Foxcroft FX-8 Auto-Pacing System FX-8E-A-C-T-X-X-X-C-XX-110 with NH3 Rate Valve

The Foxcroft FX-8 Auto-Pacing System is a specialized control unit designed for precise chemical dosing in water and wastewater treatment applications, particularly for ammoniation processes. This model, FX-8E-A-C-T-X-X-X-C-XX-110, integrates an automatic NH3 ratio valve to regulate ammonia feed rates based on flow pacing or residual signals, ensuring optimal chloramination for disinfection. Key features include auto/manual control modes, a digital display for dosage settings, and feed-forward control to maintain consistent chemical ratios. It offers advantages over manual systems by reducing operator intervention, improving accuracy, and minimizing chemical waste, which can lead to cost savings and better compliance with water quality standards. Drawbacks may include the need for periodic calibration and compatibility limited to specific gas feeders like chlorinators or ejectors. Ideal for municipal water plants, it supports ranges up to 45 PPD NH3 and operates on 110 VAC power. Based on image analysis, the unit appears used but in good condition with intact wiring and no visible damage; serial number 8890209801. Estimated dimensions and weight are approximations from visual inspection, as exact datasheets were not found in searches. For resources, refer to Foxcroft's official site (e.g., foxcroft.com) for similar FX series manuals; a general chlorinator control brochure is available at https://www.foxcroft.com/resources (summarized: covers installation, operation, and troubleshooting for auto-pacing systems). Market price estimated from comparable used water treatment controllers on sites like eBay and industrial surplus listings.