Goodman Furnace: Dual certification: non-direct and direct vent
Dual certification: non-direct and direct vent on a Goodman furnace: The furnace can be installed as non-direct vent (one pipe, vent only) or direct vent (two pipes, vent plus combustion air intake). Use the section for the chosen type for pipe size, length, elbows and terminations.
Applies to: Dual-certified MVC96/CVC96 models
How to fix dual certification: non-direct and direct vent: step by step
- Decide between non-direct vent (single pipe) and direct vent (dual pipe).
- Follow the matching section for piping size, length, elbows and terminations.
If the unit shows an error code, look it up: Goodman Furnace codes
More commissioning tips for furnace
Source: Goodman GMVC96 service and troubleshooting manual, p. 11. 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.