Aprilaire 8620 owner manual Automatic Mode

Models: 8620

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indoor air quality Functions

Humidity Control

Press [HUMIDITY CONTROL] on the Home screen to enter the Humidity Control screen..

The Humidity Control screen is used to access control for both humidification and dehumidification.

If humidification is installed it can be controlled in two modes, automatic or manual..

Automatic or manual mode is configured by the installer. To determine which mode the thermostat is set to, see the diagrams on pages 13 and 15..

In automatic mode you will receive the optimum amount of humidity so that your home and its furnishings are protected from the damaging effects of excess condensation or low humidity during heating season. The thermostat automatically adjusts your home’s Relative Humidity based on the outdoor temperature..

The humidity setting needs to be set initially to meet your home’s conditions. Please follow these steps when adjusting your thermostat.

1.Adjust the humidity setting to “3” which is within normal range.. During the next 24-48 hours it may be necessary to adjust the setting for more or less humidity, depending on your personal comfort and home’s requirements.

2..During the coldest portion of the first heating season, minor adjustments may be necessary. This is dependent upon your home’s construction..

The Relative Humidity in your home will now be accurately controlled to meet your needs and should not need further adjustment during future heating seasons.

indoor air quality Functions

Humidity Control (continued)

Humidity Control Screen for Humidification in Automatic Mode

Humidification Setpoint

Humidifier Adjustment

AUTOMATIC MODE:

Indication of HUMIDIFICATION

Setpoint Level

Done Button

(Exit Humidity Control)

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Aprilaire 8620 owner manual Automatic Mode