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HVAC Rooftop Units

HVAC Rooftop Units

new HVAC systems in MOAmerican Services HVAC installation and repair service in St. Louis is pleased to announce that Daikin will incorporate Intel Technology into rooftop commercial HVAC units which will provide a plethora of information that could change the world of commercial building owners everywhere.

According to Daikin, the new HVAC systems which would adjust automatically to offer energy efficiency while never skimping on comfort for building occupants.

“Daikin Applied is implementing this through an Intel intelligent gateway solution in its existing Rebel rooftop units,” says Energy.Gov.  Daikin will now be able to use its new energy solutions  to connect Rebel units with the cloud and Intel solution.  This is a process that will allow users to manage their building performance and take care of any performance problems before they even get started.

“Intel was able to provide us with the integrated computing solution that we were looking for,” said Kevin Facinelli, executive vice president at Daikin Applied. “They offer a scalable roadmap and compatibility across Intel platforms along with McAfee and Wind River. With Intel inside our Rebel units, Daikin Applied intends to continue pushing the limits in achieving energy efficiency and advancing HVAC technologies. The type of information available to building owners as a result is exciting. It will power even greater performance in their HVAC systems.”

“Intel is working to accelerate the Internet of Things by driving intelligence into devices and gateways to unlock the data from the device to help uncover actionable information and improve business processes,” said Ton Steenman, vice president and general manager of Intel’s Intelligent Systems Group. “Intel has been working closely with Daikin Applied as they prepare to deploy Intel-based intelligent gateways to help increase energy efficiency in their existing systems while developing new business models and service offerings.”

The technology of the new unit will be able to detect any maintenance needs before problems arise.  Alerts will go out to users when there are any problems with fans or motor failures. The system will also automatically adjust itself to weather forecasts (before the climate even changes) in order to put out heating or cooling at a level that is conducive to the outside temperature-very futuristic!

The system will also be able to gather information from the buildings Energy Star ratings and compare this info to other buildings in the local area.  This information can help with financial summaries and statistics on power usage to measure the buildings overall cost of energy use.

These futuristic HVAC units are U.S.  built in Fairbault Minnesota a the Dakin Applied manufacturing plant.

HVAC Rooftop Systems Maintenance

HVAC Rooftop Systems Maintenance

commercial HVAC installation in MOAmerican Services Commercial HVAC maintenance and repair service serving St. Louis County knows that maintaining rooftop HVAC systems properly is vital to prevent expensive problems down the road.

Here are a few useful tips from contractors on servicing and maintaining HVAC rooftop units.

According to Steve Moon, Elkton Maryland; “When I think about rooftops, I think of lack of maintenance for that unappreciated soldier sitting up on the roof, all by himself, until he breaks.”

Regularly scheduled maintenance on HVAC units is the only way to ensure the HVAC system is in good running condition.  Sometimes convincing commercial building owners to spend the money on proper maintenance is not always easy, according to contractors.

“The downfall is that packaged units are typically the easiest ones to service, but they get the least amount of service because they’re out of sight,” he continued. “It’s up there, and as long as it’s working, they don’t want to know about it. They don’t want to poke the bear,” says Moon.

Educating commercial building owners is an important factor improvement in rooftop maintenance. Regular maintenance will cost an owner a specific amount, but lack of regular service checks will result in higher cost for business owners.

“The biggest tip is to find clients who are willing to spend the money for a mechanic to do a proper inspection, not a fly by,” said Ronald Sage, vice president of Westside Mechanical Inc.  “If it’s a 130-ton VAV [variable-air volume] RTU [rooftop unit], with an ERV [energy recovery ventilator], Aaon, or a little 5-ton RTU, they all have specific requirements. Each task takes time for a mechanic to do.”

Lack of service education is bad for the consumer as well as the HVAC contractor who may lose work to companies not performing proper maintenance.

One method of making sure that rooftop HVAC systems are operating properly is to make sure the surface they sit on promotes efficiency.

“I have seen the ambient temperature well over 120˚F here in Florida on the roof because of the color of the roof being black,” said Chris Johnson, HVAC sales consultant, Sunrise, Fla.,  “This causes many premature failures that could be prevented if the roof around the rooftop unit is cool sealed with a light-colored coating. Remember design temperature is 95˚ — talk about capacity loss.”

Changing fan belts regularly is another important tip for HVAC systems.

For more tips on HVAC maintenance or repair, contact us today at American Services in St. Louis.

How HVAC Systems Function

How HVAC Systems Function

HVAC Services in Saint LouisAmerican Services Heating and Air Condition knows that HVAC industrial service near Ballwin is defined as heating, ventilation and air conditioning, and is responsible for providing approximately 30 percent of the energy used by manufacturing companies today.

Both the housing and small business industry increasingly depends on HVAC technology.
Every HVAC industrial building installation will be determined by size, shape, and many other combinations of heating and cooling devices. Having a good air system design reduces energy consumption, cools the building, and improves air quality throughout the installation. Equally important is it leaves no footprint on the environment.

Normally, standard cooling installations consist of rooftop units, heat pumps, chillers and basic air conditioning units. Components such as a boiler, furnace, and electric heat can also be included.

Installation of the commercial HVAC system will depend greatly on the design of the system. So you will want to be sure to hire a contractor, such as American Services, familiar with many designs, and industrial building systems. For the basic industrial HVAC system
an air intake that is located at the top or on side of the building brings in air, this is forced through a damper by atmospheric pressure that regulates how much air is brought in.

This air is then mixed with air already in the system, and then routed through a filter to remove large debris including dust and leaves. The second filter removes the smaller particles.
The air then continues on through a fan and is either heated or cooled by coils.  A condensation pan collects any moisture from the coils. The air then moves through the ductwork to expel through the registers heating or cooling the building.  Finally the air is returned by air registers to be mixed with new air or sent out of the building.

Most commonly used in commercial HVAC installation are 3 main types of air conditioners.

– Direct expansion coolers
– Chilled water system
– Evaporative coolers

HVAC industrial installations are very complex. Knowing what is required before installation will reduce costs, prevent improper installation, and ensure good air quality. The key to successful HVAC industrial installation projects is to contract with a knowledgeable HVAC installation
professional such as American Services in St. Louis MO.

Safety for Cooling Unit Instillation

Safety for Cooling Unit Instillation

cooling maintenance in Saint LouisAmerican Services Heating and Cooling installation near Overland is committed to keeping its loyal customers updated on the latest in HVAC safety.

Installers of rooftop units say it’s more important than ever to follow safety rules for rooftop units.

Safety involves all workers at the job site according to one contractor who states; “An overlooked safety issue is not always by the contractor, but from innocent pedestrians that may be shopping or working at the place where the RTU is being changed,” he said.

“You always have to barricade off the area around the crane or jobsite. We had people deliberately move and walk under the caution tape to get to their car at a Wal-Mart project last year. You have to prepare for everything when lifting RTUs in public places.”

“Another thing I always tell my guys is that the crane operator is not an automated robot, he is a human capable of error. If he makes one wrong move, it could cost you your life. You must always be alert when there are 2,500 pounds above your head!”

For companies such as American Services, servicing heating and cooling units on the rooftop is considered safe because all of our technicians have had extensive safety training.  Safety is not only important to protect our employees it is also key to saving on operational costs-for the most part insurance expenses.

One contractor states; “Our insurance and workers compensation can get expensive when guys are not working due to injury. Most building owners now want to see that you have a safety policy in place.”  “All of our employees have been through our safety program we provide and all hold a full manual in their possession at all times for reference.”

Safety training is common sense, one technical director, said: “You have to look at all things associated with the piece of equipment, i.e., operating pressures, refrigerants used, coil cleaning materials necessary, etc. Ensure that the service truck has a first aid kit and working fire extinguisher.”

“Look twice and anticipate your next move. Your hands and feet must be in tune with your brain.”

Safety Needed When Working on Cooling Units on Rooftops

Safety Needed When Working on Cooling Units on Rooftops

cooling service and maintenance in St. Louis CountyAmerican Services commercial Cooling in St. Louis MO is committed to keeping its loyal blog readers updated on the latest in industry safety news.

It takes a full crew to install a new rooftop assembly safely. Each electrical connection, gas, and water line needs to be seated and tightened simultaneously ensuring the platform remains stable during the install.

Most contractors will tell you safety is their number one objective on the job. Equipment, electrical pneumatic , water and steam lines can all be hazardous in the best conditions.  When you attempt instillation while making a lift of several thousand pounds,  placement of these units  can often be tricky at twenty stories and higher.  These working conditions are standard for HVAC contractors and their crews, many contractors must schedule weeks out to install and service projects.

One contractor said that while the months of March and April are a little slow, rooftop service picks up dramatically in May. “I’ll service five rooftops on one job, which typically take about an hour a piece,” he said.

When working at these elevated heights a thorough indoctrination of safety in the air must be taught on the ground first. Whether installing single, or multi –unit s,  contractors ensure their crews are well trained, and that they understand the hazards of operating safely in this challenging condition.

Another contractor stated; “When on the roof, make sure that you have a harness if you are close to the roof edge. And when rigging rooftop units, make sure all persons are away from the building area that you are lifting over.”

Other professionals say; “Check accessibility of the roof and make sure there is enough area to work in.”   “Look for a safe guardrail if the unit is near the edge of the roof/structure and check for proper electrical lockout while the unit is under repair.”

Safety goes beyond the techs and installers – it involves everyone at the job site ;“An overlooked safety issue is not always by the contractor, but from innocent pedestrians that may be shopping or working at the place where the RTU is being changed,” said one contractor.  “You always have to barricade off the area around the crane or jobsite. We had people deliberately move and walk under the caution tape to get to their car at a Wal-Mart project last year. You have to prepare for everything when lifting RTUs in public places.”

Servicing rooftop heating or cooling units is much safer overall when technicians have safety training and implement common safety practices.

Not only is safety important from a human standpoint, it is also important from an operational cost standpoint – namely insurance costs.