Toshiba SUPER MMY-MAP0501T8 Instruction Manual page 7

Design of control wiring
Power supply
3 phase
220-240V 50Hz
220V~60Hz
Earth
[Central remote controller] (Option)
TCB-SC642TLE (For Line 64)
• Wire specification, quantity, size of crossover wiring and remote controller wiring
Name
Crossover wiring
(indoor-indoor / indoor-outdoor / outdoor-indoor
control wiring, central control wiring)
Remote controller wiring
(1) The crossover wiring and central control wiring use 2-core non-polarity transmission wires. Use 2-core shield
wires to prevent noise trouble. In this case, for the system grounding, close (connect) the end of shield wires,
and isolate the end of terminal. Perform the ground of wires at one side only for the header outdoor unit.
(2) Use 2-core and non-polarity wire for remote controller. (A, B terminals)
Use 2-core and non-polarity wire for wiring of group control. (A, B terminals)
(Open)
Transmission wire for control
between outdoor units
Transmission wire for control
between outdoor unit and
indoor unit
Q'ty
2 cores
2 cores
Connection of shield wire must be connected
(Connected to all connecting sections in each outdoor unit)
Connection of shield wire must be connected
(Connected to all connecting sections in each indoor unit)
Size
Up to 500m Up to 1000m
1.25mm 2
2
0.5 to 2.0mm —
4
Standard
remote controller
Specification
1000 to 2000m
2.0mm 2 Shield wire
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