HVAC Talley's Corner Chicago2018-11-19T06:56:01+00:00

HVAC Talley's Corner Chicago | Expert Energy Efficient System Designs

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Don’t be misled by the name New York Engineers is your best bet if you are searching for Full Service Air Conditioning, Heating & Cooling (HVAC) Engineering Firm in Chicago Illinois. We’re not only an HVAC Chicago but also a leading provider of Sprinkler Engineering services throughout Talley's Corner Chicago. Contact us at 312 767-6877

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Recently huge crowds have been browsing our site in search of Value Engineering in the Chicago area. That is due because of the following we have develop in this kind of work. Nevertheless, many building owners from Bridgeview to Winfield, do not know that NY-Engineers.Com is also the ideal choice for anyone searching for HVAC Chicago!

The quest for energy-efficient buildings involves power efficient HVAC system design. This will likely include systems for architectural enclosure, domestic water heating, lighting, HVAC, and vertical transportation. The loads for that HVAC systems should come primarily from five different sources including lighting (cooling), the building envelope (cooling and heating), ventilation (cooling and heating), equipment for program use (cooling) and occupancy (cooling).
The ventilation load will be a purpose of either the mechanisms required to be able to introduce it in a space and control contaminant concentration or the quantity of people that may use the space. In virtually all climates within the eastern and southwestern parts of the usa, to lower outside air flow can save energy whenever the outer air is either warm and humid or very cold.
Managing the ventilation rate will be based on occupancy which is known as a type of demand control ventilation. This really is a common type of energy conservation plan which is used for homes with intermittent or heavy occupancy. Having heating and cooling loads reduced to a minimum can be accomplished by making use of a high performance building envelope, occupancy sensors, and performance lighting that employs daylight response of lighting controls.

Chicago HVAC Engineers versus HVAC Techs

If you’ve ever discussed the distinction between a HVAC Engineers vs HVAC Technicians, then read on:

HVAC engineers are definitely the folks that watch over setting up of air-con systems for residential and commercial buildings. They spend lots of their work in offices doing higher-level organization and arranging of installations but they do also see job sites every now and then.

In contrast, HVAC technicians in Chicago tend to do a lot of hands-on work  that deals with maintenance and repair. A HVAC technician may work with or for an engineer to accomplish a few of the installation task, specifically for smaller jobs. In general HVAC technicians do a lot more travel and might spend time and effort changing filters, identifying leaks, doing recharges or getting rid of old and outdated systems that utilize old refrigerants.

HVAC engineers may have a chance to make more decisions about systems that are employed, and so they would be the people who would offer advice about by far the most sensible refrigerants and which systems would best suit a much bigger building. In the industry, there is certainly some rivalry between ‘the suits’ and ‘the ones which get their hands dirty’, but both jobs require an excellent knowledge of how air-con works. As of late a lot of people have been visiting our sites looking for things like HVAC Chicago Bar. Nevertheless, the goal of our company is to be the number one choice for anyone looking for a HVAC Chicago and or any of our other services including Sprinkler System Engineering services. We ask that everybody looking for additional info about our Heating & Air Conditioning (HVAC) Engineering Firm in Chicago Illinois visits at our Engineers Reports blog!

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MEP Engineering in Upgrading Space Cooling Systems for Multifamily Buildings

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Most space cooling systems are powered by electricity, but some of the larger buildings also use absorption chillers powered by natural gas or district steam. Only space heating, plug loads and lighting consume more energy than space cooling in NYC.

There is a significant opportunity for MEP engineering to improve cooling efficiency in the multifamily residential sector, where almost half of all buildings use inefficient air conditioning systems:

  • Window-type air conditioners
  • Through-the-wall air conditioners
  • Packaged terminal air conditioners (PTAC)

These three types of space cooling systems have the same disadvantage: they require openings in the building envelope, which increase heat gain during the summer and heat loss during the winter. As a result, these AC units are not only inefficient themselves, but they also increase the load on space heating systems.

Space cooling systems in office buildings are generally more efficient, since the most common technologies used are direct expansion (DX) units and electric chillers, both of which are much more efficient MEP engineering solutions than window-type, through-the-wall and PTAC units.

Upgrading Space Cooling Systems in Individual Dwellings

Deploying centralized space cooling systems in existing multifamily buildings can prove challenging, since the upgrade can be highly disruptive for tenants and the allocation of space cooling expenses also becomes more complex. The cost of running a central AC system cannot be split equally because usage varies by tenant, and space cooling electricity cannot be metered individually if the system distributes chilled water or cool air.

However, there are also individual space cooling systems that offer a much better efficiency than window-type, through-the-wall and PTAC units.  Two of the most promising options are mini-split air conditioners and heat pumps.

A mini-split air conditioner gets its name from how the system is configured. An internal evaporator unit cools indoor air and circulates it with a built-in fan, while an external condenser unit rejects heat. The two components are just connected with insulated refrigerant lines, which eliminate the large opening required in older system configurations.

Mini-split heat pumps are also available, offering reversible operation to deliver space cooling in the summer and space heating in the winter. A heat pump consolidates two pieces of equipment as one unit, making it an attractive upgrade for dwellings that use inefficient space heating systems such as electric resistance heaters.

The cooling efficiency of split-type air conditioners and heat pumps is normally indicated by the Seasonal Energy Efficiency Ratio (SEER), a ratio of cooling output in British Thermal Units to electricity input in watt-hours. The SEER can be compared with the MPG value of a car (miles per gallon), where a higher value translates into a lower operating cost.

There is also an efficiency metric called the Energy Efficiency Ratio (EER), which has the same units. The difference is that the SEER considers the entire cooling season, while the EER is for test conditions defined by the Air-Conditioning, Heating and Refrigeration Institute (AHRI). In the case of heat pumps there is also a Heating Seasonal Performance Factor (HSPF), which is the ratio of heating output in British Thermal Units to electricity input in watt-hours.

Mini-split systems have  a remarkable efficiency advantage when compared with conventional electric heating and cooling options. Assume a window-type air conditioner and a resistance heater are replaced with a heat pump, having a SEER of 18 and HSPF of 9. In this case, space cooling savings of 50% or more can be expected, while heating savings exceed 60%.

Rebates for Air Conditioning Upgrades

In addition to delivering superior cooling efficiency, mini-split systems may be eligible for cash rebates from your utility company. Rebates improve the financial performance of air-conditioning upgrades. Since the upfront cost of the upgrade is reduced, the return on each dollar spent is increased.

MEP Engineering Recommendations Before Upgrading Space Cooling Systems

When an AC unit that crosses a wall or window is replaced with a mini-split unit that does not, the cooling load is reduced because a large gap in the building envelope is closed. The upgrade is also a good chance to check if there are no other leaks, especially around windows and doors. This increases the energy savings from a space cooling upgrade, since the new unit is not only more efficient, but is also subject to a reduced load.

In dwellings that use incandescent lighting, it is also possible to reduce the cooling load by upgrading to LED lamps. Consider that a 60-watt incandescent bulb can normally be replaced with a 10-watt LED bulb. If 10 of them are replaced, there are 500 watts less of heat to handle, equivalent to slightly above 1,700 BTU per hour.

Window-type, through-the-wall and PTAC units only have one advantage in terms of performance: they provide a constant supply of fresh outdoor air.

Mini-split units are unable to provide ventilation due to their system configuration, so it is important to verify that the existing ventilation system is sufficient after removing the previous AC unit. Ventilation systems are normally designed to be self-sufficient, but getting a professional opinion is recommended nevertheless; poor ventilation leads to various health issues.

Conclusion

Window-type, through-the wall and PTAC space cooling systems are among the least efficient, but still the most commonly used in multi-family buildings. Mini-split systems can reduce cooling expenses by 50% or more, while Con Edison incentives make them more affordable. However, like with any upgrade to building systems, an assessment from an engineering professional is recommended to achieve the best results. Even a high-efficiency space cooling system will perform poorly if it does not match the intended application. Ensuring that the new equipment is eligible for rebates is also important, so MEP engineering professionals should make this a priority.

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