Why Should Your Company Install an Energy Recovery Unit?

Energy Recovery UnitDesigned to recover up to 80% of the energy expended, an energy recovery unit is an ideal way to make your company’s monthly expenses lower.  It can be used as a standalone module or can be attached directly to the rooftop, thus allowing it to accommodate more outdoor air quantities. Even better, when opting for the rooftop installation you can often go with a smaller unit capacity, which means a lower installation price.

The energy recovery units (ERU) are ideal for a long list of industries – some of these include hotels, hospitals, sports halls, office buildings, seminar rooms, swimming pools, paint spray booths and many others. At MJC, we offer several types of energy recovery units, so there is certain to be one that fits your unique needs and building design. Below is a list of our ERU types and a brief description:

·      Fixed Plate ERUs – Designed with no moving parts, compact, outstanding corrosion resistance, compatibility with high temperatures applications, the fixed plate design is often the best choice in ERUs for a company.

·      Sensible Plate Energy Recovery – Known for trouble free operation, reduced noise and minimal maintenance, lightweight, compact design, no moving parts, separate air streams and no cross contamination.

·      Enthalpy Plate Energy Recovery – Like the others, the Enthalpy Plate Energy Recovery boasts no moving parts, minimal maintenance costs and reduced noise.

·      Energy Recovery Wheels – Designed to recover sensible and latent energy, it will not promote the growth of mold or bacteria, has increased fire protection and is easy to maintain.

But if you are on uncertain about whether or not an ERU is needed for your business, then consider these additional benefits in having one added to your location.

1.     Fresh air – During the winter, the air can get rather stale as doors and windows are not opened as often. An energy recovery unit will circulate the air keeping it fresher and more breathable.

2.     Healthier employees – As a business owner, you depend on your employees to help you succeed. If they are out sick; the work production is affected. By swapping out the air, you are ridding your place of business of germs and bacteria which creates a healthier environment and lowers risk of winter colds being circulated throughout the office.

3.     Save money – The biggest benefit is the money saved. An ERU eases the strain on your HVAC system so it doesn’t have to work as hard, thus extending the life of the unit. In fact, studies show that energy bills drop by as much as 40% when an ERU is in use.

An energy recovery unit is a must for any commercial space. It combines energy efficiency with ease of maintenance, better health and lower costs to make it a wise decision. If you have questions about how an ERU can benefit your space, give one of our MJC, INC. specialists a call today.

Choosing the Right HVAC System for Your Place of Business

MJC HVAC systems home 2aDid you know that HVAC systems count for 39% of the energy consumption in commercial buildings in the US? This fact alone, has been enough to propel companies to look for ways to design a more energy efficient method of keeping their location. But, when you also consider that use of high performance heating, ventilation and air equipment can save between 10% and 40% in energy and emissions, then looking for a way to stay comfortable, but also save money is important.

At MJC, we offer several types of HVAC systems. These range from outdoor units, portable and rental units, custom design units and gas-fired units for energy efficient systems and produce direct, indirect or heat injector systems, as well as our very own, patented Heat Injector – the most energy efficient direct gas fired heat technology available.

Considerations in Choosing an HVAC System

As you begin the process of selecting an HVAC system that will work for you, there are a number of concerns that need to be addressed:

·      Consider the various aspects of the building. From lighting to square footage, and how the space(s) will be used, to systems in the building that will generate more heat, take a moment to review the building as a whole.

·      Determine your energy goals as soon as possible. If your goal is to merely meet the energy requirements, rather than use less energy then, then your HVAC system needs will be different. This difference will be reflected in both type and size of system.

·      Plan for expansion but don’t automatically buy for it. While you may expect your HVAC needs to change in the future, it is better to buy for the needs of today. Otherwise, you will be wasting money on a system that may very well be obsolete by the time you make the space expansion.

·      Plan now for maintenance and operation needs. When you select an HVAC system, keep in mind that it will require a certain level of maintenance in order to run at its full potential. You will need someone onsite who understands the various components of your chosen system.  Ideally, these people will be trained to understand the controls and equipment needs, so that they can keep your HVAC unit running properly.

So, which type of system is best for your needs? If you don’t know, then talk to one of our MJC representatives. They will be happy to visit your location and help you assess what will be best. We understand how important it is to you to have a system that is both energy and cost efficient, and will be happy to answer your questions and concerns.

How Much Do You Know About Commercial HVAC Coatings?

Architectural CoatingsDid you know that corrosion in commercial HVAC units is responsible for 40% of the equipment failures? And, should your business have a seaside location and not have the HVAC unit properly protected then the operating performance of unprotected condenser coils may decrease over 50% in a single year!  This deterioration may happen over time and not be discovered for as many as four years or it can happen in just months and can require that the entire system be replaced – definitely not a budget friendly activity!

Types of HVAC Corrosion

The corrosion is generally manifested in one of two ways – pitting or formicary – and neither of them are something you want to hear mentioned. Pitting is typically caused by the coil being exposed to fluoride or chloride while formicary corrosion is due to exposure to acids such as those found in cleaning solvents, insulation, adhesives, paints and many other materials. Formicary corrosion can be more subtle and take a bit longer to be discovered, while pitting usually moves quickly and will form holes that cause the coils to leak refrigerant.

As neither of these situations is desired, it is important that you have a coating added to your commercial HVAC unit. At MJC, we offer 3 types of coatings: anti-microbial, anti-corrosive, and architectural coatings.

Anti-Corrosive HVAC Coatings

This is an epoxy based primer with a urethane UV protective top coat. It is applied to the tube sheet (aka, coil surface) the headers and the refrigeration circuits. This process exceeds industry standards, and is perfect for providing corrosion protection in both salt air or chemical environments.

Anti-Microbial HVAC Coatings

Like our anti-corrosive coating, this is coating goes above and beyond industry standards; it is designed to protect your commercial HVAC unit against corrosion, but it goes a step further, and works as a preventative against bio growth on painted surfaces. Also noteworthy, the coating has a miniscule effect on the heat transference of the coil or the pressure drop through the coil.

Architectural HVAC Coatings

No matter the needs of your commercial HVAC unit, we have a coating to protect it. Regardless of the type of unit you have, we can design a coating that matches your building. In fact, we have matched our architectural coating colors to rooftops, company colors and even industry safety colors. We use the highest quality coatings, which are designed to resist abrasion, chemicals, marring, chipping, and scratching.

You don’t want to make the investment of a state of the art HVAC system only to have it need to be repaired due to corrosion. No matter where your business is located, it is vital that your HVAC unit have the proper coating. Talk to us today to determine which type of HVAC coating is best for your space. 

6 Tips for Selecting a Commercial HVAC System

MJC Inc Energy WheelsIf you are building a new business location, or perhaps considering upgrades for an existing one, chances are, you will need to think about the type of commercial HVAC system to install. After all, you want to keep on budget, not just in the purchase and installation phase, but also in the future as you pay energy costs each month.  But what should you look for in selecting an HVAC system? After all, that is not something that most of us have a great deal of experience in!

6 Tips for Selecting a Commercial HVAC System

As you begin the search for the HVAC system perfect for your business, don’t hesitate to ask questions. Talk to several HVAC specialists, visit other companies and find out what they have and why, and then make an informed decision. As you do your due diligence, the following tips will help.

·         Efficiency – As with any business investment, cost will always be a determining factor. But remember, that it is not the only factor. Perhaps one of the most important things to look at is the efficiency of a particular brand or type of HVAC system. Be sure that a particular unit or style will not just heat and cool, but do so in a way that works with the design and usage of your space.

·         Reliability – It isn’t truly saving you time and money if the system chosen requires frequent updates, repairs, and cleanings. Select a system noted for its reliability and minimum maintenance needs. A good way to learn how dependable a system is will be talk to others who have the same set up.

·         Size – Bigger is not always better. You don’t need a system that is larger than necessary as it will actually cost more and be less efficient. Be sure that your company’s HVAC system is the right size for the number of people who will be in your building as well as the square footage of your facility.

·         Specifications -When asking for a quote on an HVAC system, be sure to ask for one based on specifications for a standard efficiency system as well as a high efficiency system including life cycles. Typically, if the lifecycle cost is less on the high-efficiency unit, this will be the system to purchase.

·         Recycling –To minimize wasted energy, consider having a system that recycles the exhaust air stream and turns it into incoming fresh air.

·         Building Type –Areas such as warehouses and garages often do best with a radiant heating system while facilities that do onsite cooking or have heavy equipment in use do well to have a heat recovery system as a way to capture “wasted” heat and use it to offset facility heating and cooling costs.

Choosing the right commercial HVAC system for your business location doesn’t have to be stressful. Use these tips and talk to an MJC HVAC specialist to learn what type of design and system will best work for your location. We are here to listen to your needs and help you decide. Give us a call today.

The Benefits of Having a Custom HVAC System

MJC Inc Energy Recovery UnitsWhen you find yourself in the process of building your dream business location, you are faced with many decisions. From the type of fire suppression system to office furniture and everything in between, you have to make dozens of choices. One of these decisions will likely include choosing an HVAC system. And, while there are a number of wonderful commercial HVAC systems available, why not have a system designed to meet your needs and location?

With new construction, you can make choices that will benefit you – not some other company. Here are some of the reasons why companies ask MJC to develop a custom comfort system:

· We have a variety of high-tech equipment that incorporates many options. From the types of coatings used to the design of fans or ductwork, you can have an energy efficient solution. (Of course, if the HVAC unit is already in place, we can modify a non-MJC unit to meet your needs.)
· You can choose between split systems, or systems where the HVAC unit is installed on the ground outside your location or on the roof. You may even opt for a combination of these based on your needs for a specific space.
· Having an HVAC system that is too large for your space is just as bad as one that is too small. By having a custom unit designed, you can ensure that it is just what you need, thus making it more energy and cost effective.
· With a custom system designed and installed by MJC, you can count on the ductwork being placed where you need it for maximum balanced air delivery. This significantly minimizes the risks of improper installation, leaks, and loose connections.
· With a custom design, you can install the pieces needed to provide you with clean and healthy air. From the types of filters used to ventilation, you can be certain that you and your team have the best air quality possible.
· Because the system is designed just for your space, it doesn’t have to mean it will break the budget! Typically, custom-built HVAC units will cost less, and save you more because it is designed to meet your needs, rather reconfiguring another company’s ideas of what your HVAC system should have.

From comfort to cost, having an HVAC system that works for you is not something to overlook. At MJC, we can create an HVAC system that is perfect for you, so that you pay for what you actually need, not what a company thinks you need. Give us a call today to get started on the planning and installation of the HVC system right for you.

HVAC Modifications and Your Building’s Needs

Split Systems UnitWhen it comes to HVAC systems, not every commercial building has the same needs. And, while this is nothing new to acknowledge, it is also important to realize that the choices are many when looking for a commercial HVAC unit that meets the requirements for keeping a place of business comfortable, yet not break the budget.

The team at MJC recognizes that there are scenarios where you need a system crafted just for your space, so we have skilled technicians who will ascertain what your needs are and then design accordingly. Even better, we have a variety of HVAC modifications that we can make to help keep you comfortable. Some of these include:

·         Coatings – We have three different coating available: anti-corrosive, anti-microbial and architectural. All of our coatings exceed industry standards so that you don’t have to be concerned about your HVAC units or coils being damaged due to the environment or chemicals.

·         Coils – Our coil modifications can be made in many of the standard HVAC systems that use air handling units or packaged units. There is an assortment of options available so you can count on having a system that totally meets your needs.

·         Hot Gas Bypass – It is important that your space feel comfortable, no matter what the temperature is outside. We can install an APR Control that will respond to the changing conditions. In fact, it works so well, that you might believe that your HVAC system is thinking for you!  Known for its ability to respond to the heat content of return air, it will outperform end-type controls like thermostats and humidistats, thus making your HVAC unit more energy efficient and less costly to use. Other benefits of this modification are compensation for efficiency differences between old and new systems, humidity reduction, less piping and ductwork in multi-zone designs, and the use of eco-friendly refrigerants.

·         Fan Modifications – Don’t feel as though you must use the fan that came with your HVAC system. There are actually several types available – forward curve fans, bladed backward curve fans, plenum fans, propeller fans, spark resistant fans and tube axial fans – and each of these fans serve different purposes.  Whether you need a fan that is quieter, one that uses the minimal amount of space, or several fans placed in a specific design, we can create a fan system that meets your needs.

These are but a few of the many ways that we can modify your company’s HVAC system and design to accomplish your needs.  Not sure what type of HVAC modifications will best suit your space? Talk to one of our modification experts today to learn how we can design a system that is perfect for your heating and air needs.

5 Fall Maintenance Tips for Your Commercial HVAC Unit

hvac-tipsFall is officially here and with it comes cooler temperatures. And while many of us embrace the cool after the hot weather of a Georgia summer, these lower temps are a reminder to prepare for the colder days ahead. This preparation can take on many aspects, but one job that should not be overlooked is ensuring that your commercial HVAC unit(s) is ready for winter. After all, you don’t want to lose holiday business because your space is too cold to spend time in!

5 Fall Maintenance Tips for Your Commercial HVAC Unit

Performing basic HVAC maintenance tasks is about more than just minimizing problems. It is a way to reduce energy costs for your company. By installing a programmable thermostat, ensuring that your system is designed to benefit your business, and by making upgrades when needed, you can make HVAC maintenance a smaller portion of your responsibilities.

Basic Commercial HVAC Maintenance Practices
· Should you have a system that uses filters, be sure to change these according to the instructions. This will improve the system’s performance, efficiency, and lifetime. Studies show that nearly 30% of electricity used in a typical commercial space comes from the HVAC unit. By keeping it clean, it doesn’t need to work as hard, so energy costs are lower.
· Do planned maintenance checks on the various pieces of equipment to be sure that your warranty stays current. Many HVAC companies will not honor a warranty if the piece has not been properly checked or updated as needed. Consider creating an HVAC maintenance schedule to ensure that each element of the system is checked when it should be.
· Be sure that your HVAC unit’s thermostat is properly calibrated so that you can set it for a specific temperature.
· Check around ductwork, vents, windows, and doors to make sure that no air is escaping. Should you find any leaks, have them sealed asap.
· Check elements such as heat exchangers, any tubes or other orifices where debris can build up and prohibit efficiency.

These maintenance tips for your commercial HVAC unit are not difficult, or lengthy to do, but failing to do them can have significantly adverse effects. Take time now to check out your company’s HVAC units. If you feel as though your older commercial system is not working as needed, or that you are spending more than necessary trying to maintain your existing system, consider having a custom commercial HVAC system designed by MJC.

For questions about the state of your HVAC unit, or to get an expert’s advice, give the MJC team a call today. We can check out your system, provide tips for getting more from it, or even custom design an HVAC system that meets your needs. Don’t wait to see “if” something will happen. Be proactive, and prevent HVAC problems before they can occur.

MJC Provides ERV Upgrades for a Local Fire House

erv-1At MJC, it is our goal to create the perfect commercial HVAC system that meets the needs of those who reach out to us. Our years of experience, knowledge and a willingness to try something unique mean that we can take a basic HVAC system and reconfigure it to function in a way that works better than ever. Consequently, we have been a part of the upgrade process for numerous businesses.

Recently, an area firehouse reached out to us about making changes to their heating and air unit. Their current system was a 5 Ton Trane Split System, and while this is a great HVAC system, it was still not what they needed to meet their specifications. Because of our knowledge of heating and air units, the MJC team was able to redesign the Trane system and make their standard factory split system a fully custom design, complete with energy recovery capabilities, which can compete with an Aaon 100% OA Unit!

Offerings Provided by MJC:

1.       Energy Recovery Unit Built onto the AHU. Specific duct connections required for Top RA and Bottom OA

2.       ERV & AHU built onto a common base frame

3.       MJC provided VFD on the Factory Supply Fan

4.       Hot Gas Reheat to meet LAT

5.       MJC Added 50MBH Heater / Heat section on top of the AHU for top supply

6.       APR Rawal Valve installed on the Trane CU for capacity control

7.       Entire ERV & AHU wired for single pt power.

Setting MJC apart from other commercial HVAC manufacturers is that we offer elements and system redesigns specific to you. This customization can be done through a variety of approaches. One such offering is the MJC ePlate heat exchanger which has features such as no moving parts, a compact and lightweight design, outstanding corrosion resistant and being compatible with high temperature applications, and plate and frame heat exchangers.  These features mean that our systems are the best energy recovery solution available.

However, the ePlate is not our only energy recovery approach to customizing a commercial HVAC system. Other choices include the following:

·         Energy Recovery Wheels that uses air-to-air recovery technology

·         MJC Enthalpy Plate energy exchanger that combines the latest in energy recovery technology with a polymer desiccant

·          Sensible Plate Energy Recovery system that offers features such as no moving parts, little to no maintenance costs, separate air streams and a lightweight, compact design.

With so many options for designing a heating and air system that suits the needs of a business, it is no wonder that so many companies have asked us for help!

If you are in need of a redesign of your commercial HVAC unit, then the MJC team is perfect for the job. We understand the importance of having a system that meets your locations needs and specifications and can design a custom system that works for you. Don’t be unsatisfied with an HVAC design that doesn’t meet your needs. Give the MJC team a call today.

MJC Meets Manufacturing Marvels!

mjc-aug-1Recently, the MJC team was featured on Manufacturing Marvels, which is part of the Fox Business Network.  The Fox team visited the MJC facility and created a video that showed the behind the scenes activities at MJC.

As you watch the video, you will learn more about how we are making strides in the HVAC field and how what we do is unique to us.  We are proud of our technicians, welders, and in-house worker’s ability to produce systems that can be used for virtually any type of facility. From rooftop systems to outdoor pads or indoor units, it is our goal to design and install HVAC systems that make keeping your work facility comfortable all year around.

Some of the HVAC features our customers appreciate include –

·         Air Turnover Units – These can be used to heat and cool spaces of up to 100,000 square feet without the need for installing traditional ductwork. Better yet, this system cost less to install and has a higher efficiency level than traditional HVAC units.

·         CONVERGENCE – The CONVERGENCE VRFMZ Multi-zone unit is the first of its kind. It is designed to take advantage of VRF heat recovery systems and provide simultaneous heating and cooling to multiple zones.

·         Energy Recovery Units – Our ERU takes outside air and heats or cools it as needed. It is up to 80% more energy efficient than other energy recovery units used today and is especially popular in hotels, sports halls, office buildings, swimming pools, and many other commercial locations.mjc-aug-2

·         HVAC Coatings – Perhaps the unsung hero of the commercial HVAC unit, the coating for a heating and air unit and can be architectural, anti-microbial and anti-corrosive –depending on your particular needs. The coatings can also be modified to work with various HVAC systems. It is used extend the life of your HVAC equipment by protecting it from the elements.

With an assortment of HVAC systems that can be custom designed to suit your work area, and a team that will do all we can to ensure that your facility’s HVAC units are all they can be, you can count on us for all your heating and cooling needs. Contact the MJC team to learn how we can make your energy efficiency levels better than ever before.

Data / Computer Room – Case Study

case studyIn  business, there are many things one must consider to be successful.  From being sure to maintain the budget to doing our part to minimize our footprint on the environment and ensuring that employees have a workplace that allows them to be productive, it is important to look for ways that can help your company be effective as well as efficient. After all, it is in taking actions to build success that result in a company not just appreciated by those who work for you, but in gaining the approval from those within your industry.

One such way that MJC helps companies be successful is by helping them create a comfortable work environment. This is done through implementing HVAC systems designed to work with their needs, while still making as little environmental impact as possible. Recently, we were approached by a well-known, national communications company to maximize their computer room’s workspace, while minimizing the amount of noise their existing HVAC system produced, however, the changes needed to keep their company’s footprint from increasing.

Our Solution:

After an assessment of the facility to see how their current HVAC system was set up, we had a plan. We then collaborated with a major HVAC manufacturer, which resulted in a commercial split system. The MJC team built the AHU portion of the job, designing a unit that moved the noise caused by the compressors to be moved to another location away from the work area.

This innovative design used stacked plenum fans and a V-bank coil configuration. In taking this approach, MJC was able to double the capacity of the units without increasing the footprint. A definite win for all those involved. So, how did we do it? Here’s how.

The MJC Unit Design:

·         15,000 CFM

·         (3) 5,000 CFM Direct Drive Plenum Fans – VFD on each Fan

·         40 Tons DX Cooling

·         Custom UL electrical enclosure

·         Modular Retrofit Construction, which made it possible for modules to be able to fit through a standard door

As HVAC specialist with many years of experience in creating custom systems, we were happy to take on this assignment and design a system to meet these parameters. The MJC team was happy to partner with another HVAC specialist to design a system that did exactly what the client wanted, and we look forward to many other custom projects. If you need a customized HVAC system for your commercial location, we want to be a part of the solution. Give us a call today to learn how we can take your HVAC problems and turn them into productive solutions.