Panasonic U-8ME2R8 Installation Instructions Manual page 51

Example: Basic Wiring Diagram (2)
• Case of link wiring
No. 1 refrigerant system
System address
(System 1 setting)
(SW1) (SW2)
Number
of outdoor
units (3 units
setting)
Central Controller
Inter-unit
control wiring
No. 2 refrigerant system
No. Z refrigerant system
Inter-unit
control wiring
* See the section "ATTENTION!".
Unit 1 setting (outdoor main unit)
No. of indoor units
(13 units setting)
(SW3)
ON
ON
1 2
(SW4)
OFF
ON
2 3
1
(SW6) Unit
ON
number
ON
setting
(unit 1)
1 2 3
OFF
Outdoor unit
Unit 1
system 1
(Main)
1-1
Indoor unit
Remote
Controller
Unit 1 setting (outdoor main unit)
System address
(System 2 setting)
(SW1) (SW2)
ON
1 2
Number
(SW6)
of outdoor
ON
units (2 units
setting)
1 2 3
Outdoor unit
system 2
Indoor unit
Remote
Controller
Outdoor unit
system Z
ON
Unit 2 setting
OFF
(SW5)
Unit
(SW5)
ON
ON number
ON
setting
(unit 2) 1
2 3 OFF
1
Set the terminating
resistance plug socket
to SHORT side. (CN67)
Inter-outdoor unit
control wiring
Inter-unit control wiring
1-2 1-3
Number of indoor units
(9 units setting)
(SW3)
ON
(SW4)
OFF
ON
ON
1 2 3 OFF
Unit
(SW5)
ON
number
ON
setting
(unit 1)
OFF 2 3
1
Set the terminating
Unit 1
resistance plug socket
(Main)
to OPEN side. (CN67)
Inter-unit control wiring
2-1 2-2
Set the terminating
Unit 1
resistance plug socket
(Main)
to SHORT side. (CN67)
Inter-unit control wiring
To Z refrigerant system indoor unit
51
Setting of terminal plug (CN67)
Refrigerant circuit No. 1
Unit No. 1 (Main) : short-circuit (at shipment)
Unit No. 2 (Sub) : short-circuit (at shipment)
Unit No. 3 (Sub) : short-circuit (at shipment)
Refrigerant circuit No. 2 to Z-1
Unit No. 1 (Main) : open-circuit
Unit No. 2 (Sub) : short-circuit (at shipment)
Refrigerant circuit No. Z
Unit No. 1 (Main) : short-circuit (at shipment)
Unit No. 2 (Sub) : short-circuit (at shipment)
Unit
ON
number
setting
(unit 3)
OFF
2 3
Unit 2
(Sub)
Inter-outdoor unit
control wiring
Remote control
communication wiring
Unit 2 setting
Unit (SW5)
ON
ON number
ON
setting
(unit 2)
1 2 3 OFF
OFF
Unit 2
(Sub)
Inter-outdoor unit control wiring
Remote control
communication wiring
Unit 2
(Sub)
Inter-outdoor unit control wiring
Unit 3 setting
(SW5)
ON
ON
OFF
1 2 3
Unit 3
(Sub)
1-13
2-9