Xylem-McDonnell & Miller FPC-1000 Electronic Low Water Cut-Off w/o Probe 144704

The Xylem-McDonnell & Miller FPC-1000 (Part No. 144704) is a professional-grade Electronic Low Water Cut-Off (ELWCO) designed without a probe, making it an ideal replacement control module or upgrade component for steam and hot water boiler systems. Engineered by the trusted McDonnell & Miller brand — a leader in hydronic and steam boiler safety controls — the FPC-1000 delivers dependable low water protection to prevent costly boiler damage and unsafe operating conditions.

Product Overview

The FPC-1000 electronic low water cut-off is the control unit sold without the sensing probe, allowing technicians to pair it with a compatible probe already installed on the boiler or to source the probe separately. This flexibility makes it an efficient solution for service calls, replacements, and new installations where only the control module is needed.

Key Features

• Electronic low water cut-off (ELWCO) control — no moving parts for enhanced reliability
• Sold without probe for flexible installation and replacement applications
• Designed for use on steam and hot water boilers
• Solid-state electronic design reduces maintenance requirements compared to mechanical float-type controls
• Provides automatic boiler shutdown when water level drops below the safe operating threshold
• Compatible with McDonnell & Miller probe-based sensing systems
• Trusted McDonnell & Miller engineering backed by Xylem’s global expertise

Application

The FPC-1000 is suited for residential and light commercial boiler installations where reliable low water protection is essential. It is commonly used as a direct replacement for aging or failed ELWCO controls, or as part of a new boiler safety control assembly.

Why Choose McDonnell & Miller

McDonnell & Miller, a brand under Xylem, has been a cornerstone of boiler safety control technology for decades. Their electronic low water cut-offs are recognized throughout the HVAC and plumbing trades for durability, ease of installation, and dependable performance in demanding hydronic and steam applications.

Specifications

• Part Number: 144704
• Model: FPC-1000
• Type: Electronic Low Water Cut-Off (ELWCO)
• Probe Included: No (without probe)
• Brand: McDonnell & Miller / Xylem
• Application: Steam and hot water boilers