COMPACT AHU WITH HEAT RECOVERY EVO-T +
OPERATION AND MAINTENANCE MANUAL
84
9. AHU OPERATION
9.1 Turning the unit on and o
The unit is operated via the control panel.
See description in section 9 “CONTROL OF
THE COMPACT AIR CONDITIONING UNIT
EVO-T+”.
9.2 Service tasks
Servicing of the unit is carried out at the time of lters re-
placement. The following should be checked:
• Condition of fan rotor bearing (the rotor should freely
rotate around its axis – without any knocking or run-out)
• Blow out any visible dust and contamination from sur
-
face of the exchanger ns
• Clean drip tray (using warm water with antiscaling de
-
tergent)
• Check the ow capacity of the drip drainage system and
siphon priming.
9.3 Filter replacement
Order of operations:
1. Disconnect the power supply to the air handling unit,
open the inspection cover and remove the used lters.
Remove the inspection cover once the
fans stop.
2. Install new lters and secure the air supply and exhaust
lter, not to let it fall o.
3. Replace the inspection cover.
4. After replacing the lters, reset the timer in – „SETTINGS/
FILTERS/Change lters for”.
Fig. 9 Method of lter replacement.
Notes:
1. The recommended lter replacement period is approx-
imately 3 months, depending on the operating environ-
ment.
2. The lters should be replaced by persons who are not
allergic to dust.
3. Before removing the lter cartridge, it is advisable to pre-
pare sealed packaging for removal to the municipal waste
collection area and for disposal.
9.4 Changing the supply air lter to an ePM1 60% ne lter.
1. To change the Coarse 80% class lter to the ePM1 60%
class lter it is necessary to move the lter guides by 25
mm.
2. Provide the lter and the interface of the lter to the
housing with a gasket.
3. Then insert the lter.
4. The lter ePM1 60% is available on request.
Fig. 10 Change of Coarse 80% supply air lter to ne dust lter ePM1 60%.
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