Description
McDonnell & Miller 144704 FPC-1000 Boilerwize Electronic Low Water Cut-Off (LWCO)
Field-Configurable Probe Type LWCO for Steam and Hot Water Boilers – 24V/120V, Auto/Manual Reset
Product Overview
The boilerwize FPC-1000 (replaces 750-MT-120) is an advanced, field-configurable electronic low water cut-off designed to protect residential, commercial, and industrial steam and hot water boilers. Utilizing patented technology to monitor water conductivity, it ensures precise burner shutdown only when low water conditions truly exist—maximizing safety while minimizing unnecessary shutdowns.
Key Features
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Replaces model 750-MT-120
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Field configurable for 24V or 120V operation, auto or manual reset
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Suitable for steam and hot water boilers
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Patented probe technology monitors water conductivity with smart sensitivity thresholds
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Self-cleaning probe minimizes scale build-up, extending cleaning intervals up to 5 years
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Power and condition indicator LEDs:
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Green LED for auto mode power
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Yellow LED for manual mode power
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Red LED for low water alarm
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Tri-function button for test, manual reset, and configuration
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Meets ASME Standard CSD-1 requirements
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Optional Bluetooth connectivity for mobile device integration
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Leak-free brass threaded connection with wrench flats for easy installation
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No lockout on power loss if probe remains in water
Specifications
| Specification | Details |
|---|---|
| Type | Electronic Low Water Cut-Off |
| Application | Steam Boilers, Hot Water Boilers |
| Voltage | 24V / 120V |
| Reset Type | Automatic / Manual (Configurable) |
| Max Temperature | 120°F (49°C) |
| Power Consumption | 1.7 VA (24V), 3.6 VA (120V) |
| Probe Cleaning | Self-cleaning, extends cleaning intervals to 5 years |
| Connection Type | Brass threaded (metal-to-metal seal) |
| Certifications | ASME Standard CSD-1 |
| Replacement Model | Replaces 750-MT-120 |
Protect your boiler system with the reliable, smart, and easy-to-install boilerwize FPC-1000—combining advanced technology with versatile field configurability for superior low water protection.
