36 - EN
6.8 How to remove the modulating bypass valve
1
2
3
1
2
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.
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.
6.9 How to change the location of the pre-heater
1
2
3
Access the main board as instructed
in the chapter “How to gain access to
the main board”
■
Disconnect the power to the unit;
■
Open the semi-transparent visor;
■
Remove the 3 front cover screws;
■
Remove the front cover;
■
Pull the cable tray cover forwards;
■
Remove any connected wire from
the ComfoConnect connectors;
■
Remove the 2 display cover screws;
■
Open the display cover.
Pull the pre-heater communication
and power cable form the main board.
Pull the pre-heater, including its cable
and grommet, from the unit.
4
180º
5
6
Rotate the pre-heater 180°.
Slide the pre-heater, including its
cable and grommet, back on the other
side of the unit:
■
When the orientation of the unit is
RIGHT the location of the pre-
heater should be on the left side;
■
When the orientation of the unit is
LEFT the location of the pre-heater
should be on the right side.
Check if the filters are in the correct
position:
■
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.
