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Air-Conditioners For Building Application
TECHNICAL & SERVICE MANUAL
Series PDFY
<Indoor unit>
PDFY-P20VM-A,PDFY-P63VM-A
Models
PDFY-P25VM-A,PDFY-P71VM-A
PDFY-P32VM-A,PDFY-P80VM-A
PDFY-P40VM-A,PDFY-P100VM-A
PDFY-P50VM-A,PDFY-P125VM-A
Ceiling Concealed Built-in
CONTENTS
SAFETY PRECAUTIONS ·························1
1. FEATURES············································3
2. PART NAMES AND FUNCTIONS ········4
3. SPECIFICATION ···································6
4. OUTLINES AND DIMENSIONS············8
5. WIRING DIAGRAM ·····························10
7. TROUBLE SHOOTING························13
8. DISASSEMBLY PROCEDURE ···········18
For use with the R407C & R22
2001
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Related Manuals for Mitsubishi Electric Series PDFY
Summary of Contents for Mitsubishi Electric Series PDFY
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Page 1: Table Of Contents
2001 Air-Conditioners For Building Application TECHNICAL & SERVICE MANUAL Ceiling Concealed Built-in Series PDFY <Indoor unit> PDFY-P20VM-A,PDFY-P63VM-A Models PDFY-P25VM-A,PDFY-P71VM-A PDFY-P32VM-A,PDFY-P80VM-A PDFY-P40VM-A,PDFY-P100VM-A PDFY-P50VM-A,PDFY-P125VM-A CONTENTS SAFETY PRECAUTIONS ·························1 1. FEATURES············································3 2. PART NAMES AND FUNCTIONS ········4 3. SPECIFICATION ···································6 4. OUTLINES AND DIMENSIONS············8 5. -
Page 2: Safety Precautions
- Improper installation by the user may result in water leakage, elec- by Mitsubishi Electric are used, fire or explosion may result. tric shock, or fire. • Install the air unit at a place that can withstand its weight. - Page 3 Precautions for devices that use R407C refrigerant Caution: • Do not use the existing refrigerant piping. - The old refrigerant and refrigerator oil in the existing piping con- tains a large amount of chlorine which may cause the refrigerator oil of the new unit to deteriorate. •...
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Page 4: Features
FEATURES Ceiling Concealed Built-in Series PDFY Indoor unit Cooling capacity/Heating capacity Models 2.2/ 2.5 PDFY -P20VM-A 2.8/ 3.2 PDFY -P25VM-A 3.6/ 4.0 PDFY -P32VM-A 4.5/ 5.0 PDFY -P40VM-A 5.6/ 6.3 PDFY -P50VM-A 7.1/ 8.0 PDFY -P63VM-A 8.0/ 9.0 PDFY -P71VM-A 9.0/ 10.0... -
Page 5: Part Names And Functions
PART NAMES AND FUNCTIONS Indoor (Main) Unit Air outlet Air inlet Remote controller [PAR-20MAA] Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button. Operation buttons CENTRALLY CONTROLLED 1Hr. ON OFF ˚C CLOCK CHECK FILTER... - Page 6 Display 1Hr. CENTRALLY CONTROLLED ON OFF ˚C CLOCK CHECK FILTER CHECK MODE ˚C TEST RUN STAND BY ERROR CODE FUNCTION NOT AVAILABLE DEFROST TEMP. ON/OFF I KL J Current time/Timer Centralized control Timer ON Abnormality occurs Operation mode: COOL, DRY, AUTO, FAN, HEAT...
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Page 7: Specification
SPECIFICATION 3-1. Specification PDFY-P20 PDFY-P25 PDFY-P32 PDFY-P40 PDFY-P50 Model Item VM-A VM-A VM-A VM-A VM-A 220-240 / 220 Voltage Power source 50 / 60 Frequency Cooling capacity Note:1 Heating capacity Note:1 0.13/0.15 0.13/0.15 0.11/0.12 Cooling 0.11/0.12 Power cons mption 0.11/0.12 0.13/0.15 0.13/0.15 Heating... - Page 8 3-2. Electrical parts specifications Model PDFY-P20 PDFY-P25 PDFY-P32 PDFY-P40 PDFY-P50 PDFY-P63 PDFY-P71 PDFY-P80 PDFY-P100 PDFY-P125 Symbol Parts VM-A VM-A VM-A VM-A VM-A VM-A VM-A VM-A VM-A VM-A name Tranrsformer (Primary) 240V 50Hz (Secondary) (23.5V 0.9A) 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 Liquid pipe TH22...
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Page 9: Outlines And Dimensions
OUTLINES AND DIMENSIONS Indoor Unit Unit : mm PDFY-P20·25·32·40·50·63·71·80VM-A... - Page 10 Indoor Unit Unit : mm PDFY-P100,125VM-A...
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Page 11: Wiring Diagram
WIRING DIAGRAM... -
Page 13: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM Gas pipe thermistor TH23 Gas pipe Liquid pipe thermistor TH22 Flare connection Heat exchanger Linear expansion valve Strainer (#100mesh) Strainer (#100mesh) Room temparature thermistor TH21 Capacity PDFY-P20,25,32,40VM-A PDFY-P50,63,71,80VM-A PDFY-P100,125VM-A Item Gas pipe ø12.7<1/2F> ø15.88<5/8F> ø19.05<3/4F> Liquid pipe ø6.35<1/4F>... -
Page 14: Trouble Shooting
TROUBLE SHOOTING 7-1. How to check the parts Parts name Check points Room temparature Disconnect the connector, then measure the resistance using a tester. thermistor (Sorrounding temperature 10˚C~30˚C) (TH21) Liquid pipe thermistor (TH22) Normal Abnormal Gas pipe thermistor (Refer to the thermistor) (TH23) 4.3kΩ... - Page 15 <Thermistor Characteristic graph> < Thermistor for lower temperature > Room temparature thermistor(TH21) Thermistor for Liquid pipe thermistor(TH22) lower temperature Gas pipe temparature thermistor(TH23) Drain sensor(DS) =15kΩ ± 3% Thermistor R Fixed number of B=3480kΩ ± 2% Rt=15exp { 3480( 273+t 0˚C 15kΩ...
- Page 16 <Output pulse signal and the valve operation> Output Output (Phase) Closing a valve Opening a valve : 4 ø1 The output pulse shifts in above order. ø2 1. When linear expansion valve operation stops, all output phase become OFF. ø3 2.
- Page 17 Operation by switch Switch Pole Function Remarks Thermistor<Intake temperature Indoor unit Built-in remote controller Address board detection>position Filter crogging detection Provided Not provided <At delivery> Filter life 2,500hr 100hr 1 2 3 4 5 6 7 8 9 10 Air intake Effective Not effective Remote indication switching...
- Page 18 Switch Pole Operation by switch Remarks Address board <At delivery> As this switch is used by interlocking with SWC,refer to the item of SWC for detail Option Note:1 Address board When attach the optional high perfor- mance filter elements (filter casement) <At delivery>...
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Page 19: Disassembly Procedure
DISASSEMBLY PROCEDURE 8-1 CONTROL BOX Be careful removing heavy parts. OPERATING PROCEDURE PHOTOS 1.Removing the control box cover (1)Remove the fixing screws(two) of the cover(A) and remove the cover. 2.Removing the control box and cover (1)Remove the fixing screw and earth screw. (2)Slide the control box in direction of the arrow 1. - Page 20 8-2 THERMISTOR (Liquid piping temperature detection) Be careful removing heavy parts. OPERATING PROCEDURE PHOTOS 1.Removing the cover (1)Remove the fixing screws(two) of the cover(C) and remove the cover. 2.Removing the thermistor (1)Remove the thermistor(D), from the thermistor holder(E), which are installed on the copper tube. Fig.1 (D),(E) Fig.2...
- Page 21 8-4 DRAINPAN OPERATING PROCEDURE PHOTOS 1.Removing the cover (1)Remove the fixing screws of the cover(H) and remove the cover. 2.Removing the drainpan (1)Pull and remove the drainpan in the direction of the arrow 1 and 2 alternatively. Fig.1 Fig.2...
- Page 22 8-5 THERMISTOR (Gus piping temperature detection) OPERATING PROCEDURE PHOTOS 1.Removing the cover (1)Remove the fixing screw of the cover(J) and remove the cover. 2.Removing the thermistor (1)Remove the thermistor(K), from the thermistor holder(L), which are installed on the copper tube. Fig.1 Fig.2 (K),(L)
- Page 23 8-6 FAN and FAN MOTOR OPERATING PROCEDURE PHOTOS 1.Removing the filter (1)Press the tabs of the filter and remove the filter in the direction of the arrow 1. 2.Removing the control box with procedure 8-1 3.Removing the bottom plate (1)Remove the fixing screws (two) of the bottom plate(N) and remove the plate.
- Page 24 8-7 HEAT EXCHANGER OPERATING PROCEDURE PHOTOS 1.Removing the drainpan with procedure 8-4 2.Removing the cover(J) with procedure 8-5 3.Removing the Heat exchanger (1)Remove the fixing screws of the heat exchang- er(S) and remove the heat exchanger. Fig.1 Fig.2...
- Page 28 HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Issued in May. 2001 MEE01K052 New publication, effective May. 2001 Printed in Japan Specifications subject to change without notice...