Installation Guide
ECL Comfort 210 / 310, application A214 / A314
A314.3:
Wind influence on fan speed
A wind speed sensor can be connected to the ECL controller in
order to control the fan speed. Typically, the more windy, the
higher the fan speed.
The signal from the wind speed sensor is a 0-10 volt signal which
is applied directly to input S10. The voltage rises at higher wind
speed.
The measured voltage on input S10 must be converted to a wind
speed value by the controller.
The following procedure sets up the scaling.
MENU > Settings > Fan / acc. control
MENU > Settings > Wind influence
Wind actual
Circuit
Setting range
Factory setting
All
The actual wind speed is indicated by the unit ‘m/s’ (meter per second).
Push the dial to see the graph and enter the value sets for the input
voltage (2 and 10 volt) and displayed wind speed.
Wind speed:
0.0 ... 75.0 m/s
Fixed voltage settings:
2 V and 10 V
Factory settings:
(2 , 5.0) and (10 , 25.0)
This means that the ‘Wind actual’ is 5.0 m/s at 2.0 volt and 25.0
m/s at 10 volt.
Typically, the higher the voltage, the higher the displayed wind
speed.
Example: Relationship between input voltage and displayed wind speed
Wind speed (m/s)
25. 0
5.0
2
10
Volt
This example shows that 2 volt correspond to 5.0 m/s and 10 volt correspond
to 25.0 m/s.
148
DEN-SMT/DK
VI.GU.A2.02
Danfoss District Energy
