Dec 15, 2013 Environmental Controls
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Remote Sensing Auto Saver Programmable Thermostat with Auto Changeover – Energy Star
Sep 24, 2013 HVAC
HVAC System Maintenance
Before you get hit with holiday chores, save yourself some money by having your heating and cooling system checked and serviced. For heat pumps one thing is a must: Outdoor and indoor coils have to be clean. Let me explain why this is very important without being too technical. There are two major tasks that have to be present before a heat pump works properly on each cycle: Air movement across the indoor and outdoor coils and refrigerant pressure.
Heat PumpsTo provide heat during winter, heat pumps work by moving air across the outdoor coil. The refrigerant in the system picks up heat from the outside air that is being forced through the coil. The compressor pressurizes the refrigerant and raises its temperature. Heated refrigerant moves inside your home to the indoor coil, air is forced through the coil where it picks up the heat produced by the heated refrigerant and finally the warm air is delivered to the occupied space.
Outdoor coils exposed to the ambient, suffers considerable deterioration due to dirt. On the other hand indoor coils, which are exposed to damp and dust can be clogged easily and can lead to air restriction. Clogged outdoor and indoor coils can slow the air flow being forced across. Outdoor and indoor motors have to work harder to maintain the designed air flow, so they consume more electricity. This condition leads to premature failure of electrical components, and lost of efficiency and comfort.
In the summer heat pumps works in reverse operation. Whether for heating or cooling, improper maintenance can be grounds for problems.
If well maintained, it’s most likely that you will get the comfort and efficiency you expect from the equipment. If not it will deteriorate.
Furnaces, which burn fuel to produce heat, are subjected to more stringent rules of care. One of the reasons is Carbon Monoxide leaks. CO is a poisoning gas and comes from different appliances in a home. Furnaces in general are one of the largest sources of CO because of the amount of fuel they consume.
Forced air furnaces are design to vent out the combustion gases to the atmosphere through the flue pipe. Combustion gases, can escape into the living area of the home, if the flue pipe is blocked, damaged or disengage, or if the heat exchanger is cracked.
Flue systems and heat exchangers have to be maintained through the life of the furnace to prevent CO leaks and corrosion.
Periodic maintenance to your heat pump or furnace will prevent future repairs and unwanted costs. It is best to check the heating system in the fall and the cooling system in the spring.
Happy holidays from your friends at Clima Air & Electric.
Jose Jesus Cervantes, HVAC & Electrical Contractor.
Aug 5, 2013 HVAC
The Air Conditioning Manual was written to assist entry-level engineers in the design of air-conditioning systems. It is also suable — in conjuction with fundamental HVAC&R resourcee material — as a senior- or graduate-level text for a university course in HVAC system design. The manual was written to fill the void between theory and practice — to bridge the gap between real-world design practices and the theoretical caluclations and analytical procedures or on the design of components.
* Helps engineers quickly come up with a design solution to a required air conditioning system.
* Includes issues from comfort to cooling load calculations.
* New sections on “Green HVAC” systems deal with hot topic of sustainable buildings.
Air Conditioning System Design Manual, Second Edition
Jul 31, 2013 HVAC
The growth of mold in HVAC (Heating, Ventilation, and Air Conditioning) systems is a main contributor to poor indoor air quality. Mold spores are a prevalent part of bacteria and dust in the home. Ignoring a problem or potentially harmful situation involving poor indoor air quality can render an even more serious issue, so it should be taken care of immediately.
Mold allergies are a serious problem for many people. Those that are often exposed to poor indoor air quality are at a higher risk for developing some sort of respiratory complication. These people are often those that don’t even know that they could be vulnerable to such hazardous allergens.
The cause of inadequate atmosphere quality can stem from faulty HVAC equipment, poor air circulation, inappropriately operated or preserved HVAC systems, and not having a sufficient amount of external air. All of these things can cause the growth of the allergen, mold. Mold spores can lead to congestion, asthma, and other breathing difficulties for those that become exposed. During the time that HVAC systems operate they are able to transport considerable amounts of recirculated and outside air through the home or occupied space. The system becomes the channel through which toxic entities are spread.
It has been found that ultraviolet radiation is the most effective way to combat mold and other airborne bacteria in the home. UV rays can be used individually or can be combined with an EAC (Electronic Air Cleaner) to prevent or diminish the health risks that mold presents. UV light is able to restrict the reproduction process and growth of germs, allergens, and bacteria, such as mold.
To successfully kill microorganisms, found in an indoor atmosphere, ultraviolet energy waves are used. The UV radiation must make direct contact with the harmful bacteria to make sure that it is exterminated. The ultraviolet rays then infiltrate the organism, causing the molecular bonds to stop functioning properly and inducing mutilation of the cells. This remedy of doing away with mold spores in the HVAC system kills or sterilizes germs, rendering them unable to reproduce. The germs are either killed or sterilized, leaving them unable to reproduce. This is a guaranteed solution to reducing the allergens in the atmosphere in your home and improving your family’s overall quality of life.
Indoor air quality is an issue that is quickly becoming a priority problem in homes across the nation. Making sure that you and your loved ones are protected from harmful toxins is very important and should not be taken lightly. Having your HVAC system inspected and keeping up with its maintenance can mean the difference between breathing poor quality or high quality indoor air. Why not make the place that you spend a majority of your time a safer place to live and breath.