Toshiba RBM-Y0611FUPUL Installation Manual page 10

Safety device
• This circuit must be protected with the required safety devices like a main switch, a slow blow fuse on each
phase and an earth leakage circuit breaker.
• When using residual current operated circuit breakers, be sure to use a high-speed type (0.1 second or less)
30 mA rated residual operating current.
RBM- MCA (A)
Y0611FUPUL 0.5
Y0961FUPUL 0.5
MCA: Min. Circuit Amps
MOCP: Maximum Overcurrent Protection (Amps)
Communication wiring
• 2-core with non-polarity wire is used for wiring of the communication wiring.
• Wire size : AWG 14 to 20
• Up to 984 ft (300 m) (L1 + L2 + L3)
NOTE
• Use copper supply wire.
• Use UL wire rated 600 V for the power supply.
• Use UL wire rated 300 V for the remote controller wires and control wires.
U1 U2 U1 U2
Uv Uv
Indoor unit
A B
L1
Remote controller
The communication wiring and AC 208 - 230 V wires cannot be parallel to contact each other and cannot
be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise
or other factor.
EN-17
01_1145017001-1 EN.indd 9 01_1145017001-1 EN.indd 9
MOCP (A)
15
U1 U2
Uv
A B A B
L2
L3
A B
Flow Selector unit
CAUTION
9
Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
• Pass the wires through the bushing of wire connection holes of the Flow Selector unit.
• Keep a margin (Approx. 3.9" (100 mm)) on a wire to hang down the electrical control box at servicing.
• The low-voltage circuit is provided for the communication wires. (Do not connect the high-voltage circuit)
1
Loosen the cover mounting screws (2 positions) of the electrical control box, and then
remove the cover.
2
Attach the conduit pipe with a lock nut.
3
The cable clamp (accessory) is installed in the underside of the Flow Selector unit.
4
Connect the power supply wire and communication wires to the terminal blocks of the
electrical control box.
5
Tighten screws of the terminal block securely, and fi x the wires with cord clamp attached
to the electrical control box. (Do not apply tension to the connecting section of the terminal
block.)
6
Mount the cover of the electrical control box so that it does not pinch the wires.
EN-18
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