Culligan Model 900 - Manual (Page 12)

Culligan Hi-Flo ® 52 Softener Engineer’s Specification Page 4
4.4 CONTROLS
A fully integrated programmable micro-processor driven electronic controller shall be provided to automatically
cycle the main operating valve through the regeneration sequence.
The electronic controller shall be designed and manufactured by the same manufacturer as the water treatment
equipment.
The controller shall sequence all steps of an automatic regeneration and automatically return the softener to a
service or stand-by mode. The initiating time and/or volume setpoints shall automatically reset upon initiation of
the regeneration sequence.
The controller shall allow for a manual initiation of the automatic regeneration sequence by utilizing a
regeneration button on the face of the controller.
The controller shall be housed in an enclosure constructed to NEMA 3 enclosure standards. The controller shall
include a keypad, capable of programming all controller functions, located inside the enclosure. Also included
with the keypad shall be a fluorescent alpha-numeric display capable of showing all information necessary for
programming the controller and operating the softener.
4.4.1 System control options
¨ (Time Clock, Single Unit)
An operator selected program of a time-initiated regeneration for single units shall be available. The controller
shall be capable of being entirely programmed in the field without additional interface devices. The operator
shall be able to select regeneration to occur after a specified number of days. The electronic controller shall
indicate various functions that include time of day, time of regeneration, number of regenerations in the last
fourteen (14) days, number of days since the last regeneration and unit in regeneration.
¨ (Meter Initiated, Single Unit)
An operator selected program of immediate or delayed volume initiated regeneration for single units shall be
available. The controller shall be capable of being entirely programmed in the field without additional interface
devices. The electronic controller shall indicate various functions that include time of day, time of delayed
regeneration, instantaneous flow rate, volume remaining before next regeneration, number of regenerations in
the last fourteen (14) days, number of days since the last regeneration and unit in regeneration.
¨ (Aqua-Sensor® Initiated, Single Unit)
An operator selected program of immediate or delayed hardness initiated regeneration for single units shall be
available. An Aqua-Sensor® control probe will be inserted into the resin bed and will sense the need for
regeneration based on the differential water hardness reading and will signal the circuit board to initiate
regeneration. The system will compensate for variations in water hardness and temperature and will require no
field adjustments when operated within the normal temperature range of the softener. The controller shall be
capable of being entirely programmed in the field without additional interface devices. The electronic controller
shall indicate various functions that include time of day, time of delayed regeneration, number of regenerations
in the last fourteen (14) days, number of days since the last regeneration and unit in regeneration.
¨ (Time Clock, Parallel Twin Unit)
An operator selected program of a time initiated regeneration for parallel twin configurations shall be available.
The controller shall be capable of being programmed in the field without additional interface devices. The
electronic controller shall indicate various functions that include time of day, time of regeneration, number of
regenerations in the last fourteen (14) days, number of days since the last regeneration and unit in
regeneration. The controller must communicate via a single pre-wired cable assembly, simultaneous
regenerations shall not be possible.
¨ (Meter Initiated, Parallel Twin Unit)
An operator selected program of immediate or delayed volume initiated regeneration for parallel twin
configurations shall be available. The controller shall be capable of being programmed in the field without
additional interface devices. The controller shall indicate various functions that include time of day, time of
delayed regeneration, instantaneous flow rate display, volume remaining before next regeneration, number of
regenerations in the last fourteen (14) days, the days since the last regeneration and indication if the softener is
in regeneration. The controller must communicate via a single pre-wired cable assembly, simultaneous
regenerations shall not be possible.
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