Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 106

Wiring System Diagrams 1. Specifications Basic wiring diagram for standard control *1 Power supply *2 L1 208 / 230 V, 60Hz, 1PH L2 Indoor unit L1 L2 Inter-unit power line 208 / 230 V, 60 Hz, 1PH *2 Remote Controller WHT BLK 1 1 22 Ground B U1 Ground U2 R1 R2 Grounding Wire A Outdoor unit INV unit L1 L2 L1 Power supply L2 208 / 230 V, 60Hz, 1PH 1 Grounding Wire 2 G U1 U2 Ground *2 Disconnect switch (Field Supply) C Maximum connectable indoor units: 8 Outdoor Unit NOTE 8P terminal board * 1 When the power source is not supplied from the outdoor unit via the 1 inter-unit power line, provide external power source in the indoor unit. * 2 Disconnect Switch may be needed by the National/Local code. ALWAYS COMPLY WITH NATIONAL AND LOCAL CODE REQUIREMENTS. U1 U2 1 2 G L1 L2 Inter-unit Inter-unit Power wiring control wiring power wiring NOTE (1) Refer to Section "Recommended Wire Length and Wire Diameter for Power Supply System" for the explanation of "A", "B" and "C" in the above diagram. (2) The basic connection diagram of the indoor unit shows the 6P terminal board, so the terminal boards in your equipment may differ from the diagram. (3) Refrigerant Circuit (R.C.) address should be set before turning the power on. (4) Regarding R.C. address setting, refer to the installation instructions supplied with the remote controller unit (optional). Auto address setting can be executed by remote controller automatically. Refer to the installation instructions supplied with the remote controller unit (optional). (5) Ensure that the ground shield cable for inter-unit control wiring between outdoor and indoor units should be connected to the outdoor unit. (6) For the inter-unit control wiring between the indoor units, be sure to connect between the shield. Then connect it to the shield of inter-unit control wiring between outdoor and indoor units. (7) Ensure that the ground shield cable for a remote controller should be connected only to the indoor unit. Type F2 Type T2 Indoor Unit 6P terminal board L1 L2 Power supply U1 U2 Inter-unit control wiring R1 R2 Remote control wiring Type U1, T1, F1 5P terminal board Type K1 5P terminal board L1 L2 Power supply U1 U2 Inter-unit control wiring Remote control wiring Type U2 L1 L2 Power supply U1 U2 Inter-unit control wiring Remote control wiring Type K2 5P terminal board L1 L2 U1U2 R1R2 L1 L2 Power supply U1 U2 R1 R2 Inter-unit Remote control control wiring wiring L1 L2 Power supply U1 U2 Inter-unit control wiring 1-98