• VRV
®
Systems • Outdoor Units
129
• Outdoor Units • VRV
®
Heat Pump • RXYQ5-54P7W1B(A)
7
Wiring diagram
7 - 2 External connection diagram
3
RXYQ5-18P
3D051452B
Power supply
L1 L2 L3 N
L1 L2 L3 N
Main switch
Power supply
L
N
Main switch
Switch
Fuse
L
N
Switch
Fuse
L
N
Switch
Fuse
OUTDOOR UNITS
INDOOR UNITS
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
L
N
Switch
Fuse
2 wires cable
(power line)
L
N
Switch
Fuse
2 wires cable
(power line)
NOTES
1
All wiring, components and materials to be procured on the site must comply with the applicable local
and national codes.
2
Use copper conductors only.
3
As for details, see wiring diagram.
4
Install circuit breaker for safety.
5
All field wiring and components must be provided by licensed electrician.
6
Unit shall be grounded in compliance with the applicable local and national codes.
7
Wiring shown are general points-of-connection guides only and are not intended for or to include all
details for a specific installation.
8
Be sure to install the switch and the fuse to the power line of each equipment.
9
Install the main switch that can interrupt all the power sources in an integrated manner because this
system consists of the equipment utilizing the multiple power sources.
10
If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and
off while the product is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor and other parts.
RXYQ20-32P
3D052261
POWER SUPPLY
L1 L2 L3 N
L1 L2 L3 N
MAIN
SWITCH
POWER SUPPLY
L1 N
MAIN
SWITCH
SWITCH
FUSE
SWITCH
FUSE
SWITCH
FUSE
SWITCH
FUSE
SWITCH
FUSE
SWITCH
FUSE
SWITCH
FUSE
SWITCH
FUSE
SWITCH
FUSE
FUSE
SWITCH
When the power source is supplied to
each outdoor unit individually.
OUTDOOR UNITS
INDOOR UNITS
INDOOR UNITS
[UNIT 1]
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(power line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
2 wires cable
(transmission line)
[UNIT 2]
When the power source is connected
in series between the units.
L1 L2 L3 N
POWER SUPPLY
L1 L2 L3 N
L1 L2 L3 N
MAIN
SWITCH
SWITCH
FUSE
OUTDOOR UNITS
[UNIT 1]
2 wires cable
(transmission line)
[UNIT 2]
L1
N
L1
N
L1
N
L1
N
L1
N
L1
N
L1
N
L1
N
POWER SUPPLY
L1 N
MAIN
SWITCH
NOTES
1
All wiring, components and materials to be procured on the site must comply with the applicable local and
national codes.
2
Use copper conductors only.
3
As for details, see wiring diagram.
4
Install circuit breaker for safety.
5
All field wiring and components must be provided by licensed electrician.
6
Unit shall be grounded in compliance with the applicable local and national codes.
7
Wiring shown are general points-of-connection guides only and are not intended for or to include all details
for a specific installation.
8
Be sure to install the switch and the fuse to the power line of each equipment.
9
Install the main switch that can interrupt all the power sources in an integrated manner because this system
consists of the equipment utilizing the multiple power sources.
10
The capacity of UNIT1 must be larger than UNIT2 when the power source is connected in series between
the units.
11
If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and
off while the product is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor and other parts.
