The new modulating or stage-fire Versa IC™ boiler control fully integrates temperature control, ignition, safety, and individual fault monitoring. The control is field-upgradable. According to the manufacturer, the unique cold-water protection control function is now built in; the installer only needs to add the appropriate three-way valve or variable-speed pump. A Modbus communications port is standard for continuous monitoring, trending, and troubleshooting. The Versa IC control platform is incorporated into the company’s XFyre modulating condensing hydronic and domestic hot-water boilers.