Overview
The Trane CNT7991 is a 2-stage ignition control board for Trane and American Standard gas furnaces. It manages the furnace ignition sequence and 2-stage burner operation. This board has been superseded by Trane CNT09419.
Features
- Genuine Trane OEM replacement part
- 2-stage furnace ignition control
- Manufactured for Trane by Emerson (50V54-571-02)
- Superseded by CNT09419
Specifications
- Part Number: CNT7991 (CNT07991)
- Brand: Trane
- Type: Ignition control board
- Stages: 2
- Voltage: 120 V
- Frequency: 60 Hz
- Manufacturer Cross Reference: Emerson 50V54-571-02
- Dimensions: 11.4 x 7.7 x 2.6 in
- Weight: 2 lb
- Superseded By: CNT09419
Applications
- Trane and American Standard 2-stage gas furnaces
- Some units also require ignitor kit KIT15816 when replacing this board


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