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HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model Name]
PLFY-WP32VBM-E
PLFY-WP40VBM-E
PLFY-WP50VBM-E
Model name
indication
INDOOR UNIT
[Service Ref.]
PLFY-WP32VBM-E.UK
PLFY-WP40VBM-E.UK
PLFY-WP50VBM-E.UK
Notes:
• This manual describes ser-
vice data of the indoor units
only.
• RoHS compliant products
have <G> mark on the spec
name plate.
CONTENTS
1. SAFETY PRECAUTION .......................... 2
2. PARTS NAMES AND FUNCTIONS ........ 2
3. SPECIFICATIONS ................................... 7
4. 4-WAY AIR FLOW SYSTEM ................. 10
5. OUTLINES AND DIMENSIONS ............ 13
6. WIRING DIAGRAM ............................... 15
7. REFRIGERANT SYSTEM DIAGRAM ...... 16
8. TROUBLESHOOTING .......................... 17
9. SPECIAL FUNCTION ........................... 24
10. DISASSEMBLY PROCEDURE ............. 31
PARTS CATALOG (OCB586)
April 2015
No. OCH586
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Related Manuals for Mitsubishi Electric PLFY-WP32VBM-E
Summary of Contents for Mitsubishi Electric PLFY-WP32VBM-E
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Page 1: Table Of Contents
HEAT PUMP AIR CONDITIONERS April 2015 No. OCH586 TECHNICAL & SERVICE MANUAL Indoor unit [Model Name] [Service Ref.] Notes: PLFY-WP32VBM-E.UK • This manual describes ser- PLFY-WP32VBM-E vice data of the indoor units only. PLFY-WP40VBM-E.UK • RoHS compliant products PLFY-WP40VBM-E have <G> mark on the spec name plate. -
Page 2: Safety Precaution
SAFETY PRECAUTION Precations for handling units for use with water CAUTION Do not use the existing water piping. Only use water. Store the piping materials indoors, and keep both ends of Only use clean water as a refrigerant. The use of water the pipes sealed until immediately before installation. -
Page 3: Wireless Remote Controller
2-2. WIRELESS REMOTE CONTROLLER CHECK TEST RUN display CHECK and TEST RUN display indicate that the unit is being checked or test-run. display MODEL SELECT Blinks when model is selected. display Lights up while the signal is transmitted to the indoor unit when the button is pressed. display SET TEMP. - Page 4 2-3. WIRED REMOTE CONTROLLER <PAR-30MAA><PAR-31MAA> Wired remote controller function The functions which can be used are restricted according to each model. : Supported : Unsupported Function PAR-30MAA/PAR-31MAA PAR-21MAA Body Product size H × W × D (mm) 120 × 120 × 19 120 ×...
- Page 5 Room Set temp. Cool Auto Mode Temp. The main display can be displayed in two different modes: "Full" and "Basic". The initial setting is "Full". To switch to the "Basic" mode, change the setting on the Main display setting. <Full mode> <Basic mode>...
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Page 6: Operation Section
2-4. WIRED REMOTE CONTROLLER <PAR-21MAA> “Sensor” indication Display Section Displays when the remote controller sensor is used. Day-of-Week For the purposes of explanation, Shows the current day of the week. all parts of the display are shown. During actual operation, only Time/Timer Display the relevant items will be lit. -
Page 7: Specifications
SPECIFICATIONS 3-1. SPECIFICATIONS Service Ref. PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK Power source 1-Phase 220–240 V, 50/60 Hz Cooling capacity (Nominal) kcal/h 3,100 3,100 3,100 12,300 12,300 12,300 BTU/h Power input 0.04 0.04 0.05 Current input 0.35 0.35 0.45 Heating capacity (Nominal) kcal/h... -
Page 8: Sound Level
3-2. ELECTRICAL PARTS SPECIFICATIONS Service Ref. PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK Symbol Parts name Room temperature TH21 Resistance 0:/15 k", 10:/9.6 k", 20:/6.3 k", 25:/5.4 k", 30:/4.3 k", 40:/3.0 k" detection thermistor Pipe temperature detection TH22 Resistance 0:/15 k", 10:/9.6 k", 20:/6.3 k", 25:/5.4 k", 30:/4.3 k", 40:/3.0 k"... - Page 9 3-4. NC CURVES PLFY-WP32VBM-E.UK PLFY-WP50VBM-E.UK PLFY-WP40VBM-E.UK External static pressure : 0Pa External static pressure : 0Pa Power source : 220,230,240V, 50Hz / 220V, 60Hz Power source : 220,230,240V, 50Hz / 220V, 60Hz High 50/60Hz Middle2 50/60Hz High 50/60Hz Middle2 50/60Hz...
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Page 10: Way Air Flow System
4-WAY AIR FLOW SYSTEM 4-1. PLACEMENT OF THE AIR OUTLETS • For this grille, the blowout direction comes in 11 patterns. Also, by setting the remote controller to the appropriate settings, you can adjust the airflow and speed. Select the settings from Table1 according to the location in which you want to install the unit. - Page 11 4-2. BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required. • A fresh air intake hole for the optional multi function casement can also be made. Note: The figures marked with * in the drawing below represent the dimensions of the main unit excluding those of the optional multi function casement.
- Page 12 4-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS PLFY-P32/40/50VBM-E.UK Multi function casement + Standard filter Multi function casement + High efficiency filter −50 −50 2 - inlet 2 - inlet −100 −100 −150 −150 1 - inlet 1 - inlet −200 −200 Airflow rate [m...
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Page 13: Outlines And Dimensions
OUTLINES AND DIMENSIONS PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK <Standard Panel> Unit: mm Ceiling hole 860~910 20~45 20~45 Detail connecting of Branch duct(Both aspects) Fresh air Suspension bolt pitch intake hole 20~45 Cut out hole 100 130 (7.5) Indoor unit/Outdoor unit connecting terminal block... - Page 14 PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK <Auto Descending Panel> Unit: mm Ceiling hole 20~45 860~910 20~45 Detail connecting of Branch duct(Both aspects) Fresh air intake hole Fresh air intake hole 20~45 Suspension bolt pitch Cut out hole (Multi-functional casement) Main unit Multi-functional casement 100 130 (7.5)
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Page 15: Wiring Diagram
WIRING DIAGRAM PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK LEGEND SYMBOL NAME SYMBOL NAME SYMBOL NAME I.B. INDOOR CONTROLLER BOARD DRAIN PUMP ADDRESS BOARD A.B. CN27 CONNECTOR DAMPER DRAIN FLOAT SWITCH SWITCH CEILING HEIGHT SELECTOR CN32 REMOTE SWITCH FAN MOTOR DISCHARGE OUTLET NUMBER CENTRALLY CONTROL... -
Page 16: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK Pipe temperature detection thermistor/ from HBC unit TH22 Water inlet screw connection Manual air purge valve Pipe temperature detection thermistor/ to HBC unit TH23 Water outlet screw connection Heat exchanger Room temparature detection thermistor TH21... -
Page 17: Troubleshooting
TROUBLESHOOTING 8-1. HOW TO CHECK THE PARTS PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK Parts name Check points Room temp. detection Disconnect the connector then measure the resistance with a tester. thermistor (TH21) (At the ambient temperature of 10 to 30:) Pipe temp. detection... - Page 18 8-1-1. Thermistor <Thermistor characteristic graph> < Thermistor for lower temperature > Thermistor for Room temperature detection thermistor (TH21) lower temperature Pipe temperature detection thermistor/from HBC unit (TH22) Pipe temperature detection thermistor/to HBC unit (TH23) Thermistor R =15 kΩ ± 3% Fixed number of B=3480 ±...
- Page 19 The black square (■) indicates a switch position. 8-2. FUNCTION OF DIP SWITCH Operation by switch Effective Switch Pole Function Remarks timing Thermistor <Room temperature Built-in remote controller Indoor unit Address board detection> position Filter clogging detection <Initial setting> Provided Not provided Filter cleaning 2,500 hr...
- Page 20 Effective Switch Pole Operation by switch Remarks timing Ceiling height can be changed depends on Address board SWB setting. <Initial setting> (High ceiling) PLFY-WP32/40/50VBM-E Ceiling 1–3 (Standard) height Silent Standard High ceiling (Silent) selector 4 direction 2.5m 2.7m 3.5m 3 direction 2.7m 3.0m 3.5m...
- Page 21 Effective Switch Pole Operation by switch Remarks timing <Initial setting> • To operate each indoor unit by each remote controller when installed 2 indoor units or more are near, Pair No. setting is necessary. Pattern A 1 Pair No. setting is available with the 4 patterns (Setting patters A to D). 2 Make setting for J41, J42 of indoor controller board and the Pair No.
- Page 22 8-3. TEST POINT DIAGRAM 8-3-1. Indoor controller board PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK CN6Y i-See sensor motor output 12 V DC pulse output CN3A CN4Y Connect to the terminal block (TB15) i-See sensor (MA-Remote controller connecting wire) 1–3: 8.7–13 V DC (Pin1 (+))
- Page 23 8-3-2. Address board PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK Ceiling height Discharge outlet Function setting selector number selector SW12 SW11 SW14 Address setting Address setting Branch No. Option selector 10s digit 1s digit OCH586...
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Page 24: Special Function
SPECIAL FUNCTION 9-1. HOW TO PERFORM THE UP/DOWN OPERATION OF THE AIR INTAKE GRILLE 9-1-1. Setting up the lowering distance of air intake grille Unit You can set up 8 different stages of lowering distance for Decorative the air intake grille according to the set up location if desired. panel Note that as an initial setting, the decorative panel will automatically stop at 1.6 m from the ceiling level. - Page 25 9-1-3. How to perform the up/down operation using wired remote controller <PAR-30MAA><PAR-31MAA> Maintenance menu Select "Maintenance" from the Main menu, and press the button. Auto descending panel Manual vane angle Select "Auto descending panel" with the F1 or F2 button, and press the button.
- Page 26 9-1-4. How to perform the up/down operation using wired remote controller (PAR-21MAA) ■ General Operation Raise or lower all the air intake grilles managed by the remote controller at the same time. Install the remote controller in a place where you can observe all the air-conditioners. Otherwise, the lowering grille may make contact with something and cause damage to it.
- Page 27 ■ Up/down operation with the individual specified air-conditioner (when used in combination with Mr. SLIM model) Raise or lower the air intake grille of the specific air-conditioner that you select from all that are managed by that remote controller. 1) Ensure that the air-conditioner is not running. Ensure that the air-conditioner is not running.
- Page 28 9-2. OPERATION (AUTO DESCENDING PANEL: PLP-6BAJ) (1) Normal operation 1 UP/DOWN Wire 1b Air intake grille is raised/lowered by UP/DOWN UP/DOWN commands of UP and DOWN. Machine 2 Machine 1 Air intake grille does not move under the state of no-load detection or obstacle detection. Air intake grille stops automatically at the set lowering distance from the ceiling level.
- Page 29 9-3. ELECTRICAL CIRCUIT (Controller board and wiring diagram (Panel)) 9-3-1. DIP SW 22 type SW22 Panel Indoor unit (WHT) LS21 CN3G CN90 (WHT) (BLK) CN2G (BLK) CN3G (BLK) FUSE CN22 (BLU) CN2F (BLK) CNAC (WHT) CN2E LS21 (RED) CN2C CN2B (WHT) GRN/YLW (WHT)
- Page 30 9-3-3. Check point of trouble <LED (SW22 type) /LED2 (SW2 type) display> Turn OFF : No power supply Blink : Storage detection switch ON (short) One blink : Storage detection switch OFF (open) Two blinks : Tension detection switch OFF (open) <controller board>...
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Page 31: Disassembly Procedure
DISASSEMBLY PROCEDURE PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK Be careful when removing heavy parts. OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Filter 1. Removing the air intake grille Figure 1 (1) Slide the knob of air intake grille toward the arrow 1 to open the air intake grille. - Page 32 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Coil plate Photo 3 6. Removing the fan and fan motor (MF) (1) Remove the electrical box. (See Photo 2) (2) Remove the bell mouth (3 screws). (See Photo 2) (3) Remove the turbo fan nut. (4) Pull out the turbo fan.
- Page 33 OPERATING PROCEDURE PHOTOS Photo 8 10 Removing the drain pump (DP) and float switch (FS) (1) Remove the drain pan. (See Photo 6) (2) Cut the hose band and remove the hose. (3) Remove the drain pump assembly (3 screws and 2 hooks). Float switch (4) Remove the drain pump (3 screws).
- Page 34 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN New publication, effective Apr. 2015 cCopyright 2015 MITSUBISHI ELECTRIC CORPORATION Specifications are subject to change without notice. Distributed in Apr. 2015 No. OCH586 Made in Japan...