Planning

Identify the type and height of your garage door. Survey

• Look at the garage door where it meets the floor. Any

your garage area to see if any of the conditions below

gap between the floor and the bottom of the door must

apply to your installation. Additional materials may be

not exceed 1/4" (6 mm). Otherwise, the safety reversal

required. You may find it helpful to refer back to this page

system may not work properly. See Adjustment Step 3.

and the accompanying illustrations as you proceed with

Floor or door should be repaired.

the installation of your opener.

SECTIONAL DOOR INSTALLATIONS

Depending on your requirements, there are several

• Do you have a steel, aluminum, fiberglass or glass

installation steps which may call for materials or hardware

panel door? If so, horizontal and vertical reinforcement

not included in the carton.

is required (Installation Step 11).

• Installation Step 1 – Look at the wall or ceiling above

• The opener should be installed above the center of the

the garage door. The header bracket must be securely

door. If there is a torsion spring or center bearing plate

fastened to structural supports.

in the way of the header bracket, it may be installed

• Installation Step 5 – Do you have a finished ceiling in

within 4 feet (1.22 m) to the left or right of the door

your garage? If so, a support bracket and additional

center. See Installation Steps 1 and 11.

fastening hardware may be required.

• If your door is more than 7 feet (2.13 m) high, see rail

• Installation Step 10 – Depending upon garage

extension kits listed on Accessories page.

construction, extension brackets or wood blocks may

 

be needed to install sensors.

 

• Installation Step 10 – Alternate floor mounting of

 

the safety reversing sensor will require hardware not

 

provided.

 

• Do you have an access door in addition to the garage

 

door? If not, Model 7702CB Emergency Key Release is

 

required. See Accessories page.

 

SECTIONAL DOOR INSTALLATION

 

FINISHED CEILING

 

 

 

Support bracket &

 

 

Slack in chain

fastening hardware is

 

Horizontal and vertical reinforcement

required. See page 15.

 

tension is normal

 

is needed for lightweight garage doors

 

 

when garage

 

 

(fiberglass, steel, aluminum, door with

 

 

glass panels, etc.). See page 23 for details.

door is closed.

 

 

 

 

 

Header Wall

 

 

 

 

Extension Spring

Motor Unit

 

OR

 

 

 

 

 

Torsion Spring

 

 

 

Wall-mounted

 

 

Door Control

 

— —

Vertical

Centerline of

 

— —

Garage Door

Safety

Reversing

 

Sensor

Gap between floor and bottom of

 

 

door must not exceed 1/4" (6 mm).

Safety Reversing Sensor

Access Door

Header

CLOSED POSITION

Bracket Trolley

 

 

Stop Bolt

Trolley

 

 

Garage

 

 

 

Door

 

 

Chain

Spring

 

 

 

 

Emergency

 

 

 

 

Straight

Release

 

Door

 

Rope

 

Arm

 

& Handle

Header

Curved

Wall

Door Arm

 

Door

Garage

Bracket

Door

 

4