Aprilaire 63 Modulating Control

The Aprilaire 63 Modulating Control is an advanced automatic digital modulating control package specifically engineered for the Aprilaire 801 steam humidifier. This precision kit uses a microcomputer-based design to deliver responsive humidity control, ensuring the indoor environment maintains an ideal moisture balance. By providing a 0–10Vdc or 2–10Vdc modulating output, the system adjusts the humidifier's intensity proportionally as the space approaches the desired set point, preventing the overshooting common in standard on/off systems. The Aprilaire 63 ADMC package includes a wall-mounted digital humidistat, an outdoor temperature sensor for automatic condensation prevention, a duct humidity sensor for high-limit protection, and a blower activation relay. Together, these components allow the humidifier to operate even when the HVAC system is not actively heating or cooling. With a clear LCD backlit display and lockable menus, managing whole-home humidification has never been more accurate or effortless for residential applications.

Key Benefits:

• Precise Proportional Control: Modulates steam output with a 0-10Vdc signal to match the exact moisture needs of your home.
• Automatic Temperature Compensation: The outdoor sensor automatically resets humidity levels to prevent window frost and structural moisture damage.
• Blower Synchronization: The included relay ensures the HVAC fan runs during a call for humidity, maximizing steam distribution efficiency.
• Versatile Duct Sensing: The secondary sensor can act as a primary controller or a high-limit safety override to protect ductwork from condensation.
• Clear Digital Interface: A large, backlit display provides real-time status indicators for both humidification and dehumidification.

Common Questions:

• Can this control be used with any humidifier? No, the Aprilaire 63 is specifically designed as the recommended control for the Aprilaire Model 801 Steam Humidifier.
• Does it help prevent mold in the ducts? Yes, the duct humidity sensor acts as a high-limit override to shut down the unit if moisture levels in the plenum become too high.
• Is the outdoor sensor required? While the unit can run in manual mode, the outdoor sensor is highly recommended to enable automatic adjustments that protect your windows from condensation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

This item is not eligible for free shipping.