Related Posts

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  Cambridge S-Series Preventative Maintenance Schedule

  Proper maintenance is essential to keep your Cambridge S-Series heating unit running efficiently and prevent costly repairs. This blog outlines a preventative maintenance schedule for your unit. Depending on whether your unit has filter sections, inspections should be done two or four times a year. In this guide, we'll cover crucial tasks like checking air filters, greasing bearings, inspecting belts, and more. By following these steps, you'll extend the lifespan of your equipment and optimize its performance, reducing energy costs and minimizing downtime. Let's get started on maintaining your Cambridge S-Series unit.  *Full maintenance procedures and instructions may be found in the applicable product tech manual. Suggested inspection Frequency:  2 times per year for units without filter sections  4 times per year for units with filter sections  Check the air filters: Clean these filters if necessary because dirty filters will reduce CFM and could damage the discharge air sensor.  Service the filters as needed based on the “loading” experienced. Clean filters typically start out with a pressure drop across the filters between 0.15 and 0.25” WC. Cleaning or replacement is generally required below the pressure drop increased by ...
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  Cambridge Info Bulletin - Moisture in Buildings

  In new construction, the primary source of moisture entering the building is most likely from the newly poured concrete slab. The National Ready Mixed Concrete Association (NRMCA) describes the ‘What’ and ‘How’ of concrete slab moisture in their 2004 Concrete in Practice publication CIP 28-Concrete Slab Moisture. Potential sources of concrete slab moisture include: The floor slab is in contact with saturated ground. Moisture moves to the slab surface via capillary action or wicking. Water vapor from damp soil will diffuse and condense on a concrete slab surface that is cooler and at a lower relative humidity due to a vapor pressure gradient. Residual moisture in the slab from the original concrete mixing water will move towards the surface. It may take anywhere from six weeks to one year or longer for a concrete slab to dry out to an acceptable level under normal conditions. Reference: Bruce Suprenant,  Concrete Construction, November, 1997. The topic is also dealt with in depth by the U.S. Environmental Protection Agency in their publication EPA 402-F-13053. Moisture Control Guidance for Building Design, Construction and Maintenance. December, 2013. Topics ...
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  Commercial and Industrial Freeze Protection | The Cambridge Spec-Air Series

  Developers working with speculative warehouses and buildings that need ventilation and minimal heat often find themselves producing more heat than is necessary. The Cambridge Spec Air Series is exactly what you need when your goal is not to provide comfortable heating, but to provide the freeze protection and building ventilation required for a new warehouse or speculative building.  The real need is to provide proper airflow with commercial and industrial freeze protection solutions that meet the building code requirements. Spec buildings and warehouses, such as storage facilities or rentable unoccupied spaces, do not need comfortable heating. That’s why our Spec Air Series is designed to provide freeze protection up to 45 degrees Fahrenheit.  Even though there won’t be anybody inside the speculative buildings, it’s important to have proper building or warehouse temperature control to prevent freezing pipes. Keeping your building in the best shape possible is key to finding a tenant to rent the facility. The Spec Air Series Solutions units are roof-mounted and are designed to pull in 100% outside air. No additional duct work is needed since the discharge ...
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  How Stainless Steel HVAC is Transforming the Car Wash Industry

  The Car Wash Industry’s Heating Challenge—And How Stainless Steel HVAC is Changing the Game  The car wash industry is booming, reaching a record valuation of $14.21 billion in 2020. But with rapid growth comes significant challenges—particularly when it comes to heating. Car wash owners face high humidity, exposure to harsh cleaning chemicals, and constant temperature fluctuations from open tunnel doors. Traditional heating systems struggle to keep up, leading to premature equipment failure, inefficient energy use, and higher operational costs.  At AHR 2025, Dave Binz, Cambridge Air Solutions VP of Engineering, presented on these challenges and shared how our stainless steel heating enhancement has become the go-to solution for leading car wash chains. By developing HVAC technology that resists corrosion and maximizes energy efficiency, we strive to keep car washes open and profitable—no matter the weather. The Challenges of Heating a Car Wash Environment Car wash facilities are uniquely challenging to heat due to several environmental factors: High Humidity & Condensation – Constant water exposure increases corrosion risks for HVAC systems. Harsh Cleaning Chemicals – Detergents, surfactants, and presoaks contain corrosive compounds that degrade equipment. Temperature Fluctuations – ...
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  The Advantage of Direct-Fired HTHV for Hydrogen Mixing

  Why Direct-Fired HTHV is the Best Choice for Hydrogen Mixing Efficiency In the evolving world of hydrogen as a fuel, how it’s mixed and burned can make all the difference in efficiency and safety. Our High-Temperature Heating and Ventilation (HTHV) systems leverage direct-fired technology, which proves to be particularly advantageous in hydrogen mixing. Here's why. The direct-fired component is the key. Unlike many systems that use a multi-stage mixing zone—where part of the fuel and air are mixed in stages—our approach is different. When you mix even a small amount of hydrogen, it behaves differently than natural gas, often challenging traditional systems, but our direct-fired method is robust enough to handle these challenges without the need for complex techniques. Our system is as straightforward as it is effective. We simply force a mixture of air and gas and ignite it, much like lighting your gas grill. This simplicity is our strength. We don’t rely on complicated mechanisms that other products might use, allowing our system to be more resilient to variations in fuel mixtures. When discussing hydrogen combustion, terms like flashback, lift-off, and ignition ...
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  Whoever heard of burping a building?

  This tech blog was written by our engineer Bill Meyer, of the Cambridge Air Solutions Applications Engineering team. “Spec” buildings… You gotta love ‘em. We, at Cambridge are frequently involved with heating “spec” buildings. You know how it goes: a developer puts up the shell, pours the concrete slab, heats the building to a minimum temperature the closes it up with no plans for ventilation. At some point in the future, the developer signs up a tenant and proceeds with the tenant fit-out. That is where our story begins. The 200,000 sq. ft., 32’ high, uninsulated tilt wall building in Kansas City was erected in 2017 but was not occupied until 2019. In February 2020 our Regional Sales Manager learned from the Property Manager that the tenant was experiencing problems: condensation on the walls and the heaters were not maintaining the desired 55°F space temperature (although the design temperature was 50°F). A Cambridge Applications Engineer was asked to follow up to see if there was anything we could do to help. Cambridge had participated in a “Building Burp Test” for a similar building ...