(3)Positioning

The vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle. The positioning is decided as follows.

(a)When the OPERATE/STOP button is pressed. (POWER ON/OFF)

(b)When the vane control is changed from AUTO to MANUAL.

(c)When the SWING is finished.

(d)When the test run starts.

(e)When the power supply turns ON.

(4)VANE AUTO ( ) mode

In VANE AUTO mode, the microprocessor automatically determines the vane angle and operation to make the optimum room-temperature distribution.

In COOL and DRY operation

Vane angle is fixed to Angle 1.

In HEAT operation

Vane angle is fixed to Angle 4.

(5)Dew prevention

During COOL or DRY operation at vane Angle 4 or 5 when the compressor cumulative operation time exceeds 1 hour, the vane angle automatically changes to Angle 1 for dew prevention.

(6)SWING MODE ( )

By pressing the SWING button ( ) vane swings vertically. The remote controller displays “ ”. SWING mode is cancelled when the SWING button or VANE CONTROL button ( ) is pressed or the operation stops or changes to other mode.

(7)Cold air prevention in HEAT operation

When either of the following conditions occurs in HEAT operation, the horizontal vane angle changes to Angle 1 automati- cally to prevent cold air blowing on users.

Compressor is not operating.

Defrosting is performed.

Indoor coil thermistor RT12 reads 24: or below.

Indoor coil thermistor RT12 temperature is raising from 24°C or below, but it does not exceed 28:.

Set position

Indoor coil thermistor RT12 temperature

Angle 1

NOTE:At initial in hysteresis this control works.

24:

28:

8-7. SLEEP MODE ( )

When the SLEEP button ( ) is pressed, the indoor fan speed drops and the air flow sound from the indoor unit is decreased.

• The indications of the remote controller are “ ” and “

”.

When the FAN SPEED CONTROL button ( ) is pressed during the SLEEP mode, the SLEEP mode is released.

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Mitsubishi Electronics MSH-12NV, MSH-07NV, MSH-09NV, MSH-18NV, MSH-24NV service manual Sleep Mode

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.