McKenney's developed energy conservation measures and overhauled the HVAC system of a landmark municipal building. They replaced hard-to-access air handling units and chillers after hours to ensure no disruptions. Over 30 ECMs were developed and the customer selected projects providing the best ROI. Replacements were done safely, on schedule and budget and the ECMs are beginning to pay for themselves through utility savings.

1. M
cKenney’s developed energy
conservation measures (ECMs)
and overhauled the HVAC
system of a landmark building.
THE CHALLENGE
This city’s municipal building is one of its
most important and where critical business
essential to city operations is conducted daily.
McKenney’s was commissioned to replace
and rebuild hard-to-access AHUs and chillers
and make recommendations for building
energy performance improvements. Also, the
team had to perform all replacements after
hours–ensuring no disruptions.
THE SOLUTION
The McKenney’s team and Johnson Controls
conducted site assessments and developed
over 30 ECMs. The customer then determined
which projects would provide the best ROI and
those were selected in developing the overall
project scope for the city.
The McKenney’s team then supported the
selected project scopes as designer of record
and worked with structural engineers and city
crews to remove the chillers by using cranes.
Where replacements where not possible—
because of their locations in the building—
the team rebuilt the large air handling units.
Building Information Modeling was used to
prefabricate piping connections and expedite
onsite installation.
THE RESULTS
Replacements to the AHUs and chillers
were done safely, on schedule and budget.
The ECMs have begun to pay for themselves
through utility savings.
Blowing the Lid Off City Hall
PROJECT NAME
žž City Energy Savings
Performance Contract
PROJECT LOCATION
žž Georgia
PROJECT TEAM
žž Owner: Confidential
žž General Contractor:
Johnson Controls
žž Subcontractor: McKenney’s, Inc.
SPECIALIZATIONS
Building Information Modeling
Design/Build
Energy Management
Pipe Shop Prefab
MARKETS
žž Government
The content of this document is not intended as an endorsement.
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Atlanta, Georgia 30316
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Charlotte, North Carolina 28214
Top: Crane replacement
of old to new chillers.
Left: Old and new chillers.