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disc/diaphragm
How do I know if the air vent needs replacing
An open circuit or a reading significantly outside the 40-75 ohm range generally indicates a dead element
The Lennox 41K37 Gas Valve
York 031-02742-000 Controller R-410A disc/diaphragmThe York 031 02742 000 Drain Feed Controller is a high precision HVAC replacement part engineered for demanding liquid level management in commercial and industrial chillers. Often identified as an AK2 XM Stepper Module, this component provides the critical 0 10 VDC control signal interface required to drive electronic expansion valves (EEV). Unlike legacy controllers, the 031 02742 000 is specifically balanced for use with the ETS series stepper
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