Day & Night Furnace Manuals — page 3
Select your Day & Night model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate.
Day & Night furnaces by model number
| Model | Description | Certified |
|---|---|---|
| N96MSN1002120A | 96.3% AFUE gas furnace | July 2026 |
| N96MSN1002120A*D | 95% AFUE gas furnace | August 2026 |
| N96MSN1002122A | 96.3% AFUE gas furnace | August 2026 |
| N96MSN1002122A*D | 95% AFUE gas furnace | August 2026 |
| N96MSN1202422A | 96.1% AFUE gas furnace | July 2026 |
| N96MSN1202422A*D | 95% AFUE gas furnace | August 2026 |
| N96MSN1402422A | 95% AFUE gas furnace | July 2026 |
| N96MSN1402422A*D | 95% AFUE gas furnace | July 2026 |
| N96VSN0401410B | 96% AFUE gas furnace | July 2026 |
| N96VSN0401410B*D | 95% AFUE gas furnace | July 2026 |
| N96VSN0401712B | 96.7% AFUE gas furnace | July 2026 |
| N96VSN0401712B*D | 95% AFUE gas furnace | July 2026 |
| N96VSN0601412B | 95% AFUE gas furnace | August 2026 |
| N96VSN0601412B*D | 95% AFUE gas furnace | August 2026 |
| N96VSN0601716B | 97% AFUE gas furnace | August 2026 |
| N96VSN0601716B*D | 95% AFUE gas furnace | July 2026 |
| N96VSN0801716B | 97% AFUE gas furnace | August 2026 |
| N96VSN0801716B*D | 95% AFUE gas furnace | August 2026 |
| N96VSN0802120B | 97% AFUE gas furnace | July 2026 |
| N96VSN0802120B*D | 95% AFUE gas furnace | August 2026 |
| N96VSN1002120B | 96.3% AFUE gas furnace | August 2026 |
| N96VSN1002120B*D | 95% AFUE gas furnace | August 2026 |
| N96VSN1202422B | 96.1% AFUE gas furnace | August 2026 |
| N96VSN1202422B*D | 95% AFUE gas furnace | August 2026 |