Final answer:
A sediment trap should be installed downstream of the equipment's shut-off valve and as close to the inlet as possible to capture debris and ensure safe operation of the appliance.
Step-by-step explanation:
A sediment trap should be installed downstream of the equipment's shut-off valve and as close to the inlet of the equipment/appliance as possible. A sediment trap, also known as a dirt leg, is a piping configuration installed on natural gas lines that helps in capturing any sediment, debris, or moisture in the gas before it enters the equipment. Its purpose is to prevent clogging or damage to the appliance, ensuring safe and efficient operation.
For optimal performance, the sediment trap should be placed as close to the equipment's gas inlet as possible while still being downstream of the shut-off valve to allow for easy maintenance and cleaning.