Dehumidifier – ATMOX Plug-In Relay Kit 2.0

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ATMOX Plug-In Relay Kit 2.0

The Plug-In Relay Kit 2.0 for use with the ATMOX ACE 2.0 controls the operation of an optional dehumidifier. This kit connects to the ATMOX Controls through a low voltage wire to receive its signals.

The dehumidifier paired with the ATMOX Controls offers the best crawl space moisture control system. The ATMOX ACE 2.0 Controller will determine the best tool to reduce excess moisture at any given time. If ventilation is being used, most of the time you will be using outside fresh air pushed and pulled in with fans. In this setup, the dehumidifier acts as a back up for drying action when outside air is not available.

Additionally, if your crawl space is encapsulated, a dehumidifier can be controlled and enhanced by the ATMOX ACE 2.0 Controller. ATMOX will direct the operation of your dehumidifier to extend its life and avoid the unit freezing up. ATMOX also allows you to adjust the target humidity of the dehumidifier from the ATMOX display.

In addition, use of internal fans in the crawl space will improve the air flow to the drying unit. This will better dry all corners and areas of your space more evenly. You don’t want to dry out the area near the drying unit but neglect the other parts.

Energy Usage

The goal of an ATMOX moisture control setup up is to improve energy efficiency and air quality.  We believe moisture control systems should be effective as well as inexpensive to operate. However, dehumidifiers often have high energy usage. With use of the ACE Controller, it reduces the use of this unit when fans are better at drying. The relay kits allows the ACE Controller to determine which drying tool is best for the situation. As a result, there is less energy used. It also brings in some fresh outside air.

Powering the Relay Kit

This kit needs its own electrical outlet to power the dehumidifier. All required connectors are supplied with the ATMOX Relay Kit.

The relay kit is compatible with most brands of dehumidifiers. Contact ATMOX directly for any compatibility questions.

ATMOX is a reseller of Aprilaire and Santa Fe products.

Contact us for pricing or product information.


Power: This is a 15 amp relay. Power needs of selected dehumidifier should be reviewed prior to installation.

Use: Allows for a dehumidifier to be controlled by ATMOX controller.


ATMOX Dehumidifier Plug-in Relay Kit 2.0 Specification Sheet