To Connect The Transmission Wiring; To Finish The Transmission Wiring - Daikin RXYTQ8T7YF Installer And User Manual

8 HP
A
b a
A
a Transmission wiring (possibility 1)
b Transmission wiring (possibility 2)
with tie wraps.
c Tie wrap. Fix to factory-mounted low voltage wiring.
d Tie wrap.
(a) Knockout hole has to be removed. Close the hole to avoid
small animals or dirt from entering.
8 HP
a b
L1 L2 L3 N
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
6.8.6

To connect the transmission wiring

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 of the transmission wiring terminals:
RXYTQ8~16T7YF
VRV IV system air conditioner
4P388989-1B – 2016.02
10~16 HP
c
c
c
d
A
b a
(a)
(a)
. Fix to pipe insulation
10~16 HP
a b
d
c
d
c
d
c
c
d
Screw size
M3.5 (A1P)
c
In case of single outdoor unit installation
c
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
d
F1 F2 F1 F2
b
c
F1 F2 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
In case of multi outdoor unit installation
a
A1P
F1 F2 F1 F2 Q1 Q2
e f d
a Unit A (master outdoor unit)
b Unit B (slave outdoor unit)
c Unit C (slave outdoor unit)
d Master/slave transmission (Q1/Q2)
e Outdoor/indoor transmission (F1/F2)
f Outdoor unit/other system transmission (F1/F2)
▪ The interconnecting wiring between the outdoor units in the same
piping system must be connected to the Q1/Q2 (Out Multi)
terminals. Connecting the wires to the F1/F2 terminals results in
system malfunction.
▪ The wiring for the other systems must be connected to the F1/F2
(Out-Out) terminals of the PCB in the outdoor unit to which the
interconnecting wiring for the indoor units is connected.
▪ The base unit is the outdoor unit to which the interconnecting
wiring for the indoor units is connected.
6.8.7

To finish the transmission wiring

After installing the transmission wires inside the unit, wrap them
along with the on-site refrigerant pipes using finishing tape, as
shown in figure below.
a c b e
a Liquid pipe
b Gas pipe
c Insulator
d Transmission wiring (F1/F2)
e Finishing tape
6 Installation
Tightening torque (N•m)
0.80~0.96
F2 F1 F2 Q1 Q2
d
F1 F2
F1 F2
b c
Q1 Q2 Q1 Q2
d
d
Installer and user reference guide
29