HVAC

25 Oct Optimize your VAV system to improve comfort, reduce over-cooling and save energy with time-averaged ventilation (TAV)

Posted at 08:03h in Building Controls, Energy Management, HVAC, Offices - Commercial Real Estate, Retro-Commissioning by Duane Kubischta 0 Comments

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Commercial building heating, ventilation and air conditioning (HVAC) systems commonly use variable air volume (VAV) systems for their heating and cooling needs. VAV systems can be more energy efficient when properly controlled and operated. We frequently find these systems performing less than optimally and recommend...

20 Sep 6 Tips for Successful Installation of VRF/VRV Units at Your Building

Posted at 08:24h in Energy Management, HVAC by Amol Shenoy 0 Comments

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We’ve seen an increased interest in Variable Refrigerant Flow (VRF) (aka Variable Refrigerant Volume or VRV) systems. Many view them as a panacea for a building’s HVAC needs. For building owners or managers with no prior experience with VRF/VRV units, we recommend considering the following...

What Are the Benefits And Disadvantages Of Indirect – Direct Evaporative Cooling Systems

26 Jul What Are the Benefits And Disadvantages Of Indirect – Direct Evaporative Cooling (IDEC) Systems?

Posted at 08:05h in Energy Audits, Energy Management, HVAC by Rama Vetrivel 0 Comments

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Improvements to cooling systems are one of the most effective ways to increase your bottom line and meet sustainability goals, especially if your building requires a lot of cooling. Schools, data centers, offices, clinics, warehouse/distribution centers and others can make great candidates for capturing the...

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19 Jul Improving Fan System Energy Efficiency, Acoustic Comfort, and Building Value with New Construction Commissioning

Posted at 08:09h in Commissioning, HVAC by Ryan Swanson 0 Comments

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We often speak of new construction commissioning as a quality assurance process for new buildings, beginning from conception and design and continuing through construction and into initial occupancy. Some see it merely as a necessity for obtaining LEED points and complying with energy code. Others...

05 Jul Why Not Commissioning Your Building’s Next Project Hurts Your Bottom Line

Posted at 08:20h in Building Controls, Commissioning, HVAC, Lighting by David Gilliland 0 Comments

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As an energy efficiency consultant, my primary job is to recommend energy projects to my clients. More often than not, they base their decision to implement the project on its cost-effectiveness. For energy retrofit projects, establishing payback is fairly easy – the project costs $X,...

28 Jun What Does a VAV Box k-factor Mean for Efficient Building Operation?

Posted at 08:16h in Commissioning, HVAC, Retro-Commissioning by kW Engineering 0 Comments

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In heating, ventilation and air conditioning (HVAC) systems, airflow reported at the variable air volume (VAV) box is actually a measure of total pressure. It gets converted into an airflow by a multiplier that is generated during testing, adjusting and balancing (TAB). This multiplier is...

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24 May When is Title 24 (T24) Mechanical Acceptance Testing Required for an Occupancy Permit?

Posted at 08:23h in Commissioning, Energy Policy, HVAC by Eric Uribe 0 Comments

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We’ve recently seen an uptick in city and county building inspectors asking for mechanical acceptance forms prior to granting an occupancy permit. This trend demonstrates that perhaps code enforcement is catching up to code. As of the 2013 California energy code, effective July 1, 2014, mechanical...

15 Mar What Will Happen to HVAC Refrigerants with the HFC Phase Out?

Posted at 08:25h in Energy Efficiency Industry, Energy Policy, HVAC by Jim Kelsey 0 Comments

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I think that the energy efficiency industry needs a big wake-up call around changes that are coming to the world of refrigerants. In last week’s post, I discussed how these changes are going to hit the commercial refrigeration market. But the coming changes to HVAC...

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01 Mar Leveraging Custom SkySpark Dashboards to Improve Building Operation and Save Energy

Posted at 08:06h in Analytics, Commissioning, Energy Management, HVAC, Lab Sustainability, SkySpark by Raphael Vitti 0 Comments

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SkySpark collects and stores data from any number of sources and provides an open analytics platform that can be programmed to automatically make sense of the data and provide insights on a building or a portfolio of buildings. This open platform can be customized to a...

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08 Feb How To Optimize Your Condensing Boiler System For Maximum Energy Savings

Posted at 08:18h in Commissioning, Energy Audits, HVAC by Ryan Swanson 0 Comments

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I first encountered condensing boiler woes when conducting an energy audit for a winery which had retrofitted its conventional boilers to condensing boilers. Operating with a supply water temperature of 180°F and a return water temperature of 140°F, the boilers never operated in condensing mode...

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HVAC

25 Oct Optimize your VAV system to improve comfort, reduce over-cooling and save energy with time-averaged ventilation (TAV)

20 Sep 6 Tips for Successful Installation of VRF/VRV Units at Your Building

26 Jul What Are the Benefits And Disadvantages Of Indirect – Direct Evaporative Cooling (IDEC) Systems?

19 Jul Improving Fan System Energy Efficiency, Acoustic Comfort, and Building Value with New Construction Commissioning

05 Jul Why Not Commissioning Your Building’s Next Project Hurts Your Bottom Line

28 Jun What Does a VAV Box k-factor Mean for Efficient Building Operation?

24 May When is Title 24 (T24) Mechanical Acceptance Testing Required for an Occupancy Permit?

15 Mar What Will Happen to HVAC Refrigerants with the HFC Phase Out?

01 Mar Leveraging Custom SkySpark Dashboards to Improve Building Operation and Save Energy

08 Feb How To Optimize Your Condensing Boiler System For Maximum Energy Savings

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