Filters - Lennox FLEXY II Series Installation, Operating And Maintenance

VENTILATION : FILTERS
F
ILTER REPLACEMEN T
After opening the f ilter access panel, lift the filter retaining log.
The f ilters can then be remov ed and replaced easily by sliding the dirty filters out and clean ones in.
The CLIMATIC controller can monitor the pressure drop across the filter (If option fitted)
The f ollowing set points can be adjusted depeding on the installation.
"Airf low"
"No f ilter "
"Dirty Filter"
The actual pressure drop measured accross the coil can be read on the Climatic Display DS50 in menu 2131
The f ollowing faults may be identif ied
-Fault code 0001 AIRFLOW FAILURE, if measured ΔP across the f ilter and coil is below the v alue set in page 3411
-Fault code 0004 DIRTY FILTERS, if measured ΔP across the f ilter and coil is abov e the v alue set in page 3413
-Fault code 0005 MISSING FILTERS, if measured ΔP across the f ilter and coil is below the v alue set in page 3412
Be Careful: do the filters' fire classification's choice according to
IOM – FLEXY II – 1007 – E
in page 3411 = 25Pa by default
in page 3412 = 50Pa by default
in page 3413 = 250Pa by default
the local regulations
.
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