OPERATING INSTRUCTIONS
Your EnviroAire IAQ humidifier is controlled by a Manual
Humidifier Control (see
Figure C
). The Manual Humidifier
Control is installed either in the cold air return duct or on
an interior wall of the home. With the Manual Humidifier
Control, it is important to anticipate a drop in outdoor
temperature and reduce the setting accordingly to avoid
excessive condensation, just as with the Digital Humidifier
Control installed in Manual Mode.
To determine the indoor RH, slowly turn the knob clockwise
and counterclockwise and listen for 2 clicks. The indoor RH
is within the range of the 2 clicks.
CHECK HUMIDIFIER OPERATION
Set the knob to “Test/Reset”, make sure that the water saddle
valve is open and that there is electricity to the humidifier.
The HVAC fan must be running for the humidifier to function.
Note: Turning the knob to “Test/Reset” resets the “Change
Water Panel” timer. The humidifier will only operate for 1
minute in test mode. Reduce the Humidifier Control setting
to the recommended inside RH, depending on the outside
temperature.
DO NOT LEAVE IN TEST MODE AS
HUMIDIFIER WILL NOT OPERATE.
DIGITAL HUMIDIFIER CONTROL
Set the knob to the highest setting, make sure that the
water saddle valve is open and that there is electricity to
the humidifier. The HVAC system must be operating for the
humidifier to function. Confirm that the solenoid valve is
energized and water is flowing into the humidifier. Return
control knob to desired setting.
MANUAL HUMIDIFIER CONTROL
ADDITIONAL INFORMATION
Be sure to keep fireplace dampers closed when not in use.
They provide an excellent escape route for heat, as well as
humidity.
On occasion, indoor moisture producing activities such as
clothes drying, cooking, showers, etc., may raise the RH
level higher than it should be, even though the EnviroAire
IAQ humidifier is not operating. Telltale indications are
condensation or frost on cold surfaces such as windows,
doors, walls, etc. If such condensation persists for several
hours, your home should be ventilated to dissipate the
potentially damaging excess moisture.
EFFECT OF WATER CHARACTERISTICS
Your humidifier is designed to operate using hot, cold, hard
or mechanically softened water.
Water contains varying amounts of minerals. The residue
remaining as a result of hard water evaporation is primarily
calcium and magnesium components and is usually quite
hard, scaly, and dense. Residue from softened water tends to
be soft and fluffy and has a greater volume than hard water
deposits. In either case, the service life of a Water Panel
evaporator will be the same. The Water Panel evaporator
should be changed at least once a year. In the drain-
equipped models, most of the mineral solids are flushed
down the drain.
Hot supply water, 140°F maximum, is recommended with
drain type humidifiers for increasing capacity and is required
for heat pump and air handler applications.
WARNING
RISK OF SCALDING.
Water temperature over 125˚F
can cause severe burns and scald instantly. Shut off the
hot water supply before disconnecting or tapping into
any hot water supply line.
ANNUAL MAINTENANCE
For best performance, we recommend that you replace the
Water Panel evaporator in your EnviroAire IAQ humidifier
at least annually.
The “Change Water Panel” indicator light (Digital Control
only) will blink when it is time to change your Water Panel.
• Call the installer of your EnviroAire IAQ humidifier. This
contact information is often found on your equipment.
• Call your heating and air conditioning dealer.
