ensuring consistent flame detection and preventing nuisance lockout codes during high-demand heating cycles

including the S4 and NS201 product lines

How do I ensure the accuracy of the 0-200 degree reading

it is best practice to use the York OEM contactor specified for the wiring schematic to ensure proper terminal spacing and clearance within the control box

0 µA—it "proves" the flame and allows the gas valve to remain open

Watts 0009465 Valve Els PW 17895 ensuring consistent flame detection andFor high capacity commercial or residential applications requiring precise pressure control, the Watts 0009465 (Series LF25AUB Z3) is the industry standard 2 inch lead free water pressure reducing valve. This unit is the direct updated version for legacy models including 0070330, 0070336, 25AUB 2, and LF25AUB Z3 2. Engineered with a lead free copper silicon alloy body, it provides superior durability and compliance with stringent potable water