Refrigerant Detection System (RDS) Air Handler Sensor Kit

Armstrong Air 27J27 – OEM Air Handler Sensor Kit for System Control Applications

The Armstrong Air 27J27 is an original equipment manufacturer (OEM) sensor kit used in air handler units to monitor key environmental or system parameters. This kit enables compatible control boards to regulate blower operation and maintain desired system performance. It is intended for use in select Armstrong Air and allied brand HVAC systems requiring sensor replacement or retrofit.

Application and Use

This sensor kit supports the function of air handlers by supplying real-time feedback to control modules. Accurate sensor data ensures proper airflow regulation and may be used in conjunction with temperature, humidity, or coil condition monitoring, depending on the air handler model. The kit may be installed during unit commissioning, service, or equipment upgrade.

Key Features

• OEM-Compatible Sensor Assembly – Engineered for integration with Armstrong Air air handlers using compatible control logic
• System Control Support – Provides sensor input used in air handler performance regulation, staging, and fault diagnostics
• Direct-Fit Replacement – Designed to meet original equipment dimensions and electrical specifications
• Reliable Operation – Constructed to withstand HVAC service conditions, including temperature and airflow exposure

Technical Specifications

• Part Number: 27J27
• Manufacturer: Armstrong Air (Allied Air Enterprises)
• Component Type: Sensor assembly
• Application: Air handler performance monitoring
• Compatibility: Designed for use with select Armstrong Air models – verify against system documentation

Installation Guidance

This component should be installed by qualified HVAC technicians. Ensure system power is safely disconnected before handling wiring or board connections. Follow the unit’s service manual or wiring diagram for correct installation location, orientation, and connector placement. Improper installation may result in inaccurate readings or system fault codes.

Contractor Notes

• Verify model compatibility prior to ordering or installation
• Sensor function may depend on software settings or dip switch configurations on the control board
• Ideal for scheduled service, warranty replacement, or retrofitting discontinued sensor SKUs

Summary

The Armstrong Air 27J27 Air Handler Sensor Kit is a factory-authorized part used to maintain operational integrity and control performance in compatible HVAC systems. It ensures accurate system feedback and supports proper airflow staging and diagnostics as determined by the unit’s onboard controller.