3-5. Checking the Drainage

After wiring and drain piping are completed, use the following pro- cedure to check that the water will drain smoothly. For this, pre- pare a bucket and wiping cloth to catch and wipe up spilled water.

Be sure to do the wiring between the units before installing the ceiling panel. (Refer to 3-8. Wiring Instructions for Inter-unit Connections)

(1)Turn on the power. (Here, “power” refers to the power supply from the outdoor unit.)

(2)Slowly pour approx. 16 ounces (500 ml) of water into the drain pan to check drainage. (Fig. 6-10a)

(3)Remove the 2 screws from the control box cover, then open the cover. Be careful not to drop the cover at this time.

(4)Disconnect the FS 3P connector (red) on the control PCB and operate the drain pump. (Fig. 6-10b) Check the water flow through the transparent drain pipe and see if there is any leakage.

(5)When the check of drainage is complete, reconnect the FS 3P connector and remount the control cover.

Water drain

Over 4"

(100mm)

Control box

Plastic container

Drain pan outlet

for water intake

Water

 

(Approx. 16 ounces (500m ) )

Fig. 6-10a

Control box

)/$3

The drain pump will continue to CAUTION operate for a minimum of 6 min-

utes after the FS 3P connector is reconnected.

3-6. How to Install the Ceiling Panel

Checking the unit position

 

 

 

 

 

FS

IND RC

Fig. 6-10b

Amust be within the range of 1/2"(13mm) to 23/32"(18mm). (Fig. 6-11) If not within this range, malfunction or other trouble may occur.

Indoor unit

(1)Check that the ceiling hole is 23-5/8" (600 mm)  23-5/8" (600 mm) (Fig. 6-11)

(2)Confirm that the position of the indoor unit and the ceiling as shown in the diagram. If the positions of the ceiling sur- face and unit do not match, air leakage, water leakage, flap operation failure, or other problems may occur. (Fig. 6-11)

ACeilingopening

dimension

Ceiling side

/DWFK

Fig. 6-11

NO Flap

CAUTION

Never place the panel face-down. Neither hang it ver- tically nor place it on top of a projecting object. Plac- ing it face-down will damage the surface.

Do not touch the flap or apply force to it. (This may cause flap malfunction.) (Fig. 6-12)

3-6-1. Before Installing the Ceiling Panel

(1)Remove the air-intake grille and air filter from the ceiling panel.

a)Press on and slide the two latches of the air-intake grille with your thumb in the direction shown by the arrow 1 to open the grille. (Figs. 6-13 and 6-14)

b)With the air-intake grille opened, remove the grille hinge from the ceiling panel by sliding it in the direction shown by the arrow 2 . (Fig. 6-15)

Fig. 6-12

Fig. 6-13

Ceiling panel

Air-intake grille

1

1

Air-intake grille hinge

Fig. 6-14

2

Fig. 6-15

9

Page 85
Image 85
Panasonic R410A service manual Checking the Drainage, 10a

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.