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General| Model Number | 139.53990DS |
|---|---|
| Type | Chain Drive |
| Horsepower | 1/2 HP |
| Frequency | 60 Hz |
| Safety Sensors | Yes |
| Battery Backup | No |
| Drive Type | Chain |
| Voltage | 120V |
| Remote Controls Included | 2 |
| Warranty | 1 Year Limited |
Explains the meaning of safety symbols and signal words used throughout the manual.
Advises on disabling locks, checking door balance, and avoiding entanglement hazards.
Lists crucial safety warnings before and during installation.
Explains how to find the correct position for the header bracket.
Provides instructions for attaching the header bracket to the wall.
Details mounting the header bracket to the ceiling.
Guides on connecting the rail assembly to the header bracket.
Details the installation and importance of the safety reversing sensor.
Explains how to set the door's open and close travel limits.
Guides on testing and adjusting the force required for door operation.
Details how to test the door's safety reversal mechanism.
Explains how to verify the Protector System's functionality.
Lists critical safety instructions during operation.
Addresses sensor problems preventing closure and remotes not activating the door.
Covers door reversal, humming motor, and binding issues.
Lists flash codes and troubleshooting solutions.
Provides instructions for programming additional remote controls.
Details how to program or change the PIN for keyless entry.
