Fan
- Unpack unit and take off cover.
- To release the cover’s locking hook, unlock using a screwdriver.
![](../Images/png/72151435__Web.png)
- Fit supplied foam strip centred in socket.
![](../Images/png/73295883__Web.png)
It is imperative that the foam strip be fitted on the ECA 100 ipro RCH, so that the units do not draw in any unwanted air from outside.