compressed gaskets leads to nuisance lockouts or dangerous flue gas bypass

a clogged or cracked suction tube prevents the inducer's negative pressure from reaching the switch diaphragm

carbon dioxide

Common Questions Can I bypass this switch for testing purposes

Armstrong Furnace RS35866B001 Cap Tube Assembly compressed gaskets leads to nuisanceThe Armstrong Furnace RS35866B001 Cap Tube Assembly is a precise refrigerant metering device engineered for specific Armstrong Air and Allied Air residential cooling systems. This high pressure capillary tube assembly ensures stable superheat values by regulating liquid refrigerant flow into the evaporator coil. Constructed with heavy duty copper, the RS35866B001 is designed to withstand high cycle stress and pressure fluctuations without fracturing.