S&P UVF ECOWATT Series Manual page 9

The microfi lters used in the UVF-ECOWATT boxes are high effi ciency fi lters that can not be
cleaned. Cleaning these fi lters can damage them and affect the degree of fi ltration.
Disassembly the prefi lter:
Rotate the lower stops with shape
triangular (a) holding the prefi lter.
22
To release the fi lter or fi lters, loosen the two threaded
knobs that hold each support (a), and move the arms un-
til leaving enough space to remove the fi lter or fi lters (b).
Release the prefi lter, making it slide by
the guides (2).
Remove used fi lters
and replace them with
the new ones, respec-
ting the sense date of
airfl ow found in the
frame.