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7.3
How to clean NaviPad
Disconnect the NaviPad power cord. Wipe the NaviPad gently with a soft cloth. Remove resistant marks with mild de-
tergent (intended for touch screens) on the cloth, gently wipe the screen. Do not use other cleaning agents (they may
contain ammonia or other additives).
7.4
How to clean the heat exchanger
Caution
• Do not use detergent containing ammonia
• The heat exchanger is sensitive for impacts. Handle the heat exchanger carefully.
Clean the heat exchanger with hot soapy water. It is also possible to use pressure air, but not with too high pressure.
7.5
Control of the heat exchanger
The rotor bearings are permanently lubricated from factory and should not be re-greased.
Once a year verify that the exchanger rotates with ease
• Remove the driving belt and verify that the rotor can be moved by hand.
• Replace worn-out heat recovery sealing brushes.
Control the driving belt 4 times a year
• Shorten the driving belt if the tension is too low.
• Secure that the driving belt follows the tracks.
• Replace worn-out driving belt.
7.6
How to clean fans
Caution
• Do not use water.
Clean the fans with a cloth or a soft brush. Use white spirit to remove obstinate settlements. Allow drying properly. It is
possible to remove the fan for cleaning, figure 6.
1. Disconnect the fast coupling to the electric wire and the blue and red tubes from the supply air fan (standard units
with CAV)
2. Loosen the two bolts on the rail to remove the fan.
Fig. 6
3. Put the fan back in place and connect the electric wire and tubes.
4. Fasten the fan with the rail and bolts.
254051 | A001