Panasonic S-160PE1R5B Technical Data & Service Manual page 57

Wiring System Diagrams
• Outdoor unit / 3-phase model
Power supply (230-240V~)
Circuit breaker
protective
Switch
earth
Control cable
Wired remote
Indoor unit
controller
This equipment complies with EN/IEC 61000-3-12 provided that the
short-circuit power Ssc is greater than or equals to *2 kVA at the
interface point between the user's supply and the public system. It is
the responsibility of the installer or user of the equipment to ensure; by
consultation with the distribution network operator if necessary that the
equipment is connected only to supply with a short-circuit power Ssc
greater than or equals to *2 kVA.
Ssc : Short circuit power
The product meets the technical requirements of EN/IEC 61000-3-3.
Decide the length and size of the power supply cable based on the maximum ampere tabulated above in accordance with the national wiring regulations.
Select the fuse(s) and/or circuit breaker(s) from the types and ratings suitable for the maximum ampere tabulated above in accordance with the national wiring regulations.
If capacity of power supply circuit and enforcement are not enough, it can causes the electric shock and a fire.
(1) When linking the outdoor units in a network, disconnect the terminal
extended from the short plug from all outdoor units except any one of
the outdoor units. (When shipping: In shorted condition.)
For a system without link (no wiring connection between outdoor units),
do not remove the short plug.
(2) Do not install the inter-unit control wiring in a way that forms a loop.
Outdoor unit Outdoor unit
Indoor unit Indoor unit
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch
wiring causes mis-address setting.
Outdoor unit Indoor unit
NO
Indoor unit
Power supply (400-415V 3N~)
Circuit breaker
Switch
protective earth
Outdoor unit
: functional earthing
(for the shielded cable)
Outdoor unit
Prohibited
Prohibited
Indoor unit Indoor unit Indoor unit
Indoor unit
Indoor unit
Branch point
• Outdoor unit / single-phase model
Power supply (230-240V~)
Circuit breaker
protective
Switch
earth
Control cable
Wired remote
Indoor unit
controller
Model name Power supply
U-160PZH2R5 230-240V~
U-160PZH2R8 400-415V 3N~
U-180PZH2R8 400-415V 3N~
U-200PZH2R8 400-415V 3N~
U-224PZH2R8 400-415V 3N~
*1 Use a shielded cable for the control cable. Overall extension less than 1000m.
*3 Intended for professional use. Permission from the power supplier is required when installing the
U-160PZH2R8, U-180PZH2R8, U-200PZH2R8 outdoor units that are connected to a 16 A distribution
network.
(4) If branching the inter-unit control wiring, the number of branch points should
be 16 or fewer.
Outdoor unit
Central
Controller
Outdoor unit
Outdoor unit
(5) Use shielded wires for inter-unit control wiring and ground the shield on
both sides, otherwise misoperation from noise may occur. Connect wiring as
shown in Section " Wiring System Diagrams" on page 1-10-2.
(Functional earthing)
1-10-7
Power supply (230-240V~)
Circuit breaker
Switch
protective earth
Outdoor unit
Time delay fuse or *1
circuit capacity Control cable
40 A 0.75 mm²
20 A 0.75 mm²
20 A 0.75 mm²
30 A 0.75 mm²
30 A 0.75 mm²
: Branch point
Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit
Shielded wire
(Functional earthing)
1
*2
Ssc
5950 kVA
*3
*3
*3
1850 kVA
Indoor unit
Indoor unit