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10-22. Automatic Address Setting
10-22-1. Basic wiring diagram
●
Link wiring
●
A terminal plug (black) is attached to each of the outdoor unit control PCBs. At only one outdoor unit, leave the
terminal plug short-circuit socket on the “Yes” side. At all the other outdoor units, change the socket (from “Yes”
to “No”).
●
A maximum of 8 indoor units can be connected to 1 remote controller for group control.
NOTE
3-1
3-2
1
1-1
1-2
2-1
2-2
2
3
2-3
3-3
3-4
Refrigerant system No. 1
Refrigerant system No. 2
Refrigerant system No. 3
(Change setting to “1”)
(Change setting to “2”)
(Change setting to “3”)
No. 1
No. 2
No. 3
Inter-unit control
wiring
Inter-unit control
wiring
Terminal plate 1, 2
Terminal plate 1, 2
Outdoor unit
Indoor unit
Remote controller
Remote controller crossover
wiring for group control
Remote controller
Remote controller
Change the terminal
plug (black) short-
circuit socket
Change the terminal
plug (black) short-circuit
socket
System address
rotary switch on
the outdoor unit
PCB
Automatic address setting from the outdoor unit CAFP, SPAFP, DSAFP type
Case 1
●
If the power can be turned ON separately for the indoor and outdoor units in each system, the indoor unit
addresses can be set without running the compressor.
(1) Turn on the indoor and outdoor unit power for refrigerant system 1.
Press and hold the automatic address setting button (black) for 1 second or longer at the outdoor unit where the
power was turned ON.
↓
Communication for automatic address setting begins.
↓
LED 1 and 2 on the outdoor unit control PCB blink alternately, and turn OFF when address setting is completed.
↓
<Approximately 4 – 5 minutes are required.>
(2) Next, turn ON the power only at the indoor and outdoor units in a different system. Press the automatic address
setting button (black) on the outdoor unit.
↓
LED 1 and 2 on the outdoor unit control PCB blink alternately, and turn OFF when address setting is completed.
↓
Repeat the same procedure for each system and complete automatic address setting.
↓
(3) Operation using the remote controller is now possible.
Fig. 10-19
04-393 DC INV Tech p 64-110 12/13/04 11:35 AM Page 85