5.6 Wind influence
A230.1
A wind speed sensor can be connected to the ECL controller in
order to increase the desired flow temperature when it is windy
outside the building.
The signal from the wind speed sensor is a 0 - 10 volt signal which
is applied directly to input S8. The voltage rises at higher wind
speeds.
The measured voltage on input S8 must be converted to a wind
speed value by the controller. When the wind speed gets higher
than the set limit, the controller gradually increases the desired
flow temperature to compensate for the higher heat loss from the
building.
The following settings set up the scaling and influence.
Parameters indicated with an ID no. like "1x607" mean a universal
parameter.
x stands for circuit / parameter group.
MENU > Settings > Wind influence
Infl. — max.
1x057
If the wind speed is higher than the set value in ‘Limit’, the desired flow
temperature will be increased by the number of degrees per 1 m/s.
See Appendix “Parameter ID overview”
Example:
The wind limit is active at wind speed higher than 10 m/s.
The max. influence is set to 2.0.
The actual wind speed is 2 m/s over limit.
Result:
The desired flow temperature is increased by 2.0 × 2 = 4.0 degrees.
MENU > Settings > Wind influence
Filter constant
1x081
The filter constant dampens the measured input data by the set factor.
See Appendix “Parameter ID overview”
Minor
value:
Minor dampening (low filter constant)
Major
value:
Major dampening (high filter constant)
82 | © Danfoss | 2017.05
VI.LG.H4.02
Operating Guide ECL Comfort 210/296/310, application A230
