Journeyman Plumber ExamGas PipingEasy
A plumber is installing a gas clothes dryer in a residential laundry room. The dryer requires a flexible connector for connection to the rigid gas piping. Which of the following is an essential requirement for the installation of this flexible connector?
- AIt must be listed for appliance connectors and not exceed 6 feet in length.
- BIt must be permanently attached to the appliance and not easily removable.
- CIt can be routed through an attic or crawl space if properly supported.
- DIt must be installed in a concealed location to protect it from damage.
Show answer & explanationAnswer & explanation
Correct answer: A. It must be listed for appliance connectors and not exceed 6 feet in length.
Flexible gas appliance connectors must be specifically listed for that purpose and typically have a maximum allowable length, often 6 feet, to minimize potential for damage or stress. They are not intended for concealed installation or long runs through spaces like attics.
Why the other options are wrong
- B. Flexible connectors are designed to allow for easy disconnection of the appliance for service or replacement, so they are not permanently attached.
- C. Flexible connectors are not designed or permitted for routing through concealed spaces like attics or crawl spaces; rigid piping should be used for such runs.
- D. Flexible connectors are generally not permitted in concealed locations because they are more prone to damage and difficult to inspect.
Flexible Gas Appliance Connector
A corrugated metal or stainless steel tubing with fittings, used to connect a gas appliance to the rigid gas piping.
- Must be listed for appliance connection.
- Maximum length typically 6 feet.
- Not for concealed installation.
Memory trick: Flex it right, keep it short, keep it exposed, for a safe gas report!