7
Layout of electrical terminals
How to connect electrical wiring
1) Basic wiring
2) Terminals for remote monitoring
L1:
Power supply (
50 Hz/60 Hz, 220 – 240 V)
L2:
U1:
Inter-unit control wiring. (Low voltage)
U2:
C3:
Auxiliary
C4:
Ground for inter-unit control wiring
A1:
Input for turning on air conditioners concurrently.
A2:
Input for turning off air conditioners concurrently.
A3:
Common input for turning air conditioners on or off.
B1:
On operation state indicator output.
B2:
Alarm indicator output.
B3:
Common indicator output.
L1
L2
B3 B2 B1 A3 A2 A1
U1
U2
C3
C4
CN02
Clamp for electrical wiring
Connector (CN02) for
weekly timer or schedule
timer (optional)
P.C. board
Ground for
power wiring
Fig. 3
OI-737-07EG
REM-HW64S.fm Page 7 Thursday, December 23, 2004 5:42 PM