Posts Tagged: hvac

Needlepoint Bipolar Ionization (NBPI) Increases Filter Efficiency to Fight COVID-19

How to save on expensive cost of up-sizing filters   Needlepoint Bipolar Ionization technology produces positive and negative ions that travel with the supply air into the space. In the space, these ions cause particles like dust, dander, pollen, bacteria and virus to attract and stick together (agglomeration). This action significantly increases the effectiveness of existing… Read more »

Reducing Spread of COVID-19 with HVAC System Retrofit

Using GPS Needlepoint Bipolar Ionization to Retrofit and Upgrade Existing HVAC System The challenge for reducing the spread of COVID-19 has two categories. One of them is our daily behavior which includes social distancing, wearing masks, cleaning, and sanitation as recommended by CDC. The other category is office lay out, occupant flow and HVAC improvements…. Read more »

DAC Proudly Representing Global Plasma Solutions (GPS) in the Fight Against COVID-19

Used in large-scale ventilation systems worldwide, bipolar ionization could be a secret weapon in the war against COVID-19 Bipolar ionization technology releases charged atoms that attach to and deactivate harmful substances like bacteria, mold, allergens, and viruses. It first arrived in the US in the 1970s as a tool to control pathogens in food manufacturing…. Read more »

Global Plasma Solutions (GPS) Bipolar Ionization Destroys Viruses

GPS’ Bipolar Ionization Destroys Viruses Especially during times like these, we are excited to represent Global Plasma Solutions, a leader in bipolar ionization. GPS features technology that destroys viruses! John Oxford is UK’s top expert on influenza and Emeritus Professor of Virology at the University of London.  His work on the 1918 strain of influenza (Spanish flue)… Read more »

Annexair Unveils First Ever Biocomposite Ventilation Unit

Recycled plastic water bottles promotes sustainable air conditioning! Annexair has unveiled a brand-new eco-friendly ventilation system: a Biocomposite central air unit made of recycled plastic water bottles! The Biocomposite unit was unveiled during the Expo AHR in Orlando, Florida, and will be competitively priced on the HVAC market. This new product was thoughtfully designed in-house after… Read more »

Project Snapshot: Alkermes

Project Name: Alkermes  Architect: Elkus Manfredi Archtects Mechanical Engineer: AHA Consulting Engineers Mechanical Contractor: Hamel & McAlister Equipment: (2) Custom Penthouse AHUs, (2) EAHUs, (1) Konvekta Heat Recovery Skid (6) MK Plastics High Plume Dilution Fans, (2) 450 ton Oil-Free Chillers Manufacturer: Konvekta, Cambridgeport, MK Plastics, Smardt, Ingenia Size: 140,000 CFM Supply / 140,000 CFM Exhaust… Read more »

Designing Mega-AHUs

The advent of fan arrays along with the increased cost competitiveness in the custom air-handling unit (AHU) market has given rise to a new AHU design option: very large AHUs, or mega-AHUs, designed for over 100,000 cfm (50 000 L/s). Here are the advantages and disadvantages of mega-AHUs vs. multiple floor-by-floor AHUs for high-rise buildings and reviews design considerations… Read more »

Chilled Water Coil – Circuiting Made Easy

Chilled Water Coil – Circuiting Made Easy (Credit to Guest Blogger: Dan Jacobs, Capital Coil & Air) Circuiting a chilled water coil is one of life’s great challenges in the coil business. You’re bound to run across folks with years of experience in the industry that can not effectively explain this concept. While not the most exciting of… Read more »