Allister Garage Door Opener
The manufacturer of Allister garage door opener units is Nortek. The company used to be called linear. The models of the Allister brand come with different drives and motor horsepower. All of them made after 1993 feature a set of safety sensors as well. These are standard accessories designed to make the opener safer. They produce an infrared beam. When it is interrupted during the closing of the door, a signal is sent to the opener and its reverses the course of the unit.
The brand has chain drive and belt drive openers. Both types of devices have the same design and mechanism of operation. The difference can be seen in the make of the drive. The chain is made from metal. This makes it fairly noisy during operation, but quite durable at the same time. The belt is made from a soft and flexible yet strong polymer material. This makes it much quieter during operation.
Most of the brand's openers have an AC motor. These motors are known to be reliable and durable. There are also models with a DC motor. These motors are becoming more widely used in electric operators. This is due to the fact that they are quieter compared to their counterparts. They have higher energy efficiency as well.
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Each Allister garage door opener system includes a complete hardware set. The rails come in various sizes to match doors of different heights. The main size options include 7, 8 and 10 feet. There are also special 12-foot rails designed for taller overhead doors. There are two types of rail shapes - T and I beam.
There is a comprehensive range of accessories available with the openers of the brand. These include 3-button remotes and keypads for wall mounting.