Attach The Emergency Release; Install The Automatic Door; Lock (Not Provided) - LiftMaster DDO8900W Manual Del Usuario

Installation
2

Attach the Emergency Release

1. Attach the sash chain to the emergency release cable, using an S-hook. Mount the
sash chain within reach, but at least 6 feet (1.83 m) above floor, avoiding contact
with vehicles to prevent accidental release.
Door Operator
Emergency
Release Cable
Sash Chain
3
Install the Automatic Door Lock (Not Provided)
The automatic door lock (model 841LM) is used to prevent the door from being
manually opened once the door is fully closed, see Accessories page 31.
NOTE: Older model 24 V door locks are
incompatible.
1. The lock has a 33' (10 m) cord and
may be mounted on either side of the
door. The third roller from the bottom
is ideal for most installations.
2. Ensure rail surface is clean and attach
the lock template to the track so that
the bolt hole is approximately 3"
(7.6 cm) from the center of a door
roller.
3. Drill holes as marked on the template.
4. Fasten automatic door lock to
the outside of the door track with
hardware provided.
5. Run bell wire up wall to door
operator. Use insulated staples to
secure wire in several places. Insert
wire through the bottom of the door
operator.
6. Plug the connector into either plug in
the door operator.
A secondary door lock can be installed on
the opposite side of the door following the
instructions above.
S-hook
4
6
1
33 feet (10.05 m)
max.
9
To prevent possible SERIOUS INJURY
or DEATH from a falling door:
• If possible, use emergency release
to disengage door ONLY when 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 unless
doorway is clear of persons and
obstructions.
HARDWARE
Sash Chain
HARDWARE
Screw
1/4"-20x1/2" (2)
5
Door Track
Lock
Template
3" (7.6 cm)
Roller
S-hooks (2)
2
3