34 - EN
EN - 35
6.6 How to gain access to the top-section sensor
1
2
3
Remove the heat exchanger as
instructed in the maintenance
instruction of the heat exchanger:
■
Open the semi-transparent visor;
■
Change the unit to SERVICE MODE;
■
Disconnect the power to the unit;
■
Remove the 3 screws of the front
cover;
■
Remove the front cover;
■
Pull the strap of the heat exchanger.
Remove the filters (and when present
the pre-heater).
During installation:
■
Make sure the arrow on the filters is
pointing upwards.
■
When the orientation of the unit is
RIGHT the location of the filters
should be:
= Left side;
= Right side.
■
When the orientation of the unit
is LEFT the location of the filters
should be:
= Left side;
= Right side.
Pull the sensor, from the inside of the
unit, down.
Then remove the sensor connector.
6.7 How to gain access to the mid-section sensor
1
1
2
2
3
Remove the modulating bypass valve
as instructed in the chapter “How to
remove the modulating bypass valve”:
■
Open the semi-transparent visor;
■
Change the unit to SERVICE MODE;
■
Disconnect the power to the unit;
■
Remove the 3 screws of the front
cover;
■
Remove the front cover;
■
Pull the strap of the heat exchanger.
■
Pull the clamp, located at the back
of the valve, away from the valve.
■
While holding the clamp away from
the valve pull the valve towards you.
Release the connection joint of the
modulating bypass valve.
Remove the insulation cover behind
the modulating bypass valve.
4
5
6
1
2
Remove the fan connectors from the
sensor cover.
Remove the sensor cover by opening
the snap connection.
During installation: Place the
sensor cover underneath the
guide rails and place the fan
connectors back. This will
guarantee a good fit of the
insulation cover.
Remove the connector for the sensor
Pull the sensor up out of its rubber
pressure sensor holder.
Then pull the sensor sideways and out
of the sensor compartment.
