FOR AIR, FLUE AND EXHAUST GASES /FIELD ADJUSTABLE
AA-A2… DIFFERENTIAL PRESSURE SWITCHES ARE FIELD ADJUSTABLE, COMPACT PRESSURE SWITCHES FOR AUTOMATIC BURNER CONTROLS. AVAILABLE WITH HOSE OR NPT THREADED CONNECTIONS. NEMA 4 ENCLOSURE RATING
AA-A2-4... VERSIONS FEATURE HOSE CONNECTIONS
AA-A2-6... VERSIONS FEATURE NPT THREADED CONNECTIONS THAT ALSO INCLUDE A TEST BUTTON IN THE LOWER HOUSING.
