Mitsubishi Electronics PMFY-P08NBMU-E1 service manual Revised EDITION-B, Contents

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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

July 2007

No. OC341

REVISED EDITION-B

TECHNICAL & SERVICE MANUAL

Indoor unit

 

[Model names]

[Service Ref.]

PMFY-P06NBMU-E

PMFY-P06NBMU-E

 

PMFY-P06NBMU-E1

PMFY-P08NBMU-E

PMFY-P08NBMU-E

 

PMFY-P08NBMU-E1

PMFY-P12NBMU-E

PMFY-P12NBMU-E

 

PMFY-P12NBMU-E1

PMFY-P15NBMU-E

PMFY-P15NBMU-E

 

PMFY-P15NBMU-E1

R410A / R22

Revision:

PMFY-P06/08/12/15NBMU-E1are added in REVISED EDITION-B.

Some descriptions have been modified.

Please void OC341 REVISED EDITION-A.

NOTE:

This manual describes only service data of the indoor units.

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

For servicing RoHS compliant products, refer to the RoHS

PARTS LIST.

CONTENTS

1.TECHNICAL CHANGES···········

2.FEATURES ················

3.PART NAMES AND FUNCTIONS ······

4.SPECIFICATION ··············

5.OUTLINES AND DIMENSIONS········

6.WIRING DIAGRAM·············

7.REFRIGERANT SYSTEM DIAGRAM ···12

8.MICROPROCESSOR CONTROL·······

9.TROUBLESHOOTING ···········

10.DISASSEMBLY PROCEDURE········

11.PARTS LIST················

12.RoHS PARTS LIST·············

INDOOR UNIT

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Contents Revised EDITION-B ContentsTechnical Changes FeaturesRemove dust and pollutants from return air Part Names and FunctionsReturns air from room ˚F˚C Display SectionSpecifications SpecificationWNote Refer to Wiring Diagram for the supplied voltage Electrical Parts SpecificationsAIR Capacity Taken from Outside How to read curvesOperation in conjunction with duct fan Booster fan PMFY-P15NBMU-E Noise Criterion Curves PMFY-P06NBMU-EPMFY-P08NBMU-E PMFY-P12NBMU-ERight side Installation space required aroundIndoor TopPMFY-P06NBMU-E PMFY-P08NBMU-E Wiring DiagramPmfy PMFY-P06NBMU-E1PMFY-P08NBMU-E1E1PMFY-P15NBMU-E1 Unitin.mm Refrigerant System DiagramMicroprocessor Control How to operateIndoor Unit Control 8-1. Cool Operation Pressed once. Cooling 67 to 87FDrain sensor function Control modes Drain pump VaneBasic control system DRY Operation Desired temperaturePressed once. Dry 67 to 87F Drain pump Same control as Cool operation VaneFAN Operation On the vanes downward blow settingPressed once. Heating 63 to 83F Heat OperationDisplay in Heat operation Defrost From the preceding Auto Operation Automatic COOL/HEAT Change Over Operation When Unit is StoppedTrouble Shooting Operation summary of the linear expansion valve Linear expansion valveTrouble shooting Output PhaseLinear expansion valve operation Any broken wire by using a tester Replace the fuse TroubleshootingReplace the fan motor Indoor controller board fuse check YesFunction of DIP Switch SW14 Switch Switch Pole SW11Operation by switch Effective SW12SW4 Operating Procedure PHOTOS&ILLUSTRATIONS Disassembly ProcedureRemoving the nozzle Removing the electrical parts boxRemoving the vane motor Removing the drain pump Removing the thermistorRoom temperature detectionRemoving the fan motor and line flow fan Qty/set Remarks Part Name SpecificationDrawing No E11 003Part number that is circled is not shown in the figure Electrical Parts PMFY-P06NBMU-E PMFY-P08NBMU-E E16 RoHSR01 E01 E07 E14 E15 E04R01 E04 103 R01 23A 102R01 E32 114 R01 E01 079E41 716 Qty/setR01 E27 246 R01 E21 246Made in Japan

PMFY-P08NBMU-E, PMFY-P12NBMU-E1, PMFY-P08NBMU-E1, PMFY-P06NBMU-E, PMFY-P12NBMU-E specifications

Mitsubishi Electronics has long been a pioneer in the field of air conditioning and climate control technologies. Among their impressive lineup of products is the PMFY series, which includes models such as the PMFY-P06NBMU-E1, PMFY-P12NBMU-E, PMFY-P06NBMU-E, PMFY-P08NBMU-E1, and PMFY-P12NBMU-E1. These advanced air conditioning systems are engineered to offer optimal comfort, energy efficiency, and innovative features for both residential and commercial applications.

One of the standout features of the PMFY series is its exceptional energy efficiency. Many models are equipped with advanced inverter technology, which allows for precise temperature control while significantly reducing energy consumption. This results in lower electricity bills and a reduced carbon footprint, making them an environmentally friendly choice for conscientious consumers.

Another key characteristic of the PMFY series is its advanced filtration system. These units are designed to improve indoor air quality by incorporating high-performance filters that effectively remove dust, allergens, and other pollutants. This is especially beneficial for individuals with respiratory conditions, contributing to a healthier indoor environment.

The PMFY models also boast a sleek and modern design, ensuring they blend seamlessly with any interior décor. Compact and lightweight, they can be installed in various settings, maximizing available space without compromising on performance.

Mitsubishi’s proprietary technology features an intelligent control system that allows users to manage their air conditioning units remotely. With options for Wi-Fi connectivity and compatibility with smart home systems, users can easily set schedules, adjust temperatures, and monitor energy usage from their smartphones or tablets.

Noise reduction is another important aspect of the PMFY series. These units operate at whisper-quiet levels, ensuring a peaceful atmosphere in homes and workplaces. This noise control technology is particularly advantageous for bedrooms, offices, and other quiet environments.

Lastly, the PMFY series is designed to be robust and reliable, with components that are engineered for durability and long life. Mitsubishi Electronics stands behind their products with comprehensive warranties, providing peace of mind and exceptional customer service.

In summary, the Mitsubishi Electronics PMFY-P06NBMU-E1, PMFY-P12NBMU-E, PMFY-P06NBMU-E, PMFY-P08NBMU-E1, and PMFY-P12NBMU-E1 are exemplary models that embody the essence of innovation, efficiency, and reliability. They represent the ideal choice for those seeking advanced climate control solutions suitable for a variety of spaces.