8 ACTUATOR CONTROL

MUZ-FD09NA

MUZ-FD12NA

8-1. OUTDOOR FAN MOTOR CONTROL

The fan motor turns ON/OFF, interlocking with the compressor.

[ON] The fan motor turns ON 5 seconds before the compressor starts up.

[OFF] The fan motor turns OFF 15 seconds after the compressor has stopped running.

5 seconds

15 seconds

ON

Compressor

OFF

ON

Outdoor fan motor

OFF

8-2. R.V. COIL CONTROL

Heating . . . . . . . . . . . . . . . . . ON

Cooling . . . . . . . . . . . . . . . . . OFF

Dry . . . . . . . . . . . . . . . . . . . . OFF

NOTE: The 4-way valve reverses for 5 seconds right before start-up of the compressor.

<COOL><HEAT>

 

 

5 seconds

 

 

5 seconds

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

Compressor OFF

 

 

 

 

 

 

 

R.V.coil

ON

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor fan ON

 

 

 

 

 

 

 

motor

OFF

 

 

 

 

 

 

 

8-3. RELATION BETWEEN MAIN SENSOR AND ACTUATOR

 

 

 

 

 

 

Sensor

 

Purpose

 

 

Actuator

 

 

 

Compressor

LEV

Outdoor

R.V. coil

Indoor fan

 

 

 

 

 

fan motor

motor

 

 

 

 

 

 

 

 

Discharge temperature thermistor

 

Protection

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor coil temperature thermistor

 

Cooling : Coil frost prevention

 

 

 

 

 

 

 

Heating : High pressure protection

 

 

 

 

 

 

 

 

 

 

 

 

Defrost thermistor

 

Cooling : High pressure protection

 

 

 

 

 

 

Heating : Defrosting

 

 

 

 

 

 

 

 

 

 

 

 

 

Fin temperature thermistor

 

Protection

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor heat exchanger temperature thermistor

 

High pressure protection

 

 

 

 

 

 

 

 

 

 

 

Ambient temperature thermistor

 

Low ambient temperature operation

 

 

 

15

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Mitsubishi Electronics MUZ-FD09NA service manual Actuator Control, Outdoor FAN Motor Control, R.V. Coil Control

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.