Mitsubishi Electric City Multi PCFY-P100VKM-E Technical & Service Manual Download Page 20 | Manualshive

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REFRIGERANT SYSTEM DIAGRAM

Refrigerant flow in cooling
Refrigerant flow in heating

Strainer (#100 mesh)

Strainer (#100 mesh)

Strainer1 (#50 mesh)

Strainer2 (#100 mesh)

Heat exchanger

Room temparature thermistor TH21

Gas pipe thermistor TH23

Liquid pipe thermistor TH22

Linear expansion valve

Gas pipe

Liquid pipe

Flare connection

Gas pipe

Liquid pipe

PCFY-P40VKM-E

PCFY-P40VKM-ER1

ø12.7 (1/2)

ø6.35 (1/4)

PCFY-P63VKM-E, PCFY-P63VKM-ER1

PCFY-P100VKM-E, PCFY-P100VKM-ER1

PCFY-P125VKM-E, PCFY-P125VKM-ER1

ø15.88 (5/8)

ø9.52 (3/8)

Item

Service Ref.

Unit : mm (inch)

PCFY-P40VKM-E

PCFY-P63VKM-E

PCFY-P100VKM-E

PCFY-P125VKM-E

PCFY-P40VKM-ER1

PCFY-P63VKM-ER1

PCFY-P100VKM-ER1

PCFY-P125VKM-ER1

OCH449A

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Summary of Contents for City Multi PCFY-P100VKM-E

Page 1: ...PLIT TYPE HEAT PUMP AIR CONDITIONERS R410A Note This manual describes only service data of the indoor units RoHS compliant products have G mark on the spec name plate December 2012 PARTS CATALOG OCB449 Model name indication PCFY P40VKM E PCFY P63VKM E PCFY P100VKM E PCFY P125VKM E PCFY P40VKM E PCFY P40VKM ER1 PCFY P63VKM E PCFY P63VKM ER1 PCFY P100VKM E PCFY P100VKM ER1 PCFY P125VKM E PCFY P125VK...

Page 2: ...auge manifold Torque wrench Gas leak detector Charge hose Tools for R410A If dirt dust or moisture 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 co...

Page 3: ...ylinder Check that cylinder for R410A on the market is syphon type Charging should be performed with the cylinder of syphon standing vertically Refrigerant is charged from liquid phase No Tool name Specifications 1 Gauge manifold Only for R410A Use the existing fitting specifications UNF1 2 Use high tension side pressure of 5 3MPa G or over 2 Charge hose Only for R410A Use pressure performance of ...

Page 4: ...4 3 1 INDOOR UNIT 3 PART NAMES AND FUNCTIONS Air outlet Louver Vane Air intake Filter Inside of Air intake OCH449A ...

Page 5: ... error ON OFF lamp Main display Press to change the operation mode Main menu Press to move the cursor down Function button F1 Main display Press to decrease temperature Main menu Press to move the cursor up Function button F2 Main display Press to increase temperature Main menu Press to go to the previous page Function button F3 Main display Press to change the fan speed Main menu Press to go to t...

Page 6: ... ON OFF operation is centrally controlled Appears when the operation mode is centrally controlled Appears when the preset temperature is centrally controlled Appears when the f lter reset function is centrally controlled Indicates when f lter needs maintenance Current room temperature appears here Room temperature See the Installation Manual Appears when the buttons are locked Appears when the On ...

Page 7: ...er Vent Lossnay High power Weekly timer Restriction Maintenance Initial setting On Off timer Auto Off timer Temp range Operation lock Manual vane angle Main Sub Timer Main display Contrast Display details Auto mode Administrator password Language selection Service Service menu Input maintenance info Function setting Lossnay City Multi only Check Self check Maintenance password Remote controller ch...

Page 8: ...perate at the preset temperature after performing energy save operation for a specif ed time period Time can be set to a value from 30 and 120 in 10 minute increments This function will not be valid when the preset temperature ranges are restricted Schedule Set the start stop times to operate the units in the energy save mode for each day of the week and set the energy saving rate Up to four energ...

Page 9: ...nce Select Input maintenance Info from the Service menu to bring up the Maintenance information screen The following settings can be made from the Maintenance Information screen Model name input Serial No input Dealer information input Function setting Make the settings for the indoor unit functions via the remote controller as necessary LOSSNAY setting City Multi only This setting is required onl...

Page 10: ...play range is 8 39 C The display blinks if the temperature is less than 8 C or 39 C 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 Fan Speed indicator Shows the selected fan speed Ventilation indicator Appears when the unit is running in Ventilation mode Operation Section Temperature set...

Page 11: ...0 65 0 76 External finish MUNSELL 6 4Y 8 9 0 4 External dimensions H x W x D mm 230 960 680 230 1280 680 230 1600 680 in 9 1 16 37 13 16 26 3 4 9 1 16 50 3 8 26 3 4 9 1 16 63 26 3 4 Net weight kg lb 24 53 32 71 36 79 38 84 Heat exchanger Cross fin Aluminum fin and copper tube FAN Type x quantity Sirocco fan 2 Sirocco fan 3 Sirocco fan 4 External Pa 0 static press mmH2O 0 Motor type DC motor Motor ...

Page 12: ...ntroller board Drain pump Option Fan motor Power supply terminal block Transmission terminal block MA remote controller terminal block 8 pole OUTPUT 90W 8 pole OUTPUT 95W 8 pole OUTPUT 160W MSBPC20 DC12V 300Ω phase INPUT 12 10 8W 24 Hr Open Short detection DC 5V DC12V Stepping motor drive Port dimension ø5 2 0 2000pulse EFM 80YGME DC12V Stepping motor drive Port dimension ø3 2 0 2000pulse EFM 40YG...

Page 13: ...tave band pressure level dB 0dB 20μPa Octave band center frequencies Hz 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 63 125 250 500 1k 2k 4k 8k NC 60 NC 50 Approximate minimum audible limit on continuous noise NC 40 NC 20 NC 30 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 63 125 250 500 1k 2k 4k 8k NC 60 NC 50 Approximate minimum audible limit on continuous ...

Page 14: ...RISTICS Q 0 B A C 1 Curve in the graphs Duct characteristics at site Q A E C 2 Q Qa A D 3 Q Designed amount of fresh air intake m3 min A Static pressure loss of fresh air intake duct system with airflow amount Q Pa B Forced static pressure at air conditioner inlet with airflow amount Q Pa C Static pressure of booster fan with airflow amount Q Pa D Static pressure loss increase amount of fresh air ...

Page 15: ...rainage pipe connection for the left arrangement Knock out hole for left drain piping arrangement Refrigerant pipe connection gas pipe side flared connection Refrigerant pipe connection liquid pipe side flared connection 1 In case of the rear pipe arrangement make sure to remove the shaded portions from the independent piece Then put the independent piece back in initial position The heat exchange...

Page 16: ...hor bolt 2 Please be sure when installing the drain lift up mechanism option parts refrigerant pipe will be only upward Air outlet 233 Electrical box When electrical box is pulled down Electrical box 9 7 In case of the rear pipe arrangement make sure to remove the shaded portions from the independent piece Then put the independent piece back in initial position The heat exchanger might be clogged ...

Page 17: ...2 NOTES 1 Use M10 or W3 8 screw for anchor bolt 2 Please be sure when installing the drain lift up mechanism option parts refrigerant pipe will be only upward In case of the rear pipe arrangement make sure to remove the shaded portions from the independent piece Then put the independent piece back in initial position The heat exchanger might be clogged because of dust 5 10 51 246 180 200 Drainage ...

Page 18: ... TH21 TH23 TH22 CN27 RED LED1 X1 DSA ZNR02 FUSE ZNR01 TB5 SHIELD TB2 BLU BLU RED BLU GRN YLW TO OUTDOOR UNIT BC CONTROLLER REMOTE CONTROLLER DC24 30V TO NEXT INDOOR UNIT PULL BOX FUSE 16A BREAKER 16A POWER SUPPLY N 220 240V 50Hz 220V 60Hz I B DC311 339V RECTIFICATION BZ LEV LED2 SW1 CNB TO MA REMOTE CONTROLLER DC8 7 13V OPTIONAL PARTS OPTIONAL PARTS TB15 BLU BLU SW2 LED1 RU W B Pair No J42 J41 1 4...

Page 19: ...L TH21 ROOM TEMP DETECTION 0 C 15kΩ 25 C 5 4kΩ THERMISTOR ADDRESS SETTING 1s DIGIT ADDRESS SETTING 10ths DIGIT BRANCH No 1 9 Be sure to turn off the source power and then disconnect fan motor connector Failure to do so will cause trouble in Fan motor A B RED ADDRESS CN43 ADDRESS CN81 RED LED2 ADDRESS CN42 RED RED ADDRESS CN82 VANE CNV WHT SWA SWC SW1 MV SW12 SW11 CN32 WHT SW3 SW4 SWE SW2 SW14 ON O...

Page 20: ...Liquid pipe thermistor TH22 Linear expansion valve Gas pipe Liquid pipe Flare connection Gas pipe Liquid pipe PCFY P40VKM E PCFY P40VKM ER1 ø12 7 1 2 ø6 35 1 4 PCFY P63VKM E PCFY P63VKM ER1 PCFY P100VKM E PCFY P100VKM ER1 PCFY P125VKM E PCFY P125VKM ER1 ø15 88 5 8 ø9 52 3 8 Item Service Ref Unit mm inch PCFY P40VKM E PCFY P63VKM E PCFY P100VKM E PCFY P125VKM E PCFY P40VKM ER1 PCFY P63VKM ER1 PCFY ...

Page 21: ...hermistor TH21 Liquid pipe thermistor TH22 Gas pipe thermistor TH23 1 3 Normal 4 3kΩ 9 6kΩ Abnormal Open or short Normal Abnormal 290Ω Open or short State of moving part Abnormal DOWN Other than open UP Normal Open Short Other than short Measure the resistance between the terminals with a tester At the ambient temperature of 20 C 30 C Vane motor MV Abnormal Open or short Red Yellow Red Blue Red Or...

Page 22: ...ber of B 3480 2 Rt 15exp 3480 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Thermistor for lower temperature 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 can be changed in proportion to the number of puls...

Page 23: ...t 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 other indoor un...

Page 24: ...en 5 and 4 of the fan connector VCC DC15V Wiring recovery Replace indoor controller board Replace indoor controller board Replace the fan motor Replace the fan motor Indoor controller board fuse check Replace indoor controller board Replace the fan motor Is the voltage normal Is there contact failure No Yes No No Is the fuse normal Replace the fuse Yes Check the operation END OK Check the operatio...

Page 25: ...at setting temperature 5 Sub cool setting temperature 5 Heat pump Not available Not available Not available First setting 4 Setting A B C D Not effective Effective 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 SW2 Capacity code setting 1 6 1 5 SW3 Function setting Thermistor Room temperature detection position Initial setting ON OFF 1 2 3 4 5 6 7 8 9 10 Indoor controller board Indoor controller board ...

Page 26: ...oller board and the Pair No of wireless remote controller You may not set it when operating it by 1 remote controller Setting for indoor unit Jumper wire J41 J42 on the indoor controller board are cut according to the table below Wireless remote controller pair number Setting operation 1 Press the SET button using a pointed implement Check that the remote controller s display has stopped before co...

Page 27: ...TH22 Gas TH23 CN4F Drain float switch FS CN20 Room temperature thermistor TH21 CN27 Damper signal output 12VDC CN90 Connect to the wireless remote controller board W B LED1 Main power supply Indoor unit 220 240V CNMF Connect to the fan motor MF DC310 340V DC15V DC0 6V DC0 or DC15V CNP Drain pump output DP 220 240VAC CN51 Centrally control 1 2 Control signal 12VDC pulse input 1 3 4 Operation indica...

Page 28: ...e thermistor Liquid TH22 Gas TH23 CN4F Drain float switch FS CN20 Room temperature thermistor TH21 CN27 Damper signal output 12VDC CN90 Connect to the wireless remote controller board W B LED1 Main power supply Indoor unit 220 240V CNMF Connect to the fan motor MF DC310 340V DC15V DC0 6V DC0 or DC15V CNP Drain pump output DP 220 240VAC CN51 Centrally control 1 2 Control signal 12VDC pulse input 1 ...

Page 29: ...ing 1st DIGIT SW14 Branch No SWC Option selector SW1 Function setting SWA Ceiling height selector 29 8 3 2 Address board PCFY P40VKM E PCFY P63VKM E PCFY P100VKM E PCFY P125VKM E PCFY P40VKM ER1 PCFY P63VKM ER1 PCFY P100VKM ER1 PCFY P125VKM ER1 OCH449A ...

Page 30: ...x using 2 hooks in the back of electrical box 5 Disconnect the connectors on the indoor controller board Removing the electrical box 6 Disconnect the wires from the terminal blocks and pull out the electrical box See Photo 2 Removing the indoor controller board 6 Remove the 6 supports from the indoor controller board and remove the indoor controller board See Photo 3 Figure 1 Photo 1 Photo 2 slide...

Page 31: ... the electrical cover and remove the electrical cover 4 Remove 2 screws from the electrical box and pull the electrical box downward 5 Temporarily secure the electrical box using 2 hooks in the back of electrical box 6 Remove 4 screws fixing fan guard of the fan motor 2 screws See Photo 5 2 screws Upper the electrical box 7 Remove 2 screws fixing fan guard of piping side and remove the fan guard S...

Page 32: ...4 screws from the fan guard of the fan motor See Photo 5 6 Remove 2 screws from the left side beam and remove the beam See Photo 1 7 Remove the 3 screws from center fan guard and remove the fan guard 2 screws See Photo 9 1 screw Drain pan side 8 Remove 2 screws from the left fan guard and remove the fan guard See Photo 10 9 Loosen 2 set screws 2 hexagon set screws of connect ing joint See Photo 5 ...

Page 33: ... right side panel See Figure 3 3 Remove the connector of vane motor 4 Remove 2 screws of vane motor cover then remove vane motor Photo 13 Screws Connector Vane motor and cover Photo 14 Under panel fixing screws 9 Removing the drain pan 1 Remove the air intake grille See Figure 1 2 2 Remove the side panel right and left See Figure 3 3 Remove the under panel See Photo 14 Remove the screws of the rig...

Page 34: ...e vane then remove the guide vane 10 Removing the pipe thermistors Liquid TH22 and Gas TH23 1 Remove the air intake grille See Figure 1 2 2 Remove the left and right side panels See Figure 3 3 Remove the under panel See Photo 14 4 Remove the drain pan See Photo 15 16 17 5 Disconnect the connector CN44 white from the indoor controller board 6 Remove 6 screws from the pipe cover and remove the pipe ...

Page 35: ...Remove the left and right side panels See Figure 3 7 Remove the under panel See Photo 14 8 Remove the drain pan See Photo 15 16 17 9 Remove the pipe cover See Photo 18 10 Remove the pipe thermistors TH22 and TH23 from each holder See Photo 19 11 Remove the pipe band fixing screw and remove the pipe band See Photo 22 12 Remove 2 screws from the heat exchanger and remove the heat exchanger with LEV ...

Page 36: ...buted in Dec 2012 No OCH449 REVISED EDITION A Distributed in Dec 2008 No OCH449 PDF 7 Made in Japan New publication effective Dec 2012 Specifications are subject to change without notice HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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