Specifications

EDUS281104 Installation of indoor unit
Installation of indoor / outdoor unit 97
3PN06240-3E
12
WARNING
• Never connect power supply wiring to the terminal block for
remote controller wiring as this could damage the entire sys-
tem.
• Use only specified wire and connect wires to the terminal
tightly. Be careful wires do not place external stress on termi-
nals. Keep wires in neat order so as to not obstruct other
equipment. Make sure that the electric box lid fits tightly.
Incomplete connections could result in overheating and, in
worse case, result in electric shock or fire.
NOTE
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.)
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.
3. Do not connect wires of different gauge to the same ground
terminal. Looseness in the connection may deteriorate pro-
tection.
4. Outside of the unit, keep transmission wire at least
5 in. away from power supply wire. The equipment may mal-
function if subjected to electrical (external) noise.
5. For remote controller wire, refer to the “INSTALLATION
MANUAL OF REMOTE CONTROLLER” attached to the
remote controller.
10-2 WIRING EXAMPLE
• Fit the power supply wire of each unit with a switch and fuse
as shown in the drawing.
COMPLETE SYSTEM EXAMPLE
1. When using 1 remote controller for 1 indoor unit.
(Normal operation)
2. When using 2 remote controllers for 1 indoor unit.
NOTE
1. A single switch can be used to supply power to units on the
same system. However, branch switches and branch circuit
breakers must be selected carefully.
2. Do not ground the equipment on gas pipes, water pipes or
lightning rods, or crossground with telephones. Improper
grounding could result in electric shock.