Culligan High Efficiency 1.5 Twin Series Installation, Operation And Service Instructions page 25

NOTE The wire connectors must be connected to the circuit board properly. The wires must exit the plug-in
connector opposite of the raised white base of the circuit board connector. Failure to properly connect
any of the connectors will result in a malfunction of the circuit board operation.
13. Connect the other end of the power cord, with the spade terminals, to the two 2.5VAC terminals on the trans-
former. See Figure 26.
14. Insert the Aqua-Sensor sensor probe wire harness through the Auqa-Sensor connector opening at location #3
on the controller enclosure. See
15. Tighten the nut on the interior side of the port opening on the controller enclosure. See
16. Connect the Aqua-Sensor probe wire harness bushing to the circuit board. The Aqua-Sensor probe terminal is
labeled "Aqua-Sensor." See Figure 26.
NOTE The 230 VAC transformer does not have 2.5 VAC connections. The Aqua-Sensor probe cannot be used.
Power to circuit board
2.5VAC required only for
Aqua-Sensor installations
Cat. No. 01024821
Figure 21.
MOTOR CONNECTOR
POSITION SENSOR CONNECTOR
FLOW METER CONNECTOR
Power to circuit
board 24V
Figure 26. Transformer-circuit board power connection.
PHONE
2.5v
24v
Aqua-Sensor power
cable should be
plugged to 2.5VAC
connectors—left side
Connector Plugs
Power cable should be
plugged to 24V
connectors—right side
AQUA-SENSOR PROBE
Figure 23.
Installation 21