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McDonnell & Miller: Low-Water Cutoff/Pump Controller

March 29, 2010
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Series 1575 low-water cutoff/pump controller provides continuous protection against a low-water condition and satisfies pump control needs for commercial steam and hot water boilers. It is used as a low-water cutoff, feed water, control, and alarm for boilers, vessels, and tanks. The controller includes a 1-hp pump relay, as well as adjustable burner and pump settings. Set points and differentials remain constant throughout the pressure range. Diagnostic characteristics include high ambient temperature protection, internal LEDs that indicate water position and condition, and external LEDs that indicate control activity. Features include redundant low-water and pump-off circuitry, probe chamber with three probes and gauge glass tappings (fourth probe can be added for high water control), adjustable 60-second burner-off time delays, and adjustable pump differentials by cutting probe to desired set points.

McDonnell & Miller, 8200 N. Austin Ave., Morton Grove, IL 60053; 847-966-3700; 847-983-5954 (fax); www.mcdonnellmiller.com

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