DC4500 Cooling Tower Controller

The DC4500 is a bleed and feed cooling tower controller with dual biocide timers. Standard features include; four feed modes (Feed & Bleed, % of Time, % of Bleed, Flowmeter Pulse), intermittent or continuous sampling, uS or PPM display, flow totalizer, manual test modes, temperature display, biocide cycle of 7, 14, or 28 days, biocide lockout, and conductivity or time-based biocide pre-bleed. Programming is simple and is accomplished with only three keys. The backlit liquid crystal display and LEDs provide a visual indication of operating conditions and equipment status.

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DC4000 Cooling Tower/Boiler Controller

The DC4000 may be programmed as a bleed and feed cooling tower controller or boiler controller. Standard features include; four feed modes (Feed & Bleed, % of Time, % of Bleed, Flowmeter Pulse), intermittent or continuous sampling, uS or PPM display, flow totalizer, and manual test modes. The boiler mode includes a time-trap sampling method that prevents the flashing problems that are so common in boilers. Programming is simple and is accomplished with only three keys. The backlit liquid crystal display and LEDs provide a visual indication of operating conditions and equipment status.

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AC4000/5000 Cooling Tower Controller

These new analog cooling tower controllers bring state-of-the-art technology to the entry-level controller market. The AC4000 is a simple, low cost feed and bleed controller. The AC5000 features three selectable feed options (Limit, % of Time, Flowmeter Pulse). Both controllers feature rugged, iron vane meters and a clear, lockable cover.

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