Chamberlain LiftMaster Professional 3780, Instructions Manual

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Door Types
Before You Begin
1. Look at the wall or ceiling above the garage door. The header bracket must be securely fastened to structural supports.
2. Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware (not supplied) may be required.
3. Depending on your door's construction, you might need a special door arm. See your dealer.
4. Do you have an access door in addition to the garage door? If not, Model 1702E Outside Quick Release Accessory is required.
5. Determine the type of door and whether the Chamberlain Arm or Protector System is required.
A. One-Piece Door with Horizontal Track Only
B. One-Piece Door with Horizontal and Vertical Track – Special door arm (E, The Chamberlain Arm™) and The Protector System (29 (9))
are required. See your dealer.
C. Sectional Door with Curved Track – See 20B – connect door arm. The Protector System (29 (9) is required for doors that are over 2.5m in
height.
D. Canopy door – Special door arm (E, The Chamberlain Arm™) and The Protector System (29 (9)) are required. See your dealer.
E. The Chamberlain Arm™ for use on door types B and D.
Contents
Page Illustration
Safety Rules . . . . . . . . . . . . . . . . . . . . . . . 1
Before you Begin . . . . . . . . . . . . . . . . . . . 1
Door Types . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . . . . . 1
Tools Required . . . . . . . . . . . . . . . . . . . . . 2 . . . . . . . . . . . . . . . . 2
Hardware Provided . . . . . . . . . . . . . . . . . 2 . . . . . . . . . . . . . . . . 3
Completed Installation . . . . . . . . . . . . . . 2 . . . . . . . . . . . . . . . . 4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . . . . . . . . . . . . . 5-11
Installation . . . . . . . . . . . . . . . . . . . . . . . 2-4 . . . . . . . . . . . . 12-21
Programming your Opener & Remote . . 4 . . . . . . . . . . . . . . . 22
Program your Keyless Entry . . . . . . . . . .5 . . . . . . . . . . . . . . .23
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 5 . . . . . . . . . . . . 24-26
Install the Protector System ™
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . 5 . . . . . . . . . . . . 27
Special Features of the
5580/3780 . . . . . . . . . . . . . . . . . . . . . . . . .6 . . . . . . . . . . . . 28
Accessories . . . . . . . . . . . . . . . . . . . . . . . 6 . . . . . . . . . . . . 29
Replacement Parts . . . . . . . . . . . . . . . . . . 6 . . . . . . . . . . 30-31
Having a Problem? . . . . . . . . . . . . . . . 6-7
Care of your Opener . . . . . . . . . . . . . . . . 7
Maintenance of your Operator . . . . . . . . 7
Operation of your Opener . . . . . . . . . . . . 8
Specifications . . . . . . . . . . . . . . . . . . . . . . 8
The force, as measured on the closing edge of the
door, should not exceed 400 N (40kg). If the closing
force is more than 400 N, the Protector System must
be installed. Do not use the force setting procedure
to compensate for a binding or sticking garage door.
Excessive force will interfere with the proper operation of
the Safety Reverse System or damage the garage door.
Permanently fasten the caution label adjacent to the
lighted door control button as a reminder of safe
operating procedures.
Disengage all existing garage door locks to avoid
damage to garage door.
Install the lighted door control button (or any additional
push buttons) in a location where the garage door is
visible, at a height of at least 1,5m and out of the
reach of children. Do not allow children to operate
push button(s) or remote control(s). Serious personal
injury from a closing garage door may result from misuse
of the opener.
Activate opener only when the door is in full view,
free of obstructions and opener is properly adjusted.
No one should enter or leave the garage while the
door is in motion. Do not allow children to play near
the door.
Use manual release only to disengage the trolley and, if
possible, only when the door is closed. Do not use the
red handle to pull the door open or closed.
Disconnect electric power to the garage door opener
before making repairs or removing covers.
This product is provided with a power supply cord of
special design which, if damaged, must be replaced by
a power supply cord of the same type; such a power
supply cord may be obtained from your local LiftMaster
distributor and must be fitted by a specialist.
Failure to comply with the following instructions may result in serious personal injury or property damage.
• Read these instructions carefully
• The garage door opener is designed and tested to offer reasonable safe service provided it is installed and
operated in strict accordance with the instructions in this manual.
These safety alert symbols mean Warning – a personal safety or property damage instruction. Read these
instructions carefully.
WARNING: If your garage has no service entrance door, Model 1702E Outside Quick Release must be installed. This accessory
allows manual operation of the garage door from outside in case of power failure.
Keep garage door balanced. Sticking or binding doors
must be repaired. Garage doors, door springs, cables,
pulleys, brackets and their hardware are under extreme
tension and can cause serious personal injury. Do not
attempt to loose, move or adjust them. Call for garage
door service.
Do not wear rings, watches or loose clothing while
installing or servicing a garage door opener.
To avoid serious personal injury from entanglement,
remove all ropes connected to the garage door
before installing the door opener.
Installation and wiring must be in compliance with your
local building and electrical codes. Connect the power
supply cord only to properly earthed mains.
Lightweight doors of fiberglass, aluminum or steel
must be substantially reinforced to avoid door
damage. (See page 3.) The best solution is to check
with your garage door manufacturer for an opener
installation reinforcement kit.
The safety reverse system test is very important.
Your garage door MUST reverse on contact with a
40mm obstacle placed on the floor. Failure to properly
adjust the opener may result in serious personal injury
from a closing garage door. Repeat the test once a
month and make any needed adjustments.
This unit should not be installed in a damp or wet
space.
Door must not extend over public byway during
operation.
Start by reading These Import Safety Instructions
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