Appendix B.pdf

This document is an Appendix B containing photographs documenting the existing HVAC equipment at the U.S. Forest Service Pacific Southwest Research Station's Institute of Forest Genetics in Placerville, California. The images show a propane-fired boiler located on an outdoor concrete pad under a protective structure, its associated electrical panel and accessories, a portion of ductwork connecting to a McQuay Air Handler, the Air Handler's nameplate, and a refrigerant circuit in the cooling section of the Air Handler that reportedly has a leak requiring repair.

The photographs provide visual documentation of the current equipment condition, highlighting specific components that will likely be addressed in the upcoming HVAC equipment repairs and replacement project. The images capture details such as the boiler's nameplate specifications, showing it is a hot water boiler manufactured by RayPak, Inc., and the Air Handler's LonMark 3.3 system configuration. The refrigerant circuit image specifically indicates a leak that needs to be repaired and the system charge adjusted to the correct level.