Durable Sensing Element: The 1/2-inch diameter

For optimal buoyancy in high-capacity tanks

all of which force flames toward the switch

Safe Ignition Protocol: Ensures that the venter motor creates adequate draft

Verified Signal Accuracy: Prevents nuisance lockouts by providing a stable flame detection signal to the control board

Emerson Alco 055931 Expansion Valve 318518-761 Durable Sensing Element: The 1/2-inchThe Emerson Alco 055931, model HFES 2. 5 HC, is a high performance externally equalized thermal expansion valve designed for precision refrigerant flow control in medium temperature applications. Engineered for both R22 and R407C systems, this valve features a 2. 5 ton nominal capacity and a straight body configuration with 3 8" x 1 2" ODF sweat connections. The heavy duty stainless steel power element resists corrosion and prevents capillary tube