— COOL mode of “I FEEL CONTROL” —

Compressor and

OFF

outdoor fan motor

 

Indoor fan motor

ON

ON

ON

OFF

Run continuously in cooling mode

NOTE : Coil frost prevention during COOL mode of “I FEEL CONTROL”

There are two types of controls in coil frost prevention.

①Temperature control

<MSH-07/09/12> When the indoor coil thermistor RT12 reads 4°C or below for 5 minutes, the coil frost prevention mode starts.

<MSH-18/24>When the indoor coil thermistor RT12 reads 3°C or below, the coil frost prevention mode starts immediately. However the coil frost prevention will not work for 5 minutes after the compressor starts.

The compressor stops and the indoor fan operates at the set speed for 5 minutes.

After that, if RT12 still reads below 4°C (MSH-07/09/12) or below 3°C (MSH-18/24) this mode prolonged until the RT12 reads over 4°C (MSH-07/09/12) or 3°C (MSH-18/24).

②Time control

When the three conditions below have been satisfied for 1 hour and 45 minutes, compressor stops for 3 minutes.

a.Compressor has been continuously operating.

b.Indoor fan speed is Lo or Me.

c.Room temperature is below 26°C.

When compressor stops, the accumulated time is cancelled and when compressor restarts, time counting starts from the beginning.

Time counting also stops temporarily when the indoor fan speed becomes Hi or the room temperature exceeds 26°C.However, when two of the above conditions (b.and c.) are satisfied again.Time accumulation is resumed.

●Indoor fan operates at the set speed by FAN SPEED CONTROL button. Followings are the fan speed in AUTO.

Initial temperature difference

Fan Speed

 

 

 

 

Room temperature minus set temperature : 2 degrees or more ··············································Hi

 

 

 

 

Room temperature minus set temperature : 1 degree or more and less than 2 degrees·······Me

 

 

 

 

 

 

 

 

 

 

 

2 deg. 4 deg.

Room temperature minus set temperature : less than 1 degree··············································Lo

 

 

 

 

 

 

 

 

 

 

 

1.66 deg.

 

1 deg.

—DRY mode of “I FEEL CONTROL”—

The system for dry operation uses the same refrigerant circuit as the cooling circuit.

The compressor and the indoor fan are controlled by the temperature and the microprocessor.

By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature decrease.

The operation of the compressor and indoor fan is as follows.

1.When the room temperature is 23°C or over:

Compressor operates by temperature control and time control.

①Set temperature is controlled to fall 2°C as initial set temperature.

②When the thermostat is ON, the compressor repeats 8 minutes ON and 3 minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON. Indoor fan and outdoor fan operate in the same cycle as the compressor.

2.When the room temperature is under 23°C.

When the thermostat is ON, the compressor repeats 2 minutes ON and 3 minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON.

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Mitsubishi Electronics MSH-07NV, MSH-12NV, MSH-09NV, MSH-18NV Cool mode of I Feel Control, DRY mode of I Feel Control
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MSH-07NV, MSH-09NV, MSH-24NV, MSH-12NV, MSH-18NV specifications

Mitsubishi Electronics has long been recognized for its innovative heating and cooling solutions, particularly in the HVAC industry. Among its notable offerings are the MSH-18NV, MSH-12NV, MSH-24NV, MSH-09NV, and MSH-07NV models, which showcase advanced features and technologies to enhance indoor climate comfort.

One of the standout characteristics of these models is their energy efficiency. Each unit is equipped with an inverter technology that optimizes power consumption by adjusting the compressor's speed according to the cooling or heating requirement. This not only leads to considerable energy savings but also reduces operational costs for users. The units have received high seasonal energy efficiency ratings, making them an environmentally friendly choice.

The MSH series incorporates advanced filtration systems designed to improve indoor air quality. These systems capture dust, pollen, and other allergens, ensuring that the air circulated in residential or commercial spaces remains clean and healthy. Some models feature a dual-layer filter that further enhances dust and odor removal, providing a more comfortable environment for occupants.

In terms of design, the MSH series is sleek and modern, allowing seamless integration into various interiors. The compact size of these units means they can fit into tighter spaces without compromising performance or aesthetics. Moreover, the whisper-quiet operation is another appealing feature, as it ensures minimal noise disruption during cooling or heating periods.

The control mechanisms of the MSH models are user-friendly and versatile. They come equipped with an intuitive remote control, allowing users to easily adjust temperature settings and modes from across the room. Additionally, some models offer smart connectivity features, enabling integration with smart home systems for added convenience and control via mobile devices.

Durability is another key aspect of Mitsubishi's MSH series. They are constructed with high-quality materials designed to withstand various environmental conditions, ensuring longevity and reliable performance. The outdoor units are particularly resilient, featuring weather-resistant components that allow them to operate effectively even in extreme temperatures.

In conclusion, Mitsubishi Electronics' MSH-18NV, MSH-12NV, MSH-24NV, MSH-09NV, and MSH-07NV models represent a blend of energy efficiency, advanced air filtration, user-friendly controls, and durable construction. These units reflect Mitsubishi's commitment to providing high-quality heating and cooling solutions that cater to a wide range of residential and commercial needs while ensuring comfort and convenience for users.
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