Daikin VRV BSF4Q54TVJ Manuel D'installation page 23

CAUTION
• Use 2-core transmission wiring.
Using the same wire with 3 or more cores to connect 2 or more indoor units may cause them to stop
with an error.
• When shielded wire is used, be sure to ground one side of the shielded wire.
The total wiring length is 4,920 ft. (1,500m) when shielded wire is used.
• Be sure to use ring type crimp style terminals with insulation sleeves to
connect wires to the power supply terminal block. (Refer to Fig . 6 .)
• Do not use with the power supply terminal block and ground terminal
connected to wiring for another circuit.
• Do not use pre-solder stranded wire.
• Connect wires securely so that the terminals will not be subjected to external force.
• Use an appropriately sized screwdriver to tighten the terminal screws.
Use of a screwdriver that is too small could damage the screw head and prevent proper tightening.
• Overtightening the terminal screws could damage the screw.
Refer to the table for the terminal screw tightening torque.
Terminal screw size
M3.5
(Transmission wire terminal block)
M4
(Power supply terminal block)
M4
(Ground terminal)
• Never connect power supply wiring to the transmission wiring terminal block.
Doing so may damage the entire system.
• A daisy chain configuration is required for transmission wiring. Transmission wiring cannot be branched
again after the initial branch.
(Refer to Fig . 7 .)
English
Tightening torque
0.65 ± 0.05 ft·lbf
(0.88 ± 0.08 N·m)
0.97 ± 0.09 ft·lbf
(1.31 ± 0.13 N·m)
1.25 ± 0.12 ft·lbf
(1.69 ± 0.17 N·m)
Branch
Branch after initial branch
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2
Fig . 7
Insulation
sleeve Electric wire
Ring type crimp
style terminal
Fig . 6
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