Chamberlain 248739 garage door opener

User Manual - Page 21

For 248739.

PDF File Manual, 44 pages, Download pdf file

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INSTALLINGTHEBRACKETS
]Besure powerto the opener is disconnected.InstaE_
andalign the brackets so thesensors will face each other
across the garagedoor, with the beam nohigher than
6" (15 cm) abovethe floor. They may beinstalled in one of
three ways,as follows.
Garage doortrackinstallation (preferred):
Stip the curved arms over the rounded edgeof each
door track, with the curved arms facing the door, Snap
into placeagainst the side of the track. It should lie
flush, with the tip hugging the backedge of thetrack,
as shown in Figure 1,
If your door track will not support the bracket securely,
waif installation is recommended.
Wall installation(Figures 2 and 3):
Placethe bracket againstthe wali 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
(seeAccessories) or wood blocks can be used,
Usebracket mounting ho}es as atemplate to tocate
anddrift (2)3It6" diameter pilot holes on the wal{at
each sideof the door, no higher than6" (15 cm) above
the floor,
Attach brackets to wall with tagscrews (not provided).
- If using extension brackets or wood blocks, adjust
right and left assemblies to the same distance out from
the mounting surface. Makesure all door hardware
obstructions are cleared.
Floor installation (Figure4):
Usewood blocks or extension brackets
(seeAccessories) to elevatesensor brackets so the
lenses will be no higher than 6" (15 cm) abovethe floor,
Carefully measure andplace right and left assemblies
at the same distance out from the wall. Be sure aI_door
hardware obstructions are cleared.
° Fastento thefloor with concreteanchors as shown.
HARDWARESHOWNACTUALSIZE
CarriageBdt WingNut Staples
1/4"-20x112" 1t4"-20
Figure1
Door
Safety
Reversing
Sensor
Bracket
Figure 2
Figure 3
(Providedwith
ExtensionBracket)
Figure 4
DOORTRACKMOUNT (BIGHT SIDE)
Indicator
Light
WALLMOUNT (BIGHT SIDE)
FastenWood Block to Wall with
LagScrews (not provided)
Indicator Safety
Light Reversing
Sensor
Bracket
WALL MOUNT (RIGHT SLOE)
Extension Bracket
See Accessories)
(Provided with
Extension Bracket
Safely Reversing
Sensor Bracket
Lens
h_dicator
Light
FLOORMOUNT(RIGHTSIDE)
' ' (notprovided
k i
indicator
Light
Reversing
Sensor
Bracket
2!
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