Panasonic S-45PU1E5 Technical Data & Service Manual page 342

1
Basic wiring diagram 2
Group control (when a central control device is not used)
A maximum of 8 indoor units can be connected to a single remote controller.
Example: In a refrigerant system where 2 or 3 indoor units are connected to 1 outdoor unit, set the new system
address (refrigerant system address) before turning ON the remote power switch.
(Refer to section "Setting the outdoor unit system addresses" for K1 type.)
(Set using the system address black rotary switch on the outdoor unit control PCB.)
1. Wall mounted units do not include a terminal board for connecting a remote controller.
2. For group control of wall mounted units, connect the remote control communication wiring to the remote
controller connector (2P) on the main unit, as shown in the diagram.
(Wiring procedure)
(1) Set the No. 1 wall mounted indoor unit so that it can be operated by the wireless remote controller.
(This is set at the time of shipment.)
On the indoor unit control PCBs, set the No. 2 and following wall mounted units to the sub remote controller.
(Refer to section "Indoor unit remote controller main-sub setting" for K1 type.)
(2) Connect the crossover wiring to 1 and 2 on the remote control wiring terminal boards of the No. 1 indoor unit
and the other indoor units (as shown in Basic wiring diagram 2).
(3) Connect the inter-unit control wiring to 1 and 2 on the No. 1 indoor unit terminal board, and to 1 and 2 on the
outdoor unit terminal board. Connect the wiring in the same way from the other outdoor units to U1 and U2 on the
indoor units terminal boards (different refrigerant system).
(4) Perform automatic address setting from the outdoor unit. (For the automatic address setting procedure, refer to
section "Automatic address setting from the outdoor unit" for K1 type.)
NOTE
* Models with auxiliary heaters cannot be used for "crossover wiring" of the indoor unit power wires.
(Use a pull box to divide the wiring.)
* Be sure to use the indoor unit temperature sensor (body sensor) when using this control. (Status at shipment)
System address rotary switch
(Change the setting to "1".)
Leakage breaker
Outdoor unit
L N 1 2
Leakage
breaker
Leakage breaker
Inter-unit control wiring
Wall
L
Indoor
mounted
N
unit
type
No. 2
U1
Indoor
Ground
U2
unit
No. 1
Ground
Connection to lead
wires
(Black / White)
System address rotary switch
(Change the setting to "2".)
Outdoor unit
L N 1 2
Ground
L L
Indoor
N N
unit
No. 3
U1
U1
Ground U2
U2
1 1
2 2
Remote control communication
wiring for group control
(field-supply wiring)
(Thickness 0.5 – 2.0 mm
total length 200 m or less)
1-332
Leakage breaker
Indoor power crossover wiring
– up to 16 units
(no-heater units only)
L
Indoor
N
unit
No. 4
U1
Ground U2
1
2
2
,
Up to 8 units can be set
for group control