Filters - Lennox ROOFTOP FLEXY FCA Series Installation Operating & Maintenance Manual

filters

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The CLIMATIC™ controls the filters. Two types of problems
may occur :
1 - 004 error code (lit LED "filter") or the following icon (for a
graphics screen - KP07) :
Item 8 on KP 17 indicates that the filters must be changed.
The unit has not stopped but the airflow is likely to be reduced
due to increased pressure drop acros the filters.
2 - 005 error code or the following icon
(for a graphics screen - KP07) :
Item 9 on KP17 indicates that the filters are out of position :
either they have been damaged or not been replaced during
maintenance. In the latter case, the unit has not stopped but
the increased flowrate may result in the motor overheating. It
is important to check the filter immediately.
FILTER REPLACEMENT :
After opening the filter access panel, unscrew the butterfly
nuts maintaining the filter support and remove it (figure 18).
Remove the cells that are slide-mounted (figure 19).
Use the rod in the lower filter section to remove the cells at
the botton of the sliders.
Install new filters inside the sliders.
Figure 18
KP 17 DISPLAY
Figure 19
IOM / ROOF-TOP FLEXY™ Series - Page 25
Figure 17