MBS Mortise Lock, Service Manual

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pg13
Functions
Functions
Dead bolt operated by key outside and
turn piece inside.
ANSI F17 - Deadlock (MBS A78816)
Dead bolt by key from outside only.
ANSI F18 - Deadlock (MBS A78816)
Latch bolt operated by lever from either
side, except when outside lever is locked
by inside turn. Operating inside lever,
closing door or operating outside
emergency release unlocks outside lever.
ANSI F22 - Privacy (MBS A78822)
Latch bolt operated by lever either side.
Dead bolt operated by key outside or
by turn from inside.
ANSI F21 - Dormitory with Dead bolt
(MBS A78821)
Latch bolt operated by lever from either
side, except when outside lever is made
inoperative by push button rocker. Dead
bolt projected by key from outside and
by thumb turn from inside. Key outside
operates both bolts. Operating inside
lever retracts both bolts and outside
remains locked. Latch bolt is deadlocked
whenoutside lever is made inoperative or
when the dead bolt is projected. When
dead bolt is retracted, lever is unlocked by
stop or mechanical means other than key.
ANSI F20 - Entrance/Apartment/Dormitory
(MBS A78820)
Latch bolt operated by lever from either
side. Dead bolt operated by turn from
inside and emergency release from outside.
Operating inside lever retracts both bolts.
ANSI F19 - Privacy or Bathroom (MBS A78819)