Project Quick Facts

• Beall Elementary School
• Owner: Montgomery County Public Schools
• Type of project: HVAC Equipment Replacement
• Location: Rockville, MD
• Approx. square footage: 72,000 sq. ft.

Project Details

Alban Engineering, Inc. performed this work as a prime consultant through the Montgomery County Public Schools Open End Contract. The scope of work included replacement of the existing heating plant, three (3) packaged rooftop units, approximately seventy (70) fan coil units, and all building pneumatic temperature controls were replaced with Direct Digital type (DDC) electric/electronic actuation. Existing non-condensing boilers were replaced with high efficiency condensing type, the existing constant flow heating water and dual temperature water pumps were replaced with variable flow type and the piping system within the boiler room was replaced, reconnected to the existing chiller piping and provided with a system differential pressure bypass to maintain minimum flow through the existing chiller. Packaged gas fired rooftop units were replaced in kind with high efficiency type. The structure had to be modified to support the heavier units located on adapter curbs. Horizontal and vertical fan coil units were replaced in kind including run-out piping, valving and controls. Existing classroom casework had to be uniquely modified to create an accessible valve compartment for floor mounted FCU’s located in classrooms where the existing run-out piping was located horizontally under  the casework in the toe space from the demising wall to the fan coil unit. All work was completed during one summer.

The electrical scope of work includes support for the replacement of all classroom fan coil units, rooftop units, boilers and associated pumps. New circuit were provided to the new proposed mechanical equipment and were coordinated with the equipment requirements and MCPS standards. The existing fire alarm system was extended to accommodate the additional duct detectors and associated remote test switches as well as new carbon monoxide detector located in the boiler room.