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CircuPool Universal UL25 - LCD DISPLAY AND DUTY CYCLE; LCD Display; Chlorine Generation Duty Cycle

CircuPool Universal UL25
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11
allowing titanium plates to be completely covered by water, this will also cause the system to experience a high
amount of wear. If illuminated after thorough cleanings, verifying system parameters and complete water
coverage in cell, Cell replacement may be necessary. This light takes priority over any salinity readings or
indicator lights, as salinity readings may temporarily be artificially low during such conditions.
Check Salt: When this LED is flashing, the salt level is near to its minimum threshold, which is causing the Cell
to operate at low efficiency. When this LED is illuminated steadily, the salt level is too low and Cell has shut
down. The salt level must be raised before operation is restored. See also "Cell Maint." above. See page 7 for
information about adding salt.
High Salt: When this LED is flashing, the salt level is higher than necessary. When this LED is illuminated
steadily, the salt level is too high and the Cell has shut down. The pool water must be diluted with fresh
water before operation is restored. See also "Cell Maint." above.
LCD DISPLAY:
During normal operation, the screen shows the average salt concentration of the pool water, in ppm (parts per
million). This average reading is constantly being updated by real-time salinity readings.
TIP: When first installed, this reading may display the last salinity readings taken at the factory. This average
will begin to update with your pool's operation over the first 24 hours.
TIP: As mineral scaling builds up in the Cell after regular use, the system may temporarily display an
artificially low salinity level. After fully cleaning your Cell, it will begin to detect salinity normally again.
Press the SYSTEM STATUS button sequentially to cycle through the following other information on the LCD Display:
1. Pool Temperature (xx degrees Fahrenheit or Celsius)
2. Cell Voltage (often 21.0 to 27.0 volts when chlorine is being generated, otherwise 16-31V)
3. Cell Current (often 2.50 to 7.80 amps when chlorine is being generated, otherwise 0 amps during normal
rest cycles see “Duty Cycle” below for more information.)
4. Selected Chlorine Output percentage level ("0p" to "100p" depending on dial position or input from
remote pool automation controller)
5. Real-Time Salinity reading ( xxxx PPM or x.x grams/Liter.)
6. System ID
7. Software revision level
8. Cell Version
NOTE: You may see a negative sign in front of some diagnostic numbers during normal operation. This is
normal and indicates the system is on one of its two Reverse Polarity cycles, no action is required.
On the 9th push of the button the display will revert back to the default Average Salinity display. The default display
will also be restored any time the button is not pushed for 30 seconds. The Pool Temperature and Real-Time Salinity
displays can each have their units of measure switched. To do so, bring the desired display on screen using the
System Status button, then cycle the Super Chlor switch from Auto to On.
Chlorine Generation Duty Cycle
At times you will see the no Cell Current or Real-Time Salinity reading during normal operation this simply indicates
the system is in the resting portion of its duty cycle. No action is required on your part. This model uses an algorithm
that determines when it is actively generating chlorine. The lower the chosen chlorine output level, the less frequently
these readings will be present, and vice versa. This feature helps maximize the lifespan of your Cell.

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