Copeland 510-0349-03 Valve 321702-401 This replacement vent limit switch

This replacement vent limit switch is engineered to monitor exhaust temperatures and will break the circuit to the gas valve if the vent temperature exceeds its fixed setpoint (typically calibrated around 200°F to 220°F)

it mitigates ignition noise and reduces mechanical stress by gradually ramping up gas flow to the burner manifold

ensuring a secure electrical interface between the high-limit switch and the thermocouple circuit

which effectively minimizes vibration and bearing wear across the assembly

Copeland 510-0349-03 Valve 321702-401 This replacement vent limit switchThe Copeland 510 0349 03 is a high performance expansion solenoid valve assembly engineered for precise refrigerant metering in commercial HVAC and refrigeration systems. Designed to integrate seamlessly with Copeland compressor configurations, this assembly ensures optimal refrigerant flow control by acting as a critical interface between the high pressure liquid line and the evaporator. The rugged brass body construction and stainless steel