3. SELECTING THE INSTALLATION SITE

3-1. Outdoor Unit

AVOID:

heat sources, exhaust fans, etc. (Fig. 1-3)

damp, humid or uneven locations

DO:

choose a place as cool as possible.

choose a place that is well ventilated and outside air temperature does not exceed maximum 115°F constantly.

Hot air

Out- door unit

1. Specifications

Exhaust fan

Heat source

allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig. 1-4)

use lug bolts or equal to bolt down unit, reducing vibration and noise.

if cooling operation is to be used when the outdoor air temperature is 23°F or below, install a duct on

the outdoor unit.

Installation space

Distance between obstructions and the unit air inlet and outlet must be as shown below.

*3

Inlet side C

More than 1/2"

More than 1/2"

*2 *4

Outlet side More than 3.3 ft.

*1

Fig. 1-4

Fig. 1-3

1

(Obstruction above unit)

Air direction chamber

(field supply)

 

B

 

A

*1

Inlet side

More than 8"

 

(Obstruction on

 

inlet side)

(Ground)

Fig. 1-5

CAUTION

Concerning inlet-side distance “C” (Fig. 1-4)

The minimum for distance “C” is 6" if there are no obstructions on the outlet side (wall *1 side) and *2 or *4 is not present. In all other cases, the minimum for distance “C” is 8".

If the unit is installed with the outlet side facing wall *1, then there must be no obstructions on 2 of the remaining 3 sides: *2, *3, *4.

If wall *1 is on the outlet side (Fig. 1-4), or if obstructions are present on all 3 sides *2, *3, and *4 (Fig. 1-4), then the minimum distance for “A” and “B” is 80" (Fig. 1-5). Even if there is no wall on the outlet side, a minimum of 3.3 ft. is required.

Installation requirements

provide a solid base (concrete block, 4"×16" beams or equal), a minimum of 6" above ground level to reduce humidity and protect the unit against possible water damage and decreased service life. (Fig. 1-6)

use lug bolts or equal to bolt down unit, reducing vibration and noise.

Anchor bolts (4 pieces)

Fig. 1-6

1-65

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Panasonic R410A service manual Selecting the Installation Site
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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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