Nibe ERS 10-400, Руководство по установке

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Preheating the
outdoor air
If the extract air temperature is too low, the supply air
fan slows down to prevent the condensation water in
the heat exchanger from freezing.
To prevent this from happening too often in areas with
colder climates, an electrical air heater EAH (EB17) and
an outdoor air sensor (BT23) should be installed in the
outdoor air duct as illustrated. EAH heats the incoming
outdoor air so that the extract air temperature does not
fall to the stated level.
See the Installer Manual for EAH for more information.
EB17 BT23
ERS 10
13 Chapter 4 | Pipe and ventilation connections NIBE ERS 10-400