Mitsumi electronic PLA-A30AA, PLA-A42AA, PLA-A36AA, PLA-A12AA, PLA-A24AA Emergency Operation

Page 24

10-5. EMERGENCY OPERATION

10-5-1. When wireless remote controller has troubles or its battery is exhausted

1.Emergency operation is available in such a case using emergency operation switch equipped on the grille.

2.To start operation

Cooling Operation·······Press (Cooling) switch.

Heating Operation·······Press (Heating) switch.

wWhen the unit starts operating, the operation lamp is lit.

Emergency operation switch (cooling)

Emergency operation switch (heating)

Receiver

Operation lamp

 

 

 

 

wEmergency operation will be performed as follows.

 

 

Mode

 

Cooling

 

Heating

 

 

Set temperature

 

24:, 75-F

 

24:, 75-F

Fan speed

 

High

 

High

 

 

 

 

 

Airflow direction

 

Horizontal (30deg)

 

Downward (70deg)

3.To stop operation

Press either emergency operation switch (cooling/heating).

10-5-2. When wired remote controller or indoor unit microcomputer has troubles

1.If other defects are not found when trouble occurs, emergency operation starts as the indoor controller board switch (SWE) is set to ON.

During the emergency operation, the indoor unit is as follows;

(1) Indoor fan high speed operation

(2) Drain pump operation

2.For emergency operation of cooling or heating

When emergency operation for COOL or HEAT, setting of the switch (SWE) in the indoor controller board and outdoor unit emergency operation are necessary.

3.Check items and notices as the emergency operation

(1)Emergency operation cannot be used as follows;

When the outdoor unit is something wrong.

When the indoor fan is something wrong.

When drain overflow protection operation is detected during self-diagnosis. (Error code : P5)

(2)Emergency operation will be serial operation by the power supply ON/OFF. ON/OFF or temperature, etc. adjustment is not operated by the remote controller.

(3)Do not operate for a long time as cold air is blown when the outdoor unit starts defrosting operation during heat emer- gency operation.

(4)Cool emergency operation must be within 10 hours. Otherwise, heat exchanger of indoor unit may get frosted.

(5)After completing the emergency operation, return the switch setting, etc. in former state.

(6)Since vane does not work at emergency operation, position the vane slowly by hand.

24

Image 24
Contents Contents Revised EDITION-BTechnical Data Book Technical ChangesReference Manual PLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AASafety Precaution Always Observe for SafetyAdditional refrigerant charge Part Names and Functions Indoor UnitDisplay Section Wireless remote controller Specifications Service RefPLA-A24AA/ PLA-A24AA1Single phase,60Hz, 208/230V PLA-A30AA/ PLA-A30AA1Single phase,60Hz, 208/230V PLA-A36AA/ PLA-A36AA1Single phase,60Hz, 208/230VPLA-A42AA/ PLA-A42AA1Single phase,60Hz, 208/230V Noise Criterion Curves PLA-A12AAPLA-A12AA1 PLA-A36AAOutlines and Dimensions Unit inchmmWiring Diagram Please set the voltage usingRefrigerant System Diagram Heat exchangerTroubleshooting TroubleshootingMALFUNCTION-DIAGNOSIS Method by Remote Controller Case of trouble during operationOutput pattern B Only A-CONTROL Please Wait SELF-DIAGNOSIS Action Table Pipe temperature Cause Countermeasure Freezing/overheating protection isWorking Cause Countermeasure Pipe temperature thermistor Remote controller transmissionErrorE0/signal receiving errorE4 ErrorE3/signal receiving errorE5Error Signal receiving error Error Transmitting errorRemote controller control board Indoor controller boardTroubleshooting by Inferior Phenomena Phenomena Cause CountermeasureIs off Ply system4Receiver for wireless remote Is blinking3Upward/downward vane Performance failureEmergency Operation Fan motor MF Thermistor for lower temperature Test Point Diagram Indoor controller board Functions of DIP Switch and Jumper Wire SW2Disassembly Procedure Operating Procedure Photos & IllustrationsRemoving the fan motor Removing the drain pump and drain sensor Wiring Recom QtyPLA-A·AA Functional and Structural Parts PLA-A36AA98 PLA-A42AA 12, 18, 24 Symbol Qty MendedFunctional and Structural Parts PLA-A36AA PLA-A42AA 556RoHS Parts List 30/36/42AA1Wiring Symbol QtyFunctional and Structural Parts PLA-A18AA1 PLA-A24AA1PLA-A30AA1PLA-A36AA198 RoHS Parts No Parts Name Functional and Structural Parts PLA-A36AA1 PLA-A42AA1 RemarksPage 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.