Mitsubishi Electronics PCFY-P30NKMU-E service manual Contents, Parts Catalog OCB450

Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

February 2009

No. OCH450

TECHNICAL & SERVICE MANUAL

R410A R22

Indoor unit [Model names]

PCFY-P15NKMU-E

PCFY-P24NKMU-E

PCFY-P30NKMU-E

PCFY-P36NKMU-E

[Service Ref.]

PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E

Note:

This manual describes only service data of the indoor units.

RoHS compliant products have <G> mark on the spec name plate.

CONTENTS

1.

PART NAMES AND FUNCTIONS .......... 2

2.

SPECIFICATION ..................................... 4

3.

OUTLINES AND DIMENSIONS.............. 8

4.

WIRING DIAGRAM

11

5. REFRIGERANT SYSTEM DIAGRAM

........

12

 

...............

13

6. MICROPROCESSOR CONTROL

 

7.

TROUBLESHOOTING

20

8.

DISASSEMBLY PROCEDURE

29

PARTS CATALOG (OCB450)

INDOOR UNIT

Model name indication

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Contents Parts Catalog OCB450 ContentsPart Names and Functions Wired remote controller Specifications SpecificationSound Level Electrical Parts SpecificationsPCFY-P15NKMU-E PCFY-P24NKMU-E NC CurvesCmmcfm How to read curvesFront View Pcfy Gas pipe side/flared connection PCFY-P15, 24, 30, 36NKMU-E Wiring DiagramUnit mm inch Service Ref Refrigerant System DiagramPCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E Ø12.7 1/2 Ø15.88 5/8Room temperature Desired temperature How to operateMicroprocessor Control Indoor Unit Control 6-1. Cool OperationFloat switch control Pressed one time. Dry 67 to 87F DRY OperationControl modes Control details Remarks Thermo regulating Drain pump Same control as Cool operation VaneFAN Operation Pressed one time. Heating 63 to 83F Heat OperationDisplay in Heat operation Defrost Fan Control detailsFrom the preceding Control modes Control details Remarks Fan Thermo OFF modeAuto Operation Automatic COOL/HEAT Change Over Operation When Unit is StoppedDown TroubleshootingLinear expansion valve Closing a valve 1 → 2 → 3 → 4 → Trouble shootingBecome OFF ValveSensor signal check Function of DIP Switch How to set address High ceiling On SWA settingSwitch Match the indoor unit’s refrigerant pipe with the BC How to set branch number SW14 Series R2 onlyOperation by switch Effective Switch PoleJumper Pattern aPCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E Test Point DiagramSW1 Operating Procedure Photos & Illustrations Disassembly ProcedurePCFY-P15NKMU-E PCFY-P24NKUM-E PCFY-P30NKMU-E PCFY-P36NKMU-ERemoving the fan motor and right side fan Removing the room temperature thermistor TH21Removing the side panel Removing the fan 3 connectionRemove the screw from the side panel, and remove Side panel by sliding the panel to the frontRemoving the under panel Removing the vane motorRemoving the drain pan TH23 Removing the pipe thermistors/Liquid TH22 and GasRemoving the guide vane Removing the Auto vaneRemove 2 screws from the heat exchanger Removing the heat exchanger and LEVRemove the heat exchanger with LEV Page New publication, effective Feb

PCFY-P30NKMU-E, PCFY-P36NKMU-E, PCFY-P24NKMU-E, PCFY-P15NKMU-E specifications

Mitsubishi Electronics is renowned for its innovative solutions in the field of heating, ventilation, and air conditioning (HVAC) systems. Among its impressive lineup, the PCFY-P series of ceiling-mounted air conditioning units stands out for its advanced features, technologies, and efficient performance. The models PCFY-P15NKMU-E, PCFY-P24NKMU-E, PCFY-P36NKMU-E, and PCFY-P30NKMU-E cater to various cooling and heating needs, making them suitable for both residential and commercial applications.

One of the main features of the PCFY-P series is its superior efficiency rating. With advanced inverter technology, these units provide precise temperature control by adjusting the compressor speed to match the cooling or heating demand. This not only leads to significant energy savings but also ensures a comfortable environment at all times.

Another notable characteristic of the PCFY-P series is its whisper-quiet operation. Designed with noise-reduction technologies, these models operate at sound levels as low as 19 dB, making them ideal for environments requiring minimal disturbance, such as offices, libraries, or bedrooms.

The multi-zone capability of the PCFY-P series enhances its versatility. Each model can connect to multiple indoor units, allowing users to customize their climate control across different zones in a building. This adaptability facilitates tailored cooling or heating solutions, optimizing comfort and energy use.

Mitsubishi's advanced filtration systems improve indoor air quality by removing dust, allergens, and microorganisms. The PCFY-P series is equipped with highly efficient filters, ensuring that the air circulated is clean and healthy.

Smart technology integration is another hallmark of these models. With built-in Wi-Fi capability, they can be remotely controlled through a smartphone app or accessed via various smart home systems. This feature allows users to adjust settings, monitor energy consumption, and schedule operation times conveniently.

Sustainability is a key focus in Mitsubishi's design philosophy. The PCFY-P series utilizes environmentally friendly refrigerants that have a low global warming potential, aligning with modern environmental regulations and initiatives.

In summary, the Mitsubishi Electronics PCFY-P15NKMU-E, PCFY-P24NKMU-E, PCFY-P36NKMU-E, and PCFY-P30NKMU-E offer exceptional efficiency, quiet operation, air quality improvement, smart technology integration, and sustainable design. These characteristics position the PCFY-P series as a leading choice in the HVAC market, providing reliable comfort solutions for a variety of settings. Each model exemplifies Mitsubishi's commitment to innovation and performance, making them a valuable asset for climate control needs.