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Connecting EHD damper
To conduct outdoor air down through a geothermal pipe in the ground makes good sense. The air is heated during the winter and cooled
in the summer by the ground.
But passing outdoor air through such a geothermal system may not be the best idea in the spring and autumn, but taking it directly
through a roof vent is recommended.
The CTS700 control system has a built-in function that measures whether the geothermal pipe or roof vent provides the best option
for air intake.
It measures the outdoor temperature during a stabilising period from the geothermal pipe and roof vent respectively. The measure-
ment indicates where it is best to direct the outdoor air. CTS700 sets the EHD damper to the best option, and continues ventilation for
a set period, referred to in the program as holding time.
The EHD damper is connected via relay 7 and set on the display menu item: Ventilation / Frost protection or de-icing / Frost protection.
ATTENTION
Damper, geothermal pipe and roof vent are not supplied by Nilan.
ATTENTION
When using a geothermal pipe, the "Low ventilation a low outdoor temperature" feature cannot be used.
(230V)
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