Culligan Model 900 - Manual (Page 13)

Culligan Hi-Flo ® 52 Softener Engineer’s Specification Page 5
¨ (Meter Initiated, Alternating Twin Unit)
An operator selected program of immediate volume initiated regeneration for alternating 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, 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 stand-by or regeneration. No external alternating
devices will be acceptable. The alternating function must be contained in the sequencing controller and each
controller must communicate via a single pre-wired cable assembly, simultaneous regenerations shall not be
possible.
¨ (Aqua-Sensor® Initiated, Parallel Twin Unit)
An operator selected program of immediate or delayed hardness initiated regeneration for parallel twin
configurations 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 programmed in the field without additional interface devices. The controller
shall indicate various functions that include time of day, time of delayed 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.
¨ (Aqua-Sensor® Initiated, Alternating Twin Unit
An operator selected program of immediate hardness initiated regeneration for alternating twin configurations
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 programmed in the field without additional interface devices. The controller shall indicate
various functions that include time of day, number of regenerations in the last fourteen (14) days, the days since
the last regeneration and indication if the softener is in stand-by or regeneration. No external alternating devices
will be acceptable. The alternating function must be contained in the sequencing controller and each controller
must communicate via a single pre-wired cable assembly, simultaneous regenerations shall not be possible.
4.4.2 In addition the following functions shall be provided as part of the system controller:
Memory back-up protection: The controller shall have memory back-up protection via at least two methods,
each capable of retaining the selected operating program and its default settings indefinitely.
Regeneration sequence timers: The controller shall allow control of up to three individual regeneration cycles,
each programmable from 0 - 99 minutes.
Lockout function: The controller shall include a lockout to prevent unauthorized personnel from altering program
data.
Regeneration override: The controller shall include a function to direct pre-programmed regeneration after 3
days without input signal (European requirement).
¨ (Included with metered unit and flow sensor selection – following two options)
Flow rate indication: The controller shall include a flow rate indicator. The flow rate shall be displayed through
the controller display.
Totalizer: The controller shall include a totalizer function. The totalizer value shall be displayed through the
controller display.
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