Description
The Weil McLain 510-312-152 is a precision-engineered low limit control designed specifically for tankless water heaters in hydronic heating systems. Featuring an 8-degree differential, this control provides accurate and responsive temperature protection to help prevent overheating and safeguard system components.
Key Features
- Designed for use with Weil McLain tankless heater applications
- 8-degree operating differential for precise temperature control
- Includes immersion well for accurate fluid temperature sensing
- Functions as a low limit safety control to protect against undertemperature conditions
- Direct OEM replacement part for compatible Weil McLain systems
- Supports reliable and consistent hydronic system performance
Application
This low limit control is intended for installation in Weil McLain boiler and tankless heater systems where maintaining a minimum water temperature is critical. The included immersion well allows the sensor to be inserted directly into the water flow path, ensuring accurate temperature readings and dependable system protection. Its 8-degree differential minimizes short-cycling while maintaining tight temperature control.
Why Choose OEM Parts
Using genuine Weil McLain replacement components ensures compatibility, maintains system warranty integrity, and delivers the performance your heating system was engineered to achieve. The 510-312-152 is a direct factory replacement, making installation straightforward for qualified HVAC and hydronic technicians.









