10 • Schlage • ND-Series service manual
Lock assembly drawing index
Function
ANSI/BHMA A156.2, 2011, Series 4000, Grade 1
Trim
Chassis
Schlage
ANSI
Description
Outside function
Inside function
Page
Page
ND80EU
Storeroom
lock—electrically
unlocked
(Fail secure)
Lever is continuously
locked until unlocked by
key outside or by electric
current. When locked,
key retracts latch.
Auxiliary latch deadlocks
latchbolt when door is
closed.
Inside lever is always
unlocked and is always free
for immediate egress.
With available request-to-exit
(RX) feature.
79
80
37
38
ND82
F87
Institution lock
Lever is fixed. Entrance
by key only.
Lever is fixed. Exit by key only.
81
39
ND85
Faculty restroom
lock
Lever is fixed. Entrance
by key only.
Push-button activates
occupancy indicator, allowing
only emergency master key to
operate. Turning lever or
closing door releases
occupancy indicator. Rotation
of spanner-button by spanner
key provides lock-out feature
by keeping indicator thrown.
Inside lever is always free for
immediate egress.
82
40
ND91
F82
Entrance/office
lock with
Vandlgard
Lever is unlocked with
key when push-button is
pushed. Vandlgard
allows outside spindle to
disengage from latch
when locked.
Push-button disengages
outside lever. Turning inside
lever or outside key releases
push-button.
Inside lever is always free for
immediate egress.
83
41
ND92
F109
Entrance lock with
Vandlgard
When turn/push-button
is pushed and turned,
key retracts latch. When
push-button is pushed,
lever is unlocked with
key. Vandlgard allows
outside spindle to
disengage from latch
when locked.
Turn/push-button: Pushing
and turning button
disengages outside lever
until manually unlocked.
Push-button: Pushing button
disengages outside lever until
unlocked by turning inside
lever or by key outside.
Inside always free for
immediate egress.
84
41
ND93
F88
Vestibule lock with
Vandlgard
Latch retracted by key
when locked by inside
key. Key locks and
unlocks lever. Vandlgard
allows outside spindle to
disengage from latch
when locked.
Outside lever is disengaged
by key inside.
Inside lever is always
unlocked and is always free
for immediate egress.
85
42
ND94
F84
Classroom lock
with Vandlgard
Outside lever
disengaged or unlocked
by key. Vandlgard allows
outside spindle to
disengage from latch
when locked.
Inside lever is always
unlocked and is always free
for immediate egress.
86
43
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.
