Chamberlain WHISPERDRIVE 182665D Owner's Manual page 5

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 11.
• Depending on your door's construction, you may need
additional mounting hardware for the door bracket
(Step 11).
ONE-PIECE DOOR WITHOUT TRACK
Header Wall
Safety Reversing Sensor
ONE-PIECE DOOR WITH TRACK
Gap between fl oor and
Safety
bottom of door must not
Reversing
exceed 1/4" (6 mm).
Sensor
Rail
Access
Door
Safety Reversing Sensor
Gap between fl oor and
bottom of door must not
exceed 1/4" (6 mm).
Access
Door
Safety
Reversing
Sensor
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 1/4" (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.
FINISHED CEILING
Support bracket &
fastening hardware
is required.
See page 15.
Wall-Mounted
Door Control
Header
Wall
Trolley Stop Bolt
Header
Bracket
Header
Wall
5
Motor unit
Trolley Stop Bolt
Belt
Header
Rail
Bracket
Door Bracket
Straight
Door Arm
Garage
Door
CLOSED POSITION
Belt
Trolley
Curved
Door Arm
Door
Straight
Bracket
Door
Garage
Arm
Door
CLOSED POSITION
Trolley
Emergency
Release
Rope &
Curved
Handle
Door
Arm
Rail
Emergency
Release
Rope &
Handle