Kohler — Controller Setup Procedure (Decision-Maker 550)

Installation · Decision-Maker 550 Controller

From a Kohler service manual covering: 1300REZCK, APM802, Decision-Maker 550, M340, MCP 3000, MPAC 1000, MPAC 1500, PM340. Check it applies to your exact model before use.

Applies to: Kohler 1300REZCK

Procedure

1. Go to Menu 14—Programming Mode; enter local programming mode.
2. Enter the controller access code.
3. Go to Menu 13—Communications.
4. Select Protocol Modbus0 or Modbus1.
5. Enter Yes at the Modbus Online Y/N display.
6. Choose Single or Converter connection type.
7. Choose RS-232 or RS-485 for the primary port.
8. Enter the network address (1-246).
9. Select the same baud rate for all devices.
10. Choose remote, local, or off programming mode.
11. Enter the controller access code.

Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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