AprilAire 4655 Manual Whole-House Duct or Wall Mounted Humidifier Control Humidistat for AprilAire Whole-House Humidifiers, Low Voltage 24VAC

AprilAire 4655 Manual Whole-House Duct or Wall Mounted Humidifier Control Humidistat for AprilAire Whole-House Humidifiers, Low Voltage 24VAC

• BUY WITH CONFIDENCE This genuine AprilAire humidistat was designed by AprilAire, the leader in indoor air quality solutions, to optimize the performance of your AprilAire Whole Home Humidifier
• CONVENIENT AND SIMPLE to adjust your home's Relative Humidity (RH) with a turn of the dial
• MAXIMIZE HEALTHY HUMIDITY in the 40-60% RH range which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites - feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
• DESIGNED FOR low voltage service (24VAC) to control humidification equipment
• TWO MOUNTING OPTIONS - choose Duct Mounting near your HVAC equipment, or Wall Mounting in your living space for even more ease and convenience when you need to adjust the RH level in your home
• HEALTHY AIR APP COMPATIBLE – Unlock the full potential of your AprilAire Whole-House Air Purifier with the AprilAire Healthy Air App! Download today to receive reminders when it's time to replace your air filter. Plus, dive into educational content to learn more about maintaining Indoor Air Quality in your home and contact your local Healthy Air Professional with ease. You can also access information on outdoor air quality in your area.

About the Aprilaire 4655 manual digital control humidistat Aprilaire has been providing top of the line humidifiers and humidistats for over 60 years now. The Aprilaire 4655 manual digital control humidistat is designed to be used with low voltage service to offer control of your humidification equipment, and is made to be used with the Aprilaire humidifier 4655 500. The Aprilaire manual humidistat is designed to be installed on the cold air return duct or on an interior wall in the living area of the home. To determine the relative humidity in the home, slowly turn the knob on the control clockwise and counterclockwise and listen for 2 clicks. The actual relative humidity in the home is between the 2 clicks. It is important to anticipate a drop in outdoor temperature and reduce the humidity setting in order to avoid excess condensation. The excess condensation occurs because the indoor relative humidity is higher than what the home can support for the current outdoor temperature. To adjust the humidity setting, simply rotate the control knob to the desired setting. Provided the HVAC system fan is operating and the humidification level is lower than the new set point, the manual humidistat will activate the humidifier.