Hiring a HVAC Engineering Firm in Old Norwood Chicago

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Looking for a top rated HVAC Firms in Chicago? The one to go to is NY Engineers. Not only for HVAC Firms in Chicago but also Architectural Engineering and Sprinkler Engineering near Old Norwood Chicago. Call us at (312) 767.6877

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The majority of property owners throughout Central Islip, NY already know that NY Engineers is the engineering firm to contact when you are searching for Mechanical Engineering in NY. What a lot local property owners have yet to realized is that New York Engineers is also your best choice if you’re searching for HVAC Engineering services in Old Norwood Chicago, IL.

Contracting a HVAC Company in Old Norwood Chicago requires the opportunity to investigate and acknowledge what’s necessary for your setup. Each individual is going to be different in terms of the contracting procedure and it’s best to think about the next attributes.

1) Capability: A good company will invariably have accomplished professionals onboard to help you with HVAC needs. These professionals are not just skilled but are likely to have a number of expertise in the industry. This keeps everything streamlined, simple, and as efficient as you require them to be. Clients can seem more comfortable with a specialist available to assist.

2) Range of work: Take a look at their track record to note exactly how they’ve done in the past. This would help shed light on if the company is a avid team that achieves good results. If you find complications with their portfolio then it’s gonna sort to your put in place. Center on this without delay!

These characterize the methods for getting a top-tier firm and ensuring the remedy is top notch. Otherwise, the firm could find themselves creating more issues than answers. Start with these guidelines and write a simple list to have the procedure easier.

That is why a lot of engineers are employed as consultants while they get practice. There, they are only accountable for the following element in the design process and may offer insight about what works or what doesn’t.  Most HVAC systems are started with the help of an Old Norwood Chicago HVAC design engineer.

Core HVAC Design Engineer Duties

An HVAC engineer in Old Norwood Chicago is going to be given a checklist of various tasks based on the firm, its needs, and how the assignment evolves.

On the whole, the HVAC design engineer duties are likely to include a variety of tasks including fabricating different HVAC systems. Every duty will be unique as customers bring modified requests. These requests can incorporate the dimesions of their system, how it is gonna perform, and the performance metrics they are after with a brand new HVAC system.

A certified Old Norwood Chicago HVAC engineer will almost certainly sit back, understand these needs, and prepare an entire HVAC system with high-quality design tools. Everything is kept in mind in this process and that is what an HVAC design engineer is expected to complete. Along with designing the HVAC system, the contractor has to make sure the installation is carried out properly and fits consistent with precisely what the client needs.

That is why a lot of engineers are employed as consultants since they get experience. In those situations, they might be only responsible for the following part in the process and may provide insight about what works or what doesn’t.  Most HVAC systems are started by using an HVAC design engineer in Old Norwood Chicago. There is only so much you can save this page if you would like more details about the HVAC Engineering services in Old Norwood Chicago, IL by NY Engineers you should check out at our Old Norwood Chicago Energy Modeling blog.

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Advantages of Electronically Commutated Motors in Electrical Engineering

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Electronically commutated motors (ECMs) can achieve significant energy savings in electrical engineering applications where fractional horsepower is required. Although NEMA Premium Efficiency motors with variable-frequency drives provide the most efficient solution to drive equipment above 1 hp, induction motors are outclassed by ECMs as the rated horsepower is reduced.

What is an Electronically Commutated Motor?

Although ECMs are designed to run with an AC power supply, it is important to note they are actually direct-current motors with permanent magnets on their rotor. Unlike conventional DC motors, which create a rotating magnetic field with a combination of brush contacts and slip rings, ECMs achieve the same effect with a voltage rectifier and an electronic control circuit. As a result, the friction and sparks associated with brush contacts are eliminated, and this is one of the reasons why ECMs are so efficient. They also have a longer service life than brushed motors, since the wear associated with sparks and friction is eliminated. Compared with other common types of fractional horsepower motors, ECMs are the top choice in terms of efficiency:

  • Shaded-pole motors are very common and more affordable, but their efficiency is very poor, going below 20% in some cases.
  • Permanent-split capacitor (PSC) motors have an average efficiency of 40%, which means they outclass shaded-pole motors. In terms of efficiency, they are an intermediate option between shaded-pole motors and ECMs.
  • ECM efficiency is normally above 60%, which means they consume one-third of the energy used by shaded-pole motors on average.

ECMs can also be manufactured with built-in speed control circuits, allowing them to operate at reduced speed without relying on an external VFD. It is also important to note that ECMs do not suffer a drastic reduction in their efficiency when operating below rated RPM. Fixed-speed ECMs are also available for applications where speed control is not necessary.

Electronically Commutated Motors in Electrical Engineering Applications

ECMs are normally the most efficient option in fractional horsepower applications, but they tend to deliver the highest savings when used in air-conditioning and refrigeration systems. Being more efficient that shaded-pole and PSC motors, they also dissipate less heat, and the reduced heating effect helps AC and refrigeration systems operate more efficiently. This effect applies for all air-conditioning or refrigeration components that are found inside the conditioned space, such as air handlers and evaporators.

As an example, assume a cold-storage room has an evaporator unit with five shaded-pole motors, consuming 900W each. They are replaced with ECMs that only consume 300 W each.

  • 600 W are saved per motor, for a total of 3,000 W.
  • However, these 3,000 W are also subtracted from the refrigeration load. If the system operates with a coefficient of performance of 3, an extra 1,000 W of electric power are saved.
  • In other words, this upgrade saves 3 kW in motor power and 1 kW thanks to refrigeration load reduction.

Keep in mind this is just a simple example, and each electrical engineering project requires a detailed analysis to know the exact savings. However, the heating reduction benefit applies for all cases where ECM motors are deployed in air-conditioned or refrigerated locations.

The brushless design of ECMs makes them quieter than their less efficient counterparts, which also provides a comfort advantage. In business applications, the silent operation of ECMs helps employees concentrate better. ECMs are also lighter than other types of fractional horsepower motors, which makes them easier to install.

Electronically Commutated Motors in Ventilation Systems

As previously stated, shaded-pole and PSC motors are inefficient. Also, three-phase motors with VFDs are impractical for fractional horsepower applications, unable to offer the efficiency that characterizes them in larger systems. Ventilation systems represent an excellent opportunity to deploy ECMs, for two main reasons:

  • Fans with fractional horsepower are common, which means they are often driven by shaded-pole or PSC motors.
  • Many fans have intermittent operation, which represents a chance to use ECMs running at reduced speed. For example, running a fan 80% of the time saves 20% of the energy, while running it at 80% speed saves nearly 50%.

ECMs are a highly recommended upgrade for furnace fans, since they can achieve a much more uniform temperature distribution with their speed control, in addition to offering the energy savings that characterize them.

Payback Period of ECM Upgrades

Like with many energy efficiency measures, the financial benefit of an ECM upgrade changes depending on project conditions. The project payback period can only be calculated with precision after a detailed analysis by a professional energy consultant, but in general the following results can be expected:

  • Replacing shaded-pole motors normally yields a faster payback period than replacing PSC motors, since the efficiency gain is higher. Of course, there can be exceptions; replacing a PSC motor that is used frequently may yield higher savings than upgrading a shaded-pole motor that is only used moderately.
  • ECMs can also be an attractive option in appliances that require speed control. Other types of motors may suffer a drastic efficiency reduction at partial speed.
  • As previously mentioned, the energy savings are higher when ECMs are deployed in air-conditioned or refrigerated spaces.

The financial return of an ECM upgrade can also be enhanced if there are incentive programs at the project’s location. The incentive is calculated based on yearly energy savings, at a rate of $0.16/kWh.


Electronically-commutated motors (ECMs) can achieve significant energy savings in fractional horsepower applications, especially when they replace shaded-pole motors. However, like with any energy efficiency upgrade, professional guidance is highly recommended when defining the project scope and specifications.

When upgrading to ECMs, the return on investment is higher in some cases, and it others the payback period may be too long to justify the upgrade. Ideally, upgrades should focus on where the highest return is obtained from each dollar spent upfront. Recruit the help of an electrical engineering expertise to help you properly apply the information shared in this article to your project.

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What Can Our HVAC Engineers in Old Norwood Chicago Do For You? When you re searching for a fast responding HVAC Firms in Chicago? Your best bet is to reach out to is NY Engineers. Not only for HVAC Chicago but also Architectural Engineering and Protection Engineering near Old Norwood Chicago. Contact us at (312) 767-6877 Since 2011 the majority of real estate investors throughout North Valley Stream, NY already know [...]