N Electromagnetic noise enters into TV sets or radios

Is the unit grounded?

Yes

Is the distance between the antennas and the indoor unit within 9.91 ft., or is the distance between the antennas and the outdoor unit within 9.91 ft.?

No

Is the distance between the TV sets or radios and the indoor unit within 3.28 ft., or is the distance between the TV sets or radios and the outdoor unit within 9.91 ft.?

No

Are the antennas damaged? Is the coaxial cable damaged?

Is there any poor contact in the anten- na wiring?

No

Is the indoor/outdoor connecting wire of the air conditioner and the wiring of the antennas close?

No

No

Yes

Yes

Yes

Yes

Ground the unit.

Extend the distance between the antennas and the indoor unit, and/or the antennas and the

outdoor unit.

Extend the distance between the TV sets and/or radios and the indoor unit, or the TV sets or

radios and the outdoor unit.

Replace or repair the antenna.

Replace or repair the coaxial cable.

Extend the distance between the indoor/outdoor connecting wire of the air conditioner and the wir-

ing of the antennas.

Even if all of the above conditions are fulfilled, the electromagnetic noise may enter, depending on the electric field strength or the installation condition (combination of specific conditions such as antennas or wiring).

Check the followings before asking for service.

1.Devices affected by the electromagnetic noise TV sets, radios (FM/AM broadcast, shortwave)

2.Channel, frequency, broadcast station affected by the electromagnetic noise

3.Channel, frequency, broadcast station unaffected by the electromagnetic noise

4.Layout of ;

indoor/outdoor unit of the air conditioner, indoor/outdoor wiring, grounding wire, antennas, wiring from antennas, receiver

5.Electric field intensity of the broadcast station affected by the electromagnetic noise

6.Presence or absence of amplifier such as booster

7.Operation condition of air conditioner when the electromagnetic noise enters in

1)Turn OFF the power supply once, and then turn ON the power supply. In this situation, check for the electromagnetic noise.

2)Within 3 minutes after turning ON the power supply, press OPERATE/STOP (ON/OFF) button on the remote controller for power ON, and check for the electromagnetic noise.

3)After a short time (3 minutes later after turning ON), the outdoor unit starts running. During operation, check for the elec- tromagnetic noise.

4)Press OPERATE/STOP (ON/OFF) button on the remote controller for power OFF, when the outdoor unit stops but the indoor/outdoor communication still runs on. In this situation, check for the electromagnetic noise.

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Mitsubishi Electronics MUZ-FD09NA service manual Electromagnetic noise enters into TV sets or radios, Outdoor unit

MUZ-FD09NA specifications

The Mitsubishi Electronics MUZ-FD09NA is a highly efficient and versatile air conditioning unit designed for both residential and light commercial applications. This model is part of Mitsubishi's advanced range of split-system air conditioners which emphasize energy efficiency, comfort, and innovative technology.

One of the standout features of the MUZ-FD09NA is its energy efficiency. The unit boasts an impressive SEER (Seasonal Energy Efficiency Ratio) rating, which translates to reduced energy consumption and lower utility bills. This makes it an eco-friendly option for users looking to minimize their carbon footprint while enjoying comfortable indoor climates year-round.

The MUZ-FD09NA utilizes advanced inverter technology, which enables the compressor to adjust its speed based on the cooling or heating demand. This not only enhances comfort by maintaining a steady temperature but also significantly reduces energy consumption compared to traditional fixed-speed systems. Additionally, the inverter technology allows for quieter operation, making it ideal for use in bedrooms or study areas where noise can be disruptive.

For air purification, the MUZ-FD09NA is equipped with a high-efficiency filtration system that removes dust, allergens, and other particles from the air. This feature is especially beneficial for individuals with allergies or respiratory issues, ensuring cleaner and healthier indoor air quality.

In terms of user convenience, the unit comes with a user-friendly remote control, allowing for easy adjustment of settings from a distance. Some models may also offer Wi-Fi capability, enabling users to control their air conditioning unit through a smart device, even when away from home.

The MUZ-FD09NA is designed to operate in a wide range of temperatures, making it suitable for various climates. It can effectively provide cooling in the summer and heating in the winter, ensuring comfort throughout the year.

Furthermore, the unit features a compact and sleek design, allowing for easy installation in a variety of spaces without compromising aesthetics.

Overall, the Mitsubishi Electronics MUZ-FD09NA combines energy efficiency, advanced technology, and user-friendly features, making it a reliable choice for maintaining a comfortable indoor environment. Whether for residential or light commercial use, this air conditioning unit stands out as an effective solution for climate control needs.