Specifications

RXYQQ8~20T7Y1B
VRV IV System Air Conditioner
4P345099-1 – 2013.04
Installation and operation manual
25
1 Liquid pipe
2 Gas pipe
3 Insulator
4 Transmission wiring (F1/F2)
5 Finishing tape
For the above wiring, always use vinyl cords with 0.75 to
1.25 mm
2
sheath or cables (2-core wires). (3-core wire cables
are allowable for the cooler/heater changeover user interface
only.)
Transmission wiring routing to the unit and inside the unit.
Transmission wiring can be routed through the front side only:
 Fix transmission wire with tie wrap to low voltage wiring. See
figures below, item 6.
 Fix transmission wire with tie wrap to heat exchanger fixing plate
(through oblong hole). See figures below, item 2.
 Possible transmission wire entrance hole (close hole to avoid
bugs/dirt from entering). See figures below, item 4.
 Possible transmission wire entrance hole (close hole to avoid
bugs/dirt from entering). Fix transmission wiring to pipe
insulation with tie wraps. See figures below, item 5.
 Inside the electronic component box, the transmission wire
should be fixed on several locations with tie wraps to low voltage
wiring. See figures below, items 2 and 6.
1 Transmission wiring
2 Fix wiring with tie wrap
3 Possible power supply wire entrance hole
(6)
4 Possible transmission wire entrance hole
(6)
5 Possible transmission wire entrance hole.
(6)
Fix wiring to
pipe insulation with tie wraps
6 Inside the electronic component box, the wiring should be
fixed on several locations with tie wraps to the factory
mounted low voltage wiring.
7 Factory mounted low voltage wiring
12.6.2. Power supply wiring routing
Power supply wire routing to the unit and inside the unit. The power
supply wiring can be routed from the front and left side.
 Left side. The metal conduit hole on the left (D) can be opened
as follows:
1 Power supply inside a conduit
2 Conduit
3 Power supply wire
4 Knockout hole
NOTICE
 Be sure to keep the power line and transmission line
apart from each other. Transmission wiring and power
supply wiring may cross, but may not run parallel.
 Transmission wiring and power supply wiring may not
touch internal piping (except INV PCB cooling pipe) in
order to avoid wire damage due to high temperature
piping.
 Firmly close the lid and arrange the electrical wires so
as to prevent the lid or other parts from coming loose.
RXYQQ8~12
6
2
6
7
4+5 343
2
1
A
A
(6) Knockout hole has to be removed. Close the hole to avoid small animals
or dirt from entering.
RXYQQ14~20
4+5 343
A
A
6
2
2
7
1
1
2
3
4