Holly Hill Middle School Addition

Project Overview

Holly Hill Middle School in Holly Hill, Florida received a 53,345-square-foot addition. BEED Engineering provided mechanical and plumbing engineering design for the addition. The project was designed to a USGBC LEED Silver rating.

A school addition has to cool classrooms without treating the new wing as a separate building. Energy recovery, demand-based ventilation, and low-flow plumbing were part of the same assignment that produced the LEED Silver systems list.

The Challenge

The addition needed a packaged chilled-water plant, energy recovery, and ventilation that could follow occupancy instead of running at a fixed outdoor-air rate.

The design had to:

• Provide an air-cooled packaged chiller plant
• Include fixed-plate energy recovery units and variable air volume air-handling units
• Provide HVAC controls and demand-based ventilation control
• Specify low-flow water-saving plumbing fixtures

BEED Engineering's Scope

BEED provided mechanical and plumbing engineering design for the Holly Hill addition. Electrical engineering and commissioning were not listed as part of this assignment.

Engineering Solutions

An air-cooled packaged chiller plant serves the 53,345-square-foot addition. Fixed-plate energy recovery units and variable air volume air-handling units condition the occupied spaces. HVAC controls include demand-based ventilation so outdoor air follows occupancy. Low-flow plumbing fixtures complete the water-efficiency side of the LEED Silver systems list.