Features and Benefits ot the McDonnell & Miller Series 47/247

• For steam and hot water boilers with cold water feed
• Continuous maintenance of minimum safe water level,
• independent of electrical service
• Proportional feed action
• Quick-change replaceable cartridge valve and strainer
• Quiet, durable operation
• Isolated feed valve minimizes lime and scale build-up
• Optional features
      – No. 2 switch
      – Manual reset
• Model 247 can be field upgraded with a No. 2 switch to
  add low water cut-off function
• Maximum water supply pressure 150 psi (10.5 kg/cm2)
• Maximum inlet water temperature 120°F (49°C)
• Maximum vessel pressure 30 psi (2.1 kg/cm2)

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