To Connect The Electrical Wiring To The Outdoor Unit - Daikin VRV 5-S User Reference Manual

20 | Electrical installation

20.2 To connect the electrical wiring to the outdoor unit

Installer and user reference guide
124
CAUTION
▪
When connecting the power supply: connect the earth cable first, before making
the current-carrying connections.
▪
When disconnecting the power supply: disconnect the current-carrying cables
first, before separating the earth connection.
▪
The length of the conductors between the power supply stress relief and the
terminal block itself MUST be as such that the current-carrying wires are
tautened before the earth wire is in case the power supply is pulled loose from
the stress relief.
NOTICE
▪
Follow the wiring diagram (delivered with the unit, located at the inside of the
service cover).
▪
Make sure the electrical wiring does NOT obstruct proper reattachment of the
service cover.
1 Remove the service cover. See
2 Strip insulation (20 mm) from the wires.
a
a Strip wire end to this point
b An excessive strip length may cause electrical shock or leakage
3 Connect the transmission wiring as follows:
X3M
F1 F2
a
b
a
b
a
a Use the conductor of sheathed wire (2 wire) (no polarity)
b Terminal board (field supply)
Note: The indoor F1/F2 interconnection cable MUST be shielded:
- 8 HP: the shielding is earthed (only at outdoor unit side of the cable) via the
middle screw on the terminal X3M.
- 10+12 HP: the shielding is earthed (only at outdoor unit side of the cable) via a
metal P-clamp. Strip the insulation up to the shielding mesh, to provide full
contact of the earth with the shielding. See illustration below:
a
"17.2.2 To open the outdoor
b
8 HP 10+12 HP
X1M (A1P)
SFB
TO IN/D
F1 F2
a a
F1 F2 F1 F2
a a
F1 F2 F1 F2
unit" [
TO MULTI
TO OUT/D
UNIT
F1 F2 Q1 Q2
a
F1 F2
a
F1 F2
VRV 5-S system air conditioner
4P752782-1A – 2024.02
4
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