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Texas Instruments (Sensors and Controls)

DiagnosTECH? Integrated Furnace Control

Type:  Controller
Description:  DiagnosTECH? is an integrated furnace ignition control board with diagnostic and monitoring capabilities. The control monitors the flame current, thermal limit, pressure switch and thermostat inputs in order to insure safe operation, while also logging any error code history with a relative time stamp.
Connectivity:  Modbus
Features:  Single button error retrieval of last five error codes (even with power loss); Defined on board test pads for easy flame current monitoring; Automatic flame current sensing with early cautionary error code warning; Advanced flash codes with tri-color LED; Communications port; Selectable heat blower off delay; Selectable continuous fan speed; Two-speed cooling option for multistage compressors; Electronic air cleaner and humidifier terminals (115 VAC)
Specifications:  See attached spec. sheet.