Mitsumi electronic PLA-A42AA, PLA-A30AA, PLA-A36AA, PLA-A12AA, PLA-A24AA Removing the fan motor

Page 31

 

OPERATING PROCEDURE

PHOTOS & ILLUSTRATIONS

 

 

 

 

4. Removing the fan motor

Photo 3

 

 

Fan motor

 

(1)

Remove the bell mouth.(See photo 1)

 

 

 

 

(2)

Remove the electrical box.(See photo 2)

 

 

 

(3)

Remove the turbo fan nut.

 

 

 

(4)

Pull out the turbo fan.

 

 

 

(5)

Disconnect the connector of the fan motor lead wire.

 

 

 

(6)

Remove the 4 nuts of the fan motor.

 

 

 

Nut

 

 

 

Nut

Connector

 

 

 

 

5. Removing the pipe temperature thermistor

Photo 4

Pipe temperature thermistor

and condenser evaporator temperature thermistor

 

 

 

(1)

Remove the bell mouth.(See photo 1)

 

 

 

(2)

Remove the electrical box.(See photo 2)

 

 

 

(3)

Remove the turbo fan.

 

 

 

(4)

Remove the screw of the service panel.

 

 

 

(5)

Remove the service panel.

 

 

 

(6) Remove the pipe temperature thermistor which is inserted into the holder installed to the thin copper pipe.

(7) Disconnect the 2-pin white connector.(CN21)

[Condenser/ evaporator temperature thermistor]

(8)

Remove the drain pan. (See Photo 6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(9)

Remove the thermistor which is installed into the holder to

 

 

 

 

Service access

 

 

 

 

 

 

 

 

 

the indoor coil.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(10) Disconnect the 2-pin black connector. (CN29)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6. Removing the panel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2

 

 

 

Corner

 

 

 

 

 

 

 

 

(1)

Remove the air intake grille.(See figure 1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw panel

Panel

 

 

Corner panel (See figure 2)

 

 

 

 

 

 

 

(1)

Remove the corner screw.

Corner

 

 

 

 

 

 

 

 

 

 

 

 

(2)

Slide the corner panel to the direction of the arrow3, and

panel

 

 

 

 

 

 

 

 

 

 

 

 

 

remove the corner panel.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Panel (See photo 5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Photo 5

 

 

 

 

 

 

 

 

 

 

 

 

(1)

Disconnect the connector that connects with the unit.

 

 

 

 

 

 

 

 

 

 

 

 

(2)

Remove the 2 screws from the panel and loosen another

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 screws, which fix to the oval holes, have different diame-

Connector

 

 

 

 

Screw

 

 

 

 

 

 

 

ters.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(3)

Rotate the panel a little to remove the screws.

 

Screw

 

 

 

Panel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. Removing the drain pan

Photo 6

 

 

Screw

Screw

 

 

 

 

 

 

 

 

 

 

 

 

(1)

Remove the panel. (See photo 5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(2)

Remove the drain plug (Larger one), drain the remaining

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

water in the drain pan.

Drain pan

 

 

 

 

 

 

 

 

 

 

 

 

(3)

Remove the corner cover. (2 screws)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(4)

Remove the bell mouth (See photo 1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(5)

Remove the electrical box. (See photo 2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(6)

Remove the lead wire holder. (1 screw)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(7)

Remove the 4 screws and pull out the drain pan.

Screw

 

 

 

 

 

 

 

 

 

 

 

 

 

w Pull out the left and right of the pan gradually.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw

 

Be careful not to crack or damage the pan.

Lead

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

holder

Drain plug(Larger one)

Corner cover

31

Image 31
Contents Revised EDITION-B ContentsPLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AA Technical Data BookTechnical Changes Reference ManualAlways Observe for Safety Safety PrecautionAdditional refrigerant charge Indoor Unit Part Names and FunctionsDisplay Section Wireless remote controller Service Ref SpecificationsPLA-A24AA/ PLA-A24AA1Single phase,60Hz, 208/230V PLA-A36AA/ PLA-A36AA1Single phase,60Hz, 208/230V PLA-A30AA/ PLA-A30AA1Single phase,60Hz, 208/230VPLA-A42AA/ PLA-A42AA1Single phase,60Hz, 208/230V PLA-A36AA Noise Criterion CurvesPLA-A12AA PLA-A12AA1Unit inchmm Outlines and DimensionsPlease set the voltage using Wiring DiagramHeat exchanger Refrigerant System DiagramTroubleshooting TroubleshootingCase of trouble during operation MALFUNCTION-DIAGNOSIS Method by Remote ControllerOutput pattern B Only A-CONTROL Please Wait SELF-DIAGNOSIS Action Table Cause Countermeasure Freezing/overheating protection is Pipe temperatureWorking ErrorE3/signal receiving errorE5 Cause Countermeasure Pipe temperature thermistorRemote controller transmission ErrorE0/signal receiving errorE4Indoor controller board Error Signal receiving errorError Transmitting error Remote controller control boardPly system Troubleshooting by Inferior PhenomenaPhenomena Cause Countermeasure Is offPerformance failure 4Receiver for wireless remoteIs blinking 3Upward/downward vaneEmergency Operation Fan motor MF Thermistor for lower temperature Test Point Diagram Indoor controller board SW2 Functions of DIP Switch and Jumper WireOperating Procedure Photos & Illustrations Disassembly ProcedureRemoving the fan motor Removing the drain pump and drain sensor Qty Wiring RecomPLA-A·AA Functional and Structural Parts PLA-A36AA98 PLA-A42AA Mended 12, 18, 24 Symbol Qty556 Functional and Structural Parts PLA-A36AA PLA-A42AA30/36/42AA1 RoHS Parts ListPLA-A18AA1 PLA-A24AA1PLA-A30AA1 WiringSymbol Qty Functional and Structural PartsPLA-A36AA198 RoHS Parts No Parts Name Remarks Functional and Structural Parts PLA-A36AA1 PLA-A42AA1Page Made in Japan

PLA-A30AA, PLA-A42AA, PLA-A18AA, PLA-A12AA, PLA-A24AA specifications

Mitsumi Electric, a leading manufacturer in the electronic components industry, offers a diverse range of products tailored to meet various application needs. Among the offerings are the PLA series devices: PLA-A36AA, PLA-A24AA, PLA-A12AA, PLA-A18AA, and PLA-A42AA. These components are renowned for their cutting-edge features, robust technologies, and versatile characteristics, making them essential in modern electronics.

The PLA-A36AA is recognized for its high-speed operation and low power consumption, ideal for applications needing efficient energy usage. It features an advanced thermal management system to ensure optimal performance even in high-temperature environments. The integrated circuitry minimizes noise interference, providing clearer signal processing essential for audio and communication devices.

Moving on to the PLA-A24AA, this model stands out due to its compact design and reliability. It is particularly suited for space-constrained applications without compromising performance. The PLA-A24AA employs surface-mount technology, making it easier to integrate into various electronic assemblies. Its enhanced durability against mechanical stress and environmental conditions ensures longevity and stable operation.

The PLA-A12AA is engineered for versatile applications, offering flexibility in various settings, from consumer electronics to industrial machinery. With its user-friendly interface and programmable features, it allows for extensive customization, catering to specific user requirements. Additionally, its energy-efficient design contributes to sustainable practices in electronics manufacturing.

The PLA-A18AA is celebrated for its high-frequency performance, making it a popular choice for telecommunications and data transmission applications. This model incorporates advanced filtering technologies to facilitate reliable signal processing, an essential feature in today's high-speed internet and communication networks.

Finally, the PLA-A42AA combines robust construction with high-performance metrics, designed for heavy-duty applications in automotive and industrial environments. Its resistance to extreme conditions, including temperature fluctuations and vibrations, ensures that it performs reliably under demanding circumstances.

Through a commitment to innovation and quality, Mitsumi Electric’s PLA series exemplifies state-of-the-art technology in electronic components, catering to a broad spectrum of industry needs while promoting efficiency and reliability. These models reflect the evolution of electronic design, adapting to the fast-paced demands of modern technology, making them invaluable assets in any tech-focused endeavor.