Short Circuit Operation Of Controller - Daikin LXE10E-A14 Service Manual

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6.5.2 Short circuit operation of controller

Interrupt power supply for controller on the terminal board in control box, while operate the
devices required to be operated by connecting directly with short circuit connectors.
(1) Cooling operation
1. Disconnect the power supply connector CN5 (red connector).
2. Remove short circuit connector on the back of CPU/IO board case.
3. Connect the blue 8-pin short circuit connector (SCC1-1) with emergency 8-pin port (CN8) on the
terminal board.
Connect blue 2-pin short circuit connector (SCC2) with "cool" side of emergency connector (CN9).
4. Compressor can not be operated if the power supply wiring is in reverse phase.
In this case, change connection of white connector SCC3 with CN-C1 to connection with CN-C2.
CPU/IO
BOARD CASE
BLUE CONNECTOR
SCC1-1
SCC2
RED CONNECTOR
SCC1-2
RED CONNECTOR
CN-C2
CN-C1
CONNECT
BLUE CONNECTOR
(SCC1-1) (SCC2)
EMERGENCY
(COOL):BLUE (COOL)
CN8 CN9
WHITE CONNECTOR
SCC3
CN10
6-14
TB1
SCC1 : SHORT CIRCUIT CONNECTOR 1
SCC2 : SHORT CIRCUIT CONNECTOR 2
SCC3 : SHORT CIRCUIT CONNECTOR 3