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
Fan Powered Terminal Units – Model Series 35SXC Stealth XC
Acoustical Privacy in Exposed Ceiling Applications
Architectural designs with open offices and acoustical tile suspended ceilings often have relatively low sound level requirements to achieve “acoustical privacy” for the occupants. The acoustical design goals include controlling occupied space noise levels so that it is neither so loud as to interfere with speech or too quiet so that all intermittent sounds become a distraction. Acoustical specifications have included several measures including Octave Band Sound levels, NC (Noise Criteria, based on a tangent maximum referenced to a chart of average human response), RC (Room Criteria, the average is 500 thru 2000 Hz bands and a letter representing high or low frequency predominance) and DbA (an “A Scale” weighted Log Sum in all bands).… Read more
How Ceiling Diffusers are Selected
The ultimate goal of an air distribution system is to uniformly deliver conditioned air into a room. A good diffuser setup mixes the air in the room while maintaining comfort for as many people as possible. An ineffective setup can cause drafty air, dead zones without proper mixing, or excessive noise. While most engineers understand the basics of how to select and place diffusers, we often see mistakes that could be avoided with a better understanding of air diffuser design.
Selection Criteria
To select diffusers for a room, an engineer first calculates the required cooling or heating load from the local environment, construction, and ventilation requirements defined by ASHRAE 62.1. This standard defines the ventilation load, which is usually 3 times less than the cooling/heating load in… Read more
Fan Coil Units: High Capacity Horizontal
While the in-room horizontal fan coils units may be the highest volume product used in the industry due to the numbers used in hospitality, the high-capacity horizontal fan coil units are the most versatile. The span of sizes, options, and variants make these units suited for residential, office, & industrial applications. High-capacity refers to the larger sizes up to 4,000 CFM and the ability of the fans to handle 3/4" w.g. of static pressure. Both allow for more complex ductwork and air distribution than other designs. Learning how each of the components in the construction works together to deliver comfort will help select the best product for your application.
5 Consideration Variables
The previous article highlighted the five variables to consider when selecting a horizontal fan… Read more
Fan Coil Units: High Capacity Horizontal
While the in-room horizontal fan coils units may be the highest volume product used in the industry due to the numbers used in hospitality, the high-capacity horizontal fan coil units are the most versatile. The span of sizes, options, and variants make these units suited for residential, office, & industrial applications. High-capacity refers to the larger sizes up to 4,000 CFM and the ability of the fans to handle 3/4" w.g. of static pressure. Both allow for more complex ductwork and air distribution than other designs. Learning how each of the components in the construction works together to deliver comfort will help select the best product for your application.
5 Consideration Variables
The previous article highlighted the five variables to consider when selecting a horizontal fan… Read more
Fan Coil Units: In-Room Horizontal
Our previous article highlights the variables to consider when choosing a Horizontal Fan Coil design for a project. The highest volume unit type in the industry is the in-room horizontal fan coil unit. The units are ideal for hotel rooms, condominiums, and small offices. They are typically installed above a ceiling and supply directly to the room they serve. The air returns through a grille in the ceiling, either directly into the unit or through the plenum. This article will discuss how the units work, the options available for each unit, and the design considerations when choosing an in-room horizontal fan coil unit.
5 Design Variables
The previous article highlighted the five variables to consider when selecting a horizontal fan coil unit. The variables are capacity, static pressure,… Read more