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Step 1
Be sure unit is full of water and plugged
in.
Step 2
Set the Speed Control to LOW ( ).
Step 3
Set Humidity Control to a medium posi-
tion (see diagram below)
NOTE: Humidifier should operate with
humidity control on the recommended
medium setting. If it does not, the humidi-
ty is at a relatively high level. To test the
unit under this condition, turn Humidity
Control all the way to clockwise and unit
should begin to operate. After the unit
has been tested, set Humidity Control to
medium or desired level.
Allow 24 hours for humidifier to adjust.
If humidity level in home is sufficient, the
humidifier will only operate with Humidity
Control set on maximum.
IMPORTANT: Water damage may result
if condensation starts to form on win-
dows or walls. Humidity Control setting
should be lowered until condensation
no longer forms.
Step 4
If humidifier stops running and the amber
Refill Light is not illuminated, the humidity
level is at the normal requirements for that
setting or it is adjusting to the home con-
ditions. The table below shows recom-
mended indoor humidity levels. The figure
below shows approximate relative humidi-
ty percentages which correspond to the
various settings of the Humidity Control.
Using Your Humidifier
Operating Tips for Best Performance
1. Position the humidifier next to an
inside wall at least 2 inches from the
wall and away from any heat
registers.
2. Do not restrict airflow from entering or
exiting the humidifier.
3. Use EPA approved bacteriostat (avail-
able at your local retail store) to retard
bacteria growth that may cause odors
and may be harmful to your health.
4. Regular cleaning as instructed in
“Cleaning Your Humidifier” section of
this manual is recommended.
5. Replace the evaporative wicking filter
at least once per humidification
season or more depending on water
conditions in your area.
MAX
MIN
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Relative Humidity
8
-10° F
2° F
10° F
20° F*
-24° C
-18° C
-12° C
-6° C*
20%
25%
30%
35%
When Outdoor Recommended Indoor
Temperature is: Relative Humidity is:
* and above
SP6549 Manual 71235 7/12/05 3:17 PM Page 8