Wiring Specifications

8-1. INDOOR UNIT POWER SUPPLIED FROM OUTDOOR UNIT (A-control application)

The following connection patterns are available.

The outdoor unit power supply patterns vary on models.

1:1 System

A B

D	S1
	S1
	S2
	S3
G E	1
G E	2

Simultaneous twin system

AB L2

GR	D

G	E

F F

S1 S1

S2 S2

S3 S3

1	1
2	2	G

AOutdoor unit power supply

BWiring circuit breaker or isolating switch C Outdoor unit

D Indoor unit/outdoor unit connecting cords E Remote controller

F Indoor unit

G Indoor unit earth

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

Indoor unit model

PLA-A12, 18, 24, 30

PLA-A36, 42

PCA, PKA

Indoor unit power supply

–

Minimum circuit ampacity

Maximum rating of overcurrent protective device

15A

Outdoor unit model

A12

A18

A24

A30

A36

A42

Outdoor unit power supply

Single, 208/230 V, 60 Hz

Breaker size

15A

25A

30A

Minimum circuit ampacity

13A

18A

25A

26A

Maximum rating of overcurrent protective device

15A

20A

30A

40A

Outdoor unit power supply

2 o Min. AWG 14

2 o Min. AWG 12

2 o Min. AWG 10

Wiring WireNo.

Outdoor unit power supply earth

1 o Min. AWG 14

1 o Min. AWG 12

1 o Min. AWG 10

Indoor unit-Outdoor unit

3 o AWG 16 (polar)

size

Indoor unit earth

1 o Min. AWG 16

Remote controller-Indoor unit

2 o AWG 22 (Non-polar)

Circuit

rating

Outdoor unit L1-L2

AC 208/230 V

Indoor unit-Outdoor unit S1-S2

AC 208/230 V

Indoor unit-Outdoor unit S2-S3

DC 24 V

Remote controller-Indoor unit

DC 12 V

*1. Max. 50 m, 165 ft

*2. The 10 m, 30 ft wire is attached in the remote controller accessory. Max. 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 insulated 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/outdoor unit connecting cables. 4.Install an earth longer than other cables.

230V Single phase

Isolator	3 poles isolator

S1	S1
A-Control S2	S2	A-Control
Outdoor Unit		Indoor Unit
S3	S3

Warning:

In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3 terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type .

PUZ-A36NHA2-BS, PUY-A12NHA2, PUY-A42NHA2-BS, PUY-A30NHA2, PUZ-A36NHA2 specifications

Mitsubishi Electronics has long been a leader in the HVAC industry, and their range of air conditioning units, including the PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2, exemplifies their commitment to innovation and energy efficiency. These models are designed to provide optimal climate control for both residential and commercial applications, ensuring comfort throughout the year.

One of the defining features of these models is their advanced inverter technology, which allows for precise temperature control and reduced energy consumption. The inverter technology adjusts the compressor speed according to the cooling load, significantly lowering operating costs compared to traditional fixed-speed systems. This means that users can enjoy consistent comfort without worrying about surging energy bills.

The PUY and PUZ units come equipped with powerful indoor and outdoor components that enable efficient heat exchange. These systems provide excellent performance even in extreme weather conditions, with reliable operation at low ambient temperatures. This capability ensures that you can maintain a comfortable environment, no matter the season.

Additionally, the models are designed with quiet operation in mind. The outdoor units incorporate noise-reduction technology, ensuring that the systems operate at minimal sound levels. This is especially beneficial for residential areas or office environments, where maintaining a peaceful atmosphere is crucial.

Mitsubishi Electronics has also integrated smart technology into these units. With options for remote control via Wi-Fi, users can manage their air conditioning settings from anywhere, using their smartphones or tablets. This integration enhances user convenience and allows for more efficient scheduling and energy management.

These models are also known for their environmentally friendly refrigerants, such as R410A, which contribute to lower global warming potential and align with modern sustainability practices. By choosing Mitsubishi's PUY and PUZ series, consumers not only prioritize their comfort but also contribute to environmental conservation.

In summary, the Mitsubishi Electronics PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2 air conditioning units are equipped with cutting-edge technology, offering energy efficiency, quiet operation, and smart functionality. Whether for residential or commercial use, these units are designed to meet the demands of modern climate control while prioritizing energy savings and sustainability.