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Test and Balance can be defined as the Art of Displacing Pressures. It is a process that measures and adjusts the air distribution of a given HVAC system. Air will follow the path of least resistance. New systems generally have problems where too much air is supplied to certain areas of the building and too little to others. Balancing involves setting the air flow in these environments to a designed specification allowing for comfort and efficiency. HVAC systems require balancing from the onset of their use and must be maintained over time in order to reach their intended life span and to ensure energy savings over time.

Our team of certified technicians will provide comprehensive testing & balancing along with a detailed, easy to read report assessing the system and providing information to resolve any problems, if necessary. We do a majority of our work on site and are able to do so in an occupied building with very little, if any disruption of workplace activities.

HVAC Test and Balance

Air Balance

Test and Balance can be defined as the Art of Displacing Pressures. It is a process that measures and adjusts the air distribution of a given HVAC system. Air will follow the path of least resistance. New systems generally have problems where too much air is supplied to certain areas of the building and too little to others. Balancing involves setting the air flow in these environments to a designed specification allowing for comfort and efficiency. HVAC systems require balancing from the onset of their use and must be maintained over time in order to reach their intended life span and to ensure energy savings over time.

MTI's certified technicians will provide comprehensive testing & balancing along with a detailed, easy to read report assessing the system and providing information to resolve any problems, if necessary. We do a majority of our work on site and are able to do so in an occupied building with very little, if any disruption of workplace activities.

Symptoms of a building with an Air Balance issue:

  1. Entry way doors "howl" and are difficult to open or won't remain closed
  2. Odor issues in storage areas, break rooms or worse... bathrooms!
  3. Frost forming on window sills in the winter
  4. High and Low Temperature areas in a building
  5. Cooling problems in the summer – no matter how long the AC runs the desired temperature is never met. Your building pressure could be negative, drawing in the hot and humid air. The AC can't ever catch up and your energy bills hurt worse than the heat...
  6. Low Humidity – space is always very dry
  7. Drafts – The wind tunnel effect. As you walk from one area of a building to another you can feel a breeze in one direction or another.


Air Balance

Hydronic Balance

Hydronic Systems use water to distribute energy throughout the building with a piping system. Hydronic Balancing involves adjusting balance valves throughout the system to ensure the correct flow of water in the HVAC system. By adjusting the balance valves, a flow rate is set (according to a design specification) and consistent heating and cooling is established throughout the system. Balancing also enables the detection and correction of problems (i.e, air in system, deficient balancing valves, etc.). If the system is not balanced properly water will flow to the path of least resistance causing temperature variation and increased operating costs.

Mechanical Testing, Inc. (MTI) has 53 years experience in Hydronic balancing and AABC, NEBB, TABB certified Test & Balance technicians will work with you to get the job done right and on time. They use a paperless reporting system that will also allow MTI to turn around the report to you within 24-48 hours of job completion.

Hydronic Balance

Comfort Systems and Surveys

Comfort is the condition where individuals will express satisfaction or dissatisfaction with a given temperature in an environment. Individuals want to be warm in the winter, cool in the summer and generally comfortable all year round no matter what the weather brings. The basic function of the HVAC system is to provide heating and cooling. A system needs to be sized properly to ensure the desired temperatures can be reached replica watches and it operates at an efficient level. An undersized system may lead to lower temperatures and also higher operating costs. A system that is too large will "short cycle," meaning it will not run long enough to remove humidity from an environment and reach cooler temperatures. This will also lead to mechanical problems with the system.

Mechanical Testing Inc will inspect the system, checking the ductwork and HVAC equipment. We are able to balance and also diagnose any problems in the system, making recommendations to remedy any problems. A properly balanced system will add comfort and energy savings to a building.

Comfort Systems and Surveys

Duct Leakage Testing

Duct leakage will reduce the air quantity in a system and also the efficiency with which it operates. The proper installation and sealing of ductwork can cut leakage down which results in a substantial operating cost savings. Duct Leakage is calculated by pressurizing ductwork to a predetermined static pressure based on specifications provided by SMACNA, then calculating the amount of Cubic Feet/Minute passing through an orifice plate. Based on the ductworks ability to hold a specific level of static pressure the test is the given a passing or failing mark.

With MTI's duct pressure testing methods we are able to quickly identify leaks and assist the contractor to efficiently remedy them. Our certified technicians will provide you with a easy to read report that will detail where your building may have issues.

Duct Leakage Testing

Filter Change Out/Inspection

Filters are the first line of defense for your buildings Make-Up and Supply Air. They help control pollens and other allergens from getting into your building. They also protect the Coils and other components inside the Air Handling Units that help control the heating and cooling exchanges going on inside the units at coils and heat wheels, etc.

MTI's certified trained technicians will inspect and recommend filter change out when necessary. Many building owners/tenants assume this is being done quarterly, and quite frankly it is often forgotten. Not only do dirty filters not help clean the air filtration in building they cause excessive wear and tear on the HVAC system leading to costly repairs or even replacement. Simply remembering to change your filters quarterly can save you thousands in future maintenance costs and keeps your tenants/staff safe. 

Filter Change Out/Inspection

Fume Hood Testing

Fume hoods are a primary engineering control used in chemical laboratories to provide personnel protection from chemical exposure. Air volume and velocity measurements are taken to insure safety with fume hood exhaust and to meet design specifications for the space. In simple terms we verify that industry safety levels for ventilation of toxic gases are met to ensure our researchers and scientists are protected while working on the next generation medicines and breakthroughs. 

MTI, has worked on many different projects involving many different applications involving a Fume Hood. From normal commercial applications like Kitchen Hoods and Paint Booths to high end Industrial Grade Capture Systems (Process Exhaust Systems) or Medical Research Hoods, 

MTI's certified ASHRAE 110 technicians can help you properly balance out your system for optimum efficiency.

Fume Hood Testing

Indoor Air Quality

Indoor air quality addresses the overall health and quality of the air inside a given environment. Conditions which affect air quality include concentrations of pollutants in the air and temperature & humidity levels. These conditions can affect the health and comfort along with productivity level of a buildings occupant's. A building should protect its occupants from the elements. It should not contribute to sickness or discomfort. A properly designed and functioning HVAC system will lead to greater air quality within a given environment. The ability for the system to supply fresh air to an environment, maintain proper temperatures and also exhaust any contaminants to the outside of the building allows the inside environment to stay healthy, comfortable, and productive.

Our team of certified technicians will thoroughly inspect the HVAC system, balance it according to design specifications and also make recommendations to solve any problems which may be found. A well balanced system will lead to energy savings, better air quality and an overall healthier environment for a buildings occupants.

Indoor Air Quality

Fire Life Safety aka Fire Damper Testing

If your building experiences a fire it could introduce pollutants into the air and through the HVAC ductwork . The HVAC ductwork can be a  gateway by circulating smoke and toxins throughout a building, even to areas far from fire. If you have built-in smoke and fire dampers then you can prevent this from happening. The value of fire life safety building systems could mean the difference between a little fire or pollutant damage or major smoke and fire damage. Even if your building has smoke and fire dampers they should be inspected. 

Most failures could be repaired and prevented by an inspection from a Certified HVAC Fire Life Safety professional. Let Mechanical Testing Inc. prevent excessive damage in your building by testing these dampers on an annual or bi annual basis.


Fire Life Safety aka Fire Damper Testing

HVAC Pre Construction Plan Review

Mechanical Testing Inc. will work with our customers during the design stages, helping review documents & plans to identify any possible issues with the HVAC design. We will share our experience with different types of systems, provide insight into which types of devices work best, identify potential problem areas and recommend solutions. Many times the test and balance phase of the project is more efficient when a preconstruction plan review is provided.

One way for a Building Owner to get maximum insight into the design and sequence of all their HVAC systems is to include a Certified Test and Balance Company, like MTI, at the onset of the project. When contract drawings are issued it is vital for a Building Owner to know that the company performing their Test and Balance work is looking at these drawings. Actively looking at duct design velocities, making sure noise isn't going to be an issue before duct is even installed.

MTI's design review includes verification of duct and pipe sizes with regards to intended volumes of air and water. MTI's certified TAB engineers and Commissioning agents will review the HVAC submittal data and compare it to the contract schedule then cross reference to contract documents, making sure a comprehensive review of the scope, taking into account design tolerances are achievable is completed prior to getting to the project site. This approach allows MTI to diagnose problems that could be averted before ductwork and piping is even installed. This could save the construction team from headaches, change orders and save the building owner thousands of dollars.

HVAC Pre Construction Plan Review

Kitchen Hood

Remember a good kitchen hood is not only properly disposing of heat and smoke. Having your kitchen hood properly dispose of hot air and food smells is essential for any good restaurant. You certainly don't want you space to smell like a variety of foods being cooked, grease, organic compounds in the kitchen. This is why proper exhaust is a must! Make up air is essentially important to this process. This is why having a certified trained professional check exhaust air flow rates.

MTI's certified professional will check your Kitchen Hood to ensure proper make up air is available, if not they will provide solutions to fix it.

Kitchen Hood

Air Exchange Compliance

Mechanical Testing, Inc. (MTI) can help ensure your building is safe and help prevent sick building syndrome by increasing outside air flows. The CDC recommends all businesses check their air changes per hour (ACH) for proper compliance. This ensures you fall within the Guidelines for Environmental Infection Control. Now, more than ever, it is important to ensure the health and safety of all persons within your facility!

Learn more about the CDC Guidelines for Environmental Infection Control in Health-Care Facilities (2003)

MTI's certified trained technicians will asses your buildings air exchange rate and maximize air flow while trying to maintain some energy efficiencies.

Air Exchange Compliance