Allied Furnace: Combustion check
Combustion check on a Allied furnace: Check combustion only after the furnace has run at least 15 minutes with correct manifold pressure and gas flow. The maximum carbon monoxide reading should not exceed 50 ppm.
Applies to: All sizes
How to fix combustion check: step by step
- Run the furnace at least 15 minutes with correct manifold pressure and gas flow.
- Take the combustion sample beyond the flue outlet.
- Compare the CO2 reading with the CO2 table for the fuel type.
- Confirm CO is no higher than 50 ppm.
If the unit shows an error code, look it up: Allied Furnace codes
More commissioning tips for furnace
Source: Allied 92G1UH installation manual, p. 47. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.