1. Specifications

1-11. ELECTRICAL WIRING

General Precautions on Wiring

(1)Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram.

(2)Provide a power outlet to be used exclusively for each unit, and a power supply disconnect and circuit breaker for overcurrent protection should be provided in the exclusive line.

(3)To prevent possible hazards from insulation failure, the unit must be grounded.

(4)Each wiring connection must be done in accordance with the wiring system diagram.

Wrong wiring may cause the unit to misoperate or become damaged.

(5)Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan.

1(6) Unauthorized changes in the internal wiring can be very dangerous. The manufacturer will accept no

responsibility for any damage or misoperation that occurs as a result of such unauthorized changes.

(7)Regulations on wire diameters differ from locality to locality. For field wiring rules, must follow your LOCAL ELECTRICAL CODES before beginning.

You must ensure that installation complies with all relevant rules and regulations.

(8)To prevent malfunction of the air conditioner caused by electrical noise, care must be taken when wiring as follows:

The remote control wiring and the inter-unit control wiring should be wired apart from the inter- unit power wiring.

Use shielded wires for inter-unit control wiring between units and ground the shield on one side only.

(9)If the power supply cord of this appliance is damaged, it must be replaced by a repair shop appointed by the manufacturer, because special-purpose tools are required.

(10)All wiring used must be Class 1.

Recommended Wire Length and Wire Diameter for Power Supply System

You must follow LOCAL ELECTRICAL CODES for wiring.

Outdoor Unit

Type

Time delay fuse or

circuit capacity

 

U-26PE1U6

30 A

U-36PE1U6

35 A

U-42PE1U6

40 A

Type

Time delay fuse or

circuit capacity

 

U-26PS1U6

25 A

U-36PS1U6

30 A

U-42PS1U6

35 A

Indoor Unit

 

 

 

 

 

 

 

 

 

 

Type

 

Time delay fuse or

 

 

 

 

 

 

 

 

circuit capacity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U1, K1, T1, F1

 

15 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control Wiring

 

 

 

 

 

 

 

 

 

 

(A) Inter-Unit Control Wiring

 

(B) Remote Control Wiring

(C) Control Wiring For Group Control

 

 

 

 

 

 

 

 

 

 

 

 

AWG #18

 

 

* 2

2

)

AWG #18

* 2

2

)

Use high voltage wire (300 V)*1

 

AWG #18

(0.75 mm

 

- (0.75 mm

Max. 3,300 ft.

 

 

Max. 1,650 ft.

 

Max. 650 - ft. (Total)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AWG=American Wire Gauge

*1 With ring-type wire terminal *2 Wire joint connection

1-60

Page 65 Page 67
Page 66
Image 66
Panasonic R410A service manual Outdoor Unit Type Time delay fuse or Circuit capacity
Page 65 Page 67

R410A specifications

Panasonic R410A is a refrigerant that has gained significant popularity in the air conditioning and refrigeration industry due to its favorable environmental properties and performance characteristics. Specifically designed to replace the harmful R22 refrigerant, which is being phased out due to its ozone-depleting potential, R410A offers a more eco-friendly alternative without compromising on efficiency or power.

One of the main features of R410A is its high energy efficiency. It operates at a higher pressure than R22, resulting in better heat transfer capabilities. This increased efficiency translates to lower energy consumption, making units using R410A more cost-effective in the long run. Additionally, R410A is known for its ability to provide excellent cooling performance even in high-temperature environments, making it suitable for a variety of applications, from residential air conditioning systems to commercial refrigeration units.

In terms of composition, R410A is a blend of two hydrofluorocarbons (HFCs), namely R32 and R125. This combination not only minimizes ozone depletion potential (ODP) but also reduces global warming potential (GWP) compared to older refrigerants. Panasonic has emphasized the importance of innovative technologies in its products, and R410A aligns perfectly with the company's commitment to developing sustainable solutions.

Panasonic also integrates advanced technologies to optimize the performance of R410A systems. For example, variable speed compressors, known as inverter technology, enhance system efficiency by adjusting the compressor's speed according to the cooling demand. This ensures that energy is only consumed when needed, further reducing operational costs.

Furthermore, R410A has a wide range of applications, including air conditioning systems, heat pumps, and chillers. Its versatility makes it a popular choice among manufacturers and consumers alike. The refrigerant is also compatible with existing R22 equipment, although specific retrofit procedures must be followed to ensure peak performance and reliability.

In conclusion, Panasonic R410A stands out as an innovative refrigerant choice in the HVAC industry, offering a combination of energy efficiency, environmentally friendly properties, and advanced technologies. As regulatory frameworks continue to tighten on greenhouse gas emissions, R410A and similar refrigerants are expected to play a crucial role in shaping a more sustainable future for air conditioning and refrigeration. Its high performance and lower environmental impact solidify its position as a leading refrigerant in contemporary cooling solutions.
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