Panasonic S-M20PY3E Installation Instructions Manual page 58

9-6-3. Basic connection 3 : Example of link wiring (when using integrated control system)
● Turn on the power of each system, specify a different system address for each system
and make auto address setting from each remote controller. (See Section 9-7.)
Refrigerant system 1
Unit No.1
Outdoor unit
Inter-unit control
Connection cable
wiring
between outdoor
and indoor unit
Indoor unit
1 - 1
Remote control
Remote control
wiring
wiring for group
control
Remote controller
9-6-4. Basic connection 4 : Group control with different refrigerant unit
● * Remote control inter-unit control wiring is necessary in all indoor units.
Make auto address setting following the procedure "9-6-2. Basic connection 2".
3-LINE CONNECTION system 1
Set the system address to 1.
Unit No.1
Outdoor unit
Indoor unit 1 - 1
Remote control
wiring
Remote controller
(main)
* If two (2) remote controllers are used, one (1) remote controller is set to "main" and the other is set to "sub". (See Section 9-11.)
* In the case of 2-line connection system, auto address setting from the outdoor unit can be also made by specifying address
with the rotary switch and short-circuiting the auto address pin. (See Section 9-8.)
Refrigerant system 2
Unit No.2
1 - 2 2 - 1
Remote controller
Twin
* It is possible to connect maximum 8 indoor units with one remote controller.
Select the settings for the
system address by the
remote controller. (See
Section 9-7.)
Connection cable between
outdoor and indoor unit
1 - 2
1 - 1 1 - 2
Remote control wiring for
group control
Connection cable between
outdoor and indoor unit
Inter-unit control wiring
2 - 2 2 - 3
Remote control wiring
for group control
Remote control wiring
Triple
2-LINE CONNECTION system 2
Set the system address to 2.
Unit No.2
Inter-unit control wiring
2 - 1
2 - 1
Remote control wiring for
group control
Twin
58
Refrigerant system 3
Unit No.3
Integrated control system
Connection cable between
outdoor and indoor unit
Inter-unit control wiring
3 - 1 3 - 2
Remote control wiring
for group control
Remote control wiring
Remote controller
Select the settings for the
system address by the remote
controller. (See Section 9-7.)
2 - 2 2 - 3 2 - 4
2 - 2 2 - 3
Remote controller
(sub)
3 - 3 3 - 4
Double-twin
3 - 1 3 - 2 3 - 3
Remote control
wiring
Double-twin
3 -