Mitsubishi Electronics MSH-18NV, MSH-07NV Removing the indoor fan motor and the line flow fan

Page 63

 

OPERATING PROCEDURE

 

PHOTOS

3. Removing the electrical box

 

 

 

 

Photo 3

 

screw

(1)

Remove the front panel. (Refer to 1)

 

 

 

 

 

 

 

 

 

 

(2)

Remove the electrical cover.

 

 

 

 

(3)Disconnect the connector of the indoor coil thermistor.

(4)Disconnect the motor connector (CN211 and CN121) and the vane motor connector (CN151) on the electronic con- trol P.C. board.

(5)Remove the screw of the electrical box, remove the electri- cal box.

screw

4. Removing the indoor fan motor and the line flow fan

 

 

 

 

 

 

 

(1)

Remove the front panel.

 

Photo 4

 

 

 

 

 

 

 

 

 

 

Heat exchanger

(2)

Remove the electrical box.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(3)

Unhook the catch on the both sides of the nozzle assem-

 

 

 

 

 

 

 

 

bly.

 

 

 

 

 

 

 

 

 

Catch

 

 

 

 

 

 

 

 

 

 

 

(4)

Remove the nozzle assembly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(5)

Remove the screws of the bearing support.

 

 

 

 

 

 

 

Heat exchanger

 

 

 

 

 

 

 

 

 

 

(6)

Remove the screw of the heat exchanger unhook the

 

screw

 

 

 

 

 

 

catch.

 

 

 

 

 

 

 

(7)

Lifting the heat exchanger, remove the bearing support.

 

 

 

 

 

 

 

(8)

Remove the motor support.

 

 

 

 

 

 

 

(9)

Loose the screw fixing the line flow fan, remove the line

 

 

 

 

 

 

Bearing support

 

 

 

 

 

 

flow fan.

screws

 

 

 

 

 

(10) Remove the screws of the motor band, remove the fan

 

 

 

 

 

 

 

 

motor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Photo 5

Indoor fan motor

Fan

motor screws

Line flow fan

Motor band

63

Image 63
Contents Contents Technical Changes Part Names and Functions Indoor UnitOutdoor Unit MSH-07NV E1 MSH-09NV E1 MSH-12NV E1 MSH-18NV E1 MSH-18NV E2 Remote ControllerMSH-09NV MSH-07NV E1 MSH-12NV E1 MSH-07NV E2 MSH-12NV E2 MSH-24NV E2MSH-09NV MSH-24NVWHT-BLK292 BLK-RED324 SpecificationRH-135VGHT RH-174VGHT RC4V19-AARC4V19-AA RA4V27-EA RH-231VHAT NH-36VMDTNH-47VMDT RA4V27-ECRA6V85-AA Are Connected with MXZ-32NV- E1 as multi system unitsWHT-BLK292 BLK-RED324 WHT-BLK292 BLK-RED324 RA4V19-AA RA4V27-EA WHT-BLK292 BLK-RED324 WHT-BLK184 BLK-RED251DB27C / WB19C Outdoor DB35C / WB24C Outlines and Dimensions MSH-12NV E2 MUH-12NV E1 MUH-12NV E2 MUH-18NV E3 MSH-24NV E1 MSH-18NV E2 MSH-24NV E2MSH-18NV E3 MUH-18NV E1 MUH-18NV E2Unit mm inch MUH-24NV- E1 MUH-24NV- E2MUH-07NV Models Wiring Diagram MUH-09NV Outdoor Unit Wiring DiagramF12 FUSE93 Model Wiring DiagramHybrid IC Vane Motor MUH-18NV E1Dsar Surge Absorber IC141MUH-24NV E1 MSH-24NV E1FAN Motor Capacitor MSH-09NV E2 MSH-12NV E2Contactor Vane Motor Reversing Valve Coil RelayMUH-12NV E2 MUH-18NV E2 Model Wiring Diagram FUSE2A FAN Motor Relay MUH-24NV E2Hybrid IC Surge Absorber TB,TB2 Terminal BlockIndoor Unit to Outdoor MUH-09NV E1 MSH-09NV E2 Refrigerant System DiagramMSH-07NV Indoor Unit MUH-07NV E1 MUH-07NV E2MUH-18NV E1 MUH-18NV E2 MUH-18NV E3 MSH-18NV E1 MSH-18NV E2 MSH-18NV E3Outdoor Unit Indoor Unit MSH-24NV E1 MUH-24NV E1 MSH-24NV E2 MUH-24NV E2MSH-07NV MSH-09NV MSH-12NV 150 MAX. Refrigerant Piping LengthMAX. Height Difference Additional Refrigerant CHARGER-22 gWhen vacuuming Evacuation Proceduresair PurgeIndoor Unit Outdoor Unit Guaranteed VoltageAIR Flow Main ReadingsOutdoor LOW Pressure and Outdoor Unit Current Cool operationMUH-07NV E1 E2 MUH-24NV E1 E2 MUH-09NV E1 E2MUH-12NV E1 E2 MUH-18NV E1 E2 E3Heat operation Microprocessor Control Indoor Unit Display SectionFeel Control Or less Initial room temperature Minus DRY mode 23 or Minus Heat mode Or lessFuzzy control When the room temperature is under 23C Cool mode of I Feel ControlDRY mode of I Feel Control When the room temperature is 23C or overHeat mode of I Feel Control Operation time chart ExampleIndoor fan speed control RT12 temperature High pressure protectionDefrostings X62 Reversing valve coil 15 sec Cool Operation DRY OperationHeat FAN Motor Control Auto Vane OperationSleep Mode Cancel How to set the timerEMERGENCY-TEST Operation Service Functions MSH-07NV E1 MSH-18NV E2 MSH-09NV E1 MSH-12NV E1 MSH-18NV E1Table.1 No unit Cut both J1 and J2 2The reset button can be located on the front sideNo unit Cut J1 No unit Cut J2MSH-07NV E2 MSH-12NV E2 MSH-18NV E3 MSH-09NV E2 MSH-24NV E2 MSH-07/09/12 MSH-18/24Operation Troubleshooting Operation Indicator Instruction of troubleshootingPage Trouble criterion of main parts MSH-12NV- E1MSH-12NV- E2 MSH-18NV- E3Inodoor fan does not operate Check of indoor fan motorCheck of indoor electronic control P.C. board MSH-07NV MSH-09NV MSH-12NV MSH-24NV MSH-18NV E1 Indoor electric control P.C.board Test Point Diagram and VoltageDeicer P.C. Board MUH-18NV E1 Outdoor deicer P.C. boardPower supply input MSH-24NV E1 MSH-18NV E2 MSH-24NV E2 MSH-18NV E3 MUH-07NV MUH-12NV MUH-18NV MUH-07NV E1 MUH-09NV E1 MUH-24NV E1MSH-09NV E1 MSH-09NV E2 MSH-12NV E1 MSH-12NV E2 Disassembly InstructionsOperating Procedure Photos MSH-07NV E1 MSH-07NV E2Removing the line flow fan and the indoor fan motor Photo Operating ProcedureRemoving the electrical box Photo Removing the vane motor PhotoRemove the front panel. Refer to MSH-18NV E1 MSH-18NV E3MSH-24NV MSH-18NV Removing the electronic control P.C. board PhotoRemoving the indoor fan motor and the line flow fan Remove the deicer P.C. board MUH-07NV E1 MUH-09NVMUH-07NV MUH-09NV Removing the cabinet PhotoRemoving the compressor Photo Removing the outdoor fan motorMUH-12NV E1 MUH-18NV MUH-18NV E3 MUH-12NV MUH-18NVRemoving the deicer P.C. board Photo Remove the cabinet. Refer to Removing the outdoor fan motor PhotoOutdoor Unit Operating Procedure Photos Removing the electrical partsRemoving the fan motor Photo Removing the heat exchanger and the compressor Indoor Unit Heat EXCHANGER1 Parts ListIndoor Unit Electrical Parts FAN Guard Service PanelCabinet TOP PanelDeicer P.C. Board MUH-09NV E1 MUH-07NV E2 MUH-09NV E2MUH-07/09NV- E1 Propeller FANOutdoor Unit Structural Parts MUH-12NV E1 MUH-12NV E2 Indoor Unit Structural Parts MSH-18NV E1 WH MSH-24NV E1 WH MSH-18NV E2 WH MSH-24NV E2 WH MSH-18NV E3 WHIndoor Unit Heat Exchanger Parts 1714 147 Outdoor Unit Structural Parts MUH-18NV E1 MUH-18NV E2Outdoor Unit Structural PARTS17 Outdoor Unit Structural Parts Accessory and Remote Controller PartsRemote Controller Remote Controller HolderDeodorizing Filter AIR Cleaning FilterOptional Parts Refrigerant Pipes

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.