AFA4000/E VAV Airflow Controller / p.65
6. Installation: Auto Sash Controller
As the size and format of individual fume hoods vary, the installation instructions that follow are
general. The principles outlined should remain valid in all cases.
Note: Before starting installation, ensure that the sash is free to move in its runners. Use silicon
spray on the sash runners or adjust the sash runner's alignment when the sash does not
move freely.
6.1 Auto Sash Control Unit
6.1.1 Mounting the unit
The Auto Sash Control Unit can be mounted as follows:
• Screwed flat to the outside of the fume hood roof - horizontal mounting
Note: For horizontal mounting, the control box should always be mounted with the lid / front
panel facing upwards.
• Screwed to the outside wall of fume hood wall - vertical mounting
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