Building Loop

Definition

A building loop is the piping system that conveys heated and cooled fluids through the building for use by decentralized building heating and cooling equipment.

Purpose

The building loop distributes thermal energy throughout a building, ensuring that heating and cooling systems can maintain comfortable indoor temperatures. It plays a crucial role in the energy efficiency and performance of HVAC systems.

Examples of Use

1. HVAC Systems: Building loops are integral to central heating and cooling systems, distributing hot or cold water to various units throughout the building.
2. Radiant Heating: In-floor radiant heating systems use a building loop to circulate warm water beneath the floor, providing efficient heating.
3. Chilled Water Systems: A building loop circulates chilled water to air handlers and fan coil units, cooling the building effectively.

Related Terms

• Central Plant: The facility that generates heating and cooling energy for distribution through the building loop.
• Heat Exchanger: A device that transfers heat between fluids without mixing them, often part of a building loop.
• Hydronic System: A heating or cooling system that uses water as the heat transfer medium, circulating it through a building loop.

Notes

Proper design and maintenance of the building loop are critical for the efficient operation of HVAC systems. This includes regular inspection for leaks, ensuring proper insulation, and balancing the system to achieve even distribution of thermal energy.