Series PS-850 – Low Water Cut-Offs

McDonnell & Miller : Low Water Cut-Offs :

As of August 24, 2012 the Series PS-850 controls will no longer be available. For replacement, we recommend purchasing Series 751P/752P or Series RB controls. The following links will direct you to a product X-Ref chart and product information pages for the Series 751P/752P and Series RB controls.

Product X-Ref chart

Series 751P/752P

Series RB-24E

Series RB-122E

Contact your local Representative if you have any questions.

Features and Benefits

  • For residential, commercial and industrial applications
  • Electronic operation
  • New Features:
  • User-friendly diagnostics
  • – Red low water and shorted probe LED
  • – Green power and test LED
  • Higher probe sensitivity: 7,000 ohms
  • No lock out with loss of power if probe is in water
  • 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, remote and short probe models
  • – 120 volt and 24 volt models (24 volt models meet
  • ANSI specification Z21.13a)
  • Power consumption 1.7 VA
  • Provisions to add alarm
  • Maximum ambient temperature 120°F (49°C)
  • Maximum water pressure 160 psi (11.2 kg/cm2)

Catalog Pages

    To build and operate an efficient water system, you need both the right products and experts who know the application. Here, you can access our trusted network of partners who have the experience you need to get the job done right.

    To find Representative in Canada select your Province:

    Find your local dealer
    Postal Code
    Distance
    Province

    Find International Representatives