To Open The Door Manually - Chamberlain LiftMaster Security+ 2500DC Owner's Manual

Using the Wall-Mounted Door
Control
THE MOTION DETECTING DOOR CONTROL
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
Automatic Light Feature, following.
Automatic Light Feature: The opener light will turn
on automatically when a person enters the garage.
When a person walks in front of the door control, the
light will come on for five minutes, then shut off. This
feature works by detecting body heat and may not
work in temperatures around 100ûF (37.7ûC).
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 "Learn"
button on the motor unit panel is activated.
Additional features when used with the 3-Button
hand-held remote
A) To control the opener lights:
In addition to operating the door, you may
program the remote to operate the lights.
1. With the door closed, press and hold a small remote
button that you want to control the light.
Push
Bar
Detector
Switch
Lock
Light
Button
Button
28
2. Press and hold the Light button on the door control.
3. While holding the Light button, press and hold the
Lock button on the door control.
4. After the opener lights flash, release all buttons.
B) To operate one door using all three buttons on the
hand-held remote:
You may program the remote to
open the door with the large
button, close it with the middle
button, and stop the door's
movement with the third button.
NOTE: If remote is already
programmed, you must first erase
all codes. See Programming.
1. With the door closed, press and hold the large
remote push button.
2. Press and hold the Lock button on the door control
for a minimum of one second before proceeding to
next step.
3. Press and hold the door control push bar.
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
door control 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
Open
Close
Stop
Trolley
Release
Emergency
Arm
Release
Handle
(Pull Down)
MANUAL DISCONNECT
POSITION
Trolley
Release
Arm
Emergency
Release Handle
(Down and Back)
LOCKOUT POSITION