This Automated Logic M-Stack provides control for multiple pieces of HVAC equipment and integrates network communication all in one single stack. This direct digital control system is integrated with pnuematic controls. DDC allows automated HVAC control processes to take place and adds higher efficiency to an HVAC system. Continue reading “DDC – HVAC Control – Automated Logic M-Stack” »
Mechanical Code Book
2) Thank you!! I am training to become a home inspector and the info contained on this site is helpful in identifying issues that require a HVAC professional to resolve. Read more…….
You’re welcome! I understand that everything at High performance HVAC is limited and there is so much more to learn about and for me to write about when I get the time for it. Don’t limit yourself to just what is contained on High Performance HVAC as there is so much more to learn as far as HVAC training and learning air conditioning and heating systems. Additionally, some of that knowledge you learn will come with experience so even after studying air conditioning and heating and other areas of home inspecting there is more to learn in the future that only comes with time and experience. Continue reading “Home Inspector HVAC Training” »
Tankless Water Heater
I have been transformed into a believer of tankless water heater systems. Anyone who has read the About Us page at High Performance HVAC along with my friends and family and some fans of the site know that I moved to Ukraine about a year ago for professional reasons. When I first arrived in Ukraine it took a while for me to adapt to the culture, language, services, and way they do things here. Power failures, water outages, and occasionally the natural gas outages are quite frequent here although it is tolerable and a minor inconvenience. Many of the outages occur at night when many people are sleeping but occasionally during the day when you need it. I must include that this has been a big adventure and I have learned much and to tell you if you are living in the States or Western Europe you have it good but that doesn’t mean Ukraine is bad it just means they are little behind and hopefully will quickly catch up. I have not seen a standard water heater here like the common water heaters with tanks in the States. All the systems I have seen here are tankless including the water heaters in the apartment I rented and now in the house where I live. I am sure there are tank-type water heaters here like in the States but I have not seen them yet.
Air Conditioning and Heating Air Handling Units provide air flow throughout the duct systems providing conditioned air throughout the spaces served by the duct work. Air conditioning and heating systems rely on air handlers to move the air throughout the system. The HVAC air handler unit also conditions the air. The air handler heats air for heating and cools air for air conditioning. Continue reading “AHU – HVAC Air Handler Unit Construction Phase” »
Air Handling Unit Components: Air Handling Unit Heat
There are many different types and arrangements of heating systems for air handling units and these types of heating systems and arrangements of heating systems vary from commercial to residential. Some air handling units do not have any heat source inside them at all but have remote heat for zoning. The air handling unit provides the air flow and the remote heaters provide heat for zoning. Sometimes the air handling unit is a VAV air handling unit and other times it is just to provide air for a duct heater whether the duct heater is gas fired or electric. For air handling units which some have heating systems inside the five main ways of providing heat for air handling units are:
Liquid to Vapor Propane Evaporators
The propane evaporators serve a large complex where natural gas is unavailable. The complex needed a fuel for boilers for heating and domestic hot water so these propane evaporators were installed to along with two very large propane tanks to handle the heating needs of the complex. As a liquid propane has a specific weight of .504 (where water is 1) and propane vapor has a specific gravity of 1.5 (where air is 1) making propane vapor 1.5 times heavier than air. It is important to note that propane vapor is heavier than air as propane can build up in low spaces and create a hazardous condition. One gallon of liquid propane will expand 270 times when it becomes a vapor and at atmospheric pressure propane liquid will boil and a become a vapor at -44 degrees Fahrenheit. For each gallon of liquid propane 36.6 cubic feet of propane can be realized after evaporation making it an ideal fuel for remote locations where other fuels are either not available or too costly. Propane evaporators are not commonly used except in large commercial and industrial areas where a lot of propane is needed to serve a large amount of heating systems and applications. Expanding liquid propane through evaporators offers an ideal large capacity propane source for heating systems. Many residential systems strictly used vapor propane for their heating needs and do not need propane evaporators or a propane evaporator. Propane heating systems are extremely popular in rural and remote areas where natural gas is unavailable and oil is not desired to be used for a heat source. Propane evaporators offer a controlled way of changing liquid propane to vapor propane for large capacity systems. Continue reading “Liquid to Vapor Propane Evaporators” »
The oil burner and oil controls provides the main source of heat for this oil furnace. The oil burner comprises of an oil pump, a burner electric motor, a burner blower, a step-up transformer, an oil ignition control, an oil burner gun and oil nozzle(inside not viewable here). The burner electric motor is directly linked to the blower and the oil pump and when the electric motor starts (controlled by the ignition control) the pump begins pumping oil while the blower provides primary air to the combustion chamber.
Most air conditioning and heating systems require some form of duct work to channel or direct the air to places in the dwelling where the conditioned air is needed. There are many types of duct work available and often times the duct work can make a big difference in your utility bills. For that reason, it is important that the duct work is installed correctly by qualified installation technicians. A poor installation job will result in poor performance, bad air flow, leaky duct work systems, and higher than usual utility bills. Another important factor in the installation process is to make sure the duct work is sized properly. Over sizing systems cost more and does not maintain the desired air flow and undersized duct work causes the system to strain mechanically and can be noisy. It is important that you have qualified people design and install your system from start to finish so that you get the best and highest performing duct work system money can buy. It is also critical that the air conditioning duct work system be designed for the air conditioning load. Continue reading “Duct Work” »
HVAC manufacturers are always improving the energy efficiency of their products using innovation and modern technology to help. HVAC manufacturers are required by the government to increase the efficiencies of HVAC equipment sold. Usually this is a mandate passed down by congress that will set a standard for a minimum efficiency of air conditioners and heating systems. Usually this mandate is the result of HVAC manufacturers, the department of energy, and other industry concerns meeting and agreeing to a new minimum that is more efficient and utilizes less energy than previous models and designs. Continue reading “HVAC Manufacturers” »
