Mitsubishi Electronics PCA-A24GA service manual Removing the heat exchanger

Page 30

 

OPERATING PROCEDURE

PHOTOS

 

 

 

12. Removing the heat exchanger

Photo 11

 

(1)

Remove the air intake grille. (See the figure 1)

 

 

 

(2)

Remove the beam.

 

 

(3)

Remove the side panel (right and left). (See the figure 3)

 

 

(4)

Disconnect the relay connector of the pipe thermistor.

 

 

(5)

Remove the under panel. (See the photo 7)

Pipe

 

(6)

Remove the drain pan. (See the photo 8)

support

 

 

 

(7)

Unscrew the screw of the pipe cover, and remove the

 

 

 

pipe cover.

Screws

 

(8)

Unscrew the screw of the pipe support, and remove the

 

 

pipe support.

 

 

(9)

Unscrew the screw of the heat exchanger, and remove

 

 

 

the heat exchanger.

Screws

 

 

Remove the heat exchanger with care. Since this is quite

Heat

 

heavy, removing work should be done with more than 2

Pipe cover

exchanger

 

 

 

people.

 

 

 

wWeight of heat exchanger : Approx. 5.3kg

 

 

 

 

 

 

30

Page 29 Page 31
Image 30
Page 29 Page 31
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.
Top Page Image Contents