McDonnell & Miller 250-3/4-15 Valve Els PW 17895 Verify the vent pressure before
Platform notes & fabric story
Description
McDonnell & Miller 250 3 4 15 Valve Els PW 17895 Verify the vent pressure before Verify the vent pressure before assuming the switch is defective engineered to interrupt the burner circuit if internal plenum temperatures exceed the 160 degree Fahrenheit threshold