technical & service manual - Mitsubishi Electric Cooling & Heating
Contents
1. Address board When attaching the optional high performance Initial setting O77 Option filter elements multi function casement to Standard the unit be sure to attach it to the option lel side in order to prevent the airflow reducing OAT amp swt 1 Address board 51 12 SW 1 How to set address lt Initial setting gt Example If address is 3 remain SW12 swi2 SW 10ths digit for over 10 at 0 and match SW11 for 1 to 9 VAIN ANN with 3 er eas address Kost N sX power supply ON How to set branch number SW14 Series R2 only Initial setting Match the indoor unit s refrigerant pipe with the BC SW14 contoller s end connection number Remain other than series R2 at O setting SW12 Rotary switch SW14 Branch No setting Rotary switch 27 Switch Operation by switch Effective timing Remarks J41 J42 Wireless remote controller Pair No To operate each indoor unit by each remote controller when installed 2 indoor units or more are near Pair No setting is necessary Pair No setting is available with the 4 patterns Setting patters A to D Make setting for J41 J42 of indoor controller board and the Pair No of wireless remote controller You may not set it when operating it by one remote controller Setting for indoor unit Jumper wir2. 6 4 50 100 4 6 8 CMM 150 200 250 CFM Air flow rate 6 OUTLINES AND DIMENSIONS PLFY P12NBMU E R1 PLFY P24NBMU E R1 25 32 1 25 32 20 45 Ceiling hole 33 27 32 to 35 13 16 860 910 1 29 32 to 1 25 32 20 45 PLFY P15NBMU E R1 PLFY P30NBMU E R1 PLFY P18NBMU E R1 PLFY P36NBMU E R1 Unit inch mm Detail connecting of branch duct Both aspects ead 31 7 8 810 8 ee 3 1516 resh air Suspension bolt pitch 5 3 15 16 100 z 100 intake hole 6 16 5 i eda 3 17 32 90 1713290 8 160 ay 00 SS E Cut out hole 7 i e i eg ec s els aS S BE dE x 3 E 4 L Eg X X For MA Remote controller 5 terminal block 8 S 2 a BS S Indoor unit Outdoor unit wal os N Le Branch duct hole connecting terminal block 52 9 Fe X ES 22 2 lt e a ofS i i oo eU E S kit 3 n N Branch 0175 6 7 8 14 1 8 14 2 8 erminal bloc aN A duct hole Burring hole pitch Burring hole z 05 29 32 0150 LL o gt z e 9 L ex Cut out hole BE 2 R Detail drawing of fresh air intake hole qb 7 3 8 6
3. Pd Connector CN60 Note Since the number of the connector at the controller board side and the relay connector are different follow the color of the lead wire lt Output pulse signal and the valve operation gt Output Output Closing valve 1525 3 gt 4 1 Phase 1 5 3 4 Opening a valve 4 3 2 1 4 The output pulse shifts in above order g1 ON OFF OFF ON 2 ON ON OFF OFF pos i i en 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 does not rotate smoothly and motor will lock and vibrate Linear expansion valve operation e When the switch is turned on 2200 pulse closing valve signal will Open 4 be sent till it goes to point amp in order to define the valve position When the valve moves smoothly there is no sound or vibration occurring from the linear expansion valves however when the pulse number moves from to or when the valve is locked more sound can be heard than in a normal situation 8 Sound be detected by placing the ear against the screw driver S handle while putting the screw driver tip to the linear expansion E T valve a 2 cA 5 Open Outdoor unit R410A model 1400 pulse Outdoor unit R22 model 2000 pulse Opening a valve all the way Close
4. 22 11 DISASSEMBLY PROCEDURE 31 PARTS CATALOG OCB421 CITY MULTI 1 TECHNICAL CHANGES PLFY P12NBMU E PLFY P12NBMU ER1 PLFY P15NBMU E PLFY P15NBMU ER1 PLFY P18NBMU E PLFY P18NBMU ER1 PKFY P24NBMU E PLFY P24NBMU ER1 PKFY P30NBMU E PLFY P30NBMU ER1 PKFY P36NBMU E PLFY P36NBMU ER1 INDOOR CONTROLLER BOARD I B has been changed 2 FEATURES Models PLFY P12NBMU E PLFY P15NBMU E PLFY P18NBMU E PLFY P24NBMU E PLFY P30NBMU E PLFY P36NBMU E Cooling capacity Heating capacity 12 000 13 500 Btu h 15 000 17 000 Btu h 18 000 20 000 Btu h 24 000 27 000 Btu h 30 000 34 000 Btu h 36 000 40 000 Btu h Ni 1 WIDE AIRFLOW The new wide shape vane capable of wide angle air supply provides comfort even at the corners of a room regardless of cooling and heating operation A reduction in the air speed by 20 compared to the conventional product eliminates uncomfortable draft sensation for friendly air conditioning E i WAVE AIRFLOW SYSTEM HEATING MODE The wave airflow system has 4 vanes where each vane runs independently Repeating of horizontal and down blows with a time lag allows the conditioned warm air to be distributed even to room corners thus preventing uneven room temperature distribution Tc T s AUTOMATIC AIR SPEED ADJUSTMENT MODE The automatic air speed adjustment mode is provided in add
5. NC 30 is I TSS o 200 m ig Approximate minimum XY 5 45 0 _ audible limit on N 20 continuous noise N i 100 M 63 125 250 500 1k 2k 4k 8k Octave band center frequencies Hz PLFY P36NBMU E PLFY P36NBMU ER1 External static pressure OPa Power source 208 230V 60Hz High 60Hz Middlei 60Hz i Low 60Hz Middle2 60Hz 700 ig 650 ES iw 600 ica _ NC 60 hcs hcs L 1 30 if ah Octave band pressure level dB 0dB e 20 0 _ Approximate minimum 15 0 audible limit on NC 20 continuous noise 10 0 63 125 250 500 1k 2k 4k 8k Octave band center frequencies Hz 4 4 ELECTRICAL PARTS SPECIFICATIONS Service Ref Symbol PLFY P12NBMU E PLFY P15NBMU E PLFY P18NBMU E PLFY P24NBMU E PLFY P30NBMU E PLFY P36NBMU E Paris name PLFY P12NBMU ER1 PLFY P15NBMU ER1 PLFY P18NBMU ER1 PLFY P24NBMU ER1 PLFY P30NBMU ER1 PLFY P36NBMU ER1 TH21 Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ 100 F 3 2kQ Liquid pipe thermistor TH22 Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ 100 F 3 2kQ Gas pipe thermistor TH23 Resistance 30 F 15 8kQ 50 F 9 6kQ 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kQ 100 F 3 2kQ Fuse Indoor cont
6. Pulse number Extra tightening 200 800 pu Trouble shooting Symptom Check points Countermeasures Operation circuit failure of the micro processor Linear expansion valve mechanism is locked Short or breakage of the motor coil of the linear expansion valve Disconnect the connector on the controller board then con nect LED for checking Exchange the indoor con troller board at drive circuit failure NURO 1kQ LED When power is turned on pulse signals will output for 10 seconds There must be some defects in the operation circuit if the LED does not light while the signals are output or keeps lighting even after the signals stop 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 vale Measure the resistance between each coil white red yellow brown orange red blue brown using a tester It is normal if the resistance is in the range of 150Q 10 Exchange the linear expan sion valve Valve does not close completely Wrong connection of the connector or contact failure 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 lt liquid pipe temperature gt of the indoor unit by the outdoor mul
7. From the preceding page Control modes 2 Fan 3 Drain pump 4 Vane control Up down vane change Control details Remarks 2 3 Thermo OFF mode When the thermoregulating function changes to OFF the indoor fan operates in Extra low 2 4 Heat defrosting mode The indoor fan stops 3 1 Drain pump control The drain pump turns ON for the specified amount of time when any of the following conditions is met D ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode FAN ON for 6 minutes after the float switch is submerged in the water when the float swich control judges the sensor is in the water 3 2 Float switch control Same control as Float switch control judges whether the sensor is in the air or in the water by COOL operation turning the float switch ON OFF In the water Detected that the float switch is ON for 15 seconds In the air Detected that the float switch is OFF for 15 seconds 1 Initial setting OFF HEAT last setting When the last setting is Swing Downward D When changing the mode from exception of HEAT to HEAT operation Downward D 2 Vane position Horizontal Downward A Downward B Downward C Downward D Swing Auto 3 Restriction of vane position The vane is horizontally fixed for the following modes The control by the remote controller is temporally invalidated and control by the unit Thermo OF
8. ee _ _ _ 50 100 150 200 250 ae Air flow rate Taking air into the unit 50020 x 0 50 20 o e 8 100 40 7 8 150 60 S8 9 200 80 0 2 4 6 8 d M M M io q xo 50 100 150 200 250 Air flow rate 11 Multifunction casement Standard filter Static pressure Pa in W G x10 200 80 How to read curves Duct characteristics Curve in the at site graphs P tly 4 0 P gat uj i Q a lt gt 6 CMM 150 200 Designed amount of fresh air intake lt CMM CFM gt Static pressure loss of fresh air intake duct system with air flow amount Q Pa in W G x10 gt Forced static pressure at air condi tioner inlet with air flow amount Q Pa in W G x102 Static pressure of booster fan with air flow amount Pa in W G x102 Static pressure loss increase amount of fresh air intake duct system for air flow amount Pa in W G x102 Static pressure of indoor unit with air flow amount Pa in W G x102 a Estimated amount of fresh air intake without D CMM CFM gt Multifunction casement High efficiency filter 50 20 50 20 100 40 150 60 Static pressure Pa in W G x10 2 200 80 0 2
9. ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode FAN ON for 6 minutes after the float switch is submerged in the water when the float swich control judges the sensor is in the water 1 2 Float switch control Same control Float switch control judges whether the sensor is in the air or in the water by COOL turning the float switch ON OFF operation In the water Detected that the float switch is ON for 15 seconds In the air Detected that the float switch is OFF for 15 seconds 21 10 TROUBLESHOOTING 10 1 HOW TO CHECK THE PARTS PLFY P12 15 18 24 30 36NBMU E PLFY P12 15 18 24 30 36NBMU ER1 Parts name Check points Room temperature Disconnect the connector then measure the resistance using a tester thermistor TH21 At the ambient temperature 50 F 86 F Liquid pipe thermistor TH22 Normal Abnormal Gas pipe thermistor Refer to the next page for a detail TH23 4 3kQ 9 6kQ Open or short Vane motor MV Measure the resistance between the terminals using a tester At the ambient temperature of 68 F 86 F Connector Normal Abnormal Red Yellow O 09 09 LT Red Blue O 09 0 Red Orange 8 6 9 3000 Open or short Yellow Red White 0 0 09 0 85 07 Drain pump Measure the resistance between the terminals using a tester y Windin
10. 2 QIE Drain pump is included 2 Max lifting height is 70 7 18 850mm from the ceiling ap 3 As for suspension bolt please use M10 W3 8 Procured at local site Air intake 4 Electrical box may be removed for the service purpose grille E Make sure to slack the electrical wire little bit for control power wires connection p 5 The height of the indoor unit is able to be adjusted with the grille attached F 6 For the installation of the optional high efficiency filter or optional multi functional e Vane motor casement 1 Add 5 5 16 135mm to the dimensions marked on the figure ee 19 1 116 500 5 1 27 64 36 2 The optional high efficiency filter becomes optional multi functional casement Corner pocket Air outlet hole 3 17 64 and concomitant use ke 37 3 8 950 83 7 When installing the branch ducts be sure to insulate adequately Otherwise condensation and dripping may occur It becomes the cause of dew drops water dew m 8 As for necessary installation service space please refer to the left figure ndoor unit Models A B D PLFY P12NBMU E Refrigerantpipe Refrigerant pipe 012 7 PLFY P15NBMU E 96 35 Flared connection 1 2 PLFY P18NBMU ER1 Flared connection AF PLFY P18NBMU E Refrigerant pipe Refrigerant pipe 912 7 015 88 06 35 29 52 Flared connection 1 2F 5 8F Gan yn Flared connection compatible Min 94 1 2 2400 TAF 3 8F from floor compatible P
11. 29 Power supply for indoor controller board 208 230VAC FUSE 6 3A 250V 10 3 2 Circuit board PLFY P12NBMU E R1 PLFY P15NBMU E R1 PLFY P18NBMU E R1 PLFY P24NBMU E R1 PLFY P30NBMU E R1 PLFY P36NBMU E R1 SW1 SWA SWB Function setting Ceiling height Discharge outlet selector number selector Goa 60600600000 SW12 Address setting Address setting Option selector 2nd digit 1st digit 30 11 DISASSEMBLY PROCEDURE PLFY P12NBMU E R1 PLFY P15NBMU E R1 PLFY P18NBMU E R1 PLFY P24NBMU E R1 PLFY P30NBMU E R1 PLFY P36NBMU E R1 Be careful when removing heavy parts OPERATING PROCEDURE PHOTOS amp ILLUSTRATIONS 1 Removing the air intake grille Figure 1 1 Slide the knob of air intake grille toward the arrow to open the air intake grille 2 Remove drop prevention hook from the panel 3 Slide the shaft in the hinge to the direction of the arrow and remove the air intake grille Filter Air intake grille Air intake grille knob 2 Removing the room temperature thermistor TH21 Photo 1 Address board 1 Remove the air intake grille and the filter See Figure 1 cover nxing 2 Remove the 2 screws from the electrical box 3 Disconnect the connector CN20 Red from the indoor con MA remote troller board controller 4 Remove the room temperature thermistor terminal cover Ad
12. Correspondence of ceiling heights to numbers of air outlets SWA SWB TELA 280 CN43 SUA 100 u Xe 10ths DIGI 1 4 Sw1 E ON OFF 7 12345678910 CN82 SW12 swt Swc 5 4 0 ga a ut NS A Ye Ja 3 Je 9 E 1012 tsDIGIT SPI o INO 7 No BRANCH No J PLFY P12 P15 P18 P24 P30NBMU E R1 SWB Silent Standard High ceiling 4 direction 2 5m 8 2ft 2 7m 8 9ft 3 5m 11 5ft 3 direction 2 7m 8 9ft 3 0m 9 8ft 3 5m 11 5ft 2 direction 3 0m 9 8ft PLFY P36NBMU E R1 SWB 3 3m 10 8ft 3 5m 11 5ft Silent Standard High ceiling 4 direction 2 7m 8 9ft 3 2m 10 5ft 4 5m 14 8ft 3 direction 3 0m 9 8ft 3 6m 11 8ft 4 5m 14 8ft 2 direction 3 3m 10 8ft 4 0m 13 1ft 4 5m 14 8ft 5 2 BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE At the time of installation use the duct holes cut out located at the positions shown in following diagram as and when required A fresh air intake hole for the optional multi function casement can also be made Note The figures marked with multi function casement in the drawing below represent the dimensions of the main unit excluding those of the
13. 2 2 Float switch control Same control Float switch control judges whether the sensor is in the air or in the water by as COOL turning the float switch ON OFF operation In the water Detected that the float switch is ON for 15 seconds In the air Detected that the float switch is OFF for 15 seconds 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 18 9 4 HEAT OPERATION lt How to operate gt D Press POWER ON OFF button she MITSUBISHI ELECTRIC _ Press the operation MODE button to display HEAT men IE BH E Press the TEMP button to set the desired temperature ESO ets al NOTE The set temperature changes 2 F when the Gor button is isse 38 a UE pressed one time Heating 63 to 83 F D ON OFF n Display in HEAT operation gt m Eu SSS Se Se DEFROST Canc 29 DEFROST symbol is only displayed during the defrost operation PAR 21MAA CLOCK VOPERATIONA J aR ST ANDBY The STANDBY symbol is only displayed during the hot adjust mode V Control modes Control details 1 Thermoregulating 1 1 Thermoregulating function Function to prevent restarting for 3 minutes function e Room temperature desired temperature 2 F Thermo ON
14. LEV Blue Normal Abnormal Refer to 8 1 2 Brown White Red Yellow Brown Orange Red Blue Brown om Open or short ellow 150kQ 10 ul s Red Orange 22 10 1 1 Thermistor lt Thermistor characteristic graph gt Thermistor for Thermistor Ro 15kQ 3 Fixed number of B 3480 2 Rt 15exp 3480 ___1_ _ 273 t 32 1 8 273 30 F 15 8kQ 50 F 9 6kO 70 F 6 0kQ 80 F 4 8kQ 90 F 3 9kO 100 F 3 2kO Room temperature thermistor TH21 lower temperature Liquid pipe temperature thermistor TH22 Gas pipe temperature thermistor TH23 Resistance kQ Thermistor for lower temperature gt 50 30 20 0 20 0 20 40 60 80 100 120 Temperature F 10 1 2 Linear expansion valve Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal from the indoor controller board Valve position can be changed in proportion to the number of pulse signals Connection between the indoor controller board and the linear expansion valve Controller board DC12V Linear expansion valve Brown 6 prov Y 4 Blue Red ie Drive circuit e xe N ea as 14 6 o lt Yellow 3 Orange lt 1 5 2 1 3 P 2 Yellow 2 i92 White Red Orange o lt 1 White 1 191
15. Low 60Hz Middle2 60Hz 700 650 S u 60 0 ish ho i 500 d M 1 45 0 INC 50 40 0 d Jd 1 Mnao E 4 4i ly M NC 30 Approximate minimum 15 0 audible limit on continuous noise External static pressure Power source 208 230V 60Hz 5 500 1k 2k 4k 8k Octave band center frequencies Hz i PLFY P30NBMU E PLFY P30NBMU ER1 Octave band center frequencies Hz High 60Hz Middle1 60Hz i Low 60Hz Middle2 60Hz 700 650 S u 60 0 3 1 4 S 550 H i yom ed a 50 0 z X 450 NC90 i g 5 H o 400 360 S Nen 27 NS ese a 30 x y cate N ta ig H 5 Ly MAN 20 J Approximate minimum N i 15 0 audible limit on NC 20 continuous noise MON 10 0 i 1 N 63 125 250 500 1k 2k 4k 8k i PLFY P18NBMU E PLFY P18NBMU ER1 External static pressure Power source 208 230V 60Hz High 60Hz Middle1 60Hz PY Low 60Hz Middle2 60Hz 650 iS 600 i ie seg hco S re re 500 I iT 450 hcs i oce iy 400 2 asd pe is ZANT 300777 d Re d SEIL
16. Room temperature desired temperature Thermo OFF By the remote controller setting switch of 4 speeds Auto Type Fan speed notch 4 speeds Auto type Low Med2 Med1 High Auto When Auto is set fan speed is changed depending on the value of Desired temperature Room temperature Give priority to under mentioned controlled mode 2 1 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 Hot adjust mode The fan controller becomes the hot adjuster mode for the following conditions When starting the HEAT operation When the thermoregulating function changes from OFF to ON When release the HEAT defrosting operation Hot adjust mode 1 gt 1 STAND BY will be displayed during the hot adjust mode Set fan speed by the remote controller Low Extra Low A B ee A Hot adjust mode starts B 5 minutes have passed since the condition A or the indoor liquid pipe temperature turned 95 F or more C 2 minutes have passed since the condition A Terminating the hot adjust mode 2 2 Preheating exclusion mode This control is When the condition changes the auxiliary heater ON to OFF thermoregulating or same for the operation stop etc the indoor fan operates in Low mode for 1 minute model without auxiliary heater To be continued on the next page 19
17. fixing screw Float switch fixing screw OPERATING PROCEDURE PHOTOS amp ILLUSTRATIONS 11 Removing the heat exchanger 1 Remove the drain pan See Photo 6 2 Remove the 3 screws of the piping cover and pull out piping cover 3 Remove the 2 screws of coil plate 4 Remove the 2 screws of the coil 5 Remove the screw of the coil support 6 Pull out the heat exchanger 34 Photo 10 Linear expansion Heat exchanger valve Piping cover Heat exchanger fixing screw Coil support 35 CITY MULTI a MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2007 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Nov 2008 No OCH421 REVISED EDITION A PDF 7 New publication effective Nov 2008 Distributed in Jul 2007 No OCH421 PDF 9 Specifications subject to change without notice Made in Japan
18. 52 3 8 9 52 3 8 9 MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 9 1 COOL OPERATION lt How to operate gt Press POWER ON OFF button ae MITSUBISHI ELECTRIC ZU HEN cms un i Press the operation MODE button to display COOL 1 N SBE sw Press the TEMP button to set the desired temperature QO ONOFF NOTE The set temperature changes 2 F when the v or Cz button is oC pressed one time Cooling 67 to 87 F Oppo OMENU al TS FuTER gt C BACK MONIORSET DAY ER 0 CHEK TEST v PAR 21MAA CLOCK V OPERATION A CLEAR Control modes Control details Remarks 1 Thermoregulating 1 1 Thermoregulating function Function to prevent restarting for 3 minutes function Room temperature 2 desired temperature 2 F Thermo ON Room temperature desired temperature Thermo OFF 1 2 Anti freezing control Detected condition When the liquid pipe temp TH22 is 32 F or less in 16 minutes from compressors start up anti freezing control starts and the thermo 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 50 F or above The condition of the thermo OFF has become
19. Heating Swi Function setting itchi PENT mode dena remote Thermo ON signal display Indicating Under 2 Heating thermo ON is suspension operating Humidifier control Always operated while the heat in ON 1 Operated depends on the condition X2 3 Air flow set in case of Low X3 Extra low 3 Heat thermo OFF Setting air flow 3 Depends on SW1 7 Extra low Low Auto restart function Effective Not effective Setting air flow Stop o ODO oO OJN 2 Power ON OFF by breaker Effective Not effective MODELS sw2 MODELS sw2 Indoor controller board P12 am P24 F n ua Before power P15 duum uu P30 nnn supply Initial setting ON Set for each capacity P18 oN P36 E Heat pump Cooling only Cooling only Heat pump Indoor controller board Louver Humidifier Available Not available Initial setting ON Vane Available Not available OFF 1234567 8 910 Vane swing function in heating wave flow Available Not available Note x4 SW3 5 6 SW3 Vane horizontal angle Second setting 4 First setting 4 Under Function 5 Please do not use suspension 3 setting Vane horizontal angle Third setting 4 Depends on SW3 5 pu E usage condition Changing the opening of linear expa
20. PLFY P24NBMU E PLFY P24NBMU ER1 28 30 32 34 PLFY P30NBMU E PLFY P30NBMU ER1 30 32 35 37 PLFY P36NBMU E PLFY P36NBMU ER1 35 38 41 43 PLFY P12NBMU E PLFY P12NBMU ER1 External static pressure Power source 208 230V 60Hz High 60Hz Low 60Hz Middle 60Hz Middle2 60Hz 70 0 65 0 20 60 0 55 0 50 0 45 0 40 0 35 0 30 0 25 0 m 20 0 Approximate minimum N 45 0 audible limit on continuous noise 10 0 63 125 250 500 1k 2k 4k 8k Octave band center frequencies Hz Octave band pressure level dB OdB i PLFY P24NBMU E PLFY P24NBMU ER1 External static pressure Power source 208 230V 60Hz High 60Hz Middle 60Hz i Low 60Hz Middle2 60Hz H 70 0 i 650 is 60 0 sc coo 50 0 e 450 50 40 Approximate minimum 15 0 audible limit on continuous noise y 63 125 250 500 1k 4k Octave band center frequencies Hz Octave band pressure level dB OdB Et e 8 Octave band pressure level dB OdB e S 7NC 30 PLFY P15NBMU E PLFY P15NBMU ER1 External static pressure Power source 208 230V 60Hz i High 60Hz Middle1 60Hz i
21. Restriction of the downward vane setting When setting the downward vane A B C or D in Med1 Med2 or Low of the fan speed notch the vane changes to horizontal position after 1 hour have passed 16 9 2 DRY OPERATION af MITSUBISHI ELECTRIC lt How to operate gt e HE DEP EIE D Press POWER ON OFF button ub d Ale Press the operation MODE button to display DRY ST eo LI Ger Press the TEMP button to set the desired temperature B TEMP QoniorF NOTE The set temperature changes 2 F when the Gor CG button is Cv oC pressed one time Dry 67 to 87 F CMeGOOx OMENU oono Pal i FILTER s GED GR Pv BACK MONIORISET DAY et 38 4 CHECK TEST CA 2g PAR 21MAA CLOCK VOPERATIONA CLEAR Control modes Control details 1 Thermo regulating 1 1 Thermo regulating function Function to prevent restarting for minutes function Setting the Dry thermo by the thermo regulating signal and the room temperature TH21 Dry thermo ON Room temperature Z desired temperature 2 F Dry thermo OFF Room temperature desired temperature Room 3 min passed since starting operation temperature thermo regulating signal Room temperature T1 T12 83 F 83 F T12 79 F ON Over 64F 79 F gt 1 75 F 75 F gt 1 FF Less than 64F Dry thermo OFF 1 2 Frozen preve
22. da P24 oFF BLU REMOTE CONTROLLER c BREAKER once A ds 7 123455 123355 S DC24 30V 16A OFF 2345678910 1H 4 oF ON ON SHED lol P15 OFF P30 OFF 2 FUSE 16A 91 11 123456 123456 o ol ON ON RED P18 oFF P36 OFF LN BLU PULL BOX 190617 173456 123456 GRN YLW on TONEXT m ig 7 8 4 See fig 1 i wer M2 J41 LII sw 802 4 1 5 LB ooo 0026 Lm OFF 21 T Gd 8 1 4 12345678910 12345 123456 DSA V 19171513119 7 5 3 1 ADDRESS ADDRESS 20 VANE CNV CN81 CN42 SWE BLU KSEESENSORMOTOR WHT amp RED RED ZNRO2 RD 6 LED2 OFEON DC311 339V REMOCON RECTIFICATION FUSE 990000 BLU WIRELESS ZNR01 U 180 cny 22ST cups SEE SENSOR 1 WHT 9 AE CY T 9999909000 2 190 1 WHT 4 BLK pie CN60 1 WHT 6 090000 HUI E FEON SW CONDO ao CNMF CNAC CN51 WHT WHT RED WHT WHT 1 GRN 5 1 WHT 5 4 4WHD4 12 12 41 DUM 4 31 00000 00000 ioo 4 45 MAREMOTE i M z 2L CONTROLER i i I IE ww B E De i LSEE sai come PANEL Be sure to turn off the source power and then disconnect fan motor connector OPTION PART LEV j 22 23 FS 21 Failure to do so will cause trouble Fan motor NOTES 1 At servicing for outdoor unit always follow the wiring diagram of outdoor unit 2 In case of using MA Remote controller please connect to TB15 Remote controller wire is non polar 3 In c
23. optional When installing the optional multi function casement add 5 5 16 135 mm to the dimensions marked on the figure When installing the branch ducts be sure to insulate adequately Otherwise condensation and dripping may occur Unit inch mm Fresh air intake hole Branch duct hole n Indoor unit gt 8 B Drain pipe Refrigerant pipe Branch duct hole diagram view from either side Fresh air intake hole diagram 3 1 8 92 8 burring hole 420 4 29 32 125 burring hole pitch mz 341516 100 cut out hole Sadie 3 17 32 3 15 16 3 15 16 3 17 32 90 100 90 90 6 9 16 167 04 ra 14 91 8 2 8 burring hole 6 7 8 4175 burring hole pitch 13 2532 350 5 29 32 150 cut out hole 5 3 OPERATION IN CONJUNCTION WITH Be s re to ello o ee DUCT FAN Booster fan CN51 by tape ste ASE a Whenever the indoor unit is operating the duct fan also on i operates E ds controller EQ Orange EO MB 1 Connect the optional multiple remote controller adapter board Connector 5 Red c PAC SA88HA E to the connector CN51 on the indoor m Brown ul i Indoor unit side Installation at site controller board 2 Drive the relay after connec
24. to Low or downward during COOL or DRY mode Operation varies according to model The indicator goes off in one hour at which time the airflow direction also changes Room Temperature display Shows the room temperature The room temperature display range is 46 102F The display blinks if the temperature is less than 46F or 102F or more Ventilation indicator Appears when the unit is running in Ventilation mode 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 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 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 SPECIFICATIONS 4 1 SPECIFICATIONS Model PLFY P12NBMU E PLFY P12NBMU ER1 PLFY P15NBMU E PLFY P15NBMU ER1 PLFY P18NBMU E PLFY P18NBMU ER1 Power source 1 phase 208 230V 60Hz Cooling capac
25. 5 16 a VF Suspension bolt 187 5 460 Burring hole M10 or W3 199 x 33 1 16 840 J cR 3 21 8 3 22 8 Burring hole pitch 60 284 377 Drain pipe Connected the attached E 2 37 11 284 14 250 connected to VP 25 flexible pipe or socket 2429320125 7 170 x5 1 2 6 11 16 140 g gt Keep 25 64 10 to 19 32 15 between unit ceiling and ceiling slab LZ Cut out hole 59 IN 03 15 16 2100 SN Xo 3 Ceiling T Suspension bolt lur lower edge 9 Ceiling ur c In case of standard grille case of wireless remote controller Su Grille LT E z Emergency operation switch lt Cooling gt le 23 1 2 597 zl and Emergency Up Down switch Up Air intake hole Emergency operation switch lt Heating gt x Drain hole and Emegency Up Down switch lt Down gt Drain pump clean hole S and Drain emergency 4 drainage hole Receiver b x lt Auto vane 2 Air outlet Operation lamp DEFROST STAND BY lamp S go SI Note E 2 N 5 1 Please choose the Grille from a standard grille e x 2 As for drain pipe please use VP 25 61 1 4 32 PVC TUBE
26. 5 x 950 x 950 Net weight Ibs kg 13 6 13 6 13 6 Heat exchanger Cross fin FAN Type x Quantity Turbo fan x 1 Turbo fan x 1 Turbo fan x 1 External in WG 0 000 208V 0 000 208V 0 000 208V static press Pa 0 0 0 in WG 0 000 230V 0 000 230V 0 000 230V Pa 0 0 0 Motor type DC motor Motor output kW 0 050 0 050 0 120 Driving mechanism Direct drive Airflow rate cfm 530 565 636 706 565 636 706 777 777 883 989 1 059 Low Mid2 m min 15 0 16 0 18 0 20 0 16 0 18 0 20 0 22 0 22 0 25 0 28 0 30 0 Mid1 High L s 250 267 300 333 267 300 333 367 367 417 467 500 Noise level Low Mid2 Mid1 High dB lt A gt 28 30 32 34 208 230V 30 32 35 37 208 230V 35 38 41 43 208 230V measured in anechoic room dB lt A gt dB A m x Insulation material PS Air filter PP honeycomb long life filter anti bacterial type Protection device Refrigerant control device Fuse LEV Connectable outdoor unit R410A R22 CITY MULTI Diameter of Liquid R410A in mm 3 8 9 52 Flare 3 8 9 52 Flare 3 8 9 52 Flare refrigerant pipe R22 3 8 9 52 Flare 3 8 9 52 Flare 3 8 9 52 Flare O D Gas R410A i mm 5 8 15 88 Flare 5 8 15 88 Flare 5 8 15 88 Flare R22 5 8 15 88 Flare 5 8 15 88 Flare 3 4 19 05 Flare Field drain pipe size in mm O D 1 1 4 32 O D 1 1 4 32 O D 1 1 4 32 Standard Docum
27. F Hot adjust Extra low mode Heat defrost mode 20 9 5 AUTO OPERATION AUTOMATIC COOL HEAT CHANGE OVER OPERATION lt How to operate gt aa MITSUBISHI ELECTRIC r Press POWER ON OFF button men Fe DA a EE Press the operation MODE button to display AUTO Press the TEMP button to set the desired temperature 25 AGE NOTE The set temperature changes 2 F when the Cz button is ON OFF gt ressed one time Automatic 67 to 83 F oC P Opao OMENU OoNor f FILTER J tC BACK MONITORISET DAY 385 4 CHECK TEST b PAR 21MAA CLOCK OPERATION A CLEAR Control modes Control details 1 Initial value of HEAT mode for room temperature lt Desired temperature operation mode COOL mode for room temperature 2 Desired temperature 2 Mode change 1 HEAT mode COOL mode Room temperature 2 Desired temperature 3 F or 3 min has passed 2 COOL mode HEAT mode Room temperature Desired temperature 3 F or 3 min has passed 3 COOL mode Same control as cool operation 4 HEAT mode Same control as heat operation i 9 6 WHEN UNIT IS STOPPED CONTROL MODE Control modes Control details Remarks 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 met
28. High dB A 27 28 29 31 208 230V 27 28 30 31 208 230V 28 29 30 32 208 230V measured in anechoic room dB A dB A FT Insulation material PS Air filter PP honeycomb long life filter anti bacterial type Protection device Fuse Refrigerant control device LEV Connectable outdoor unit R410A R22 CITY MULTI Diameter of Liquid R410A n m 1 4 6 35 Flare 1 4 6 35 Flare 1 4 6 35 Flare refrigerant pipe R22 1 4 6 35 Flare 1 4 6 35 Flare 3 8 9 52 Flare 0 D Gas R410A 1 2 12 7 Flare 1 2 12 7 Flare 1 2 12 7 Flare in mm R22 1 2 12 7 Flare 1 2 12 7 Flare 5 8 15 88 Flare Field drain pipe size in mm O D 1 1 4 32 O D 1 1 4 32 O D 1 1 4 32 Standard Document attachment Accessory Installation Manual Instruction Book Optional parts Air outlet shutter plate PAC SH51SP E PAC SH51SP E PAC SH51SP E High efficiency filterelement PAC SH59KF E PAC SH59KF E PAC SH59KF E Multi function casement PAC SH53TM E PAC SH53TM E PAC SH53TM E Due to continuing improvement above specification may be subject to change without notice Remark Installation Details on foundation work duct work insulation work electrical wiring power source switch and other items shall be referred to the Installation Manual Note 1 Nominal cooling conditions 2 Nominal heating
29. IN UP MACHINE TEST MODE _ TH23 PIPE TEMP DETECTION GAS LED1 LED OPERATION INDICATION GREEN X1 AUX RELAY DRAIN WATER LIFTING UP MACH 0 C 15KQ 25C 5 4kQ LED2 LED PREPARATION FOR HEATING ORANGE ZNR01 02 VARISTOR RU RECEIVING UNIT SW1 EMERGENCY OPERATION HEAT DOWN SW2 EMERGENCY OPERATION COOL UP LED on indoor board for service Mark Meaning Function Main Power supply Indoor 208 230 LED1 Main power supply power on lit LED2 Power supply for Power supply for MA Remote controller MA Remote controller on lamp is lit 8 REFRIGERANT SYSTEM DIAGRAM PLFY P12NBMU E R1 PLFY P24NBMU E R1 Item PLFY P15NBMU E R1 PLFY P30NBMU E R1 PLFY P18NBMU E R1 PLFY P36NBMU E R1 Refrigerant flow in cooling Refrigerant flow in heating Gas pipe thermistor TH23 Strainer 100mesh Room temparature thermistor TH21 PLFY P12 P15NBMU E PLFY P12 P15NBMU ER1 PLFY P18NBMU E PLFY P18NBMU ER1 Gas pipe Liquid pipe thermistor TH22 Heat exchanger Liquid pipe Linear expansion valve dc m Strainer1 50mesh Strainer2 100mesh Strainer 100mesh PLFY P24 P30NBMU E PLFY P24 P30NBMU ER1 Flare connection Unit mm inch PLFY P36NBMU E PLFY P36NBMU ER1 Gas pipe 12 7 1 2 12 7 1 2 615 88 5 8 15 88 5 8 15 88 5 8 519 05 3 4 Liquid pipe 86 35 1 4 6 35 1 4 09 52 3 8 14 9
30. LFY P24NBMU E t bi Refrigerant pipe 215 88 19 11 16 500 PLFY P30NBMU E Pipe Flared connection 5 8F Entire PLFY P36NBMU E Flared connection Refrigerant pipe 215 88 219 05 periphery Floor 8 Flared connection 5 8 3 4F compatible 1116 1 Td S152 34182 PLFY P36NBMU ERT Refrigerant pipe 015 88 DER Flared connection 5 8F 12 7 WIRING DIAGRAM PLFY P12NBMU E R1 PLFY P24NBMU E R1 PL PL FY P15NBMU E R1 FY P30NBMU E R1 PLFY P18NBMU E R1 PLFY P36NBMU E R1 lt 1 gt POWER SUPPLY AB RED 4 o IN 208 230V 60H ADDRESS lol MODELS sw2 MODELS sw2 185 TO OUTDOOR UNIT is Z ON ON Mi BC CONTROLLER GRILLE SWA SWB 1 o g P12
31. MITSUBISHI ELECTRIC SPLIT TYPE HEAT PUMP AIR CONDITIONERS Changes for the Better November 2008 No OCH421 REVISED EDITION A TECHNICAL amp SERVICE MANUAL CITY MULTI Series Indoor unit Model names PLFY P12NBMU E PLFY P15NBMU E PLFY P18NBMU E PLFY P24NBMU E PLFY P30NBMU E PLFY P36NBMU E Model name indication Service Ref PLFY P12NBMU E PLFY P12NBMU ER1 PLFY P15NBMU E PLFY P15NBMU ER1 PLFY P18NBMU E PLFY P18NBMU ER1 PLFY P24NBMU E PLFY P24NBMU ER1 PLFY P30NBMU E PLFY P30NBMU ER1 PLFY P36NBMU E PLFY P36NBMU ER1 INDOOR UNIT Ceiling Cassettes R410A R22 Revision PLFY P12 15 18 24 30 36 NBMU ER1 are added in REVISED EDITION A Some descriptions have been modified Plase void OCHA21 Note This manual does not cover outdoor units When servicing them please refer to the outdoor unit s service manual RoHS compliant products have lt G gt mark on the spec name plate CONTENTS 1 TECHNICAL CHANGES 2 2 3 PART NAMES AND FUNCTIONS 3 4 SPECIFICATIONS 5 5 4 WAY AIR FLOW SYSTEM 9 6 OUTLINES AND DIMENSIONS 12 7 WIRING DIAGRAM s 13 8 REFRIGERANT SYSTEM DIAGRAM 14 9 MICROPROCESSOR CONTROL 15 10 TROUBLESHOOTING
32. Y P12 15 18 24 30 36NBMU ER1 Linear expansion valve LEV output CN6Y i see sensor motor output 12VDC pulse output CN4Y i See sensor CN52 Remote indicator CN51 Centrally controlled CN44 Pipe temperature thermistor Liquid TH22 Gas TH23 CN4F Drain float switch FS CN20 Jf Room temperature j thermistor TH21 CN27 Damper signal output 12VDC O n CN90 Connect to the wireless remote controller board W B LED1 Main power supply Indoor unit 208 230V CNMF Connect to the fan motor MF DC310 340V DC15V DCO 6V DCO or DC15V Stop DC7 5V Operation 12VDC pulse S8ISA0094 SIA009d CNP Drain pump output DP G 208 230VAC b Se ee Swe 12VDC pulse output m CN3A Connect to the terminal block TB15 MA Remote controller connecting wire 8 7 13V DC Pin Vane motor output 12VDC pulse CN32 MN Remote switch Jumper wire J41 J42 Pair No setting for wireless remote controller LED2 Power supply for MA Remote controller SW3 Function setting SW4 Model selection Test run Drain pump Sw2 Capacity setting CN2M Connect to the terminal block TB5 M NET transmission connecting wire 24 30VDC non polar CND o FH2 H pi a a RED ir Or 9 9 OQ UL 6 Ac250v e sA Ac250V
33. ase of using M NET please connect to TB5 Transmission line is non polar 4 Symbol S of TB5 is the shield wire connection 5 Symbols used in wiring diagram above are terminal block o o connecter 6 The setting of the SW2 dip switches differs in 2 Use copper supply wires he capacity For the detail refer to fig lt 1 gt 13 LEGEND SYMBOL NAME SYMBOL NAME SYMBOL NAME LB INDOOR CONTROLLER BOARD DP DRAIN UP MACHINE A B ADDRESS BOARD CN27 CONNECTOR DAMPER FS DRAIN FLOAT SWITCH SWA SWITCH CEILING HEIGHT SELECTOR CN32 REMOTE SWITCH LEV LINEAR EXPANSION VALVE SWB DISCHARGE OUTLET NUMBER CN51 CENTRALLY CONTROL MF FAN MOTOR SELECTOR CN52 REMOTE INDICATION MV VANE MOTOR SWC OPTION SELECTOR DSA SURGE ABSORBER TB2 TERMINAL POWER SUPPLY SW1 MODE SELECTION FUSE FUSE T6 3AL250V TBS BLOCK TRANSMISSION Swit ADDRESS SETTING 1s DIGIT LED1 POWER SUPPLY 1 15 MA REMOTE CONTROLLER SW12 ADDRESS SETTING 10ths DIGIT LED2 POWER SUPPLY l B TH21 THERMISTOR ROOM TEMP DETECTION 91 14 BRANCH NO SW2 SWITCH CAPACITY CODE 0 C 15kQ 25 C 5 4 OPTION PART SW3 MODE SELECTION TH22 PIPE TEMP DETECTION LIQUID W B PCB FOR WIRELESS REMOTE CONTROLLER SW4 MODEL SELECTION 0 C 15 25 C 5 4kQ BZ BUZZER SWE DRA
34. complete by thermoregulating etc The operation modes became mode other than COOL The operation stopped By the remote controller setting switch of 4 speeds Auto Type Fan speed notch 4 speeds Auto type Low Med2 Med1 High Auto When Auto is set fan speed is changed depending on the value of Room temperature Desired temperature To be continued on the next page 15 From the preceding page 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 thermo ON OFF When the operation mode has changed from the COOL or DRY to the others including Stop OFF the control after the drain pump ON for 3 minutes Float switch control Float switch control judges whether the sensor is in the air or in the water by turning the float switch ON OFF In the water Detected that the float switch is ON for 15 seconds In the air Detected that the float switch is OFF for 15 seconds Float SW OFF i i 15sec 1min 30sec 1min 30sec A In the water In the air In the water Error Drain pump postponement abnormal A A 4 Vane 1 Initial setting Start at COOL mode and horizontal vane ONLY 1 Hr up down vane change 2 Vane position appears on the Horizontal Downward A Downward B Downward C Downward D Swing lt Auto wired remote 1 controller 3
35. conditions Unit converter Indoor 80degF D B 67degF W B 70degF D B 26 7degC D B 19 4degC W B 21 1degC D B KW x 860 Outdoor 95degF D B 47degF D B 43degF W B GA a 35degC D B 8 3degC 6 1degC W B em m min 9 39 91 Pipe length 25 ft 7 6 m 25 ft 7 6 m Ibs kg 0 4536 Level difference 0 ft 0 m 0 ft 0 m Above specification data is subject to rounding variation 5 Model PLFY P24NBMU E PLFY P24NBMU ER1 PLFY P30NBMU E PLFY P30NBMU ER1 PLFY P36NBMU E PLFY P36NBMU ER1 Power source 1 phase 208 230V 60Hz Cooling capacity 1 BTU h 24 000 30 000 36 000 Nominal 1 kW 7 0 8 8 10 5 Power input kW 0 06 0 07 0 16 Current input A 0 43 0 51 1 07 Heating capacity 2 Btu h 27 000 34 000 40 000 Nominal 2 kcal h 7 9 10 0 11 7 Power input kW 0 05 0 06 0 15 Current input A 0 36 0 43 1 00 External finish Galvanized steel sheet External dimension H x W x D in 10 3 16 x 33 3 32 x 33 3 32 10 3 16 x 33 3 32 x 33 3 32 11 3 4 x 33 3 32 x 33 3 32 mm 258 x 840 x 840 258 x 840 x 840 298 x 840 x 840 Net weight lbs kg 51 23 51 23 60 27 Decoration panel Model PLP 40BAU PLP 40BAU PLP 40BAU External finish MUNSELL 6 4Y 8 9 0 4 Dimension in 1 3 8 x 37 13 32 x 37 13 32 1 3 8 x 37 13 32 x 37 13 32 1 3 8 x 37 13 32 x 37 13 32 HxWxD mm 35 x 950 x 950 35 x 950 x 950 3
36. dress 3 Removing the address board A B 1 Remove the air intake grille and the filter See Figure 1 2 Remove the 2 screws from the address board cover 3 Disconnect the connectors CN43 RED 4P and CN82 RED SE Terminal 4 Slide and remove the address board cover fixing Electrical box cover Electrical box cover screw fixing screws 4 Removing the indoor controller board 1 Remove the air intake grille and the filter See Figure 1 2 Remove the 2 screws from the electrical box cover 3 Disconnect the connectors CNMF White 7P for fan motor CN44 White 4P for thermistor TH22 TH23 CNP Blue 3P for drain pump White 4P for float switch 2 CNO1 Black 5P for earth and TB2 Bell mouth CNV White 20P for vane motor CN81 CN42 Red 8P 4P for address board 2 Blue 2P for 5 TH22 N CN3A Blue 3P for TB15 Turbo fan 4 Remove the 6 supports from indoor controller board Electrical 1 5 Remove the indoor controller board box fixing screw 5 Removing the electrical box 1 Remove the air intake grille and the filter See Figure 1 2 Remove the 2 screws from the electrical box cover 3 Disconnect the connectors Refer to 4 4 Remove 4 electrical box fixing screws and remove 2 hooks 5 Pull the electrical box Electrical box Indoor controller Support for Indoor Electrical parts in the electrical box board controller board Indoor co
37. e J41 J42 on the indoor controller board are cut according to the table below Wireless remote controller Pair No Setting operation Press the SET button using a pointed implement Check that the remote controller s display has stopped before continuing MODEL SELECT blinks and the model No 3 digits appears steadily lit Press the MINUTE button twice The pair number appears flashing Press the temperature buttons to select the pair number to set Press the SET button using a pointed implement The set Pair No is displayed steadily lit for 3 seconds then disappears Indoor controller Setting pattern Jumper wire J41 J42 Initial setting Pair No of wireless remote controller Cut Cut Pair No 4 9 of wireless remote controller is setting pattern D Under operation or suspension Indoor controller board lt Initial setting gt Pattern Minute button Connector Drain pump and fan are activated simultaneously after the connector SWE is set to ON and turn ON the power SWE SWE Com OFF ON ON The connector SWE is set to OFF after test run 28 Under operation Indoor controller board lt Initial setting gt SWE 10 3 TEST POINT DIAGRAM 10 3 1 Indoor controller board PLFY P12 15 18 24 30 36NBMU E CN60 E PLF
38. e or Auto Off timer is set the time to be switched off is shown Sensor indication Displayed when the remote controller sensor is used Shows the operating mode etc Multilanguage display is available MITSUBISHI ELECTRIC Locked indicator Indicates that remote controller but tons have been locked TIME SUN MON TUE WED THU FRI SAT TMER Jj fi I Hr AFTER I 11 gt CULT AFTER oFF ERR Centrally Controlled indicator SS is Indicates that operation from the remote controller has been prohib ited by a master controller CNN OR CODE EJ BRSHTS ul n ONLY1Hr 38 Clean The Filter indicator To be displayed on when it is time to clean the filter Timer indicators WEEKLY SIMPLE AUTO OFF The indicator comes on if the corre sponding timer is set Fan Speed indicator Shows the selected fan speed Timer is Off indicator Up Down Air Direction indica tor Indicates that the timer is off The indicator N shows the direc tion of the outcoming airflow One Hour Only indicator Temperature Setting Shows the target temperature Displayed if the airflow is set
39. ent s attachment Accessory Installation Manual Instruction Book Optional parts Air outlet shutter plate PAC SH51SP E PAC SH51SP E PAC SH51SP E High efficiency filterelement PAC SH59KF E PAC SH59KF E PAC SH59KF E Multi function casement PAC SH53TM E PAC SH53TM E PAC SH53TM E Remark Installation Details on foundation work duct work insulation work electrical wiring power source switch and other items shall be referred to the Installation Manual Note 1 Nominal cooling conditions 2 Nominal heating conditions Unit converter Indoor 80degF D B 67degF W B 70degF D B 26 7degC D B 19 4degC WB 21 1degC D B kcal h kW x 860 Outdoor 95degF D B 47 43degF W B EIUS 35degC D B 8 3degC D B 6 1degC W B s 25 91 Pipe length 25 ft 7 6 m 25 ft 7 6 m Ibs kg 0 4536 Level difference 0 ft 0 m 0 ft 0 m Due to continuing improvement above specification may be subject to change without notice Above specification data is subject to rounding variation 6 4 2 SOUND LEVEL PLFY P NBMU E Measured in anechoic room 4 3 NC CURVES Measurement location Sound level at anechoic room Low Mid2 Mid1 High Sound level dB A PLFY P12NBMU E PLFY P12NBMU ER1 27 28 29 31 PLFY P15NBMU E PLFY P15NBMU ER1 27 28 30 31 PLFY P18NBMU E PLFY P18NBMU ER1 28 29 30 32
40. g temperature 68 F Normal Abnormal 2900 Open or short Drain float switch FS Measure the resistance between the terminals using a tester i Moving part Y Switch State of moving part Abnormal Lec T UP Other than short DOWN Other than open L i see sensor Turn on the indoor unit with the black plastic tape on the outside of i see sensor controller board Option With electricity being turned on measure the power voltage between connectors with tester i see sensor rotates then pull out the connector of motor for i see sensor Black plastic tape Do not disassemble corner panel with i see sensor i see sensor At the ambient temperature of 50 F 104 F 4131211 i see sensor connector Normal Abnormal BlueBlackPink Brown DC 1 857V 3 132V Other than the normal O DC 0 939V 1 506V Other than the normal NOTE Be careful of handing such a static electricity Vane motor for Measure the resistance between the terminals using a tester sensor Option At the ambient temperature of 68 F 86 F White Connector Abnormal n Ey Red Yellow Red Blue Oi range Reds Orange Open or short Red White Blue Yellow Linear expansion Disconnect the connector then measure the resistance valve using a tester valve
41. ge in the indoor controller circuit board TEST POINT Q Voc between 1 and 4 of the fan connector Voc DC294 325V TEST POINT Vcc between 5 and 4 of the fan connector Vcc DC15V 4 Trouble of the indoor controller board lt SMe voee orm Te cm quU the indoor controller board 3 V Yes Yes Y OK Fan motor position sensor signal check Check the operation of fan gt END Turn around the fan motor more than one revolution slowly and check 4 NG th Itage TEST POINT Vre betw 7 and 4 TEMOR TON Ge andan Replace the fan motor Y NO Trouble of the fan mot lt Does the voltage repeat DCOV DC15V gt gt ee Replace the fan motor y Yes Eu V Yes Replace the indoor controller board OK Check the operation of fan END 4 OK Vy NG Check the operation of fan END Replace the indoor y NG E controller board Replace the fan motor 25 10 2 FUNCTION OF DIP SWITCH Switch Operation by switch Effective ON OFF timing Thermistor ete Built in remote controller Indoor unit Address board Remarks Filter clogging detection Provided Not provided Initial setting ON Filter cleaning 2 500hr 100hr 12345678910 Note Fresh air intake Effective Not effective X1 Fan operation at
42. ition to the 4 air speed stages of High Medium 1 Medium 2 Low Air speed can be changed freely in accordance with a difference between the set temperature and the room tempera ture The automatic air speed adjustment mode presents quick cooling of a room with the high mode such as at the start ing up of cooling operation for example After the room temperature is stabilized the low mode will be applied by automatic Switching to keep your comfort Low Medium 2d neo i see Sensor OPTIONAL CORNER PANEL The i see sensor is a radiation temperature sensor originated from Mitsubishi s new technology In order to create a really comfortable space in shops and offices it is essential to control the temperature near the floor where occupants visitors gather The i see sensor measures the infrared rays generated from the surrounding wall and floor surface at an angle of 360 and the infrared ray energy is computed to convert it into the value of temperature In addition the floor temperature at distant spots radiation temperature is also measured to supply the optimum airflow to realize comfort which was never experienced in the past Operation image of Wave Airflow 2 3 PART NAMES AND FUNCTIONS e Indoor unit Drain pipe Filter Air outlet Liquid pipe Gas pipe i see sensor option Air intake Intake grille e Wired remote controller Operation Section Tem
43. ity 1 BTU h 12 000 15 000 18 000 Nominal 1 kW 3 5 4 4 5 3 Power input kW 0 03 0 04 0 05 Current input A 0 22 0 29 0 36 Heating capacity 2 Btu h 13 500 17 000 20 000 Nominal 2 kcal h 4 0 5 0 5 9 Power input kW 0 02 0 03 0 04 Current input A 0 14 0 22 0 29 External finish Galvanized steel sheet External dimension H x W x D in 10 3 16 x 33 3 32 x 33 3 32 10 3 16 x 33 3 32 x 33 3 32 10 3 16 x 33 3 32 x 33 3 32 mm 258 x 840 x 840 258 x 840 x 840 258 x 840 x 840 Net weight Ibs kg 49 22 49 22 51 23 Decoration panel Model PLP 40BAU PLP 40BAU PLP 40BAU External finish MUNSELL 6 4Y 8 9 0 4 Dimension in 1 3 8 x 37 13 32 x 37 13 32 1 3 8 x 37 13 32 x 37 13 32 1 3 8 x 37 13 32 x 37 13 32 HxWxD mm 35 x 950 x 950 35 x 950 x 950 35 x 950 x 950 Net weight Ibs kg 13 6 13 6 13 6 Heat exchanger Cross fin FAN Type x Quantity Turbo fan x 1 Turbo fan x 1 Turbo fan x 1 External in WG 0 000 208V 0 000 208V 0 000 208V static press Pa 0 0 0 in WG 0 000 230V 0 000 230V 0 000 230V Pa 0 0 0 Motor type DC motor Motor output kW 0 050 0 050 0 050 Driving mechanism Direct drive Airflow rate cfm 388 424 459 494 424 459 494 565 494 530 565 636 Low Mid2 m3 min 11 0 12 0 13 0 14 0 12 0 13 0 14 0 16 0 14 0 15 0 16 0 18 0 Mid1 High L s 183 200 217 233 200 217 233 267 233 250 267 300 Noise level Low Mid2 Mid1
44. nel See Photo 4 5 5 Remove the electrical wiring service panel 3 screws 6 Remove the drain pump wire cover 1 screw 7 Remove the electrical box See Photo 2 8 Remove the bell mouth See Photo 2 9 Remove the 4 screws and pull out the drain pan Pull out the left and right of the pan gradually Be careful not to crack or damage the pan 32 Photo 6 Drain pan fixing screw Electrical wiring service panel Drain pan fixing screw Drain pan Electrical wiring ser vice panel fixing screw OPERATING PROCEDURE PHOTOS amp ILLUSTRATIONS 9 Removing the liquid pipe temperature thermistor TH22 and gas pipe temperature thermistor TH23 1 Remove the drain pan See Photo 6 2 Remove the turbo fan Refer to 6 3 Remove the 2 wiring clamps See Photo 3 4 Remove the coil plate 2 screws 5 Remove the thermistors which are inserted into the holders installed to the thin copper pipe 6 Disconnect the 4 pin white connector CN44 Photo 7 Gas pipe temp thermistor TH23 10 Removing the drain pump DP and float switch FS 1 Remove the drain pan See Photo 6 2 Cut the hose band and remove the hose 3 Remove the drain pump assembly 3 screws and 2 hooks 4 Remove the drain pump 3 screws 5 Remove the float switch 2 screws 33 Photo 8 Float switch Hose band Drain pump Drain pump assembly fixing screw Photo 9 Drain pump
45. nsion valve Effective Not effective Sensible temperatre correction Not effective Effective Superheat setting temperature 5 Sub cool setting temperature 5 Indoor controller board Before series supply ON Note X4 SW3 5 6 SW3 5 SW3 6 Vane setting Initial setting Setting Vane position OFF OFF Set up Standard Standard Set up i Less draft Upward position than the standard Set up Less smudging Downward position than the standard ON unused Be careful of the smudge on ceiling 26 Effective Switch Operation by switch timing Remarks Address board Ceiling height can be changed depending on SWB setting High ceiling 8 lt Initial setting gt Standard PLFY P12 P15 P18 P24 P30NBMU E R1 Silent b SWB Silent Standard High ceiling 4 4 direction 2 5m 8 2ft 2 7m 8 9ft 3 5m 11 5ft 3 direction 2 7m 8 9ft 3 0m 9 8ft 3 5m 11 5ft 2 direction 3 0m 9 8ft 3 3m 10 8ft 3 5m 11 5ft Address board PLFY P36NBMU E R1 3 SWB Silent Standard High ceiling Initial setting 4 direction 2 7m 8 9f 3 2m 10 5ft 4 5m 14 8ft M 3 direction 3 0m 9 8ft 3 6m 11 8ft 4 5m 14 8ft Under 2 direction 2 direction 3 3m 10 8ft 4 0m 13 1ft 4 5m 14 8ft operation 3 direction or suspension 4 direction
46. ntion control No control function Indoor fan operation controlled depends on the compressor conditions Dry thermo Fan speed notch Excluding the followin OFF 8 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 17 9 3 FAN OPERATION lt How to operate gt ate MITSUBISHI ELECTRIC Press POWER ON OFF button THE M NEUE TU oe Ee EA Press the operation MODE button to display FAN gfe at esca SONOR us 1038 Temp QO ON OFF oc lz 2 BACK MONITORISET pay Sst 385 04 CHECK TEST CG OO PAR 21MAA CLOCK VOPERATION A CLEAR Opoe MENU eoNor E FILTER When Auto is set fan speed becomes Low Control modes Control details 4 Fan Set by remote controller 4 speeds Auto type Low Med2 Med1 High Auto 2 1 Drain pump control Se ProT pump The drain pump turns ON for the specified amount of time when any of the following conditions is met ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode FAN ON for 6 minutes after the float switch is submerged in the water when the float swich control judges the sensor is in the water
47. ntroller board Terminal block TB2 TB5 31 OPERATING PROCEDURE PHOTOS amp ILLUSTRATIONS 6 Removing the fan and fan motor MF 1 Remove the electrical box See Photo 2 2 Remove the bell mouth 3 screws See Photo 2 3 Remove the turbo fan nut 4 Pull out the turbo fan 5 Remove the wire cover 3 screws 6 Remove 2 wiring clamps 7 Disconnect the connector of the fan motor CNMF 8 Remove the 3 nuts and washers and rubber mounts of the fan motor Photo 3 Coil plate Fan motor Clamp Wire cover fixing screw Nut a Washer Rubber mount 7 Removing the panel 1 Remove the air intake grille and the filter See Figure 1 2 Disconnect the connector CNV White 20P Corner panel See Figure 2 3 Remove the corner screw 4 Slide the corner panel to the direction of the arrow and remove the corner panel Panel See Photo 4 5 5 Remove the 2 screws from the panel which fixes to the oval holes 6 Rotate the panel a little to come to the bell shaped hole where the screw is large and remove the panel Figure 2 Screw Detail Screw Corner panel Corner panel Photo 4 c ud Oval hole Bell shaped hole al _p M SI 8 Removing the drain pan 1 Remove the air intake grille and the filter See Figure 1 2 Remove the 2 screws from the electrical box cover 3 Disconnect the connectors Refer to 4 4 Remove the pa
48. perature setting buttons ON OFF button Cv Down Fan Speed button CA Up Timer Menu button FA MITSUBISHI ELECTRIC Monitor Set button Filter 41 button lt Enter gt button B TEMP DON OFF Test Run button L Mode button Return button Set Time buttons Cv Cs Check button Clear button m l Cv Back Opos OMENU is FILTER Ahead bx ME T Ja BACK MONTORSE DAY amp z CHEK TEST Cv CA Airflow Up Down button Timer On Off button PAR 21MAA CLOCK V OPERATION A CLEAR Set Day button 7 kouver button VY Operation button To return operation number Opening the lid Ventilation button A Operation button J Built in temperature sensor CA To go to next operation number e Wired remote controller Display Section For purposes of this explanation all parts of the display are shown as lit During actual operation only the relevant items will be lit Day of Week Shows the current day of the week Time Timer Display Identifies the current operation Shows the current time unless the simple or Auto Off timer is set If the simpl
49. roller board FUSE 250V 6 3A Fan motor MF 8 pole OUTPUT 50W Spole OU TPUT 120W MSBPC20M04 Vane motor MV DC12V 3009 phase PLD 12230ME 1 Drain up mechanism DP INPUT 12 10 8W 24 Hr Drain float swich FS Open short detection v DC12V Stepping motor drive port Linear expansion valve LEV Steppingimotor Se pon aimension 3 2 0 2000pulse dimension 5 2 0 2000pulse 7 EDM 80YGME Power supply terminal TB2 L1 L2 GR 330V 30A block Transmission terminal TB5 M1 M2 S 250V 20A block MA remote controller TB45 1 2 250V 10A terminal block 5 4 WAY AIR FLOW SYSTEM 5 1 PLACEMENT OF THE AIR OUTLETS For this grille the blowout direction comes in 11 patterns Also by setting the remote controller to the appropriate settings you can adjust the air flow and speed Select the settings from Table1 according to the location in which you want to install the unit 1 Decide on the pattern of the airflow direction Table 1 4 direction 3 direction 2 direction Pattern 1 Initial setting Pattern 4 One air outlet fully closed Pattern 6 2 air outlet fully closed Blowout direction Note For 3 and 2 direction settings please use the air outlet shutter plate option 2 According to the number of air outlets and height of the ceiling to install the unit be sure to set up the switches SWA SWB on the address board to the appropriate setting
50. ti controller board operation monitor During fan operation linear expan sion valve is closed completely and if there If large amount of refriger ant is leaked exchange the linear expansion valve N Thermistor Liquid pipe iS any leaking detecting temperature of 4 Go Linear the thermistor will go lower If the detected expansion temperature is much lower than the tem valve 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 he leakage is small and not affecting normal operation Disconnect the connector at the controller board then check the continuity Check the color of lead wire and missing terminal of the con nector 24 10 1 3 DC Fan motor fan motor indoor controller board Check method of indoor fan motor fan motor indoor controller board Notes High voltage is applied to the connecter CNMF for the fan motor Pay attention to the service Do not pull out the connector CNMF for the motor with the power supply on It causes trouble of the indoor controller board and fan motor Self check Conditions The indoor fan cannot turn around Wiring contact check Contact of fan motor connector CNMF Contact of power supply cable lt Is there contact failure gt Yes 5 V No Power supply check Remove the connector CNMF Measure the volta
51. ting the 12V DC relay between the Yellow and Orange connector lines MB Electromagnetic switch power relay for duct fan X Auxiliary relay For DC 12V coil rating 1 0W or smaller I Multiple remote controller adapter PAC SA88HA E Be sure to secure insulation material by tape etc Indoor controller board Distance between indoor controller board and relay must be within 10m 33ft CN51 Multiple remote controller adapter PAC SA88HA E CN51 10 5 4 FRESH AIR INTAKE AMOUNT amp STATIC PRESSURE CHARACTERISTICS PLFY P12 P18 P24 PSONBMU E R1 Multifunction casement High efficiency filter 50020 x 0 50020 Oo a 100 40 7 8 150 60 I 9 200 80 0 1 2 3 4 5 6 CMM 50 100 150 200 i tris Air flow rate Taking air into the unit 50020 X 0 50 20 oO e g 100 40 7 8 150 60 9 S 9 200 80 0 1 2 3 4 5 6 CMM i 50 100 150 200 Air flow rate 2 PLFY P36NBMU E R1 Multifunction casement Standard filter 50020 x 0 50020 oO a 100 40 1500 60 lt I 9 200 80 0 2 4 6 8
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