Aprilaire 8344 - Manual (Page 14)

9. Air Filter Change Indicator – Use this feature to remind the homeowner
when an air filter change is needed. Use the ADJUST – Up and ADJUST –
Down buttons to select the number of months between recommended
filter changes. Use 1 or 3 for panel type filters and 6 or 12 for extended
(pleated) media type filters. TABLE 1 lists general recommendations, refer
to manufacturer literature for recommendations on the filter in your
particular application. Set to 12 if the media is original Aprilaire High
Efficiency Air Cleaner media. Set the value to “OFF” to disable this
feature. Press the LIGHT button when the air filter indicator value has
been set. “DONE” will appear on the display and the thermostat will reset.
13
LIGHT
ADJUST
CHANGE FILTER CHANGE FILTER
LIGHT
ADJUST
WATER PANEL WATER PANEL
TABLE 1
FILTER TYPE CHANGE FREQUENCY THERMOSTAT SETTING
Disable the feature OFF
Disposable Panel 1 month 1
Washable Electrostatic 3 months 3
Extended Media (Aprilaire) 6-12 months 6 or 12