Velocity Boiler Works (Crown) 960124 Limit Switch R-410A Never use a lower voltage

Never use a lower voltage rating than the original spec

it typically requires a common wire connection or battery power depending on the specific Reznor heater control board configuration

Driven by a 120V 60Hz Class F coil

This HVAC high limit switch is a direct OEM replacement for select Armstrong

Velocity Boiler Works (Crown) 960124 Limit Switch R-410A Never use a lower voltageThe Velocity Boiler Works (Crown) 960124 Limit Switch is a critical safety component designed for high performance temperature regulation in residential and industrial hydronic systems. As a veteran grade HVAC high limit switch, this part is engineered to monitor heat levels continuously, providing a necessary thermal safeguard by interrupting the 24V control circuit if internal temperatures exceed safe operating parameters. This prevents catastrophic