Mitsubishi Electronics PL42FK21, PL36FK31, PL30FK21, PL18FK21, PL12FK1 OC194-30, Indoor fan control

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4The compressor will not start when the room temperature is 64°F or below.

The compressor starts intermittent operation when the power is turned ON with room temperature above 64°F. The com- pressor ON/OFF time depends on the thermostat ON/OFF and the following room temperatures.After 3-minute compres- sor operation,

If the room temperature thermistor reads above 85°F with thermostat ON, the compressor will operate for 6 more min- utes and then stop for 3 minutes.

If the room temperature thermistor reads 79°F~82°F with thermostat ON, the compressor will operate for 4 more min- utes and then stop for 3 minutes.

If the room temperature thermistor reads 75°F~79°F with thermostat ON, the compressor will operate for 2 more min- utes and then stop for 3 minutes.

If the room temperature thermistor reads below 75°F with thermostat ON, the compressor will stop for 3 minutes.

If the thermostat is OFF regardless of room temperature, the compressor will stop for 10 minutes.

5Coil frost protection

Coil frost protection in DRY operation is the same as in COOL operation.

6Coil frost prevention

Coil frost prevention does not operate in DRY operation.

(2)Indoor fan control

The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote con- troller. Also, the indoor fan does not run during compressor OFF.

(3)Auto vane & drain pump controls Same as in COOL operation

(4)Detecting abnormalities in the outdoor unit

An abnormality in the outdoor unit can not be detected in DRY operation.

OC194-30

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Contents Contents OC194-1Technical Change OC194-2Models Cooling capacity FeaturesOC194-3 Advanced Microprocessor ControlRemote controller operation buttons Part Names and FunctionsOC194-4 Remote controller display OC194-5Specifications OC194-6Models PL12FK1, PL18/24FK21 OC194-7 Models PL30FK21, PL36FK31, PL42FK21Models PL12FK1, PL18/24/30FK21, PL36FK31, PL42FK21 DataOC194-8 Performance DataOC194-9 Performance CurveOC194-10 PL24FK2 1 Cooling Capacity PL30FK2 1 Cooling CapacityOC194-11 Condensing Pressure and Suction PressureOC194-12 OC194-13 OC194-14 Standard Operation DataOperating Range PL12FK OC194-15Noise Criterion Curves PL18FK21PL42FK2 OC194-16PL24FK2 PL36FK31Indoor Unit Outlines and DimensionsOC194-17 PL12FK1/ 18/24FK21OC194-18 PL30FK21/ 36FK31/ 42FK21Refrigerant System Diagram OC194-19PL12FK1 Wiring Diagram Models PL12FK1 PL18FK21 PL24FK21 Wiring DiagramOC194-20 Models PL30FK21 PL36FK31 PL42FK21 Wiring Diagram OC194-21Operation FLOW-CHART OC194-22Main Operation OC194-23 Cooling OperationOC194-24 DRY OperationOC194-25 Indoor unit Orders Remote controller LCD indicatorMicroprocessor Control Outline of Microprocessor ControlIndoor Unit Control How to operateOC194-26 Compressor controlOC194-27 Drain pump control OC194-28Detecting abnormalities in the outdoor unit Drain sensorDRY operation time chart How to operate OC194-29DRY operation OC194-30 COOL/DRY operation OC194-31Swing Auto returnOC194-32 Timer operationTimer function Test run Before test runOC194-33 Emergency operationBefore emergency operation OC194-34 DIP Switch FunctionsOn remote controller board On indoor controller boardOC194-35 Indoor FAN ControlTroubleshooting OC194-36Troubles in Test RUN For group control using one remote controller When malfunction occurs during operationCheck mode OC194-37OC194-38 Wrong Wiring on Site OC194-39OC194-40 Other Troubles and CausesOC194-41 Vane motorOC194-42 12 4-WAY AIR Flow System OC194-43Internal surface view of the grill Relatively high ceiling OC194-44Regular ceiling height High ceiling17-11/16 Examples of application Precautions OC194-45OC194-46 Fresh-Air P-V curve OC194-47Duct Pressure Ambient air flow CFMDirection discharge 11-13/16O4 directions Branch Duct installation at siteOC194-48 Direction discharge 17-11/16O2 directionsOC194-49 PL30FK21/ 36FK31 PLH42FK21Variety of System Control Functions System ControlOC194-50 PAC-SA89TA-EGroup Control by a Single Remote Controller OC194-51ALL OFF SW2 How to set SW17-7 See Figure Control Using TWO Remote ControllersRemote ON-OFF and Individual Remote Controls Remote controller LCD indicationSwitch function of remote ON-OFF switch Individual Control by Grouping the Remote ControllersBasic wiring OC194-53OC194-54 Multiple Remote Control DisplayTimer Operation or the Operation by AN External Signal Auto Restart FunctionOC194-55 Disassembly ProcedureOperating Procedure PHOTOS&ILLUSTRATIONS Indoor unit PL24FK21OC194-56 PL12FK, PL18FK2, PL24FK2 Panel Parts Parts ListOC194-57 PL12FK1, PL18FK21, PL24FK21OC194-58 PL12FK, PL18FK2, PL24FK2 Functional PartsOC194-59 OC194-60 PL30FK2, PL36FK3, PL42FK2 Functional PartsPL30FK21, PL36FK31, PL42FK21 OC194-61 T7W 413 OC194-62PL30FK2, PL36FK3, PL42FK2 Panel Parts R01 K21 691Timer Optional PartsOC194-63 Names and functions PAC-SC32PTA Weekly Timer Setting DisplayOC194-64 Current Time DisplayOC194-65 Timer AdapterMultiple Remote Controller Adapter PAC-SA89TA-E ORN BRN REDDistributed in Dec . No.OC256 Specifications are subject to change without notice

PL18FK21, PL30FK21, PL12FK1, PL36FK31, PL24FK21 specifications

Mitsubishi Electronics has long been recognized for its commitment to quality and innovation in the field of air conditioning systems. Among its impressive lineup, the models PL42FK21, PL24FK21, PL36FK31, PL12FK1, and PL30FK21 stand out for their advanced features, efficiency, and user-friendly designs.

The PL42FK21 is designed to deliver superior cooling and heating performance, making it suitable for larger spaces. With its high energy efficiency rating, it minimizes energy consumption while providing optimal comfort. This model is equipped with advanced inverter technology that regulates the compressor speed, ensuring the desired temperature is maintained without unnecessary fluctuations in power usage.

Next, the PL24FK21 offers similar efficiencies while accommodating medium-sized spaces. This model incorporates a streamlined design that blends with any interior, while its quiet operation ensures that it does not disrupt daily activities. Moreover, the model features a programmable timer and remote control, enhancing user convenience and comfort.

The PL36FK31 is another model that brings forth powerful performance, ideal for commercial applications or larger residential installations. It boasts superior airflow distribution, ensuring even cooling or heating throughout the desired area. The addition of a high-performance filter system helps to purify the air, making it a healthy option for families and workplaces alike.

For those seeking a compact solution, the PL12FK1 is a standout choice. This model excels in efficiency while maintaining a small footprint, making it perfect for apartments or smaller rooms. With its energy-saving capabilities and modern design, this unit combines functionality and style seamlessly.

Finally, the PL30FK21 balances performance with affordability. This model comes with a host of features, including an eco-friendly refrigerant that minimizes environmental impact. It also incorporates smart controls that enable users to manage their settings via mobile apps, adding a level of modern convenience that many consumers desire.

Each of these Mitsubishi models is built with durability in mind, ensuring they can withstand the rigors of daily use. Additionally, Mitsubishi Electronics provides exceptional customer support and warranty options, reflecting their commitment to customer satisfaction.

In summary, the PL42FK21, PL24FK21, PL36FK31, PL12FK1, and PL30FK21 from Mitsubishi Electronics exemplify the brand's dedication to innovation, efficiency, and user-friendliness in air conditioning technology. These models cater to a variety of spaces and user needs, making them a reliable choice for both residential and commercial applications.