How Does Eddy Current Testing Work?

Eddy current testing, or ECT, is commonly used in manufacturing and service industries that use sheet metal, tubing, and other thin metal products for critical operations. In short, eddy current testing uses electromagnetic fields to identify cracks, metal thickness and hardness, heat damage, conductivity, and other characteristics of metal surfaces without damaging the test material. How Does Eddy Current Testing Work? If you think your facility might benefit from ECT, you might be wondering … [Read more...]

How Does a Rooftop Unit Work?

Packaged rooftop units are among the most common HVAC systems for commercial buildings in Chicago. They are cost-effective, pre-engineered, and adaptable for many applications. Learn more about how a rooftop unit works to keep your building cool in the summer and warm in the winter. What Is a Rooftop Unit? The term “rooftop unit” is synonymous with “packaged unit” because packaged units are most often installed on the roof. However, they can also be slab-mounted on the ground. When all air … [Read more...]

Water Cooled vs Air Cooled Condensers

Condensers see use in various commercial applications, though you’re likely most familiar with the ones that reside in your HVAC cooling system. The component’s primary objective is to essentially exchange heat (more specifically exchange heat due to refrigerant compression) in the loop of your air conditioning system, rejecting hot air in one of two methods. Method one is by way of air (air-cooled condenser), and two is by water (water-cooled condenser). Which of these two your HVAC or heat … [Read more...]

How Do Cooling Towers & Chillers Work Together?

A chiller is a large piece of industrial equipment located inside a building, often in the basement or another utility area. It contains two primary cylinders: an evaporator and a condenser. There are many different types of chillers, including centrifugal, reciprocating, screw driven, and absorption chillers. A cooling tower acts as a giant heat exchanger. It sits on the roof of the building and blows ambient air across a coil to remove heat and exhaust it outside. Together, chillers and … [Read more...]

The Latest Technology in Data Center Cooling

Today’s data centers work harder than ever. Whether you run a small server closet or a robust data center, it’s vital to keep your electronic equipment cool because overheating can cause crashing and hardware damage. Here’s a look at some of the latest technology in data center cooling that might interest you. Geothermal Cooling Traditional air conditioning moves heat from inside a data center and exhausts it to the exterior, leaving a cooler temperature behind. However, a geothermal heat pump … [Read more...]

Benefits of Commercial HVAC Maintenance

Your heating and cooling equipment works tirelessly every day to keep your commercial building in Chicago comfortable, no matter what the weather is like outside. Do you give your HVAC system the attention it deserves? At Murphy & Miller, we recommend tuning up your cooling equipment in the spring and your heating system in the fall. Here’s how you benefit when you follow this yearly preventative maintenance schedule: Lower Operational Costs When your equipment is tuned up, it operates … [Read more...]

Benefits of Commercial Boiler Maintenance

The boiler in your commercial building works hard to provide the heating required to sustain a comfortable interior. As with all mechanical equipment, the need for repair crops up occasionally, but you should invite a commercial HVAC contractor to your facility more often than just to conduct repairs—your boiler also requires routine tune-ups. Before you decide to skip this important maintenance task, consider all the benefits you’ll miss. Reduced Risk of Breakdowns You have a business to … [Read more...]

Six Signs That You Need to Replace Your Commercial Heater

Is the bitter winter here in Chicago making your commercial or industrial facility feel colder than usual? Your heater should be able to keep up, but if the system is getting old, the time for heating replacement could be near. When the time comes, rely on Murphy & Miller for the job. Industrial heater replacement is just one of the commercial heating services we offer our customers in Chicago. When Is it Time to Replace Your Commercial Heater? Here are the top six signs that you need to … [Read more...]

Deep Freeze in Chicago – CADD helps provide innovative solution to chiller installation

Creative thinking and meticulous planning are required when your firm is called upon to install two 800-ton chillers on top of a fifteen-story building in a busy downtown location. Murphy & Miller, Inc. (Chicago, Illinois) passed this logistical stress-test by innovatively employing computer-aided design and drafting (CADD) technology in a challenging air-conditioning retrofit for Carson’s Department Store in downtown Chicago. With over 80 years in the business, Murphy & Miller ranks … [Read more...]