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SMMS 1-Way Cassette SH Type
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 indoor unit.
• Keep a margin (Approx. 100 mm) on a wire to hang down the electrical control box at servicing or other purpose.
• The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)
• Remove the cover of the electrical control box.
• 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.
• 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.)
• Mount the cover of the electrical control box without pinching wires.
• 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
Indoor / outdoor control
For power
wire and wired remote
supply
controller wire
R(L) S(N)
U
U
A
1
2
Earth screw
25-EN
Installation Manual
Wire intake knockout hole
(Rear side)
Wire intake
Terminal block
P.C. board
R
S
(L)
(N)
B
Earth line
Power supply wire
Cord clamp
SMMS 1-Way Cassette SH Type
– 13 –
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
A
B
Address setup
Set up the addresses as per the Installation Manual supplied with the outdoor unit.
Adhered surface
Slit
Terminal block
Remote
A
controller
B
unit
Remote controller wire
(Locally procured)
Installation Manual
26-EN
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