One-piece door installations, Warning caution warning warning, Planning (continued) – Chamberlain 995XD User Manual

Page 5

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Safety
Reversing Sensor

Access
Door

Gap between floor
and bottom of door
must not exceed 1/4" (6 mm).

Header

Bracket

Door
Bracket

Straight
Door
Arm

Curved
Door Arm

Trolley

Emergency Release
Rope & Handle

Rail Assembly

Garage
Door

Header
Wall

CLOSED POSITION

Rail Bracket

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 12.

• Depending on your door’s construction, you may need

additional mounting hardware for the door bracket
(Step 12).

Safety Reversing Sensor

FINISHED CEILING

Support bracket
& fastening
hardware is required.
See page 19.

Safety Reversing
Sensor

Access
Door

Gap between floor
and bottom of door must not exceed 1/4" (6 mm).

Wall-mounted
Door Control

Header Wall

Motor unit

Rail

ONE-PIECE DOOR WITHOUT TRACK

ONE-PIECE DOOR WITH TRACK

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

floor MUST NOT exceed 1/4" (6 mm). Otherwise, the safety
reversal system may not work properly.

• The floor or the garage door MUST be repaired to eliminate

the gap.

WARNING

CAUTION

WARNING

Garage
Door

Header
Wall

Rail Assembly

Door Arm

Emergency
Release
Rope & Handle

Rail
Bracket