6-3. Placing the Unit Inside the Ceiling

(1) When placing the unit inside the ceiling, determine

the pitch of the suspension bolts using the

supplied full-scale installation diagram. (Fig. 1-15)

The size of the opening for the indoor unit can be

confirmed by attaching the full-scale installation

diagram beneath the unit. (Fig. 1-15)

Tubing and wiring must be laid inside the ceiling

when suspending the unit. If the ceiling is already

constructed, lay the tubing and wiring into position

for connection to the unit before placing the unit

inside the ceiling.

(2) The length of each suspension bolt must be

appropriate for a distance between the bottom of

the bolt and the bottom of the ceiling of 5/8" or

more as shown in Fig. 1-15.

 

1. Specifications

 

Full-scale installation diagram

5/8" or more

(printed on a cardboard packing)

7/8"

 

1-

 

Full-scale installation

 

diagram

Fig. 1-15

Suspension bolt

Suspension lug

(3) Thread the 2 hexagonal nuts (field supply) and

washers onto the 4 suspension bolts as shown in

Fig. 1-16.

Nuts and washers (Use above and below)

Upper

Lower

1

 

Use 2 sets of nuts and washers (upper and lower),

 

so that the unit will not fall off the suspension lugs.

(4)

Remove the protective cardboard used to protect

 

the fan parts during transport.

(5)

Adjust the distance between the unit and surface

 

of the ceiling. (1-7/8") (Fig. 1-15)

Notch

Double nuts

1-7/8"

Fig. 1-16

1-77

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Image 83
Panasonic R410A service manual Placing the Unit Inside the Ceiling

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.