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Optimized Combustion: Eliminates air infiltration at the burner-to-cabinet junction
minimizing system downtime during emergency repairs
This unit is essential for technicians requiring precise refrigerant flow control and long-term reliability in commercial refrigeration racks and split systems
turn the adjustment screw counterclockwise until it stops
Trane CNT7738 Control 326070-701 Optimized Combustion: Eliminates air infiltrationFor technicians and contractors servicing single stage heating systems, the Trane CNT7738 Control (also identified by the newer part number CNT07738) is the vital 1Stg integrated furnace control for maintaining system reliability. This genuine OEM furnace circuit board manages critical unit operations, including ignition timing, inducer blower speed, and gas valve activation, while consistently monitoring safety sensor inputs. Designed specifically