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Nailor Airwaves is your source for content on relevant topics concerning Nailor Industries, Inc. and the HVAC industry. New product releases, case studies, product & project spotlights, employee interviews, trade publication articles, and general announcements are some of the content types you can expect to find in the Nailor Airwaves.

Water Source Heat Pumps: Configurations

October 26, 2020

By: Matthew Crump, PE

Water source heat pump (WSHP) systems have proven in many studies to be a more efficient, less complex, and higher ROI air conditioning selection for a variety of project types.  These systems utilize a building loop of water to reject/draw heat into the individual dwelling unit.  The benefits include no external equipment at each building unit, only one set of (possibly) un-insulated piping for the building loop, and distributed conditioning (one heat pump isn’t affected by the downtime of another).  To meet...

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Does Your Space Deserve the Most Advanced Room Air Cleaner?

October 14, 2020

By: Victoria Stevens

The American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE) is the leading organization focused on researching and guiding proper HVAC system design and construction for maintaining comfort, health, and wellbeing of building occupants.  This includes controlling infectious disease contaminants in the air within a space. The ASHRAE Position Document on Infectious Aerosols (COVID-19) recommends that existing spaces have high-efficiency particle filtration paired with UV-C Lights (...

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Constant Volume Regulators: What are they and how they help

October 6, 2020

By: Kevin Del Castillo, EIT

Many obstacles will arise when trying to keep a building 30-50°F warmer or cooler than the outside temperature. The aim of the HVAC system is to keep the buildings’ inhabitants comfortable and healthy while considering system costs. When designing and installing multi-floor supply and exhaust systems, balancing can become an issue.  Fan pressures and thermal stack effects can cause differences in how much supply/exhaust air each floor experiences.  When spaces...

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Filters on Fan Powered Terminal Units

September 8, 2020

By: Gus Faris & Matthew Crump, PE

Summary

Adding a filter that has greater efficiency than just a throwaway fiberglass filter can be done but could require modifications to the unit.  Each individual unit’s size, design, and operating environment would have to be considered to determine the right route to take to ensure the performance of the unit is not compromised by the addition of the filter. Also, this analysis was done considering the initial pressure drop across the filter.  As the filter is used and becomes...

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Energy Efficiency: Water Source Heat Pumps

August 21, 2020

By: Matthew Crump, PE

One of the most important factors in selecting any piece of HVAC equipment is energy efficiency.  In my previous article I discussed how the critical components of the WSHP works to deliver conditioning to the space.  Here I’ll discuss how energy efficiency is calculated, tested, and communicated along with measures that providers can take to increase the efficiency of their product. 

Energy efficiency is the measure of how much cooling/heating you get for each unit of energy put into the equipment...

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