Mitsubishi MSH-18RV Service Manual

TECHNICAL & SERVICE MANUAL - - \ Wireless type MS-OSDW-U1 csw,w~~- - Models MSH-OSD W-U%SW,WGI I ' MSH-12DN-U1 ts&,woi MSH-15DN-U1 CSWI

2. OPERATING RANGE (1) POWER SUPPLY I I Models I Indoor unit MSH-O9DW ( MSH-12DN MU-O9DW MUH-O9DW Outdoor unit MUH-12DN MUH-15DN t (2) OPERATION 1 15V

La 3. OUTLET AIR SPEED AND COVERAGE RANGE Model Airflow Air speed Covera e I Function / ICFM) / (ft/sec) /range (8) .The air coverage range is th

M~del MS-WDW-U1 MSH-OSDW-U1 I input I kw I 0.04 I 0.04 I 0.04(1.04) I lndoa writ hwer ~pph/ (V. Phase. HZ) Total I I Input I kw I 0.86 I 0.9 I 1.05(

Model I MSH-12DN-U1 I MSH-15DN-U1 kern I unit I Cooling Heating Coding I Heating I - pp ~pacitY 1 11.800/12.500 14.030/14,500 Total SHF - 0.72 - 0.

MODEL : MS(H)-O9DW - IU1/ INDOOR UNlT 1 1 10-11/16 4 12-5/8 ] \ st Wall hole OUTLINES & DIMENSIONS MODEL : MU(H)-O9DW - lUll OUTDOOR UNlT Air int

MODEL : MSH-1ZDN - a Unit : inch MSH-15DN - INDOOR UNlT 3-1/2 L ' Indoor unit ---- I Installation plate 15-1/8 15 . Wall hole : 43 39-3/8 t 1 MO

CIRCUIT DIAGRAM -. . ' t. 7 -I 11: MODEL MS-OQDW-rn WIRING DIAGRAM SKELETON WIRING DIAGRAM pimmil pimzzq

- MODEL MSH-OSDW-IU11 WIRING DIAGRAM SKELETON WIRING DIAGRAM pGEiq piEmKJ SYMBOL^ NAME ISYMBOL~ NAME SYMBOL NAME I I I C11 INDOOR FAN CAPACITOR (IN

SKELETON WIRING DIAGRAM POWER POWER SUPPLY SUPPLY 115V 208/230\1 60Hz 60Hz 1 SlMsOL C1l C61 C65 FS Fl1 NAME INDOOR FAN CAPAMTOR COMP. CAPACITOR .

Indoor unit 1 Refrigerant pipe 63/8 (Option) Fl (with heat insulator) connection REFRIGERANT SYSTEM DIAGRAM Room temd I I $all valve \ 1 Accumulator F

Room temp. themiistor Heater RTl 1 control thennintor RT13 --- Flared connection Capillary tube - MSH-12 : 60.12xd1/16~3-15/16 (Option) MSH-15 : 60.12

Wireless Remote Controller SENDING SECTION-) LCD INDICATOR I FEEL CONTROL bunon MASTER CONTROL bunon FAN CONTROL bunon SET TEMP. bunon TIMER CONTROL

# 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 ro

- 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 sho

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. Th

2. High pressure protection During heating operation the solenoid valve for injection and the outdoor fan motor are controlled by the temperature of t

Defrost time chart 37'F Defrost thermistor *-I I 2 min. I - . 4 deg. I I I I ON 1 I o Defrost interval I I I I I I I I I I I I OFF I I ON j 8 ON

4. Heater control (1) When all listed conditions are satisfied and 30 sec. elasped, power is supplied to the heater. Oln heating mode @Indoor fan sp

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 ligh

(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

FEATURES LCD wireless remote controller Models Cooling Capacity Heating Capacity SEER COP MS-O9DW 9,000 BTU/h - 10.59 - MSH-O9DW 8,800 BTU/h 10,900

9. AUTO RESTART FANCTION (Optional) How to restart units after power failure by Auto Restart. Model ONNErnOR NO. MrnOD 1 1, MS-09DW- rn 1 CNl25 1 Sho

Self check function This function is to show defective point by lighting or flickening of the indoor unit power lamp, defrost lamp, or &

(1) Operation does not start MS-O9DW - MSH-OSDW - lUll Does+signal mark display for an instant on Remote Controller when POWER button No pressed? 1 \

9 (2) Operation does not start. MSH-12DN - MSH-15DN - a " \ Check continuity of connector; 1 when you check to voltage. Check power supply volt

(2) Outdoor fan does not operate (compressor operates) MSH-OSDW - lUll MSH-1 2DN - MSH-15DN - lUll Below listed are not troubles 1. Heating defrost D

PI'* 3. Compressor does not operate (Indoor and outdoor fan operates) MSH-OSDW - lUll MSH-12DN - lUll MSH-15DN - lUll [Noticel Check continuity o

Compressor and outdoor fan do not operate (Only indoor fan operates) MS-OSDW- I Press EMERGENCY ON/OFF button. 3 min. timedelay function operates. T

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&ap

5. Heating operation does not work. (Cooling operation works) MSH-OSDW - JU11 MSH-1 2DN - lUll MSH-1 SDN - JU11 I Set the SELECTOR to HEAT. Ress the E

3 I RELAY OPERATION MS-O9DW- a MSH-O9DW- MSH-12DN- DI MSH-15DN- AUTO or set speed For 2 min. is OFF, when VLO speed. system tum on first. DRY & O

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 h

TEST POINT DIAGRAM AND VOLTAGE MS-OSDW@~~ Electronic contol P. C. board I Auto restart conneaor CN~OI Shorten the connector CN 125 POW1 betweeno-0 10

MS-OQDW- /U11 Power P. C . board ll5V AC Indoor fan mator mltasa 1-a- Fan connector

Electronic control P.C. board '4 10V DC Power supply of control circuit ON : 12V DC Heater contactor OFF : OV DC

f', s! :m *I ii 1% Power P. C. board F - - r' L ( .I ll5V AC Indoor fan motor voltage

Defmst thermistor RT6 1 Discharge temp. thtWtllii RT62 R.V. wil ll5V AC Solenoid coil Outdoor fan motor 115V AC 1 - 15V AC BLK~BLK w1-1~21 JBLKB Comp

Electronic control P. C. board 4uto restart mnector CN 107 shorten me connector D-Q -Room temp. - thermistor RTl 1 -Indoor coil - thermistor RT12 - He

Discharge temp. mennistor RT62 Temperature CF) R.V. coil Outdoor fan motor 208/230V 208/230V AC - C BLKI IBLK

INDOOR UNIT PARTS MS-OSDW- a (WG,SW) MSH

OE 6Z, 8Z LZ gZ sZ PZ EZ ZZ LZ OZ 81 LL 91 PL El L 1 1 1 1 1 1 L 1 l 1 1 L 1 L Z L L PL L L 1 1 L 1 DM Ln Ma6O-SW H88 SJ H E Lltl Z lltl ZLltf 1 LlU l

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 POW

OUTDOOR UNIT PARTS MU-OQDW

Symbol Q'tylunit in lo. Parts No. Parts Name Skeleton MU-09 MUH-09 Remarks wiring Diagram DW-Ul DW-U 1 J 1 T2W 464 232 CABINET 1 1 2 M

REMOTE CONTROLLER MS-O9DW- MSH-O9DW- fVJ I I Symbol ~n Q'ty/unit I No. 1 Parts No. T2W 679 426 - T2W 635 426 1 1 1 I M21 N28 01 7 BATTERY COVER

ACCESSARY PARTS MS-O9DW- a MSH-O9DW- a 61 Parts Name RE"'O1 t C,.. . ..,---.. ...--.-. .. .- M nNTRnl l FR ~011- HARDWARE PUTTY PIPING TAPE

INDOOR UNIT PARTS MSH-12DN- (WG,SW) MSH-15DN- (SW)

I I svrnbo~ I Q'n//unit I 0.1 Parts No. Parts Name 1 2. 3 -- - T2W 51 6 970 INSTALLATION PLATE 1 T2W 521 234 BOX ASSEMBLY (SW) 1 T2W 65

INDOOR UNIT PARTS MSH-12DN- IU7] (WG .SW) MSH-15DN- IU7] (SW)

1 ~vrnbol I Q1ty/unit I lo. 1 t Pans No. 2 3 4 5 9 1 M21 453 505 1 RUBBER MOUNT (MOTOR) I 12/2[21 1 T2W 659 235 T2W 660 235 6 7 8 Parts Name T2

OUTDOOR UNIT PARTS MUH-12DN MUH-15DN 9

0.1 Parts No. I Symbol ( Q'ty/unit in 1 Parts Name skeleton MUH-~~ MUH-~~ Remarks I Dt,":L 1 DN-Ul / DN-Ul / 1 T2W 510 232 CABINET 1 1

'L - - - - - - - - - - - - - - - - - - - - - - - - - - - - h Notes * 1 .Rating condiins (cooling) - lndoor : 8WFDB. 67'FWB. Outdoor : 95&ap

REMOTE CONTROLLER MSH-12DN- IU1J MSH-15DN- IU1J 40-1 Parts No. - 'i ' I I - 100 COOL OKAY TW WARM 000 C !iYi!Q AMITSUBISHI ELECTRIC Parts Na

lNO.l Parts No. Parts Name Symbol ~n Skeleton MSH-12 MSH-15 Remarks 1 1 DN-UI 1 DN-Ul I Q'ty/unit I I - I I I WALL HOLE SLEEVE REMOTE CONTRO

OPTIONAL PARTS 1. REFRIGERANT PIPES The air conditioner has flared connections its indoor and outdoor sides. Please use the optional extension pipe as

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 ar

- - MODEL MSH-12DN-U1 MSH-15DN-U1 '1 H in. Weight Ibs. OUTDOOR UNIT Extemal finish Power supply V.Phase, Hz Max. fuse size (time delay) A

DATA 1. PERFORMANCE CURVE Cooling capacity SHF at rating condition = 0.71 Airflow = 265 CFM Bypass Factor = 0.1 1 5 Outdoof D.B entering temp.rF) Cool

Outdoor D.8 entering temp.rF) Outdoor D.6 entering temp. ('F) Heating capacity Airflow = 470 Outdoor W.B entering temp. ('F) Heating capacit