Mitsubishi Electronics PKA-A30KA4.TH, PKA-A36KA4.TH Display Section, Operation Section

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Wired remote controller (Option)

Display Section

Day-of-Week

“Sensor” indication

Displays when the remote controller

For purposes of this explanation, all parts of the display are shown. During actual operation, only

the relevant items will be lit.

Identifies the current operation

Shows the operating mode, etc. *Multilanguage display is available.

“Centrally Controlled”indicator

Indicates that operation from the remote controller has been prohib- ited by a master controller.

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off timer is set.

If the simple or Auto Off timer is set, the time to be switched off is shown.

TIME SUN MON TUE WED THU FRI SAT

TIMER

Hr

ON

AFTER

AFTER

OFF

ERROR CODE

 

FUNCTION

°F°C

 

FILTER

°F°C

 

 

WEEKLY

ONLY1Hr.

 

SIMPLE

 

AUTO OFF

sensor is used.

“Locked” indicator

Indicates that remote controller but- tons have been locked.

“Clean The Filter” indicator

To be displayed on when it is time to clean the filter.

Timer indicators

The indicator comes on if the corre- sponding timer is set.

Fan Speed indicator

Shows the selected fan speed.

“Timer is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Up/Down Air Direction indica- tor

The indicator shows the direc- tion of the outcoming airflow.

“One Hour Only” indicator

Displays if the airflow is set to low or downward during COOL or DRY mode. (Operation varies according to model.)

The indicator goes off in 1 hour, when the airflow direction also changes.

Room Temperature display

Shows the room temperature. The room temperature display range is 46–102˚F. The display blinks if the temperature is less than 46˚F or 102˚F or more.

Louver display

Indicates the action of the swing louver. Does not appear if the louver is not running.

(Power On indicator)

Indicates that the power is on.

Ventilation indicator

Appears when the unit is running in Ventilation mode.

Operation Section

Temperature setting buttons

 

 

 

Down

 

 

 

Up

 

 

 

Timer Menu button

 

 

 

(Monitor/Set button)

 

 

 

Mode button (Return button)

 

 

 

 

 

TEMP.

 

Set Time buttons

 

 

 

Back

 

MENU

ON/OFF

Ahead

BACK

MONITOR/SET

DAY

 

Timer On/Off button

PAR-21MAA

CLOCK

(Set Day button)

 

 

 

Opening the

 

 

 

cover

 

 

 

 

ON/OFF

 

 

FILTER

 

CHECK

TEST

OPERATION

CLEAR

 

ON/OFF button

Fan Speed button

Filter button (<Enter> button)

Test Run button

Check button (Clear button)

Airflow Up/Down button

Louver button

( Operation button)

To return operation number

Ventilation button

Built-in temperature sensor

(Operation button)

To go to next operation number

Note:

“PLEASE WAIT” message

This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure.

“NOT AVAILABLE” message

This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have).

If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as far as any of the indoor units is equipped with the function.

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Contents Parts Catalog OCB488 ContentsRevised EDITION-A Reference Manual Remote controller Optional partsAlways Observe for Safety Safety PrecautionFront grille When charging directly from cylinderPart Names and Functions Operation Section Display SectionMode Select button Operation Mode displayTemperature setting display Timer displayService Ref SpecificationsPKA-A24KA4.TH Noise Criterion CurvesPKA-A30KA4.TH PKA-A24KAL PKA-A30KALUnit inch mm Outlines and DimensionsPKA-A24KA4.TH PKA-A30KA4.TH PKA-A36KA4.TH Explanation of symbols Wiring DiagramHeat exchanger Refrigerant System DiagramAccording to 9-4. Troubleshooting by inferior phenomena TroubleshootingTroubleshooting Procedure MALFUNCTION-DIAGNOSIS Method by Remote ControllerWired remote controller Case of trouble during operationU9,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 typeCondenser/evaporator temperature Lower temperatureThermistor Thermistor TH5DC Fan motor fan motor/indoor controller circuit board Sensor signal checkTest 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 ProcedureBe careful when removing heavy parts PhotoVane Motor and Drain Hose Operation Procedure PhotosRemoving the Nozzle Assembly with Vane Remove the panel and the corner box. Refer to step Disconnect the connector CN44 on the indoor controllerRemove the screw fixing motor band. See Photo Remove the liquid pipe thermistor and cond / eva thermistorDisconnect the connector CN20 on the indoor controller Board Remove the room temperature thermistor

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.