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15
KOMFORT EC SKE270-1.5
3. Heat exchanger maintenance (once per year).
The heat exchanger must be regularly cleaned to maintain high heat
recovery efficiency even in case of the regular filter cleaning.
To remove the heat exchanger:
Make sure the unit is disconnected from power mains.
QF
Remove the screws.
Open the unit front panel and disconnect the control panel. After that
remove the two M6 screws to release the stopper. Lean the service panel
against the unit and lift it upwards to remove.
Remove the heat exchanger from the unit and flush it with warm
detergent solution. Install the dry heat exchanger back to the unit.
Perform the actions in the reverse order after completion of the maintenance.
4. Fan maintenance (once per year).
The regular filter cleaning may not completely prevent the dust ingress
into the unit, which results in the unit capacity decrease. Clean the fan with a
soft cloth or a brush. Cleaning with water, abrasive detergents, sharp object or
chemicals is not allowed.
5. Condensate drain system maintenance (once per year).
Extract air particles may accumulate in the condensate drain system and
cause its clogging. Pour a drain pan under the unit with water to check free
water flow. Clean a U-trap and the drain system if required.
6. Supply air flow control (twice per year).
Check the supply grille and remove foreign objects to maintain free air
intake.
7. Air ducts maintenance (once in 5 years).
The regular unit maintenance in compliance with the above rules may
not completely prevent dust ingress into the air ducts which may result in
air flow decrease. The air duct maintenance consist in periodical cleaning or
replacement.
8. Exhaust grilles and intake diffuser maintenance (as required).
Remove the exhaust grille and the intake diffuser and flush those with
warm detergent solution. Check the air ducts for air tightness periodically.
9. Control unit maintenance (as required).
WARNING!
The control unit maintenance must be performed by a
qualified technician, duly authorized for unassisted operations at the electrical
units up to 1000V after careful reading of the operation manual.
Control unit maintenance as follows:
Make sure the unit is disconnected from power mains.
QF
Remove the screws.
Open the unit front panel and disconnect the control panel. After that
remove the two M6 screws to release the stopper. Lean the service panel
against the unit and lift it upwards to remove.
KOMFORT_EC_SKE270_v2(4)_EN.indd 15
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