Back to Basics: Why ACH is Important in Healthcare Facilities

What is ACH you ask? And why is it important? Well, ACH stands for air changes per hour. With Covid-19 spikes continuing to occur and flu cases surging during its yearly occurrence, correct ACH is more important than ever. ACH is the measurement of how many times a certain volume of air in a space […]

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Are you choosing the correct flow meter?

Most buildings require some aspect of water flow and, often, BTU measurement. Several different flow sensor techniques can be used depending on need. These include water type, application, accuracy, required measurement, installation challenges, and cost effectiveness. Below is a table to help you determine which technique, product, and installation is most relevant for your project. […]

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Guidelines for Replacement of Old Fire and Smoke Actuators

For Belimo combination fire/smoke damper actuators intended for installation in accordance with National Protection Association Standard for Installation of Air Conditioning and Ventilating Systems, NFPA 90A, damper actuators must meet the construction and performance requirements in UL555: Standard for Fire Dampers and UL555S: Standard for Smoke Dampers. Often, customers replace damper actuators for varying reasons […]

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Application Tips: Determining Air Flow in Cubic Ft./ Min

To calculate Air Flow in Cubic Feet per Minute (CFM), determine the Flow Velocity in feet per minute, then multiply this figure by the Duct Cross Sectional Area. Air Flow in CFM (Q) = Flow Velocity in Feet Per Minute (V) x Duct Cross Sectional Area (A)

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Field Economizer Retrofit Guide

Is your economizer really working? Did you know, according to our market research, that as many as 70% of economizer systems installed may not be functioning at optimum efficiency today? Conditions such as faulty control setting, incorrect wiring, installation, or commissioning, or rusted or jammed air dampers could be restricting the ability to experience “free […]

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