Mitsubishi Electronics PKA-A30KA4.TH Reference Manual, Remote controller Optional parts

Page 2

1 REFERENCE MANUAL

OUTDOOR UNIT SERVICE MANUAL

Service Ref.

PUZ-A24/30/36NHA4 PUZ-A24/30/36NHA4-BS PUY-A24/30/36NHA4 PUY-A24/30/36NHA4-BS

Service Manual No.

OCH481

OCB481

Remote controller (Optional parts)

Radio frequency interface	Wired remote controller		IR wireless remote controller
			COOL
			DRY
			AUTO
			FAN
			HEAT
RF thermostat
	TEMP.	ON/OFF

Image 2

Contents Parts Catalog OCB488 ContentsRevised EDITION-A Remote controller Optional parts Reference ManualSafety Precaution Always Observe for SafetyFront grille When charging directly from cylinderPart Names and Functions Display Section Operation SectionTemperature setting display Operation Mode displayMode Select button Timer displaySpecifications Service RefPKA-A30KA4.TH Noise Criterion CurvesPKA-A24KA4.TH PKA-A24KAL PKA-A30KALUnit inch mm Outlines and DimensionsPKA-A24KA4.TH PKA-A30KA4.TH PKA-A36KA4.TH Wiring Diagram Explanation of symbolsRefrigerant System Diagram Heat exchangerAccording to 9-4. Troubleshooting by inferior phenomena TroubleshootingTroubleshooting Wired remote controller MALFUNCTION-DIAGNOSIS Method by Remote ControllerProcedure Case of trouble during operationU9,UH Appear even when operation Wired remote controller LED 1, 2 PCB in outdoor unitUnit’s power terminal block L1, L2, GR Remote controller wire shortSELF-DIAGNOSIS Action Table Pipe temperature OperatingErrorE0/signal receiving errorE4 Cause Countermeasure Pipe temperature thermistorRemote controller transmission Condenser-Evaporator TH5Remote controller control board Error Signal receiving errorError Transmitting error Indoor/outdoor unit communicationPerformance failure Troubleshooting by Inferior PhenomenaPhenomena Cause Countermeasure 1Upward/downward vane ControllerHeat pump type When the remote controller cannot be usedEmergency Operation Cooling Only typeThermistor Lower temperatureCondenser/evaporator temperature Thermistor TH5Sensor signal check DC Fan motor fan motor/indoor controller circuit boardTest Point Diagram Functions of DIP Switch and Jumper Wire Rotation function and Back-up function Outline of functions Special FunctionOperation System constraint2nd stage cut-in setting Request Code ListRotation setting 2nd unit Cut-outBACK-UP Heating Function CN152 How to connectSetting method of each function by wired remote controller Outline of functionsBe careful when removing heavy parts Disassembly ProcedureOperation Procedure Photos & Illustrations PhotoVane Motor and Drain Hose Operation Procedure PhotosRemoving the Nozzle Assembly with Vane Remove the screw fixing motor band. See Photo Disconnect the connector CN44 on the indoor controllerRemove the panel and the corner box. Refer to step Remove the liquid pipe thermistor and cond / eva thermistorRemove the room temperature thermistor Disconnect the connector CN20 on the indoor controller Board

PKA-A36KA4.TH, PKA-A30KA4.TH, PKA-A24KA4.TH specifications

Mitsubishi Electronics introduces its PKA series of commercial air conditioners, comprising models PKA-A24KA4.TH, PKA-A30KA4.TH, and PKA-A36KA4.TH. These units are designed to meet the growing demand for energy-efficient and reliable climate control solutions in commercial spaces. Each model in the series is equipped with advanced features that set them apart in the competitive air conditioning market.

One of the main features of the PKA series is the innovative inverter technology. This technology enables the air conditioning units to adjust their cooling or heating output according to the indoor temperature, leading to significant energy savings. By operating at varying speeds rather than a constant rate, the inverter system provides a more consistent and comfortable environment while reducing energy consumption by up to 30% compared to traditional fixed-speed systems.

Another standout characteristic of the PKA-A24KA4.TH, PKA-A30KA4.TH, and PKA-A36KA4.TH models is their compact design. These units are designed for easy installation in various commercial settings while taking up minimal space. This is particularly beneficial for businesses looking to optimize their floor space without compromising climate control efficiency.

The PKA series features advanced filtration technology, including a highly efficient air purification system. This enhances indoor air quality by removing dust, allergens, and other airborne pollutants, creating a healthier environment for occupants. The inclusion of a self-cleaning function also contributes to maintenance ease, as the unit automatically cleans the heat exchanger, preventing dust buildup and ensuring efficient operation.

Mitsubishi's commitment to whisper-quiet operation is another critical feature of these models. They are engineered to operate at sound levels as low as 19 dB(A), making them ideal for environments where noise control is essential, such as offices, hotels, or healthcare facilities.

Moreover, the PKA series is compatible with Mitsubishi's sophisticated control systems, allowing users to manage their air conditioning remotely via smartphone or tablet. This level of control enhances user convenience and maximizes system efficiency by enabling real-time adjustments based on occupancy and other factors.

Overall, the Mitsubishi Electronics PKA-A24KA4.TH, PKA-A30KA4.TH, and PKA-A36KA4.TH units represent a perfect blend of modern technology and user-centric design, providing businesses with effective, efficient, and quiet climate control solutions. With their advanced features, energy-saving capabilities, and emphasis on air quality, these models stand out as premier choices for managing environmental comfort in commercial applications.