Further Explanations Of Humidity And District Heating Control - Genvex OPTIMA 270 Operating Instructions Manual

7. FURTHER EXPLANATIONS OF HUMIDITY
AND DISTRICT HEATING CONTROL
7.1 Humidity control explanation
Level 4 = 100%
Level 3 = 75%
Level 2 = 50%
Level 1 = 30%
7.2 District heating control explanation
Flowtemp. setpoint
EK6 Max flow temp. (90 Radiator)
Set 53 (°C)
EK6 Max flow temp. (45 Floor)
20°C
EG1
65%
±15%
EG3
35%
12°C 2°C
EK2 EK4
EK5 set = 5 °C
EK5 set = 4 °C
EK5 set = 3 °C
EK5 set = 2 °C
EK5 set = 1 °C
EK5 set = 0 °C
20°C Outdoor air temp.
EK3
Example 1:
At a fresh air temperature of 10°C the RH-
control aims for 55 % humidity measured
in the extract air.
Example 2:
At a fresh air temperature of 20°C the
RH-control aims for 60 % humidity
measured in the extract air.
EG1 and EG2 is used to change the
characteristics of the humidity control
values by moving the compensation curve
(indicated by the green line on the graph).
Example:
Set point = ± 15% (EG3)
With a desired fan speed of 2 set to 50 %,
the fan speed will be able to
fluctuate from 35 % to 65 %
Humidity control is only available in
fanspeed 2 and will automatically be
deactived running in any other fanspeed
mode.
Regulation of the fan speed takes place
±1% for every 10
min. (factory setting EG4)
The district heating control system will
automatically adjust the flowtemperature
of the heating system according to the
outdoor air temperature.
The characterstic of the heating curve can
be adjusted by EK2 and EK3
EK2 adjust the requested flow
temperature at outdoor air temperature
-12 °C
EK3 adjust the requested outdoor
temperature when the flowtemperature is
20 °C
To increase heating capacity of the
heating system at a specific outdoor air
temperature. EK4 and EK5 can be used to
offset the heating curve characterstics
21