Latchbolt operated by key outside or
b y k n o b / l e v e r i n s i d e . O u t s i d e
knob/lever always fixed. Deadbolt
t h r o w n o r r e t r a c t e d b y i n s i d e
thumbturn. When deabolt is thrown
turning inside knob/lever retracts both
deadbolt and latchbolt. Auxiliary latch
deadlocks latchbolt when door is
closed. Inside lever is always free for
immediate egress.