The cut-in temperature is set using the external knob

Rugged Housing: Designed to withstand the thermal cycles and moisture common in high-efficiency condensing boilers

This OEM interface board is designed to manage the ignition sequence and blower timing

When your existing boiler water level control housing shows signs of thermal fatigue

ensuring that fluid is moving through the heat exchanger before the system allows the cooling stages to engage

ASCO K3A542V Valve R-134A The cut-in temperature is setThe ASCO K3A542V is a high performance 1 2 inch NPT gas solenoid valve designed for rigorous industrial and commercial burner applications. This 2 way normally closed (N C) safety shut off valve operates on 120V AC and is engineered to manage fuel gas flow with a maximum operating pressure of 6 PSI. Featuring a robust die cast aluminum body and a high flow capacity of 350,000 BTU hr (6 Cv), the ASCO RedHat K3A542V provides a dependable solution for