Technibel CAFP 124 R Technical Data & Service Manual page 90

Terminal plug
(CN015)
Quiet mode
(CN028)
2
Table 1. Method of System Address Setting
[S002 (rotary, black), S003 (2P DIP switch, green or blue)]
Outdoor system
address No. (system address switch)
1 system only
1
1
2
3
4
5
6
7
8
9
10
11
12
Central
13
control
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
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 communications
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.)
2P plug (white): Enables operation in quiet mode.
• The outdoor unit fan and compressor frequencies are subject to limits during operation.
• Low-noise operation is enabled when the relay is turned ON.
G
Example of wiring
• Example of wiring
Quiet mode
CN40
Outdoor unit control PCB
Note 1: The maximum length of the wiring between the outdoor unit PCB and the relay is 2 m.
• Lead wire with 2P plug (special-order part: WIRE K/ 623-161-2098)
• 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).
S003 setting
S002 setting
1P (10s-digit place) 2P (20s-digit place)
0 OFF
1 OFF
2 OFF
3 OFF
4 OFF
5 OFF
6 OFF
7 OFF
8 OFF
9 OFF
0 ON
1 ON
2 ON
3 ON
4 ON
5 ON
6 ON
7 ON
8 ON
9 ON
0 OFF
1 OFF
2 OFF
3 OFF
4 OFF
5 OFF
6 OFF
7 OFF
8 OFF
9 OFF
0 ON
Relay (field supply)
1 1
2 2
OFF
OFF
OFF
OFF
System
OFF
controller
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
2 - 8
Power
External contact
(timer input, etc.: field supply)
Out- Out- Out-
door door door
In- In- In-
door door door
Fig. 1
Out-
door
In-
door