prana 340S, Руководство по установке

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10
Aerodynamic calculation of air ducts, selection of
ventilation grilles and other additional elements should be
performed exclusively by a professional design engineer.
When the ventilation system is in operation, it is possible
that condensate accumulaes inside the unit. That wat
It is necessary to ensure condensate drainage from the
recuperator (see details in «Condensate drainage» section).