Low Water Cut-Off Electronic for Steam Boilers

Model #: PS-802-24; Volts: 24;

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McDonnell & Miller
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  • For residential and commercial applications
  • Red low water and shorted probe LED
  • Green power and test LED
  • Self-cleaning probe No lock out with loss of power if probe is in water
  • No blow down of contol required when mounted directly into boiler tappings
  • Test button standard on all models
  • Maximum ambient temperature 120° F
  • Maximum steam pressure 15 PSI
  • Maximum water temperature 250°
  • 24V model meets ANSI specification Z21.13a

Model #: PS-802-24; Volts: 24;


Maximum ambient temperature: 120°F |Maximum water temperature: 250°F |Maximum steam pressure: 15 PSI |Voltage across probe to ground: 14VAC |Power consumption: 1.7 VA @ 24 VAC, 3.6 VA @ 124 VAC |Probe sensitivity: 7,000 ohms

Product Specifications

Model #PS-802-24
Shipping Weight2.10
Shipping Width6.85
Shipping Length7.64
Shipping Height3.78

Compliance & Notes

Harmonize Code9026.10.5000
NoteModel PS804 with foam compensator also available at your local Johnstone Supply location by special order

Contact your local store for additional notes and/or restrictions

Warranty Information

WARRANTY - Johnstone Supply will administer and promptly process all warranties in accordance with the manufacturer's specific warranty policies and procedures.

WHOLESALE ONLY - Identification is required of purchasers. Possession of Johnstone's catalog does not constitute an offer to sell by Johnstone or the right to purchase from us.

RETURNS - All returns are subject to a restocking charge.

Brand Name:
McDonnell & Miller
See other: McDonnell & Miller - Low Water Cut-Offs
See all: McDonnell & Miller Products

Mfg. #: 153917