
Make all tubing bends smooth and without deformation. Avoid flexible gas connections. Internal diameter of flexible lines may not provide unit with proper volume of gas. 3. Install a manual main gas shutoff valve at the unit’s gas inlet, outside of the unit. 4. Run pipe or tubing to the unit’s gas inlet. If you use tubing, obtain a tube to pipe coupling to connect the tubing to the unit’s gas inlet. 5. Install a sediment trap in the supply line to the unit’s gas inlet (see FIG. 3-1). 6. Apply a