while the included conduit clamp ensures secure electrical terminations for 120/240 Vac contact ratings

the flame sensor is likely failing to send a sufficient microamp signal to the control board due to soot or oxidation

the SPDT contacts are rated to switch power circuits up to 240V

The Johnson Controls VG2831UN is a heavy-duty 3-way mixing globe valve engineered for precision control in large-scale chilled or hot water hydronic systems

2-square-inch backlit LCD display provides electronic accuracy within +/- 1 degree

Watts 0121415 Valve 324846-701 while the included conduit clampThe Watts 0121415 (Model 40XL Z2 150) is a heavy duty, automatic reseating temperature and pressure relief valve engineered for critical protection in commercial water heating systems. Designed for hot water supply tanks and large scale water heaters, this 3 4" NPT valve features a high grade bronze body and a 5 inch thermostat extension. It is factory set to trip at 150 PSI and 210F, ensuring system integrity by discharging overheated water or excess