Mitsubishi Electric CITY MULTI PFFY-WP20VLRMM-E Technical & Service Manual
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Also See for CITY MULTI PFFY-WP20VLRMM-E:
- Installation manual (140 pages) ,
- Operation manual (102 pages) ,
- Operation manual (100 pages)
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Summary of Contents for Mitsubishi Electric CITY MULTI PFFY-WP20VLRMM-E
- Page 1 Air-Conditioners 2013 TECHNICAL & SERVICE MANUAL PFFY-WP20VLRMM-E Models PFFY-WP25VLRMM-E PFFY-WP32VLRMM-E PFFY-WP40VLRMM-E PFFY-WP50VLRMM-E...
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Page 2: Safety Precautions
It may also be in violation of applicable laws. Do not make any modifications or alterations to the unit. MITSUBISHI ELECTRIC CORPORATION cannot be held Consult your dealer for repair. responsible for malfunctions or accidents resulting from the Improper repair may result in water leakage, electric shock, use of the wrong type of refrigerant. - Page 3 Forced operation of the pressure switch or the temperature switch by defeating the safety features for these devices, or the use of accessories other than the ones that are recom- mended by Mitsubishi Electric may result in smoke, fire, or explosion. Consult your dealer for proper disposal method.
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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 ......................... 7 VI Refrigerant System Diagram [1] Refrigerant system diagram...................... - Page 5 HWE12100...
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Page 6: I Features [1] Features
[ I Features ] I Features [1] Features Model Cooling capacity/Heating capacity PFFY-WP20VLRMM-E 2.2/2.5 PFFY-WP25VLRMM-E 2.8/3.2 PFFY-WP32VLRMM-E 3.6/4.0 PFFY-WP40VLRMM-E 4.5/5.0 PFFY-WP50VLRMM-E 5.6/6.3 HWE12100 - 1 -... -
Page 7: Components And Functions
[ II Components and Functions ] II Components and Functions [1] Components and Functions 1. Indoor (Main) Unit HWE12100 - 2 -... -
Page 8: Specfications
[ III Specfications ] III Specfications [1] Specifications 1. Specfications Model PFFY- PFFY- PFFY- WP20VLRMM-E WP25VLRMM-E WP32VLRMM-E Power supply Voltage 220-240 Frequency 50/60 Cooling capacity Heating capacity Power consumption Cooling 0.04 0.04 0.05 Heating 0.04 0.04 0.05 Current consump- Cooling 0.35 0.35 0.47... - Page 9 [ III Specfications ] Model PFFY-WP40VLRMM-E PFFY-WP50VLRMM-E Power supply Voltage 220-240 Frequency 50/60 Cooling capacity Heating capacity Power consumption Cooling 0.05 0.07 Heating 0.05 0.07 Current consump- Cooling 0.47 0.65 tion Heating 0.47 0.65 External finish (Munsel No.) Galvanized steel plate Dimensions Height Width...
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Page 10: Electrical Component Specifications
[ III Specfications ] 2. Electrical component specifications Component Sym- PFFY-WP20VLRMM-E PFFY-WP25VLRMM-E PFFY-WP32VLRMM-E Room temperature 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 thermistor Water inlet pipe 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 11: Outlines And Dimensions
[ IV Outlines and Dimensions ] IV Outlines and Dimensions [1] Outlines and Dimensions 1. PFFY-WP20, 25, 32, 40, 50VLRMM-E HWE12100 - 6 -... -
Page 12: Wiring Diagram
[ V Wiring Diagram ] V Wiring Diagram [1] Wiring Diagram 1. PFFY-WP20,25,32,40,50VLRMM-E HWE12100 - 7 -... -
Page 13: Refrigerant System Diagram
[ VI Refrigerant System Diagram ] VI Refrigerant System Diagram [1] Refrigerant system diagram Water outlet thermistor TH23 Water outlet Water inlet Screw connections Water inlet thermistor TH22 Heat exchanger Manual air purge valve Room temperature thermistor TH21 Capacity PFFY-WP20, 25, 32, 40, 50VLRMM-E Water outlet Rc3/4 screw Water inlet... -
Page 14: Troubleshooting
[ VII Troubleshooting ] VII Troubleshooting [1] Troubleshooting 1. Check methods 1. Component and check points (1) Thermistor ŒRoom temperature thermistor (TH21) ŒWater inlet thermistor (TH22) ŒWater outlet thermistor (TH23) Disconnect the connector and measure the resistance between terminals with a tester. (Ambient temperature 10°C - 30°C) Normal Abnormal... -
Page 15: Dc Fan Motor (Fan Motor/Indoor Control Board)
[ VII Troubleshooting ] 2. DC fan motor (fan motor/indoor control board) 1. CAUTION ŒA high voltage is applied to the connector for connection to the fan motor (CNMF). ŒDo not unplug the connector CNMF with the unit energized to avoid damage to the indoor control board and fan motor. 2. -
Page 16: 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). ŒAddress setting is not required when the unit remote controller is used. -
Page 17: Voltage Test Points On The Control Board
[ VII Troubleshooting ] 4. Voltage test points on the control board 1. PFFY-P20, 25, 32, 40, 50, 63VLRMM-E Fuse Fuse(AC 250V 6.3A) Fuse Power supply voltage (220 - 240VAC) CN2M For M-NET transmission cable connection (24 - 30VDC) Emergency operation Capacity setting Function setting CN42... -
Page 18: Dipswitch Setting (Factory Setting)
[ VII Troubleshooting ] 5. Dipswitch setting (Factory setting) 1. Function setting (1) SW1 Switch position Function Switch setting Active Thermistor (Intake air ther- Built-in thermistor on the remote Indoor unit mistor) controller Filter clogging detection Available Unavailable Filter life 2500 hr 100 hr Outdoor air intake... - Page 19 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. PFFY-WP20VLRMM-E PFFY-WP25VLRMM-E PFFY-WP32VLRMM-E PFFY-WP40VLRMM-E PFFY-WP50VLRMM-E 3. Model setting (1) SW4 1) Indoor control board Dipswitch settings must be made while the unit is stopped.
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Page 20: Instructions For Debris Removal Operation
[ VII Troubleshooting ] 5. 1's and 10's digits (1) SW11, SW12 (Rotary switch) The use of a network remote controller (PAR-F27MEA) requires address setting. 1) Address board Address settings must be made while the unit is stopped. Factory setting 6. -
Page 21: 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 fixing screws (two) on the cover (A) to re- move it. HWE12100 - 16 -... -
Page 22: Thermistor (Intake Air)
[ VIII Disassembly Procedure ] 2. Thermistor (Intake air) Exercise caution when removing heavy parts. 1. Removing the thermistor (1) Pull out the thermistor holder (B) and thermistor (C) under the control box. HWE12100 - 17 -... -
Page 23: Drainpan
[ VIII Disassembly Procedure ] 3. Drainpan Exercise caution when removing heavy parts. 1. Removing the casing ass'y (1) Remove the fixing screws(nine) of the plate(D) and remove the plate. 2. Remove the drainpan cover 3. Remove the drainpan (1) Remove the fixing screw of the both side frame. HWE12100 - 18 -... - Page 24 [ VIII Disassembly Procedure ] (2) Remove the magnet plate (G),(H),(I) of the both frame,re- move the tube (J). (3) Slide the drainpan in the direction of the arrow 1. HWE12100 - 19 -...
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Page 25: Thermistor (Water Inlet) (Water Outlet)
[ VIII Disassembly Procedure ] 4. Thermistor (Water inlet) (Water outlet) Exercise caution when removing heavy parts. 1. Removing the thermistor (1) Remove the fixing screws (seven), remove the cover (K) and (L) and drainpan cover (E). (2) Remove the thermistor (water inlet)(M) and thermis- tor(water outlet)(N). -
Page 26: Fan And Fan Motor
[ VIII Disassembly Procedure ] 5. Fan and fan motor Exercise caution when removing heavy parts. 1. Remove the plate(D) with procedure 3-1. 2. Remove the drainpan with procedure 3-2,3. 3. Sliding the fan section (1) Remove the fixing screws(two). (2) Slide the fan section in direction of the arrow 2. -
Page 27: Heat Exchanger
[ VIII Disassembly Procedure ] 6. Heat exchanger Exercise caution when removing heavy parts. 1. Remove the plate(D) with procedure 3-1. 2. Removng the air diffuser ass'y (1) Remove the fixing screws(eight) of the air diffuser ass'y(P) and remove it. 3. - Page 28 May 2013 HWE12100 New publication, effective May 2013 Printed in Japan Specifications subject to change without notice...