Think Positive

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I had a mentor in my life that always reminded me, “Your attitude determines your altitude”.

I don’t know anyone that has the greatest attitude or is always positive 24 hours a day 7 days a week, but what if we made a conscious effort to begin to look for the true value in the things and people around us?

Do I love getting up for work at 4:30 in the morning? Uh, No.  But I do love those mornings when the sun is just coming up and the birds are singing.

Do I love dealing with a difficult co-worker on a daily basis? Again, No. But I can handle each situation with that individual with a sort of grace and compassion.

Do I necessarily love all of the extra safety measures that have been put into place during these difficult times we are all going through. No, not especially. But my attitude can be one of, I get to go to work today!

Attitude: a settled way of thinking or feeling about someone or something

If an attitude is that thing which I can settle into, a choice to see the positive in the situations that may arise and the people I come in contact with everyday then there’s nowhere to go but up!

Stay positive!


-Lindsey Baker

National Museum of the United State Air Force – Hanger 4

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This project was special and challenging due to the design of a dual temperature HVAC water system, the size and height of the building, and the vast amount of equipment and systems to install with a very aggressive schedule. MSD was responsible for all of the Mechanical work including HVAC systems, controls, radon systems, plumbing systems, and insulation for both plumbing and HVAC on this Project.

MSD faced many challenges from the start of the project. We were not able to start our underground plumbing work until the structural steel contractor finished setting the arches which required (3) cranes working in unison, to lift the arches in place. Because of this, we were forced to start our underground in December. In order to help facilitate the schedule, we worked hard to complete the underground as quickly as possible all while fighting the frozen ground. We also, began installing our overhead duct and pipe before the roof was on. This left us contending with the rain, snow and winter winds.

During the spring and summer, our field crews utilized a phone app that would warn them of any nearby lightning headed their way and were able to work around every storm that came, descending down off the lifts safely and out of harm’s way. Safety was in fact THE number one priority on this project; Turner employed a full-time safety supervisor on site and with the excellent coordination and communication between Turner, the Corps of Engineers, our safety director, our foremen, and our mechanics we were able start and
complete this project without a single incident even while being delayed approximately (30) days due to weather. With the size of this project and the amount of manpower used to build Museum Hangar 4 it is quite extraordinary and very self-rewarding.

This project was one of the most challenging projects MSD has completed. In fact, it would have been impossible if it wasn’t for the leadership of two excellent foremen: Kevin Oney and Jeff Storck as well as their field crews. We can attribute the project’s success to the employees and their attention to detail, as well as excellent craftsmanship. Almost every project has its challenges and obstacles, but this one was by far unique. Now when we walk up to Building Hangar 4 and look through those huge doors to view
what we accomplished, we only ask one question: “When is Hangar 5 going to start?”


You can read more on NMUSAF by clicking here.

Ohio Valley ABC Chapter Awards

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The ABC Awards were held on May 28th, 2020 via Youtube Live Online. Yes, you heard that right, online. Although it was a change of pace for everyone we are in uncertain times. But one thing is certain, MSD brought home some well-appreciated awards. Our team was awarded the Platinum Step Award, Community Involvement of the Year Award, Eagle WPAFB 88th Medical Center Award, Merit Airstream, and Sicsa Award. Thank you to all of those who congratulated us and helped us get to this point. We are already looking forward to what next year will bring. 

We will be posting blog posts about the following projects in the next few weeks to come. Please continue to look out for them and share the stories of these amazing projects. 

The Conner Group

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Mechanical Systems of Dayton Inc. entered into agreement with Messer Construction Company to provide Domestic Plumbing and Gas Piping work for The Connor Group Corporate Headquarters. The project is located in Dayton, Ohio. The building contains a total of 39,825 square feet of office space. The contracted value of this project was $466,000. MSD was responsible for the installation of the building’s Plumbing system which consisted of: The Installation of domestic water and sewage system, (44) Plumbing Fixtures, Triplex Potable Water Booster Pumps with VFD Control, Duplex Sewage Injection Pump System, Duplex Water Softening System, Duplex Sump Pump System, Twin 100 Gallon 199 MBH Water Heaters, and the Installation of Gas Piping to all Fuel Fired Appliances, which are only a few of the Plumbing Components installed for this building.

Some of the obstacles that we faced in order to complete this project certainly lied within the irregular shape of this building. Due to that shape we had to adjust and become innovative with our installation and also with some of the equipment and materials that we used. Instead of using standard 90 degree fittings, we had to use swing joint fittings in order to get the correct angles. We also overcame obstacles by having to readjust the pitch on our roof drains after installation. We needed to readjust due to the tension cables holding the glass wall that leaned outwards from the building. After tensioning the cables, the cables pulled down on the roof and we had to alter the pitch to compensate for the tensioning. We also experienced challenges on this project in regards to quality control on our layout of the underground portion of the work. Since this was not your standard shaped building, we had to perfect our layout to make sure our systems were properly installed. As a company we learned from the project and have invested in a Trimble Unit to assist with our layout process moving forward.


You can read more on The Conner Group by clicking here.

Meijer Distribution Center

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This project was unique because the facility could not completely shut down operations while the existing units were removed, and the new units were set in their place. Because of this, it was determined that the units would need to be air lifted and set on top of the building using a helicopter. The helicopter was necessary to ensure that the change out of the units was completed in a 4-hour time frame so as not disrupt operations for an extended period of time. To accomplish this, we needed to have a large crew, (16) of our skilled field personnel who worked diligently to complete the change out of (6) RTUs in a matter of 3 hours while continuing to maintain a safe working environment.

Understandably, a manufacturing facility will have a constant flow of traffic from the employees and the 18-wheelers that come in to get loaded for distribution to the Meijer facilities. Because of this it was important that we were able to find a location for the equipment central to the two buildings we would be working on but still keeping them out of the way of traffic. The helicopter planning required a little more than determining the landing location. It was imperative that we notify and coordinate with Care Flight as well as Dayton International Airport to be sure that the helicopter would not interfere with the flight path of either operation. In addition to this, we notified the local Police Department and Fire Station of the helicopter lift in case of an emergency. In the end, the removal of old and installation of new went off without a hitch. It was an exciting experience to witness the execution of all the careful planning that took place to make this project a success.

This project was both challenging and exciting because it required the use of the Sikorsky S61N Helicopter is setting the (6) rooftop units.

You can read more on Meijer Distribution Center by clicking here.

It’s Great In Dayton

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Hello! Welcome back to MSD’s Blog Page. We are working hard to provide you with lots of new articles and information.

Recently Logos at Work sent us a link to purchase shirts to help support local restaurants. We want to help them out by sharing their email & the link to their store.

“Support your favorite local restaurant through our new store; It’s Great In Dayton. For every shirt purchased, $10 is donated to a restaurant of your choosing. We are proud to have donated over a $1,000 so far to Dayton restaurants. Together we can keep Dayton cooking! Ultimately, we intend to use the site to support local, non-profit organizations. However, when our community began to face the Covid-19 pandemic, we shifted gears and decided to support our local restaurants that have been severely impacted.” – Logos at Work


What a great way to reach out to the community in a time of crisis. Click the Link & Start Shopping! It’s Great In Dayton

#DaytonStrong #Covid19 #GreaterDayton

Meet Conner

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What’s your name? Conner Trace
Are you married? If so, how long, do you have kids? Neither
What city/town do you live in? Fairborn
How long have you worked at MSD? Six Months
What is your current position here? Fab shop laborer
What do you like most about your career? Being able to learn everyday
How long have you worked in this field? Ever since I got hired here
What are some of your hobbies & interests? Golfing, hiking, watching NFL, hanging out with friends/family
Do you have pets? 2 cats named Pigeon and Peanut and a dog names Daisy
What is your favorite place to have ever traveled too? Washington State
What is your favorite color? Red
Do you have a favorite Disney Movie? Hercules
What time do you usually fall asleep? 10:30ish
How do you relieve stress? Watching a movie/going outside

Pre-Apprenticeship Course

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The Best invention is reinventing yourself. Can you answer these questions with a “Yes”?

Are you looking for a challenging career?

Do you want to work while you learn?

Are you looking for a career that is rewarded by working with your hands?

Then you should consider working in the trades. The HVAC & Plumbing Pre-Apprenticeship Course is aimed at prospective apprentices to provide them with more information about the p-h-c industry. Completing this course will help you determine if this is a Trade/Career for you!

Either of these trades can provide your family and you a wealthy life. Dream of a Boat, Motorcycle, or a Lake House you can reach all your life goals in the HVACR and Plumbing Trades.

For a limited time, you can take the Pre-Apprenticeship Course for free! This offer expires June 30, 2020.

This online educational program gives prospective HVAC and plumbing apprentices an opportunity to learn about the p-h-c trade before beginning a longer-term apprentice program.

During this six-module course, participants will learn what is required to pursue a career in the industry as well as key skills and techniques to help them succeed in apprenticeship.

This course is offered online through the PHCC Academy. It was created by the PHCC Educational Foundation, and developed by Adam Manley, PhD., Associate Professor of Career and Technical Education at Western Michigan University.

Click on this link below.

If you pass this course and seek employment. Please contact

Hot Water Systems

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At MSD, Inc. we believe our responsibility is protecting the Public Health. As part of that responsibility we wanted to share the following article posted by PHCC discussing the importance of maintaining the ongoing balancing act between Legionella Prevention and Scald Prevention in your Facilities Hot Water Systems. If you have any concerns, Team MSD is here to further evaluate your Facilities Hot Water System.  #PHCC, #TEAMMSD, #ProtectingPublicHealth…..


There has been a lot of confusion about how to properly design, install and maintain a domestic hot water system to simultaneously control both scalding hazards and Legionella bacteria growth. Many people mistakenly believe that controlling hot water system temperatures is like a balancing act performed by simply adjusting the thermostat dial on the water heater to somewhere between scalding temperatures and Legionella bacteria growth temperatures. Unfortunately, there is no middle ground temperature. Any temperature that will minimize scalding in accordance with temperature limits in the model plumbing codes will be in the Legionella bacteria growth temperature range. The only solution to this dilemma is to use hot water temperature control valves to keep storage and distribution temperatures above the Legionella growth temperature range and reduce the temperatures at the fixtures to a safe temperature for bathing, showering and washing.

Water heater thermostat accuracy

Many people have made the mistake of assuming the thermostat dial on a water heater accurately controls the outlet temperature that flows from a water heater, but the thermostat does not accurately control the outlet temperature. Using the thermostat on a water heater to prevent scalding is prohibited by the model plumbing codes because the industry knows the thermostat dial on a storage-type water heater is not designed to accurately control hot water coming from a water heater. There are several types of water heaters on the market and the most common is the storage tank type. Other tankless or instantaneous water heater types have their own unique temperature control versus flow challenges that typically result in the use of temperature actuated control valves as part of the equipment, or a tempering valve is required as part of the system design, or the tankless heaters may not be capable of reaching a disinfecting temperature. The thermostat on a storage-tank-type water heater, however, is not designed to accurately control the outlet temperature because it is located near the bottom of the water heater to sense incoming cold-water temperatures and “turn-on” the energy to the heating element or the fuel to the burner.

The thermostats do not sense or control the hot water that accumulates at the top of a water heater. The water heater thermostats are designed in a way that causes an inherent delay in sensing hot water temperature because the heat must flow from the heated water through a boundary layer of water adhering to the thermostat, through the wall of the thermostat, through an air space in the thermostat, and then to a metal rod that expands and contracts to open and close contacts in the thermostat device.

I was told this heat transfer delay causes a lag time and overshoot temperature of about 11 to 15 degrees depending on the manufacturer. One water heater manufacturer’s representative told me the technicians in their factory had witnessed temperature lags as much as 18 degrees on some water heater models tested. This thermal delay results in a temperature chart that looks like a roller coaster. The water temperature at the thermostat element drops below the set point before the burner comes on and rises above the set point before it shuts off. This is why two different water temperature tests of a water heater at different times can yield vastly different results even though no adjustments have been made to the thermostat setting.


In addition to the above mentioned thermal cycling, there can be stacking of hot water at times when there are intermittent short draws of hot water. Stacking occurs when cold water is drawn into the bottom of the water heater intermittently and causes the burner to cycle on even when the hot water at the top of the heater is well above the desired temperature setting. With each consecutive short draw of hot water and resulting burner cycle, the hot water temperature in the top of the water heater continues to rise and the outlet temperature can be as much as 30 degrees or more, above the thermostat set point. Therefore, the model plumbing codes prohibit the thermostat on a water heater to control the outlet temperature for purposes of scald prevention at fixtures.

Please view the following website for additional information :