Using The Wall-Mounted Control Console; To Open The Door Manually - Chamberlain LiftMaster Professional Security+ 3850 Owner's Manual

Using the Wall-Mounted Door Control
THE MOTION DETECTING CONTROL CONSOLE
Press the push bar to open or close the door.
Press again to reverse the door
during the closing cycle or to
stop the door while it's opening.
This door control contains a
motion detector that will
automatically turn on the light
when it detects a person
entering the garage. This feature
can be easily turned off for
extended work light use.
Light feature
Press the Light button to turn the opener light on or off. It
will not control the opener lights when the door is in
motion. If you turn it on and then activate the opener, the
light will remain on for 4-1/2 minutes. Press again to turn
it off sooner. The 4-1/2 minute interval can be changed to
1-1/2, 2-1/2 or 3-1/2 minutes as follows: Press and hold
the Lock button until the light blinks (about 10 seconds).
A single blink indicates that the timer is reset to 1-1/2
minutes. Repeat the procedure and the light will blink
twice, resetting the timer to 2-1/2 minutes. Repeat again
for a 3-1/2 minute interval, etc., up to a maximum of four
blinks and 4-1/2 minutes.
When using the opener lights as working lights, we
recommend that you first disable the motion sensor See
Motion Detecting Light Feature, following.
Motion Detecting Light Feature: The opener light will
turn on automatically when a person walks in front of the
wall-mounted control console. This feature works by
detecting motion and body heat and may not work in
temperatures around 100˚F, 37.7C. The opener light will
come on for 5 minutes, then shut off automatically if no
additional motion or heat differential is calculated.
To disable this feature, slide the Detector Switch on the
right side of the door control down (off).
We recommend that you disable the motion sensor when
using the opener lights as working lights. Otherwise, they
will turn off automatically if you are working beyond the
sensor's range.
Lock feature
Designed to prevent operation of the door from hand-held
remote controls. However, the door will open and close
from the Door Control, the Outside Keylock and the
Keyless Entry Accessories.
To activate, press and hold the Lock button for 2
seconds. The push bar light will flash as long as the Lock
feature is on.
To turn off, press and hold the Lock button again for
2 seconds.The push bar light will stop flashing. The Lock
feature will also turn off whenever the "Smart" (learn)
button on the motor unit panel is activated.
Push
Button
Detector
Switch
Lock
Light
Button
Button
Additional feature when used with the
3-button hand-held remote
To control the opener lights:
1. With the door closed, press and
hold a small remote button that you
want to control the light.
2. Press and hold the Light button on the control console.
3. While holding the Light button, press and hold the
Lock button on the control console.
4. After the opener lights flash, release all buttons.

To Open the Door Manually

WARNING
To prevent possible SERIOUS INJURY or DEATH from a
falling garage door:
CAUTION
• If possible, use emergency release handle to disengage
trolley ONLY when garage door is CLOSED. Weak or broken
springs or unbalanced door could result in an open door
falling rapidly and/or unexpectedly.
• NEVER use emergency release handle unless garage
doorway is clear of persons and obstructions.
• NEVER use handle to pull door open or closed. If rope knot
becomes untied, you could fall.
The door should be fully closed if
possible. Pull down on the
emergency release handle and
lift the door manually. To
reconnect the door to the opener,
press the control console push
bar.
The lockout feature prevents the
trolley from reconnecting
automatically. Pull the
emergency release handle down
and back (toward the opener).
The door can then be raised and
lowered manually as often as
necessary. To disengage the
lockout feature, pull the handle
straight down. The trolley will
reconnect on the next UP or
DOWN operation, either
manually or by using the control
console or remote.
27
Trolley
Release
Emergency
Arm
Release
Handle
(Pull Down)
MANUAL DISCONNECT
POSITION
Trolley
Release
Arm
Emergency
Release
Handle
(Down and Back)
LOCKOUT POSITION