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Summary of Contents for Mitsubishi Electric CITY MULTI PEFY-W10VMS-A
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Page 2: Safety Precautions
Consult your dealer for repair. It may also be in violation of applicable laws. MITSUBISHI ELECTRIC CORPORATION cannot be held Improper repair may result in water leakage, electric shock, responsible for malfunctions or accidents resulting from the or fire. - Page 3 Mitsubishi Electric may result in smoke, fire, or Infiltration of any other types of refrigerant or air into the unit 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..........................3 1.Specfications .......................... 3 2.Electrical component specifications..................5 IV Outlines and Dimensions [1] Outlines and Dimensions......................6 V Wiring Diagram [1] Wiring Diagram ........................10 VI Refrigerant System Diagram [1] Refrigerant system diagram.................... - Page 5 HWE18180...
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Page 6: Features
[ I Features ] I Features [1] Features Model Cooling capacity/Heating capacity PEFY-W10VMS-A 1.2/1.4 PEFY-W15VMS-A 1.7/1.9 PEFY-W20VMS-A 2.2/2.5 PEFY-W25VMS-A 2.8/3.2 PEFY-W32VMS-A 3.6/4.0 PEFY-W40VMS-A 4.5/5.0 PEFY-W50VMS-A 5.6/6.3 - 1 - HWE18180... -
Page 7: Components And Functions
[ II Components and Functions ] II Components and Functions [1] Components and Functions 1. Indoor (Main) Unit - 2 - HWE18180... -
Page 8: Specfications
[ III Specfications ] III Specfications [1] Specifications 1. Specfications Model PEFY- PEFY- PEFY- PEFY- W10VMS-A W15VMS-A W20VMS-A W25VMS-A Power supply Voltage 220-240 Frequency 50/60 Cooling capacity Heating capacity Power consumption Cooling 0.02 0.025 0.03 0.035 Heating 0.02 0.025 0.03 0.035 Current consumption Cooling... - Page 9 [ III Specfications ] Model PEFY-W32VMS-A PEFY-W40VMS-A PEFY-W50VMS-A Power supply Voltage 220-240 Frequency 50/60 Cooling capacity Heating capacity Power consumption Cooling 0.04 0.045 0.07 Heating 0.04 0.045 0.07 Current consumption Cooling 0.37 0.39 0.55 (220V) Heating 0.37 0.39 0.55 External finish (Munsel No.) Galvanized Dimensions Height...
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Page 10: Electrical Component Specifications
[ III Specfications ] 2. Electrical component specifications Component Sym- PEFY- PEFY- PEFY- PEFY- W10VMS-A W15VMS-A W20VMS-A W25VMS-A Room temperature TH21 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ thermistor Water inlet pipe therm- TH22 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ istor Water outlet pipe TH23... -
Page 11: Outlines And Dimensions
[ IV Outlines and Dimensions ] IV Outlines and Dimensions [1] Outlines and Dimensions 1. PEFY-W10, 15, 20, 25, 32, 40, 50VMS-A Unit: mm - 6 - HWE18180... - Page 12 [ IV Outlines and Dimensions ] Unit: mm - 7 - HWE18180...
- Page 13 [ IV Outlines and Dimensions ] 2. PEFY-W10, 15, 20, 25, 32, 40, 50VMS-A Drain lift up mechanism built-in specification Unit: mm - 8 - HWE18180...
- Page 14 [ IV Outlines and Dimensions ] Unit: mm - 9 - HWE18180...
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Page 15: Wiring Diagram
[ V Wiring Diagram ] V Wiring Diagram [1] Wiring Diagram 1. PEFY-W10, 15, 20, 25, 32, 40, 50VMS-A - 10 - HWE18180... -
Page 16: Refrigerant System Diagram
[ VI Refrigerant System Diagram ] VI Refrigerant System Diagram [1] Refrigerant system diagram Water outlet thermistor TH23 Water outlet Water inlet Joint connection (connected on site) Water inlet thermistor TH22 Pressure sensor (inner water) PS1 (G) Pressure sensor (outlet water) PS2 Flow control valve FCV Heat exchanger Manual air purge valve... -
Page 17: Troubleshooting
[ VII Troubleshooting ] VII Troubleshooting [1] Troubleshooting 1. Check methods 1. Component and check points (1) Thermistor Room temperature thermistor (TH21) Water inlet thermistor (TH22) Water outlet thermistor (TH23) Disconnect the connector and measure the resistance between terminals with a tester. (Ambient temperature 10°C - 30°C) Normal Abnormal... - Page 18 [ VII Troubleshooting ] 1) Summary of flow control valve (FCV) operation The FCV is operated by a stepping motor, which operates by receiving a pulse signal from the indoor control board. The FCV position changes in response to the pulse signal. Indoor control board and FCV connection Limit signal (Opening...
- Page 19 [ VII Troubleshooting ] 2) FCV operation Close Open Fully open valve (85 pulses) Fully close valve (770 pulses) No. of pulses Valve opening degree (4) Pressure sensor Pressure sensor (inner water) PS1 Pressure sensor (outlet water) PS2 1) Check that the pressure sensor is connected. 2) Check the pressure sensor wiring for breakage.
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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 (CNMF1). Do not unplug the connector CNMF1 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 source is turning off. Indoor unit control board Incase using network remote controller, address is set by rotary switches. (SW11,SW12) It is not necessary setting address in case of using unit remote controller. Indoor unit do not run without address setting in field. -
Page 22: Voltage Test Points On The Control Board
[ VII Troubleshooting ] 4. Voltage test points on the control board Fuse (AC 250V 6.3A) Power supply voltage (220 - 240VAC) CN2M For M-NET transmission cable connection (24 - 30VDC) Emergency operation Capacity setting Function setting Function setting CN32 Remote start/stop adapter CN3A For MA remote controller cable... -
Page 23: Setting Of Dip-Switch (At Delivery)
[ VII Troubleshooting ] 5. Setting of Dip-switch (at delivery) Models SW21 SW22 SWE PEFY- W10VMS-A 9 10 9 10 PEFY- W15VMS-A 9 10 9 10 PEFY- W20VMS-A 9 10 9 10 PEFY- W25VMS-A 9 10 9 10 PEFY- W32VMS-A 9 10 9 10 PEFY-... -
Page 24: Selecting The External Static Pressure
[ VII Troubleshooting ] (2) SW3 Switch position Function Switch setting Unit type Cooling only Heat pump 7. Selecting the external static pressure As the factory setting is for use under an external static pressure of 15 Pa, no switch operation is needed when using under the standard condition. -
Page 25: Setting Addresses
[ VII Troubleshooting ] 8. Setting addresses (Be sure to operate with the main power turned OFF.) There are two types of rotary switch setting available: setting addresses 1 to 9 and over 10, and setting branch numbers. 1) How to set addresses Example: If Address is “3”, remain SW12 (for over 10) at “0”, and match SW11 (for 1 to 9) with “3”. -
Page 26: Disassembly Procedure
[ VIII Disassembly Procedure ] VIII Disassembly Procedure [1] 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 - 21 - HWE18180... -
Page 27: 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) Pull out the thermistor holder (B) and thermistor (C) on the control box. -
Page 28: Drainpan
[ VIII Disassembly Procedure ] 3. Drainpan 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. (2) Remove the fixing screws on the bottom plate (D), (E) to remove it. -
Page 29: Thermistor (Water Inlet And Outlet)
[ VIII Disassembly Procedure ] 4. Thermistor (Water inlet and outlet) Exercise caution when removing heavy parts. 1. Remove the 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. -
Page 30: 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. (2) Remove the fixing screws on the bottom plate (J) to re- move it. -
Page 31: Bearing
[ VIII Disassembly Procedure ] 6. Bearing W40, W50 models only. 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.13 (2) Remove the two bearing retainer screws to remove the bearing. -
Page 32: Heat Exchanger (Pressure Sensor And Fcv)
[ VIII Disassembly Procedure ] 7. Heat exchanger (Pressure sensor and FCV) Exercise caution when removing heavy parts. 1. Remove the drain pan according to the procedure in section 2. Remove the heat exchanger cover according to the proce- dure in section 4 2. 3. - Page 33 [ VIII Disassembly Procedure ] 6. Removing the FCV (1) Remove the cover (U) of the FCV (V). (Fig. 19) Fig.19 (2) Remove the clips (W) on the inlet/outlet of the FCV. (Fig. 20) (3) Remove the inlet/outlet piping connecting the FCV. (Fig.
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