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General| Model Number | 139.5399011 |
|---|---|
| Horsepower | 1/2 HP |
| Remote Control | Yes |
| Safety Sensors | Yes |
| Battery Backup | No |
| Drive System | Chain Drive |
| Max Door Height | 7 ft |
| Voltage | 120V |
Critical safety warnings and instructions to follow before and during opener installation.
Guidance on finding and marking the correct position for the header bracket installation.
Procedures for securely mounting the header bracket to the wall or ceiling.
Instructions for connecting the opener rail assembly to the mounted header bracket.
Guidance on placing the opener unit correctly relative to the garage door and rail.
Instructions for securely hanging the opener motor unit using mounting brackets.
Procedure for mounting the wall-mounted door control console and wiring it.
Information on electrical connections, grounding, and wiring requirements for the opener.
Instructions for installing and aligning the safety reversing sensors for obstacle detection.
Methods for mounting safety sensor brackets to tracks, walls, or floor.
Performing the safety reversal test to ensure the door stops on obstruction.
Testing the safety reversing sensors to confirm their function for door closure.
Crucial safety warnings and guidelines for operating the garage door opener.
