Mitsubishi Electronics MSZ-FD09NA service manual Program Timer

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8-8. TIMER OPERATION

1.How to set the time

(1)Check that the current time is set correctly.

NOTE : Timer operation will not work without setting the current time. Initially “0:00 AM” blinks at the current time dis- play of TIME MONITOR, so set the current time correctly with CLOCK SET button.

How to set the current time

(a)Press the CLOCK set button.

(b)Press the TIME SET buttons ( and ) to set the current time.

Each time FORWARD button ( ) is pressed, the set time increases by 1 minute, and each time

BACKWARD button ( ) is pressed, the set time decreases by 1 minute.

Pressing those buttons longer, the set time increases/decreases by 10 minutes.

(c)Press the CLOCK set button.

(2)Press OPERATE/STOP (ON/OFF) button to start the air conditioner.

(3)Set the time of timer.

ON timer setting

(a)Press ON TIMER button ( ) during operation.

(b)Set the time of the timer using TIME SET buttons ( and ).

OFF timer setting

(a)Press OFF TIMER button ( ) during operation.

(b)Set the time of the timer using TIME SET buttons ( and ).

Each time FORWARD button ( ) is pressed, the set time increases by 10 minutes; each time BACKWARD but-

ton ( ) is pressed, the set time decreases by 10 minutes.

2. To release the timer

To release ON timer, press ON TIMER button ( ).

To release OFF timer, press OFF TIMER button ( ).

TIMER is cancelled and the display of set time disappears.

PROGRAM TIMER

OFF timer and ON timer can be used in combination. The timer of the set time that is reached first will operate first.

” and “ ” display shows the order of OFF timer and ON timer operation.

(Example 1) The current time is 8:00 PM.

The unit turns off at 11:00 PM, and on at 6:00 AM.

(Example 2) The current time is 11:00 AM.

The unit turns on at 5:00 PM, and off at 9:00 PM.

PM

AM

PM

PM

NOTE : If the main power is turned OFF or a power failure occurs while ON/OFF timer is active, the timer setting is can- celled. As these models are equipped with an auto restart function, the air conditioner starts operating with timer cancelled when power is restored.

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Contents MSZ-FD09NA MSZ-FD12NA Specification has been corrected New model Accessories Part Names and FunctionsPower supply Phase, Hz 208/230 Weight External finishRemote controller Indoor modelOperating Range Outlet AIR Speed and Coverage RangeOutlines and Dimensions Unit inchAir Air outWiring Diagram Refrigerant flow in cooling Refrigerant flow in heating Refrigerant System DiagramUnitinch Service Functions Timer Short ModeHow to modify the remote controller P.C. board P.C. Board Modification for Individual OperationOperation How to release Auto Restart FunctionAuto Restart Function Microprocessor Control Refer toLamp lights during operation Lamp blinks in abnormal conditionHeat Operation Cool OperationDRY Operation Auto Change Over ··· Auto Mode Operation Mode selectionAuto Vane Operation Outdoor Unit MXZ seriesDirection Feet, set the horizontalVertical vane Area Setting See Control OperationSee Sensor Enlarged view of i-see SensorLighted Not lighted DaytimeNighttime Cold area Operation and operating range Center ·····Program Timer EMERGENCY/TEST Operation Minute Time Delay OperationChanging temperature indication F/C Troubleshooting Before troubleshooting, check the followingLead wiring Housing point Troubleshooting procedure How to replace batteriesFailure Mode Recall Function OFFIndoor unit failure mode table PowerInstruction of Troubleshooting Troubleshooting Check Table Lighted BlinkingArea R Power Trouble Criterion of Main Parts MSZ-FD09NAMSZ-FD12NA Troubleshooting Flow Check of indoor fan motorPage Replace the horizontal vane motor, How to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios SW P.C. Board Test Point Diagram and VoltageIndoor electronic control P.C. board Power monitor receiver P.C. board Monitor P.C. board Disassembly Instructions Removing the panel PhotoOperating Procedure Photos Open the rear cover of the power monitor receiver P.CRemoving the nozzle assembly Removing the electrical box PhotoPhoto Removing the vertical vane motor unit Correct positionRemoving the horizontal vane motor Photo Removing the indoor fan motor and the line flow fan 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.