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9.
WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER
9-1
HOW TO CONNECT WIRINGS
• Remove the electric parts box lid and connect the wiring.
Electric parts box
Inter-unit wiring,
ground wiring (*)
(Field wiring)
Remote controller wiring (*)
(Field wiring)
NOTE
• For electric parts box wiring, also see "Electric Wiring Dia-
gram" label.
• Fasten the wiring with accessory clamp (6).
• If mounting a remote con-
troller on the unit, wire as
shown in the figure on the
right.
• If wiring from the piping side, wire as shown in the figure
below.
Pass through
hole of opposite
frame panel in
same manner.
Inter-unit wiring,
ground wiring (*)
English
Clamp fastener
Inter-unit
wiring (*)
Clamp
(accessory)
Cut off excess after fastening.
Pass through hole
of remote
controller
fastening plate.
Remote
controller wiring
Remote
controller
wiring (*)
Electric parts box
Fasten with accessory clamp (6).
CAUTION
• Be sure to attach the sealing material or putty (field supplied)
to hole of wiring to prevent the infiltration of water as well as
any insects and other small creatures from outside. Other-
wise a short-circuit may occur inside the electric parts box.
• When clamping the wires, be sure no pressure is applied to
the wire connections by using the included clamping material
to make appropriate clamps. Also, when wiring, make sure
the lid on the electric parts box fits snugly by arranging the
wires neatly and attaching the electric parts box lid firmly.
When attaching the electric parts box lid, make sure no wires
get caught in the edges. Pass wiring through the wiring
through holes to prevent damage to them.
• Make sure the remote controller wiring, the wiring between
the units, and other electrical wiring do not pass through the
same locations outside of the unit, separating them by at
least 50mm, otherwise electrical noise (external static) could
cause mistaken operation or breakage.
[ PRECAUTIONS ]
1. Use round crimp-style terminals for connecting wires to the
power supply terminal block.
If unavailable, observe the following points when wiring.
• Do not connect wires of different gauge to the same
power supply terminal.
(Looseness in the connection may cause overheating.)
• Use the specified electric wire. Connect the wire securely
to the terminal. Lock the wire down without applying
excessive force to the terminal. (Tightening torque:
131N·cm ±10 %)
Attach insulation sleeve
Round crimp-style terminal
2. Tightening torque for the terminal screws.
• Use the correct screwdriver for tightening the terminal
screws. If the blade of screwdriver is too small, the head
of the screw might be damaged, and the screw will not be
properly tightened.
• If the terminal screws are tightened too hard, screws
might be damaged.
• Refer to the table below for the tightening torque of the
terminal screws.
Terminal
Terminal block for remote controller (2P)
Inter-unit wiring terminal block (3P)
Ground terminal
Electric wire
Size
Tightening torque
M3.5
0.79 – 0.97N·m
M4
1.18 – 1.44N·m
M4
1.44 – 1.94N·m
7
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