Mitsubishi Electronics MSZ-FD09NA service manual Refrigerant System Diagram, Unitinch

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6 REFRIGERANT SYSTEM DIAGRAM

MSZ-FD09NA MSZ-FD12NA

Unit:inch

Indoor coil

Indoor

thermistor

heat

RT12 (main)

exchanger

Indoor coil thermistor RT13 (sub)

Room temperature thermistor

RT11

Refrigerant pipe 3/8 (with heat insulator)

Flared connection

Refrigerant pipe 1/4 (with heat insulator)

Refrigerant flow in cooling

Refrigerant flow in heating

Image 9

Contents MSZ-FD09NA MSZ-FD12NA Specification has been corrected New model Part Names and Functions AccessoriesWeight External ﬁnish Power supply Phase, Hz 208/230Remote controller Indoor modelOutlet AIR Speed and Coverage Range Operating RangeUnit inch Outlines and DimensionsAir Air outWiring Diagram Refrigerant System Diagram UnitinchRefrigerant flow in cooling Refrigerant flow in heating Timer Short Mode Service FunctionsHow to modify the remote controller P.C. board P.C. Board Modification for Individual OperationHow to release Auto Restart Function Auto Restart FunctionOperation Refer to Microprocessor ControlLamp lights during operation Lamp blinks in abnormal conditionCool Operation DRY OperationHeat Operation Mode selection Auto Change Over ··· Auto Mode OperationAuto Vane Operation Outdoor Unit MXZ seriesFeet, set the horizontal DirectionVertical vane See Control Operation Area SettingSee Sensor Enlarged view of i-see SensorDaytime Nighttime Cold areaLighted Not lighted Center ····· Operation and operating rangeProgram Timer Minute Time Delay Operation Changing temperature indication F/CEMERGENCY/TEST Operation Before troubleshooting, check the following TroubleshootingLead wiring Housing point Troubleshooting procedure How to replace batteriesOFF Failure Mode Recall FunctionPower Indoor unit failure mode tableInstruction of Troubleshooting Lighted Blinking Troubleshooting Check TableArea R Power Trouble Criterion of Main Parts MSZ-FD09NAMSZ-FD12NA Check of indoor fan motor Troubleshooting FlowPage Replace the horizontal vane motor, How to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios Test Point Diagram and Voltage Indoor electronic control P.C. boardSW P.C. Board Power monitor receiver P.C. board Monitor P.C. board Removing the panel Photo Disassembly InstructionsOpen the rear cover of the power monitor receiver P.C Operating Procedure PhotosRemoving the electrical box Photo Removing the nozzle assemblyPhoto Removing the vertical vane motor unit Correct positionRemoving the indoor fan motor and the line flow fan Photo Removing the horizontal vane motor PhotoMade in Japan

MSZ-FD09NA specifications

The Mitsubishi Electronics MSZ-FD09NA is a wall-mounted split-type air conditioning unit that exemplifies the brand's commitment to efficiency, comfort, and advanced technology. This unit is designed to provide optimal cooling and heating solutions for residential and light commercial spaces, ensuring a comfortable environment year-round.

One of the standout features of the MSZ-FD09NA is its impressive energy efficiency rating. With a high SEER (Seasonal Energy Efficiency Ratio) rating, it utilizes less energy while maintaining high performance, which can lead to significant cost savings on utility bills. This unit adheres to modern energy conservation standards, making it an environmentally friendly choice that appeals to eco-conscious consumers.

The MSZ-FD09NA is equipped with Mitsubishi’s advanced inverter technology, which allows the compressor to adjust its speed according to the desired temperature. This ensures that energy is used efficiently and that fluctuations in temperature are minimized, resulting in enhanced comfort levels. The inverter technology also helps in reducing noise levels, creating a quieter operation compared to traditional HVAC systems.

Another remarkable characteristic of the MSZ-FD09NA is its sleek and modern design, which seamlessly integrates into various interior décors. The unit is available in a clean white finish, making it an unobtrusive addition to any room. Furthermore, it has a compact design that maximizes floor space while providing powerful performance.

The unit also features cutting-edge air filtration systems designed to purify indoor air. With a multi-stage filtration process, including a catechin filter and an anti-allergen enzyme filter, the MSZ-FD09NA effectively captures dust, allergens, and other airborne particles. This feature is particularly beneficial for those with respiratory issues or allergies, contributing to a healthier living environment.

In addition, the MSZ-FD09NA is compatible with smart control options. Users can control their air conditioner remotely through a smartphone app, making it convenient to adjust settings from anywhere. This smart technology allows for programmable scheduling, enabling users to optimize the unit's operation based on their lifestyle.

In summary, the Mitsubishi Electronics MSZ-FD09NA stands out due to its energy efficiency, advanced inverter technology, modern design, high-quality air filtration, and smart control options, making it an excellent choice for those seeking reliable heating and cooling solutions.