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Elizabethtown board hears three HVAC retrofit options, ESCO urges Feb. 24 decision to meet summer construction window
Summary
Quandell Energy Services presented three options for East High's HVAC replacement — central plant replacement, central geothermal plant, or individual geothermal heat pumps — with 20-year ownership cost estimates and a recommended board decision at the Feb. 24 voting meeting to allow March bidding and summer construction.
Quandell Energy Services presented to the Elizabethtown Area School District board on Wednesday evening, outlining the condition of East High School's heating and cooling systems and three options to replace or modernize them.
The firm’s lead engineer, Sean Nicholson, said the boilers and air-cooled chiller were installed during a 2011 renovation and are now near mid-to-late life. Nicholson said humidity loggers showed many classrooms exceeding recommended relative-humidity ranges, with nearly 60% of logged times in ranges the presenters flagged as uncomfortable or concerning for condensation and equipment corrosion.
"When we get into that orange and red area, that's where we start being concerned about condensation on the walls, equipment,…
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