Andover Controls Infinity EMX150 Expansion Module 24VDC SCX LCX TCX BAS HVAC

Andover Controls Infinity EMX150 Expansion Module 24VDC SCX LCX TCX BAS HVAC

The Andover Controls Infinity EMX150 is a two-output analog expansion module designed for use with Andover Controls Infinity building automation system (BAS) controllers. It extends the output capacity of SCX, LCX, and TCX controller units, providing two independently controllable 0–20V DC analog outputs for HVAC equipment control applications such as damper actuators, variable-speed drives, and valve positioners.

Specifications & What's Included

• Manufacturer: Andover Controls
• Series: Infinity
• Model: EMX150
• Type: Analog Expansion Module (BAS Accessory)
• Input Voltage: 24VDC
• Input Current: 55mA
• Output Voltage Range: 0–20V DC
• Output Current: 5mA per output
• Power Classification: Class II, 24VDC
• Outputs: 2 (Output A and Output B), each with RET terminal
• Board Address Selector: Board 1 or Board 2 (configurable via on-board switch)
• Override Control: Auto / Manual for channels A and B
• Connectors: Green screw terminal block (top); dual-row pin header (internal PCB interface)
• UL Listed: 58B2 — Accessory Equipment for use with SCX, LCX, and TCX Units
• CE marked
• Wiring requirement: Copper conductors only
• Form Factor: Compact panel/DIN-mount module in black enclosure with mounting bracket flanges and keyhole slots
• Compatible with: Andover Controls Infinity SCX, LCX, and TCX controller units
• Included: Module only — no cables or mounting hardware

Applications

The Andover Controls Infinity BAS platform is a commercial and industrial building automation system used widely in HVAC, lighting, and energy management applications. The EMX150 expansion module plugs into Infinity SCX, LCX, or TCX controllers to add analog output points, allowing the controller to drive additional field devices such as actuators, modulating valves, and variable-frequency drives. This type of expansion module is commonly used in large commercial buildings, campuses, hospitals, and industrial facilities running Andover Controls (later acquired by Schneider Electric) BAS infrastructure. The Infinity product line dates from the late 1990s through the 2000s and remains in active service at many sites that have not yet migrated to newer platforms, making spare and replacement modules like the EMX150 an ongoing need for facility engineers and BAS technicians supporting legacy Andover installations.