Mcquay Daikin 111048103 Air Sensor

The McQuay Daikin 111048103 Air Sensor is a precision remote wall-mounted temperature sensor engineered for commercial HVAC systems, including PTAC units and fan coil units (FCU). This Daikin 111048103 sensor functions as a critical component in maintaining accurate environmental feedback for micro-tech controllers, providing a linear 4 to 20 mA output signal. Designed for surface mount applications, it utilizes Johnson Controls A99RM-3 technology with a catalytic and electrochemical sensing element to ensure high-accuracy readings across a broad operating range from -40°F to 122°F. This HVAC wall sensor is essential for technicians addressing Daikin malfunction codes related to room temperature drift or sensor system failures. Built with a durable white plastic housing and featuring no-display feedback, it provides a clean aesthetic while delivering the 24V power required for consistent HVAC environmental monitoring. Professionals utilize this replacement air quality sensor to optimize cycling and improve energy efficiency in Daikin Applied systems.

• Broad Operating Range: Operates effectively in extreme conditions from -40°F to 122°F, making it suitable for diverse commercial environments.
• Precise Signal Output: Features a standard 4 to 20 mA output for seamless integration with McQuay Micro Tech II and legacy control boards.
• OEM Compatibility: Designed specifically for Daikin-McQuay equipment, ensuring correct electrical resistance and physical fitment.
• Streamlined Installation: Compact surface mount design includes logo faceplates and hardware for efficient field replacement by contractors.

Is this sensor compatible with building automation systems (BAS)?
This specific model is designed for direct connection to compatible Daikin-McQuay controllers and is generally categorized as not being directly compatible with stand-alone Building Automation Systems without a translation module.

What are the power requirements for the 111048103?
The unit requires a 24V power supply to function correctly within the control loop, consistent with standard HVACR control circuits.

Can this be used as a replacement for the Johnson Controls A99RM-3?
Yes, the 111048103 is the official Daikin cross-reference for the A99RM-3 sensor, often found in Micro Tech and PTAC applications.

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.