Installation of Bypass Humidifiers

Sometimes contractors ask us where to mount the new bypass humidifiers from Honeywell.

The new Honeywell bypass humidifiers can be mounted on either the supply duct or the return duct. 

When the humidifier is mounted on the supply duct, the 6 inch bypass duct is connected to the return duct.

When the humidifier is mounted on the return duct, the 6 inch bypass duct is connected to the supply duct.

 

Either way you have the unit mounted, the airflow will always be from the supply (warm air or high pressure) to the return duct (cool air or low pressure).

 

Jackson Systems believes that you will have a slightly higher operating efficiency when the bypass humidifier is mounted on the supply duct and having the 6 inch bypass duct connected to the return; therefore we recommend mounting the humidifier on the supply duct whenever possible.

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