6. Electrical work
6.1.1. Indoor unit power supplied from outdoor unit The following connection patterns are available.
The outdoor unit power supply patterns vary on models.1 System

1:1 System



 

 

L1

 

 

 

 Outdoor unit power supply





 

 

CN105

 Wiring circuit breaker or isolating switch

L2

 

 

 

 

(RED)

 Outdoor unit

 

 

GR



 

 

 

 

S1

S1



 Indoor unit/outdoor unit connecting cords

 

 

 

 

 

S2

 

S2

 

 Wired remote controller

 

 

S3

 

S3



 

 

 

 Indoor unit

 

 

 

 

 

 

 

 

 

 

1

 

 Indoor unit earth

 

 

 

 

 Indoor controller board

 

 

 

2

 

 Radio frequency interface for RF thermostat

* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.

Indoor unit model

 

PCA-A24,30

 

PCA-A36, 42

Minimum circuit ampacity

 

1A

 

2A

Maximum rating of overcurrent protective device

 

 

15A

Wiring WireNo. size×

Indoor unit-Outdoor unit

*1

3 × AWG16 (polar)

 

 

 

 

 

Indoor unit earth

 

1 × Min. AWG16

 

 

 

 

 

 

 

Wired remote controller-Indoor unit

*2

2 × AWG22 (Non-polar, unshielded)

 

 

 

 

 

Circuit rating

Indoor unit-Outdoor unit S1-S2

*3

 

AC 208/230 V

Indoor unit-Outdoor unit S2-S3

*3

 

DC24 V

 

 

 

Wired remote controller-Indoor unit

*3

 

DC12 V

*1. Max. 50 m, 165 ft

*2. The 10 m, 30 ft wire is attached in the wired remote controller accessory. Max. 500 m, 1500 ft

*3. The figures are NOT always against the ground.

S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulataed by the transformer or other device.

Notes: 1. Wiring size must comply with the applicable local and national code.

2.Use copper supply wires.

3.Use wires rated 600V or more for the power supply cables and the indoor unit/outdoor unit connecting cables.

4.Install an earth longer than other cables.

6.2.Remote controller

6.2.1.For wired remote controller

1) 2 wired remote controllers setting

If 2 wired remote controllers are connected, set one to “Main” and the other to “Sub”.

For setting procedures, refer to “Function selection of remote controller” in the operation manual for the indoor unit.

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Mitsubishi Electronics PCA-A.KA4 Remote controller, For wired remote controller, Wired remote controllers setting

PCA-A.KA4 specifications

The Mitsubishi Electronics PCA-A.KA4 is an advanced air conditioning unit designed to deliver exceptional comfort and efficiency in various settings. Known for its innovative technology and user-friendly design, this model is a preferred choice for both residential and commercial applications.

One of the main features of the PCA-A.KA4 is its advanced inverter technology. This system allows for variable speed operation, which means that the compressor can adjust its output based on the current cooling demand. As a result, the unit operates more efficiently, consuming less energy compared to traditional fixed-speed air conditioners. This not only reduces energy bills but also lessens the environmental impact, making the PCA-A.KA4 an eco-friendly option.

The PCA-A.KA4 also boasts a high seasonal energy efficiency ratio (SEER) rating, which indicates its effectiveness in converting electricity into cooling power over an entire season. This high efficiency is a significant advantage, particularly in regions with hot climates, where air conditioning usage is prevalent.

Another notable characteristic is the use of cutting-edge air purification technology. The PCA-A.KA4 is equipped with a multi-stage filtration system that captures dust, allergens, and other airborne particles. This feature enhances indoor air quality, ensuring that occupants breathe cleaner and healthier air, which is particularly beneficial for those with respiratory issues or allergies.

In terms of user convenience, the PCA-A.KA4 is designed with an intuitive remote control that provides easy operation from anywhere in the room. Additionally, the unit can be integrated with smart home systems, allowing for remote access and control via smartphones or tablets. This flexibility enables users to adjust settings even when they are away from home, ensuring optimal comfort at all times.

The PCA-A.KA4 also includes a quiet operation mode, minimizing noise levels to promote a peaceful environment. This feature is especially valuable in bedrooms or offices where concentration and relaxation are key.

Overall, the Mitsubishi Electronics PCA-A.KA4 represents a harmonious blend of comfort, efficiency, and smart technology. With its advanced features and user-friendly design, it stands out as a reliable air conditioning solution capable of meeting modern demands for both performance and sustainability. Whether for home or business use, the PCA-A.KA4 delivers a superior cooling experience that enhances overall well-being.