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Using Your Humidifier
Step 1
Be sure unit is full of water and plugged in.
Step 2
Set air flow control to desired setting.
Step 3
Set Humidity Control to medium position
(half way between and )
NOTE: Humidifier should operate with humid-
ity control on the recommended medium set-
ting. If it does not, the humidity is at a rela-
tively high level. To test the unit under this
condition, turn Humidity Control all the way
clockwise and unit should begin to operate.
After the unit has been tested, set Humidity
Control to about medium or desired level.
Allow 24 to 48 hours for humidifier to adjust.
If humidity level in home is sufficient, the
humidifier will only operate with Humidity
Control turned all the way clockwise.
IMPORTANT: Water damage may result if
condensation starts to form on windows
or walls. Humidity Control setting should
be lowered until condensation no longer
forms.
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MAX
MIN
1. Position the humidifier at least 2 inches
from any wall and away from any heat reg-
isters.
2. Do not restrict airflow from entering or exit-
ing the humidifier.
3. Use liquid EPA Registered Bacteriostat 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 filters at
least once per humidification season or
more depending on water conditions in
your area.
Operating Tips for Best Performance
Relative Humidity
8
Step 4
If humidifier stops running and the amber Fill
Light is not illuminated, the green desired
humidity light will illuminate. This means the
humidity level is at the normal requirements
for that setting or it is adjusting to the home
conditions. The table below shows recom-
mended indoor humidity levels. The figure
below shows approximate relative humidity
percentages which correspond to the various
settings of the Humidity Control.
-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
SP6551 manual - 71238 7/12/05 1:56 PM Page 8