Chamberlain 1120E-1/2HP User Manual

BEFORE YOU BEGIN, PLEASE TAKE SOME TIME TO CAREFULLY EXAMINE THE ILLUSTRATIONS OF
TYPICAL GARAGE DOOR OPENER INSTALLATIONS. Some installation instructions vary.
Do you have a finished ceiling in your garage? If so, you will need a support bracket and additional fastening
hardware. Refer to Installation Step 5, Page 17 for specific requirements.
Do you have a lightweight or metal door (or does it have glass panels)? If so, horizontal and vertical
reinforcement is required. Refer to Installation Step 10, Page 20.
If possible, install the door opener 2.1m or more above floor with the manual release handle mounted
1.8m above the floor.
4
Chain
Horizontal & Vertical
Support - Not Supplied
(Needed Only for
Lightweight Garage
Door Installation)
SECTIONAL
DOOR INSTALLATION
Chain
Pulley Bracket
Header
Bracket
Trolley
Straight
Door
Arm
Manual
Trolley
Release
Door Bracket
& Plate
Garage
Door
Curve
Door
Arm
Chain
Header
Support Bracket
and Fastening
Hardware
(Not Supplied)
Support Bracket
and Fastening
Hardware
(Not Supplied)
ONE-PIECE DOOR INSTALLATION
Chain Pulley
Bracket
Header Bracket
Trolley
Straight
Door
Arm
Manual
Trolley
Release
Door Bracket
& Plate
Garage
Door
Curve
Door
Arm
Garage
Door
Spring
Header
Horizontal
Garage Door
Reinforcement
(If needed)
Vertical Garage Door
Reinforcement (if needed)
Slack in chain tension
is normal when
garage door is closed
Slack in chain tension
is normal when
garage door is closed

Chamberlain 1120E-1/2HP Specifications

General

Brand	Chamberlain
Model	1120E-1/2HP
Category	Garage Door Opener
Language	English