Series PS-800 – Low Water Cut-Offs

McDonnell & Miller : Low Water Cut-Offs :

Features and Benefits

  • For residential and commercial applications
  • Electronic operation
  • New Features:
  • User-friendly diagnostics
  • – Red low water and shorted probe LED
  • – Green power and test LED
  • Probe sensitivity: 7,000 ohms
  • No lock out with loss of power if probe is in water
  • Delay on Make (DOM) feature (15 seconds)
  • Delay on Break (DOB) feature (10 seconds)
  • No blow down of control required when mounted directly
  • into boiler tappings
  • Test button standard on all models
  • Options available include
  • – Manual reset
  • – Extended barrel and remote sensor models
  • – 120 volt and 24 volt models (24 volt models meet
  • ANSI specification Z21.13a)
  • Power consumption 1.7 VA
  • Provisions to add alarm or automatic water feeder
  • Maximum ambient temperature 120°F (49°C)
  • Maximum steam pressure 15 psi (1 kg/cm2)
  • Maximum water temperature 250°F (121°C)

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