6-5. Checking the Drainage

After wiring and piping are completed, use the follow- ing procedure to check that the water will drain smooth- ly. For this, prepare a bucket and wiping cloth to catch and wipe up spilled water.

Do not supply power to the WARNING unit until the tubing and wir-

ing to the outdoor unit are completed.

(1)Take off the tube cover and through the opening, slowly pour about 0.3 gal of water into the drain pan to check drainage.

(2)Do Test Run to check the drainage after complet- ing installation. When performing Test Run, refer to the installation instructions attached to the outdoor unit.

Be careful since the fan will CAUTION start turning when checking

the drainage.

(3)After drain checking is finished, return the Opera- tion Selector switch to the RUN position (ON posi- tion ) and remount the tube cover.

To mount the tube cover, WARNING use 5/16" (4 × 8 mm) tap-

ping screws. Do not use long screws as they may puncture the drain pan and cause water leakage.

1. Specifications

1

5/16"(4 ⋅ 8 mm) tapping screw

Tube cover

Siphon

Fig. 1-23

1-79

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Panasonic R410A service manual Checking the Drainage
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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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