One-Piece Door Installations; One-Piece Door Without Track - LiftMaster MERIK SECURITY+ 790LMK Manual Del Propietário

Planning (Continued)

ONE-PIECE DOOR INSTALLATIONS

• Generally, a one-piece door does not require reinforcement.
If your door is lightweight, refer to the information relating to
sectional doors in Installation, Step 10.
• Depending on your door's construction, you may need
additional mounting hardware for the door bracket (Step 10).

ONE-PIECE DOOR WITHOUT TRACK

Header
Wall
Gap between floor and bottom
of door must not exceed 6 mm.
Safety
Reversing Sensor
(Optional accessory)
ONE-PIECE DOOR WITH TRACK
Safety Reversing
Safety Reversing
Sensor
Sensor
(Optional Accessory) (Optional Accessory)
Access
Access
Door Door
Safety
Reversing Sensor
(Optional accessory)
Access
Access
Door
Door
Safety
Safety Reversing
Gap between floor and
Gap between floor
Reversing Sensor
Sensor
bottom of door must not
and bottom of door
(Optional Accessory)
(Optional Accessory)
exceed 6 mm. must not exceed 6 mm.
Without a properly working safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
• The gap between the bottom of the garage door and the fl oor
MUST NOT exceed 6 mm. Otherwise, the safety reversal
system may NOT work properly.
• The fl oor or the garage door must be repaired to eliminate
the gap.
Header
Header
Wall
Wall
Cable
Chain Sprocket
Header
Pulley Bracket
Bracket
Header
Wall
Wall
Header
Header
Wall-
Wall-
Bracket
Bracket
Mounted
Mounted
Door
Door
Control
Control
Door
Door
Garage
Garage
Bracket
Bracket
Door
Door
5
CLOSED POSITION
CLOSED POSITION
Cable
Chain Sprocket
Bracket Pulley Bracket
Trolley
Trolley
Header
Header
Bracket
Bracket
T-Rail Rail
Door
Door
Bracket
Bracket
Straight Curved
Straight Curved
Door Door
Door Door
Arm Arm
Arm Arm
Garage
Garage
Door
Door
CLOSED POSITION
CLOSED POSITION
Trolley
Trolley
Curved Curved
Door Arm
Door Arm
Straight
Straight
Door
Door
Arm
Arm
Emergency Release Rope
Emergency Release
& Handle
Rope & Handle
Emergency
Emergency
Release
Release
Rope & Handle
Rope & Handle
Chain
Chain
Rail
T-rail