This document is the owner's manual for Aprilaire humidifiers, which includes safety and operating instructions, warranty information, and routine maintenance requirements. Aprilaire is a recognized leader in the heating and air conditioning industry and manufactures whole-house indoor air quality products. The manual also provides operating instructions and principles of operation for different models and different operation modes.
This document serves as the owner's manual for Aprilaire whole-house indoor air quality products, specifically Models 350 through 700. It details the evaporative principle of operation where water flows over a Water Panel evaporator to humidify air circulated by the furnace blower or service hot water.
The Aprilaire Automatic Humidifier maintains relative humidity to a maximum of 45% RH.
The Water Panel evaporator must be changed at least annually.