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[

VII

Troubleshooting ]

- 17 -

HWE1114A

GB

2. Capacity

code

setting

(1) SW2

1) Indoor control board

Dipswitch settings must be made while the unit is stopped.
Factory setting
The switches are set to correspond to the unit capacity.

3. Model

setting

(1) SW4

1) Indoor control board

Dipswitch settings must be made while the unit is stopped.

Note:
Changes made to the dipswitches SW1, SW2, and SW3 will become effective when the unit comes 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

Factory setting

Set SW5 to 240V side when the power supply is 240 volts.
When the power supply is 220 and 230 volts, set SW5 to 220V side.

PEFY-WP25VMA-E

PEFY-WP20VMA-E

PEFY-WP32VMA-E

PEFY-WP40VMA-E

PEFY-WP50VMA-E

220V

(208V)

240V

(230V)

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Содержание City Multi PEFY-WP20VMA-E

Страница 1: ...AIR CONDITIONERS TECHNICAL SERVICE MANUAL Model name PEFY WP20VMA E PEFY WP25VMA E PEFY WP32VMA E PEFY WP40VMA E PEFY WP50VMA E 2012 ...

Страница 2: ... ޓޓ ...

Страница 3: ... result in explosion or fire during use during repair or at the time of disposal of the unit It may also be in violation of applicable laws MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant Ask your dealer or a qualified technician to install the unit Improper installation by the user may result in water...

Страница 4: ...onsult your dealer or a qualified technician when moving or reinstalling the unit Improper installation may result in water leakage electric shock or fire After completing the service work check for water leakage ITo avoid water damage to the furnishings check for water leak at the completion of all work Do not try to defeat the safety features of the unit Forced operation of the pressure switch o...

Страница 5: ...ram 8 VI Refrigerant System Diagram 1 Refrigerant system diagram 10 VII Troubleshooting 1 Troubleshooting 11 1 Check methods 11 2 DC fan motor fan motor indoor control board 13 3 Address switch setting 14 4 Voltage test points on the control board 15 5 Dipswitch setting Factory setting 16 VIII Disassembly Procedure 1 Disassembly Procedure 19 1 Control box 19 2 Thermistor Intake air 20 3 Drainpan 2...

Страница 6: ...HWE1114A GB ...

Страница 7: ... Features 1 HWE1114A GB I Features 1 Features Model Cooling capacity Heating capacity kW PEFY WP20VMA E 2 2 2 5 PEFY WP25VMA E 2 8 3 2 PEFY WP32VMA E 3 6 4 0 PEFY WP40VMA E 4 5 5 0 PEFY WP50VMA E 5 6 6 3 ...

Страница 8: ...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...

Страница 9: ...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 ...

Страница 10: ...mm 700 900 Depth mm 732 Net weight kg 21 26 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 1 Airflow rate Low Mid High m3 min 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 Diameter of water pipe Inlet in Rc3 4 screw Outlet in Rc3 4 screw Drain pipe dimensions mm in O D 32 1 1 4 O...

Страница 11: ...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 14 5 18 0 21 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 Diameter of water pipe Inlet in Rc3 4 screw Outlet in Rc3 4 screw Drain pipe dimensions mm in O D 32 1 1 4 Operating noise Low Mid High 35...

Страница 12: ...2 S 250V 20A Drain float switch DS Open short detection Initial contact resistance 500 m or less Component Sym bol PEFY WP25VMA E PEFY WP32VMA E PEFY WP40VMA E PEFY WP50VMA E Room temperature thermistor TH21 Resistance 0 C 15k 10 C 9 6k 20 C 6 3k 25 C 5 4k 30 C 4 3k 40 C 3 0k Water inlet pipe thermistor TH22 Resistance 0 C 15k 10 C 9 6k 20 C 6 3k 25 C 5 4k 30 C 4 3k 40 C 3 0k Water outlet pipe the...

Страница 13: ...taneous draining㧕 Drain pipe O D ø32 Suspension bolt hole 4 14 x 30 Slot 2 2 ø2 9 2 x E ø2 9 91 64 87 117 20 64 40 250 40 D Duct 210 18 G 21 57 10 A B Suspension bolt pitch C 23 643 Suspension bolt pitch 178 Duct 23 10 238 32 700 732 356 100 41 217 100 30 100 x E 1 F 58 15 Rc3 4 screw ԙWater pipe To HBC unit ԘWater pipe From HBC unit 7 Model A 660 800 1200 700 754 900 954 860 9 E 11 D 1060 C 1100 ...

Страница 14: ...14 SW12 SW11 SW4 SWA ACL SW1 SW2 SW3 CNXC1 X01 X10 CNXA1 CNXB1 CNMF CNXC2 CN2A CN2M CNXB2 CNXA2 CN51 CN4F CN41 CN105 CN90 CN20 SWE CN52 CN32 CN3A TB5 LED2 LED1 DC280 340V Rectifier circuit U U POWER SUPPLY AC220 240V 50 60Hz TO NEXT INDOOR UNIT PULL BOX BREAKER 16A FUSE 16A N L TB15 M2 2 TB2 M1 1 S SHIELD M MS 3 1 1 1 1 1 1 1 2 2 7 5 2 5 3 3 4 4 5 6 4 3 2 2 2 1 3 1 3 2 3 2 3 1 2 1 1 3 4 3 1 4 5 4 ...

Страница 15: ...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 Thermistor pi...

Страница 16: ...m diagram A Water outlet thermistor TH23 B Water outlet C Water inlet D Screw connections E Water inlet thermistor TH22 F Heat exchanger G Manual air purge valve H Room temperature thermistor TH21 F H C A E D B G Capacity PEFY WP20 25 32 40 50VMA E Water outlet Rc3 4 screw Water inlet Rc3 4 screw ...

Страница 17: ...fan motor fan motor indoor control board 3 Drain up mechanism Measure the resistance between the terminals with a tester coil temperature 20 C Normal Abnormal 4 3k 9 6k Open or short Refer to the thermistor characteristic graph below Low temperature thermistor Room temperature thermistor TH21 Water inlet pipe thermistor TH22 Water outlet thermistor TH23 Drain sensor DS Thermistor R0 15 k 3 Multipl...

Страница 18: ...itch CN4F Disconnect the connector and measure the resistance between terminals with a volt meter A Moving part B Switch C Magnet Position of the moving part Normal Abnormal Up Short any position but short Down Open any position but open 1 2 3 4 A A B C ...

Страница 19: ...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...

Страница 20: ...ller is used On site 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 con...

Страница 21: ...rmistor water inlet water outlet temperature 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 betwe...

Страница 22: ...le Unavailable 3 Filter 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 set...

Страница 23: ...Changes made to the dipswitches SW1 SW2 and SW3 will become effective when the unit comes 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 Factory setting Set SW5 to 240V side when the power supply is 240 volts When the power supply is 220 ...

Страница 24: ...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...

Страница 25: ...9 HWE1114A 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 ...

Страница 26: ... 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 ...

Страница 27: ...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 ...

Страница 28: ...e drain pan according to the procedure in sec tion 3 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 Water inlet ø8mm Water outlet ø6mm Fig 7 F HEX G H ...

Страница 29: ...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...

Страница 30: ...cording to the procedure in section 3 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 ...

Страница 31: ... ޓޓ ...

Страница 32: ...HWE1114A New publication effective Mar 2012 Specifications subject to change without notice ...

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