Mitsubishi Electronics PCA-A24GA service manual Display Section

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●Wired remote controller

Display Section

For purposes of this explanation,

Day-of-Week

all parts of the display are shown

Shows the current day of the week.

as lit. During actual operation, only

 

the relevant items will be lit.

Time/Timer Display

Shows the current time, unless the simple or Auto Off timer is set.

If the simple or Auto Off timer is set, the time to be switched off is shown.

Identifies the current operation

Shows the operating mode, etc. *Multilanguage display is available.

 

TIME SUN MON TUE WED THU FRI SAT

 

TIMER

Hr

ON

 

AFTER

AFTER

OFF

 

ERROR CODE

 

FUNCTION

 

˚F˚C

 

FILTER

“Centrally Controlled” indicator

˚F˚C

 

 

WEEKLY

Indicates that operation from the

ONLY1Hr.

 

SIMPLE

 

AUTO OFF

remote controller has been prohib-

 

 

 

ited by a master controller.

 

 

 

 

 

Up/Down Air Direction indica-

 

Room Temperature display

“Timer is Off” indicator

 

 

 

 

tor

 

Shows the room temperature. The room

 

 

 

 

Shows the direction of the

 

temperature display range is 46–102°F.

Indicates that the timer is off.

 

 

 

outcoming airflow.

 

The display blinks if the temperature

 

 

 

 

 

 

 

is less than 46°F or 102°F or more.

 

 

 

 

 

“One Hour Only” indicator

 

Louver display

 

 

 

 

 

Displayed if the airflow is set to

 

Temperature Setting

 

 

 

Low or downward during COOL

 

Indicates the action of the swing louver.

 

 

 

or DRY mode. (Operation varies

 

Does not appear if the louver is not

Shows the target temperature.

 

 

 

according to model.)

 

running.

 

 

 

 

 

The indicator goes off in one hour,

 

(Power On indicator)

 

 

 

 

 

at which time the airflow direction

 

 

 

 

 

 

also changes.

 

Indicates that the power is on.

“Sensor” indication

Displayed when the remote controller sensor is used.

“Locked” indicator

Indicates that remote controller but- tons have been locked.

“Clean The Filter” indicator

To be displayed on when it is time to clean the filter.

Timer indicators

The indicator comes on if the corre- sponding timer is set.

Fan Speed indicator

Shows the selected fan speed.

Ventilation indicator

Appears when the unit is running in Ventilation mode.

Note:

●“PLEASE WAIT” message

This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure.

●“NOT AVAILABLE” message

This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have).

If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as far as any of the indoor units is equipped with the function.

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Contents PCA-A24GA ContentsRevised EDITION-B PCA-A30GATechnical Data Book Technical ChangesReference Manual Safety Precaution Always Observe for SafetyWhen charging directly from cylinder Additional refrigerant chargePart Names and Functions Indoor UnitDisplay Section Temperature setting display Operation Mode displayMode Select button Timer displayPCA-A30GA, PCA-A30GA1Single phase, 60Hz, 208/230V SpecificationsService Ref PCA-A36GA, PCA-A36GA1Single phase, 60Hz, 208/230VPCA-A30GA1 Noise Criterion CurvesPCA-A24GA1 PCA-A36GA1Outlines and Dimensions PCA-A24GA PCA-A24GA1 PCA-A30GA PCA-A30GA1PCA-A36GA PCA-A42GA PCA-A36GA1 PCA-A42GA1 Unit inchmmWiring Diagram Indoor unit Installation ManualRefrigerant System Diagram Heat exchangerTroubleshooting TroubleshootingSELF-DIAGNOSIS Action Table Pipe temperature Cause Countermeasure Freezing/overheating protection isWorking ErrorE0/signal receiving errorE4 Cause Countermeasure Pipe temperature thermistorRemote controller transmission ErrorE3/signal receiving errorE5Remote controller control board Error Signal receiving errorError Transmitting error Indoor controller boardIs off Troubleshooting by Inferior PhenomenaPhenomena Cause Countermeasure Ply system3Upward/downward vane 4Receiver for wireless remoteIs blinking Performance failurePage Vane motor MV Test Point Diagram Between 1 to 3 12.6-13.7V DC Pin1 +Connect to the indoor controller board CN2D PCA-A36GA PCA-A36GA1 Functions of DIP Switch and Jumper Wire ModelsRemoving the air intake grille Disassembly ProcedureOperating Procedure Photos & Illustrations Removing the electrical boxRemoving the sirocco fan Operating ProcedureRemoving the fan motor MF Remove the air intake grilleRemoving the Indoor coil thermistor TH2/TH5 Operating Procedure PhotosRemoving the vane motor MV Removing the Under panelRemove the intake grille. See the figure Removing the drain panRemoving the guide vane Removing the Auto vaneRemoving the heat exchanger R01 29J 130 Parts No Parts Name SpecificationsDrawing No R01 35J 130Structural Part PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA Electrical Parts PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA Remarks Parts Name SpecificationsRoHS Parts NoStructural Part PCA-A24GA1PCA-A30GA1PCA-A36GA1PCA-A42GA1 Wiring Recom Electrical Parts PCA-A24GA1PCA-A30GA1PCA-A36GA1PCA-A42GA1RoHS Qty/ set

PCA-A24GA specifications

Mitsubishi Electronics has long been a pioneer in the field of industrial automation, and the PCA-A24GA is a notable addition to its line of high-performance programmable controllers. This compact yet powerful device is designed to optimize processes and increase efficiency across various applications, making it a preferred choice for industries ranging from manufacturing to building automation.

One of the standout features of the PCA-A24GA is its versatility. The controller offers a wide range of input/output (I/O) options, enabling seamless integration with various sensors and actuators. With 24 digital input channels and 16 relay output channels, the PCA-A24GA can handle complex control tasks while maintaining a compact footprint. This flexibility is further enhanced by its support for analog inputs and outputs, allowing for greater precision in monitoring and controlling processes.

The PCA-A24GA is built with cutting-edge technologies that ensure robust performance. It employs Mitsubishi's advanced processing algorithms, which enhance real-time data processing capabilities. This ensures responsive control, reducing lag and improving overall system performance. Additionally, the controller features an intuitive programming environment, making it accessible to both seasoned engineers and those new to automation programming.

Communications are another strong suit of the PCA-A24GA. It offers multiple communication protocols, including Ethernet and RS-232, which allow for easy connectivity to various devices and systems. This ensures that the PCA-A24GA can be integrated into existing networks without significant modifications, facilitating smoother transitions and upgrades.

In terms of reliability and durability, the PCA-A24GA excels. Designed to operate in demanding environments, it is built to withstand temperature fluctuations, vibrations, and dust, which is essential for industrial settings. The controller's long operational life reduces maintenance costs and downtime, contributing to improved productivity.

Energy efficiency is also a key characteristic of the PCA-A24GA. Mitsubishi Electronics has designed this controller with eco-friendly technologies, making it suitable for organizations looking to reduce their carbon footprint while maintaining high levels of productivity.

In summary, the Mitsubishi Electronics PCA-A24GA stands out with its versatile I/O options, advanced processing capabilities, comprehensive communication protocols, and robust build. These features make it an excellent choice for industries seeking reliable and efficient automation solutions, securing Mitsubishi's reputation as a leader in the field.
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