Mitsubishi Electronics PMFY-P12NBMU-E1 Removing the electrical parts box, Removing the nozzle

Page 28

OPERATING PROCEDURE

PHOTOS&ILLUSTRATIONS

2. Removing the electrical parts box

Photo 2

Claw in middle

Nozzle

Electrical parts

(1)

Remove the panel.

of nozzle

(2)

Remove the address board cover.

(3)

Remove the electrical parts cover.

(4)

Disconnect the connectors of

fan motor, vane motor,

drain pump, room temperature thermistor,

pipe temperature thermistor,

condenser/evaporator temperature thermistor,

and drain sensor on the electrical controller board.

(5)

Disconnect the lead wire and earth wire from terminal

Drain pan

block.

Photo 3

Electrical parts

(6)Remove the electrical parts box.

cover

Address board

cover

3. Removing the nozzle	Photo 4
Note when the nozzle is removed.

Nozzle

Heat exchanger

·The insulation material (white) which prevents water drop is mounted to the side of vane motor. Remove the

insulation material before removing nozzle.

(See figure 4)

·After completing the service, re-mount the insulation

material as before as shown in right figure.

Vane motor

·After service, mount the double layer insulation

without fail.

The hard material side should be faced toward the

nozzle. (See figure 4)

(1)

Remove the panel.

Room temperature thermistor

(2)

Remove the room temperature thermistor.

Figure 4

(3)

Unhook the claws in the middle of nozzle and remove the

Insulation material

drain pan. (5 screws) (See photo 2)

Hard side of insulation

Soft side of insulation

(4)

Remove the nozzle side of the heat exchanger.(2 screws)

(5)

Remove the address board cover.

(6)

Remove the electrical parts cover.

(7)

Disconnect the connector of vane motor.

Nozzle

(8)

Remove the insulation material (white) on the right side of

nozzle.

(9)Remove the nozzle. (6 screws)

Vane motor

4. Removing the vane motor

Photo 5

(1)

Remove the nozzle. Refer to above-mentioned 3

Vane motor

Removing the nozzle.

(2)

Remove the vane motor.

28

Image 28

Contents Contents Revised EDITION-BFeatures Technical ChangesRemove dust and pollutants from return air Part Names and FunctionsReturns air from room Display Section ˚F˚CSpecification SpecificationsElectrical Parts Specifications WNote Refer to Wiring Diagram for the supplied voltageAIR Capacity Taken from Outside How to read curvesOperation in conjunction with duct fan Booster fan Noise Criterion Curves PMFY-P06NBMU-E PMFY-P15NBMU-EPMFY-P08NBMU-E PMFY-P12NBMU-EInstallation space required around Right sideIndoor TopWiring Diagram PMFY-P06NBMU-E PMFY-P08NBMU-EPmfy PMFY-P06NBMU-E1PMFY-P08NBMU-E1E1PMFY-P15NBMU-E1 Refrigerant System Diagram Unitin.mmHow to operate Microprocessor ControlIndoor Unit Control 8-1. Cool Operation Pressed once. Cooling 67 to 87FDrain sensor function Control modes Drain pump VaneBasic control system Desired temperature DRY OperationPressed once. Dry 67 to 87F Drain pump Same control as Cool operation VaneOn the vanes downward blow setting FAN OperationPressed once. Heating 63 to 83F Heat OperationDisplay in Heat operation Defrost From the preceding When Unit is Stopped Auto Operation Automatic COOL/HEAT Change Over OperationTrouble Shooting Linear expansion valve Operation summary of the linear expansion valveTrouble shooting Output PhaseLinear expansion valve operation Troubleshooting Any broken wire by using a tester Replace the fuseReplace the fan motor Indoor controller board fuse check YesFunction of DIP Switch Switch Pole SW11 SW14 SwitchOperation by switch Effective SW12SW4 Disassembly Procedure Operating Procedure PHOTOS&ILLUSTRATIONSRemoving 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 Part Name Specification Qty/set RemarksDrawing No E11 003Part number that is circled is not shown in the figure Electrical Parts PMFY-P06NBMU-E PMFY-P08NBMU-E RoHS E16R01 E01 E07 E14 E15 E04R01 23A 102 R01 E04 103R01 E32 114 R01 E01 079Qty/set E41 716R01 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.

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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.