Allied Furnace: Gas piping layout (left side, right side, horizontal)
Gas piping layout (left side, right side, horizontal) on a Allied furnace: Gas piping can enter from the left side (standard), the right side (alternate), or run for horizontal applications. Only black iron pipe may be routed inside the cabinet. A drip leg, ground joint union and manual main shut-off valve go in the supply line.
Applies to: Gas piping, all sizes in this manual
How to fix gas piping layout (left side, right side, horizontal): step by step
- Install a manual main shut-off valve and a drip leg in the supply line.
- Install a ground joint union in the supply piping.
- Route only black iron pipe inside the cabinet and seal the cabinet opening with the bellows grommet.
- Plug the unused side of the gas valve when piping from the other side.
If the unit shows an error code, look it up: Allied Furnace codes
Source: Allied 92G1UH installation manual, p. 40. 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.