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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 »
ECM Fan Array – vs. 3 Phase Motor & VFD
We are using more and more ECM Motors and Fans in our applications (both new equipment and retrofit). There are a lot of good reasons to consider them in your ac designs. Below is a side by side comparison and seven good reasons to use ECM Motors and Fans. Permanent Magnets… Read more »
Latest News
Konvekta’s Zero Emission Solution! Summer DAC Outing a Blast! After several months of being apart due to COVID, we finally gathered in person for our annual summer outing. We enjoyed a bike ride, competitive cornhole tournament, delicious dinner and great talks and a lot of laughter around the fire. The DAC Team is stronger than… Read more »
Customer Satisfaction Survey
DAC Sales – Customer Satisfaction Survey Thank you for your business. DAC Sales is committed to providing the highest level of service and quality products. Please help us in our mission of continuous improvement by taking a few minutes to complete this brief, 5-question Customer Survey. We value your feedback and will use this information… Read more »
Custom Air Handling Unit Design | Freeze Block Coil Technology
A Freeze Block Coil is the Best Way to Prevent Freeze & Thaw Damage Freeze damage is the leading cause of premature HVAC coil failure. Frozen fluid coils can result in severe damage to the coil, system downtime, expensive repairs and/or replacement and in some cases flood damage throughout the building. This is a… Read more »
Case Study – Swegon Chilled Beams | Astra Zeneca, Waltham, MA
Swegon teams with Astra Zeneca to create a showcase project. A PARASOL case study where the many advantages of four-way air distribution convinced AstraZeneca to go for our ground-breaking comfort modules instead of the conventional two-way air distribution of chilled beams. New technology often requires two equally committed partners. The first is the developer… Read more »
Project Snapshot | High Plume Dilution Fans for Diesel Generator Exhaust
Project Name: Mass State Police Academy Owner: State of Massachusetts Project Application: Emergency Diesel Generator Re-entrainment Remediation Mechanical Engineer: Shekar Associates, Inc. Mechanical Contractor: Kleeberg Sheet Metal, Inc. Equipment: “Tri-Stack” High Plume Dilution Fan Manufacturer: Strobic Air Size: TS3S150A12 – 14000cfm, TS1S050A12 – 2100cfm DAC Sales Engineer: David Goodman The Problem: The new 911… Read more »
Energy Recovery Wheel | Purge Section
There are two ways that air can leak from the exhaust side to the supply side of a wheel: Cross-Flow Leakage – occurs when air leaks from the exhaust side to the supply side through the seals or any gaps in the construction. Carryover Leakage – occurs in rotary recovery wheels as the wheel rotates… Read more »
Energy Recovery Unit | Separate Control Panel Option
Separate Control Panel Option This is clever and a really nice feature that can be added to any Energy Recovery Unit (ERU) or Air Handling Unit (AHU). Just needs to be specified. I am not sure why we didn’t think of it. We saw this during a recent visit to Annexair. They can now include… Read more »