3
3
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Control of 3-WAY FLOW LOGIC
4. System Controller / NRSC-FL
Ensure that wiring connections are correct. (Incorrect wiring will
damage the equipment.)
1.
Lines consisting of dots and dashes (
) indicate inter-unit control
wirings.
2.
In. means indoor unit.
3.
Up to 2 system controllers may be connected to 1 control line system.
1 2
1 2
1 2
1 2
1 2
2
1 2
1
2
1 2
1
In.-1
In.-2
In.-3
In.-4
In.-n
C1
C2
C3
C4
L1
L2
C1
C2
C3
C4
L1
L2
2
1 2
1
1 2
2
1
2
1
Outdoor
unit 1
Outdoor
unit 2
Outdoor
unit 3
Outdoor
unit m
Ground
Ground
Power supply
(
50 Hz/60 Hz 220
– 240 VAC)
Ground for control wiring
System
controller
System
controller
Power supply
(
50 Hz/60 Hz 220
– 240 VAC)
Ground for control wiring
Remote
controller
Remote
controller
Remote
controller
m 30
Remote
controller
n 64
1 2
1 2
1 2
1 2
≤
≤
NOTE
CAUTION
■
Basic Wirin
g
Dia
g
ram
Fi
g
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04-218 Airwell-3_p39-60.qxp 01/06/2007 13:13 Page 49