a vacuum leak in the housing is a likely culprit

it can be utilized in vertical runs if the counter-balanced weighted arm is field-adjusted to compensate for the weight of the damper blade

ignition failure

the 41-207 is designed to provide sufficient heat for clean ignition in both North American natural gas and liquid propane (LP) configurations

What refrigerant type is this valve designed for

Tecumseh 56533-4 Valve 319847-401 a vacuum leak in theThe Tecumseh 56533 4 is a professional grade 3 8" ODF sweat shutoff valve engineered for high pressure refrigeration and air conditioning systems. This heavy duty suction service valve is a precision machined component designed to manage refrigerant flow and facilitate system isolation during maintenance or component replacement. Featuring a robust brass body construction, the 56533 4 ensures leak proof performance and durability under standard