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Fitting and maintenance instructions HRC 300/400 4B(P/RH)
3.8 Overview connection HRC
The HRC can be configured either as a standard or a mirrored
unit. As a standard unit, the duct connections on the left side
of the unit will go outside and the duct connections at the right
side go to the dwelling. The turn-module will show a “tree” on
the left and a “house” on the right side.
Figure 8: Turn-module
If the unit is to be configured as a mirrored unit, you can pull
the turn-module out of the unit and turn it 180° (reverse side
to the front) and insert it b ack into position. You will see that
now the “tree” is on the right side and the “house” on the left
side. The connections at the unit have now changed. The
connections on the left side now lead to the dwelling and the
connections on the right side lead outside.
Figure 9: Turn-module (detail)
The top connection is always the suction side (suction from
outside or from the dwelling) and the bottom connections are the
pressing connections (exhaust to outside or inlet to the dwelling).
The magnets on the turn-module are used to configure the unit
for left or right-handed operation and must not be changed or
removed after the initial set up.
Attention!
Keep the magnet away from creditcards and other
objects sensitive to magnetic fields.
3.9 Adjusting the air performance
The HRC is provided with constant volume fans.
The integrated electronics controls the speed of each ventilator,
to keep the airflow equal conform the settings of the dipswitches
independent of the resistance of the system. For this reason
the speed of both fans will not always be equal, because the
resistance of the inlet and exhaust system will not always
will be equal.
By means of the dip switches on motor-pcb’s at both sides of
the unit, you can easily change the airflow of the highest speed.
To change the airflow of the ventilator follow instructions
below:
1.
Remove the cover from the unit.
2.
The dip switches on the motor-pcb’s on both sides of the unit
are now accessible
3.
Set the dip switches on both pcb’s to the desired airflow after
checking the setting on the drawing below.
4.
Refit the cover and make sure that the filters in the unit are
clean.
5.
Restart the unit.
Important:
Before removing the cover you must disconnect the
electrical power to the unit.
