Install Sediment Trap Furnace

The international fuel gas code states that.

Install sediment trap furnace.

The outlet of the meter is one such location. Hi everyone i am the local mechanical inspector in my city. A sediment trap shall be installed as close to the inlet of the equipment as practical. The photo below shows 18.

The gas line is connected in the top of the tee and runs straight into the furnace. Before connecting the gas line it is recommended to install a drip leg in the form of a tee. The sediment trap needs to be installed downstream of the appliance s shutoff valve and as close to the appliance as practical. He has a horizontal run of 1 gas line actually several going to rooftop package units and he just put a tee right in the middle of the horizontal run with a nipple and cap stemming down from it.

Sediment traps are intentionally installed to help prevent sediment in the gas piping from getting into the gas valve or burner area of an appliance and fouling things up. The tee features a capped nipple on the bottom which helps trap sediment. A sediment trap is just a t fitting in the gas pipe with a capped pipe nipple at the bottom of the t. A drip leg can be installed anywhere at the low point in the piping system if there is moisture in the gas to allow for the removal of the condensation.

The sediment trap shall be either a tee fitting with a capped nipple in the bottom opening of the run of the tee or other device approved as an effective sediment trap. Sediment traps are usually installed very close to the water heater or furnace valve. Installed at different locations.