Panasonic R410A service manual Processes and functions, Method of System Address Setting, Fig

2. Processes and functions

Terminal plug (CN015)

3P plug (black): Terminal plug for the communications line

•At the time of shipment from the factory, the short-circuiting socket (2P, black) is installed between pins 1 and 2 on the terminal plug (terminal = yes).

•When central control is used for multiple systems, leave the short-circuiting socket in place only on the outdoor unit with a system address of 1. At all other outdoor units (other than unit No. 1), move the short-circuiting socket to between 2 and 3 (terminal = no). If multiple short-circuiting sockets remain in place during central control, a com- munications failure will occur.

•In the case of a single system only (system address = 0), do not remove the short- circuiting socket. (Alarm "E04" will occur.)

Quiet mode	2P plug (white): Enables operation in quiet mode.
(CN028)	•	The outdoor unit fan and compressor frequencies are subject to limits during operation.
	•	Low-noise operation is enabled when the relay is turned ON.
		Example of wiring
			Relay (field supply) Power
		1	1	External contact
		Quiet mode
				(timer input, etc.: field supply)
		2	2
		CN028

Outdoor unit control PCB

Note 1: The maximum length of the wiring between the outdoor unit PCB and the relay is

2m.

•Lead wire with 2P plug (special-order part: WIRE K/ CV6231612098)

•Relay, field supply, contact input specifications: DC 5 V, 0.5 mA (Recommended relay: Fuji Electric HH62SW, compatible with micro contacts)

•Use a commercially available timer (such as the Omron H5 daily time switch).

Table 1. Method of System Address Setting

[S002 (rotary, black), S003 (2P DIP switch, green or blue)]

	Outdoor system	S002 setting	S003 setting
	address No.	(system address switch)	1P (10s-digit place)	2P (20s-digit place)
1 system only	1	0	OFF	OFF
	1	1	OFF	OFF
	2	2	OFF	OFF
	3	3	OFF	OFF	Out-	Out-	Out-	Out-
	4	4	OFF	OFF	door	door	door	door
	5	5	OFF	OFF	System
	6	6	OFF	OFF
					controller
	7	7	OFF	OFF
	8	8	OFF	OFF
	9	9	OFF	OFF
	10	0	ON	OFF	In-	In-	In-	In-
	11	1	ON	OFF
					door	door	door	door
Central	12	2	ON	OFF
	13	3	ON	OFF
control
	14	4	ON	OFF
	15	5	ON	OFF
	16	6	ON	OFF
	17	7	ON	OFF
	18	8	ON	OFF		Fig. 6
	19	9	ON	OFF
	20	0	OFF	ON
	21	1	OFF	ON
	22	2	OFF	ON
	23	3	OFF	ON
	24	4	OFF	ON
	25	5	OFF	ON
	26	6	OFF	ON
	27	7	OFF	ON
	28	8	OFF	ON
	29	9	OFF	ON
	30	0	ON	ON

2

2-11