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23

OCH610G

7

REFRIGERANT SYSTEM DIAGRAM

Strainer (#100mesh)

Heat exchanger

Capillary tube

Pipe temperature detection
thermistor/gas TH23

Distributor

Strainer (#100mesh)

LEV

Pipe temperature detection
thermistor/liquid TH22

Refrigerant flow in cooling

Refrigerant flow in heating

PLFY-EP06NEMU-E PLFY-EP08NEMU-E PLFY-EP12NEMU-E PLFY-EP15NEMU-E
PLFY-EP18NEMU-E PLFY-EP18NEMU-E1 PLFY-EP24NEMU-E PLFY-EP30NEMU-E
PLFY-EP36NEMU-E PLFY-EP48NEMU-E

Unit: in [mm]

Model

Item

PLFY-EP06/08/12/15/18NEMU-E

PLFY-EP18NEMU-E1

PLFY-EP24/30/36/48NEMU-E

Gas pipe

ø1/2 [12.7]

ø 5/8 [15.88]

Liquid pipe

ø1/4 [6.35]

ø 3/8 [9.52]

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Содержание CITY MULTI PLFY-EP06NEMU-E

Страница 1: ...WIRING DIAGRAM 22 7 REFRIGERANT SYSTEM DIAGRAM 23 8 MICROPROCESSOR CONTROL 24 9 TROUBLESHOOTING 31 10 DISASSEMBLY PROCEDURE 39 PLFY EP06NEMU E PLFY EP08NEMU E PLFY EP12NEMU E PLFY EP15NEMU E PLFY EP18NEMU E PLFY EP18NEMU E1 PLFY EP24NEMU E PLFY EP30NEMU E PLFY EP36NEMU E PLFY EP48NEMU E INDOOR UNIT Model name indication for MAIN UNIT PARTS CATALOG OCB610 R410A INDOOR UNIT FOR VRF SYSTEM February 2...

Страница 2: ...e enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor If large amount of mineral oil enters that can cause deterio ration of refrigerant oil etc Do not use the existing refrigerant piping The old refrigerant and lubricant in the existing piping contains a large amount of chlorine which may cause the lubricant deterioration of the new unit Use...

Страница 3: ...f syphon standing vertically Refrigerant is charged from liquid phase Electronic weighing scale Unit 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant No Tool name Specifications 1 Gauge manifold Only for R410A Use the existing fitting specifications UNF1 2 Use high tension side pressure of 768 7 PSIG 5 3MPa G or over 2 Charge hose Only for R410A Use pressure per...

Страница 4: ...t size H W D mm 120 120 14 5 120 70 14 5 LCD Full Dot LCD Partial Dot LCD Backlight Energy saving Energy saving operation schedule Automatic return to the preset temperature Restriction Setting the temperature range restriction Function Operation lock function Weekly timer ON OFF timer High Power Manual vane angle Some functions may not be available depending on model types Wired remote controller...

Страница 5: ...ge the operation mode Menu screen The button function varies with the screen 2 SELECT HOLD button 7 Function button F1 Press to return to the previous screen Main display Press to decrease temperature Main menu Press to move the cursor left Menu screen The button function varies with the screen 3 RETURN button 8 Function button F2 4 MENU button 9 Function button F3 Press to bring up the Main menu ...

Страница 6: ...the units are operated in the energy saving mode Will not appear on some models of indoor units Appears when the built in thermistor on the remote control ler is activated to monitor the room temperature 1 appears when the thermistor on the indoor unit is acti vated to monitor the room temperature Appears when an energy saving operation is performed us ing a 3D i see Sensor function Indicates the ...

Страница 7: ... timer Auto return Clock Main Sub Temp range Auto OFF timer Schedule Daylight saving time Clock Administrator password Operation locked 3D i see Sensor High power Vane Louver Vent Lossnay Comfort Timer Energy saving Basic setting Display setting Operation setting Restriction Weekly timer OU silent mode Black and white inversion setting Timer menu Main display Display details Contrast Brightness La...

Страница 8: ...me input Function setting Error history Maintenance password Dealer information input Error information Test run menu Maintenance information Filter information Cleaning Settings menu Check menu Other menu Auto descending panel Descending operation Self check Descending adjustment Remote controller check Continue from the previous page Not all functions are available on all models of indoor units ...

Страница 9: ...bled OU silent mode 1 Use to set the time periods in which priority is given to quiet operation of outdoor units over temperature control Set the Start Stop times for each day of the week Select the desired silent level from Normal Middle and Quiet Energy saving Restriction Temp range 2 Use to restrict the preset temperature range Different temperature ranges can be set for different operation mod...

Страница 10: ...ected Mainte nance Error information Use to check error information when an error occurs Check code error source refrigerant address unit model manufacturing number contact information dealer s phone number can be displayed The unit model manufacturing number and contact information need to be registered in advance to be displayed Filter information 8VH WR FKHFN WKH OWHU VWDWXV 7KH OWHU VLJQ FDQ E...

Страница 11: ...check code 4 digits will blink Check the error status stop the operation and consult your dealer icon appears while the unit is operated in the energy saving mode Note All icons are displayed for explanation purpose icon appears when Operation lock setting is effective icon appears when indoor unit functions are set up Refer to the Installation Manual Fan speed icon Vane icon icon appears when the...

Страница 12: ... 283 494 530 565 600 14 0 15 0 16 0 17 0 233 250 267 283 530 547 565 600 15 0 15 5 16 0 17 0 250 258 267 283 m min L s Sound pressure level Low Mid2 Mid1 High measure in anechoic room dB A 19 23 25 27 208 230 V ʊ ʊ 27 29 30 31 208 230 V ʊ ʊ 27 29 30 31 208 230 V ʊ ʊ 28 29 30 31 208 230 V ʊ ʊ dB A dB A Insulation material PS LU OWHU 33 KRQH FRPE ORQJ OLIH OWHU DQWL EDFWHULDO W SH Protection device ...

Страница 13: ... 812 18 0 19 0 21 0 23 0 300 317 350 383 636 706 777 812 18 0 20 0 22 0 23 0 300 333 367 383 m min L s Sound pressure level Low Mid2 Mid1 High measure in anechoic room dB A 28 30 31 32 208 230 V ʊ ʊ 28 30 32 34 208 230 V ʊ ʊ 28 30 32 34 208 230 V ʊ ʊ 28 31 33 35 208 230 V ʊ ʊ dB A dB A Insulation material PS LU OWHU 33 KRQH FRPE ORQJ OLIH OWHU DQWL EDFWHULDO W SH Protection device Fuse Refrigerant...

Страница 14: ...igh measure in anechoic room dB A 35 37 39 41 208 230 V ʊ ʊ 36 39 42 45 208 230 V ʊ ʊ dB A dB A Insulation material PS LU OWHU 33 KRQH FRPE ORQJ OLIH OWHU DQWL EDFWHULDO W SH Protection device Fuse Refrigerant control device LEV Connectable outdoor unit R410 CITY MULTI Diameter of refrigerant pipe O D Liquid in mm 3 8 9 52 Flare 3 8 9 52 Flare Gas in mm 5 8 15 88 Flare 5 8 15 88 Flare Field drain ...

Страница 15: ...re level in anechoic room Low Mid2 Mid1 High Sound pressure level dB A PLFY EP06NEMU E 19 23 25 27 PLFY EP08NEMU E PLFY EP12NEMU E 27 29 30 31 PLFY EP15NEMU E 28 29 30 31 PLFY EP18NEMU E 28 30 31 32 PLFY EP18NEMU E1 PLFY EP24NEMU E 28 30 32 34 PLFY EP30NEMU E 28 31 33 35 PLFY EP36NEMU E 35 37 39 41 PLFY EP48NEMU E 36 39 42 45 ...

Страница 16: ...ctave band center frequencies Hz PLFY EP18NEMU E WHUQDO 6WDWLF 3UHVVXUH 3D LQ 3RZHU 6RXUFH 9 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 NC 60 NC 50 2FWDYH EDQG SUHVVXUH OHYHO G G ȝ3D Approximate minimum audible limit on continuous noise NC 40 NC 30 NC 20 High Middle 60Hz Middle2 60Hz Low 60Hz 60Hz 63 125 250 500 1k 2k 4k 8k Octave band center frequencies Hz PLFY EP24NEMU E PL...

Страница 17: ...LVWDQFH N N N N N N Fuse Indoor controller board FUSE UL 6 3A 250 V AC Fan motor MF 8 pole OUTPUT 50W 8 pole OUTPUT 120W Vane motor MV MSBPC20M04 9 SKDVH Drain pump DP PLD 12230ME 1 INPUT 12 10 8W 24R Hr UDLQ ÀRDW VZLWFK FS Open short detection Linear expansion valve LEV 12 V DC Stepping motor drive port dimension ø3 2 0 2000pulse EDM 40YGME 12 V DC Stepping motor drive port dimension ø5 2 0 2000p...

Страница 18: ...ording to the number of air outlets and height of the ceiling to install the unit be sure to set up the switch SW21 on the indoor controller board to the appropriate setting Correspondence of ceiling heights to numbers of air outlets PLFY EP06 08 12 15 18 24 30NEMU E PLFY EP18NEMU E1 PLFY EP36 48NEMU E Silent Standard High ceiling Silent Standard High ceiling SW21 1 SW21 2 SW21 1 SW21 2 SW21 1 SW2...

Страница 19: ...er relay for duct fan X Auxiliary relay For 12 V DC coil rating 1 0W or smaller Unit in mm Branch duct hole A A A Drain pipe Fresh air intake hole diagram Refrigerant pipe Branch duct hole diagram view from either side 13 25 32 3 15 16 350 100 cutout hole ø5 29 32 ø150 cutout hole ø6 7 8 ø175 burring hole pitch ø4 29 32 ø125 burring hole pitch ø3 15 16 ø100 cutout hole Ceiling Fresh air intake hol...

Страница 20: ...20 OCH610G 2 PLFY EP18NEMU E1 PLFY EP24 30 36 48NEMU E Taking air into the unit Multifunction casement High efficiency filter Multifunction casement High efficiency filter 4 4 FRESH AIR INTAKE AMOUNT STATIC PRESSURE CHARACTERISTICS 1 PLFY EP06 08 12 15 18NEMU E Taking air into the unit Multifunction casement Standard filter Q 0 B A C 1 Curve in the graphs Duct characteristics at site Q A E C 2 Q Q...

Страница 21: ...H610G 21 5 OUTLINES AND DIMENSIONS PLFY EP06NEMU E PLFY EP08NEMU E PLFY EP12NEMU E PLFY EP15NEMU E PLFY EP18NEMU E PLFY EP18NEMU E1 PLFY EP24NEMU E PLFY EP30NEMU E PLFY EP36NEMU E PLFY EP48NEMU E Unit in mm ...

Страница 22: ...22 OCH610G WIRING DIAGRAM 6 PLFY EP06NEMU E PLFY EP08NEMU E PLFY EP12NEMU E PLFY EP15NEMU E PLFY EP18NEMU E PLFY EP18NEMU E1 PLFY EP24NEMU E PLFY EP30NEMU E PLFY EP36NEMU E PLFY EP48NEMU E ...

Страница 23: ...thermistor liquid TH22 Refrigerant flow in cooling Refrigerant flow in heating PLFY EP06NEMU E PLFY EP08NEMU E PLFY EP12NEMU E PLFY EP15NEMU E PLFY EP18NEMU E PLFY EP18NEMU E1 PLFY EP24NEMU E PLFY EP30NEMU E PLFY EP36NEMU E PLFY EP48NEMU E Unit in mm Model Item PLFY EP06 08 12 15 18NEMU E PLFY EP18NEMU E1 PLFY EP24 30 36 48NEMU E Gas pipe ø1 2 12 7 ø 5 8 15 88 Liquid pipe ø1 4 6 35 ø 3 8 9 52 ...

Страница 24: ... OFF commands to the compressor but an open close commands to the linear expansion valve The compressor stops only when the thermostatic control for all the indoor units connected to the same outdoor unit turns OFF 1 2 Anti freeze control Ŷ Condition to detect When the pipe temperature detection thermistor liquid TH22 detects 32 F or less in 16 minutes from thermo ON the anti freeze control initia...

Страница 25: ... Q WKH ZDWHU HWHFWHG WKDW WKH ÀRDW VZLWFK LV 21 IRU VHFRQGV Q WKH DLU HWHFWHG WKDW WKH ÀRDW VZLWFK LV 2 IRU VHFRQGV ON OFF 15 s 15 s 15 s 1 min 30 s 1 min 30 s Float SW In the water In the air In the water Error postponement Drain pump abnormal 4 Vane up down vane change 1 The initial vane setting for COOL mode will be the horizontal position 2 Vane position RUL RQWDO ĺ RZQZDUG ĺ RZQZDUG ĺ RZQZDUG...

Страница 26: ...ture TH21 Dry thermo ON Room temperature Set temperature 2 F Dry thermo OFF Room temperature Set temperature Room temperature 3 minutes passed since starting operation Dry thermo ON time min Dry thermo OFF time min Thermostat signal Room temperature T1 Over 64 F ON T1 83 F 9 3 83 F T1 79 F 7 3 79 F T1 75 F 5 3 75 F T1 3 3 OFF Unconditional 3 10 Below 64 F Dry thermo OFF 1 2 Anti freeze control No ...

Страница 27: ... LQ WKH ZDWHU ZKHQ WKH ÀRDW VZLWFK control judges the sensor is in the water 2 2 Float switch control Float switch control judges whether the sensor is in the air or in the water by turning the ÀRDW VZLWFK 21 2 Q WKH ZDWHU HWHFWHG WKDW WKH ÀRDW VZLWFK LV 21 IRU VHFRQGV Q WKH DLU HWHFWHG WKDW WKH ÀRDW VZLWFK LV 2 IRU VHFRQGV Operates as it would in COOL operation 3 Vane up down vane change Same as ...

Страница 28: ...arks 1 Temperature adjustment function 1 1 Determining temperature adjustment function Function to prevent restarting for 3 minutes Room temperature 6HW WHPSHUDWXUH í āāā7KHUPR 21 Room temperature Set temperature Thermo OFF 2 Fan By the remote controller setting switch of 4 speeds Auto Type Fan speed notch 4 speeds Auto type When Auto is set fan speed is changed depending on the value of 7 6HW WHP...

Страница 29: ...ture adjustment function changes to OFF the indoor fan operates in Extra low 2 4 Heat defrosting mode The indoor fan stops 3 Drain pump 3 1 Drain pump control 7KH GUDLQ SXPS WXUQV 21 IRU WKH VSHFL HG DPRXQW RI WLPH ZKHQ DQ RI WKH IROORZLQJ FRQGLWLRQV KDV EHHQ VDWLV HG 1 ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode FAN 2 21 IRU PLQXWHV DIWHU WKH À...

Страница 30: ... minutes have passed 22 PRGH ĺ 7 PRGH Room temperature 6HW WHPSHUDWXUH í RU PLQXWHV KDYH SDVVHG 3 COOL mode Operates as it would in COOL operation 4 HEAT mode Operates as it would in HEAT operation 8 6 WHEN UNIT IS STOPPED CONTROL MODE Control Mode Control Details Remarks 1 Drain pump 1 1 Drain pump control 7KH GUDLQ SXPS WXUQV 21 IRU WKH VSHFL HG DPRXQW RI WLPH ZKHQ DQ RI WKH IROORZLQJ FRQGLWLRQV...

Страница 31: ...RU VWDUWV WR URWDWH Purple Black Abnormal check code 2502 if it outputs 0 13 V square wave 5 pulses rotation and the number of rotation is not normal UDLQ ÀRDW VZLWFK 6 Measure the resistance between the terminals with a tester State of moving part Normal Abnormal UP Short Other than short DOWN Open Other than open 3D i see Sensor Turn the power ON while the i see Sensor connector is connected to ...

Страница 32: ... k Thermistor for lower temperature 9 1 2 Linear expansion valve 1 Operation summary of the linear expansion valve Linear expansion valve opens closes 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 1 273 t...

Страница 33: ...does not light while the signals are output or keeps lighting even after the signals stop Countermeasures Exchange the indoor con troller board at drive circuit failure Linear expansion valve mechanism is locked 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 ot...

Страница 34: ... wiring Trouble of the indoor controller board Replace the indoor controller board Trouble of the fan motor Replace the defective fan motor Does the voltage repeat 0 and 15 V DC Replace the indoor controller board Is the voltage normal Is there contact failure Yes 1 2 No Yes No Yes Power supply check Remove the connector CNMF Measure the voltage in the indoor controller circuit board TEST POINT 1 ...

Страница 35: ...nly Cooling only Heat pump Under suspension Indoor controller board Initial setting Set for each capacity ON OFF 1 2 3 4 5 6 7 8 9 0 4 Refer to the Table C below for SW3 5 and SW 3 6 2 RXYHU XPLGL HU 3 3D i see Sensor positioning Depending on the combination of SW3 3 and SW3 4 Refer to the Table B below Before power supply ON 4 5 Vane horizontal angle 1 Second setting 4 First setting 4 Under suspe...

Страница 36: ...Initial setting ON OFF 1 2 3 4 5 6 2 Setting the ceiling height 3 Setting the number of air outlet Depending on the combination of SW21 3 and SW21 4 Refer to the Table E below 4 Setting the number of air outlet 5 Setting for optional parts Option Standard 6 Not used Not used Not used Continue to the next page PLFY EP06 08 12 15 18 24 30NEMU E PLFY EP18NEMU E1 PLFY EP36 48NEMU E Silent Standard Hig...

Страница 37: ...ET 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 3UHVV WKH 0 187 EXWWRQ WZLFH 7KH SDLU 1R DSSHDUV ÀDVKLQJ 3 Press the TEMP buttons to select the pair No to set 4 Press the SET button using a pointed implement The set pair is displayed steadily lit for 3 seconds then disapp...

Страница 38: ...V DC Operation 12 V DC pulse LED1 Main power supply Indoor unit 208 230 V CN51 Centrally control 1 2 Control signal 12 V DC pulse input 1 3 4 Operation indicator 12 V DC 3 3 5 Malfunction indicator 12 V DC 3 CN52 Remote indicator 1 2 Status lamp 12 V DC 1 Fan motor output SW1 5 OFF Thermostat ON SW1 5 ON 1 3 Cooling Dry status lamp 12 V DC 1 1 4 Heating status lamp 12 V DC 1 CN4Z i see Sensor sens...

Страница 39: ... WH for i see Sensor motor CN4Z WH for i see Sensor sensor CN90 WH for wireless remote controller board CNP WH for drain pump CN4F WH for float switch CN44 WH for pipe temperature detection thermistor liquid CND BK for indoor controller board power supply Disconnect the connectors for optional parts if any 4 Disconnect the lead wire connected to the TB5 on the indoor controller board TB5 M NET tra...

Страница 40: ...er Photo 9 6 Removing the turbo fan 1 Remove the electrical box See Photo 3 and refer to 5 2 Remove the bell mouth tapping screw 4 10 2 screws See Photo 6 With nut and square washer 3 Remove the nut M8 1 and a square washer See Photo 7 and 8 4 Remove the turbo fan With nut and washer 3 Remove the nut M8 1 and a washer See Photo 7 and 8 4 Remove the turbo fan Note 1 When assembling the turbo fan at...

Страница 41: ...ving the grille 1 Remove the intake grille and the filter See Procedure 1 2 Remove the electrical box cover See Procedure 2 3 Disconnect the connector CNV WH 4 Loosen the 4 corner panel fixing screw tapping 4 16 see Figure 4 5 Slide the corner panel to the direction of the arrow 1 and remove the corner panel 6 Remove the 4 installation screws M5 28 See Photo 11 7 Release the 2 temporary hanging ho...

Страница 42: ... are inserted into the hold ers installed to the thin copper pipe Photo 14 11 Removing the drain pump DP and float switch FS 1 Remove the intake grille and the filter See Procedure 1 2 Remove the electrical box cover See Procedure 2 3 Disconnect the connectors Refer to Procedure 4 4 Remove the grille See Procedure 8 5 Remove the electrical box See Procedure 5 6 Remove the 2 bell mouth fixing screw...

Страница 43: ...ve the 2 coil plate fixing screws tapping screw 4 10 to remove the coil plate See Photo 17 10 Remove the heat exchanger fixing screws tapping screw 4 10 to remove the coil support See Photo 17 11 Remove the coil support fixing screws tapping screw 4 10 to remove the coil support 1 See Photo 17 PLFY EP06 08 12 15 18NEMU E 1 coil support PLFY EP18NEMU E1 PLFY EP24 30 36 48NEMU E 3 coil supports 12 R...

Страница 44: ...REVISED EDITION E Issued Mar 2018 No OCH610 REVISED EDITION D Issued Aug 2017 No OCH610 REVISED EDITION C Issued Jun 2017 No OCH610 REVISED EDITION B Issued Jun 2016 No OCH610 REVISED EDITION A Published Mar 2016 No OCH610 Made in Japan Specifications are subject to change without notice HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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