To Connect The Transmission Wiring - Daikin VRV IV Q+ Series Installer And User Reference Manual

19 | Electrical installation

19.3 To connect the transmission wiring

Installer and user reference guide
114
5~12 HP
a
X1A
Fix to the indicated plastic brackets using field supplied clamping material.
a Wiring between the units (indoor-outdoor) (F1/F2 left)
b Internal transmission wiring (Q1/Q2)
c Plastic bracket
d Field supplied clamps
The wiring from the indoor units must be connected to the F1/F2 (In‑Out)
terminals on the PCB in the outdoor unit.
Tightening torque for the transmission wiring terminal screws:
Screw size
M3.5 (A1P)
In case of single outdoor unit installation
A1P
F F F F Q Q F1
1 2 1 2 1 2
TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT
e
a
F1 F2
b
c
F1 F2
a Outdoor unit PCB (A1P)
b Use the conductor of sheathed wire (2 wire) (no polarity)
c Terminal board (field supply)
d Indoor unit
e Outdoor unit
14~20 HP
b a b
F2 F1 F2 Q1 Q2
d
F1 F2 F1 F2
F1 F2 F1 F2
c
d
Tightening torque (N•m)
0.8~0.96
RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10