2 deg. 4 deg. 1 deg. 1.66 deg.

Operation time chart Example

Thermostat

Indoor fan

Outdoor fan compressor

1st ON

ONON

 

OFF

ON

ON

 

OFF

8 min.

3 min.

ON

OFF

ON

OFF

ON

OFF

1 min.

4 min.

NOTE Coil frost prevention during DRY mode of “I FEELCONTROL”

The operation is as same as coil frost prevention during COOL mode of “I FEELCONTROL”. However the indoor fan speed becomes the set speed or Lo.

— HEAT mode of “I FEEL CONTROL” —

1.Indoor fan speed control

(1) Followings are the fan speed in AUTO.

Initial temperature difference Fan speed

Set temperature minus room temperature: 2 degrees or more·················································Hi

Set temperature minus room temperature: 1 degree or more and less than 2 degrees···········Me

Set temperature minus room temperature: less than 1 degree·················································Lo

(2) Cold air prevention control

The fan runs at set speed when the indoor coil thermistor RT12 temperature exceeds 22°C. The fan operates at VLo when the temperature is below 18°C. But the fan stops when the indoor fan operates at VLo and the temperature is 15°C or less.

NOTE : At initial in hysteresis this control works.

 

Released

 

Cold Air Prevention

(3) New warm air control.

18: 22:

 

When compressor starts in heating operation or after defrosting, the fan changes the speed due to the indoor coil ther- mistor RT12 temperature to blow out warm air.

After releasing of cold air prevention, when the indoor coil temperature is 37°C or above, the fan speed shifts to the set speed, and when the fan speed is changed by the remote controller, the fan speed is the set speed.

When the indoor coil temperature is less than 37°C, the fan speed is controlled by time as below. <Time condition> <Indoor fan speed>

less than 2 minutes························Lo

2 minutes to 4 minutes···················Me

4 minutes or more··························Hi

The upper limit of the fan speed is the set speed.

If the thermostat turns off, this operation changes to flow soft control.

(4)Flow soft control

After the thermostat turns off, the indoor fan operates at VLo.

NOTE : When the thermostat turns on, the fan operates at the set speed. Due to the cold air prevention control, the fan does not start until the indoor coil thermistor RT12 reads 22°C or more.

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Mitsubishi Electronics MSH-12NV Heat mode of I Feel Control, Operation time chart Example, Indoor fan speed control

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.