460 290 BASE ASSEMBLY 28 T2W 41 6 509 OUTER NOZZLE 29 M21 478 644 SOLENOID VALVE 1 30 T2W 460 961 4 WAY VALVE 1 31 T2W 636 307 &" LI - - 1 1 COMPRESSOR ] M e 1 COMPRESSOR I BASE ASSEMBLY MC I 1 I 1 1 1 I I I R H S - 1 3 5 ~I~ ~ I IKH-419WAD 1 1 1 1 1 -* DEFROSTTHERMISTOR P 1 I I I T92 ] I 1 1 RESTRICTOR VALVE ASSEMBLY* 272 I I I 1 I 21 R II - 1 18 I T2W 41 6 I 30pF 330V 1 5/1F 250V 1 451 FUSIBLE PLUG -- 1 17 T2W 636 I -- 1 X62,X63,SSR61 T61.NR618F61 OUTDOOR P.C. BOARD i i RT61 1 / ' - REMOTE CONTROLLER MS-O9DWMSH-O9DW- f VJ I I No. 1 - Parts No. T2W 679 Parts Name 426 WIRELESS REMOTE CONTROLLER T2W 635 426 WIRELESS REMOTE CONTROLLER M21 N28 017 BATTERY COVER Symbol ~n ~keieton W~ring Diagram I Q'ty/unit MS-09 MSH-~~ DW-U OW-U I 1 1 1 1 1 I Remarks ACCESSARY PARTS MS-O9DWMSH-O9DW- a a No. Parts Name Parts No. Symbol n Sk@Fon MS-09 wnng Diagram . O'ty/unit lIW-Ul MSH-09 DW-U1 1 1 1 1 2 M21 478 919 MO1 t C,..nNTRnl RE"' ..,---..l FR ~011...--.-. ...HARDWARE PUTTY 3 M21 478 917 PIPING TAPE 1 1 4 M2 1 480 708 PlPE FIXING BAND 3 3 5 M21 480 973 PlPE HOLE COVER 1 1 6 M21 480 977 WALL HOLE SLEEVE 1 1 7 M21 480 703 DRAIN HOSE 1 1 M21 N28 083 Remarks 61 INDOOR UNIT PARTS MSH-12DN(WG,SW) MSH-15DN(SW) I svrnbo~I I I Q'n//unit Parts Name Parts No. 0.1 000 FRONT PANEL ASSEMBLY (SW) T2W 660 000 FRONT PANEL ASSEMBLY (WG) T2W 516 100 FILTER (SW) T2W 517 100 FILTER (WG) T2W 510 067 SCREW CAP (SW) T2W 51 1 067 SCREW CAP (WG) 970 INSTALLATION PLATE 1 234 BOX ASSEMBLY (SW) 1 2 . 3 - 1 1 T2W 659 1 1 1 1 1 3 3 3PCS set 3 - T2W 516 T2W 521 - 1 1 1 - T2W 522 234 BOX ASSEMBLY (WG) T2W 521 975 UNDER COVER (SW) T2W 522 975 UNDER COVER (WG) T2W 595 004 - T2W 516 620 T2W 538 620 1 1 1 1 PANEL COVER 1 1 INDOOR HEAT EXCHANGER 1 1 1 - 8 1 INDOOR HEAT EXCHANGER - M21 B19 750 WATER SHIELD 1 1 1 10 T2W 521 91 1 PIPE SUPPORT 1 1 1 9 3PCS set INDOOR UNIT PARTS MSH-12DN- IU7] (WG.SW) MSH-15DN- IU7] (SW) 1 I ~vrnbolI Q1ty/unit MSH-12DN m5h-1~ D 'N Skeleton U1 U1 Wiring D~agram SW WG SW In lo. Parts Name Pans No. 1 I t 235 NOZZLE ASSEMBLY (SW) T2W 660 235 NOZZLE ASSEMBLY (SW) T2W 521 703 DRAIN HOSE 1 T2W 516 040 VANE ASSEMBLY (SW) 1 T2W 517 040 VANE ASSEMBLY (SW) 4 T2W 516 041 VANE SPRING ARM HOLDER SET 5 T2W 659 303 VANE MOTOR T2W 521 042 GUIDE VANE SET (SW) T2W 522 042 GUIDE VANE SET (WG) T2W 521 302 LINE FLOW FAN T2W 659 300 INDOOR FAN MOTOR MF11 T2W 661 300 INDOOR FAN MOTOR MFll 1 2 3 6 7 8 9 1 M21 453 505 1 RUBBER MOUNT (MOTOR) 1 1 T2W 659 1 1 1 1 1 MV 1 1 1 1 1 1 1 I 1 1 1 1 1 S4W-26B-AA 1 1 2 / 2 [ 2 1 1 1 11 M21 BOO 509 BEARING MOUNT 1 1 1 12 T2W 659 339 TRANSFORMER 1 1 1 7 5 479 21 5 14 T2W 635 350 INDOOR FAN CAPACITOR C11 1 1 1 5 1 M21 534 375 INDOOR TERMINAL BED 163 1 1 1 15-2 T2W 659 374 INDOOR TERMINAL BED TB 1 1 1 1 . 1 6 , T2W 659 329 DISPLAY P.C. BOARD 468 171 ~ 2 NOO 1 1 HEATER CONTACTOR TI1 , I , 1 , l 1 1 1 g RECEIVER P.C. BOARD 320 SLIDE KNOB 1 1 1 19 T2W 659 443 SWITCH P.C. BOARD 1 1 1 2 0 T2W 659 782 SWITCH HOLDER 1 1 1 21 T2W 659 440 POWER P.C. BOARD 1 1 1 22 T2W 416 382 INDOOR FUSE 1 1 1 T2W 659 450 ELECTRONIC CONTROL P.C. BOARD 1 1 T2W 661 450 ELECTRONIC CONTROL P.C. BOARD 23 S4W-23 B-AA I 8 8 H l I 2 1 2 I 2 I 18 T2W 521 - - earn 1 SLEEVE BEARING 1 with micro sw an( 1 1 0 M21 BOO 504 3 Remahs F11 2A - 1 2 4 M21 N28 307 1 ROOM TEMP. THERMISTOR 1 I R T l l I l I l I l I 25 M21 N29 307 INDOOR COIL THERMISTOR RT12 1 1 1 26 T2W 659 307 HEATER CONTROL THERMISTOR RT13 1 1 1 27 T2W 659 380 HEATER H 2 2 2 28 T2W 659 383 THERMAL FUSE FS 1 1 1 1 378'F 15A OUTDOOR UNIT PARTS MUH-12DN MUH-15DN 9 I Symbol ( 0.1 Parts Name Parts No. 1 Q'ty/unit in I Dt,":L 1 / / M U H - ~ ~M U H - ~ ~ DN-Ul DN-Ul skeleton 1 T2W 510 232 CABINET 1 1 2 T2W 521 245 SERVICE PANEL 1 1 3 T2W 521 249 SIDE PANEL 1 1 4 T2W 521 509 OUTER NOZZLE 1 1 5 T2W 659 301 OUTDOOR FAN MOTOR 1 1 6 R01 093 115 PROPELLER 1 1 7 T2W 659 290 BASE ASSEMBLY 1 1 MF61 I T92 542 452 1 COMPRESSOR T92 660 452 COMPRESSOR T2W 521 630 OUTDOOR HEAT EXCHANGER 1 1 10 M21 975 961 4 WAY VALVE 1 1 1 1 T2W 460 662 VALVE (LIQUID) 1 1 12 T2W 521 661 VALVE (GAS) 1 1 13 T2W 457 641 CHARGE PLUG 2 2 14 T2W 416 642 FUSIBLE PLUG 1 1 T ~ W 572 - 353 COMP. CAPACITOR C6 1 T2W 500 353 COMP. CAPACITOR C6 1 8 9 Remarks S6N-50F-DA I MC 1 RH-189NAB 1 30pF38OV 15 1 25pF37OV 16 1 T2W 659 375 1 OUTDOOR TERMINAL BED 17 T2W 534 375 OUTDOOR TERMINAL BED TB4 1 .1 18 T2W 359 340 COMP. CONTACTOR 52C 1 1 19 T2W 659 451 1 OUTDOOR P.C. BOARD 201 T7W 867 242- 1 R.V COIL ] 1 1 I 1 22 1 ~ 2 275 1 642 TB2 I 21S4 DISCHARGE TEMP. THERMISTOR ( RT62 RESTRICTOR VALVE I I 2 1 M 2 1 N29 308 1 I I 1 1 1 1 I I ( 1 1 I I I 1 1 1 1 1 2 2 2 4 M21 987 936 CAPILLARY TUBE 1 1 25 M21 988 936 CAPILLARY TUBE M21 394 330 27 T2W 635 465 - , 1 THERMAL OVERCURRENT RELAY THERMAL OVERCURRENT RELAY OUTDOOR SURGE ABSORBER - - 1 ( 51C 1 I 1 I CAPILLARY TUBE 330 I I 936 657 VF-12HU DC12V251 1 23 M21 195 I FA21 1 I I 51C 1 DSAR61 1 1 40.12x40.055 1-29-1 7/32 40.12xq51/16 1-126 40.12 x 40.071 1-138 IMRA-98922 MRA-9892 1 28) ~ 2 N28 1 308 1 DEFROST THERMISTOR 'When servicing,cut the tube according to the length specified in the REFRIGERANT SYSTEM DIAGRAM. See page 18. 2= 1 I REMOTE CONTROLLER MSH-12DN- IU1J MSH-15DN- IU1J - 'i ' II - 100 COOL OKAY TW WARM 000 C !iYi!Q AMITSUBISHI ELECTRIC Symbol 40-1 in Parts No. Parts Name WIRELESS REMOTE CONTROLLER BATTERY COVER I Q'Q MSH-15 DN-U 1 Remarks Symbol Parts No. Parts Name lNO.l 1 I ~n Skeleton - Q'ty/unit 1 MSH-12 DN-UI 1 MSH-15 DN-Ul I I 1 1 1 1 1 1 PIPE FIXING BAND 3 3 PIPING TAPE 1 1 WALL HOLE COVER 1 1 1 1 , -*.*-----,-- BRAIN HOSE I I WALL HOLE SLEEVE REMOTE CONTROLLER MOUNTING HARD WARE PUTTY -- I -l Remarks OPTIONAL PARTS 1. REFRIGERANT PIPES The air conditioner has flared connections its indoor and outdoor sides. Please use the optional extension pipe as follows. Applicable models Parts NO. Pipe length / Pipe Size 0.D / (in.) cross-section A. Gas (in.) B. Liquid (in.) ln~~lation 1 6 ft MSH-OSDW MAC-852PI-US 23 ft MAC-853PI-US 33 ft R-22 bZ) I I MAC-85 1PI-US ~ s - 0 9 ~ ~ Additional refrigerant char e 3/8 1 for MS-09 5 for MSH-09 C 0 C 1-7/32 D 1-1/16 5 13 AMITSUBISHI ELECTRIC CORPORATION New publication, effective Jul. 1989. Specifications subject to change without notice. 3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications are subject to change without notice.