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How To Become An HVAC Engineer
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Do not be fooled by our NY-Engineers.Com is your best option if you are searching for Full Service Heating Cooling Air Conditioning Furnace (HVAC) Engineering Firm in Chicago Illinois. We are not only an HVAC Company in or near Chicago but also a leading provider of Sprinkler Design Engineering services near East Chicago. Call us at (+1) (312) 767-6877

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As of late Many people have been visiting the New York Engineers website in search of Fire Protection Engineering in Chicago. This is due primarily due to the reputation we have develop in this kind of work. Nevertheless, many building managers from Bridgeview to South Holland, do not know that NY Engineers is also a top contender for anyone looking for HVAC Chicago.

The pursuit of cost effective buildings involves energy-efficient HVAC system design. This may include systems for domestic water heating, architectural enclosure, HVAC, lighting, and vertical transportation. The loads for your HVAC systems can come primarily from 5 different places including lighting (cooling), the building envelope (cooling and heating), ventilation (cooling and heating), equipment for program use (cooling) and occupancy (cooling).
The ventilation load might be a function of either the instruments necessary in order to introduce it in a space and control contaminant concentration or the quantity of folks which will fill the area. In the majority of climates within the eastern and southwestern areas of the US, to minimize outter air-flow helps you to save energy whenever the surface air is either humid and warm or very cold.
Managing the ventilation rate will likely be dependant on occupancy which is known as a form of demand control ventilation. This really is a common type of energy conservation tatic that is utilized for homes with intermittent or crowded occupancy. Having heating and cooling loads reduced as low as possible can be carried out by utilizing a very high performance building envelope, occupancy sensors, and high performance lighting that apply daylight response of lighting controls.

Chicago HVAC Engineers vs HVAC Technicians

When you’ve ever discussed the distinction between a HVAC Technician versus HVAC Engineers, then read on:

Chicago HVAC engineers will be the people that manage the installation of air-con systems for both commercial and residential buildings. They spend a lot of their work in offices doing more impressive range management and preparation of installations however they do also see job sites every now and then.

In contrast, HVAC technicians have a tendency to do a lot of the hands-on work  that deals with repair and maintenance. A HVAC technician may deal with an engineer to complete several of the installation work, particularly for smaller jobs. Generally HVAC techs do a lot more travel and could spend considerable time identifying leaks, changing filters, doing recharges or decommissioning old and outdated systems that utilize old refrigerants.

HVAC engineers might have the opportunity to make more decisions about systems that are being used, and they also are the folks that would offer advice about the most sensible refrigerants and which systems would work best with a greater building. In the trade, there exists some challenge between ‘the suits’ and ‘the ones that will get their hands dirty’, but the two jobs require an effective understanding of how air conditioning is proven to work. As of late many Internet users have been getting to the NY-Engineers.Com website looking for things like HVAC in Chicago. However, the goal of our company is to be the to go to organization for those searching for a HVAC Contractor in or near Chicago and or any of our other services including Sprinkler Design Engineering services. We ask that anybody searching for more details about our Heating Cooling Air Conditioning Furnace (HVAC) Engineering Firm in Chicago Illinois takes a look at our Value Engineers blog.

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A Construction Engineers Guide to Selecting the Right Type of Electrical Raceway: Metallic Conduit Options

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Electrical conductors are subject to stringent installation requirements, established in the NFPA National Electrical Code and the NYC Electrical Code, to which construction engineers must abide. There are many logical reasons for this.

A conductor in the open is vulnerable to physical damage, and at the same time it represents a high risk of electric shock or fire. Therefore, conductors must have both electrical insulation and physical protection; unless a conductor is armored or sheathed, physical protection is typically provided by electrical conduit.

The different types of electrical conduit in the market differ in terms of material used and flexibility: conduit can be either metallic or non-metallic, as well as rigid or flexible. Although each type is intended for different applications, there is some overlap between approved uses. Therefore, design engineers must often choose between many valid options for a given application. Sizing is very important: undersized conductors cannot accomplish their function, but oversized conductors represent a waste of capital.

This article will provide an overview of the main types of metallic electrical conduit and their applications. Keep in mind this is a general guide, not a replacement for NFPA and NYC codes. The technical requirements explained here are very general – make sure you check the applicable codes before specifying conduit in any project. There are five main types of metallic conduit, which are summarized in the following table:

AbbreviationFull Name
EMT
RMC
IMC
FMC
LFMC
Electrical Metallic Tubing
Rigid Metal Conduit
Intermediate Metal Conduit
Flexible Metal Conduit
Liquidtight Flexible Metal Conduit

Electrical Metallic Tubing (EMT)

EMT is a lightweight but rigid metallic raceway option. If offers less mechanical protection compared with IMC and RMC, but it has the advantage of being easy to bend, which is beneficial when construction engineers must build the electrical raceway around obstacles or corners. The most commonly used EMT materials are galvanized steel and aluminium.

Since EMT is not normally threaded at its ends, fittings use perpendicular screws or threaded compression unions. Set-screw fittings are cheaper, but compression fittings offer a tighter connection.

Electrical codes do not allow EMT in applications where electrical raceway is exposed to significant physical damage or corrosion, or in occupancies classified as hazardous locations.

Rigid Metal Conduit (RMC)

RMC is the heavy-duty option, with the thickest walls among all metallic conduit options. This type of conduit is the standard choice for demanding environments, offering both mechanical and chemical resistance. RMC is normally made from galvanized steel, stainless steel, red brass or aluminium. All types are suitable for corrosive environments, but additional protection may be required in the case of aluminium RMC.

RMC offers far greater mechanical resistance than EMT, but this comes with a much higher price tag. Working with RMC also involves more technical complexity, requiring specialized equipment for cutting and threading.

Intermediate Metal Conduit (IMC)

As implied by its name, IMC is the intermediate option, thicker than EMT but thinner than RMC. However, IMC uses a high-strength steel alloy to offer physical protection comparable to that of RMC, in spite of the reduced wall thickness. IMC can be used in the same applications where RMC is allowed, and it only has one limitation: while RMC trade sizes range from ½” to 6”, IMC only goes from ½” to 4”. Therefore, you must use RMC in heavy-duty applications where the specified conduit size exceeds 4”.

It is important to note that, although IMC is thinner than RMC, the external diameter is the same for both types of conduit. As a result, IMC has slightly more internal space to handle conductors.

Flexible Metal Conduit (FMC) and Liquidtight Flexible Metal Conduit (LFMC)

In the electrical trade, FMC is normally called “greenfield” or “flex”. The body of FMC uses an interlocked steel spiral to offer decent mechanical protection but also flexibility. FMC is typically used when raceway ends require flexibility for connection, or when a connection to vibrating equipment that may cause fatigue failure in a rigid connection. LFMC is basically FMC with a liquid-tight coating, typically made from a thermoplastic material.

Additional Recommendations from Construction Engineers

Keep in mind that conduit diameter is determined by conductor diameter, which in turn is determined by the load on the circuit. Therefore, energy efficiency measures can lead to conductor and conduit savings in new constructions. The savings from using a smaller conductor and conduit diameter may not be noticeable for a single branch circuit, but the savings add up in a large project such as a high-rise building.

MEP design software is also a very powerful tool to reduce conductor and conduit costs. When circuit routes are specified as short as possible, material requirements are reduced, along with the associated man-hours from associated construction engineers and others.

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