3
PRE-INSTALLATION INSTRUCTIONS
1.
PRE-INSTALLATION PREPARATION
1.1.
Ensure sufficient side room space:
Minimum side room of 85mm from the face of the door drum wheel to the inside edge of the door support
bracket is required to install the opener (see Fig. 1) and maximum side room is 125mm before having to
move and re-fit the support bracket or install the drive unit fully inside the drum (Fig. 7)
1.2.
Ensure reasonable door condition and operation:
Before beginning the installation of the opener, check the operation of the door. The door must be well
balanced and be in reasonable condition. In general, the door should stay unmoving at around 900mm
and 1200mm above the floor. The door should not stick or bind in the guide tracks. The ideal operational
effort in raising or lowering the door should not exceed a force of 15kgF.
Fig. 1
Fig. 2
