Automatic Mode, Refer to Operation Guide | Aprilaire 800 instruction

Automatic Mode

Figure 2 – Automatic Mode

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Your Aprilaire Humidifier Control is installed in the cold air return duct. During the first heating season, your Humidifier Control needs to be set initially to match your home’s condition. Please follow these steps when adjusting your control (refer to Figure 2).

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 TABLE 4 – Operation Guide..

2.During the coldest portion of the first heating season, minor adjustments may be necessary. This is dependent upon your home’s construction.

Refer to TABLE 4 – Operation Guide..

The humidity in your home will now be accurately controlled to meet your needs and should not need further adjustment during future heating seasons. Make note of the dial setting in the event you temporarily move the knob to “OFF” when performing annual maintenance of your Aprilaire humidifier.

Manual Mode

Figure 3 – Manual Mode

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When installed in the Manual Mode (see Figure 3 – internal switch in “MAN” position and “M” in the display), 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 the correct setting will be 35%. If the temperature is expected to fall to 0°F that evening, then merely reduce the setting to 25% several hours prior to the temperature change.

See Table 2 for the recommended settings. These settings, which are based on years of research, represent a compromise between humidity levels that would be most desirable for comfort and humidity levels that are suitable for protection of your home and to avoid condensation on your windows. For example, a wintertime indoor humidity of 50% may be considered ideal for comfort, but unfortunately, it probably would result in condensation, which can cause damage to your home. Observing the recommended humidity levels on your Humidifier Control is an important safeguard. Condensation of water on the inside surface of windows in the form of fogging or frost is usually an indication of too much humidity. This same condensation can occur in other areas in your home, possibly resulting in damage.

Table 2 – Outdoor Temperature/Indoor Relative Humidity

Outside Temperature	Recommended RH
+40°F	45%
+30°F	40%
+20°F	35%
+10°F	30%
0°F	25%
– 10°F	20%
– 20°F	15%

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800 specifications

The Aprilaire 800, a highly efficient whole-home humidifier, is designed to enhance indoor air quality and comfort. As part of Aprilaire's renowned line of whole-home products, this system excels in maintaining optimal humidity levels, mitigating health issues related to dry air, and protecting the integrity of your home.

One of the standout features of the Aprilaire 800 is its impressive capacity to deliver significant moisture output—up to 18 gallons per day. This output is ideal for larger homes, ensuring that every room receives adequate humidity. The unit is particularly effective in combating the adverse effects of dry air during winter months when indoor heating can lead to discomfort and increased susceptibility to respiratory issues.

The Aprilaire 800 employs advanced technology, specifically the use of a self-regulating humidifier design that operates independently of your heating system. This means it can maintain humidity levels even when the furnace is not in use. The unit showcases a built-in digital control, allowing homeowners to set and monitor humidity levels easily. The device can also integrate seamlessly with most HVAC systems, enhancing its versatility.

Another notable characteristic of the Aprilaire 800 is its unique water panel design. The patented self-cleaning feature helps reduce mineral buildup, ensuring optimal performance and longevity. This means that maintenance is simplified, requiring minimal intervention to keep the unit functioning at peak efficiency.

Furthermore, the unit can be connected to a water line for continuous operation, eliminating the need for manual refills. This feature not only adds convenience but also ensures a consistent supply of moisture throughout your home.

Energy efficiency is a key consideration in the design of the Aprilaire 800. Its operation is tailored to minimize energy consumption while maximizing moisture output, making it an environmentally friendly choice for maintaining indoor comfort.

In summary, the Aprilaire 800 whole-home humidifier combines high capacity, advanced technology, ease of use, and energy efficiency. It is an ideal solution for homeowners looking to improve their indoor air quality, comfort, and overall well-being during dry seasons. Whether you are dealing with dry skin, respiratory issues, or damage to wooden furniture, the Aprilaire 800 can be a valuable addition to your home.