Operating Instructions; Automatic Humidifier Control - Aprilaire 112 Owner's Manual

II. OPERATING INSTRUCTIONS
Automatic Humidifier Control: (Manual humidistat-see pg 5)
Your Automatic Humidifier Control is installed in the cold air return.
During the first heating season, your Automatic Humidifier Control
needs to be set initially to match your home's condition. Please
follow these steps when adjusting your control (refer to Figure A).
1.Turn the dial setting knob to "5," which is within the normal
range. During the next 24-48 hours it may be necessary to
adjust the dial for more or less humidity, depending on your
personal comfort and home's requirements. Refer to the
"Operation Guide" (Table 1).
2.During the coldest portion of the first heating season, minor
adjustments may be necessary. This is dependent upon
your individual home construction, refer to the "Operation
Guide" (Table 1).
Condition
Condensation on windows
Lack of humidity
Humidifier does not operate
Humidifier won't shut off
Test mode
The relative humidity in your
home will now be accurately
controlled to meet your needs
and should not need further
adjustment
heating seasons. Make note of
the dial setting in the event you
temporarily move the knob
when performing
maintenance of the Aprilaire
Humidifier.
(Table 1) Operation Guide
during future
annual
Solution
Reduce the setting on the control dial
by 1 increment.
Increase the setting on the control dial
by 1 increment.
Turn dial to "Test." Make certain furnace
blower is operating and furnace is calling
for heat. If unit still doesn't operate, consult
a heating contractor.
Turn dial to "Off. " If unit continues to
operate, consult a heating contractor.
System operation is checked by setting the
knob to "Test. " Make certain furnace blower
is operating and furnace is calling for heat.
Humidifier will operate for one minute.
(Figure A)
6
5
4
3
Humidity Level
- 3 -
7
Off
2
1