(2) Releasing conditions of defrosting

Defrosting is released when any of the following conditions is satisfied:

a)The defrost thermistor continues to read 50 °F or more (MUZ-A09/12MUZ-D) / 41 °F or more (MUZ-A15/17MUZ-FD) / 59 °F or more (MUZ-A24) for 30 seconds.

b)Defrosting time has exceeded 10 minutes.

c)Any other mode than HEAT mode is set during defrosting.

Time chart of defrosting in HEAT mode (reverse type)

<Indoor unit>

Horizontal vane

Indoor fan

set position

set speed

horizontal

horizontal (temperature of indoor coil thermistor < 102 °F)

Very Low (temperature of indoor coil thermistor > 64 °F)

OFF

set position

set speed

 

 

30

 

 

 

 

 

seconds

 

 

 

<Outdoor unit>

 

 

 

 

 

 

 

 

Maximum frequency

 

 

Compressor normal

 

 

 

 

 

 

 

OFF

 

 

OFF

 

40

30

 

40

30

 

seconds seconds

5 seconds

seconds

seconds

 

 

 

 

 

 

ON

 

 

 

 

Outdoor fan

 

 

 

 

 

 

 

 

OFF

 

 

R.V. coil

ON (HEAT)

 

 

 

 

 

OFF (COOL)

 

 

(21S4)

 

 

 

 

 

 

 

 

 

5seconds

ON

ON (HEAT)

2-4. AUTO CHANGE OVER ··· AUTO MODE OPERATION (MSZ)

Once desired temperature is set, unit operation is switched automatically between COOL and HEAT operation.

1.Mode selection

(1)Initial mode

At first indoor unit operates only indoor fan with outdoor unit OFF for 3 minutes to detect present room temperature. Following the conditions below, operation mode is selected.

If the room temperature thermistor reads more than set temperature, COOL mode is selected.

If the room temperature thermistor reads set temperature or less, HEAT mode is selected.

10

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Mitsubishi Electronics MS-AWA, MUZ-ANA - U, MUY-ANA, MU-AWA Auto Change Over ··· Auto Mode Operation MSZ, Mode selection

MSZ-FDNA, MUZ-FDNA - U, MUZ-FDNA, MUZ-ANA - U, MUY-ANA specifications

Mitsubishi Electronics has long been a leader in the HVAC (heating, ventilation, and air conditioning) industry, consistently delivering cutting-edge technology and innovative solutions. The MUZ-ANA, MUZ-ANA - U, MU-AWA, MUZ-FDNA, and MS-AWA models exemplify the company's commitment to efficiency, comfort, and advanced engineering.

The MUZ-ANA series is designed for residential and light commercial applications, offering powerful cooling and heating performance. One of the key features is its inverter technology, which allows for variable-speed operation. This means that the system can adjust the compressor speed according to the temperature demands, leading to significant energy savings and consistent comfort levels throughout the space. Additionally, the MUZ-ANA series operates quietly, ensuring a pleasant indoor environment.

The MUZ-ANA - U model takes energy efficiency a step further by incorporating a top-tier seasonal energy efficiency ratio (SEER) and heating seasonal performance factor (HSPF). This model is designed to maximize comfort while minimizing energy consumption, making it ideal for eco-conscious consumers.

The MU-AWA series is specifically tailored for larger spaces, making it suitable for commercial settings. Its robust design ensures reliability even under the most demanding conditions. Key features include advanced filtration systems that improve indoor air quality by trapping particulates and allergens, preferred by businesses aiming for a healthier environment.

The MUZ-FDNA model stands out for its sleek, compact design that fits seamlessly into various installation contexts, making it flexible for diverse architectural styles. It also features a built-in drain pan that helps in moisture removal, preventing mold growth and enhancing system longevity.

The MS-AWA model is particularly noteworthy for its smart connectivity options, allowing users to control their HVAC system via mobile devices. This feature empowers users to monitor and adjust temperatures remotely, providing added convenience and efficiency.

In summary, the Mitsubishi Electronics MUZ-ANA, MUZ-ANA - U, MU-AWA, MUZ-FDNA, and MS-AWA models feature state-of-the-art technology geared towards maximizing efficiency, comfort, and reliability. From inverter technology to smart connectivity, these units are designed to meet modern consumer demands while emphasizing sustainability and performance. With Mitsubishi Electronics, you can be assured of exceptional quality and technological advancement in HVAC solutions.