Precise Timing Logic: Refined post-purge and blower delay-off settings optimize sensible heat recovery and system efficiency

this is for intermittent pilot ignition (IPI) systems

The Johnson Controls A11D-5 is a professional-grade low temperature cutout freezestat designed for critical freeze protection in HVAC systems

microprocessor-based integrated furnace control designed as a high-performance direct replacement for CNT5165 and a wide range of Trane/American Standard single-stage ignition modules

Refrigerant # Ctrl

Lochinvar & A.O. Smith 100167804 Board 340793-762 Precise Timing Logic: Refined post-purgeThe Lochinvar & A. O. Smith 100167804 Integrated Control Board is the primary OEM replacement part for the Armor AW400 condensing water heater series. As a veteran grade HVACR control module, this board manages the critical sequence of operation, including the 10 second prepurge cycle, spark to flame trial for ignition, and continuous flame rectification. It acts as the master processor for ignition control and temperature regulation, ensuring the