technical & service manual - Mitsubishi Electric Cooling & Heating
Contents
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4. Part No Specification Q ty set Remarks PMFY P06 08 12 15 Wiring Drawing Diagram NBMU E NBMU E1 NBMU E 2 NBMU ER3 NBMU ER4 Symbol T7W E41 716 TERMINAL BLOCK 3P L1 L2 GR 1 1 1 1 1 TB2 R01 E27 246 TERMINAL BLOCK 3P M1 M2 S 1 1 1 1 1 TB5 R01 E21 246 TERMINAL BLOCK 2P 1 2 1 1 1 TB15 T7W E51 716 TERMINAL BLOCK 2P 1 2 1 1 TB15 T7W E01 294 ADDRESS BOARD A B R01 E07 304 CABLE ASSY R01 E10 304 CABLE ASSY T7W 420 239 FUSE 250V 6A R01 E06 239 FUSE 250V 6 3A T7W E59 310 INDOOR CONTROLLER BOARD T7W E67 310 INDOOR CONTROLLER BOARD T7W E72 310 INDOOR CONTROLLER BOARD 0 0 0 0 0 0 02100 0 0 0000 RoHS T7W 85 310 IND00R CONTROLLER BOARD a MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU 0100 8310 JAPAN Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO LTD 2009 No OC341 REVISED EDITION E PDF 7 2008 No OC341 REVISED EDITION D PDF 7 2008 No OC341 REVISED EDITION C PDF 7 2007 No OC341 REVISED EDITION B PDF 9 2006 No OC341
5. A9NO 410 mm i m o Part Name Specification Q ty set PMFY P 06 08 12 15 NBMU E Remarks Drawing No Wiring Diagram Symbol T7W E11 TERMINAL BLOCK 3P L1 L2 GR 1 TB2 T7W TERMINAL BLOCK 3P 1 2 5 TB5 R01 TERMINAL BLOCK 2P 1 2 TB15 T7W ADDRESS BOARD R01 CABLE ASSY T7W INDOOR CONTROLLER BOARD with POWER BOARD 36 1 1 1 1 1 12 RoHS PARTS LIST PANEL PARTS PMP 16BMU FOR PMFY P06 08 12 15NBMU Eo PMP 16BMUW FOR PMFY P06 08 12 15NBMU E 2 PMFY P06 08 12 15NBMU ER3 PMFY P06 08 12 15NBMU ER4 10 11 10 2 Part No Part Name Specification Q ty set PMP 16 BMU BMUW Remarks Drawing No Wiring Diagram Symbol T7W E16 003 AIR OUTLET GRILLE 1 T7W E22 003 AIR OUTLET GRILLE R01 E01 055 LATCH R01 E01 099 PANEL HOOK R01 E07 054 GRILLE CATCH R01 E14 500 L L FILTER R01 E15 500 L L FILTER T7W E04 691 INTAKE GRILLE T7W E06 691 INTAKE GRILLE R01 E06 054 GRILLE CATCH R01 E01 648 RECEIVER COVER R01 E01 044 MAGNET
6. EMS av epoo Ayoedeg yams ZMS 3 JOJOW 1 ais Jejogjuoo Ajddns Jamog Joy 5 4 OAS L 4 Z a Aiddns 2051 youms ZENO due uo Aiddns samod 137 pinbi1 uonoejep edid ZZHL g DAiddns semod 137 jedueq 1cNO A0 Z g0Z3lun Joopul jddns Ot 6 3 12 0491 4 22 1euuojsue1 1 _ 5 ZNO uonoung uonoejep Jojsiuueu LZHL ejerxny X J8 04ju09 JO0OpU gi BOIAJOS 10 pJeoq Joopui uo 04 6 joquiAs joquids 1 11 PMFY P15NBMU E 2 PMFY P15NBMU ER3 PMFY P15NBMU ER4 PMFY P12NBMU E 2 PMFY P12NBMU ER3 PMFY P12NBMU ER4 PMFY PO8NBMU E 2 PMFY PO8NBMU ER3 PMFY PO8NBMU ER4 PMFY PO6NBMU E 2 PMFY PO6NBMU ER3 PMFY PO6NBMU ER4
7. Control modes Control details Remarks 1 Functions regulated 1 1 Functions regulated by temperature by temperature Room temperature Z desired temperature 2 F Thermo Room temperature desired temperature Thermo OFF 1 2 Anti freezing control Detected condition When the liquid pipe temp TH22 is 32 F or less 16 minutes from compressors start up anti freezing control starts and the thermostat OFF Released condition The timer which prevents reactivating is set for 3 minutes and anti freezing control is cancelled when any one of the following conditions is satisfied Liquid pipe temp TH22 turns to be 50 F or above The condition of the thermostat OFF becomes complete by thermoregulating etc The operation mode becomes a mode other than COOL The operation stops 1 3 Compressor time delay 3 minutes minimum off cycle By the remote controller setting switch of 4 speeds Type Fan speed notch Low Medium2 Medium1 High 14 Control modes Control details Remarks 3 Drain pump 3 1 Drain pump control Always drain pump ON during the COOL and DRY mode operation Regardless of the thermostat ON OFF When the operation mode is changed from COOL or DRY to any other mode including Stop the drain pump continues to run for 3 minutes Drain sensor function x1 indoor circuit board energizes the drain sensor at a fixed voltage fo
8. oo UO vuonan Omn Multiple remote C How to read curves DET Duct characteristics Curve in the at site i right graphs 4 Z 0 Q Designed amount of fresh air intake lt CFM gt A Static pressure loss of fresh air Characteristic diagram of air capacity taken from outside of PMFY P NBMU E intake duct system with air flow amount Q lt in W G gt 0 2 B Forced static pressure at air condi tioner inlet with air flow amount 04 lt in W G gt O C Static pressure of booster fan with 0 air amount Q lt in W G gt E oo D Static pressure loss increase amount of fresh air intake duct 0 1 system for air flow amount Q 8 lt W G gt 0 2 E Static pressure of indoor unit with air flow amount Q lt in W G gt 03 Qa Estimated amount of fresh air intake without D lt CFM gt 0 4 0 10 20 30 40 50 60 70 80 Air flow CFM 4 4 NOISE CRITERION CURVES PMFY PO6NBMU E PMFY POGNBMU E NOTCH SPL dB High 35 PMFY PO6NBMU E 2 Medium1 33 PMFY PO6NBMU ER3 Medium2 30 PMFY PO6NBMU ER4 Low 27 90 80 0 0002 ubar 70 60 50 40 30 20 APPROXIMATE THRESHOLD OF HEARING OCTAVE BAND SOU
9. Air flow at Low Extra low Extra low Heat thermo OFF Setting air flow Depends on SW1 7 Low Auto restart function Effective Not effective Setting air flow Stop Power ON OFF by breaker Effective Not effective MODELS SW 2 MODELS Sw 2 Indoor controller board ON ON SW2 PMFY P06NBMU E omm mum PMFY P12NBMU E uim Before Capacity power lt Initial setting gt code supply 5 ON ON setting PMFY P08NBMU E i PMFY P15NBMU E s u ON Set for each capacity Heat pump Cool only Cooling only Heat pump Indoor controller board Louver Available Not available Vane Available Not available lt Initial setting gt ON Vane swing function Available Not available OFF 12345678910 Vane horizontal angle Second setting 6 First setting X4 At cooling mode each Vane cooling limit angle setting X4 Horizontal angle Down B C angle can be used only SW3 Function setting eps see Effective Not effective Bn thermostat is OFF x5 SW 3 9 setting Heating 4deg up Not effective Effective Under PMFY P06 POBNBMU E ON PMFY P12 PT5NBMU E OFF Target superheat setting 5 Suspension SW 3 10 setting PMFY P06 POBNBMU E ON Target sub cool setting X5 PMFY P12 P15NBMU E OFF OO O Q NN Do not use SW3 9 10 as trouble might be caused by the usage condition
10. 5 21 10 DISASSEMBLY PROCEDURE 30 41 34 12 ROHS PARTS 115 2 37 INDOOR UNIT m CITY MULTI 1 TECHNICAL CHANGES PMFY P06NBMU ER3 PMFY P08NBMU ER3 PMFY P12NBMU ER3 PMFY P15NBMU ER3 1 DRAIN PIPE has been changed L4 PMFY PO6NBMU ER4 PMFY PO8NBMU ER4 PMFY P12NBMU ER4 PMFY P15NBMU ER4 2 JOINT SOCKET FOR DRAIN PIPE has been added PMFY PO6NBMU E 2 PMFY PO8NBMU E 2 PMFY P12NBMU E 2 PMFY P15NBMU E 2 PMFY PO6NBMU ER3 PMFY PO8NBMU ER3 PMFY P12NBMU ER3 PMFY P15NBMU ER3 CONTROLLER BOARD been changed It is possible to extract signal external 6 8 PMFY P12NBMU E PMFY PO6NBMU E 2 PMFY PO8NBMU E 2 PMFY P12NBMU E 2 PMFY P15NBMU E PMFY P15NBMU E 2 1 CONTROLLER BOARD has been changed 2 PANEL has been changed PMP 16BMU gt PMP 16BMUW White 0 98Y 8 99 0 63 Pure white 6 4Y 8 9 0 4 3 FAN MOTOR MF has been changed 4 THERMISTORs TH22 TH23 have been changed PMFY PO6NBMU E PMFY PO8NBMU E PMFY P12NBMU E PMFY PO6NBMU E PMFY PO8NBMU E PMFY P12NBMU E Pakal PMFY P15NBMU E PMFY P15NBMU E 1 FAN MOTOR has been changed 2 CONTROLLER BOARD I B has been changed 2 FEATURES Indoor Unit
11. LZ L LZ L NHO 9 81 o o o o 0699990 99999 o e 9 p o 9 o o z m w 91 2 a z s 2 6 2 z W d a 00000 6 L E ZHL sa aM Ajddng 1eddo es zx AW Nn YI TA EE EE E MEM saad cio 11881857627 eBeyoA Ajddns Jamod y 0 GAAS YMS 195 eseel d Z mm mS g 5 NO NO Lx By 0 1 J 1 Y 104 Ajroedeo y dip EMS ZMS 94 JO Bumes eu 79 yooq T e oqe ul pesn NO NO 5 066255952212 369621 o pI luS eu si GL Jo s Ioqui S sam aa mum 90d te od uou s aul uorssiusueJ Gg o j2euuoo 3N NW Jo eseo ul MS ZMS SI pONW SI JIA 2 4 1p uuoo se ld e1oules vIN eseo ul Z Lx Bu Joopyno ay yun BUSS 9JoN ON Uoueig YMS J llonuoO y6ip so Bumes sseuppy ZIMS uoissiusue1 v9 sna 3614 s Bumes sseuppy LEMS Aiddns zal 10jsueA NZ uonoejes eBDeyoA SMS Jeeur I DON YMS uonoejes pON LMS Josues
12. Nozzle Removing the air intake grille 1 Press the PUSH of the air intake grille and pull down the both ends of nut with your fingers after the grille clicked See Figure 1 2 Pull out the handle of air intake grille strongly toward you See Figure 2 3 Draw the string of the air intake grille to prevent the air intake grille from dropping See Figure 3 Air fil Figure 1 Checks before setting the grille in place 1 Before installing the grille make sure the indoor unit is square with the ceiling opening or parallel to the angle between the wall and the ceiling 2 Check that the 4 points where the grille will be secured are in contact with the ceiling surface 3 Check that the insulation for the refrigerant pipes drain age pipes etc is in place and that wiring connections and arrangements are complete Figure 2 Figure 4 Points for securing the grille String for dropping prevention Points for securing the grille Figure 3 Figure 5 22222222222 Points for securing the grille Make sure these surfaces are flush with each other 0 3 mm Ceiling surface Drainage pan PROCEDURE PHOTOS amp ILLUSTRATIONS Removing the grille
13. Models Cooling capacity Heating capacity PMFY P06NBMU E 6 000 6 700 Btu h PMFY P08NBMU E 8 000 9 000 Btu h PMFY P12NBMU E 12 000 13 500 Btu h PMFY P15NBMU E 15 000 17 000 Btu h 1 Fresh Air Intake Air recycled indefinitely can become stale and stagnant with air quality suffering significantly Fresh air is the answer and it is for this reason that the PMFY series takes in air directly from outdoors This fresh air intake allows you to enjoy the comfort of crisp refreshing air in the confines of your living or working space 2 Light and Compact The main unit weighs only 31 Ib and the panel merely 7 Ib This makes the PMFY series one of the light est in the industry The unit size is also quite small having been standardized to a strikingly compact 33 5 8 inch All of this make the chore of installation and maintenance that much simpler and easier 2 3 PART NAMES AND FUNCTIONS e Indoor Unit Auto Air Swing Vane Disperses airflow up and Guide vane down and adjusts the angle Air flow can be changed to horizontal of airflow direction by moving the guide vane to the left or right Horizontal Air Outlet Filters Air intake Remove dust and pollutants Returns air from room from return air e Wired remote controller Once the controllers are set the same operation mode can be repeated by simply pressing the ON OFF button T
14. Part Specification PMFY P NBMU E Drawing No Diagram Wiring 2 06 08 12 15 Symbol 22A BEARING MOUNT 1 1 005 SLEEVE BEARING 1 E02 LINE FLOW FAN 1 E00 STABILIZER ASSY 1 1 1 E01 VANE MOTOR E00 VANE SLEEVE K08 HEAT EXCHANGER K09 HEAT EXCHANGER E10 DRAIN PAN ASSY E00 THERMISTOR ROOM E00 GUIDE VANE E01 THERMISTOR LIQUID E03 THERMISTOR GAS E66 LINEAR EXPANSION VALVE E01 VANE E00 CASING ASSY 31K SENSOR HOLDER E01 DRAIN SENSOR E07 DRAIN PUMP E00 MOTOR SUPPORT E14 FAN MOTOR E07 RUBBER MOUNT E00 DRAIN PIPE ASSY E01 SCREW 55 N gt gt gt gt gt gt gt gt gt gt gt m d d gt gt a gt 5 gt gt gt 35 ELECTRICAL PARTS PMFY PO6NBMU E PMFY PO8NBMU E PMFY P12NBMU E PMFY P15NBMU E O d 2 DL iS 1 yn H L I 2 i 5 m IS en cs 3 _
15. 1 Open the intake grille by pressing PUSH of the air intake grille and remove the air filter x 2 See Figure 1 2 Remove the screw cover in the middle of the air outlet See Figure 7 3 Open the upper and lower flaps on the indoor unit com pletely See Figure 7 4 Remove the securing screws x 7 M5 x 0 8 x 16 6pcs 4 x 16 1pc 5 Remove the temporary holding tabs on the grille to the hooks on the indoor unit Attaching the grille 1 Open the upper and lower flaps on the indoor unit com pletely 2 Hook the temporary holding tabs on the front panel to the hooks on the indoor unit 3 Adjust the grille so that it fits properly in the angle between the ceiling and the wall and install the securing screws supplied with this grille in their 4 places at left and right leaving them slightly loose 4 Tighten the securing bolts and securing screws in the centre 3 places See Figure 6 5 Tighten the securing bolts in the 4 places at left and right Make sure there are no gaps between the indoor unit and the grille and between the grille and the ceiling surface If there are gaps the wind may come in and it may cause water to drip See Figure 8 Tighten the securing bolts and securing screws com pletely 6 Replace the air filter and screw cover and press the intake grille until you hear it snap into place PUSH of Checks after setting
16. 220V 208V 240V 230V 9 4 TEST POINT DIAGRAM 9 4 1 Indoor controller board PMFY POGNBMU E PMFY PO8NBMU E PMFY P12NBMU E PMFY P15NBMU E PMFY POGNBMU E PMFY PO8NBMU E PMFY P12NBMU E PMFY P15NBMU E CN32 Connector sw2 SW3 Remote switch SW4 Capacity setting Function setting Model selection 45488 0 99980 CERO Damper elles pump output Connecter Humidifier AE i DP 1 Between to 5 CHEM 208 230V AC NO NO x 8 m Connect to the vESOI WISI 021 terminal block 2 8 4 H Power supply for e og MODI ig S H indoor controller CN6V O z 3 BP board connecting Vane motor output MV wire Between O to 208 230V AC CN52 Remote indication RR F p FUSE 6A 250V 8 55170 CN51 Centrally control iD o of s CN41 lo Fan motor output HA terminal A 5794 w b CN60 88 Linear expansion valve output LEV LEV CN60 CN20 Room temperature thermistor TH21 lcm 1 D CN21 Pipe temperature thermistor Liquid P s CN29 Pipe temperature thermistor Gas a431 C002 x QI TH23 LED1 Power supply Indoor unit CN31 208 230V Drain sensor DS LED2 CN3A CN2M Power supply R
17. x6 Second setting means first setting In case replacing the indoor controller board make sure to set the switch to the initial setting which is shown below PMFY P NBMU E PMFY P NBMU E PMFY P NBMU E 2 ER3 ER4 ON ON ON series 12345 12345 12345 Indoor controller board 25 Switch Operation by switch Effective timing Remarks SW11 1s digit address setting setting Rotary switch SW12 5 11 a e Co Co 9 gx gx 10 1 How to set addresses Example If address is 3 remain SW12 for over 10 at 0 and match SW11 for 1 to 9 with 3 SW14 Branch No setting Rotary switch 5 14 0 7 or see How to set branch numbers SW14 Series R2 only Match the indoor unit s refrigerant pipe with the BC controller s end connection number Remain other than series R2 at 0 SW5 Voltage Selection 220V 240V 230V 208V If the unit is used at the 230V area set the voltage to 230V If the unit is used at the 208V set the voltage to 208V 26 Before power supply ON Address board lt Initial setting gt swi2 SW11 Os 9 c6 Address board Initial setting Sw14 410 a 5 12 Address board lt Initial setting gt
18. R01 E04 096 SCREW CAP 2 18 G G G G G G G G R01 E07 096 SCREW CAP 37 FUNCTIONAL PARTS PMFY P06NBMU E PMFY P08NBMU E PMFY P12NBMU E PMFY P15NBMU E PMFY POGNBMU E PMFY POSNBMU E PMFY P12NBMU E PMFY P15NBMU E Part Name Specification WW QN CA W Q ty set P NBMU E 06 08 12 15 06 08 12 15 Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty BEARING MOUNT 1 1 1 SLEEVE BEARING LINE FLOW FAN STABILIZER ASSY VANE MOTOR VANE SLEEVE HEAT EXCHANGER 1 1 1 1 1 1 1 1 1 1 1 1 HEAT EXCHANGER DRAIN PAN ASSY THERMISTOR ROOM GUIDE VANE THERMISTOR LIQUID THERMISTOR GAS EXPANSION VALVE VANE CASING ASSY SENSOR HOLDER DRAIN SENSOR DRAIN PUMP MOTOR SUPPORT gt gt gt gt gt gt gt gt lt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt lt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt lt gt gt MOTOR MOUNT DRAIN
19. Svo NiVHQ sia SLOWSY VW OL SZNO LHM qas LHW Ong LHM NYO Merle 7 9 9 919 1 12 tle 2 lt 91 2152512 9 x lt o s 2 xz 2 2 lt y 617121 AN Ajddns 0 Buipjoooe GMS 99 195 se q asim Ajddns 1eddoo esf zx Lx By 0 OU 404 y ur seuoyws dip EMS ZMS Jo Bunes 79 068195721 a aan Jojoeuuoo yoo q e oqe pesn sioquiAg 330 54 uonoeuuoo M eu sI GL Jo s 04 6 y waht si 5 681 o 1p uuo2 3N IN jo eseo ul 2 NO NO sI S 4 01 19 uuoo se jd jouu I VN jo 9522 Z nn a Peg 80d yun Joopino 29 JOOP NO 10 BUAS V L pCR Z1 NA E a E 20d ON uoueug YLMS 9 81 EMS 2 5 540 Bumes uolssiwsuel Gal aosz v9 esn4 3504 px s Bumes sseippy LEMS Aiddns zal YNZ uonoejes eBeyoA SMS uoisuedx
20. B Connect to the terminal block TB15 Connect to the terminal block TB5 MA Remote controller connecting wire M NET transmission connecting wire Between to 8 7 13V DC Pin 24 30V DC non polar 27 Indoor controller board PMFY PO6NBMU E 2 PMFY PO8NBMU E 2 PMFY P12NBMU E 2 PMFY P15NBMU E 2 PMFY POGNBMU ER3 PMFY PO8NBMU ER3 PMFY P12NBMU ER3 PMFY P15NBMU ER3 PMFY PO6NBMU ER4 PMFY PO8NBMU ER4 PMFY P12NBMU ER4 PMFY P15NBMU ER4 CND Power supply 208 230V AC FUSE 6 3A 250V CNMF1 CNMF2 FAN motor CNMF1 CNMF20 294 325V DC CNMF2 O 15V DC CNMF2G Q 0 6 5V DC 2 0 15V DC LED1 Ly power supply CN2M Connect to the terminal block TB5 M NET transmission connecting wire 24 30V DC non polar LED2 Power supply for MA Remote controller CN31 Drain sensor DS CN3A MA Remote controller connecting wire 8 7 13V DC Pin CN60 Linear expansion valve LEV CN20 Room thermistor Liquid CN6V1 aee de temperature motor g __ M Q7 go thermistor Liquid a s gig cH RG00V158 24 22 thermistor Gas TH23 CN32 Connector Remote switch Centrally control Sw2 sw3 Sw4 CN52 Capacity setting Function setting Model setting Remote indication 28 9 4 2 Address board PMFY P06NBMU E PMFY PO6NBM
21. FAN MOTOR R01 E13 105 MOTOR MOUNT gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt 01 205 527 DRAIN PIPE ASSY gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt 01 E10 527 DRAIN PIPE ASSY R01 18J 523 JOINT SOCKET G G G G G G G G G G G G G G G G G G G G G G G G G R01 E03 673 SCREW ASSY ELECTRICAL PARTS PMFY PO6NBMU E PMFY POGNBMU E PMFY PO6NBMU E 2 PMFY PO6NBMU ER3 PMFY PO6NBMU ER4 Part No PMFY PO8NBMU E PMFY PO8NBMU E PMFY PO8NBMU E 2 PMFY PO8NBMU ER3 PMFY PO8NBMU ER4 PMFY P12NBMU E PMFY P12NBMU E PMFY P12NBMU E 2 PMFY P12NBMU ER3 PMFY P12NBMU ER4 PMFY P15NBMU E PMFY P15NBMU E PMFY P15NBMU E 2 PMFY P15NBMU ER3 PMFY P15NBMU ER4 LOH 601629 Y
22. controller sensor is used timer is set switched off is shown Shows the current time unless the simple or Auto Off If the simple or Auto Off timer is set the time to be Locked indicator Indicates that remote controller but tons have been locked Shows the operating mode etc Multilanguage display is available MITSUBISHI ELECTRIC Clean The Filter indicator TIME SUN MON TUE WED THU FRI SAT f E d ON AFTER P dH d Centrally Controlled indicator Es LILII FC Indicates that operation from the remote controller has been prohib ited by a master controller AFTER OFF ON ES 888 HEIE p LINILI ONLY4Hr 385 AUTO OFF J To be displayed on when it is time to clean the filter M Timer indicators The indicator comes on if the corre sponding timer is set Timer is Off indicator Fan Speed indicator Shows the selected fan speed Up Down Air Direction indica tor Indicates that the timer is off Temperature Setting Shows the target temperature Shows the direction of the N outcoming airflow One Hour Only indicator Displays if the airflow is set to low or downward du
23. drain pump normal J ves Wiring contact check No Contact of fan motor connector FAN CNMF1 2 Replace the drain pump Is there contact failure gt Turn the power supply Power supply check Check the voltage of the indoor controller board with the connector FAN CNMF1 2 connected to the board Approx 294 325V DC between the connecter lt FAN and gt lt CNMF1 and CNMF2 OX gt Yes Is the voltage normal Replace the fan motor No OK Check the operation gt END Ne Replace the the indoor controler board Replace the indoor controller board OK Check the operation END NG Replace the fan motor 24 9 3 FUNCTION SWITCH Operation by switch 5 Switch Function Effective Remarks ON OFF timing Thermistor lt Room temperature detection gt position p Built in remote controller Indoor unit Address board Filter clogging detection Provided Not provided Initial setting Filter cleaning sign 2 500h 100h ON OFF Fresh air intake Effective Not effective 12345678910 SW1 Switching remote Thermo ON Indicating fan operation Function controller display signal display ON OFF Under setting Humidifier control Fan operation at Heating mode SN operalion at SUSpenSIEN
24. the grille 1 Check that there are no gaps between the indoor unit and the grille between the grille and the ceiling surface If there are gaps the wind may come in and condensation may result 2 Check that the air filter is in place Figure 6 Upper and lower flaps Open completely Temporary holding tabs Temporary holding tabs lt Screw cover Figure 8 Indoor unit Ceiling surface No gaps between the indoor unit and the grille Grille 31 PROCEDURE PHOTOS amp ILLUSTRATIONS 2 Removing the electrical parts box Photo 2 Claw in middle Nozzle 1 Remove the panel of nozzle 2 Remove the address board cover 3 Remove electrical parts cover 4 Disconnect the connectors of fan motor vane motor drain pump room temperature thermistor pipe temperature thermistor Liquid Gas condenser evaporator temperature thermistor and drain sensor on the electrical controller board 5 Disconnect the lead wire and earth wire from terminal Drain pan block Electrical part 6 Remove the e
25. CEDURE PHOTOS amp ILLUSTRATIONS 5 Removing the drain pump Photo 6 PDrain sensor Drain pump 1 Remove the panel 2 Unhook the claw in the middle of nozzle and remove the drain pan See Photo 2 3 Remove the address board cover See Photo 3 4 Remove the electrical parts cover See Photo 3 5 Disconnect the connector of drain pump 6 Remove the drain hose 7 Remove the drain pump 2 screws Fan motor 6 Removing the fan motor and line flow fan 1 Remove the panel 2 Unhook the claw in the middle of nozzle and remove the drain pan See Photo 2 3 Unscrew 2 screws at the nozzle side of the heat exchanger 4 Remove the address board cover See Photo 3 5 Remove the electrical parts cover See Photo 3 6 Disconnect the connector of vane motor fan motor and drain pump 7 Remove the nozzle side of the heat exchanger 2 screws 8 Remove the nozzle 9 Remove the drain pump 10 Unscrew 2 screws in the motor support 11 Remove the fan motor and line flow fan The fan motor and line flow fan can be removed without removing the Line flow fan heat exchanger Fan motor 7 Removing the thermistor lt Room temperature detection gt 1 Remove the panel 2 Remove the address board cover 3 Remove the electrical parts cover 4 Remove the thermistor lt intake temperature detector gt 5 Disconnect the lead wire from the cord clamp 5 points 6 Disconnect the connector CN20 on the indoor c
26. Changes for the Better MITSUBISHI ELECTRIC SPLIT TYPE HEAT PUMP AIR CONDITIONERS December 2009 No OC341 REVISED EDITION E TECHNICAL amp SERVICE MANUAL CITY MULTI Series Ceiling Cassettes R410A R22 Indoor unit Model names Service Ref PMFY PO6NBMU E PMFY POGNBMU E Revision PMFY PO6NBMU E 2 PMFY POGNBMU ER3 PMFY P06 08 12 15NBMU ER4 are added in PMFY PO6NBMU ER4 REVISED EDITION E Some descriptions have PMFY POSNBMU E PMFY POSNBMU E been modified PMFY POSBNBMU E42 PMFY PO8NBMU ER3 vow OC341 PMFY PO8NBMU ER4 REVISED EDITION D PMFY P12NBMU E PMFY P12NBMU E PMFY P12NBMU E or PMFY P12NBMU E42 PMFY P12NBMU ER3 Tris manual describes only service data of the PMFY P1 2NBMU ER4 indoor units 15 PMFY P15NBMU E PMFY P15NBMU E i e mam mine have lt G gt mark on the PMFY P15NBMU E42 PMFY P15NBMU ER3 name For servicing RoHS compli PMFY P15NBMU ERA ant products refer to the RoHS PARTS LIST CONTENTS 1 TECHNICAL CHANGES 2 2 2 3 PART NAMES AND FUNCTIONS 3 4 SPECIFICATION 5 5 OUTLINES AND DIMENSIONS 9 6 WIRING DIAGRAM 10 7 REFRIGERANT SYSTEM DIAGRAM 13 8 MICROPROCESSOR 14 9
27. Indoor piping liquid piping temperature indoor room temperature 18 F Indoor piping liquid piping temperature or indoor room temperature is at the short or open level temperature Every 1 hour after the drain pump has been switched from ON to OFF 3 Vane Same as the control performed during the COOL operation but with no restriction up down vane change on the vane s downward blow setting 17 8 4 HEAT lt to gt Press POWER ON OFF button MITSUBISHI ELECTRIC Press the operation MODE button to display HEAT 29 DIEI LEID i t Press the button to set the desired temperature fe NOTE The set temperature changes 2 F when the C4 button is 938 41958 pressed once Heating 63 to 83 F D ON OFF OMENU dox FILTER lt Display in HEAT operation gt BACK 5 pay 2e DEFROST Worse Rane 2 The DEFROST symbol is only displayed during the defrost operation STANDBY The STANDBY symbol is only displayed during hot adjust mode Control modes Control details 1 Functions 1 1 Minimum compressor off cycle is 3 minutes regulated by Room temperature desired temperature 2 F Thermo ON temperature Room temper
28. L dB 0 dB UNIT CEILING lt 5ft MICROPHONE in mm Unit 9 9 X 8 M 0 W lloq uorsuedsng JOOpU eoeds UOISSIUJSUEJ 10 9014 epis 1uBrs lou exer useJ4 09 8 2 2 eju epis ozvn et gt S E NEU JO epis 1 0001 9 6 Ov 91 6 L 20 99014 eui ued epis jaued gt 96 8 gj graro pinbij edid OUTLINES AND DIMENSIONS 5 PMFY PO6NBMU E E E 2 ER3 ER4 80 01 26 6 celle Vo 9 1 9 51 9 Jo 2014 5882 052 GB8Z B E LL 09209 6 6 ynoyoouy 90 7 0020 edid pinbiq er 9L LL L T O ad
29. MFY PO8NBMU E 2 PMFY P12NBMU E 2 PMFY P15NBMU E 2 PMFY PO6NBMU ER3 PMFY PO8NBMU ER3 PMFY P12NBMU ER3 PMFY P15NBMU ER3 V Hz Single phase 208 230V 60Hz Cooling capacity Btu h 6 000 8 000 12 000 15 000 Heating capacity Btu h 6 700 9 000 13 500 17 000 Input Heating kW Electric characteristi Heat exchanger Air flow 3 C FM External in WG Fan motor kw Insulator Air filter LL Pipe side dimensions Note 1 Rating conditions 5 9 Cooling Indoor Heating Indoor 0 042 230 250 280 300 250 280 300 320 Cooling kW 0 042 0 042 0 044 0 054 0 042 0 044 0 054 Current Exterior munsell symbol Height in Dimensions Width in in Unit Galvanized sheets Standard grilles ABS resin acrylic coating Munsell lt 0 98Y 8 99 0 63 gt PMFY P NBMU Eo lt 6 4 8 9 0 4 gt PMFY P NBMU E 2 ER3 ER4 9 1 16 lt 1 3 16 gt 31 15 16 lt 39 3 8 gt 15 9 16 lt 18 1 2 gt Cross fin Line flow fan x 1 270 300 340 370 0 028 Polyethylene sheet PP honey comb fabric 1 2 1 4 1 PVC pipe 20 connectable 27 30 33 35 32 34 36 37 33 35 37 39 80 W B 6 outdoor D B 95 F W B 7 D B 70 F outdoor D B 47 F W B 43 F Note 2 The number indicated in lt gt is for the grille x 3 Air flow and the noise level are indicated as Low Medium2 Medium1 High 4 2 ELECTRICAL PAR
30. NBMU E series are capable of taking air from outside When taking air from outside the duct fan is used The air capacity should be 20 or less of the airflow SPEC Hi 9 13 16 11 3 8 90 gt T a N SARS ga AS 1 AD gue Fresh air intake hole Fresh air intake hole m Knockout Knockout Unit inch Air flow Hi Air capacity taken from outside PMFY POGNBMU E E EZ2 ERS ERA 300 CFM 60CFM PMFY PO8NBMU E E1 E 2 ER3 ER4 320 CFM 64CFM sure to secure insulation __ i material by tape etc Operation in conjunction with duct fan Booster fan 5 Green e Whenever the indoor unit is operating the duct fan sel operates indoor unit lt S W gt 0 di i 1 Connect the optional multiple remote controller board Connector 5P Orange eee aX ME adaptor PAC SA88HA E to the connector CN51 Brown L dest the indoor controller board Indoor unit side Multiple cna Installation at site 2 Drive the relay after connecting the 12V DC relay controller adapter Be sire to secura insulation between the Yellow and Orange connector lines PAC SA88HA E material by tape etc Use a relay of 1W or smaller Indoor controller board MB Electromagnetic switch power relay for duct fan ea Distance between indoor X Auxiliary relay 12V DC LY 1F controller board and relay must be within 33 feet
31. ND PRESSURE LEVEL dB 0 dB FOR CONTINUOUS NOISE NTINUOUS NOISE d 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz PMFY P15NBMU E PMFY P15NBMU E NOTCH SPL dB LINE PMFY P15NBMU E 2 2 PMFY P15NBMU ER3 35 PMFY P15NBMU ER4 w 33 109 90 a 3 3 qe piu 2 ERE ded c xe 74 n A d NC 70 5 F 0 50 i t 2 INC 50 x 40 eae 30 NC 30 2 20 APPROXWATE os NOISE 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz PMFY P08 12NBMU E PMFY P08 12NBMU E worcu sPL dB LINE PMFY P08 12NBMU E 2 gn 27 PMFY P08 12NBMU ER3 medium2 34 PMFY P08 12NBMU ER4 90 80 0 0002 ubar 70 60 50 40 30 20 APPROXIMATE i i THRESHOLD OF LETNE HEARING FOR CONTINUOUS NOISE f I 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVE
32. PIPE ASSY g E G G G G G G G G G G G G G G G G G G G G G G G G G SCREW ASSY 38 FUNCTIONAL 5 PMFY P06NBMU E 2 PMFY P08NBMU E 2 PMFY P12NBMU E 2 PMFY P15NBMU E 2 PMFY P06NBMU ER3 PMFY P08NBMU ER3 PMFY P12NBMU ER3 1 PMFY P15NBMU ER3 PMFY P06NBMU ER4 PMFY P08NBMU ER4 PMFY P12NBMU ER4 PMFY P15NBMU ER4 Part number that is circled is not shown in the figure Part No Part Name RoHS Specification Q N M N Q tylset PMFY P NBMU E 2 ER3 ER4 06 08 12 15 06 08 12 15 Remarks Drawing No R01 23A 102 BEARING MOUNT 1 1 1 1 R01 E04 103 SLEEVING BEARING R01 E32 114 LINE FLOW FAN R01 E01 079 STABILIZER ASSY R01 E18 223 VANE MOTOR R01 E02 092 VANE SLEEVE 1 1 1 1 1 1 1 1 1 1 T7W 92 480 HEAT EXCHANGER 1 1 1 1 1 1 1 1 1 1 1 1 T7W H93 480 HEAT EXCHANGER 01 E30 529 DRAIN PAN ASSY N N R01 H12 202 THERMISTOR ROOM e R01 E03 038 GUIDE VANE R01 N15 202 THERMISTOR LIQUID GAS R01 H06 401 EXPANSION VALVE R01 E16 002 R01 E05 110 CASING ASSY R01 32K 241 SENSOR HOLDER R01 E11 266 DRAIN SENSOR T7W E11 355 DRAIN PUMP R01 E35 130 MOTOR SUPPORT R01 E49 220
33. REVISED EDITION A PDF 9 2005 No OC341 PDF 10 Distributed in Dec Distributed in Dec Distributed in May Distributed in Jul Distributed in Aug Distributed in Jun Made in Japan New publication effective Dec 2009 Specifications subject to change without notice
34. SVI3 ZE YMS g 1 Sec 5 EMS 9 e 5 6 22 UAS V3 Z 9poo Ayoedeg youms ZMS 5 9 pinbi1 edid 2241 Uoneoipu ZSNO 281 s 5 22 OI UA 2 Ajjequed ISNO Sal uonoejep dwa Jojsiuueu L LZHL U91IMS ZENO z s INN SEHE 5 9181 Jjedureg 12NO H09 i E UOISSIUJSUEJ SaL ioj uuoO SZNO Aldd 5 Esc IX3NOL K ddns 7281 pieoq 1 llonuoo Joopu 91 asna 1119 2 reqs ous M3TIOMINOO SLOWSY _ H3TIOMINOO puebe1 MWJTIOHINOO 98 SLOWSY VW OL LINN OL 12 7 REFRIGERANT SYSTEM DIAGRAM PMFY PO6NBMU E PMFY POGNBMU E PMFY PO6NBMU E 2 PMFY PO6NBMU ER3 PMFY PO6NBMU ER4 PMFY PO8NBMU E 8 PMFY P08NBMU E 2 PMFY P08NBMU ER3 PMFY P08NBMU ER4 PMFY P12NBMU E PMFY P12NBMU E PMFY P12NBMU E 2 PMFY P12NBMU ER3 PMFY P12NBMU ER4 PMFY P15NBMU E PMFY P15NBMU E PMFY P15NBMU E 2 PMFY P15NBMU ER3 PMFY P15NBMU ER4 Thermistor TH23 lt Gas pipe temperature detection gt Strainer 100mesh Gas pipe L Thermistor TH22 lt Liquid pipe temperature de
35. TEST D gt VOPERATIONA 21 CLOCK Control modes 2 Mode change 1 HEAT mode COOL mode 2 COOL mode HEAT mode 3 COOL mode Same control as cool operation 4 HEAT mode Same control as heat operation Control details 1 Initial value of HEAT mode for room temperature lt Desired temperature operation mode COOL mode for room temperature Desired temperature Room temperature Desired temperature 3 F or 3 minutes has passed Room temperature Desired temperature 3 F or 3 minutes has passed 8 6 WHEN UNIT IS STOPPED Control modes Control details 1 Drain pump 1 1 Drain pump control The drain pump turns ON for the specified amount of time when any of the following conditions is satisfied regardless of whether the compressor is ON or OFF ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode HEAT mode ON for 6 minutes after the drain sensor is determined to be submerged using the liquid level detection method given below ON for 6 minutes after indoor piping liquid piping temperature indoor room temperature 14 F and the drain sensor input is at the short or open level If condition is still being met after the drain pump has been turned ON for 6 minutes the drain pump is kept ON for a further 6 minutes Liquid
36. TS SPECIFICATIONS Service Ref Parts name PMFY POGNBMU E PMFY PO8NBMU E 12 PMFY P15NBMU E PMFY POGNBMU E PMFY PO8NBMU E1 PMFY P12NBMU E PMFY P15NBMU E PMFY POGNBMU ER4 PMFY PO8BNBMU ERA4 PMFY P12NBMU ER4 PMFY P15NBMU ER4 Room temperature thermistor Resistance 30 F 15 8kQ 50 F 9 6kQ 70 6 80 F 4 8kQ 90 F 3 9kQ 100 3 2 Liquid pipe thermistor Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ 100 3 2 Gas pipe thermistor Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ 100 3 2 Fuse Indoor controller board 250V PMFY P NBMU E 250V 6 PMFY P NBMU E 2 ER3 ER4 Fan motor DC Brushless Motor 8 pole OUTPUT 28W PNOH28 MB Vane motor MSFJC 20M23 12V 3800 Drain pump PJV 1063 208 240V 50 60Hz Drain sensor Thermistor resistance 30 F 6 3kQ 50 F 3 9kQ 70 F 2 5kQ 80 F 2 0kQ 90 F 1 6kQ 100 F 1 3kQ Linear expansion valve DC12V Stepping motor drive port dimension 3 2 0 2000pulse EDM 40YGME Power supply terminal block L1 L2 GR Rated to 330V 30A Transmission terminal block M1 M2 S Rated to 250V 20 MA remote controller terminal block 1 2 Rated to 250V 10 Note Refer to WIRING DIAGRAM for the supplied voltage 4 3 AIR FROM OUTSIDE PMFY P
37. U E PMFY PO6NBMU E 2 PMFY PO6NBMU ER3 PMFY PO6NBMU ER4 SW1 PMFY PO8NBMU E PMFY PO8NBMU E PMFY P08NBMU E 2 PMFY P08NBMU ER3 PMFY P08NBMU ER4 SW5 Voltage selector Function setting SW12 Address setting 10ths DIGIT PMFY P12NBMU E PMFY P12NBMU E PMFY P12NBMU E 2 PMFY P12NBMU ER3 PMFY P12NBMU ER4 PMFY P15NBMU E PMFY P15NBMU E PMFY P15NBMU E 2 PMFY P15NBMU ER3 PMFY P15NBMU ER4 5412 ooo e eee 299 ju o Or 1094 194 7 riy 00000000 29 Address setting 1s DIGIT SW14 Branch No 10 DISASSEMBLY PROCEDURE PMFY PO6NBMU E PMFY PO6NBMU E PMFY PO6NBMU E 2 PMFY PO6NBMU ER3 PMFY PO6NBMU ER4 PMFY PO8NBMU E PMFY PO8NBMU E PMFY PO8NBMU E 2 PMFY PO8NBMU ER3 PMFY PO8NBMU ER4 PMFY P12NBMU E PMFY P12NBMU E PMFY P12NBMU E 2 PMFY P12NBMU ER3 PMFY P12NBMU ER4 PMFY P15NBMU E PMFY P15NBMU E PMFY P15NBMU E 2 PMFY P15NBMU ER3 PMFY P15NBMU ER4 Be careful when removing heavy parts PHOTOS amp ILLUSTRATIONS Photo 1 OPERATING PROCEDURE 1 Removing the grille Opening the air intake grille Air intake grille Air outlet 1 Press the PUSH of the air intake grille See Figure 1 grille 8 7 8 3 5 EE y 2 Put your fingers on the both ends of nut of the air intake grille and put it down after the grille clicked
38. Yellow 2 Red 5 Measure the resistance between the terminals with tester At the ambient temperature 68 F 86 F Connector Normal Abnormal Brown Yellow Brown Red 3800 7 Open short Brown Orange Brown Green Linear expansion valve LEV BI Brown lue Yellow ORONO Red Orange White Disconnect the connector then measure the resistance with a tester Normal Abnormal Orange Red 2000 10 Refer to the next page for the details White Red Yellow Brown Blue Brown Open or short Drain pump DP Blue Measure the resistance between the terminals with a tester At the ambient temperature 68 Normal Abnormal Blue 4000 4800 Open or short Drain sensor DS Le Measure the resistance after 3 minutes have passed since the power supply was turned off At the ambient temperature 32 F 140 F Normal Abnormal 0 6kQ 6 0kQ Open or short Refer to the next page for the details 21 lt Thermistor characteristic graph gt lt Thermistor for lower temperature gt 50 Thermistor for Thermistor lt Room temperature detection gt TH21 lower temperature Thermistor lt Liquid pipe temperature detection gt TH22 40 Thermistor lt Gas pipe temperature detection gt 23 Thermistor R
39. ature desired temperature Thermo OFF Controlled by the remote controller 4 speed Priority is given to below mentioned control mode 2 1 Stand by hot adjust mode 2 2 Preheating exclusion mode 2 3 Thermo OFF mode When the compressor off by the thermoregulating 2 4 Cool air prevention mode Defrosting mode 2 1 Stand by hot adjust mode The fan controller becomes the stand by hot adjust mode for the following conditions When starting the HEAT operation When the thermoregulating function changes from OFF to ON When releasing the HEAT defrosting operation Hot adjust mode 1 x1 STAND BY Set fan speed by the remote controller will be displayed during the stand by hot adjust mode Extra Low O B A Stand by hot adjust mode start B 5 minutes have passed since the condition A or the indoor liquid pipe temperature turned 95F or more C 2 minutes have passed since the condition A Terminating the stand by hot adjust mode x1 This control is same for the model without 1 minute auxiliary heater 2 2 Preheating exclusion mode When the condition changes the auxiliary heater ON to OFF thermoregulating or operation stop etc the indoor fan operates in Low mode for To be continued to the next page 18 From the preceding page Control modes 2 Fan 3 Drain pump 4 Vane control Up down vane change Control details 2 3 Thermo OFF mode When the th
40. e I any leaking detecting temperature of the thermistor will go lower If the detected temperature is much lower than the tem perature indicated in the remote controller it means the valve is not closed all the way It is not necessary to exchange the linear expansion valve if the leakage is small and not affecting normal operation Linear expansion valve If large amount of refriger ant is leaked exchange the linear expansion valve Wrong connection of the connector or contact failure Check the color of lead wire and missing terminal of the con nector Disconnect the connector at the controller board then check the continuity 23 9 2 Check method of indoor motor fan motor controller board D Notes High voltage is applied to the connecter FAN CNMF1 2 for the fan motor Pay attention to the service Do not pull out the connector FAN CNMF 1 2 for the motor with the power supply on doing so may result in damage to the board FAN PMFY P06 08 12 15NBMU E PMFY P06 08 12 15NBMU E1 CNMF1 2 PMFY P06 08 12 15NBMU E 2 _ PMFY P06 08 12 15NBMU ER3 PMFY P06 08 12 15NBMU ER4 Self check Symptom The indoor fan can not rotate Indoor controller board fuse check Is the resistance No Yes Replace the fan motor Is the fuse normal between the terminals of Replace the indoor controller board
41. e jeaur 31 YMS youms LMS JOSUdS sa EMS sseJppyv av da epoo Ayoedeg youms ZMS 4 JOJOW Wi s dure lt uo ZHL 1euut uw asas a Gunna GND ejoules v N Ajddns Jamog 10 Jamog 5 5 4 OAS 1 Addns samod 2031 uols lou s ZENO 18 beri lt uo Addns J wod uen La31 pinbi1 uonoejep duu edid Aiddns samog 1037 jedueq 1ZNO 2 802210 Joopul jddns 5 4 27 01914 26 L SZNO uonjoun4 uonoejep dwa ejerxny X 1oopul gi O9IAJ8S 10 pJeoq JOOPU uo 04 6 04 6 joquids pus6e7 10 PMFY P12NBMU E PMFY P15NBMU E PMFY PO8NBMU E POGNBMU E PMFY da 9
42. emperature setting buttons ON OFF button Cv Down CA Up Fan Speed button MITSUBISHI ELECTRIC Timer Menu button Monitor Set button Filter button Mode button Return button lt Enter gt button ON OFF Test Run button EIL CO CoO UM UU Check button Gear buton CS D Back OMENU ONOFF Pal Ahead Ss MONITORISET DAY 33285 TEST gt C Airflow Up Down button Timer On Off button PAR 21MAA VOPERATONA N Set Day button Louver button Operation button To return operation Opening the number lid Ventilation button yy SN _ A Operation button Built in temperature sensor go to next operation number Display Section For the purposes of this explanation all parts of the display are shown During actual operation only the relevant items will be lit Identifies the current operation e Wired remote controller Day of Week Shows the current day of the week Sensor indication Display Displays when the remote
43. ermoregulating function changes to OFF the indoor fan operates in Extra low 2 4 Heat defrosting mode The indoor fan stops No drain pump operation However when the control changes from COOL or DRY operation the drain pump operates for 3 minutes 1 Initial setting OFF HEAT last setting When changing the mode from exception of HEAT to HEAT operation Downward C 2 Vane position Downward Downward B Downward C Swing 3 of vane position The vane is horizontally fixed for the following modes The control by the remote controller is temporarily invalidated and controlled by the unit Thermo OFF Stand by hot adjust Extra low mode Heat defrost mode 19 Remarks 8 5 AUTO OPERATION AUTOMATIC COOL HEAT CHANGE OVER OPERATION lt How to operate gt ae MITSUBISHI ELECTRIC 0 Press POWER ON OFF button BACK 5 FI Fit 258 Press the operation button to display AUTO Press the button to desired temperature m NOTE The set temperature changes 2 F when the button is TEMP ON OFF pressed once Automatic 67 to 83 F 2 A When AUTO mode the unit will switch from either heat cool L0 CD Ou automatically to maintain the set temperature 2386 4 CHEK
44. gt me Go oe Press POWER ON OFF button e d Press the operation MODE button to display DRY ERE Press the TEMP button to set the desired temperature NOTE The set temperature changes 2 F when the Gor Ca button is COCO oC pressed once Dry 67 to 87 F Opono OMENU Pal _ Co C 340 1 BACK MONIORISET DAY I 2386 46 CHEK TEST A 29 PAR 21MAA CLOCK VOPERATION A CLEAR Control modes Control details 1 Functions regulated 1 1 Dry mode temperature is controlled by TH21 by temperature Dry mode ON Room temperature desired temperature 2 F Dry mode OFF Room temperature desired temperature Room 3 min passed since starting operation temperature Room temperature Ta Ta 83 F 83 F gt Ta 79 F ON Over 64 F 79 F gt Ta Z 75 F 75 F gt Ta FF Dry mode OFF 1 2 Frozen prevention control No control function Indoor fan operation control depends on the compressor conditions Dry mode Fan speed notch ON Low OFF Stop Note Remote controller setting is not acceptable 3 Drain pump Same control as COOL operation 4 Vane Same control as COOL operation up down vane change 16 8 3 lt How to operate gt e MITSUBISHI ELECTRIC _ i Press POWER ON OFF button ma DO s ER Pres
45. i P15NBMU c x c x lou 8 2 8 27 N 206 lou exejur us u JO siie q 5 Szg ze egd iloz dA edid Buidid eDeureiq e adid seo 2 N gt LL 92 2 2 edid Jo Jo W 0 9 61 91 90 S ouw ks 209 Bulle youd yoq uoisu dsns 0 8 2 2 Sot tee youd uoisu dsns 8 Buiuedo 096 jo epis 0001 v1 91 6 S 79200 Z0 8 2 L4 S6E 9L 6 SL eju Jo epis 19 nO dol WIRING DIAGRAM 6 PMFY PO6NBMU E PMFY PO8NBMU E PMFY P12NBMU E PMFY P15NBMU E
46. lectrical parts box Photo 3 oe Address board 3 Removing the nozzle Photo 4 Note when the nozzle is removed insulation material white which prevents water drop is mounted to the side of vane motor Remove the insulation material before removing nozzle See Figure 4 After completing the service re mount the insulation material as before as shown in right figure Vane motor After service mount the double layer insulation without fail The hard material side should be faced toward the nozzle See Figure 4 Electrical parts Heat exchanger 1 R Room temperature thermistor emove the panel 2 Remove the room temperature thermistor Figure 9 9 Unhook the claws in the middle of nozzle and remove the drain pan 5 screws See Photo 2 Hard side of insulation 4 Remove the nozzle side of the heat exchanger 2 screws 5 Remove the address board cover See Photo 3 6 Remove the electrical parts cover See Photo 3 7 Disconnect the connector of vane motor 8 Remove the insulation material white on the right side of nozzle 9 Remove the nozzle 6 screws Insulation material Soft side of insulation Vane motor 4 Removing the vane motor Photo 5 1 Remove the nozzle Refer to above mentioned 3 Removing the nozzle 2 Remove the vane motor from the nozzle Vane motor 32 OPERATING PRO
47. level detection method The liquid level is detected by determining whether or not the drain sensor is submerged based on the amount the temperature rises after self heating the sensor This process is performed if any of the following conditions is satisfied Drain pump is ON Indoor piping liquid piping temperature indoor room temperature 14 F except during defrosting Indoor piping liquid piping temperature or indoor room temperature is at the short or open level temperature Every 1 hour after the drain pump has been switched from ON to OFF 20 9 TROUBLESHOOTING 9 1 HOW TO CHECK THE PARTS PMFY PO6NBMU E PMFY POGNBMU E PMFY PO6NBMU E 2 PMFY PO6NBMU ER3 PMFY PO6NBMU ER4 Parts name PMFY PO8NBMU E PMFY PO8NBMU E PMFY P08NBMU E 2 PMFY P08NBMU ER3 PMFY P08NBMU ER4 PMFY P12NBMU E PMFY P12NBMU E PMFY P12NBMU E 2 PMFY P12NBMU ER3 PMFY P12NBMU ER4 PMFY P15NBMU E PMFY P15NBMU E PMFY P15NBMU E 2 PMFY P15NBMU ER3 PMFY P15NBMU ER4 Check points Thermistor TH21 lt Room temperature detection gt Thermistor TH22 lt Liquid pipe temperature detection gt Thermistor TH23 lt Gas pipe temperature detection gt Disconnect the connector then measure the resistance with a tester At the ambient temperature 50 F 86 F Normal Abnormal 4 3kQ 9 6kQ Refer to the next page for the details Open or short Vane motor MV Green Orange
48. lo uuoo o o o 00 4 ENO 0 quy 440 NO 020 LA9NO Cum oh S y NO ui pesn sjoqu s 76 E Sy IMS 1 1 uonoeuuoo pl lus eui S GAL Jo s Ioqui S d HM ng jejod uou s UOISSIUSUEJ Olz SCNO veno HOT Tio UOISS 1 3 GGL 01 12euuoo se ld 3N IA Jo eseo ul 2 TAR DIVLNI LINA zrg 4ejod uou si 1 llo uoo S g L HL va i9lz Io o Jo uuoo se ld Jo 9520 ul z jun JOOP NO lo ueJ8eip Buum ay Mojo 100pjno s NS 9jo lo N HW HELSA gt 0000 fof LAWNS Lz LOOOO Z4AWNO uoisuedxe jeeur sa o LEND cv98 Josues Sa Lx e JO OW AN Wing ZOsNZ r1 ue3 WI A6 LONNZ W H ON youesg vLMS 9 Aiddns jewog 2057 da eoa 5180 Humes sseuppy Z NS Aiddns 1037 s sseJppv LLMS Aejarxny 57 mg uol l s SMS 1 6 91 3504 ma 9504 6 je uonoe es apo yoyms LMS YNZ na 0 o o pJeoq sseippy v 300N 1S31 3NIHOVN dN 3MS 5 4 O
49. lure of the micro processor Check points Disconnect the connector on the controller board then con nect LED for checking j 4p 6 hs w 4 w 3 2 1 1 LED When power is turned on pulse signals will send for 10 seconds If the LED does not light or keeps lighting even after the signals stop that means some failures in the operation circuit Countermeasures Exchange the indoor con troller board at drive circuit failure Linear expansion valve mechanism is locked Motor will idle and make a ticking noise when the motor is operated while the linear expansion valve is locked This tick ing sound is the sign of the abnormality Exchange the linear expan sion valve Short or breakage of the motor coil of the linear expansion valve Measure the resistance between each coil white red yellow brown orange red blue brown with a tester It is normal if the resistance is in the range of 200Q 10 Exchange the linear expan sion valve Valve does not close completely To check the linear expansion valve operate the indoor unit in fan mode and at the same time operate other indoor units in cooling mode then check the pipe temperature liquid pipe temperature gt of the indoor unit by the outdoor multi controller board operation monitor During fan operation linear expan sion valve is closed completely and if there Thermistor I 7 Liquid pip
50. o 15kQ 3 4 Fixed number of B 3480 2 8 8 20 1 1 Rt 15exp 3480 _ 273 t 32 1 8 273 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ Er 0 20 40 60 80 100 120 80 F 4 8kQ Temperature F E Ru T lt Thermistor for drain sensor gt Thermistor for drain sensor Drain sensor DS Thermistor Ro 6 0kQ 5 8 Fixed number of B 3390 2 8 339 E 273 t 32 1 8 273 x 30 F 6 3 90 F 1 6kQ 50 F 3 9kQ 100 F 1 3kQ 709 2 5kQ 140 F O 6kQ 80 F 2 0kO 20 40 60 80 100 120 140 170 Temperature F Linear expansion valve Operation summary of the linear expansion valve Linear expansion valves open close through the use of a stepping motor after receiving the pulse signal from the indoor controller board Valve position be changed in proportion to the number of pulse signals lt Connection between the indoor controller board and the linear expansion valve gt Controller board DC12V Linear expansion valve Brown eS SS M 4 Blue Red Drive circuit A oce p4 Blue S 6 T 3 Orange 3 NP Yellow l 5 2 Y 1 3 22 Yellow 2 192 White Red orange k 1 White 2134 M Connector CN60 Note Since the n
51. ontroller board 8 Removing the thermistor lt Liquid pipe temperature detection gt lt Gas pipe temperature detection gt 1 Remove the panel 2 Remove the address board cover 3 Remove the electrical parts cover 4 Remove the drain pan 5 Remove the thermistor lt Gas pipe temperature detection gt lt Liquid pipe temperature detection gt 6 Disconnect the lead wire from the cord clamp 7 Disconnect the connector CN21 CN29 CN44 on the indoor controller board Connector CN21 Liquid NBMU CN29 Gas NBMU q CN44 Liquid and Gas NBMU 2 NBMUR3 NBMURA 11 PARTS LIST non RoHS compliant PANEL PARTS FOR PMFY PO6NBMU E PMFY PO8NBMU E PMFY P12NBMU E PMFY P15NBMU E PMP 16BMU 10 11 10 2 Q ty set Remarks Wiring Recom Part Name Specification Drawing No Diagram mended 2 PMP 16BMU Symbol Q ty AIR OUTLET GRILLE LATCH PANEL HOOK GRILLE CATCH L L FILTER L L FILTER INTAKE GRILLE GRILLE CATCH RECEIVER COVER MAGNET SCREW CAP oO P Ww ND NI N N 34 FUNCTIONAL PARTS PMFY P06NBMU E PMFY P08NBMU E PMFY P12NBMU E PMFY P15NBMU E WWW YEN Part number that is circled is not shown the figure Q ty set ificati Remarks Part
52. r a fixed Drain sensor Indoor controller board temperature to the one before energizing and judges whether the sensor is in CN31 1 the air or in the water 2 Basic control system 3 While drain pump is turned on it will repeat the following control system and judge duration After energizing the circuit board compares the drain sensor s whether the sensor is in the air or in the water Timing of energizing drain sensor a minute Detect the temperature before energizing 0 Detect the Judge whether temperature the sensor is in after lt air or in the energizing water T1 Drain sensor temperature rise t Temperature of drain sensor before current is applied To Temperature of drain sensor after current is applied t T1 To 4 Vane 1 Initial setting Start at COOL mode and horizontal vane x1 up down vane change 2 Vane position Horizontal Downward Downward Downward C Swing Only 1 Hr 1 appears the 3 Restriction of the downward vane setting wired remote When setting the downward A B or C in Medium1 Medium2 or Low of controller the fan speed notch the vane changes to horizontal position after 1 hour has passed 15 8 2 aM MITSUBISHI ELECTRIC lt How to operate
53. ring COOL or DRY mode Operation varies according to model The indicator goes off in one hour when the airflow direction also changes Room Temperature display Ventilation indicator Shows the room temperature The room temperature display range is 46 102 F Appears when the unit is running in Ventilation mode The display blinks if the temperature is less than 46 F or 102 F or more Louver display Indicates the action of the swing louver Does not appear if the louver is not running Power On indicator Indicates that the power is on Note e PLEASE WAIT message This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure e NOT AVAILABLE message This message is displayed if an invalid button is pressed to operate a function that the indoor unit does not have If a single remote controller is used to operate multiple indoor units simultaneously that are different types this message will not be displayed as far as any of the indoor units is equipped with the function 4 SPECIFICATION 4 1 SPECIFICATIONS PMFY PO6NBMU ER4 PMFY PO8NBMU ER4 PMFY P12NBMU ER4 PMFY P15NBMU ER4 PMFY POGNBMU E PMFY PO8NBMU E PMFY P12NBMU E PMFY P15NBMU E PMFY POGNBMU E 1 PMFY POSNBMU E 1 PMFY P12NBMU E PMFY P15NBMU E Item PMFY POGNBMU EZ2 P
54. s the operation MODE button to display FAN lt SSS a ORME D ON OFF MENU ONOFF T FILTER UO BACK DAY 38 _4 CHECK TEST CAJ 21 CLOCK VOPERATIONA CLEAR Control modes Control details Set by remote controller Type Fan speed notch 4 speeds type Low Medium2 Medium1 High 2 Drain pump 2 1 Drain pump control The drain pump turns ON for the specified amount of time when any of the following conditions is satisfied ON for 3 minutes after the operation mode is switched from COOL DRY to another operation mode FAN ON for 6 minutes after the drain sensor is determined to be submerged using the liquid level detection method given below ON for 6 minutes after indoor piping liquid piping temperature indoor room temperature 18 F AND the drain sensor input is at the short or open level If condition or is still being met after the drain pump has been turned ON for 6 minutes the drain pump is kept ON for a further 6 minutes Liquid level detection method The liquid level is detected by determining whether or not the drain sensor is submerged based on the amount the temperature rises after self heating the sensor This process is performed if any of the following conditions is satisfied Drain pump is ON
55. tection gt Flare connection Heat exchanger E Liquid pipe Strainer Linear expansion valve 50mesh Strainer 100mesh Strainer pipe 100mesh Thermistor TH21 lt Room temperature detection gt Unit in mm PMFY P06 P08 P12 P15NBMU E PMFY P06 P08 P12 P15NBMU E1 PMFY P06 P08 P12 P15NBMU E 2 PMFY P06 P08 P12 P15NBMU ER3 PMFY P06 P08 P12 P15NBMU ER4 1 2 12 7 Liquid pipe 14 6 35 PMFY P06 PO8NBMU E PMFY P06 PO8NBMU E1 PMFY P06 PO8NBMU E 2 PMFY P06 PO8NBMU ER3 PMFY P06 PO8NBMU ER4 Capillary tube 1 0 D A4 6 x 1 0 23 4 x 2 200 0 D 43 6 x I D 2 4 x 200 Unit mm PMFY P12 P15NBMU E PMFY P12 P15NBMU E1 PMFY P12 P15NBMU E 2 PMFY P12 P15NBMU ER3 PMFY P06 PO8NBMU ER4 Capillary tube 2 0 83 6 x I D 2 4 x 80 13 8 MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 8 1 COOL OPERATION MITSUBISHI ELECTRIC lt How to operate gt wa Go oe Press POWER ON OFF button go 0 Press the operation MODE button to display COOL Press the TEMP button to set the desired temperature NOTE The set temperature changes 2 F when the v or C2 button is oC pressed once Cooling 67 to 87 F OMENU ONOFF al Ts FILTER C OC 3 D DAY I 2386 46 CHK TEST o PAR 21MAA V OPERATION A CLEAR
56. umber of the connector at the controller board side and the relay connector are different follow the color of the lead wire 22 lt Output pulse signal and the valve operation gt Output Output Phase 1 2 3 4 Closing a valve 1525 354 1 Opening a valve 4 gt 352 514 1 ON OFF OFF ON The output pulse shifts in above order 2 ON ON OFF OFF When linear expansion valve operation stops all output phase 3 OFF ON ON OFF become OFF 4 OFF OFF ON ON At phase interruption or when phase does not shift in order motor Linear expansion valve operation does not rotate smoothly and motor will lock and vibrate Qu DO When the switch is turned on 2200 pulse closing valve signal will be sent till it goes to point amp in order to define the valve position gt When the valve moves smoothly there is no sound or vibration 5 occurring from the linear expansion valves however when the 8 pulse number moves from to or when the valve is locked more sound can be heard than in a normal situation 9 8 Sound can be detected by placing the ear against the screw driver E handle while putting the screw driver tip to the linear expansion gt valve 2000 pulse Opening a valve all the gt 9 Pulse number Extra tightening 80 100pulse Trouble shooting Symptom Operation circuit fai
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