Weil-McLain 381-330-039 Control Module - Natural Gas, CGa-3 Boilers
15 Available At All US Supply Locations

Weil-McLain LWCO Control Module – Essential Low Water Cutoff Protection
The Weil-McLain LWCO Control Module is a critical safety device engineered to protect boilers from low-water operating conditions. By continuously monitoring water levels and shutting down the burner when unsafe conditions are detected, this module helps prevent costly damage and ensures safe, efficient operation of hydronic heating systems.
Professional Advantages
Built to meet demanding field conditions, the LWCO module integrates seamlessly with Weil-McLain boilers and is designed for straightforward service and long-term reliability. For contractors, it provides a dependable safeguard that reduces risk on installations and service calls.
- Automatic Shutdown: Protects boiler components by cutting operation under low-water conditions.
- Continuous Monitoring: Provides constant supervision of water levels to support safe performance.
- Heavy-Duty Design: Constructed to handle the high heat and pressure environments of commercial and residential boilers.
- Certified Safety: UL listed to meet industry safety standards.
Technical Specifications
- Application: Low-water cutoff for hydronic boilers
- Voltage: 120V AC
- Control Type: Electronic safety control
- Compatibility: Suitable for Weil-McLain boiler systems
- Certification: UL listed
Installation Notes
Installation of the LWCO Control Module should be performed by licensed HVAC or plumbing professionals. Correct wiring, integration with boiler controls, and compliance with local mechanical codes are essential to ensure both performance and safety. Attempting a non-professional installation may compromise the protection the module is designed to provide.
For Contractors
This control module reduces liability by ensuring safe operation of boiler systems. Its robust build and proven reliability make it a trusted component for both new installations and replacement projects.
For Facility Managers
Routine inspection and testing of the LWCO module should be incorporated into preventive maintenance schedules. Ensuring proper function provides protection against low-water damage and extends the service life of the boiler system.
Summary
The Weil-McLain LWCO Control Module delivers dependable low-water cutoff protection with durable construction and automatic safety response. Designed for integration with Weil-McLain boilers, it is an essential safeguard for maintaining system integrity and safe operation.
Specifications
| Weight | 1.200000 |
|---|---|
| Length (inches) | 10 |
| Width (inches) | 9 |
| Height (inches) | 4 |
| Item Type | Boiler Parts |
| Brand | Weil McLain |
| Manufacturer | Weil McLain |
| MPN | 381-330-039 |
| Sub Type | Control Module - Natural Gas |
| Item Returns | This item can be returned |
