Jandy TruDose Installation And Operation Manual page 18

Page 18
ENGLISH
c. Overfeed Timer
The ORP overfeed timer is a safety function turning off
the dosing if the ORP setpoint is not reached under a
certain amount of time.
• Avoid overdosing of chemicals in case of wrong /
inconsistent ORP measurement for a long period
of time.
• Detect saltwater chlorinator issues.
• Default: The ORP overfeed timer will turn on after
36 hours of chlorination without reaching the ORP
setpoint.
• The ORP overfeed timer can be modified using the
"Dose time" pushbutton in ORP mode.
Default: 36 hours
Selectable range: 12 hours to 96 hours of
chlorination (12 hours increment).
Increase the Overfeed timer if the unit is not able to
maintain the defined ORP setpoint and triggers the
ORP overfeeding alert regularly.
• Display: The ORP LED is blinking in the auto mode
and "Er2" is displayed on the LCD screen.
• The overfeed timer does not automatically reset. It
must be reset by turning the controller off and then
on or cycling the mode out of auto and back to auto.
d. High Alert - 910 mV
1. Display: ORP alert LED on
e. Low Alert - 390 mV
1. Display: ORP alert LED on
4.4.4 Flow
The integrated flow switch is pre-wired to the controller.
The flow switch must be installed for safety reasons to
prevent dosing chemicals when there is no flow in the
circulation piping.
NOTE: Install the small in-line filter on the intake
tubing going to the flow cell. Not installing it
could potentially lead to malfunction of the flow
switch.
4.4.5 Factory Defaults
To return the controller to the factory settings, place the
controller in standby mode. Turn off the controller by
holding down the mode pushbutton while in standby
mode. Press and hold both the set level and pH Cal
pushbuttons and then press the mode pushbutton. Both
the pH and ORP displays will show "Ld". The controller
will be returned to the factory default settings and be
placed in the test mode.
Jandy TruDose Chemical Controller
® TM
Return the controller to full operation by turning off the
controller with the mode pushbutton. Turn the controller
on again by pressing the mode pushbutton.
NOTE:
Failure to complete this action will leave the
controller in test mode.
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Installation & Operation Manual