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KTA Instructions
When the fan is energized, the needle of the indicator on the face of the KTA box will move to the right. After the
fan has come up to speed (30 seconds), and the system has come to equilibrium, the needle should be adjusted so
that it is centered on the line saying "Initial Installation" located on the face of the meter. The needle is adjusted by
rotating the screw on the face of the meter with a screwdriver. Look at the needle after adjustment to make sure
that any magnetism in the screwdriver has not affected the needle position. If so, readjust until the needle is
centered when the screwdriver is removed. Deviations in the airflow of the system will cause the needle to move to
either side of the centerline of the indicator, which will alert the building occupant to a potential problem.
It is important to note that the system should be fully installed prior to indicator adjustment. If modifications are
made to the system that would affect the "normal" system airflow, the meter can be re-adjusted as described
above. To prevent unauthorized adjustment of the needle position, a black paper, self adhesive dot has been
provided in the envelope to cover the adjustment screw. A second dot has been provided for future adjustments.
http://radonpds.com/Instructions_KTA/Instructions_KTA.htm[8/16/2010 11:14:41 AM]
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