USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
14
P.PF (pH Proportional Feed)
Selects either fixed setpoint or proportional control.
Off: The pH feed output is activated based on a simple above or below setpoint decision.
When the measured pH value is less than or equal to the pH setpoint (pH Feed: Acid selected)
or greater than or equal to the pH setpoint (pH Feed: Base selected) the pH output feed is
turned off. Otherwise, the pH feed output is turned on.
On: The pH feed output is activated based on the difference between the pH setpoint and the
measured pH value. As the difference increases, the duration the pH feed output is turned on
increases to 20, 30, 40, and 50 seconds of the 60 second cycle, and then the pH feed output
is turned on continuously. This is the default setting.
P.OF (pH Overfeed Timer)
When Off is selected, the pH feed output will remain activated as long as a pH feed condition is
indicated. When any other selection is made, an overfeed limit timer is enabled on the pH feed out-
put. After the pH feed output has been turned on for a period of time greater than this limit, the pH
channel is turned off and placed into an overfeed alarm condition which must be manually reset.
If pH Proportional Feed: On has been selected, the pH feed output must be on continuously for
the overfeed time limit, rather than in the part of the proportional feed cycle in which the pH feed
output is on for only a portion of the 60 second proportional feed cycle.
After the pH feed channel is placed into the overfeed alarm condition, the pH channel is turned off
and the pH Feed Mode indicator flashes rapidly to indicate the alarm. Press the pH Feed Mode
button to return the pH channel to the off, manual or automatic feed mode. This will reset the
pH overfeed alarm and restart the overfeed timer. The pH overfeed alarm will also be reset if the
controller is powered off and then back on.
The pH overfeed timer is disabled when the pH Feed Mode button is used to place the pH channel
in the manual feed state.
Off: The pH feed output will remain on for an unlimited amount of time.
15: 15 Minutes.
30: 30 Minutes.
60: 60 Minutes (1 Hour).
120: 120 Minutes (2 Hours).
180: 180 Minutes (3 Hours).
240: 240 Minutes (4 Hours) - default
P.AL (pH Low Alarm Limit)
Sets the low alarm point for the pH channel. When the measured pH value is less than this limit,
the audible alarm will be activated and the pH feed output will be disabled. The alarm will be
cleared and feed will resume automatically when the measured pH value returns to within the non-
alarm range.
7.0: Use the UP and DOWN buttons to select a value between 6.0 and 9.0 pH. The value
must be less than the pH alarm high value. The default value is 7.0 pH.
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