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Electrified Locks Functions and Parts
FUNCTION DESCRIPTIONS
This section includes function descriptions grouped by the following
function types:
■ electrified mortise
■ electrified cylindrical.
Electrified mortise
functions
The following lists describe how the latchbolt, outside lever/knob, and
inside lever/knob operate for each electrified mortise function.
Outside key
Inside key
Latchbolt
Outside
Figure 3.1
Warning!
Understanding mortise function drawings
Locks that secure both sides of the door are controlled by
building codes and the Life Safety Code®. In an emergency exit
situation, failure to quickly unlock the door could be hazardous
or even fatal.
EWEL–Electrically Locked–Fail Safe
Latchbolt operated by:
■ inside lever/knob
■ outside lever/knob when
electric power is removed
from the solenoid
■ outside key
Outside lever/knob locked
by:
■ applying 24 VAC/VDC to the
solenoid; remains locked only
while power continues to be
applied
Outside lever/knob unlocked
by:
■ removing 24 VAC/VDC from
the solenoid
Inside lever/knob is always
unlocked
3–2
Inside
EWEU–Electrically Unlocked–Fail Secure
Latchbolt operated by:
■ inside lever/knob
■ outside lever/knob when
electric power is applied to
the solenoid
■ outside key
Outside lever/knob locked
by:
■ removing 24 VAC/VDC from
the solenoid
Outside lever/knob unlocked
by:
■ applying 24 VAC/VDC to the
solenoid; remains unlocked
only while power continues
to be applied
Inside lever/knob is always
unlocked
W Series Service Manual