nilan Compact P, User Manual

Page: 16 / 48

16
Annual maintenance
General cleaning
The ventilation unit should be cleaned on the inside once a year. Dust can slip through the filters and mix with dampness from the ex -
tract air.
You may want to remove dust with a vacuum cleaner before wiping the ventilation unit inside. For this, use a slightly damp cloth with
a mild soap solution. Be careful around potentially sharp edges. Be careful not to get water into the electrical control system.
The ventilation unit should also be cleaned on the outside using a slightly damp cloth and a mild soap solution.
The ceiling valves
Over time a ring may develop round the inlet valves. This is a natural process and is due to dust in the
room air, not to defective filters or failure to change filters.
As very few painted ceilings are washable, you are recommended to vacuum round the valve and then
wipe the area with a damp cloth.
It is a good idea to dismantle and clean the valves when necessary. The valves have been set by the
installer for a specific airflow, so it is important not to rotate them, as this will change the setting and
unbalance the ventilation system.
Water trap
When the ventilation unit in cold periods runs with high heat recovery, condensation of the exhaust air takes place. It is important tha
there is free drainage form the condensate tray so that the water can drain out. If not, it will at some point run out of the unit door and
cause major water damage.
Procedure:
1. Pour water into the condensate tray
2. Close the ventilation unit door
3. Switch on the ventilation unit and let it run for 10 min.
4. Open the door of the ventilation unit and check that the water has run out and not back into the condensate tray
5. If the water has run out everything is ok
6. If the water has not run out, check the water strap and the entire drain for where it has stopped
Heat exchanger
The counterflow heat exchanger is a central part of the ventilation unit. It heats up the cold outdoor air with energy from the warm
extract air. To maintain a high level of heat recovery, it is important that the heat exchanger is not clogged with dirt.
Experience indicates that it should not be necessary to lift out and clean the heat exchanger every year. However, if it appears to be
dirty, you should lift it out and clean it.
The easiest way to clean the counterflow heat exchanger is in the shower. Use lukewarm water and rinse it well from both sides. Allow
it to drip off before remounting it in the ventilation unit.
WARNING
Stop the ventilation unit on the control panel and switch off the power supply for the unit before opening its front door.
ATTENTION
Iff the cooling function is deactivated, check your condensate drain every autumn befor the cold sets in.
(Condensation typically takes place at an outdoor temperature < 10 °C)