(2)Mode change

In case of the following conditions, the operation mode is changed.

COOL mode changes to HEAT mode when 15 minutes have passed with the room temperature 4 °F below the set temperature.

HEAT mode changes to COOL mode when 15 minutes have passed with the room temperature 4 °F above the set temperature.

In the other cases than the above conditions, the present operation mode is continued.

NOTE1: Mode selection is performed when multi standby (refer to NOTE2) is released and the unit starts operation with ON-timer.

NOTE2: If two or more indoor units are operating in multi system, there might be a case that the indoor unit, which is operating in AUTO ( ), cannot change over the other operating mode (COOL HEAT) and becomes a state of standby.

(3)Indoor fan control/ Vane control

As the indoor fan speed and the horizontal vane position depend on the selected operation mode, when the operation mode changes over, they change to the exclusive ones.

2-5. OUTDOOR FAN MOTOR CONTROL

Fan speed is switched according to the compressor frequency.

Fan speed

 

 

 

 

<Relation between compressor frequency and fan speed>

 

 

Down

Up

 

 

 

 

High

 

Compressor frequency (Hz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Down

Up

 

Low

 

 

 

 

 

 

MUZ-A

33

44

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MUY-A

 

Min.

Compressor frequency Max.

 

 

MUZ-FD

33

44

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MUZ-D

39

54

 

 

 

 

 

 

 

 

MUY-D

 

 

 

 

 

 

 

 

 

 

 

2-6. AUTO VANE OPERATION

1. Horizontal vane

(1) Cold air prevention in HEAT operation (MUZ)

When any of the following conditions occurs in HEAT operation, the vane angle changes to Horizontal position automati- cally to prevent cold air blowing on users.

Compressor is not operating.

Defrosting is performed.

Indoor coil thermistor temperature does not exceed 102 °F within about 3 minutes after compressor starts. NOTE: When 2 or more indoor units are operated with multi outdoor unit, even if any indoor unit turns thermostat off,

this control doesn’t work in the indoor unit.

(2)ECONO COOL ( ) operation (ECONOmical operation)

When ECONO COOL button is pressed in COOL mode, set temperature is automatically set 3.6 °F higher than that in COOL mode.

Also the horizontal vane swings in various cycle according to the temperature of indoor heat exchanger (indoor coil thermistor).

SWING operation makes you feel cooler than set temperature. So, even though the set temperature is higher than that in COOL mode, the air conditioner can keep comfort. As a result, energy can be saved.

ECONO COOL operation is cancelled when ECONO COOL button is pressed once again or VANE CONTROL button is pressed or change to other operation mode.

11

Page 11
Image 11
Mitsubishi Electronics MUZ-ANA - U, MS-AWA, MUY-ANA, MU-AWA manual Outdoor FAN Motor Control, Muz-A Muy-A, Muz-Fd Muz-D Muy-D

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.