Chamberlain 2000SDC 1/2HP - Manual (Page 28)

Operation of Your Opener
Activate the opener with any of the following:
• The Remote Control Transmitter. Hold push button
down until the door starts to move.
• The Door Control. Hold push bar or button down
until the door starts to move.
• The Outside Keylock or Keyless Entry. (See
Accessories)
When the opener is activated with the safety reversing
sensor installed and correctly aligned:
1. If open, the door will close. If closed, the door will
open.
2. If closing, the door will reverse.
3. If opening, the door will stop (allowing space for entry
and exit of pets and for fresh air).
4. If the door has been stopped in a partially open
position, it will close.
5. If obstructed while closing, the door will reverse.
6. If obstructed while opening, the door will stop.
7. The garage door will reverse in the closing cycle when
the invisible beam is broken. If fully open, the door
will not close when the beam is broken. The sensor
has no effect in the opening cycle.
If the sensor is not installed, or is not aligned correctly,
the door won't close from any remote transmitter. You
can close the door with the Door Control, the Outside
Keylock, or Keyless Entry, however, if you activate them
until down travel is complete
. If you release them too
soon, the door will reverse.
The opener lights will blink for 5 seconds when the safety
reversing sensor causes the door to reverse.
Opener Lights will turn on under the following
conditions: When the opener is initially plugged in; when
the power is interrupted; when the opener is activated.
They will turn off automatically after 4-1/2 minutes or
provide constant light when the Light feature is activated.
Bulb size is 100 watts maximum.
A
WARNING
Weak or broken springs could allow an open door to fall
(either rapidly or unexpectedly), resulting in serious
injury, death or property damage. If possible, use the
manual release rope and handle only when the door is
fully closed.
o
u
o
Trolley
ReleaseArm
(in Manual
Disconnect
Position)
Lockout position
(Manual disconnect)
To open the door
manually:
The door should be fully
closed if possible. Pull
down on the manual release
handle (so that the trolley
release arm snaps into a
vertical position) and lift the
door manually. The lockout
feature prevents the trolley
from reconnecting auto­
matically, and the door can
be raised and lowered
manually as often as
necessary.
To reengage the trolley:
Pull the manual release
handle toward the opener at
a 45° degree angle so that
the trolley release arm is
horizontal. The trolley will
reconnect on the next UP or
DOWN operation, either
manually or by pressing the
Door Control push bar.
0
u
0 -Trolley
5-----Trolley
^Release Arm
Manual
Release
Handle
(Pull at 45° angle)
To reconnect
Operation of the Door Controls
(both are not included with all models)
Lighted Door Control Button;
Lighted Push Bar - Door Control Panel: Press 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.
Light Feature - Door Control Panel: Press the Light
button. If the opener light is off, it will turn on.
If the opener light is on, (even in the 4-1/2 minute
automatic cycle) it will turn off.
But if you use the Light button to turn the light(s) on and
then activate the opener, the light(s) will turn off after
4-1/2 minutes.
The Light button will not control the opener lights when
the door is in motion.
Lock Feature - Door Control Panel: The Lock
feature is designed to prevent operation of the door from
remote controls. However, the door will open and close
from the Door Control push bar, 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"
button on the opener panel is activated.
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