System information

17
Special knowledge
Cooling – indoor compensated supply with dew point
control
In the operation mode cooling – indoor compensated supply
with dew point control, will help you to prevent condensation
problems if the actual condition in the room/zone is different
from the design criteria.
The supply water set point is referring to the design supply
temperature of the system and is the absolute minimum
temperature the C-46 will provide the system. The default
setting is 18°C and has to be adjusted to the dimensioning
design temperature.
The functions also allow using a dew point margin, as an extra
safety to compensate for the variation in room condition,
occupation of the room etc. The default setting is 4 kelvin and
can be adjusted to the actual need.
Paremeters and settings
The functions require humidity sensor H-56 and can handle up
to 6 sensors, placed in different room/zones. The sensor mode
function allows to decide which value have to be used in the
dew point calculation, it can be set as an average or maximum
value of the sensor. For cooling applications it is always
recommended to use the maximum sensor mode.
Resulting supply water temperature
The dew point control is activated if the cooling supply
setpoint is below the calculated dew point. The function
overrules the cooling supply setpoint and automatically adapts
the temperature according to calculated dew point based on
the measured room temperature and humidity of the room/
zone. The resulting supply water temperature is the calculated
dew point + the dew point margin.
Setpoint range: 5–25 °C
Parameter range: 1–10 kelvin