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A case study of the overview, process, and results of the re-tuning that was conducted in a building in Arlington, Virginia by Vornado Realty Trust in October 2012. Re-tuning provided the facilities management team with the ability to identify and understand building scheduling opportunities that drove significant, low-cost energy savings. Five measures were conducted, many of which pertained to the HVAC system.

Re-tune the building based on specific findings. Building re-tuning maxims, assumptions, and conclusions.

Part 10 of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

Understand the purpose of re-tuning, definition of building re-tuning, and what to expect from the training class

Part one of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

Understand that re-tuning is the process of learning about a building and then making incremental adjustments to achieve more desirable results.

Part 2 of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

A guide to understand the information needed to re-tune a building

Part 3 of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

Detect potential operational problems even before visiting the building. Identify problems that require time histories to detect – incorrect schedules, no use of set back during unoccupied modes, poor economizer operation. Understand how to use the Energy Charting and Metrics (ECAM) tool

Part 4 of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

Learn how to re-tune air-handling units (AHUs)

Part 5 of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

Understand re-tuning for central utility plants including boiler and chiller operation issues.

Part 8 of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

Understand how to conduct a thorough building "walk down" for a re-tuning effort. Purpose being to develop a general impression of: overall building condition, overall building design, HVAC system design. Also to collect some basic data on the building systems at a level of detail greater than the initial data collection and to confirm/verify issues or problems identified through trend analysis.

Part 9 of a 10 part Building Re-tuning training material.
Entire program is at http://buildingretuning.pnnl.gov/training.stm

The primary audience for this instructor manual is the person who will be teaching the re-tuning course. In addition, community college instructors, retro-commissioning training providers and building operator training providers may find value in the material presented in this instructor manual as well. The purpose of this course is to help building operations staff to learn how to operate buildings more efficiently, reduce operating cost and provide energy savings. The knowledge and skills learned through the training will be highly valued by organizations and companies seeking to improve the performance of
their buildings.