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System diagrams
• 1 remote controller
Indoor unit
Remote controller
A
• 4 remote controllers
Remote controllers
Master Slave
Indoor unit
B C
Slave
D
Slave
E
NOTES:
• A, B, C, D, E: Remote controller cable (For details of controller cable specifications, refer to
"Controller cable" in Chapter 6. SYSTEM DESIGN on page 06-63.)
• A ≤ 500 m, B + C + D + E ≤ 500 m
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Electrical wiring
1 remote controller:
When there is
a functional
grounding
Remote controller
Indoor unit
Y1
Y1
Y2
Y2
Y3
2 remote controllers:
When there is
a functional
grounding
Remote controller Remote controller
Y1
Y1
Y2
Y2
Y1
Y2
Y3
Indoor unit
Group control:
When there is
a functional grounding
Remote controller
Indoor units
Y2
Y2 Y2 Y2 Y2Y3 Y3 Y3 Y3
Y1
Y1 Y1 Y1 Y1
2-12. Simple remote controller (Without operation mode: UTY-RHR) - (05-84) - 2. Control units
CONTROL
SYSTEM
CONTROL
SYSTEM