Key Benefits: Direct OEM Compatibility: Specifically designed for York F4FP series fan coil units to ensure seamless alignment with existing drain lines

check for a proper ground connection and clear the pilot tube of any debris

this specific assembly is designed for the 47

Strict Voltage Regulation: Maintains a consistent 26

this 310371-752 assembly provides the necessary draft to close the pressure switch and initiate the heating cycle

Watts 0121504 Valve Els PW 29614 Key Benefits: Direct OEM Compatibility:The Watts 0121504, officially designated as the LF174A 125 1, is a heavy duty, lead free boiler pressure relief valve engineered for high capacity protection in hot water heating and domestic supply systems. This 1 inch NPT valve is ASME Section IV rated, featuring a 3,215,000 BTU hr steam discharge capacity at its fixed 125 psi setting. Constructed with a lead free copper silicon alloy body, it ensures compliance with modern potable water regulations