Hayward CAT 3500 CAT 3500 Owners Manual - Page 15

The current pH Overfeed Timeout Setting will be displayed: pH Overfeed Timeout Off Press UP or DOWN to scroll to the desired setting. Press ENTER to save your selection. Press MENU to return to the Operating Menu NOTE: Overfeed Timers prevent potentially dangerous, unintentional dispensing of chemicals. CAT Controllers recommends always having the "Overfeed Timeout" functions enabled as a precautionary measure. By disabling the "Overfeed Timeout" the overfeeding of chemicals could occur and create unsafe water chemistry conditions. Overfeeding chemicals is dangerous and could potentially harm patrons. ORP Feed: The CAT 3500 by default uses a time-based proportional feed algorithm which enables the precise control of virtually any body of water. With some types of chemical feeders, however, it is beneficial to disable proportional feed and dispense chemicals on a fixed basis. From the Configuration Setup Menu: Press DOWN to find the ORP Feed menu item. Press ENTER to select ORP Feed. The current ORP Feed setting will be displayed: ORP Feed Proportional Press UP or DOWN to select Proportional or Fixed feed. Press ENTER to save your selection. ORP Mixing Time On: This feature prevents the controller from receiving inaccurate readings due to chemicals passing directly through the flow cell and over the sensors before being injected into the return line. Typically this would occur when the sanitizer is fed on the "suction side" of the primary circulation/filter pump. To program the amount of time you would like the controller to feed during its cycle please follow the steps below. From the Configuration Set Up Menu: Press DOWN to find the ORP Mixing Time On item. Press ENTER to select ORP Mixing Time On. The current ORP Mixing Time On setting will be displayed: Mixing Time On Time 30 seconds Press UP or Down to scroll to desired setting. Press ENTER to save your selection. 14 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS