Daikin EWAD900BJYNN/A [302/346] Changing the pco expansion board

Procedure for the Changing and Configuration of the Expansion I/O Board (Optional) ESIE07-04

3–46 Part 3 – Troubleshooting

9.2 Changing the PCO² Expansion Board

To change the PCO² expansion board, proceed as follows:

Remark: If the following screen appears:

please check:

P dipswitch address of the expansion board

P wiring of the tLAN.

Step Action

1 Switch off the power supply to the chiller.

2 Remove the old expansion board driver

3 Place the new expansion board in the same way as the old expansion board.

4 Check if the dipswitch address is on 5 (on/off/on/off).

5 Switch on the power to the chiller.

6 Go to the manufacturer menu (menu + prog)

7 Go to the screen:

8 Select refresh – “Yes”

Next screen will appear:

When “press enter to exit” appears, the configuration is finished.

9 Press enter to exit.

RS484 net

Refresh

Time check

000

Wait please

Exp Recognized

. . . . .

Wait please

Exp not linked

Press enter to exit