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If the thermostat does not respond when a button is pushed it may be because the keypad has

been locked. A Lock icon “ “ will appear when pushing any buttons other than the buttons outlined above.

No. 3 – Normal Heat Pump/Add-on Heat Pump. This switch is factory preset (to the OFF position) to operate in the normal heat pump mode. If your heating and cooling system is an Add-on heat pump configuration, your contractor changed the position of this switch to match your equipment. Do not change the position of this switch as it could result in extraordinarily high operating costs.

No. 4 – This switch is not used and must remain in the OFF position.

No. 5 – Free LED 1 with LCD Filter Symbol. When moved to the ON position, this switch turns on a replace Filter icon on the LCD display screen when a 24-volt signal is sent to the LED 1 terminal. If your heat pump has the required controls for automatically determining when to change the air filter, this feature is beneficial. Consult your contractor for further information.

No. 6 – Free LED 2 with LCD Wrench Symbol. When moved to the ON position, this switch turns on a Wrench icon on the LCD display screen when a 24-volt signal is sent to the LED 2 terminal. If your heat pump has the required controls for automatically signaling when a particular problem exists, this feature is beneficial. Consult your contractor for further information.

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Aprilaire 8554 owner manual 110-792B 7/12/01 828 AM
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8554 specifications

The Aprilaire 8554 is a cutting-edge air purifier designed to enhance indoor air quality in residential and commercial environments. This innovative unit stands out for its ability to effectively reduce allergens, dust, pollen, pet dander, and other airborne contaminants, promoting a healthier living space for its users.

One of the main features of the Aprilaire 8554 is its advanced filtration system. It utilizes a MERV 13 filter, which is capable of capturing tiny particles measuring as small as 0.3 microns. This level of filtration ensures that not only common allergens are eliminated, but also less visible harmful pollutants, including smoke and certain bacteria. The strong filtration capability is a crucial characteristic for individuals with respiratory issues, allergies, or asthma.

Incorporated with cutting-edge technologies, the Aprilaire 8554 employs a unique air delivery system that ensures optimal airflow throughout the space. The system is designed to operate quietly and efficiently, minimizing noise disruption while maximizing air circulation. The unit's compact and slim design allows for easy installation in various settings, making it suitable for different types of homes and offices.

Furthermore, the Aprilaire 8554 is equipped with a user-friendly control panel. This intuitive interface allows users to easily monitor air quality levels and adjust the settings based on personal preferences. The unit also features a filter change indicator, alerting users when it’s time to replace the filter for continued optimal performance.

Another notable characteristic of the Aprilaire 8554 is its energy efficiency. Designed to operate on low energy consumption, it helps reduce utility bills while providing effective air purification. This eco-friendly approach aligns with the increasing demand for sustainable home solutions.

The combination of its advanced filtration capabilities, user-friendly technology, and energy-efficient design makes the Aprilaire 8554 an ideal choice for those seeking a reliable air purification solution. Whether for allergy relief, improved air quality, or overall wellness, the Aprilaire 8554 addresses the diverse needs of its users, creating a healthier indoor environment. This product is not just an investment in cleaner air, but a step towards a healthier lifestyle.
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