Hayward HCC 4000 HCC4000 Series Manual - Page 12

To Select ORP Feed Mode: The HCC 4000 is programmed at the factory to operate in automatic feed mode as the default setting. Other ORP feed mode selections include off (disabled), and manual on for a fixed interval up to 25 minutes after which automatic feed will resume. While in normal operating mode: Press MENU. Press DOWN to find the ORP Feed Mode menu item. Press ENTER to select ORP Feed Mode. The current ORP Feed Mode will be displayed: ORP Feed Mode Automatic Feed Press UP or DOWN to find the desired selection. Press ENTER to save your selection. The controller will automatically return to normal operating mode in 10 seconds. The "Off" (disabled) mode is useful when servicing ORP feed equipment, or if sanitizer chemical supply has been depleted. The "Manual On" mode allows constant chemical feed for a fixed interval of up to 25 minutes, useful when the addition of extra chemicals is desired, as well as initial balancing of the water. PPM Calibration: The CAT controller displays a calculated free available chlorine reading. The PPM Calibration feature is used to calibrate PPM to match manual testing results. Adjust this up or down to adjust the displayed PPM value until it matches an accurate reference reading. While in normal operating mode: Press MENU. Press DOWN to find the PPM Calibration menu item. Press ENTER to select PPM Calibration. The current PPM Calibration will be displayed: PPM Calibration 1.0 Press UP or DOWN to find the desired selection. Press ENTER to save your selection. The controller will automatically return to normal operating mode in 10 seconds. Average Daily Readings: The Average Daily Readings displays the average of all readings over 24 hours. The readings are kept for up to 10 days. While in normal operating mode: 11 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS