English
9
[ 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 %)
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-
ing terminal. Looseness in the connection may deteriorate
protection.
4. Outside of the unit, keep transmission wiring at least 50 mm
away from power supply wiring. The equipment may mal-
function if subjected to electrical (external) noise.
5. For remote controller wiring, refer to the “INSTALLATION
MANUAL OF REMOTE CONTROLLER” attached to the
remote controller.
6.
Never connect power supply wiring to the terminal
block for remote controller wiring. A mistake of the sort
could damage the entire system.
7. Use only specified wire and tightly connect wires to termi-
nals. Be careful wires do not place external stress on termi-
nals. Keep wiring in neat order and so as not to obstruct
other equipment such as popping open the electric parts
box lid. Make sure the lid closes tight. Incomplete connec-
tions could result in overheating, and in worse case, electric
shock or fire.
9-2
SETTING OF STATIC PRESSURE
CHANGEOVER CONNECTOR
• According to the system static pressure requirement, reposi-
tion the adaptors of PC board inside the electric parts box as
shown in the below drawings.
NOTE
• The unit is factory set for standard static pressure (X4A) at
the time of shipping.
Terminal
Size
Tightening torque
Terminal block for remote controller (6P)
M3.5
0.79 – 0.97N·m
Power supply terminal block (2P)
M4
1.18 – 1.44N·m
Ground terminal
M4
1.44 – 1.94N·m
Electric wire
Round crimp-style terminal
Attach insulation sleeve
L N
P
1
P
2
F
1
F
2
T
1
T
2
Clamp (accessory)
Adaptor for PC board
Power supply
terminal block
Remote controller
wiring (*)
Field supplied wire
Indoor PC
board.
Transmission wiring (*)
Power supply and
ground wiring (*)
Terminal block for
remote controller wiring
View as seen from A
Clamp
(accessory)
Static pressure
Low
Standard
Model
FXSN20 . 25 . 32 .
40 . 50AV1
FXSN63 . 100AV1
Not available
Low
Standard
High
High
Black
X7A
X4A
X3A
Stand-
ard
High
Blue
X6A
X5A
Low
Black
X7A
X4A
X3A
Stand-
ard
High
Blue
X6A
X5A
Low
Black
X7A
X4A
X3A
Stand-
ard
High
Blue
X6A
X5A
Low
Black
X7A
X4A
X3A
Stand-
ard
High
Blue
Black
X7A
X4A
X3A
Stand-
ard
High
Blue
01_EN_3P233622-5F.fm Page 9 Thursday, December 18, 2008 4:21 PM
