(2)Removing the corner cover and indicator cover

a)While lightly pressing the cen- ter of the corner cover, pull up the tab for the screw hole. Use the same procedure to remove the indicator cover. (Fig. 6-16)

Corner cover

Indicator cover

1 Press

2 Pull up

Fig. 6-16

3-6-2. Installing the Ceiling Panel

(1)Hang the temporary latches on the inside of the ceil- ing panel to the receptacle on the unit to temporarily attach the ceiling panel in place. (Fig. 6-17)

The ceiling panel must be installed in the correct direction relative to the unit. Align the REF. PIPE and DRAIN marks on the ceiling panel corner with the correct positions on the unit.

(2)Align the panel installation holes and the unit screw holes. (Fig. 6-18)

(3)Tighten the supplied special screws at the 4 panel installation locations so that the panel is attached tightly to the unit.

Check that the wiring connectors are not caught between the unit and the ceiling panel.

(4)Check that the panel is attached tightly to the ceiling. (Fig. 6-19)

At this time, make sure that there are no gaps between the unit and the ceiling panel, or between the ceiling panel and the ceiling surface.

If there is a gap between the panel and the ceiling, leave the ceiling panel attached and make fine adjustments to the installation height of the unit to eliminate the gap with the ceiling.

CAUTION

If the screws are not sufficiently tightened,

If a gap remains between the ceiling

trouble such as that shown in the figure

surface and the ceiling panel even

below may occur. Be sure to tighten

after the screws are tightened,

the screws securely.

adjust the height of the unit again.

Air leakage

 

Air leakage from

 

ceiling surface

 

Staining

Adjust so that there are no gaps.

 

Condensation, water leakage

 

 

Fig. 6-20

Temporary latches

Temporary latch

Fig. 6-17

Refrigerant tubing joint

Drainage check

 

 

 

 

Ceiling panel

 

REF.PIPE mark

DRAIN mark

Panel installation hole

(4 locations)

Special screws

Fig. 6-18

 

Do not allow

Indoor unit

gaps

Ceiling surface

Ceiling panel

Fig. 6-19

The height of the unit can be adjusted from the ceiling panel corner hole, with the ceiling panel attached, to an extent that does not affect the unit levelness,

the drain hose, or other elements.

10

Page 86
Image 86
Panasonic R410A service manual Installing the Ceiling Panel, Indoor unit Gaps Ceiling surface Ceiling panel

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.