Daikin SV1A25AJV1B - To Connect the Electrical Wiring

16 | Electrical installation
Installer and user reference guide
93
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
Terminal Wiring Screw size Tightening
torque (N•m)
Earth screw Earth wiring M4 1.52~1.86
X2M~X5M Transmission wiring M3.5 0.79~0.97
X6M External output
16.2 To connect the electrical wiring
NOTICE
▪ Follow the wiring diagram (delivered with the unit, located at the inside of the
service cover).
▪ For instructions on how to connect the optional equipment, see the installation
manual delivered with the optional equipment.
▪ Make sure the electrical wiring does NOT obstruct proper reattachment of the
service cover.
1 Remove the service cover. See "14.3.1To open the unit"[468].
2 Strip insulation from the wires.
a b
a Strip wire end to this point
b Excessive strip length may cause electrical shock or leakage
Allowed
Not allowed
3 Connect the interconnection wiring as follows:
Connection for SV4A~SV8A
▪ Connect the terminals F1/F2 (TO IN/D) on the control PCB in the outdoor
unit's switch box to the terminals F1/F2 (Outdoor unit) on terminal block
X2M of the first SV unit. See also the installation manual delivered with the
outdoor unit.
▪ In case of multiple SV units in the system that are connected to the same
interconnection wiring branch line, connect the terminals F1/F2 (SV unit) on
terminal block X2M of the first SV unit to the terminals F1/F2 (Outdoor unit)
on terminal block X2M on the second SV unit. Repeat the same procedure
for further SV units, where each time the terminals F1/F2 (SV unit) on
terminal block X2M on the n
th
SV unit are connected to the terminals F1/F2
(Outdoor unit) on terminal block X2M on the (n+1)
th
SV unit.