DEH3000 Digital Dehumidifier Control 24 Volt Wall Interface UA-4028539

The DEH3000 Digital Dehumidifier Control 24 Volt Wall Interface (UA-4028539) provides precise humidity management for Therma-Stor and Ultra-Aire dehumidifiers using a low-voltage 24-volt control circuit. The controller measures approximately 4.7 inches high × 3 inches wide × 1.1 inches deep and mounts to a standard 2×4 wall box. It features an onboard RH sensor, digital display, adjustable humidity setpoints, and terminals for dehumidifier demand, fan control, and ventilation interlock depending on model. Designed for whole-home dehumidifiers operating across 200–400 CFM airflow ranges, the DEH3000 ensures tight humidity regulation, prevents over-drying, and integrates cleanly with dedicated ventilation or HVAC blower operation. Technicians benefit from straightforward wiring, accurate sensing, and OEM-approved control logic for Ultra-Aire and Santa Fe systems.