Planning (Continued)
ONE-PIECE DOOR INSTALLATIONS
•Generally, a
•Depending on your door’s construction, you may need additional mounting hardware for the door bracket (Step 11).
WARNING
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". Otherwise, the safety reversal system may not work properly.
•The floor or the garage door MUST be repaired to eliminate the gap.
ONE-PIECE DOOR WITHOUT TRACK
Slack in chain tension is normal when garage door is closed.
Header
Wall
Access
Door
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| Safety |
| Gap between floor | Reversing Sensor |
Safety Reversing | and bottom of door |
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must not exceed 1/4" |
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Sensor |
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FINISHED CEILING
Support bracket & fastening hardware is required. 
See page 17.
Motor Unit
Wall- mounted Door Control
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ONE-PIECE DOOR WITH TRACK
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Safety | across width of door | Sensor |
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Reversing Sensor |
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5