Komfovent C3.1, User'S Installation And Operation Manual

EN

UAB KOMFOVENT we reserve the right to make changes without prior notice

12

C3.1-16-01

2.5.2.1. Air quality control

Air quality control is designed according to:

•  CO

2

 sensor [0...2000 ppm];

• 

air quality sensor VOCq [0...100 %];

• 

air pollution sensor VOCp [0...100 %];

• 

relative humidity sensor [0...100 %];

Depending on the type of the selected sensor, the value of the air quality 

function to be maintained is set, and the air handling unit intensity will be adjusted 

according to that value. Ventilation intensity will be increased automatically in the 

case of deviation from the set value and decreased again when it is approached. 

For example, if the unit is designed with the CO

2

 maintenance function and is 

equipped with a CO

2

 sensor, after setting value 800 ppm, this set CO

2

 level will 

be maintained by adjusting ventilation intensity, i.e. ventilation intensity will be 

increased if the CO

2

 level grows and will be decreased when it returns to the 

previous condition.

This function is provided only in units with EC fans.

2.5.2.2. Exhaust air flow correction 

Set air flow intensity (or maintained air volume) for 1–99 minutes period can be 

corrected from -50 % till +50 % from set value. Example, after reducing exhaust 

air flow intensity, for some time overpressure will be caused (sometimes needed 

to start the fireplace or such).

Note: After this function has been activated unit will work for the set time period 

with present exhaust correction. After time period is over this function turns off 

automatically.

This function is provided only in units with EC fans. This function is not 

available in supply air units (OTK).

2.5.2.3. Summer night cooling 

If the room temperature (exhaust air) in summertime is 5 °C higher than the set-

point and outside temperature is between 12 °C and the setpoint, the ventilation 

level is automatically switched to the third intensity level at 00:15 am. The unit 

will operate in the third intensity level until 06:00 am or when outside air cools 

down (warms up) too much or the room temperature equals the setpoint. The air 

is being cooled only by fans, without heat or coolness recovery and additional air 

heating or cooling. When function is switched off the unit continues operating in 

the previous mode.

Function starts operating automatically if only the unit operates in the 

first or second operation mode. Function stops operating, when the 

mode is being changed.

Summer night cooling and minimum temperature control functions can 

not be activated at the same time. When one is selected, another’s 

function operation is blocked.

Enable

Setpoint

1000 ppm

Sensor

CO

2

Air quality control

Enable

Extract flow

-50%

Time

1 min.

Exhaust air flow correction

Enable

Summer night cooling