18
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Ceiling concealed duct - Middle static pressure
Indoor unit
Compact
9. Installation
Indoor Units
2) Wiring connection
Connect the wires to the terminals on the control board indi-
vidually according to the outdoor unit connection.
①
Ensure that the color of the wires of outdoor unit and the
terminal No. are the same as those of indoor unit respec-
tively.
②
If the supply cord is damaged, it must be replaced by a
special cord or assembly availible from the manufacturer
of its service agent.
1. Use round crimp-style terminals for connecting
wires to the power supply terminal block. If
unavailable, observe the following points when
wiring.
①
Do not connect wires of different gauge to the same
power supply terminal.
②
Use the specified electric wire. Connect the wire securely
to the terminal. Lock the wire down without applying
excessive force to the terminal.
2. Tightening torque for the terminal screws.
①
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.
②
If the terminal screws are tightened too hard, screws
might be damaged.
3. Do not connect wires of different gauge to the
same grounding terminal. Loose connection may
deteriorate protection.
4. Outside of the unit, keep proper separation
between transmission and power supply wiring.
The equipment may malfunction if subjected to
electrical (external) noise.
5. Never connect power supply wiring to the terminal
block for remote controller wiring. A mistake of
the sort could damage the entire system.
6. Use only specified wire and tightly connect wires
to terminals. Be careful wires do not place exter-
nal stress on terminals. Keep wiring in neat order
and so as not to obstruct other equipment such as
popping open the electric parts box cover. Make
sure the cover closes tight. Incomplete connec-
tions could result in overheating, and in worse
case, electric shock or fire.
NOTE
Terminal block in indoor
1(L)
2(N)
3
Connected to outdoor Unit
• Make sure that the screws of the terminal are fixed
tightly.
WARNING
• Make sure to attach the sealing material or (field sup-
plied) to hole of wiring to prevent the infiltration of foreign
particle from outside. Otherwise 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 cover on the electric parts box fits snugly
by arranging the wires neatly and attaching the electric
parts box cover firmly. When attaching the electric parts
box cover, make sure no wires get caught in the edges.
Pass wiring through the 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, separat-
ing them properly, otherwise electrical noise (external
static) could cause product malfunction.
CAUTION
Electric wire
Round crimp-style terminal
Attach insulation sleeve
Connect wires of the same gauge to both sides
