23 80 00 Decentralized HVAC Equipment

Category Archives: 23 80 00 Decentralized HVAC Equipment

Being Radiant: Planning in-slab hydronic heating and cooling

Photo © Tim Griffith

In-slab hydronic radiant heating and cooling systems, along with downsized forced-air systems, are gaining popularity as a means of optimizing thermal comfort while reducing energy consumption. Typically designed in conjunction with radiant heating, radiant cooling systems circulate cooled water through the same network of pipes where warm water circulates during the heating season. This network of pipes can turn the floors, walls, and ceilings of a conditioned space into cooled surfaces that evenly absorb heat energy.

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Avoiding Problems in Aquatics Facilities: Atypical design for atypical buildings

Photo © BigStockPhoto/Nikita Sobolkov

There are many issues to consider when designing a natatorium, including the choice of structural systems, building enclosure components, mechanical systems, and the operation of adjacent spaces in multi-use facilities. The intent of this article is to discuss the typical problems that the authors have investigated in over a dozen existing natatoriums and provide practical guidance for avoiding those problems through diligent and careful design and construction.

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VRF Zoning Energy-efficiency Data: Five questions specifiers should ask

Images courtesy Mitsubishi Electric Cooling & Heating

As in HVAC systems, variable refrigerant flow (VRF) zoning technology is increasingly specified for its superior energy-saving benefits and precise zoned control. Nevertheless, specifiers often find it challenging to compare the energy-efficiency data of traditional commercial HVAC with VRF zoning systems. This article poses five questions that specifiers should ask about energy-efficiency data for VRF zoning and other HVAC systems, and provides the answers.

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