Chamberlain WHISPER DRIVE 248754 User Manual

Page 22

INSTALLING THE BRACKETS

Be sure power to the opener is disconnected. Install
and align the brackets so the sensors will face each other
across the garage door, with the beam no higher than 6"
(15 cm) above the ﬂ oor. They may be installed in one of
three ways, as follows.

Garage door track installation (preferred):

• Slip the curved arms over the rounded edge of each

door track, with the curved arms facing the door. Snap
into place against the side of the track. It should lie
ﬂ ush, with the lip hugging the back edge of the track
(Figure 1).

If your door track will not support the bracket securely,
wall installation is recommended.

Wall installation (Figures 2 and 3):

• Place the bracket against the wall with curved arms

facing the door. Be sure there is enough clearance for
the sensor beam to be unobstructed.

• If additional depth is needed, an extension bracket

(see Accessories) or wood blocks can be used.

• Use bracket mounting holes as a template to locate and

drill (2) 3/16" diameter pilot holes on the wall at each
side of the door, no higher than 6" (15 cm) above the
ﬂ oor.

• Attach brackets to wall with lag screws (not provided).

• If using extension brackets or wood blocks, adjust

right and left assemblies to the same distance out from
the mounting surface. Make sure all door hardware
obstructions are cleared.

Floor installation (Figure 4):

• Use wood blocks or extension brackets (see

Accessories) to elevate sensor brackets so the lenses
will be no higher than 6" (15 cm) above the ﬂ oor.

• Carefully measure and place right and left assemblies

at the same distance out from the wall. Be sure all door
hardware obstructions are cleared.

• Fasten to the ﬂ oor with concrete anchors as shown.

Figure 1

Figure 2

Figure 3

Figure 4

DOOR TRACK MOUNT (RIGHT SIDE)

WALL MOUNT (RIGHT SIDE)

FLOOR MOUNT (RIGHT SIDE)

Door
Track

Lip

Lens

Safety
Reversing
Sensor
Bracket

Safety Reversing
Sensor Bracket

Safety
Reversing
Sensor
Bracket

Extension Bracket
(See Accessories)

(Provided with
Extension Bracket)

Attach with
Concrete Anchors
(not provided)

(Provided with
Extension Bracket)

Fasten Wood Block to Wall with
Lag Screws (not provided)

Lag Screws
(not provided)

Indicator
Light

HARDWARE SHOWN ACTUAL SIZE

Carriage Bolt
1/4"-20x1/2"

Wing Nut
1/4"-20

Staples