Daikin VRV IV RYYQ10T7Y1B Series - 5.7 Connecting the electrical wiring; 5.7.1 Field wiring: Overview; 5.7.2 Guidelines when knocking out knockout holes; 5.7.3 To route and fix the transmission wiring

5 Installation
Installation and operation manual
23
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV system air conditioner
4P370473-1C – 2016.07
a
b
dd d
c
b g g
h h
c
fffh
eee
a
h h h
h h
i
a Field power supply (with earth leakage protector)
b Main switch
c Earth connection
d Outdoor unit
e Indoor unit
f User interface
g Indoor power supply wiring (sheathed cable) (230V)
h Transmission wiring (sheathed cable) (16V)
i Outdoor power supply wiring (sheathed cable)
Power supply 3N~50Hz
Power supply 1~50Hz
Earth wiring
5.7.2 Guidelines when knocking out knockout
holes
▪ To punch a knockout hole, hit on it with a hammer.
▪ After knocking out the holes, we recommend removing any burrs
and paint the edges and areas around the holes using repair paint
to prevent rusting.
▪ When passing electrical wiring through the knockout holes.
prevent damage to the wires by wrapping the wiring with
protective tape, putting the wires through field supplied protective
wire conduits at that location, or install suitable field supplied wire
nipples or rubber bushings into the knockout holes.
a
b c
d
a Knockout hole
b Burr
c Remove burrs
d If there are any possibilities that small animals enter the
system through the knockout holes, plug the holes with
packing materials (to be prepared on-site)
5.7.3 To route and fix the transmission wiring
Transmission wiring can be routed through the front side only. Fix it
to the upper mounting hole.
b a
A
b a
c
c
c
d
c
d
c
8~12 HP 14~20 HP
A
A
a Transmission wiring (possibility 1)
(a)
b Transmission wiring (possibility 2)
(a)
. Fix to pipe insulation
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.
L1 L2 L3 N
c
d
c
d
d
d
c
c
a b a b
8~12 HP 14~20 HP
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
5.7.4 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: