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Forced
draft
Allows easier
maintenance of the fans. Fans deliver
air at ambient temperatures with
consequent higher efficiency.
Click image to play video |
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Induced
Draft
The plenum chambers
are mounted on top of the bundle
and protect the finned surface against
wind, rain, snow and partially hail.
The location of the fans also ensure
an optimum air distribution, limit
air recirculation and allows lower
level at maintenance walkway level.
Click image to play video
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Recirculated
unit
For special process
and suitable for cold climates,
it is advisable to provide warm
air recirculation to prevent freezing.
This recirculation may be achieved
by means of louvers, steam coils
and variable pitch fans.
Click image to play video
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