Carrier 48ZZ501302 Economizer Control Board (EXB) with Software

Description

The Carrier 48ZZ501302 is an OEM Economizer Control Board (EXB) with integrated software, engineered as a direct replacement for Carrier rooftop and packaged HVAC systems. This control board manages the economizer function — regulating outdoor air damper position to maximize free cooling and optimize indoor air quality while minimizing mechanical cooling runtime and energy consumption.

Key Features

• OEM Carrier replacement economizer control board (EXB) with factory-loaded software
• Manages outdoor air damper positioning for free cooling and ventilation control
• Integrated software enables precise economizer logic and system communication
• Designed for direct drop-in replacement in compatible Carrier packaged rooftop units
• Supports demand-controlled ventilation and outdoor air quality management
• Helps reduce mechanical cooling load, lowering energy costs
• Built to Carrier OEM specifications for reliable, long-term performance

Application

The 48ZZ501302 EXB control board is designed for use in Carrier commercial packaged rooftop units equipped with economizer assemblies. It serves as the intelligence hub of the economizer system, interpreting sensor inputs and issuing commands to the damper actuator to deliver the correct amount of outdoor air under varying conditions.

Why Choose an OEM Control Board?

Using a genuine Carrier OEM control board ensures full compatibility with your existing system controls, sensors, and actuators. Factory-loaded software eliminates the need for field programming and guarantees the board operates within Carrier’s engineered parameters — protecting equipment warranties and ensuring code-compliant economizer operation.

Specifications

• SKU: 48ZZ501302
• Brand: Carrier
• Type: Economizer Control Board (EXB) with Software
• Application: Carrier packaged rooftop HVAC units with economizer
• Replacement Type: OEM direct replacement