AQmatic NX48 Manuale di servizio - Pagina 6

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TIMER OPERATION

Set Time of Day

Hold the Up or Down button to change time. While in time

change mode press Shift to adjust next digit over. On multiple

tank systems change time on #1 control only. All other controls

in system will mirror the time on control #1.

Manually Initiating a Regeneration

1. When timer is In Service or Stand By, press the Extra Cycle

button on the main screen for five (5) seconds to force a

manual regeneration if another unit is not in Regeneration.

2. The timer reaches Regeneration cycle Step #1.

3. Press the Extra Cycle button once to advance valve to the

next Regeneration cycle.

Timer Operation During Regeneration

In the Regeneration cycle step display, the timer shows

the current Regeneration cycle number the valve is in, or

has reached, and the time remaining in that step. Once all

regeneration steps are complete the timer returns to In Service

and resumes normal operation.

Example: 12 minutes remaining in Cycle 1

Press the Extra Cycle button during a

Regeneration Cycle to immediately advance the

valve to the next cycle and resume normal timing.

Flow Meter Equipped Timer

During normal operation the Time of Day screen alternates with

the Error screen (if errors are present).

As treated water is used, the Volume Remaining display counts

down from the calculated system capacity to zero. When zero

is reached a Regeneration cycle begins if no other units are in

regeneration.

Timer Operation During Programming

The timer enters the Program Mode in Standby or Service

Mode as long as it is not in regeneration. While in the Program

Mode the timer continues to operate normally monitoring water

usage. Timer programming is stored in memory permanently.

Timer Operation During A Power Failure

During a power failure all timer displays and programming are

stored for use upon power re-application. The timer retains

all values, without loss. The timer is fully inoperative and any

calls for regeneration are delayed. The timer, upon power

re-application, resumes normal operation from the point that it

was interrupted.

NOTE: A flashing Time of Day display indicates a power

outage. Hold the Up or Down button to reset time.

NXT Stager Controller AU11

Remote Lockout

The timer does not allow the unit/system to go into

Regeneration until the regeneration lockout input signal to the

unit is cleared. This requires a contact closure to activate the

lockout. The recommended gauge wire is 20 with a maximum

length of 500 feet.

Regeneration Day Override Feature

If the Day Override option is turned on and the actual number

of days since last regeneration exceeds the set regeneration

day override value, the Regeneration cycle starts. If other units

are in regeneration, it is added to a regeneration queue. This

occurs regardless of the remaining volume available.

This unit is not designed to drive/power

WAR NING:

external devices. Transformer must be

grounded. Ground wire must be terminated

to the back plate where grounding label is

located.

Auxiliary Relay Output

The Auxiliary Relay Output on the circuit board can be

programmed to be closed during a window of time within the

regeneration sequence. The Aux Relay Output Start time sets

the turn-on time referenced to the start of regeneration. The

Aux Relay Output End time sets the turn-off time referenced to

the start of regeneration. The Auxiliary Relay Output shares the

same relay as the Chemical Pump Output. See wiring diagram

for connection information.

Chemical Pump Output

When the Chemical Pump Output feature is enabled, the

control will calculate volume of water used and close the

relay when the set CPO Aux Relay Volume is reached. Once

activated, the relay will stay closed for the amount of time set

in CPO Aux Relay Time. The Chemical Pump Output only

functions while in service, and the CPO volume is reset to zero

each regeneration. The Chemical Pump Output shares the

same relay as the Auxiliary Relay Output. See wiring diagram

for connection information.