Toshiba MMU-UP0151SH-E Installation Manual page 111

 Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
• Route the wire through the wire connection port of the indoor unit.
• The low-voltage circuit is provided for the control wire and remote controller wire. (Do not connect the high-voltage
circuit.)
1. Remove the cover of the electrical control box.
2. Slit film of the bushing attached to the wire intake, and then pass wires through the slit.
* To take in wires from the rear side, drill a knockout hole and exchange the bushing at side face.
For the hole remained opened by removing the bushing, adhere the attached heat insulator (without slit) from
inside to close the hole.
3. Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electrical control box.
(Do not apply tension to the connecting section of the terminal block.)
4. Mount the cover of the electrical control box without pinching wires.
5. Seal the wire connecting port with the attached heat insulator for sealing of wire connecting port.
(Otherwise dewing may be caused.)
Electrical control box
Two screws
Power supply Control wiring /
terminal block Remote controller terminal block
R(L) S(N) Uv(U1) Uv(U2)
Earth screw
219-EN
Wire intake knockout hole
(Rear side)
Wire intake
Terminal block
P.C. board
R S
(L) (N)
A B
Earth line Power supply wires
(Control wiring)
Cord clamp
See the figure on the left for
system interconnection
wires to the terminal block.
Power supply wire
Treating of wiring connecting port
Seal the wire connecting port with heat insulator as shown on the figure.
If sealing is insufficient, dewing is caused in the Electrical control box.
▼ Seal at wire intake
 Remote controller wiring
Strip off approx. 9 mm the wire to be connected.
Wiring diagram
Terminal block for remote
controller wiring of indoor unit
 Wiring on the ceiling panel
According to the Installation Manual of the ceiling panel, connect the connector (20P: White) of the ceiling panel to
the connector (CN510: White) on P.C. board of the electrical control box.
 Wiring of other optional parts
For the wiring method of other optional parts, refer to the optional parts Installation Manual.
 Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
– 110 –
Adhered surface
Slit
Remote controller wire
Terminal block
(Locally procured)
A
A
Remote controller unit
B
B
220-EN