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.
Nailor Airwaves
Water Source Heat Pumps: Configurations
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 the needs of different space designs the WSHPs come in four different configurations: vertical stack, horizontal, packaged, and split. Each one of these have features and benefits as well as limitations that must be considered when selecting for your design… Read more
Water Source Heat Pumps: Configurations
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 the needs of different space designs the WSHPs come in four different configurations: vertical stack, horizontal, packaged, and split. Each one of these have features and benefits as well as limitations that must be considered when selecting for your design… Read more
Does Your Space Deserve the Most Advanced Room Air Cleaner?
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 biological aerosols. Most of the document focuses on how to optimize the design of the HVAC during construction to control the flow of biological aerosols as well as the temperature, pressure, & humidity in the space for ideal conditions… Read more
Constant Volume Regulators: What are they and how they help
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 humidity, air quality, and cost to condition the space. Constant Volume Regulators (CVR) are a simple solution to combat these problems. These simple cylindrical devices automatically control the passage of air without the use any electric… Read more
Filters on Fan Powered Terminal Units
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 “clogged” with filtrants the pressure drop will increase. This must be considered for replacement schedules depending on how much static pressure you have with the design of the unit.
Additional consideration would have to be given to the cost and potential problems associated with the… Read more