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.
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.
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.
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.
- - - 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.
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.
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.
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.
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.
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.
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.
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.
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).
CIRCUIT DIAGRAM -. -I11: t. .
- 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.
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.
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 --..
--- 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 ----.
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.
(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.
- 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.
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.
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.
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.
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.
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) 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.
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.
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.
(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.
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.
(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.
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.
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-C[]of 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 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.
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.
TEST POINT DIAGRAM AND VOLTAGE MS-OSDW@~~ Electronic contol P.C. board s.
MS-OQDW-/U11 Power P.C .
Electronic control P.C.
Power P.C. board F - *I 1% f', s! :m ii - r' L ( .
Defmst thermistor RT6 1 Discharge temp. thtWtllii RT62 R.V.
Electronic control P. C. board 4uto restart mnector CN107 shorten me connector D-Q - -Room temp.
Discharge temp. mennistor RT62 Temperature CF) -IBLK BLKI R.V.
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
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 .
REMOTE CONTROLLER MS-O9DWMSH-O9DW- f VJ I I No. 1 - Parts No.
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...--.-. ...
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 .
INDOOR UNIT PARTS MSH-12DN- IU7] (WG.
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.
OUTDOOR UNIT PARTS MUH-12DN MUH-15DN 9
I Symbol ( 0.1 Parts Name Parts No.
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.
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 , -*.
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.
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.
