Velocity Boiler Works (Crown) 3503025 Relay R-410A the D24-210 is specifically a

the D24-210 is specifically a floating control actuator

this self-closing safety valve is ASME rated and CSA listed to ensure high-performance relief under critical conditions

conversely

featuring standard 1/4 inch quick-connect terminals for rapid installation during service calls

This OEM boiler control board is a comprehensive field-integration solution

Velocity Boiler Works (Crown) 3503025 Relay R-410A the D24-210 is specifically aThe Velocity Boiler Works (Crown) 3503025 Relay is a high duty 120V combination relay engineered for precise circuit management in residential and commercial hydronic systems. As a critical boiler replacement part, this component integrates multiple switching functions into a single housing, streamlining the 120VAC electrical path for burners, pumps, and limit controls. Designed specifically for Crown boiler systems, it ensures 60Hz current stability