Mitsubishi Electronics PL18FK21, PL42FK21, PL36FK31, PL30FK21, PL12FK1, PL24FK21 OC194-27

Page 27

5Coil frost protection

When indoor coil temperature becomes 5°F or below,coil frost protection will proceed as follows.

<Start condition>

After the compressor has been continuously operated for 3 minutes or more,and the indoor coil temperature has been 5°F or below for 3 minutes,the coil frost protection will start.

<Coil frost protection>

Compressor stops for 6 minutes,and then restarts.

lf the start condition is satisfied again during the first 10 minutes of compressor operation,both the indoor and outdoor units stop,displaying a check code of“P6”on the remote controller.

<Termination conditions>

Coil frost protection is released when the start condition is not satisfied again during the allowance, or when the COOL mode stops or changes to another mode.

(2)Indoor fan control

Indoor fan speed LOW/HIGH depends on the remote controller setting.

However, if an outdoor unit abnormality is detected, the indoor fan speed will be LOW, regardless of the remote controller setting.

( i) Fan speed LOW/HIGH depends on the remote controller setting regardless of the thermostat ON/OFF.

(ii) Fan speed will remain on LOW if an abnormality in outdoor unit is detected. (5 minutes) NOTE : Fan stops immediately if the unit stops or the check mode is started.

(3)Auto vane control

Auto vane position is set to 20 degrees airflow at the start-up of COOL operation.

(a) Vane position set mode & swing mode.

( i ) Every time AIR DISCHARGE button is pressed, setting will be changed . ( ii ) Airflow direction can be changed with AIR DISCHARGE button.

1 Fan speed : LOW

20° 60° 70° SWING

2Fan speed : HIGH

20°

45°

60°

70°

SWING

 

 

<VANE POSITION>

 

 

 

 

 

 

1 Fan speed : LOW

 

 

2 Fan speed : HIGH

 

 

20

60

70

20

45

60

70

AUTO RETURN

When 60 degrees or 70 degrees airflow is selected with the LOW fan speed in COOL operation, “AUTO RETURN” will appear right side of the air direction display. One hour later, the airflow direction returns to 20 degrees automatically and “AUTO RETURN” will disappear. If the airflow direction is set to 20 degrees during “AUTO RETURN” indication, the time counting for AUTO RETURN is cancelled.

OC194-27

Image 27
Contents OC194-1 ContentsOC194-2 Technical ChangeAdvanced Microprocessor Control FeaturesOC194-3 Models Cooling capacityRemote controller operation buttons Part Names and FunctionsOC194-4 OC194-5 Remote controller displaySpecifications OC194-6Models PL12FK1, PL18/24FK21 Models PL30FK21, PL36FK31, PL42FK21 OC194-7Performance Data DataOC194-8 Models PL12FK1, PL18/24/30FK21, PL36FK31, PL42FK21Performance Curve OC194-9PL24FK2 1 Cooling Capacity PL30FK2 1 Cooling Capacity OC194-10Condensing Pressure and Suction Pressure OC194-11OC194-12 OC194-13 OC194-14 Standard Operation DataOperating Range PL18FK21 OC194-15Noise Criterion Curves PL12FKPL36FK31 OC194-16PL24FK2 PL42FK2PL12FK1/ 18/24FK21 Outlines and DimensionsOC194-17 Indoor UnitPL30FK21/ 36FK31/ 42FK21 OC194-18Refrigerant System Diagram OC194-19PL12FK1 Wiring Diagram Models PL12FK1 PL18FK21 PL24FK21 Wiring DiagramOC194-20 OC194-21 Models PL30FK21 PL36FK31 PL42FK21 Wiring DiagramOperation FLOW-CHART OC194-22Main Operation Cooling Operation OC194-23DRY Operation OC194-24Outline of Microprocessor Control Indoor unit Orders Remote controller LCD indicatorMicroprocessor Control OC194-25Compressor control How to operateOC194-26 Indoor Unit ControlOC194-27 Drain sensor OC194-28Detecting abnormalities in the outdoor unit Drain pump controlDRY operation time chart How to operate OC194-29DRY operation OC194-30 Auto return OC194-31Swing COOL/DRY operationTest run Before test run Timer operationTimer function OC194-32OC194-33 Emergency operationBefore emergency operation On indoor controller board DIP Switch FunctionsOn remote controller board OC194-34Indoor FAN Control OC194-35Troubleshooting OC194-36Troubles in Test RUN OC194-37 When malfunction occurs during operationCheck mode For group control using one remote controllerOC194-38 OC194-39 Wrong Wiring on SiteOther Troubles and Causes OC194-40Vane motor OC194-41OC194-42 12 4-WAY AIR Flow System OC194-43Internal surface view of the grill High ceiling OC194-44Regular ceiling height Relatively high ceilingOC194-45 17-11/16 Examples of application PrecautionsOC194-46 Ambient air flow CFM OC194-47Duct Pressure Fresh-Air P-V curveDirection discharge 17-11/16O2 directions Branch Duct installation at siteOC194-48 Direction discharge 11-13/16O4 directionsPL30FK21/ 36FK31 PLH42FK21 OC194-49PAC-SA89TA-E System ControlOC194-50 Variety of System Control FunctionsGroup Control by a Single Remote Controller OC194-51ALL OFF SW2 Remote controller LCD indication Control Using TWO Remote ControllersRemote ON-OFF and Individual Remote Controls How to set SW17-7 See FigureOC194-53 Individual Control by Grouping the Remote ControllersBasic wiring Switch function of remote ON-OFF switchAuto Restart Function Multiple Remote Control DisplayTimer Operation or the Operation by AN External Signal OC194-54Indoor unit PL24FK21 Disassembly ProcedureOperating Procedure PHOTOS&ILLUSTRATIONS OC194-55OC194-56 PL12FK1, PL18FK21, PL24FK21 Parts ListOC194-57 PL12FK, PL18FK2, PL24FK2 Panel PartsPL12FK, PL18FK2, PL24FK2 Functional Parts OC194-58OC194-59 OC194-60 PL30FK2, PL36FK3, PL42FK2 Functional PartsPL30FK21, PL36FK31, PL42FK21 OC194-61 R01 K21 691 OC194-62PL30FK2, PL36FK3, PL42FK2 Panel Parts T7W 413Timer Optional PartsOC194-63 Current Time Display PAC-SC32PTA Weekly Timer Setting DisplayOC194-64 Names and functionsPAC-SA89TA-E ORN BRN RED Timer AdapterMultiple Remote Controller Adapter OC194-65Distributed 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.