it opens the electrical circuit to the gas valve if internal plenum temperatures exceed 150°F and automatically re-closes once the temperature drops by 40°F

resisting heat blistering even under high ambient temperatures

This often indicates the sensor is fouled or unable to send the necessary flame rectification signal back to the control board

Common Questions Is the A22181-1 compatible with stainless steel inverted bucket traps

This HVAC sequencer relay is engineered for precision

Emerson Alco 065861 Angle Body Flow it opens the electrical circuitThe Emerson Alco 065861 (C501 7) is a precision engineered angle body flow expansion valve flange designed for high performance refrigeration system components. Built for compatibility with TCL and TCLE series valves, this component features a 1 2" ODF sweat inlet and a 5 8" ODF sweat outlet, ensuring secure, leak proof brazed connections in demanding HVACR environments. Its right angle configuration is specifically designed to optimize piping layouts