Operation resumes in the mode in which the equipment was running immediately before the outage. HIGH PERFORMANCE ROTARY COMPRESSOR The advanced design of Mitsubishi Electric’s powerful and ener- gyefficient rotary compressor results in lower operating costs and longer service life.
TECHNICAL CHANGES MSM18EW MSM18NW 1. Indoor unit has been changed. 2. Outdoor unit has been changed. 3. Remove controller has been changed. (The timer function was changed to the clock timer function.) 4. Indoor auto vave has been adopted. 5. Outdoor fan motor has been changed. (SGW-60F-AC RA6W60-AA) 6.
SPECIFICATIONS Model MSM18NW SINGLE DOUBLE Items w1 BTU/h Cooling capacity 8,400 8,400 2 w1 W Power consumption 1,700 EER (Double unit operation) SEER (Double unit operation) 10.0 INDOOR UNIT MODEL MS09NW 2 Extenal finish White Power Supply V, Hz, Phase 115,60,1 Max.
DATA 1.PERFORMANCE DATE (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT) MS09NW MUM18NW Outdoor intake air DB temperature ( ˚F ) Indoor air Models ( ˚F ) 10.3 5.93 0.76 9.61 5.55 0.83 9.03 5.21 0.89 4.84 0.94 7.73 4.46 0.98 MS09NW 9.74 6.91...
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3.CONDENSING PRESSURE AND SUCTION PRESURE (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT) Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the corve shows the reference point. MS09NW MUM18NW (PSIG) 86-F 104-F...
2.STANDARD OPERATION DATA MSM18NW Model Single Double Item Unit Cooling Capacity Btu/h 8,400 8,400 2 — Total 0.71 0.71 Input 0.85 1.70 Indoor unit model MS09NW 115 . 60 . 1 Power supply (V,Hz,{) Input 0.035 2 Fan current 0.34 2 Electrical Outdoor unit model MUM18NW...
4.OPERATING RANGE ( 1 ) POWER SUPPLY Models Rating Guaranteed Voltage 115V 60Hz 1[ Min. 103v—Max. 127V Indoor unit MS09NW Min. 198V 208V 230V Max. 253V 208/230V 60Hz 1[ Outdoor unit MUM18NW (3wires) ( 2 ) OPERATION Intake air Indoor Outdoor temperature Function...
OUTLINES AND DIMENSIONS MODEL : MUM18NW Unit : inch OUTDOOR UNIT REQUIRED SPACE Air in 4 Installation anchor holes 2-1/4 3/8 13/16 1-3/8 Air in 1-1/4 4 Drain holes [5/8 Air out Space for 11-7/16 servicing 33-1/2 1-3/16 1-3/16 2-3/8 5-1/4 5-1/8 Unit...
WIRING DIAGRAM OUTDOOR MODEL MUM18NW WIRING DIAGRAM 52C1 51C1 115V POWER SUPPLY 208/230V 1phase 3wires 60Hz 115V 52C2 51C2 X1 2 GROUND TO INDOOR UNIT No.A CONNECTING WIRES DC12V TO INDOOR UNIT No.B CONNECTING WIRES DC12V SYMBOL NAME SYMBOL NAME SYMBOL NAME C1,2...
REFRIGERANT SYSTEM DIAGRAM MS09NW 2 / MUM18NW Unit : inch Indoor unit Outdoor unit Refrigerant pipe [3/8 (Option) (with heat insulator) Service Fusible Ball valve port Service plug Flared port connection Compressor Indoor heat Indoor coil exchanger thermistor RT12 Accumulator Muffler Flared connection...
TROUBLESHOOTING MUM18NW 9-1 Cautions on troubleshooting 9-1-1 Before troubleshooting, check the followings: 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for mis-wiring. 9-1-2 Take care the followings during servicing. 1) Befor servicing the air conditioner, be sure to first turn off the remote controller to stop the main unit, and then after confirming the horizontal vane is closed, disconnect the breaker.
Check of outdoor unit Compressor and outdoor fan do not operate.(Only indoor fan operates.) Start Press EMERGENCY ON/OFF button. 3-minute time delay works. Test mode operates for 30 minutes. Check voltage to terminal block of outdoor unit. Is there 115V AC to terminal block between Turn on outdoor power supply.
DISASSEMBLY INSTRUCTIONS OUTDOOR UNIT MUM18NW OPERATING PROCEDURE PHOTOS Photo 1 1. Removing of the cabinet (1)Remove the set screws of the valve cover to remove the valve cover as shown in Photo 2. Screws (2)Remove the set screws of the side panel to remove the side panel and cabinet.
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OPERATING PROCEDURE PHOTOS Photo 5 Set screws of the relay panel 3. Removing the outdoor fan motor. (1) Remove the cabinet. (Refer to 1) (2) Remove the propeller. (Refer to 2) (3) Disconnect the connector remove the clamp of out- door fan motor lead wire.
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OPERATING PROCEDURE PHOTOS Photo 7 4. Removing the compressor Set nuts of the terminal cover (1)Disconnect the cord connector. (See Phot 5) (2)Remove the set screws of the relay panel. (3)Remove the set nuts of the terminal cover. (4)Pull up the compressor. (5)Pull out the lead wires from the compressor terminal to remove overcurrent relay.
PARTS LIST OUTDOOR UNIT PARTS MUM18NW Refer to MS09EW for indoor unit. Part number that are circled is not shown in the illustration. Symbol ty/unit Parts No. Parts Name Remarks Wiring MUM18NW Diagram T2W 382 342 CONTACTOR 52C1,52C2 G4F11123T-M T2W 462 232 CABINET T2W 667 249 SIDE PANEL...
OPTIONAL PARTS 1. REFRIGERANT PIPES The air conditioner has flared connections its indoor and outdoor sides. Please use the optional extension pipe as follows. Additional Pipe size O.D refrigerant Model Part No. Pipe length Cross-section A-Gas B-Liquid Insulation charge R-22(Oz) 10ft MAC - 440PI C 13/16...
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The Slim Line. From Mitsubishi Electric. CCopyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. New publication, effective Sep. 1997. Issued in Sep. 1997 NO.OB202 5011 Specifications subject to change without notice.
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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.
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