Johnson Controls W42AA-1 Humidistat 322838-754 it provides a reliable normally

it provides a reliable normally open circuit that closes only when the specific 0

more controlled ignition by gradually increasing the gas flow

Check the identification tag on the existing valve or the stamping on the cage

this board protects expensive downstream components like the compressor from premature failure due to improper staging or rapid power fluctuations

this valve requires minimal pressure differential for full opening

Johnson Controls W42AA-1 Humidistat 322838-754 it provides a reliable normallyThe Johnson Controls W42AA 1 Humidistat is a heavy duty, 3 wire humidity controller designed for precision management of both humidifying and dehumidifying equipment. Engineered with a stable 150 strand human hair sensing element, this unit provides superior sensitivity and long term accuracy compared to synthetic alternatives. It operates on line voltage (120 240 VAC) or low voltage circuits, utilizing a Single Pole Double Throw (SPDT) snap acting