Service manual

CULLIGAN HOUSEHOLD & COMMERCIAL CIRCUIT BOARDS

Converting the Culligan Mark 100 Generation I Circuit Board to a Generation III Circuit Board

Familiarize yourself with the replacement procedures and component parts before attempting any repair.

WARNING! DISCONNECT ALL ELECTRICAL POWER TO THE UNIT BEFORE SERVICING.

INSTALLATION

1. Remove the timer cover by twisting the four, quarter turn Phillips screws.

2. Remove the power, microswitch and motor leads from the board. Remove the motor leads from the motor.

WARNING! TO PREVENT DAMAGE TO THE LEADS, PULL THE LEADS BY GRIPPING THE

CONNECTING TERMINALS ONLY.

3. Remove the screws holding the board to the case (Fig.1).

4. Mount the transformer to the backplate – see Fig. 2 for transformer location. Two 11/64" holes need to be drilled

where the screws are to be inserted in to the backplate (the screws provided are thread cutting screws).

5. Mount the terminal strip to the backplate – see Fig. 2 for terminal strip location. A 1/8" hole needs to be drilled

where the screw is to be inserted in to the backplate (the screw provided is a thread cutting screw).

6. Cut the white and black wires from the power cord that is attached to the seven-pin connector (cut the wires as close

to the connector as possible). Cut the green wire from the connector and remove it from the grounding screw.

7. Connect the new motor wire harness to the motor.

8. Refer to the wiring schematic for connecting the power cord wires to the terminal strip, connecting the

transformer wires to the terminal strip and motor leads to the terminal strip.

9. Remove the new circuit board from its protective wrap and install the circuit board.

CAUTION: Do not touch any surface of the circuit board.

Electrical static discharges can damage the board. Handle the board by the edges only.

10. Connect the cam wire harness, motor wire harness and transformer wire harness to the circuit board.

Reconnect the Soft-Minder

™

meter cable or Aqua-Sensor

cable if so equipped.

CAUTION: The wire harnesses must be connected to the circuit board properly.

11. Set the dip switches for the proper application, plug in the control and reprogram the softener. Refer to the

Culligan Silver Series

™

or Culligan Gold Series

™

installation and operation manual for dip switch settings and

programming instructions. Manually cycle the control to confirm the circuit board as been installed correctly.

IInnssttaallllaattiioonn IInnssttrruuccttiioonnss

Fig. 1

Fig. 2