9 Servicing
KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units
SMGB0099 rev.0 - 12/2016
337
9
5  Draw out the air lters (2 pieces) which are located at the bottom of the heat exchanger elements.
9.11.6  Removal of the oat switch (X4E series only)
1  Remove the 4 screw from the service cover (a) situated 
closed the SA duct connector and remove the service 
cover.
2  Float switch is on the bottom left side, close de service 
window.
3  Unscrew the nut on the oat switch and remove from its 
bracket.
4  Unplug the connector that is inside the protection cap 
and take out the oat switch.