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6.3. Resetting dirt filter indication
When you have cleaned or replaced the filter, you can reset
the dirt filter indicator:
●
For the reset,
first
disconnect the ventilation unit by removing
the plug from the wall socket, wait 15 seconds and then
reconnect the unit by plugging it back into the wall socket.
You then have 10 minutes to reset the filter indication as shown
below.
For the ventilation unit with an earthed plug:
●
Wireless control switch: Simultaneously press two adjacent
buttons on the control switch.
●
Wireless
CO2 sensor
or RH sensor: When the status LED
flashes orange, first activate the sensor by pressing the touch
button for 5 seconds. Then press the touch button between 5
and 7 seconds until the orange flashing stops and the status
LED flashes green 3 times briefly.
●
Spider Climate Thermostat: When the Spider Climate
Thermostat is activated, the message
Replace filter
appears.
The orange filter symbol and the
Service
button light up
continuously. Within 10 minutes of activating the Spider
Climate Thermostat, press and hold the
Service button
(approx. 5 seconds) until the message
Replace filter
disappears.
For the ventilation unit with a Perilex plug:
●
Wired switch: Turn the wired control switch 4 times to another
position, each time with a 6-second interval.
●
Wireless control switch: Simultaneously press two adjacent
buttons on the control switch.
●
Wireless
CO2 sensor
or RH sensor: When the status LED
flashes orange, first activate the sensor by pressing the touch
button for 5 seconds. Then press the touch button between 5
and 7 seconds until the orange flashing stops and the status
LED flashes green 3 times briefly.
●
Spider Climate Thermostat: When the Spider Climate
Thermostat is activated, the message
Replace filter
appears.
The orange filter symbol and the
Service
button light up
continuously. Within 10 minutes of activating the Spider
Climate Thermostat, press and hold the
Service button
(approx. 5 seconds) until the message
Replace filter
disappears.
6.4. Cleaning mosquito filter
The mosquito filter must be cleaned once a year. This can be done
by the user himself.
a) Remove the plug from the wall socket or de-energize the
ventilation unit.
b) Remove the yellow cap on the top of the ventilation unit.
c) Then insert the hose of the hoover into the hole and turn the
hoover on. In this way, any mosquitoes and other contaminants
will be removed by the hoover.
d) Replace the yellow cap.
e) Put the HRU ECO 350 back into operation by plugging the
plug back into the wall socket.
6.5. Replace engine frost valve
The frost flap can be removed from the top of the unit without tools
and without further action.
a) With four fingers next to each other (the nail side), push open
the frost valve (into the unit). Make sure your thumb outside
the unit presses on the black foam (between the valve body
and the adjacent spout).
b) Now gently pull up the valve housing and at the same time
slide it horizontally towards the spout. The motor and other
bypass components are now accessible for inspection.
c) If necessary, the servomotor can now easily be replaced by
disconnecting the connector and unscrewing the two crosshead
screws.
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Warning!
The HRU ECO 350 must be fitted with the appropriate filters at all
times! Without filters, the unit can suffer irreparable damage.
