Johnson Controls RAA-12-X Flow Probe Kit Round Damper 12 in

Product Description

The JOHNSON CONTROLS RAA-12-X is a center averaging flow probe kit designed for round air flow station applications. It measures airflow velocity by averaging multiple pressure readings across the duct cross-section, delivering consistent and repeatable readings without requiring an actuator or differential pressure transmitter. This kit fits 12-inch round damper configurations and supports a velocity range of 400 to 5,000 FPM with an accuracy of 5 percent. It is installed by HVAC technicians and controls contractors as part of air measurement and balancing systems in commercial and industrial mechanical applications.

This flow probe kit is suited for round duct and damper assemblies where airflow monitoring or control is required. Typical installations include air handling unit supply and return sections, outdoor air intake stations, and VAV system measurement points. The kit ships without an actuator and without a differential pressure transmitter, making it appropriate for applications where those components are sourced or specified separately. Maximum operating temperature is 120 degrees F.

Key Features

• Center averaging design provides representative velocity measurement across the full duct cross-section
• Velocity range of 400 to 5,000 FPM covers typical commercial HVAC duct velocities
• 5 percent accuracy rating for reliable airflow data in balancing and controls applications
• 12-inch diameter sizing for direct installation in matching round damper assemblies
• Kit ships without actuator and without differential pressure transmitter for flexible system integration
• Maximum operating temperature of 120 degrees F

Compatibility

Designed as an OEM-style flow measurement component for 12-inch round damper assemblies in commercial HVAC air distribution and controls systems.

Installation Notes

Installation is performed by licensed HVAC technicians or certified controls contractors. De-energize the air handling system and verify zero airflow before inserting or securing the probe in the damper assembly. Ensure the probe is oriented correctly per manufacturer directional markings to achieve accurate center-averaging readings. Reference applicable mechanical and controls codes, including ASHRAE guidelines for air measurement, during commissioning.

Technical Specifications

• Type: Round Air Flow Station
• Diameter: 12 inches
• Length: 12 inches
• Velocity Range: 400 to 5,000 FPM
• Accuracy: 5 percent
• Maximum Operating Temperature: 120 degrees F
• Actuator Included: No
• Differential Pressure Transmitter Included: No

Standard Information

• Brand: JOHNSON CONTROLS
• Manufacturer Part Number: RAA-12-X