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Capacity is high because an average-size home (10,000 cu. ft.) requires
the addition of approximately 9 gallons of water per day to maintain 35%
relative humidity when the outside temperature is 20°. The smallest
Aprilaire Humidifier under most operating conditions, has this humidifying
capacity. Trouble-free performance and minimum maintenance are
assured by the design features of the Aprilaire Humidifier. All unit
housing parts that come in contact with water are non-metal and will
never rust or corrode. Neither heat nor water will affect them under
normal operating conditions.
The Water Panel
®
evaporator, designed especially for uniform, high
evaporation, and the Scale Control Insert efficiently traps mineral deposits
which are often the cause of damage to working parts in ordinary
humidifiers. No “white dust” can be distributed throughout the living
quarters. The Water Panel evaporator is the heart of the unit and must be
in good condition to assure high capacity trouble-free performance. It
should be changed once a year with the exception of the Model 400
which should be changed twice a heating season.
Older design water distribution trays have a granular coating in the
bottom of the distribution tray to provide even water flow to each of the
openings and over the Water Panel evaporator. Do not clean the
mineral scale off the bottom of the water distribution tray at the
end of the humidification season. If the granular coating is removed, it
is not necessary to purchase a new distribution tray, simply apply a small
amount of liquid dishwashing soap over the entire inside surface of the
water distribution tray. This will allow the water to flow evenly to the
water panel, provided the unit is level in order to achieve maximum
capacity.
The current distribution tray incorporates a synthetic fabric liner that
replaces the granular coating and is designed to deliver water uniformly
over the entire top surface of the Water Panel evaporator. It is normal for
some mineral deposits to form in the distribution tray as it dries out
between humidification cycles. These deposits can actually help distribute
water in the tray, but if they block the openings, they should be removed
as described in the “Periodic Preventative Maintenance” section of this
manual.
There are many humidifiers on the market. They all add moisture… with
varying degrees of efficiency. None, however, can provide the features,
design, and performance incorporated into your Aprilaire Humidifier.