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Nailor News 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 Pump Building Systems: Cooling Tower

November 9, 2020

By: Matthew Crump, PE

In our previous articles we highlighted the benefits, design, energy efficiency, and configurations of water source heat pump technology.  Though heat pumps include a refrigeration cycle and air conditioner in one small package, they are only able to do this in cooperation with a few building systems that are critical for removing or delivering heat from/to the heat pump.  To remove heat from the units the building system includes a cooling tower, and to add heat a boiler.  The tower and boiler are connected...

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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

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 (Ultraviolet light) to capture and destroy...

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Constant Volume Regulators: What are they and how they help

October 6, 2020

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 experience the incorrect amount of supply/exhaust air it can affect the...

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Filters on Fan Powered Terminal Units

September 8, 2020

By: Gus Faris & Matthew Crump, PE


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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