Panasonic S-36PU1E5A Technical Data & Service Manual page 285

System Control
System control refers to the link wiring connection
for control of simultaneous-operation multi
systems, group control,
and mainsub remote controller control.
Basic wiring diagram 1
Single type and simultaneous-operation multi
system
Simultaneous-operation multi system
Up to 2 (Twin) indoor units can be connected
to 1 outdoor unit for operation.
(However, coordinate the outdoor unit capacity
and the total capacity of the indoor units.)
(It is not possible to connect individual remote
controllers for independent operation.)
Be careful to avoid miswiring when connecting
the wires. (Miswiring will damage the units.)
Basic wiring diagram 2
Group control (when a central control device is not used)
Simultaneous-operation multi system
Up to 2 (Twin) indoor units can be connected to 1 outdoor unit for operation.
(However, coordinate the outdoor unit capacity and the total capacity of the indoor units.)
(It is not possible to connect individual remote controllers for independent operation.)
A maximum of 8 indoor units can be connected to 1 remote controller.
When 2 indoor units are connected to each outdoor unit in the refrigerant system, set the system address
(refrigerant tubing system address) before turning on the remote power switch.
(Refer to section "Setting the outdoor unit system addresses".)
(Set using the system address rotary switch on the outdoor unit control PCB.)
Leakage breaker
Ground
Leakage breaker
System address rotary switch
(Change the setting.)
Leakage breaker
Outdoor unit
L N T 1 2
Inter-unit control wiring
L
Indoor N Indoor
unit unit
U1
U2
Ground Ground
1
2
WHT BLK
1 2
Remote control wiring
(Optional)
Wired remote controller
Ground
Outdoor unit
Leakage breaker
L N
Leakage breaker
L
N
Indoor
U1
unit
U2
1
2
Ground
WHT
Wired remote
controller
System address rotary switch
(Change the setting.)
Outdoor unit
Ground
L N 1 2
L L
N Indoor N
unit
U1 U1
U2 U2
Ground
1 1
2 2
Remote control communication
wiring for group control
1-275
System address rotary switch
(Set to "0" at the time of shipment.)
Inter-unit control wiring
For a simultaneous-operation
1 2
multi system, a maximum of 2
indoor units can be connected
to 1 outdoor unit.
Indoor
unit
Ground
Remote control communication
BLK
wiring for group control
1 2
Remote control wiring
Leakage breaker
Indoor power crossover
wiring – up to 16 units
(no-heater units only)
L
Indoor N
unit
U1
U2
Ground
1
2
1
L
N
U1
U2
1
2