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 »
Posts Tagged: fans
Coils — Repair or Replace

Coils – To Repair or Replace (Credit to Guest Blogger: Dan Jacobs, Capital Coil & Air) There are multiple reasons why coils can fail prematurely. Sometimes, they simply freeze and can never be repaired. Other times, the coil was selected incorrectly, which in turn, made the coil significantly under-perform. Many times, there is substantial corrosion or something… Read more »
Advanced Manufacturing Process

Excellent Systems Lead to Excellent Products Ingenia Technologies is an industry leader in custom air handling unit production. A state-of-the-art manufacturing plant and leading edge engineering technology are utilized to provide creative custom air handling unit solutions and high quality product. Take a look at what it takes to make a consistently high quality product:… Read more »
ASHRAE Design Guide for Dedicated Outdoor Air Systems (DOAS)

Are you thinking about designing a dedicated outdoor air system (DOAS)? Make sure you have comprehensive guidance from industry experts to simplify and optimize DOAS design, installation, operation, and management. The ASHRAE Design Guide for Dedicated Outdoor Air Systems consolidates existing material to focus on the major issues while referring to supplemental sources for more… Read more »
Selecting High Plume Dilution Fans
What to Consider When Selecting Fans For Your Application Guest Blogger Keith Lins, MK Plastics When selecting a fan, I prefer to do so in a deductive fashion. In other words, try to understand everything you possibly can about the nature of the application and the details about what the fan is going to be doing…. Read more »
High Plume Dilution Fans | Now with Composite Plenums
K-Kore™ Composite Air Plenums and Energy Recovery Plenums The perfect product to provide years of trouble-free operation, K-Kore Composite Air Plenums and Energy Recovery Plenums use the latest technology in composite construction materials that renders steel construction obsolete. Our patent-pending Fiberglass Reinforced Plastic (FRP) assembly will provide the ultimate in durability and equipment life. K-Kore… Read more »
Coils — Construction vs. Performance

Coils – Construction vs. Performance (Credit to Guest Blogger: Matt Jacobs, Capital Coil & Air) If you have ever dealt with commercial HVAC coils, you have probably come across numerous “industry terms” with little to no explanation as to what these terms actually mean. To further confuse you, some verbiage is specific to the actual construction of… Read more »
Custom Air Handling Units | 4 Reasons to use Direct Drive Fans
We do our best to design the most Energy Efficient HVAC systems. If possible, we will always pick a Direct Drive Fan over a Belt Driven Fan for a Custom Air Handling Unit. Here are 4 Reasons why we choose Direct Drive Fans: Energy Savings: Eliminating drive losses from the belt and pulley can improve… Read more »