Mitsubishi Electronics MSH-24NV, MSH-07NV, MSH-12NV Removing the heat exchanger and the compressor

Page 69

OPERATING PROCEDURE

PHOTOS

3. Removing the heat exchanger and the compressor

Photo 4

(1) Remove the rear panel.Remove the valve bed, and

Screws

open the rear panel to the rear to remove.

 

NOTE :

 

All panels are fixed by catches, and must be removed by

 

shifting up and down.

 

(2) Remove the screws of the right side panel and remove

 

it.

 

(3) Remove the screws of the rear guard and remove it.

 

(4) Remove the screws of the separator support plate and

 

remove it.

 

(5) Remove the screws of the motor support and remove

 

it.

Screws

(6) Remove the screws of the valve bed.

The valve bed is fixed by the catches on the right and

 

left sides.

 

Lift it to remove.

 

(7) Remove the electrical parts box.

 

Disconnect the connectors from the high pressure

 

switch, crank case heater, shell thermo, and fan motor

 

lead.

 

(8) Remove the screws of the separator and remove it.

Photo 5

(9) Remove the screws of the heat exchanger and remove

it.

Heat exchanger

Detach the welded point of pipe.

 

(10) Remove the nuts of the compressor and remove it.

 

Detach the welded points of the compressor suction

 

pipe and discharge pipe.

 

 

Accumulator

Photo 6

Charge plug

Ball valve

Compressor

69

Image 69
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-24NV MSH-09NVRH-135VGHT RH-174VGHT SpecificationRC4V19-AA WHT-BLK292 BLK-RED324RC4V19-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 MSH-18NV E3 MSH-24NV E1 MSH-18NV E2 MSH-24NV E2MUH-18NV E1 MUH-18NV E2 MUH-18NV E3Unit mm inch MUH-24NV- E1 MUH-24NV- E2MUH-07NV Models Wiring Diagram MUH-09NV Outdoor Unit Wiring DiagramF12 FUSE93 Model Wiring DiagramDsar Surge Absorber MUH-18NV E1IC141 Hybrid IC Vane MotorMUH-24NV E1 MSH-24NV E1Contactor Vane Motor MSH-09NV E2 MSH-12NV E2Reversing Valve Coil Relay FAN Motor CapacitorMUH-12NV E2 MUH-18NV E2 Model Wiring Diagram Hybrid IC MUH-24NV E2Surge Absorber TB,TB2 Terminal Block FUSE2A FAN Motor RelayIndoor Unit to Outdoor MSH-07NV Indoor Unit Refrigerant System DiagramMUH-07NV E1 MUH-07NV E2 MUH-09NV E1 MSH-09NV 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 E2MAX. Height Difference MAX. Refrigerant Piping LengthAdditional Refrigerant CHARGER-22 g MSH-07NV MSH-09NV MSH-12NV 150When vacuuming Evacuation Proceduresair PurgeAIR Flow Guaranteed VoltageMain Readings Indoor Unit Outdoor UnitOutdoor LOW Pressure and Outdoor Unit Current Cool operationMUH-07NV E1 E2 MUH-12NV E1 E2 MUH-09NV E1 E2MUH-18NV E1 E2 E3 MUH-24NV E1 E2Heat operation Microprocessor Control Indoor Unit Display SectionFeel Control Or less Initial room temperature Minus DRY mode 23 or Minus Heat mode Or lessFuzzy control DRY mode of I Feel Control Cool mode of I Feel ControlWhen the room temperature is 23C or over When the room temperature is under 23CHeat 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 J1 2The reset button can be located on the front sideNo unit Cut J2 No unit Cut both J1 and 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 MSH-12NV- E2 MSH-12NV- E1MSH-18NV- E3 Trouble criterion of main partsInodoor 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 E1Operating Procedure Photos Disassembly InstructionsMSH-07NV E1 MSH-07NV E2 MSH-09NV E1 MSH-09NV E2 MSH-12NV E1 MSH-12NV E2Removing the electrical box Photo Operating ProcedureRemoving the vane motor Photo Removing the line flow fan and the indoor fan motor PhotoMSH-24NV MSH-18NV MSH-18NV E1 MSH-18NV E3Removing the electronic control P.C. board Photo Remove the front panel. Refer toRemoving the indoor fan motor and the line flow fan MUH-07NV MUH-09NV MUH-07NV E1 MUH-09NVRemoving the cabinet Photo Remove the deicer P.C. boardRemoving 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 Cabinet Service PanelTOP Panel FAN GuardMUH-07/09NV- E1 MUH-09NV E1 MUH-07NV E2 MUH-09NV E2Propeller FAN Deicer P.C. BoardOutdoor 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 Remote Controller Accessory and Remote Controller PartsRemote Controller Holder Outdoor Unit Structural PartsOptional Parts AIR Cleaning FilterRefrigerant Pipes Deodorizing Filter

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.