One-Piece Doors Only; Programming Buttons - Chamberlain HD620EV Manual

Introduction
Withouta properly installedsafetyreversalsystem, p ersons(particularlysmallchildren)couldbe
SERIOUSLYINJURED or KILLEDbya closinggaragedoor.
• Incorrectadjustmentof garagedoor travellimitswill interferewithproper operationof safety
reversal s ystem.
• AfterANYadjustments are made,the safetyreversalsystemMUSTbe tested.Door MUSTreverse
on contact w ith1-1/2"(3.8 cm)high object(or2x4 laidflat)on floor.
One-Piece Doors Only
WhensettingtheUP travelfor a one-piecedoor ensurethatthedoor does notslant backwards when
fullyopen (UP).Ifthedoor is slantedbackwards thiswill causeunnecessary buckingand/orjerking
whenthe door isopening or closing.
To preventdamageto vehides,be surefullyopen door providesadequateclearance.
Your garagedoor opener is designedwithelectroniccontrolsto makesetup andadjustments easy.The
adjustments allowyou to programwhere the doorwill stop inthe open (UP)and close(DOWN)position.
The electroniccontrolssensetheamountof forcerequiredto openand closethedoor. Theforce is
adjustedautomatically whenyou program thetravel.
Ifanythinginterfereswiththedoor's upwardtravel itwill stop.Ifanythinginterfereswiththe door's
downwardtravel, itwillreverse.
Programming Buttons
Theprogrammingbuttonsare locatedon the leftside panel of thegarage door openerand are used
to programthetravel.
PROGRAMMING BUTTONS
AdiustmentButton
DOWNButton
Towatcha shortinstructional v ideoon howto programthe travelon
yournewgarage door openeruse your smartphoneto readthe QR
Code:
28