Mitsubishi Electric City Multi PEFY-P-NMHU-E2 Technical & Service Manual Download

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Air-Conditioners For Building Application

TECHNICAL & SERVICE MANUAL

Model name

Model name

PEFY-P-NMHU-E2

Series PEFY

2013

INDOOR UNIT

Summary of Contents for City Multi PEFY-P-NMHU-E2

Page 1: ...Air Conditioners For Building Application TECHNICAL SERVICE MANUAL Model name Indoor unit Model name Indoor unit PEFY P NMHU E2 Series PEFY 2013 INDOOR UNIT ...

Page 2: ...S 10 5 WIRING DIAGRAM 11 6 REFRIGERANT SYSTEM DIAGRAM 12 7 TROUBLESHOOTING 13 7 1 How to check the parts 13 7 2 Setting of address switch 14 7 3 Setting of Dip switch at delivery 15 7 4 Attention for test run 15 7 5 Function the LED of the indoor unit service board 15 8 DISASSEMBLY PROCEDURE 16 8 1 Service panel 16 8 2 Control box 17 8 3 Fan 19 9 3LSH WKHUPLVWRU 20 UDLQ SXPS UDLQ VHQVRU 21 8 6 Dra...

Page 3: ... in injury If refrigerant gas leaks during installation work ventilate the room If the refrigerant gas comes into contact with a flame poisonous gases will be released Install the air conditioner according to this Installation Manual If the unit is installed improperly water leakage electric shock or fire may result Have all electric work done by a licensed electrician according to Electric Facili...

Page 4: ... the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing Store elbows and other joints in a plastic bag If dust dirt or water enters the refrigerant cycle deterioration of the oil and compressor trouble may result Use ester oil ether oil or alkylbenzene small amount as the refrigerator oil to coat flares and flange connections The refrige...

Page 5: ...Cooling capacity Heating capacity kW BTU h 3 3 10 8 3 3 10 8 3 3 10 8 3 3 10 8 3 3 10 8 3 3 10 8 3 3 10 8 3 3 10 8 4 4 5 0 5 3 5 9 7 0 7 9 7 9 8 8 8 8 10 0 10 6 11 7 14 1 15 8 15 8 17 6 15000 17000 18000 20000 24000 27000 27000 30000 30000 34000 36000 40000 48000 54000 54000 60000 ...

Page 6: ...uver Button 0 Test run Button 2 Timer Menu Button Operation Button a Filter Button Monitor Set Button 6 Fan Speed Button Button 3 Mode Button 7 Airflow Up Down Button b ON OFF Button Return Button 8 Ventilation Button c 3RVLWLRQ RI EXLOW LQ URRP WHPSHUDWXUH 4 Timer On Off Button Operation Button d Set Time Button Set Day Button 9 Check Clear Button 1HYHU H SRVH WKH UHPRWH FRQWUROOHU WR GLUHFW VXQO...

Page 7: ...NCTION 1Hr NOT AVAILABLE STAND BY DEFROST TEMP M F K A P B C E D OL G N I H J Q A Current time Timer B Centralized control C 7LPHU 2 D Timer indicator E 2SHUDWLRQ PRGH 22 DRY 872 1 HEAT F Locked indicator G Set temperature H 3RZHU 21 I Louver J Ventilation K Filter sign L Set effective for 1 hr M Sensor position N Room temperature O Airflow P Fan speed ...

Page 8: ...YHO RZ LJK dB A 39 45 39 45 40 46 38 44 38 44 Ŷ PEFY P NMHU E2 Model Item 3 3 10 8 3 3 10 8 3 3 10 8 3RZHU VRXUVH 208 230V 60Hz Capacity 1 Cooling kW 10 6 14 1 15 8 BTU h 36000 48000 54000 Heating kW 11 7 15 8 17 6 BTU h 40000 54000 60000 Dimension Height mm 380 in 15 Width mm 1195 in 47 1 16 Depth mm 900 in 35 7 16 1HW ZHLJKW kg 69 71 lb 153 157 1 Airflow rate Low High m3 min 26 5 38 0 26 5 38 0 ...

Page 9: ...e 2XWSXW400W 1 906 4 pole 2XWSXW400W 1 906 Innerthermostat Fan motor 2 21 Fan motor capacitor C1 ȝ î 9 ȝ î 9 ȝ î 9 ȝ î 9 ȝ î 9 ȝ î 9 ȝ î 9 ȝ î 9 Linear expansion valve LEV DC12V Stepping motor drive port dimension ø 3 2 0 1800pulse at R410A outdoor unit 0 2000pulse at the other outdoor unit DC12V Stepping motor drive port dimension ø 5 2 0 1800pulse at R410A outdoor unit 0 2000pulse at the other o...

Page 10: ...9 1 3 16 900 35 7 16 24 1 847 33 3 8 10 7 16 41 E Duct 94 3 3 4 250 9 7 8 2 J ø3 1 8 holes 143 58 25 1 50x4 200 50 2 326 5 12 7 8 69 187 180 164 5 432 17 1 16 50 2 45 1 13 16 50x5 250 380 15 F 50 2 40 1 5 8 65 2 9 16 C 50x G 1 H 2x G 1 H 10 7 16 16 11 16 340 13 7 16 D Duct Duct Suspension bolt hole Suspension bolt pitch 80 3 3 16 2x4 7 7 8 2 3 4 7 1 8 6 1 2 4 14 30 9 16x1 3 16 Slot 2 G ø3 1 8 hole...

Page 11: ...tate At applying main power source Lighting LED1 At receiving MA transmission power source Lighting LED2 OPERATION OF LED FOR INDOOR CIRCUIT BOARD SERVICE 208V 250Pa 230V 250Pa 208V 100Pa 230V 150Pa Voltage External static pressure Connector White Blue Red Connector Remote indication Connector Centrally control Connector HA terminal A Connector Remote switch Connector Damper Connector Heater Conne...

Page 12: ...rainers 100 mesh and 50 mesh Heat exchanger Room temperature thermistor TH21 Gas pipe thermistor TH23 Liquid pipe thermistor TH22 Linear expansion valve Gas pipe Brazed connection mm in Capacity Item 3 3 10 8 3 3 10 8 3 3 10 8 Gas pipe ø 12 7 1 2 ø 15 88 5 8 Liquid pipe ø 6 35 1 4 ø 9 52 3 8 ...

Page 13: ... 6 24 0 6 26 2SHQ RU VKRUW A 46 9 34 7 29 1 8 19 L1 4 08 2 81 2 94 0 740 L2 8 95 4 03 3 56 0 741 L3 7 77 6 06 4 35 2 07 Linear expansion valve 1 2 3 4 5 6 LEV White Yellow Orange Blue Red Brown CN60 Disconnect the connector then measure the resistance valve using a tester 1RUPDO Abnormal 1 5 White Red 2 6 Yellow Brown 3 5 2UDQJH 5HG 4 6 Blue Brown 2SHQ RU VKRUW ȍ Drain Pump Drain water lift up kit...

Page 14: ...A B C D EF 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 ON OFF 1 2 5 4 3 SW 4 SW4 1 In case using M NET remote controller address is set by rotary switches SW11 SW12 It is not necessary setting address in case of using unit remote controller Indoor unit do not run without address setting in field 2 Indoor unit address setting rule is different by each field work Refer to install manual of outdoor unit ...

Page 15: ... OFF 220V 240V SW5 PEFY P30 NMHU E2 SW1 SW2 ON OFF ON OFF ON OFF ON OFF SW3 1 2 3 ON OFF SW7 1 2 3 ON OFF SW7 1 2 3 ON OFF SW7 1 2 3 ON OFF SW7 1 2 3 ON OFF SW7 1 2 3 ON OFF SW7 1 2 3 ON OFF SW7 1 2 3 ON OFF SW7 7 4 Attention for test run fCheck that the drain up mechanism is working properly that no water is leaking from pipe connections and that the fan is operating For new installation check th...

Page 16: ...e 1 Removing the service panel 1 Figure 1 1 1 Remove the four service panel 1 mounting screws 2 Removing the service panels 2 and 3 Figure 1 2 1 Remove the five service panel 3 mounting screws 2 Remove the two service panel 2 mounting screws Service panel 1 Service panel 2 Service panel 3 Figure 1 1 Figure 1 2 ...

Page 17: ... Jumper pin SWE Test run Dip switch SWA SWC 2SWLRQ VHWWLQJ 2Checking of the wiring connections to the control box see below and the field installed wiring 3RZHU ZLUH Field connected Indoor outdoor transmission line Field connected Remote controller wiring Field connected LEV wiring Factory connected Drain pump wiring Factory connected Drain sensor wiring Factory connected Fan motor wiring Factory ...

Page 18: ...oard and the relay connectors LEV1 wiring 1 3 KLWH Fan motor wiring 5HOD FRQQHFWRU 3 KLWH Indoor temperature thermistor wiring 1 3 5HG Liquid pipe temperature thermistor wiring 1 3 KLWH Gas pipe temperature thermistor wiring 1 3 ODFN Drain pump wiring 5HOD FRQQHFWRU 3 KLWH Drain sensor wiring 1 3 KLWH 2 Remove the two control box mounting screws ...

Page 19: ...tion to avoid injuries 3 PRGHOV LJXUHV DQG 1 Loosen the three front bellmouth mounting screws and remove the bellmouth 2 Loosen the sirocco fan set screws and remove the sirocco fan 3 Remove the three front fan case mounting screws 4 Remove the four motor base mounting screws 5 Loosen the three back bellmouth and remove the bellmouth 6 3XOO RXW WKH IDQ DORQJ WKH JXLGH UDLO Use caution not to pinch...

Page 20: ...e first four steps in section 8 7 Heat exchanger page23 to remove the plastic cover Be sure to protect the surrounding parts such as insulation and wiring from flame 4 Removing the pipe thermistor Figure 4 2 1 LVFRQQHFW FRQQHFWRUV 1 DQG 1 IURP WKH control board 2 Take the pipe thermistor out of the holder Liquid pipe temperature thermistor Gas pipe temperature thermistor LEV Figure 4 1 Figure 4 2 ...

Page 21: ... Control box page17 3 LVFRQQHFW WKH GUDLQ SXPS UHOD FRQQHFWRU 1 white from the control board 4 Removing the drain pump assembly Figure 5 1 1 Remove the two drain pump mounting screws 5 Removing the drain pump and drain sensor Figure 5 2 1 Remove the two drain pump cover sheet metal mounting screws 2 Remove the three drain pump mounting screws 3 3XOO WKH GUDLQ VHQVRU RXW RI WKH GUDLQ SXPS FRYHU she...

Page 22: ...ith a plastic sheet before draining water 2 Removing the drain pan Figure 6 1 1 Remove the 12 mounting screws from base plate A 2 3XOO GRZQ WKH GUDLQ SDQ RRVHQLQJ WKH PRXQWLQJ VFUHZ on base plate B will make it easy to remove base plate A Pull out the drain pan by pulling a little in all directions Drain pan is made of styrofoam Handle the drain pan carefully so as not to break it Base plate A Bas...

Page 23: ...ng to the procedures detailed in section 8 6 Drain pan page22 4 Removing the plastic cover Figure 7 1 1 Remove the plastic cover mounting screw from the outside of the unit and another mounting screw from inside the unit 2 Unhook the plastic cover from the heat exchanger panel 5 Removing the heat exchanger Figure 7 2 1 Remove the two air baffle plate mounting screws 2 Remove the four heat exchange...

Page 24: ...New publication effective Oct 2013 Specifications subject to change without notice Issued in Oct 2013 HWE12120 Printed in Japan HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

Page 25: ...ST FOR MITSUBISHI ELECTRIC PACKAGED AIR CONDITIONERS Series INDEX PEFY P15NMHU E2 PEFY P18NMHU E2 PEFY P24NMHU E2 PEFY P27NMHU E2 PEFY P30NMHU E2 PEFY P36NMHU E2 PEFY P48NMHU E2 PEFY P54NMHU E2 2013 09 27 2013 09 27 2013 09 27 2013 09 27 2013 09 27 2013 09 27 2013 09 27 2013 09 27 2013 09 27 2013 09 27 ...

Page 26: ...EFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36N...

Page 27: ... KJ00G416G01 KJ00G416G01 KJ00G416G01 KJ00G416G01 KJ00G416G01 KJ00G416G01 KJ00G416G01 KJ00G416G01 115 115 115 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 R61 130 529 Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan 24 24 1 1 1 KJ00G463G01 KJ00G463G01...

Page 28: ...01 KJ00G463G01 KJ00G463G01 116 116 116 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 R61 131 529 Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan Drain pan 30 30 KJ00G463G02 KJ00G463G02 KJ00G463G02 KJ00G463G02 KJ00G463G02 KJ00G463G02 KJ00G463G02 KJ00G463G02 KJ0...

Page 29: ...2 PEFY P18NMHU E2 PEFY P18NMHU E2 PEFY P18NMHU E2 PEFY P18NMHU E2 PEFY P18NMHU E2 PEFY P18NMHU E2 PEFY P18NMHU E2 PEFY P18NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 PEFY P24NMHU E2 BLOWER PARTS 1 BLOWER PARTS 1 ...

Page 30: ...63 F85 573 R63 F85 573 R63 F85 573 R63 F85 573 R63 F85 573 R63 F85 573 G Guide Guide Guide Guide Guide Guide 71 71 2 2 2 W866123H01 W866123H01 W866123H01 W866123H01 W866123H01 W866123H01 W866123H01 W866123H01 W866123H01 W866123H01 205 205 205 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 G...

Page 31: ...NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54...

Page 32: ... 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 R63 755 104 G Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush Rubber bush 2 2 R331F676H01 R331F676H01 R331F676H01 R331F676H01 R331F676H01 R331F676H01 R331F676H01 R331F676H01 R331F676H01 R331F676H01 R331F676H01 310 310 310 R63 Y01 104 R...

Page 33: ... PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P27 P30 P36NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEFY P48 P54NMHU E2 PEF...

Page 34: ...021 246 R61 021 246 G Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block 1 1 1 1 1 1 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 BH00C267G05 TB2 TB2 T...

Page 35: ... R61 022 246 R61 022 246 R61 022 246 R61 022 246 R61 022 246 R61 022 246 R61 022 246 R61 022 246 R61 022 246 G Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block Terminal block 1 1 BH00C267G04 BH00C267G04 BH00C267G04 BH00C267G04 BH00C267G04 ...

Page 36: ...BWE013160 20130930 ...

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