Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 292

Basic wiring diagram 2 Group control (when a central control device is not used) 6. Test run Simultaneous-operation multi system A maximum of 8 indoor units can be connected to 1 remote controller. Set the system address (refrigerant tubing system address) before turning on the remote power switch. (Refer to "Setting the system addresses" on next page.) (Set using the system address rotary switch on the outdoor unit control PCB.) 2 1 System address rotary switch (Set to "0" at the time of shipment.) System address rotary switch (Set to "0" at the time of shipment.) Power supply Single-phase 230 / 208 V Ground Outdoor unit L1 L2 1 2 G U1 U2 Power supply Single-phase 230 / 208 V Ground Outdoor unit L1 L2 1 2 G U1 U2 Inter-unit power line 230 / 208 V, 60 Hz Inter-unit power line 230 / 208 V, 60 Hz 1 2 Indoor unit U1 U2 RC 1 2 Indoor unit U1 U2 RC WHT BLK 12 (Optional) Remote controller wiring (Field supply) Wired remote controller Fig. 6-7a (Wiring procedure) (1) Connect the remote controller to the indoor unit remote controller wiring. Use the remote controller connection wire coming from the indoor unit, and field-supply wire and a wire joint to complete the connection as shown in Fig. 6-7b. The remote controller connection wire coming from the indoor unit includes a connector, therefore cut off the connector and use the wire joint to connect the wire from the remote controller. (2) Connect the indoor units (U1, U2) and the outdoor units (1, 2). Connect the other outdoor units and indoor units (with different refrigerant systems) in the same way. Connect the inter-unit control wiring to the indoor units (U1, U2) for each refrigerant system. (Inter-unit control wiring) 6 Remote controller crossover wiring for group control Indoor unit 1 RC Indoor unit 2 RC Indoor unit 3 RC WHT BLK 12 (Optional) Wired remote controller Fig. 6-7b 6-8