Attachment 19 Structural Support for VFDs.pdf

This is a structural engineering drawing set for a building project, specifically framing plans and connection details. The document presents four detailed framing plans (VFD-1A & VFD-1B, VFD-2A & VFD-3A, VFD-2B & VFD-4A) with associated notes, material specifications, and construction details.

The drawings specify structural steel construction using ASTM A36 and ASTM A325 materials for beams, channels, and plates. Key structural elements include built-up wide flange connections, channel-to-wide flange connections, and various mechanical attachments. Load capacities are indicated, including beam loads ranging from 100 PSF to actual plus 15 PSF depending on floor location and application. General notes address critical construction requirements including the need for structural engineer approval of dimensions before construction, protection of existing utilities and equipment, field weld connection compliance, proper grounding and paint preparation, and use of approved welding procedures. The drawings include a comprehensive abbreviations key (defining terms such as CKHL for chiller, EX for existing, and VFD for variable frequency drive) and identify Atha Corporation as the responsible entity. The document bears a revision date of 12/4/12 and carries designation S101, indicating this is Sheet 101 of a multi-sheet drawing set for a construction or renovation project.