6-9. Duct for Fresh Air

For fresh air intake

There is a duct connection part on side of the indoor unit. (Fig. 1-27)

Air-intake plenum (including Duct connection box and flange) are attached to the indoor unit when used to take fresh outdoor air.

Air-intake plenum

Type

CZ-26BCU1U

CZ-24KPU1U

(S-26PU1U6)

 

CZ-42BCU1U

CZ-36KPU1U

(S-36PU1U6, S-42PU1U6)

 

(1) Accessories

 

1. Specifications

 

ø1/8

hole

 

 

-

 

4

 

 

2-3/8

ø4-

 

 

 

2-5/32

13/32

 

 

Detail of fresh air intake

 

Check that the following parts are in the box when

 

unpacking.

 

 

 

NAME

Q’ ty

REMARKS

 

Screw (M5xL4-7/8”)

4

Air-intake plenum (for fastening)

 

Screw (M4xL4-1/2”)

8

Duct connection flange/box (for fastening)

1

Duct connection box

1

(for fresh air)

Duct connection flange

1

(for connecting fresh air duct)

(2) Installation

Installation steps (a) to (d) are the same for both the CZ-26BCU1U and the CZ-42BCU1U. The drawing illustrates installation of air-intake plenum to the CZ-26BCU1U

(a) Installing the air-intake plenum

Installation screws

(M5 × L4-7/8", 4 pcs)

 

Set the air-intake plenum to the indoor unit taking care

 

not to set to the incorrect direction.

 

Fasten the air-intake plenum with the supplied screws.

 

(M5 × L4-7/8", 4 pcs)

 

(b) Installing the duct connection box

 

Fasten the duct connection flange to the duct connection

 

box with the accessory screws. (M4 × L1/2", 4 pcs)

Air-intake

Fit the duct connection box into the rectangular hole of

plenum

the air-intake plenum and fasten it to the side of the

 

air-intake plenum with the accessory screws.

 

(M4 × L1/2", 4 pcs)

 

(c) Installing the indoor unit

 

Install the indoor unit to the ceiling.

 

(Install the indoor unit according to instructions enclosed

 

with the outdoor unit.)

 

When installing in a pre-

Indoor

unit

CAUTION existing location, install the

 

indoor unit before installing

 

the duct connection box.

 

Fig. 1-27

Socket cover

Fig. 1-28

Unit: inch

Panel lead wire (3P, 2P)

Clamper

3P socket (White)

2P socket (Green)

(switch box side)

3P socket (White)

2P socket (Green)

(ceiling panel side)

1-82

Page 87 Page 89
Page 88
Image 88
Panasonic R410A service manual Accessories
Page 87 Page 89

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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