The Carrier HK50AA047 is a specialized RTU-Open controller designed for seamless integration within Carrier i-Vu Control Systems. This native BACnet controller provides high-level demand controlled ventilation and comprehensive management for light commercial rooftop units. Engineered to interface directly with the Carrier Comfort Network (CCN) or standalone BACnet MS/TP networks, the board allows for precise HVAC zone control and energy optimization. This OEM Carrier replacement board ensures full RTU-Open compatibility, featuring 11 digital/analog inputs and 9 outputs for monitoring temperature, humidity, and CO2 levels. Technicians should utilize this board to maintain building automation system integrity, ensuring the RTU sequence of operations remains within factory parameters. Its plug-and-play architecture minimizes commissioning time while providing robust diagnostics for troubleshooting commercial HVAC maintenance cycles. This board is essential for maintaining ASHRAE 62.1 compliance through accurate outdoor air CFM monitoring and indoor air quality management.

Key Benefits for Technicians

• BACnet MS/TP Integration: Provides native protocol support for seamless communication with Building Management Systems (BMS) without requiring additional gateways.
• Advanced Diagnostics: On-board LEDs and software points allow for rapid HVAC troubleshooting of compressor stages, economizer positions, and fan status.
• Precision Control: Supports demand controlled ventilation (DCV) strategies to reduce energy consumption while maintaining superior indoor air quality.
• OEM Reliability: Ensures exact fit and function for specific Carrier, Bryant, and Carlyle rooftop units, maintaining original performance specifications.

Common Questions

What communication protocols does the Carrier HK50AA047 support?

This controller is a native BACnet MS/TP device and is also compatible with Carrier Comfort Network (CCN) protocols, allowing for flexible integration into various building automation environments.

Can this board be used for demand controlled ventilation?

Yes, the Carrier HK50AA047 RTU-Open board features dedicated inputs for CO2 sensors, enabling demand controlled ventilation to adjust outdoor air intake based on actual occupancy levels.

Is specialized software required for commissioning this RTU controller?

While the board can operate as a standalone unit, utilizing Carrier i-Vu or the Field Assistant tool is recommended for custom configuration, viewing HVAC system diagnostics, and setting specific operational parameters.

CONTROL BOARD, RTU-OPEN

Notes

Item is Non Cancelable / Non Returnable

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.