.
3
System Controller
Layout of Electrical Terminals
N
L
B3 B2 B1 A3 A2 A1
U1
U2
C3
C4
CN02
1)
N:
(
L:
U1:
U2:
C3:
C4:
2)
A1:
A2:
A3:
B1:
B2:
B3:
A1
CX
TX
A2
A3
B1
B2
B3
Clamp for electrical wiring
Fig. 3-58
Connector (CN02) for
weekly timer or schedule
timer (optional)
P.C. board
Ground for
power wiring
How to connect electrical wiring
Basic wiring
Power supply
50 Hz/60 Hz, 220 – 240 V)
Inter-unit control wiring. (Low voltage)
Auxiliary
Ground for inter-unit control wiring
Terminals for remote monitoring
Input for turning on air conditioners concurrently.
Input for turning off air conditioners concurrently.
Common input for turning air conditioners on or off.
On operation state indicator output.
Alarm indicator output.
Common indicator output.
SYSTEM CONTROLLER
DC voltage pulse
Photocoupler input
Allowable contact voltage
and current : 24 V, 10 mA
Pulse width : 300 ms or more
No-voltage a-contact
static output
Allowable contact voltage
and current : 30 V, 0.5 A
DC24V
COM
Digital
Input
Summary of Contents for SHAKC64AGB
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