Chamberlain 248739 garage door opener

User Manual - Page 20

For 248739.

PDF File Manual, 44 pages, Download pdf file

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INSTALLATION STEP'"'I'O""''""'"""""'
Install TheProtectorSystem_
The safetyreversingsensormustbe connectedand
aligned correctlybefore the garage dooropenerwill
move inthe downdirection.
IMPORTANTINFORMATIONABOUTTHESAFETY
REVERSING SENSOR
When properly connected andaligned, the sensor will
detect anobstacfein the pathof its electronic beam. The
sending eye(with an amber indicator light) transmits an
invisible tight beamto the receiving eye (with a green
indicator fight). Ifan obstruction breaks the light beam
while the door is closing, the door will stop andreverse to
full open position, andthe opener lights wilt flash 10 times.
The units must be installed inside thegarageso that the
sending and receiving eyesface each other across the
door, no more than 6" (15 cm) abovethe floor. Either can
beinstalled on the teftor right of thedoor as long as the
sun never shines directly into the receiving eyelens.
The mounting brackets are designedto clip onto thetrack
of sectiona4garagedoors without additional hardware,
Besure power isNOTconnected to the garagedoor
openerBEFOREinstalling the safety reversingsensor.
To prevent SERIOUSiNJURYor DEATHfrom a closing
garagedoor:
Correctly connect and align the safety reversing
sensor. This required safety device MUSTNOT
be disabled.
{nstall the safety reversing sensor so beam is
NO HIGHERthan 6" (15 cm) abovegaragefloor_
if it is necessaryto mount the units on the wall, the
brackets must be securely fastened to asolid surtace such
as thewall framing. Extension brackets (seeAccessories)
areavailable if needed, tf installing in masonry
construction, adda pieceof wood at each location to
avoiddriIling extra holes in masonry if repositioning is
necessary,
Theinvisible light beampath must beunobstructed. No
part of the garagedoor (or door tracks, springs, hinges,
rollers or other hardware) may interrupt the beamwhile
thedoor is closing.
!
SafelyReversingSensor InvisibleLighlBeam
6"(15cm)max. ProtectionArea
abovefloor
Safety Reversing Sensor
6" (15 crn) max,
above floor
FACINGTHE DOORFROM INSIDETHE GARAGE,
2O
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