Itho Daalderop HRU 400, Installation & Use Manual

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ä Attention
!
The filters can be cleaned once and must be replaced at the
next service.
6.2. Filter warning
On the device:
The control of the ventilation unit keeps track of when the filters
need to be cleaned or replaced. If a dirty filter is detected, it is
indicated by an LED (1) on the unit (the LED flashes orange).
6.3. Cleaning or replacing filters
Inspect and clean or replace the filters as follows:
a) Disconnect the ventilation unit from the power supply.
b) Open both service doors and take them away.
On the CO2 sensor / RH sensor
If the ventilation unit detects that the filter needs to be cleaned or
replaced, the unit sends a message to the controllable
CO2 sensor
,
and RH sensor (if connected). The status LED on the sensor will
then flash orange.
On the Spider climate thermostat
If the ventilation unit detects that the filter needs to be cleaned or
replaced, the unit sends a message to the Spider climate
thermostat. The message
Replace filter will appear on the
thermostat. The orange filter symbol flashes and the ventilation
symbol lights up continuously after the thermostat has been
activated. The
SERVICE button will also light up with this
message.
When you have cleaned or replaced the filters, reset the filter
warning. See the section Resetting the Filter Warning .
c) Remove the filters from the service area.
d) Inspect the service area and, if necessary, clean it with a
hoover. Here you can also clean the heat exchanger with a
hoover.
e) Visually inspect the filters for contamination. If the filters are
dirty, they should be cleaned or replaced.
f) Clean or replace the filters. Cleaning can be done by
carefully vacuuming the filters with a hoover.