Chamberlain 1145-1/3HP Position the Opener, INSTALLATION-SECTIONAL Door & 1-PIECE Door with Track

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INSTALLATION STEP 3

Position the Opener

Follow instructions which apply to your door type as illustrated.

TO PREVENT DAMAGE TO LIGHT WEIGHT DOORS AND/OR DOORS WITH WINDOWS, DO NOT REST THE OPENER ON THE DOOR.

INSTALLATION-SECTIONAL DOOR & 1-PIECE DOOR WITH TRACK

NOTE: A 2 x4 is convenient for setting an ideal door to T-rail distance. It is not necessary where headroom is insufficient.

PROCEDURE: Raise the opener onto a stepladder. Open garage door. Place a 2x4 on the top section of door near centerline as shown. Rest T-rail on 2x4 as shown.

INSTALLATION - 1-PIECE DOOR WITHOUT TRACK

PROCEDURE: Measure the distance from floor to top of door (in fully open position and parallel to the floor). Using a stepladder as a support, raise opener to the same distance from the floor (it will have a slight angle as shown).

The top of the door should be level with the top of opener. For maximum efficiency, do not position opener more than 2 inches above this point.

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Contents Garage Door Opener Start by Reading These Important Safety Rules Features of Your Opener SpecificationsAccessories Standard Remote Control TransmitterChannel Remote Control FT T-RAILPage HOW to Activate the Opener HOW to Operate the Door ManuallyHOW the Door Moves When the Opener is Activated Maintenance of Your Opener Care of the OpenerTwice a Year Check to be Sure Door Opens & Closes Fully Once a YearAttach T-Rail To Opener Attach Chain to SprocketTighten the Chain Assembly Installation Step Sectional Door & 1-PIECE Door with TrackONE-PIECE Door Without Track ExampleINSTALLATION-SECTIONAL Door & 1-PIECE Door with Track Installation 1-PIECE Door Without TrackPosition the Opener Hang the Opener Wiring Instructions for Accessories Operation Lighted Door Control ButtonModels 1160 and 1150 only Connect Electric Power Procedure for Permanent Wiring if required by local codesAttach Manual Release Rope & Handle Sectional Door Installation Procedure All One-Piece Door Installation ProcedureFasten Door Bracket and Plate Sectional Doors Installation Connect Door Arm to TrolleyOpen Door Adjustment Closed Door Adjustment ALL ONE-PIECE DoorsLimit Adjustment Chart If Door does not Close CompletelyIf ONE-PIECE Door does not Close Completely If Opener Reverses in Fully Closed PositionAdjust Force Force Adjustment ChartProceed to Step Test Down Close Force If Door Doesnt Open AT Least 5 FeetTest Safety Reverse System Installation of Optional Safety FeatureRadio Controls Garage Door Openers With Receiver Smart Code ButtonHaving a Problem? Review Pages 2 and 3 Before Proceeding DUE to Power Failure Opener Lights Doesnt Turn onDoesnt Turn OFF Unit Must be GroundedRail Assembly Parts List Installation Parts List Button AssemblyChassis Assembly Parts List KEY Part DescriptionNot Shown Liftmaster Garage Door Opener ONE-YEAR Limited Warranty Limited Warranty on Motor

1160-1/2HP, 1145-1/3HP, 1150-1/3HP specifications

The Chamberlain 1150-1/3HP, 1145-1/3HP, and 1160-1/2HP garage door openers represent a pinnacle of performance and reliability in the world of residential garage automation. Each model combines innovative technology with essential features to provide homeowners with the convenience and security they need.

The Chamberlain 1150-1/3HP is designed for standard single and double garage doors. Its powerful 1/3 horsepower motor ensures smooth and efficient operation, making it an ideal choice for everyday use. One standout feature is its ultra-quiet operation, thanks to the built-in soft start and stop system. This technology minimizes noise, making it perfect for homes with living spaces adjacent to the garage. Additionally, the opener comes equipped with MyQ technology, enabling users to monitor and control their garage door from anywhere using a smartphone app.

Moving on to the Chamberlain 1145-1/3HP, this model shares many features with the 1150 but enhances security with its wireless keypad and remote control capabilities. The wireless keypad allows for keyless entry, providing users with the flexibility to open the garage door with a simple code. This feature is particularly useful for families or when handing over access to trusted individuals, such as service personnel.

Finally, the Chamberlain 1160-1/2HP takes performance up a notch with its more powerful motor, capable of handling heavier doors. The 1/2 horsepower motor ensures increased lifting capacity and improved durability, making it suitable for larger or insulated garage doors that may require more force to operate. Like its counterparts, the 1160 is also compatible with MyQ technology, allowing for seamless smartphone integration.

All three models feature a robust design with a steel-reinforced belt drive system that offers strength and reliability. Safety features such as the SecureCode technology ensure that the remote control codes cannot be easily copied, enhancing security for your home. Additionally, they include safety reversing systems that stop and reverse the door if an obstacle is detected, ensuring safe operation for families.

In summary, the Chamberlain 1150-1/3HP, 1145-1/3HP, and 1160-1/2HP garage door openers are distinguished by their blend of power, quiet operation, advanced security features, and smart technology. Ideal for any homeowner seeking convenience and peace of mind, these models stand out as exceptional choices in the realm of garage door automation.