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- The AprilAire Model 620 Bypass Evaporative Humidifier delivers maximum moisture output with superior water efficiency for ducted HVAC systems. When the humidifier control signals that humidity is low, water and air flow into the HydroCore where natural evaporation occurs. Increased output and water conservation are realized with water recirculation technology. The humidifier adds humidified air to the return duct, where the HVAC system can distribute humidity throughout the home. The Model 620 utilizes water for both evaporation and the removal of solids left behind during the evaporation process.
- HydroCoreTM Technology recirculates water to maximize panel saturation with a 55% reduction in wastewater
- One-piece HydroCore simplifies annual maintenance
- Highest capacity AprilAire bypass evaporative humidifier
- Reconfigurable bypass for right or left discharge allows for increased installation options on the supply or return duct
- New adjustable damper positions accommodate installation on high pressure systems
- Fast and easy installation for every application with +/- 3 degree level tolerance
- Designed for tightly constructed homes up to 5,300 ft2 total
- Model 4655 (620M) Manual Humidistat
- Capacity18 GPD (0.75 GPH)Dimensions14-1/2 W x 18 H x 11 in DManufacturerAprilaireManufacturer #620MMounting TypeAir DuctSeries620SpecificationsManual HumidistatTypeBypassVoltage Rating24 VWeight7 lb