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Notes on above technical data.
1. Sound data is based on that measured at 1 meter and will normally be
considerably reduced by the inclusion of insulation between it and the living
space.
2. Power consumed is for the total unit including both fans.
The ProAir 600 is fitted with the new generation electronically commutated (EC) motors
to drive its FB190C backward curved centrifugal fans.
One of the advantages of the new EC motors is their controllability. There is an option of
32 control points within the range. This means that each installation can be commissioned
to match the application exactly, within the air-flows shown. The ProAir technician will
programme in three speeds suitable for your house size.
With a traditional AC induction motor, efficiency is compromised at lower speeds, which
is the region that ventilation fans are usually operated at. This is why the electronically
commutated motors are so well suited to this application.
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