21
EM-box (damper solution)
If you want to run the cooker hood via the ventilation unit, in some cases there may be insufficient air for cooker hood extraction.
If you install an EM-box, you can regulate the extracted air when the cooker hood is in operation, so that less air is drawn from, for in-
stance, the bathroom and the utility room. This will allow enough air for the cooker hood to extract sufficiently.
The EM-box is fitted with a metal filter that cleans the air in the cooker hood of grease particles efficiently. It thereby protects the ven-
tilation unit.
The system works as follows:
When you switch on the cooker hood, User selection 1 will be activated. The ventilation unit increases ventilation and sends an output
signal to the EM-box that it is to close the damper for extraction from other rooms. However, the damper does not close completely
and a reduced level of air extraction from other rooms will still take place.
When balancing the damper, the small stop blocks on the damper must be positioned so that the basic ventilation rate is maintained
from the other rooms.
The solution of connecting an EM-box is carried out easily by using a Nilan Fire box.
Connect User selection 1 directly to the Nilan Fire box.
Also connect up Modbus and the fire thermostat/external fire automation system through the Nilan Fire box.
You can connect up User selection 2 via S1 and S2 under fire damper connection in the Nilan Fire box.
NB! Wiring for 230V supply to EM-box damper not included.
ATTENTION
The EM-box solution cannot be used if the fire automation system has been activated in the software..
To Next Page
Loading...
Need help?
General
