Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 203

7-30. Precautions 1. Specifications Request that the customer be present at the time the test run is performed. Explain the Operating Instructions to the customer, and then have the customer actually operate the system. Be sure to pass the manual and warranty certificate to the customer. Verify that the AC 208 / 230 V wiring is not connected to the terminal plate which is used to connect the inter-unit control wiring. * If AC 208 / 230 V is accidentally applied to this terminal plate, the fuse (0.5A for both indoor and outdoor units) on the inter-unit control PCB will be tripped in order to protect the PCB. Correct the wiring connections, then disconnect the 2P connectors (indoor unit: blue, OC, CN40; outdoor unit: blue, OC) which are connected to the PCB and connect the other 2P connectors (indoor unit: brown, EMG, CN44; outdoor unit: brown, EMG). (See the figure below.) If operation is still not possible with the brown connectors connected, cut the varistor (black) (for both the indoor and outdoor units). (Be sure to turn OFF the power before performing this work.) Indoor unit control PCB Outdoor unit control PCB Fuse 0.5A 2P connector (blue) 2P connector (brown) SW103 TEST OFF Varistor (black) ON VA002 CHK (2P plug) Varistor (black) Fuse 1 0.5A Serial 1 connector (blue) Serial 2 connector (brown) 1-195