Daikin FXAQ-M Series Engineering Data page 36

EDUS39-600-F6
PRECAUTIONS
1. Use round crimp-style terminals for connecting wires to the power supply terminal block.
(Refer to Fig. 23)
If unavailable, observe the following points when wiring.
• Do not connect wires of different gauges to the same power supply terminal because loose connections 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: 0.97ft.lbf ±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 following table for the tightening torque of the terminal screws:
Remote controller, Transmission wiring and
Forced off terminal block (6P)
Power supply and Ground terminal block (3P)
3. Do not connect wires of different gauge to the same ground terminal. Looseness in the connection may lessen
protection.
4. Keep transmission wiring at least 5" away from power supply wiring. The equipment may malfunction if subjected to
electrical (external) noise.
5. For remote controller wiring, refer to the INSTALLATION MANUAL OF REMOTE CONTROLLER attached to the
remote controller.
8-2 WIRING EXAMPLE
• Fit the power supply wiring of each unit with a switch and fuse as shown in the following drawing:
COMPLETE SYSTEM EXAMPLE (3 systems)
Power supply
Main
switch
FXAQ-M
Attach insulation sleeve
Round crimp-style terminal
Terminal
Outdoor unit
BS unit
(Only for Heat
recovery system)
Indoor unit
Remote controller
Electric wire
Fig. 23
Size
M3.5
M4
Power supply wiring
Transmission and remote controller wiring
Switch
Fuse
Tightening torque
(ft-lbf)
0.58 – 0.72
0.87 – 1.06
Fig. 24
Installation
35