1. Specifications

4. HOW TO INSTALL THE OUTDOOR UNIT

4-1. Installing the Outdoor Unit

 

Use concrete or a similar material to create the base,

 

and ensure good drainage.

 

Ordinarily, ensure a base height of 2". or more. If a

 

drain pipe is used, or for use in cold-weather regions,

 

ensure a height of 6". or more at the feet on both sides

 

of the unit. (In this case, leave clearance below the unit

 

for the drain pipe, and to prevent freezing of drainage

 

water in cold-weather regions.)

 

Refer to the Fig. 1-10 for the anchor bolt dimensions.

 

Be sure to anchor the feet with the anchor bolts (M10).

 

In addition, use anchoring washers on the top side. (Use

 

large square 32×32 SUS washers with diameters of

 

10.) (Field supply)

 

4-2. Drainage Work

 

Follow the procedure below to ensure adequate draining

1

for the outdoor unit.

For the drain port dimensions, refer to the fi gure at right.

Ensure a base height of 6 in. or more at the feet on both sides of the unit.

4-3. Routing the Tubing and Wiring

The tubing and wiring can be extended out in 4 directions: front, rear, right, and down.

The service valves are housed inside the unit. To access them, remove the inspection panel. (To remove the inspection panel, remove the 3 screws, then slide the panel downward and pull it toward you.)

(1) If the routing direction is through the front, rear, or right, use a nipper or similar tool to cut out the knockout holes for the inter-unit control wiring outlet, power wiring outlet, and tubing outlet from the appropriate covers A and B.

Drain port (2 locations)

6-11/16

25-63/64

8-5/8 5-29/32

33/64 33/64

13-25/64 11-21/32

33/6433/64

37-1/64

Drain port

Fig. 1-10

Inter-unit control wiring outlet

Inspection panel

Cover A

Front

Power wiring outlet

Down

4-21/64

25/32

25/64

 

 

14-61/64

15-15/16

25/32

19/32

Anchor bolt (M10)

Unit: inch

Rear

Cover B

Right

(2) If the routing direction is down, use a nipper or similar tool to cut out the lower fl ange from cover A.

Tubing outlet

CAUTION

Fig. 1-11

Route the tubing so that it does not contact the compressor, panel, or other parts inside the unit. Increased noise will result if the tubing contacts these parts. When routing the tubing, use a tube bender to bend the tubes.

1-74

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Panasonic R410A service manual Installing the Outdoor Unit, Drainage Work, Routing the Tubing and Wiring
Page 79 Page 81

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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