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• VRV Systems • Outdoor Units
75
• Outdoor Units • HEAT PUMP • RWEYQ-MY1
6
Wiring diagram
6 - 2
External connection diagram
RWEYQ10,20,30MY1-HEAT PUMP
3D048824
L1 L2 L3 N
Power supply
Main
switch
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
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)
OUTDOOR UNITS
INDOOR UNITS
INDOOR UNITS
[ Unit 1 ]
[ Unit 2 ]
[ Unit 3 ]
L1 L2 L3 N
Power supply
Main
switch
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
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)
OUTDOOR UNITS
[ Unit 1 ]
[ Unit 2 ]
[ Unit 3 ]
When the power source is supplied to each outdoor unit individually.
When the power source is connected in series between the units.
NOTES
1
All wiring, components and materials to be procured on 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 a 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 it 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 UNIT 1 must be larger than UNIT 2 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 ohter parts.