Enhanced Safety: Prevents furnace operation during venting obstructions

If the Trane 45/7

High Flow Capacity: Handles up to 710

this L165-40 limit control prevents heat exchanger damage and hazardous operating conditions by monitoring for airflow restrictions or blower motor failure

This fixed-bore ac restrictor orifice is critical for maintaining the correct refrigerant flow rate

Watts 0556035 Valve Els PW 17895 Enhanced Safety: Prevents furnace operationThe Watts 0556035 is the direct Lead Free replacement for the legacy 530C 1 2 (EDP 0371271). This 1 2 inch calibrated pressure relief valve is engineered for protection against excessive pressure in water supply systems, specifically for boiler feed lines and space heating applications. It features a broad adjustable pressure range of 50 to 175 psi (3. 4 to 12. 1 bar), allowing technicians to field set the relief point to job site specifications using