Panasonic 26PEU1U6 Installation Instructions - Page 51

5-17. Wiring System Diagram for Group Control This diagram shows when several units (maximum of 8) are controlled by a signal receiving unit (main unit). In this case, a signal receiving unit can be connected at any indoor unit. Wiring procedure Wire according to the diagram at left: Address setting is executed automatically when the outdoor unit is turned on. Each successive unit will respond at one-second intervals following the order of the group address when the remote controller is operated. Group control using 2 signal receiving units It does not matter which of the 2 signal receiving units you set as the main controller. Remote Controller (main) (sub) 12 Connection wiring for group control 12 Wire joint 12 Indoor unit No. 1 U1 U2 12 Indoor unit No. 2 U1 U2 12 Indoor unit No. 3 U1 U2 12 Indoor unit No. 8 U1 U2 When using multiple signal receiving units (up to 2 can be used), one is the main signal receiving unit and the other is the sub-signal receiving unit. To set up a sub-signal receiving unit, change its remote control address connector (RCU. ADR) located on its PCB from main to sub position (main: when shipped from factory). U1 U2 U1 U2 U1 U2 Outdoor unit Outdoor unit Outdoor unit U1 U2 Outdoor unit : Ground (earth) 51 1BOBTPOJD@1"$J@*OEPPS6OJU@64MF