Nonmetallic escutcheons must be what?

Nonmetallic escutcheons must be what?

• A. Covers for sprinkler heads, must be listed
• B. Sprinkler Assembly
• C. Escutcheons made of nonmetallic materials, must be listed
• D. Recessed Sprinklers

Answer: (C)

Nonmetallic escutcheons must be listed to verify they are approved for use with the specific sprinkler head and piping in the system. Listing means a recognized testing laboratory has evaluated the escutcheon material for factors like heat resistance, compatibility with the sprinkler, and correct fit, so it won’t affect spray pattern, clearance, or overall system performance. If a nonmetallic escutcheon is used, it has to be part of a listed assembly and installed per the listing directions. This ensures safety and reliability in residential systems. The other statements don’t address this requirement. A nonmetallic escutcheon is not simply “a cover” or a generic sprinkler assembly, and it isn’t about the type of sprinkler (such as recessed) itself. Listing specifically governs use of nonmetallic materials.

Nonmetallic escutcheons must be listed to verify they are approved for use with the specific sprinkler head and piping in the system. Listing means a recognized testing laboratory has evaluated the escutcheon material for factors like heat resistance, compatibility with the sprinkler, and correct fit, so it won’t affect spray pattern, clearance, or overall system performance. If a nonmetallic escutcheon is used, it has to be part of a listed assembly and installed per the listing directions. This ensures safety and reliability in residential systems.

The other statements don’t address this requirement. A nonmetallic escutcheon is not simply “a cover” or a generic sprinkler assembly, and it isn’t about the type of sprinkler (such as recessed) itself. Listing specifically governs use of nonmetallic materials.