Andover 05-1000-697-RC

The Andover 05-1000-697 is the main circuit board for an SCX 920 Infinity system controller, a stand-alone, microprocessor-based controller used for direct digital control of chillers, cooling towers, boilers, air handling units, and similar central-plant equipment. This listing is the reconditioned board itself, sized to fit into an existing SCX 920 chassis or enclosure without buying a complete replacement unit.

Key Features

• Sixteen universal inputs and eight universal outputs support digital, counter, voltage, or temperature signals for flexible point mapping
• Communicates peer-to-peer over the Infinet RS-485 bus with up to 254 SCX 920s on one Andover CX-family network
• Programmed in Andover's Plain English language, with a battery-backed real-time clock for schedule and setpoint retention through a power failure

Technical Specifications

• Power: 24/120/240 VAC, 50/60 Hz, 32 VA
• Overload Protection: 3 A 3AG fuse, MOV protected
• Inputs/Outputs: 16 universal inputs; 8 universal outputs (Form C relay, pulse, or 0-20 VDC/mA)
• Battery Backup: Replaceable lithium, ~7 years typical accumulated backup of RAM and real-time clock