Related Manuals for Mitsubishi Electric PEFY-P20VMS-E
Summary of Contents for Mitsubishi Electric PEFY-P20VMS-E
- Page 1 2006 Air-Conditioners TECHNICAL & SERVICE MANUAL PEFY-P20VMS-E, PEFY-P40VMS-E Models PEFY-P25VMS-E, PEFY-P50VMS-E PEFY-P32VMS-E, PEFY-P63VMS-E For use with R410A, R407C, & R22...
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Page 2: Safety Precautions
Have all electrical work performed by an authorized electri- Only use accessories (i.e., air cleaners, humidifiers, electric cian according to the local regulations and the instructions heaters) recommended by Mitsubishi Electric. in this manual. Use a dedicated circuit. Insufficient power supply capacity or improper installation of the unit may result in malfunctions of the unit, electric shock, or fire. - Page 3 When installing the unit in a small space, take appropriate mended by Mitsubishi Electric may result in smoke, fire, or precautions to prevent leaked refrigerant from reaching the explosion.
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Page 4: Table Of Contents
CONTENTS I Features [1] Features............................ 1 II Components and Functions [1] Components and Functions...................... 2 III Specfications [1] Specifications..........................4 1.Specfications .......................... 4 2.Electrical component specifications..................6 IV Outlines and Dimensions [1] Outlines and Dimensions......................7 V Wiring Diagram [1] Wiring Diagram ......................... 8 VI Refrigerant System Diagram [1] Refrigerant system diagram.................... -
Page 6: Features
[ I Features ] I Features [1] Features Model Cooling capacity/Heating capacity PEFY-P20VMS-E 2.2/2.5 PEFY-P25VMS-E 2.8/3.2 PEFY-P32VMS-E 3.6/4.0 PEFY-P40VMS-E 4.5/5.0 PEFY-P50VMS-E 5.6/6.3 PEFY-P63VMS-E 7.1/8.0 - 1 -... -
Page 7: Components And Functions
[ II Components and Functions ] II Components and Functions [1] Components and Functions 1. Indoor (Main) Unit 2. Remote Controller [PAR-21MAA] Once the operation mode is selected, the unit will remain in the selected mode until changed. (1) Remote Controller Buttons [Set Temperature] Button [Vane Control] Button [Timer Menu] Button... - Page 8 [ II Components and Functions ] (2) Remote Controller Display Current time/Timer time Louver swing Centralized control indicator Ventilation Timer OFF indicator Filter sign Timer mode Sensor position Operation mode display: COOL, DRY, AUTO, Room temperature FAN, HEAT Function Lock indicator Vane setting Preset temperature Fan speed...
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Page 9: Specfications
[ III Specfications ] III Specfications [1] Specifications 1. Specfications Model PEFY-P20VMS-E PEFY-P25VMS-E PEFY-P32VMS-E Power supply Voltage 220-240 Frequency 50/60 Cooling capacity Heating capacity Power consumption Cooling 0.08/0.08 0.08/0.08 0.09/0.09 Heating 0.06/0.06 0.06/0.06 0.07/0.07 Current consumption Cooling 0.39/0.39 0.39/0.39 0.44/0.44 Heating 0.28/0.28... - Page 10 [ III Specfications ] Model PEFY-P40VMS-E PEFY-P50VMS-E PEFY-P63VMS-E Power supply Voltage 220-240 Frequency 50/60 Cooling capacity Heating capacity Power consumption Cooling 011/0.11 0.13/0.13 0.14/0.14 Heating 0.09/0.09 0.11/0.11 0.12/0.12 Current consumption Cooling 0.53/0.53 0.63/0.63 0.68/0.68 Heating 0.42/0.42 0.52/0.52 0.57/0.57 External finish (Munsel No.) Galvanized Dimensions Height...
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Page 11: Electrical Component Specifications
[ III Specfications ] 2. Electrical component specifications Component Sym- PEFY- PEFY- PEFY- PEFY- PEFY- PEFY- P20VMS-E P25VMS-E P32VMS-E P40VMS-E P50VMS-E P63VMS-E Room temperature ther- 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 mistor Liquid 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... -
Page 12: Outlines And Dimensions
[ IV Outlines and Dimensions ] IV Outlines and Dimensions [1] Outlines and Dimensions 1. PEFY-P20,25,32,40,50,63VMS-E Space required for service and maintenance. Provide an access door for maintenance at the bottom. Note 1 Use M10 suspension bolts. (not supplied) 2 Provide an access door for maintenance at the bottom. 3 The dimensions in the table are those of the PEFY-P20~50VMS-E models, which have 3 fans. -
Page 13: Wiring Diagram
[ V Wiring Diagram ] [1] Wiring Diagram V Wiring Diagram 1. PEFY-P20,25,32,40,50,63VMS-E - 8 -... - Page 14 [ V Wiring Diagram ] Table.1 SYMBOL EXPLANATION SYM- NAME SYM- NAME SYM- NAME I.B. Indoor control board CN32 Connector (Remote switch) Switch (function setting) (I.B.) A.B. Address board CN41 Connector (HA terminal-A) Connector (emergency opera- (I.B.) tion) Power supply terminal block CN51 Connector (Centralized con- Switch (function setting)
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Page 15: Refrigerant System Diagram
[ VI Refrigerant System Diagram ] [1] Refrigerant system diagram VI Refrigerant System Diagram Gas pipe thermistor TH23 Gas pipe Liquid pipe Brazed connections Strainer (#100 mesh) Linear expansion valve Liquid pipe thermistor TH22 Heat exchanger Room temperature thermistor TH21 Capacity PEFY-P20, 25, 32, 40VMS-E PEFY-P50VMS-E... -
Page 16: Troubleshooting
[ VII Troubleshooting ] VII Troubleshooting [1] Troubleshooting 1. Check methods 1. Component and check points (1) Thermistor Room temperature thermistor (TH21) Liquid pipe thermistor (TH22) Gas pipe thermistor (TH23) Disconnect the connector and measure the resistance between terminals with a tester. (Ambient temperature 10°C - 30°C) Normal Abnormal... - Page 17 [ VII Troubleshooting ] 1) Summary of linear expansion valve (LEV) operation The LEV is operated by a stepping motor, which operates by receiving a pulse signal from the indoor control board. The LEV position changes in response to the pulse signal. Indoor control board and LEV connection 12VDC Brown...
- Page 18 [ VII Troubleshooting ] 2) LEV operation Close Open Fully open valve (2000 pulses) No. of pulses Extra tightning (80 - 100 pulse) Valve opening degree When the power is turned on, a pulse signal of 2200 pulses is output (valve closure signal), to bring the valve to position A. When the valve is operating normally, it is free of vibration noise.
- Page 19 [ VII Troubleshooting ] Symptom Checking Criteria Remedy Valve closure fail- To check the LEV on the indoor unit, check the indoor unit liquid pipe temperature Replace the LEV if ure (leaky valve) that appears on the operation monitor on the outdoor unit's multi control board while the amount of leak- operating the indoor unit in question in the FAN mode and the other indoor units in age is great.
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Page 20: Dc Fan Motor (Fan Motor/Indoor Control Board)
[ VII Troubleshooting ] 2. DC fan motor (fan motor/indoor control board) 1. CAUTION A high voltage is applied to the connector for connection to the fan motor (CNMF). Do not unplug the connector CNMF with the unit energized to avoid damage to the indoor control board and fan motor. 2. -
Page 21: Address Switch Setting
[ VII Troubleshooting ] 3. Address switch setting Make sure that power to the unit is turned off. Indoor unit control board Factory setting (all models) 1. When using an ME remote controller, set the address with the rotary switches (SW11, SW12). Address setting is not required when the unit remote controller is used. -
Page 22: Voltage Test Points On The Control Board
[ VII Troubleshooting ] 4. Voltage test points on the control board 1. PEFY-P20, 25, 32, 40, 50, 63VMS-E Power supply voltage (220 - 240VAC) Fuse CN2M For M-NET transmission cable con- nection (24 - 30VDC) Emergency operation Capacity setting Function setting CN42 For address board connection... -
Page 23: Dipswitch Setting (Factory Setting)
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. PEFY-P20VMS-E PEFY-P25VMS-E PEFY-P32VMS-E PEFY-P40VMS-E PEFY-P50VMS-E PEFY-P63VMS-E - 18 -... - Page 24 [ VII Troubleshooting ] 3. Model setting (1) SW4 1) Indoor control board Dipswitch settings must be made while the unit is stopped. Factory setting Note: Changes made to the dipswitches SW1, SW2, and SW3 will become effective when the unit comes to a stop (remote controller off).
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Page 25: Disassembly Procedure
[ VIII Disassembly Procedure ] [1] Disassembly Procedure VIII Disassembly Procedure 1. Control box Exercise caution when removing heavy parts. 1. Removing the control box cover (1) Remove the two fixing screws on the cover (A) to remove Fig.1 Fig.2 - 20 -... -
Page 26: Thermistor (Intake Air)
[ VIII Disassembly Procedure ] 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) Remove the two fixing screws on the metal base (B) to re- move it. -
Page 27: Drainpan
[ VIII Disassembly Procedure ] 3. Drainpan Exercise caution when removing heavy parts. 1. Removing the cover (1) Remove the fixing screws on the cover (E) to remove it. Fig.5 2. Removing the drainpan (1) Pull out the drain pan in the direction of the arrow 1. Fig.6 Note Drain the water out of the drain pan before removing... -
Page 28: Thermistor (Gas Pipe) (Liquid Pipe)
[ VIII Disassembly Procedure ] 4. Thermistor (Gas pipe) (Liquid pipe) Exercise caution when removing heavy parts. 1. Remove the 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. -
Page 29: Fan And Fan Motor
[ VIII Disassembly Procedure ] 5. Fan and fan motor Exercise caution when removing heavy parts. 1. Removing the filter and the bottom plate (1) Push down the tab on the filter, and pull out the filter in the direction of the arrow 1. Fig.10 2. -
Page 30: Bearing
[ VIII Disassembly Procedure ] 6. Bearing Exercise caution when removing heavy parts. 1. Removeing the bearing (1) Remove the two fixing screws on the bearing cover (M) to remove it. Fig.14 (2) Remove the two bearing retainer screws to remove the bearing. -
Page 31: Heat Exchanger
[ VIII Disassembly Procedure ] 7. Heat exchanger Exercise caution when removing heavy parts. 1. Remove the drain pan according to the procedure in section [1]. 2. Remove the heat exchanger cover according to the proce- dure in section [4] 2. 3. - Page 32 Aug. 2006 HWE06020 New publication, effective Aug. 2006 Printed in Japan Specifications subject to change without notice...