McDonnell & Miller has launched the new Series 1575 Low Water Cut-Off / Pump Controller. The Series 1575 provides continuous protection against a low water condition and satisfies pump control needs for commercial steam and hot water boilers.

The Series 1575 is used as a low water cut-off, feed water control and alarm for boilers, vessels and tanks and includes a 1Hp pump relay, as well as adjustable burner and pump settings.

Other features to enhance its simplicity, ease of installation and versatility include:

  • Diagnostic features incorporated in the control:
    • High ambient temperature protection
    • Internal LEDs that indicate water position and condition
    • External LEDs that indicate control activity
  • Set points and differentials remain constant throughout pressure range
  • Probe operation diagnostics
    • Sensitivity monitor – Sequence monitor – Wetted probe monitor
  • Adjustable 60-second burner-off time delays
  • Adjustable pump differentials by cutting probe to desired set points
  • Redundant low-water and pump-off circuitry
  • 1 Hp burner and pump relay
  • Control unit can be mounted in any convenient location
  • Test button standard
  • Probe chamber with 3 probes and gauge glass tappings
  • 4th probe can be added for high water control

Some of the key benefits of the Series 1575 Combination Low Water Cut-Off/Pump Controllers for Steam Boilers are:

  • Prevents rapid burner and pump cycling
  • Constant operation throughout pressure range
  • Electrical starters not required for motors up to 1 Hp
  • Easy monitoring of operation
  • Easy troubleshooting