3. WRONG WIRING ON SITE

3-1 Between remote controller and indoor unit

If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controller when the POWER button is pressed. The beep sound will also not be heard.

3-2 Phenomenon due to wrong wiring between indoor and outdoor units

Wrong wiring

 

Thermostat

Phenomenon

Indoor

Outdoor

OFF

Operation stops.

 

 

1

1

 

 

2

2

 

4-Way valve is turned to ON. 9 minutes later, the check code “P8”

3

3

ON

appears on the remote controller display.

 

 

 

Indoor

Outdoor

OFF

The outdoor unit stops.

 

 

1

1

 

 

2

2

 

 

3

3

ON

Operation stops. 9 minutes later, the check code “P8” appears on the

remote controller display.

 

 

 

Indoor

Outdoor

OFF

The outdoor unit stops.

 

 

1

1

 

 

2

2

 

 

3

3

ON

Operation stops. 9 minutes later, the check code “P8” appears on the

remote controller display.

 

 

 

Indoor

Outdoor

OFF

The outdoor unit stops.

1

1

 

 

2

2

 

 

3

3

ON

Operation stops. 9 minutes later, the check code “P8” appears on the

 

 

remote controller display.

 

 

 

Indoor

Outdoor

OFF

The outdoor unit stops.

 

 

1

1

 

 

2

2

 

 

3

3

ON

Operation stops. 9 minutes later, the check code “P8” appears on the

 

 

remote controller display.

 

 

 

Disconnection between 1 and 1 or 2

OFF

Operation stops.

and 2.

 

 

 

 

 

ON

9 minutes later, the check code “P8” appears on the remote controller

 

 

display.

 

 

 

Disconnection between 3 and 3.

OFF

 

 

 

 

Normal operation.

 

 

ON

 

OC194-39

Page 39
Image 39
Mitsubishi Electronics PL18FK21, PL42FK21, PL36FK31, PL30FK21, PL12FK1, PL24FK21 specifications OC194-39, Wrong Wiring on Site

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.

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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.

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