Mitsubishi Electronics MSY-A17NA, MSY-A24NA, MSY-A15NA Service Functions, Timer Short Mode, J1 J2

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SERVICE FUNCTIONS

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

MSY-A15NA MSY-A17NA MSY-A24NA

7-1. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS the indoor electronic control P.C. board. The time will be shortened as follows. (Refer to 8-7.)

Set time : 1-minute 1-second

Set time : 3-minute 3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is shortened by short circuit of JPG and JPS.)

7-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

A maximum of 4 indoor units with wireless remote controllers can be used in a room.

In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be modified according to the number of the indoor unit.

How to modify the remote controller P.C. board

Remove batteries before modification.

The board has a print as shown below :

 

NOTE : For modification, take out

 

the batteries and press the

 

OPERATE/STOP(ON/OFF)

 

button twice or 3 times at

 

first.

 

After finish modification,

 

put back the batteries then

J1 J2

press the RESET button.

The P.C. board has the print “J1” and “J2”. Solder “J1” and “J2” according to the number of indoor unit as shown in Table 1. After modification, press the RESET button.

Table 1

 

1 unit operation

2 units operation

3 units operation

4 units operation

 

 

 

 

 

No. 1 unit

No modification

Same as at left

Same as at left

Same as at left

 

 

 

 

 

No. 2 unit

Solder J1

Same as at left

Same as at left

 

 

 

 

 

No. 3 unit

Solder J2

Same as at left

 

 

 

 

 

No. 4 unit

Solder both J1 and J2

How to set the remote controller exclusively for particular indoor unit

After you turn the breaker ON, the first remote controller that sends the signal to the indoor unit will be regarded as the remote controller for the indoor unit.

The indoor unit will only accept the signal from the remote controller that has been assigned to the indoor unit once they are set.

The setting will be cancelled if the breaker has turned off, or the power supply has shut down. Please conduct the above setting once again after the power has restored.

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Contents Contents Revised EDITION-ATechnical Changes MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSZ-A24NA MSY-A24NA AccessoriesPart Names and Functions MSY-A15NA MSZ-A24NA MSY-A17NA MSY-A24NASpecification Operating Range Outlet AIR Speed and Coverage RangeMSZ-A09NA MSY-A15NA MSZ-A12NA MSY-A17NA MSZ-A15NA MSZ-A17NA Outlines and DimensionsUnit inch MSZ-A24NA Wiring Diagram MSZ-A15NA MSY-A15NA Refrigerant System DiagramMSZ-A09NA MSZ-A12NA MSZ-A17NA MSY-A17NAHow to modify the remote controller P.C. board Service FunctionsTimer Short Mode P.C. Board Modification for Individual OperationAuto Restart Function TroubleshootingOperation Information for Multi System AIR Conditioner Troubleshooting procedureHow to replace batteries Outdoor Unit MXZ seriesFailure mode recall function Those figures show about MSZ-A09/12/15/17Indoor unit failure mode table Instruction of troubleshooting OperationTroubleshooting check table Indicates abnormalitiesTrouble criterion of main parts MXZ typeTroubleshooting flow Check of indoor fan motorCheck of remote controller and receiver P.C. board Indoor electronic control P.C.Board How to check mis-wiring and serial signal error Electromagnetic noise enters into TV sets or radios Indoor electronic control P.C. board Test point diagram and voltagePower monitor receiver P.C. board SW P.C. boardMSZ-A24NA MSY-24NA Display P.C. board Receiver BoardDisassembly Instructions Removing the panel PhotoOperating Procedure Photos Photo Removing the electrical boxFan Removing the horizontal vane motor unit PhotoRemoving the indoor fan motor and the line flow Photo Motor bandRemoving the electronic control P.C. board, the receiver MSZ-A24NA MSY-A24NA Operating Procedure PhotosRemoving the front panel Board and the display P.C. boardRemoving the vane motor Removing the line flow fan and the indoor fan motorParts List Accessory and Remote ControllerBearing Mount Nozzle AssemblySwitch Holder Sleeve BearingAIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Screw CAP Front Panel AssemblyCatch GrilleIndoor Unit Functional Parts and Electrical Parts AIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Catechin AIR Filter Right AIR Cleaning Filter MAC-415FT-E E12 751 RoHSQty/unit Part name E12 A54 235RoHS Part name E12 A54 E12 A5610 G E12 888 007 Lamp Panel Diagram Symbol Wiring Qty/unit Remarks E1211 G E12 A58 620 Indoor Heat Exchanger MV2 MV1 E12 A58 300 Indoor FAN Motor Assembly W111 G E12 408 303 Vane Motor Horizontal Right & Left UP & DownAIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Microprocessor Control Indoor Unit Display SectionHeat Operation MSZ Cool OperationDRY Operation FAN d Operation MSYMode selection Auto Change Over ··· Auto Mode Operation MSZFuzzy control MSZ-A24 MSY-A24 Auto Vane OperationMSZ-A09/12/15/17 MSY-A15/17 Upward3 4 Swing 5 COOL/DRY HeatTimer Operation Program TimerEMERGENCY/TEST Operation Made in Japan
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MSY-A15NA, MSZ-A09NA, MSZ-A17NA, MSZ-A12NA, MSZ-A24NA specifications

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