Aprilaire 500 Whole House 12-Gallon Automatic Humidifier, Compact

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The Aprilaire Model 500 Humidifier is economical and a proven performer designed for small to mid-sized homes. Features A built-in bypass damper, which means less parts to install Truly automatic control, but it can also be installed in manual mode Delivers optimum levels of humidity control with the Automatic Digital Humidifier Control. Provides vital service, temperature and relative humidity indicators in manual mode as well. Humidifies tightly constructed homes up to 3,000 square foot in size. Performs quietly with simple annual maintenance. Comes equipped with a drain to flush minerals from the unit. Incorporates easy right or left discharge change-over. Has an evaporation capacity of 0.50 gallons per hour. What's Included Installation instructions and template Humidifier with built-in bypass damper 24 VAC transformer Automatic digital humidifier control and outdoor temperature sensor Saddle valve Solenoid valve Water panel