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Thermostat Determination With HVAC

Thermostat Determination With HVAC

thermostatHere, on behalf of your St Louis HVAC sales and service near Ballwin MO, we discussed the possibility of handling your own thermostat installation, assuming you may need one.  You’re your HVAC causes issues, it is important to be able to diagnose the problem to the best of your ability, then seek professional help when you come to the end of your rope.  Say you determine that it is indeed a thermostat you need for your St Louis HVAC system near St Peters.  What type of thermostat do I need?  This is a question best answered by researching.  In doing so, on behalf of your HVAC sales in St Louis MO, we found that the first step is to survey your heating and cooling systems to see what type you have (heat pump, boiler, furnace, electric baseboard).  “If you have a boiler you need to count the number of wires in the old thermostat. If you have three wires it requires a special unit.”

According to the expert articles we read from online on behalf of your St Louis HVAC sales near Ballwin MO, we know that another thing is to check the number of stages you have of heating and cooling. “This can best be done by looking inside the old thermostat. If you have more than one stage of cooling there will be y1 and y2 terminals with wires on them. If you have a two stage furnace, there will be w1 and w2 terminals with wires on them.”

You must also find out what the source of power is that is available to the unit. This can be accomplished by looking at the existing control and looking for the following, according to our research on behalf of your HVAC sales near Ballwin. “If you are replacing a digital unit, look for a C terminal. If there is not a C terminal or there is no wire attached to it, you will need a battery operated replacement unit. If there is a C terminal with a wire attached to it, You can use a system or battery powered unit. If you are replacing a mechanical thermostat, it is best to get a battery powered replacement.”

Makeup Air and Commercial Kitchens

Makeup Air and Commercial Kitchens

ventilationIn our previous post on behalf of your St Louis Restaurant Equipment Installation near University City MO, we discussed some of the options for ventilation that you may or may not want to include on your restaurant equipment list for your upcoming commercial kitchen needs.  How is it that you ought to decide upon which style and function you need in the way of ventilation?  Originally, we talked about how it is based upon your cooking style, and although this is definitely true, there are other factors that weigh in besides cooking style and mechanical needs and space of ductwork.

Self-circulating hoods and grease extractors are two things to become familiar with, according to our St Louis Restaurant Equipment Maintenance near University City MO.  “Venting to the outside can be difficult, especially if your commercial kitchen is in an older, large building, but it is necessary. Self-circulating solutions aren’t generally safe for commercial kitchens and most states won’t allow it.”  You will want to make sure you consult an engineer if this is a problem for you.

Don’t forget to consider your commercial kitchen’s layout requirements before deciding upon the best vent for your restaurant equipment needs as well.  To maximize on the abilities of your exhaust hoods you will want to keep these things in mind:  Cooking equipment is always best placed far back against a wall in your kitchen. Wall-mounted hoods traditionally work better than overhead options, according to the experts.  If you place exhaust hoods directly over cooking appliances, this will help the effectiveness of the ventilation.  Also, mounting them low will keep them very accessible also optimizing them performance.  Last, but not least, when considering ventilation options for your commercial kitchen in St Louis, research makeup air and why this is well worth the investment when supplying your commercial kitchen with all of its St Louis Restaurant Equipment near University City MO.

HVAC Thermostat Diagnosis

HVAC Thermostat Diagnosis

thermostatIn the world of HVAC, there are many things that you may run across that require the consultation and even employment of a professional, like those available at your St Louis HVAC installation near St Peters MO.  However, sometimes, the repair may be manageable by you.  When it comes to replacing a thermostat, you may be surprised how simple this is.

We will only look at installing digital units here because there is really no benefit to installing a mechanical unit and we want to emphasize that only you can decide if this sort of maintenance is something that you can handle.  Don’t feel badly about the use of a professional when needed.  If you are having problems with your furnace or air conditioner, you can and should begin by checking the thermostat for proper operation.  Make sure you begin by shutting the power off to the furnace and/or ac unit and switch the fan from auto to on mode, according to your St Louis HVAC repair near St Peters.  At this point, if you are having furnace problems, you can disconnect the r and w terminals at the thermostat. Twist the two wires together and then turn the power back on. If the furnace comes on, the thermostat is bad and you should continue with thermostat replacement. If the furnace does not come on, the problem is not the thermostat and you would be wise to seek a professional HVAC repair company for further assistance.

If you are having ac problems, disconnect the wires from the r and y terminals and twist them together. Turn the power back on to the furnace and/or ac unit. If the system runs the thermostat is bad and should be replaced. If the ac still does not run, the problem is not the thermostat.  If you stay tuned to this blog, we will cover next, some of the questions surrounding the type of thermostat you may need when your HVAC system goes out.

Ventilation in Your Commercial Kitchen

Ventilation in Your Commercial Kitchen

ventilationAt the onset of your new restaurant opening and just before you put into use all that you have learned about how to effectively run a business, you really ought to take some time to research your commercial kitchen and it’s ventilation needs before you check the box for done.  While you should always check with official national and local fire codes, we’ve compiled a few answers for frequently asked questions to help you understand what to pay attention to when it comes to your kitchen ventilation, all of which we gathered from online research done on behalf of your Restaurant Equipment sales in St Louis near Overland MO.

You will need the right exhaust hood despite your choice in restaurant equipment. This decision has a few factors to weigh in while pondering.  A, which type of exhaust you will need based on what you will be cooking.  Also, there are two basic types.  One is for the style cooking that is heavy on grease and smoke such as grilling, broiling or frying.  Type 2 is for the heat and moisture that results in baking or steaming.  Obviously, depending upon your Restaurant Equipment in St Louis MO and the style of cooking you most often do, the hood option will vary.

Another requirement for consideration when looking at ventilation of your St Louis Restaurant Equipment near Overland MO, is the actual physical size and mounting height that should be determined based on the capture zone required.
Ventilation design and how your ducts run to the outside have a big impact on your needs as well. Ducts with longer runs that aren’t straight may require a higher exhaust rate since the air is traveling a greater distance.  When setting out to decide on ventilation for your Restaurant Equipment in St Louis, be sure to consult a professional.

Alternate Cooling Dynamics

Alternate Cooling Dynamics

alternativeDid you know that when it comes to cooling a space, there exist many different means to an end?  “Dais Analytics in Florida, in partnership with Oak Ridge National Laboratory (ORNL), is developing a new membrane-based rooftop air conditioner, which would use water as a refrigerant instead of conventional chemicals.”  We are always seeking, according to the research recently done on behalf of your St Louis Cooling Sales near O’Fallon, ways in which to function sans chemicals. Not only is this technology perfect for sweltering, humid summer nights, but it could also save 30%-50% in electrical consumption compared to today’s roof top units, not to mention work to cut out the chemicals that we are always doing our best to avoid.

“United Technologies Research Center in Connecticut is exploring electrocaloric, solid-state technology to develop a heat pump that will keep a space cool without using any chemical refrigerants. This technology is ideal for residential and small commercial buildings.” It’s small and quiet, and could result in 25% system efficiency improvement, along with possessing fewer mechanical parts.  It is much improved in the Cooling Maintenance in St Louis near O’Fallon with the likelihood of increased reliability that results in a total reduction of your chances of losing A/C in the midst of a heat wave!

One of the other goals in this movement and wave of technology is based, according to our research done on behalf of your St Louis Cooling Sales and Service near O’Fallon is to develop an energy storage system that integrates with HVAC units to reduce the overall energy requirements of A/C systems by utilizing waste-heat that would otherwise be lost in traditional systems. Integrating ground-level diverse energy storage with HVAC could reach overall energy storage efficiency of 70% and improve HVAC performance by 35%.

Green Alternative Heating

Green Alternative Heating

greenWe spent the previous post discussing the measures that one randomly selected University was taking in the way of energy efficiency with green technology.  “Green heating and cooling systems fall under two distinct categories: passive and active.” Passive systems work by maximizing nature’s ability to heat and cool without furnaces or air conditioners [source: Green Technology]. “Among other things, passive technology includes constructing homes with white or light-colored roofs that reflect the sun’s energy instead of absorbing it.” As a result, the amount of energy it takes to cool a house is less. Passive designs also use windows that can keep the heat out and cool air in.  They remind me of staying safe from a sunburn by sitting in the shade as opposed to the chemical (active ways) of sunscreen.

According to our recent research on behalf of your St Louis Heating and Cooling near O’Fallon MO, active designs use a variety of mechanical heating and cooling systems. These systems tend to run on solar power, geothermal power or other sources of green energy.  It’s a gradual one, but the increase in green-energy use, according to your St. Louis Heating Sales near O’Fallon MO, in recent years is slowly having an impact.

“For one thing, Americans saved more than $19 billion in 2008 by using various green heating and cooling systems [source: U.S. Department of Energy].”  The cost is high, though, according to your St Louis Heating installation near O’Fallon. “But these green systems are not cheap — some solar collectors cost between $30 and $80 per square foot for installation.”  There are incentive programs offered now and then by the government, but not consistent enough to really go into details here.  The next several posts will cover all of the other green heating and cooling methods we uncovered.

Passive Cooling

Passive Cooling

passiveOn behalf of your St Louis Cooling Repair near South County MO, we are on a regular search for new information and research to pass along to you, in regards to green energy and cost effective, environmentally friendly ways to handle the heating and cooling of your home or business.

Along those lines, did you know that the sun is the ultimate provider of green energy?  A couple things that make it so are the constant and renewable nature of Solar power, the fact that it is not about to run out anytime soon.  There are, according to our research on behalf of your St Louis Cooling Installation near South County, ways in which you can benefit and enjoy the power of solar energy without the effects of direct sunlight.  “Passive solar energy is simple, has little to no moving parts and requires minimal upkeep. Passive solar-energy systems are designed to use natural principals of heat transfer instead of machines such as furnaces and air conditioners [source: Passive Solar Resources].”

It turns out, according to all that we read for your St Louis Cooling Sales and Service near South County, passive solar technology uses the building’s walls, windows and floors to collect, store and release the sun’s energy. “However, passive solar homes still need mechanical equipment, such as a forced-air system or radiant flooring to keep the temperatures cool in the summer and warm in the winter [source: Arizona Solar Center].” Direct gain systems are supposed to be the easiest of them all in terms of installation of cooling capable solar panels in St Louis MO.  In such systems, sunlight passes through windows where the light is converted into thermal energy. The walls and floors directly absorb and store the heat energy. As long as the room temperature is high, the interior of the homes will hold on to the heat. “When the temperature drops at night, the stored heat radiates through the living space.”

Heating Efficiencies

Heating Efficiencies

greenWhen discussing efficiency, we know Heating and cooling in St Louis near Fairview Heights IL has much to share in the way of high end and late breaking technology.  We decided that we ought to research and share some details about efficient heating and cooling in St Louis on behalf of your Heating Installation near Fairview Heights IL.  Some of the latest news worth sharing, comes from the US coast.  “Santa Clara University is not only a pantheon of learning in the heart of California’s Silicon Valley, but it’s also a temple of green technology.”

In April 2011, just seven short years ago, the university managed to install 60 rooftop solar collectors to heat and cool its student center. Engineers designed the large-scale array to run the building’s hot water and air conditioning units and to gain green status, both in name and in energy savings.  As you can imagine, the system is very efficient.

How does it work and what are the results of this heating and cooling example in California, as found in the research done for your St Louis Heating sales near Fairview Heights IL?  “The solar collectors grab the sun’s rays and concentrate their captured energy, heating the building’s water to 200 degrees. University officials expect the system to reduce the building’s natural gas consumption by 70 percent each year and eliminate 34 tons of carbon dioxide from the atmosphere.”

The fact that they did this seven years ago and that many other Universities have followed suit in the desire to gain more green efficiencies, means that things will continue to go in the direction of more efficient heating and cooling methods abroad.  The cost is a factor in gaining all that we need to “go green”, but that will eventually change, or so the experts think.  In the meantime, stay tuned to your St. Louis Heating and Cooling Sales and Service near Fairview Heights IL for more details

From Salt to Freon in Refrigeration

From Salt to Freon in Refrigeration

refrigerationWhen it comes to refrigeration, there is vast history in its making and it, like many other modern day technologies, hasn’t been around forever, nor has it always provided the same level of efficiency and function.  As we learned previously, salt was an ancient form of meat preservation and actually worked.  “Salting food was a common preservation method before the invention of refrigerators.” Bacteria cannot survive in salt, so rubbing dry salt on food or covering it in a salt solution called brine can help keep meat and other foods from spoiling. The actual earliest form of refrigeration was seen by the few people who had the advantage of an icehouse to cool their food to preserve it.

In the early 30’s, Freon came to be.  According to our research on behalf of your St Louis Refrigeration Repair near Clayton MO, the biggest concerns surrounding Freon were environmental.  There was definitely proof that it was not the best thing for our environment and so scientists worked to modify and help minimize the potential damaging effects.  As a result, mandates and chemical make-up of Freon has evolved over the years.

Today, just about all American households and businesses have a refrigerator. It saves a ton of time in preserving foods, making it much more practical and convenient for our modern day, demanding lifestyles.  The food being preserved, according to your St Louis Refrigeration Maintenance near Clayton, is allowed to remain safe and edible for much longer periods of time as well.  “Because of the number of refrigerators used in homes, businesses, and transporting food and supplies, there is a significant need for trained professionals who can repair and maintain this equipment. HVAC technicians are well-versed in refrigeration technologies as it cools and dehumidifies. When these systems are in need of repair, they require knowledge in the theory behind the systems and knowledge in how the equipment runs to be able to fix it.”

 

Bottoming Cycles and Recycling in HVAC

Bottoming Cycles and Recycling in HVAC

HVACAs a follow-up to our previous posts regarding St Louis HVAC service near Overland and some of the heat recycling methods out there, we are going into more detail about bottoming cycles.  “Bottoming cycles are mostly used in industrial facilities in the chemical, paper, and primary metals sectors, as these industries often have high-temperature waste streams that are favorable for waste heat recovery. As much as 20-50 percent of the energy consumed in some industrial processes is ultimately lost through waste heat contained in streams of hot exhaust gas and liquids and through heat conduction, convection, and radiation from hot equipment surfaces and heated product streams.”

The goal, so to speak, is a simple one that applies to only some processes as others may not be safe enough when it comes to the waste they produce.   The overall energy efficiency of some industrial processes can be improved by capturing and reusing the waste heat, however, in situations where it makes sense from a safety and function point of view.  In our recent research on behalf of your St Louis HVAC installation near Overland MO, we discovered many facts surrounding the process to share here and in posts to follow.

“In some cases, such as industrial furnaces, efficiency improvements resulting from waste heat recovery can improve energy efficiency 10-50 percent. A study by the U.S. Department of Energy’s (DOE) Energy Efficiency and Renewable Energy office (EERE) identified research, development, and demonstration efforts to expand waste heat recovery practices in the U.S. industrial sector.”  In the aforementioned study, the waste streams analyzed showed that roughly 60 percent of unrecovered waste heat is low quality (i.e., temperatures below 450°F).  We will explore more regarding what this means as we further our research into heat recycling and HVAC in St Louis.