Description
The Weil McLain 510-312-250 is a precision-engineered high limit temperature control designed for reliable overheat protection in hydronic boiler systems. Featuring automatic recycle operation, this control continuously monitors system water temperature and automatically resets once safe operating conditions are restored — eliminating the need for manual intervention and minimizing system downtime.
Key Features
- Auto recycle operation for automatic reset after high-limit event
- Wide temperature sensing range: 140°F to 240°F
- 30°F fixed subtractive differential for consistent, predictable switching
- Includes 1/2″ NPT immersion well for secure, accurate installation in boiler piping
- Designed for compatibility with Weil McLain boiler systems
- Provides reliable overheat protection to safeguard boiler equipment and system integrity
Product Specifications
- SKU: 510-312-250
- Brand: Weil McLain
- Control Type: High Limit Temperature Control
- Operation: Auto Recycle
- Temperature Range: 140°F – 240°F
- Differential: 30°F Fixed Subtractive
- Well Connection: 1/2″ NPT
Application
The 510-312-250 is ideal for use in residential and light commercial hydronic heating systems where dependable high-limit protection is essential. The 1/2″ NPT immersion well allows for straightforward installation directly into the boiler or supply piping, ensuring accurate water temperature sensing. The fixed 30°F subtractive differential means the control will cut out at the set point and automatically recycle once the temperature drops 30°F below that threshold, providing a stable and safe operating cycle.
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