Carrier Humidifier - Manual Humidifier Control

Tocheckthe humidifier'soperation,notethe current setting
andset the HumidiTradMControlto the Testmodewhen the furnace
blower motoris operating.Water will flow into the humidifierfor
1minuteandthen it will turn off. Thisinsuresthe humidifieris
operatingproperly.Donot leavethe control in the test modeas it
wilt not operate.Resetthe control to it's original setting.
Note:Turningthe knobto "Test" resetsthe HumidifierPadChange
Indicatortimer.
Manual HumidifierControlor HumidiTracTM in Manual Mode:
(for Automatic Humidifier Control- see page 6)
Yourhumidifier is controlled by a humidifier control installed either
in the living area (typically near the thermostat) or in the cold air return.
It is important to anticipate a drop in outdoor temperature and reduce
the setting accordingly to avoid excessive condensation. For example,
with an outdoor temperature of 20°F(-7%) the correct setting will be
35% relative humidity_Ifthe temperature is expected to fall to O°F
(-t8%) that evening,then merely reduce the setting to 25%several
hours prior to the temperature change.
The recommended settings onthe humidifier control are based on
years of research (see Table3) and experience asto what is best for
the average home.These settings represent a compromise between RH
levels that would be most desirable for comfort reasons and humidity
levels that are suitable for protection of your home.Forexample, a
wintertime indoor RHof 50%may be considered ideal by some, but
unfortunately, it probably would result in damageto your home.
Observanceof the recommended RHlevels on your humidifier control,
therefore, is an important safeguard. Condensation of water on inside
windows in the form of fogging or frost is usually an indication that the
relative humidity is too high_This same condensation can take place in
other areas in your home with the possibility of damage resulting.
+40°F(4%)
+30°F(-1°C)
+20°F(-7°C)
+10OF(-12°C)
O°F(-18°C)
-tOOF (-23%)
-20OF(-29°C)
45%
4O%
35%
30%
25%
20%
15%
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