The AERCO Boiler Valve Controllers (4-Boiler and 12-Boiler) can help reduce energy consumption and operating costs of variable-flow heating systems. Designed for use with the AERCO Benchmark and KC1000 boilers, the boiler valve controllers automatically sequence each motor-operated valve so minimum system flow requirements are reduced to that of a single boiler.
AERCO. www.aerco.com. Circle 17