Installation Guide
ECL Comfort 210 / 310, application A214 / A314
Control of fan speed
A314.3:
The fan speed is controlled in relation to measured wind speed
(S10). When the wind speed gets higher, the control voltage is
gradually increased in order to increase the speed of the fan V1.
A314.4 and A314.6:
The desired pressures (Pascal) at S11 and S12 can be set individually
in relation to the outdoor temperature (S1).
When the pressure gets lower than the desired pressure, the
control voltage is gradually increased in order to increase the speed
of the fan more than the moment before. By this, the pressure
difference aligns with the desired pressure. A too high pressure
results in opposite procedure.
The control voltage remains on a fixed value as long as the pressure
corresponds to the desired pressure.
The desired pressure can be limited to a maximum and a minimum
pressure value.
The control voltage can be limited to a maximum and a minimum
% value.
When the ECL controller is in Saving mode:.
•
the fan velocity of V2 is controlled in relation to a desired
pressure at S11
•
V3 is OFF
The pressures at S11 and S12 are measured in Pascal and
represented as a 0 - 10 volt signal. Conversion of the 0 - 10 volt
signal into pressure is done in a conversion (scale) menu. Two
different voltages (X1 and X2) and the related pressure values can
be set.
A314.5, A314.7 and A314.9:
The limitation value for air quality (ppm) at S11 can be set.
When the air quality (ppm) gets higher than the set limit, the
control voltage is gradually increased in order to increase the speed
of the fan(s). Fan V3 is speed controlled by means of an off-set in
relation to fan V2.
The control voltage can be limited to a maximum and a minimum
% value.
When the ECL controller is in Saving mode:
•
the fan velocity of V2 can be controlled in relation to a desired
pressure at S11
•
V3 is OFF
The air quality at S11 is measured in ppm and represented as
a 0 - 10 volt signal. The higher ppm value, the less air quality.
Conversion of the 0 - 10 volt signal into ppm is done in a conversion
(scale) menu. Two different voltages (X1 and X2) and the related
ppm values can be set.
132
DEN-SMT/DK
VI.GU.A2.02
Danfoss District Energy
