This manual describes the features and specifications of the LiftMaster 300 Windsor Drive Oak Brook, IL 60523 garage door opener.
The LiftMaster 8500 is a wall mount garage door opener for residential and light duty commercial use. It is intended for installation on sectional doors with torsion assemblies only and is for installation by trained garage door technicians; the manual also notes compatibility with MyQ and Security+ 2.0 accessories.
The manual covers planning and preparing the door, carton inventory, assembly, mounting, installing the door control, remote light, Protector System, cable tension monitor, power door lock, and optional battery backup. It also covers travel limits, force settings, safety tests, operation, programming, maintenance, troubleshooting, and repair parts.
| Power requirement | 120 Vac, 60 Hz only |
|---|---|
| Current draw | 1.0 AMP |
| Maximum door cycles | 10 complete cycles per hour |
| Torsion bar diameter | 1 inch (2.5 cm) |
| Maximum door height | Up to 14 feet (4.3 m) |
| Maximum door width | Up to 18 feet (5.5 m) |
| Maximum door area | Up to 180 sq. ft. (16.7 sq. m) |
| High lift | Up to 54 inches (137.2 cm) |
| Drum size | 4-6 inch (10-15 cm) drums |
It requires 120 Vac, 60 Hz only.
Do not exceed 10 complete cycles of door operation per hour.
It is compatible with doors that use a torsion bar and springs; the torsion bar must be 1 inch (2.5 cm) diameter.
No. The manual states it is not intended for use on low headroom tracks or garage doors utilizing extension springs.