
Electrified Locks Functions and Parts
W Series Service Manual 3–3
WWEL–Electrically Locked–Fail Safe WWEU–Electrically Unlocked–Fail Secure
Latchbolt operated by:
■ inside or outside lever/knob
when electric power is
removed from the solenoid
■ inside or outside key
Inside and outside
lever/knob locked by:
■ applying 24 VAC/VDC to the
solenoid; remains locked only
while power continues to be
applied
Inside and outside
lever/knob unlocked by:
■ removing 24 VAC/VDC from
the solenoid
Latchbolt operated by:
■ inside or outside lever/knob
when electric power is
applied to the solenoid
■ inside or outside key
Inside and outside
lever/knob locked by:
■ removing 24 VAC/VDC from
the solenoid
Inside and outside
lever/knob unlocked by:
■ applying 24 VAC/VDC to the
solenoid; remains unlocked
only while power continues
to be applied
YEL–Electrically Locked–Fail Safe YEU–Electrically Unlocked–Fail Secure
Latchbolt operated by:
■ inside lever/knob
■ outside lever/knob when
electric power is removed
from the solenoid
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
Latchbolt operated by:
■ inside lever/knob
■ outside lever/knob when
electric power is applied to
the solenoid
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
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