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Chamberlain HD520EV User Manual

Chamberlain HD520EV
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29
Adjustments
STEP 1 Program the Travel
Without a properly installed safetyreversal system, persons (particularly small children) could be
SERIOUSLY INJURED or KILLED bya closing garage door.
l
Incorrectadjustment ofgarage door travel limits will interfere with proper operation of safety
reversal system.
l
After ANY adjustments are made, the safetyreversal system MUSTbe tested. Door MUST reverse
on contact with 1-1/2" (3.8 cm) high object(or 2x4 laid flat) on floor.
1. Press and hold the Adjustment Button until the UP Button begins to flash and/or a beep is heard.
2. Press and hold the UP Button until the door is in the desired UP position.NOTE: The UP and
DOWN Buttons can be used to move the door up and down as needed.
3. Once the door is in the desired UP position pressand release the Adjustment Button.The
garage door opener lightswill flash twice and the DOWNButton will begin to flash.IMPORTANT
NOTE: For one-piece door installations refer to page 28.
4. Press and hold the DOWNButton until the door is in the desired DOWNposition.NOTE: The UP
and DOWN Buttons can be used to move the door up and down as needed.
5. Once the door is in the desired DOWNposition pressand release the Adjustment Button.The
garage door opener lightswill flash twice and the UP Button will begin to flash.
6. Press and release the UP Button. When the door travels to the programmed UP position,the
DOWN Button will begin to flash.
7. Press and release the DOWN Button.The door will travel to the programmed DOWNposition.
Programming is complete.
* If the garage door opener lightsare flashing 5 timesduring the steps for Program the Travel, the
programming has timed out.Ifthe garage door opener lights are flashing 10 timesduring the steps for
Program the Travel, the safetyreversing sensors are misaligned or obstructed (refer to page 27). When
the sensors are aligned and unobstructed,cycle the door through a complete up and down cycle using
the remote control or the UP and DOWNbuttons.Programming is complete. Ifyou are unable to operate
the door up and down,repeat the stepsfor Programming the Travel.
UP Button
Adjustment Button
DOWN Button
PROGRAMMING BUTTONS
1 2
3
4 5
6 7

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Chamberlain HD520EV Specifications

General IconGeneral
BrandChamberlain
ModelHD520EV
CategoryGarage Door Opener
LanguageEnglish

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