Logitech MSZ-A09NA, OB450 REVISED EDITION-B Troubleshooting, Auto Restart Function, Operation

Page 11

7-3. AUTO RESTART FUNCTION

When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed are memorized by the indoor electronic control P.C. board. The “AUTO RESTART FUNCTION” sets to work the moment power has restored after power failure. Then, the unit will restart automatically.

Operation

If the main power has been cut, the operation settings remain.

After the power is restored, the unit restarts automatically according to the memory. (However, it takes at least 3 minutes for the compressor to start running.)

How to release “AUTO RESTART FUNCTION”

Turn off the main power of the unit.

Solder the Jumper wire JR07 on the indoor electronic control P.C. board. (Refer to 8-7.)

MSZ-A09/12/15/17NA

MSZ-A24NA

MSY-A15/17NA

MSY-A24NA

CN211

CN211

JR07

BZ

CN151 CN112

JR07

BZ

 

 

CN152

 

CN112

 

 

 

 

 

CN101

 

 

 

 

CN151

 

 

 

 

 

NOTE:

•The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote controller.

•If main power is turned OFF or a power failure occurs while AUTO START/STOP timer is active, the timer setting is cancelled.

•If the unit has been OFF with the remote controller before power failure, the auto restart function does not work as the power button of the remote controller is off.

•To prevent breaker OFF due to the rush of starting current, systematize other home appliance not to turn ON at the same time.

•When some air conditioners are connected to the same supply system, if they are operated before power failure, the starting current of all the compressors may flow simultaneously at restart.

Therefore, the special counter-measures are required to prevent the main voltage-drop or the rush of the starting current by adding to the system that allows the units to start one by one.

8 TROUBLESHOOTING

MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSZ-A24NA MSY-A15NA MSY-A17NA MSY-A24NA

8-1. CAUTIONS ON TROUBLESHOOTING

1.Before troubleshooting, check the following

1)Check the power supply voltage.

2)Check the indoor/outdoor connecting wire for miswiring.

2.Take care of the following during servicing

1)Before servicing the air conditioner, be sure to turn OFF the unit first with the remote controller, and then after confirm- ing the horizontal vane is closed, turn OFF the breaker and/or disconnect the power plug.

2)Be sure to turn OFF the power supply before removing the front panel, the cabinet, the top panel, and the electronic control P.C. board.

3)When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the components.

4)When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.

Lead wiring

Housing point

11

Page 10 Page 12
Image 11
Page 10 Page 12
Contents Revised EDITION-C ContentsMSY-A24NA MSZ-A24NAMSZ-A24NA MSY-A24NA AccessoriesPart Names and Functions MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSY-A15NA MSY-A17NASpecification Outlet AIR Speed and Coverage Range Operating RangeUnit inch Outlines and DimensionsMSZ-A09NA MSY-A15NA MSZ-A12NA MSY-A17NA MSZ-A15NA MSZ-A17NAMSZ-A24NA Wiring Diagram MSZ-A17NA MSY-A17NA Refrigerant System DiagramMSZ-A09NA MSZ-A12NA MSZ-A15NA MSY-A15NAP.C. Board Modification for Individual Operation Service FunctionsTimer Short Mode How to modify the remote controller P.C. boardOperation TroubleshootingHow to release Auto Restart Function Auto Restart FunctionOutdoor Unit MXZ series Troubleshooting procedureHow to replace batteries Information for Multi System AIR ConditionerFailure Mode Recall Function Indoor unit failure mode table Start Instruction of Troubleshooting15/17 Troubleshooting Check TableMXZ type Trouble Criterion of Main PartsCheck of indoor fan motor Troubleshooting FlowMSZ-A09/12/15/17NA MSY-A15/17NA MSZ-A24NA MSY-A24NAIndoor electronic control P.C.Board How to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios SW P.C. board Test point diagram and voltagePower monitor receiver P.C. board Indoor electronic control P.C. boardDisplay P.C. board Receiver Board MSZ-A24NA MSY-24NARemoving the panel Photo Disassembly InstructionsRemoving the electrical box Photo Operating Procedure PhotosRemoving the indoor fan motor and the line flow fan Photo Removing the horizontal vane motor unit PhotoBoard and the display P.C. board MSZ-A24NA MSY-A24NA Operating Procedure PhotosRemoving the front panel Removing the electronic control P.C. board, the receiverRemoving the line flow fan and the indoor fan motor Removing the vane motorAccessory and Remote Controller Parts ListSwitch Holder Nozzle AssemblyPower Monitor Receiver Board Holder Room TemperatureUnion Liquid AIR Cleaning Filter ANTI-ALLERGY Enzyme FilterIndoor Heat Exchanger Union GASSee Indoor Unit Functional Parts and Electrical Parts MAC-2300FT Controller KM07L Catechin AIR Filter Right AIR Cleaning MAC-415FT-EMSZ-A MSY-A Remote KM06CIndoor Coil CoverElectronic Control P.CE12 155 Ø1/2 E12 151 Indoor HeatExchanger E12 815PC/ SET CatchScrew CAP Catechin AIR FilterVane Motor Horizontal AssemblyRemote Controller KM06D Vane Motor VerticalAIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Indoor Unit Display Section Microprocessor ControlFAN Operation MSY Cool OperationDRY Operation Heat Operation MSZFuzzy control Auto Change Over ··· Auto Mode Operation MSZMode selection Upward Auto Vane OperationMSZ-A09/12/15/17 MSY-A15/17 MSZ-A24 MSY-A243 4 Swing 5 Vertical vane MSZ-A24, MSY-A24Program Timer Timer OperationMade in Japan Changing temperature indication F/CEMERGENCY/TEST Operation MSZ-ANA- MSY-ANA

MSZ-A09NA, OB450 REVISED EDITION-B specifications

The Logitech MSZ-A09NA, OB450 Revised Edition-B stands as a testament to professional-grade technology, designed for both home and office productivity. This advanced device combines functionality with sleek design, making it an essential tool for users demanding efficiency and performance.

At its core, the Logitech MSZ-A09NA is equipped with state-of-the-art input technologies that enhance user experience. Whether you are a gamer, an avid typist, or a creative professional, this model caters to diverse needs. The mouse features an ergonomic shape that allows for hours of comfortable use, while the advanced optical sensor ensures precision tracking on various surfaces.

One of its standout features is the customizable button layout. Users can program each of the additional buttons to suit specific tasks, making it an ideal choice for gamers who require quick access to critical commands or professionals who benefit from application shortcuts. The mouse supports multiple profiles, allowing for seamless transitions between different user preferences.

Connectivity is another significant strength of the Logitech MSZ-A09NA. The device offers both wired and wireless options, ensuring versatility for any setup. The wireless connection is powered by Logitech’s advanced technology, providing a reliable link without the clutter of cables. With a battery life that can last weeks on a single charge, this mouse eliminates the need for frequent interruptions.

Moreover, the OB450 Revised Edition-B features RGB lighting that can be customized through Logitech’s software. This not only enhances aesthetic appeal but also allows users to create personalized lighting effects that can match their workspace or reflect their personal style.

Durability is a hallmark of the Logitech MSZ-A09NA, built with high-quality materials that can withstand extensive daily use. The mouse buttons have been rigorously tested to ensure they stand the test of time, making it a worthy investment for any user.

In summary, the Logitech MSZ-A09NA, OB450 Revised Edition-B excels in providing a blend of comfort, customization, and connectivity. Its thoughtful design and advanced technology make it an exceptional choice for anyone looking to enhance their computing experience. Whether for professional work, gaming, or everyday tasks, this mouse is equipped to meet the demands of modern users, offering both reliability and style.
Top Page Image Contents