Daikin REYQ14PY1B [122/137] Wiring diagram

Daikin REYQ14PY1B [122/137] Wiring diagram
3
1
6
VRV Systems • Outdoor Units
121
Outdoor Units • VRV HEAT RECOVERY • REYQ8-48P7Y1B
6 Wiring diagram
6 - 2 External connection diagram
3D057763
REYQ34-48P
When the power source is supplied to
each outdoor unit individually.
Outdoor units
Power supply
Main
switch
Switch Switch
Fuse
Fuse
2 wires cable
(Transmission line)
Unit 1
Unit 2
2 wires cable
2 wires cable
2 wires cable
Power supply
Main
switch
2 wires cable
(Transmission line)
(Transmission line)
(Transmission line)
(Transmission line)
Switch
Fuse
2 wires cable
(Power line)
Switch
Fuse
Switch
Fuse
BS units
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)
Switch
Switch
Switch
Fuse
Fuse
Fuse
2 wires cable
2 wires cable
2 wires cable
(Power line)
(Power line)
(Power line)
Indoor units
2 wires cable
(Power line)
Cooling only unit
Switch
Switch
Fuse
Fuse
2 wires cable
(Power line)
Notes)
1 All wiring, components and materials to be produced 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 breakers for safety.
5 All field wiring and components must be installed by a licensed electrician.
6 The 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 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 other parts.
Power supply
Main
switch
Outdoor units
Unit 1
2 wires cable
(Transmission line)
Unit 2
Power supply
Main
switch
2 wires cable
(Transmission line)
2 wires cable
2 wires cable
2 wires cable
(Transmission line)
(Transmission line)
(Transmission line)
Switch
Fuse
Switch
Fuse
Switch
Fuse
BS units
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
2 wires cable
(Power line)
(Power line)
2 wires cable
(Power line)
2 wires cable
(Power line)
2 wires cable
(Power line)
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
Switch
Fuse
Cooling only unit
2 wires cable
(Power line)
2 wires cable
(Power line)
When the power source is connected
in series between the units .
Switch
Fuse
Unit 3
(Transmission line)
2 wires cable
Unit 3
2 wires cable
(Transmission line)
2 wires cable
(Power line)
Indoor units

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