Orcon HRC-EcoMax Series Installation Manual page 27

6.2 Valves
You should preferably use TFF supply valves or EFF extractor valves. When installing
the valves, consider the following:
• Make sure the supply and extractor valves are at least 1.5 m away from each
other so that the airflows cannot come into contact with each other
• It is preferable not to place the valve close to a wall to prevent contamination
• To limit the resistance, we recommend that you use only valves equal to or larger
than size ø125 mm
• Maximum extractor flow rate per valve: 75 m
• Maximum supply flow rate per valve: 50 m
Choose air ducts
When choosing the right ducts, the flow rate and maximum air speed are decisive in
order not to generate additional noise pollution and a pressure drop (see table).
Ensure that the total pressure loss is as low as possible (target ≤ 100 Pa) and the air
speed in each duct is lower than 3 m/s.
Select air ducts
Desired flow rate (m
0 - 30
30 - 150
150 - 350
350 - 450
400 - 500
6.3 Constant volume control
Due to the built-in anemometer in the ventilator housing, the set air volume is always
achieved to an accuracy of 1%. As a result, you are always assured that the set air volume
is at the maximum efficiency, despite obstructions in the airflow caused by things
such as contaminated filters or channels.
3
/ h) Recommended minimum duct diameter (mm)
>100
>125
>150
>180
2x 180mm (use side and top connection)
3
/h
3
/h
index
27