5. Outdoor unit maintenance remote control

*2: 7-segment, 4-digit display for remote controller timer display

The connected unit Nos. are displayed as shown below, using the 7-segment 4-digit ( ) display and the colon.

Display for unit Nos. 1 – 20

Not lit

 

Not lit

 

Not lit

 

 

Not lit

 

Meaning of display colon

 

1

 

6

 

11

 

16

 

 

 

 

 

 

 

 

 

 

 

 

3

4

8

9

13

14

 

18

19

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

7

 

12

 

17

 

 

 

 

 

 

 

5

 

10

 

15

 

 

20

 

 

 

 

 

 

 

 

 

Lit

 

Lit

 

Lit

 

 

Lit

 

 

is not displayed.

 

 

 

 

 

 

 

 

 

 

 

 

Display for unit Nos. 21 – 40

 

 

 

 

 

 

 

 

 

Not lit

 

Not lit

 

Not lit

 

 

Not lit

 

Meaning of display colon

 

21

 

26

 

31

 

36

 

 

 

 

 

 

 

 

 

 

 

 

23

24

28

29

33

34

 

38

39

 

 

 

 

 

 

 

 

 

 

 

 

 

22

 

27

 

32

 

37

 

 

 

 

 

 

 

25

 

30

 

35

 

 

40

Lit

 

Lit

 

Lit

 

 

Lit

 

 

 

 

 

 

 

 

 

 

The meaning of the colon display changes in the same way, allowing unit Nos. up to 80 to be displayed.

Sample displays of the unit Nos. of connected indoor units

• Display of unit No. 1

• Display of unit Nos. 1 and 2

• Display of unit Nos. 1, 2, and 3

• Display of unit Nos. 1, 2, 3, and 4

NOTE

The colon display changes automatically every 10 seconds. (The display does not change if higher unit numbers do not exist.)

Pressing the button switches the display immediately to the next higher level, even if 10 seconds have not passed.

AB

*3: The total compressor operating time is displayed (in 1-hour units) using 8 digits.

• When the first 4 digits are displayed, the top point of the colon is lit.

• When the last 4 digits are displayed, the colon points are not lit.

• The display of the first 4 and last 4 digits changes automatically every 10 seconds. It can also be changed by pressing the

button.

10: <Total compressor operating time> (A) and (B) are displayed alternately.

5

NOTE

With the outdoor unit maintenance remote controller (when connected to the outdoor unit), the unit remote controller check functions will not operate.

5-5

Page 183
Image 183
Panasonic R410A service manual Display for unit Nos

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.