ECA 150 ipro H, ECA 150 ipro KH

• H, KH variants with humidity control (automatic), start delay and run-on time. Operation possible with optional light switch. Light on: Operating programme starts with priority over automatic humidity control. Light out: Fan continues to run for remaining run-on time. Room humidity monitoring during operation in level 1 or 2. Operating programmes when using an additional switch.

Function of the automatic humidity control

Once the fan is installed, it adjusts to the room humidity prevailing at that time (relative humidity). This humidity value is saved as the first reference value. The reference value does not have to be specified manually.

If the relative humidity falls below the reference value during operation, the newly established reference value is saved. The lowest possible reference value is 48 % relative humidity.

When the room humidity increases

• If the room humidity increases by 7%, the fan switches on automatically at power level 1 (200 m³/h).
• If the humidity continues to rise, the fan switches to power level 2 (250 m³/h).
• If there is no further increase, the fan continues to run at power level 1 (200 m³/h) until the humidity falls below the stored reference value again.

When falling below the reference value

• H and KH: Run-on operation starts with the set run-on time. The current reference value is then saved.
• RCH and KRCH: No run-on operation.

Value does not fall below reference value for 1 hour

• H and KH: Run-on operation starts. Fan then switches off.
• RCH and KRCH: Fan switches off.

Operation using light and/or radio switch

• H and KH units can also be operated using the light switch. With “Light on”, the set operating programme starts with the start delay → Operating programs The operating programme takes priority over the automatic humidity control. After switching off, the unit continues to run until the remaining run-on time has passed. The automatic humidity control is then assigned maximum priority again and controls the unit as described above.
• Optionally, RCH/KRCH units can be operated in 2 levels using a radio switch. During humidity operating mode, switching with DS RC or radio window contact is possible.