 Warm
air heater type "Ad" are a version, CE approved of the
series "A",
whose difference is to have a centrifugal fan instead of an helicoidal one.
These apparatuses, with horizontal air flow, have an available static pressure
for an air distribution trough pipe, so they are suitable for heating ambients
with several rooms, or when the heater must be installed outside the heated
room, or when the heating air is taken from outside or mixed with the recovery
air.
These apparatuses can be fitted, on demand, whit air inlet filter, and fire
damper on air outlet side.
The ventilating section is made of a box with one or two double inlet
centrifugal fans with direct driven electric motor 1F. For the other features
refer to the
series "A".
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