Mitsubishi Electric CITY MULTI PEFY-P100VMAE, Technical & Service Manual

Page 1: ...S TECHNICAL SERVICE MANUAL Models PEFY P20VMA L E PEFY P25VMA L E PEFY P32VMA L E PEFY P40VMA L E PEFY P50VMA L E PEFY P63VMA L E PEFY P71VMA L E PEFY P80VMA L E PEFY P100VMA L E PEFY P125VMA L E PEFY P140VMA L E 2012 ...

Page 2: ...unit on a surface that can withstand its weight Unit installed on an unstable surface may fall and cause in jury Only use specified cables Securely connect each cable so that the terminals do not carry the weight of the cable Improperly connected cables may produce heat and start a fire Take appropriate safety measures against wind gusts and earthquakes to prevent the unit from toppling over Impro...

Page 3: ...ean and free of such contaminants as sulfur oxides dust dirt shaving particles oil and moisture Contaminants in the refrigerant piping may cause the refrig erator oil to deteriorate Store the piping materials indoors and keep both ends of the pipes sealed until immediately before brazing Keep el bows and other joints wrapped in plastic Infiltration of dust dirt or water into the refrigerant system...

Page 4: ...iring Diagram 11 VI Refrigerant System Diagram 1 Refrigerant system diagram 13 VII Troubleshooting 1 Troubleshooting 14 1 Check methods 14 2 DC fan motor fan motor indoor control board 18 3 Address switch setting 19 4 Voltage test points on the control board 20 5 Dipswitch setting Factory setting 21 VIII Disassembly Procedure 1 Disassembly Procedure 24 1 Control box 24 2 Thermistor Intake air 25 3...

Page 5: ...HWE0812B GB ...

Page 6: ...pacity kW PEFY P20VMA L E 2 2 2 5 PEFY P25VMA L E 2 8 3 2 PEFY P32VMA L E 3 6 4 0 PEFY P40VMA L E 4 5 5 0 PEFY P50VMA L E 5 6 6 3 PEFY P63VMA L E 7 1 8 0 PEFY P71VMA L E 8 0 9 0 PEFY P80VMA L E 9 0 10 0 PEFY P100VMA L E 11 2 12 5 PEFY P125VMA L E 14 0 16 0 PEFY P140VMA L E 16 0 18 0 ...

Page 7: ...right hand section of the remote controller must be free from obstructions to ensure accurate mea surement of room temperature 1 In case of rear inlet 2 In case of bottom inlet 1 Set Temperature Button 7 Vane Control Button 2 Timer Menu Button 8 Ventilation Button Monitor Set Button Operation Button 3 Mode Button 9 Check Clear Button Back Button 10 Test Run Button 4 Timer On Off Button 11 Filter B...

Page 8: ...r swing B Centralized control indicator J Ventilation C Timer OFF indicator K Filter sign D Timer mode indicator L Sensor position E Operation mode display COOL DRY AUTO FAN HEAT M Room temperature F Function mode indicator N Vane setting G Preset temperature O Fan speed H Power indicator P Operation lamp ...

Page 9: ...nized Dimensions Height mm 250 Width mm 700 900 Depth mm 732 Net weight 2 kg 23 22 26 25 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 1 Airflow rate Low Mid High m3 min 6 0 7 5 8 5 7 5 9 0 10 5 10 0 12 0 14 0 External static pressure Pa 35 50 70 100 150 Motor Output kW 0 085 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed connection m...

Page 10: ... weight 2 kg 26 25 32 31 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 1 Sirocco fan x 2 Airflow rate Low Mid High m3 min 12 0 14 5 17 0 13 5 16 0 19 0 14 5 18 0 21 0 External static pressure Pa 35 50 70 100 150 Motor Output kW 0 085 0 121 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed con nection mm in ø12 7 ø1 2 ø15 88 ø5 8 Liquid B...

Page 11: ...mm 732 Net weight 2 kg 42 41 46 45 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 2 Airflow rate Low Mid High m3 min 23 0 28 0 33 0 28 0 34 0 40 0 29 5 35 5 42 0 External static pressure Pa 35 50 70 100 150 Motor Output kW 0 244 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed con nection mm in ø15 88 ø5 8 Liquid Brazed connection mm in ...

Page 12: ...kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Gas pipe thermistor TH23 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Fuse FUSE 250V 6 3A Fan motor 8 pole Output 85W SIC 70CW D885 2 8 pole Output 121W SIC 70CW D8121 1 Linear expansion valve LEV 12VDC Stepping motor drive port diameter ø3 2 0 2000 pulse Power supply terminal block TB2 L N 250V 20A Transmission terminal ...

Page 13: ...1400 1600 1454 1654 1500 1700 1360 1560 14 16 1000 1000 F 858 800 G 658 1058 600 1480 1280 5 5 300 150 44 49 800 1000 260 L K 330 J H 1200 1500 1700 54 54 320 370 54 4 M 780 4 N 990 12 12 10 P 10 10 ø15 88 ø9 52 ø12 7 ø6 35 Gas pipe 1 Liquid pipe 2 65 0 10 Actual length Less than 300mm Less than 700mm Drain hose I D ø32 accessory Air Filter G 21 A B Suspension bolt pitch C 23 Air inlet L 6 J K K x...

Page 14: ... E PEFY P20 25 32VMAL E 1400 1600 1454 1654 1500 1700 1360 1560 14 16 1000 1000 F 858 800 G 658 1058 600 1480 1280 5 5 300 150 44 49 800 1000 260 L K 330 J H 1200 1500 1700 54 54 320 370 54 4 M 780 4 N 990 12 12 10 P 10 10 ø15 88 ø9 52 ø12 7 ø6 35 Gas pipe 1 Liquid pipe 2 250 40 33 122 21 23 178 Duct 23 10 32 700 732 136 67 356 100 217 643 Suspension bolt pitch Air Filter Control box Refrigerant p...

Page 15: ...in Fig 4 or Create access door 4 below the electric box and the unit as shown in Fig 5 Electric box Ceiling Min 300 mm Min 10 mm Viewed from the direction of the arrow A Access door 2 450 450 Ceiling beam Intake air Supply air Electric box Ceiling Min 20 mm Min 10 mm Viewed from the direction of the arrow B Ceiling beam Access door 3 Intake air Supply air 700 450 475 450 R 50 150 450 450 100 200 B...

Page 16: ...0V Rectifier circuit U Red X01 CNP F01 DSA ZNR02 CND ZNR01 Blue Drainpump Fan motor 5 3 2 1 4 4 4 5 6 7 1 2 1 1 2 3 Blue CNXB1 CNMF CNXA1 CNXC1 ONLY FOR PEFY P VMA E MS 3 M 1 I B 1 4 3 1 2 2 1 5 4 2 3 CN4F Blue CNXA2 CN52 CN20 CN41 CN51 CNXB2 CNXC2 Red CN44 Green 1 2 4 3 2 1 3 4 1 2 1 3 Black Red CN3A Blue Red CN2A LED1 LED2 CN27 SWE CN90 CN105 CN2M Blue ON OFF SW3 SW2 SW1 1 2 4 3 CN4F TH21 t A FS...

Page 17: ...WE I B Connector emergency opera tion F01 Fuse AC 250V 6 3A CN105 Connector IT terminal SW11 I B Switch 1s digit address set ZNR01 02 Varistor CN2A Connector 0 10V Analog in put SW12 I B Switch 10ths digit address set DSA Arrester FS Float switch SW14 I B Switch BRANCH No X01 Aux relay TH21 Thermistor inlet air temp de tection SWA I B Switch for static pressure se lection X10 Aux relay TH22 Thermi...

Page 18: ...H23 B Gas pipe C Liquid pipe D Brazed connections E Strainer 100 mesh F Linear expansion valve G Liquid pipe thermistor TH22 H Heat exchanger I Room temperature thermistor TH21 Capacity PEFY P20 25 32 40 50VMA L E PEFY P63 71 80 100 125 140VMA L E Gas pipe ø12 7 1 2 ø15 88 5 8 Liquid pipe ø6 35 1 4 ø9 52 3 8 H I F E E C G A D B ...

Page 19: ...ure the resistance between terminals with a tester Refer to the next page for details Normal Abnormal 4 3kΩ 9 6kΩ Open or short Refer to the thermistor characteristic graph below Low temperature thermistor Room temperature thermistor TH21 Liquid pipe thermistor TH22 Gas pipe thermistor TH23 Drain sensor DS Thermistor R0 15 kΩ 3 Multiplier of B 3480 kΩ 2 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 2kΩ 30...

Page 20: ...hanges in the following order When the valve closes 1 2 3 4 1 When the valve opens 4 3 2 1 4 When the valve position remains the same all output signals will be OFF If any output signal is missing or if the signal remains ON the motor vibrates and makes clicking noise A Brown F White B Red G Control board C Blue H Connection CN60 D Orange I Drive circuit E Yellow J Linear expansion valve Phase num...

Page 21: ...ia Remedy Circuit failure on the microcomputer Disconnect the connectors on the control board and connect LEDs to test the cir cuit as shown below Pulse signals are output for 10 seconds when the main power is turned on If there are LEDs that do not light up at all or remain lit after the pulses are turned off there is a problem with the driving circuit Replace the in door control board if driving...

Page 22: ...ormally the LEV is fully closed while the unit is in the FAN mode If the valve is leaky liquid pipe thermistor reading will be lower than normal If it is significantly lower than the inlet temperature on the remote controller valve closure failure is suspected If the amount of leakage is insignificant replacement of LEV is unnec essary unless it is causing a problem Misconnections of connectors or...

Page 23: ...sition thermistor signal Get the motor to make a full rotation or more and measure the voltage at the test point VFG same with the voltage between fan connector 7 and 4 Is the fan motor connector CNMF fully inserted Is the voltage within the normal range Replace the motor Are 0VDC and 15VDC displayed alternately Check the power supply Measure the voltage at the indoor control board 310 340VDC same...

Page 24: ...ite address setting is required for the indoor units to run 2 Address settings vary in different systems Refer to the section on address setting in the outdoor unit installation manual 3 Address is set with a combination of SW12 10 s digit and SW11 1 s digit To set the address to 3 set SW12 to 0 and SW11 to 3 To set the address to 25 set SW 12 to 2 and SW 11 to 5 A Indoor unit control board B Fact...

Page 25: ...rminal A CN44 Thermistor liquid gas tempera ture CN4F Float thermistor CN20 Thermistor Inlet temperature CNMF Fan motor output 1 4 310 340 VDC 5 4 15 VDC 6 4 0 6 5 VDC 7 4 Stop 0 or 15 VDC Run 7 5 VDC 0 15 pulse CNP Drain up mechanism output 200VAC 1 VFG Voltage on the side of PC51 and C25 Same with the voltage between 7 and 4 of CNMF VCC Voltage between the C25 pins 15 VDC Same with the voltage b...

Page 26: ...life 2500 hr 100 hr 4 Outdoor air intake Enabled Disabled 5 Remote display Thermo ON signal Fan output 6 Humidifier operation During heating mode During heating operation 7 Fan speed Low Very low 8 Fan speed at heating Thermo OFF Preset fan speed Follows the setting of SW1 7 9 Auto restart after power failure Enabled Disabled 10 Power start stop Enabled Disabled Factory setting Switch position Fun...

Page 27: ... to a stop remote controller off There is no need to power cycle the unit 4 Power voltage setting 1 SW5 1 Indoor control board Dipswitch settings must be operated with the main power turned OFF Factory setting Please see the WIRING LABEL on the control box Factory setting Please see the WIRING LABEL on the control box Set SW5 to 240V side when the power supply is 240 volts When the power supply is...

Page 28: ...A requires address setting 1 Indoor control board Address settings must be made while the unit is stopped 7 Connection No setting 1 SW14 Rotary switch This switch is used when the unit connected to an R2 series of outdoor unit 1 Indoor control board Note Changes to the dipswitches SW11 SW12 SW14 and SW15 must be made while the unit is stopped and the remote controller is OFF All models Factory set...

Page 29: ...4 HWE0812B GB VIII Disassembly Procedure 1 Disassembly Procedure 1 Control box Exercise caution when removing heavy parts 1 Removing the control box cover 1 Remove the three fixing screws on the cover A to re move it Fig 1 Fig 2 A ...

Page 30: ... 2 Thermistor Intake air Exercise caution when removing heavy parts 1 Remove the control box cover according to the procedure in section 1 2 Remove the thermistor 1 Pull out the thermistor holder B and thermistor C on the control box Fig 3 B C ...

Page 31: ...e bottom plate 1 Push down the tab on the filter and pull out the filter in the direction of the arrow 1 2 Remove the fixing screws on the bottom plate D E to remove it Fig 4 2 Removing the drainpan 1 Pull out the drain pan in the direction of the arrow 2 Fig 5 Note Drain the water out of the drain pan before removing it D E ...

Page 32: ...e drain pan according to the procedure in sec tion 1 2 Removing the Heat exchanger cover 1 Remove the four fixing screws on the heat exchanger cov er F to remove it Fig 6 3 Removing the thermistor 1 Remove the thermistor G from the thermistor holder H on the copper tube Thermistor size Liquid pipe ø8mm Gas pipe ø6mm Fig 7 F HEX G H ...

Page 33: ...plate J to re move it Fig 8 a Tab 2 Removing the fan casing bottom half 1 Squeeze the tabs on the fan casing to remove it in the di rection of arrow 2 Fig 9 3 Removing the motor cable 1 Remove the motor cable threw the rubber bush 4 Removing the fan motor and the Sirocco fan 1 Remove the two motor fixing screws to remove the motor and the Sirocco fan in the direction of arrow 3 Fig 10 2 Remove the...

Page 34: ...cording to the procedure in section 1 2 Remove the heat exchanger cover according to the proce dure in section 4 2 3 Removing the cover 1 Remove the five fixing screws on the cover K to remove it Fig 12 K Pipe support plate 4 Removing the Heat exchanger 1 Remove the fixing screws on the heat exchanger M to re move it Fig 13 K M ...

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Page 36: ...http Global MitsubishiElectric com HWE0812B New publication effective Sep 2012 Specifications subject to change without notice ...