Mitsumi electronic PKA-A18HA4, PKA-A12HA4 service manual

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Contents Parts Catalog OCB483 ContentsRemote controller Optional parts Service Ref PUZ-A18/24/36NHA4Reference Manual PUZ-A18/24/36NHA4-BS PUY-A12/18/24/36NHA4Always Observe for Safety Safety PrecautionPart Names and Functions Refrigerant recovery equipmentOperation Section Display SectionMode Select button Operation Mode displayTemperature setting display Timer displayService Ref SpecificationsPKA-A12HA4 PKA-A18HA4 Noise Criterion CurvesUnit inch mm Outlines and DimensionsTB5 Wiring DiagramHeat exchanger Refrigerant System DiagramTroubleshooting TroubleshootingMALFUNCTION-DIAGNOSIS Method by Remote Controller Wired remote controllerCase of trouble during operation U9,UH Unit’s power terminal block L1, L2, GR Wired remote controller LED 1, 2 PCB in outdoor unitAppear even when operation Remote controller wire shortSELF-DIAGNOSIS Action Table Operating Pipe temperatureRemote controller transmission Cause Countermeasure Pipe temperature thermistorErrorE0/signal receiving errorE4 Condenser-Evaporator TH5Error Transmitting error Error Signal receiving errorRemote controller control board Indoor/outdoor unit communicationPhenomena Cause Countermeasure 1Upward/downward vane Troubleshooting by Inferior PhenomenaPerformance failure ControllerEmergency Operation When the remote controller cannot be usedHeat pump type Cooling Only typeLower temperature HOW to Check the Parts PKA-A12HA4 PKA-A18HA4Condenser/evaporator temperature ThermistorSensor signal check Test Point Diagram Functions of DIP Switch and Jumper Wire Operation Special FunctionRotation function and Back-up function Outline of functions System constraintRotation setting Request Code List2nd stage cut-in setting 2nd unit Cut-outSetting method of each function by wired remote controller How to connectBACK-UP Heating Function CN152 Outline of functionsOperation Procedure Photos & Illustrations Disassembly ProcedurePhoto Forward to remove the front panel. See PhotoOperation Procedure Photos Operation Procedure Removing the Nozzle Assembly with Vane PhotoVane Motor and Drain Hose Disconnect the connector CN20 on the indoor controller Remove the room temperature thermistorRemove the electrical box cover BoardPage Page Page New publication, effective Nov

PKA-A18HA4, PKA-A12HA4 specifications

Mitsumi Electric Company is known for its innovations in the electronic components sector, and among its noteworthy products are the PKA-A18HA4 and PKA-A12HA4 components. Both models represent advancements in their respective categories, characterized by reliability, high performance, and cutting-edge technology.

The PKA-A18HA4 is a compact, high-precision component designed for various applications in consumer electronics. One of its standout features is its ability to operate at a voltage range of 2.7V to 5.5V, making it versatile for different devices. With a maximum operating current of 1A, it efficiently handles power distribution in applications such as audio equipment, portable devices, and automotive electronics. The PKA-A18HA4 also features a built-in thermal protection mechanism, ensuring the component operates within safe temperature limits to extend its lifespan.

Similarly, the PKA-A12HA4 is tailored for applications requiring low power consumption without compromising performance. It operates within a voltage range of 2.4V to 3.6V, making it ideal for battery-operated devices. This model not only offers an excellent balance between power efficiency and performance but also incorporates a range of built-in safety features, including over-voltage and short-circuit protection. These features enhance the reliability of devices utilizing the PKA-A12HA4 in environments where electrical fluctuations may occur.

Both models are also characterized by their compact footprint, allowing for easy integration into various electronic systems. Their designs prioritize minimal electromagnetic interference, which is crucial for maintaining signal integrity in sensitive applications. Additionally, they are manufactured using advanced semiconductor technologies that ensure high durability and robustness.

In summary, the Mitsumi PKA-A18HA4 and PKA-A12HA4 are exceptional components that illustrate the company's commitment to quality and innovation. Their unique features, including wide operating voltage ranges, safety mechanisms, and compact designs, make them suitable for a variety of applications across multiple industries. As technology continues to advance, these products embody the standards of performance and reliability that consumers expect from modern electronic components.