Setting the outdoor unit system addresses

6. Test run

For basic wiring diagram 2 (Set the system addresses: 1, 2, 3...)

Outdoorunit control PCB

System address rotary switch (Set to “0” at time of shipment)

System address rotary switch

System address

10s 20s DIPswitch

ON ON

1 2 OFF

System address No.

0Automatic address (Setting at shipment = “0”)

1(If outdoor unit is No. 1)

2(If outdoor unit is No. 2)

11(If outdoor unit is No. 11)

21(If outdoor unit is No. 21)

30 (If outdoor unit is No. 30)

3 – 5HP

System address rotary switch

System address 10s digit and 20s digit

DIP switch

Automatic address button (black)

Terminal plug (black)

Fig. 6-7

System address 10s digit		System address 1s place
(2P DIP switch)		(Rotary switch)
ON		ON
Both OFF		0	“0” setting
Both OFF			“0” setting
1	2	OFF
ON		ON	“1” setting
Both OFF		1	“1” setting
		1
1	2	OFF
ON		ON
Both OFF		2	“2” setting
		2
1	2	OFF
ON		ON
10s digit ON		1	“1” setting
10s digit ON			“1” setting
1	2	OFF
ON		ON	“1” setting
20s digit ON		1	“1” setting
		1
1	2	OFF
ON		ON
10s digit and 20s digit ON		0	“0” setting
10s digit and 20s digit ON

1	2	OFF

Automatic address setting using the remote controller

When the outdoor unit shown in “Basic wiring diagram 2” is used for group control of multiple outdoor units , use the remote controller to perform automatic address setting. (During automatic address setting, “SETTING” blinks on the remote controller display.)

Press the remote controller timer time button and button simultaneously. (Hold for 4 seconds or longer.) Then press the button. (Item code “AA” appears: All systems automatic address setting.)

(Automatic address setting is performed in sequence for all outdoor units from No. 1 to No. 30. When automatic address setting is completed, the units return to normal stopped status.)

	To select each refrigerant system individually and perform automatic address setting, press the remote controller
	timer time	button and		button simultaneously. (Hold for 4 seconds or longer.) Then press either the tempera-
	ture setting	or	button. (Item code “A1” appears: Individual system automatic address setting)
	Use either the		or	button to select the outdoor unit to perform automatic address setting. (For example,


	when selected R.C.1 “R.C.1” is displayed.) Then press the button. (Automatic address setting is performed for

	refrigerant circuit 1.) When automatic address setting for circuit 1 is completed, the system returns to normal
6	stopped status. When automatic address setting for circuit 1 is completed, the system returns to normal stopped
6	status. In the same way, press the remote controller timer time				button and button simultaneously to per-
	form automatic address setting for a different R.C. (refrigerant circuit) if necessary. Then in the same way as
	above (use the		button to display “R.C.2,” for example), select the next circuit and perform automatic ad-


	dress setting.
	dress setting.

6-8

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.

Panasonic R410A service manual Setting the outdoor unit system addresses, System address No

Models: R410A

6. Test run