Because penetration exceeds 12 in only when C plus D is greater than 12 in, verify the installed geometry and provide support whenever the official threshold is met.
Important Notice: Confirm the complete 21000-16-10-000-102-03-02 identity, installed-system configuration, approved isolation and functional acceptance record before service release.
Important Notice: The first document presents model-specific technical data and engineering questions. The second provides a separate installation, commissioning and acceptance workflow.