Panasonic S-50PY3E - Page 54

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9-5-2. Basic connection 2 : Group control operation (when not using integrated control
system)
●
Before turning on the power (earth leakage circuit breaker), make refrigerant system
auto address setting. (See Section 9-5-5.)
●
Turn on the system 1 indoor and outdoor units (earth leakage circuit breaker) and
make indoor unit auto address setting. (See Section 9-7.)
Two group control
1 - 1 1 - 2
1
2
Refrigerant system 1 Refrigerant system 2
Do not turn on the system 2
power supply yet.
System address
rotary switch
(Reset)
Outdoor unit
Outdoor unit
Remote
controller
Remote control wiring
Remote control wiring
for group control (*1)
Remote control wiring for group control (*1)
Indoor unit
Unit No.1
Unit No.2
No-add yet. No-add yet.
Inter-unit control wiring
System address
rotary switch
(Reset)
Inter-unit control wiring
(In case of 2 or 3 indoor units against
refrigerant system of another outdoor
unit.)
NOTE
When making group control of the different refrigerant
system’s indoor unit, remote control wiring (*1) is necessary.
* It is possible to connect maximum 8 indoor units with one remote
controller. (Including indoor unit without remote control connection
wiring)
* When making group control more than two systems, set up each system
address rotary switch of the outdoor unit and specify the outdoor unit by
using the remote controller or short circuit the auto address pin of the
outdoor unit. Then make auto address setting.
●
While keeping the system 1 power on, turn on the system 2 indoor and outdoor units
(earth leakage circuit breaker).
Then make auto address setting of the indoor unit. (See Section 9-7.)
Two group control
1 - 1 1 - 2 2 - 1 2 - 2 2 - 3
1
2
Refrigerant system 1 Refrigerant system 2
System address
rotary switch
(Reset)
Outdoor unit
Outdoor unit
Remote
controller
Remote control wiring
Remote control wiring
for group control (*1)
Remote control wiring for group control (*1)
Indoor unit
Unit No.1
Unit No.2
Inter-unit control wiring
System address
rotary switch
(Reset)
Inter-unit control wiring
(In case of 2 or 3 indoor units against
refrigerant system of another outdoor
unit.)
NOTE
When making group control of the different refrigerant
system’s indoor unit, remote control wiring (*1) is necessary.
* It is possible to connect maximum 8 indoor units with one remote controller.
(Including indoor unit without remote control connection wiring)
* When making group control more than two systems, set up each system
address rotary switch of the outdoor unit and specify the outdoor unit by
using the remote controller or short circuit the auto address pin of the
outdoor unit. Then make auto address setting.
01_330918_EU_Eng.indb 54 2021/9/9 11:26:58