Friday, March 1, 2013

Mini Split Sizing. The Different HVAC Jobs.


Mini Split Sizing.Installers. Technicians, Salespeople.



Heating, ventilating, and air conditioning, commonly referred to as HVAC, involves the technology that keeps homes and other buildings comfortable for their inhabitants. There are a variety of HVAC jobs that are available to people who are interested in this field. Some of these jobs include installers, technicians, salespeople, and managers.


 


The starting position for most people interested in this field is HVAC installer. Usually an HVAC installer must be a high school graduate and have training in heating and air conditioning systems or related experience. He needs to have basic math skills and the ability to read and understand blueprints, as well as be able to understand HVAC and electrical codes and have a good mechanical aptitude. Considered a journeyman, the installer's job involves installing, altering, inspecting, and maintaining air conditioning and heating equipment.


Mini Split Sizing Calculator. Responsible for the Installation of Heating.



An HVAC installer may be responsible for the installation of heating and air conditioning equipment on both commercial sites and in residential properties. His general knowledge should include a fundamental understanding of wiring, forced air systems, and refrigeration systems. Additionally, he must identify any needed HVAC repairs and replace any parts or components as required. An installer should know how to track and fix mechanical, electrical, and plumbing systems and their associated controls.



Sizing a Mini Split System. Know How a Circuit Breaker Works.



As a result, the HVAC installer should know how a circuit breaker works so he can make the proper connections for any HVAC equipment being installed. This involves being able to determine the right size wires to run and knowing the appropriate breaker to use. In working with forced air systems, the HVAC installer may be required to identify and install the required sheet metal to use for the duct work. In working on refrigeration systems, part of the HVAC installer’s job is to establish the piping for the chilled and hot water systems. He should have a clear understanding of the piping that must be incorporated into the system.



Mini Split Heat Pump Sizing. HVAC Jobs as a Designer or Engineer.




Another HVAC job is the HVAC technician. Along with the installer position, this job requires a good overall knowledge of HVAC systems and processes in order to troubleshoot and make repairs. Not only does the technician need the basic mechanical and electrical skills associated with other HVAC jobs, he must also be able to interact with customers well.


 


Many people who put time into this career elect to move into HVAC jobs in sales and management. These jobs might include HVAC service manger, foreman, estimator, or contractor. With additional schooling and training, one might work toward HVAC jobs as a designer or engineer.


 


Mini Split Heating and Cooling. Troubleshoot of heating & cooling problem.


Mini Split Heating and Cooling. Right Over the Phone.



Just because your local expert is a wonderful person doesn’t necessarily mean you want to rearrange your day to have him or her out for a service visit. Instead, try these useful tips. They’re just as easy as picking up the phone. If you have an system with remote access, you can set up your access to allow your trusted an expert to diagnose potential problems right over the phone.



Alpine Heating and Cooling. System not Running.




What to do if your air conditioner or heat pump isn’t cooling properly. Check to make sure that your control or thermostat is set in cooling mode. Make sure that the temperature is set cooler than the current indoor temperature. If it isn’t, your system won’t know to provide cooling. Make sure your outdoor cooling (condensing) unit is running. If not, check the circuit breakers in your home’s circuit breaker box (or electrical panel). They should be in the ON position.


 


Check the main power switch for your outdoor unit, usually found within a few feet of the unit in a box mounted to the exterior of the house. Make sure it’s in the ON position. Ensure that the blower motor in your furnace or air handler (fan coil) is running. If the system is set for cooling, the blower motor should be running. If not, check to make sure your indoor unit switch is in the ON position.



Split System Heating and Cooling. System not Cooling Enough. 





Check the filter for buildup. If you have one-inch-thick furnace filters, a once-a-month change is recommended. Two-inch-thick filters—and other high-capacity pleated filters—usually only need to be changed every other month, depending on the type. If you don’t change it, the filter will eventually become so full, it will block the proper airflow and cause your outdoor air conditioner unit to shut down.


 


Check all return air grilles to make sure they are not blocked. Return air grilles are larger and are located on a wall or the ceiling in newer homes. Older homes frequently have return air grilles on the floor. Check all supply registers to make sure they are open and blowing air. If you still don’t feel that refreshing flow of cool air throughout your home or your system is under-delivering cooling, it’s time to contact your local Carrier expert for service.




1 Ton Mini Split. Signs that indicate a system is struggling.



Your system is struggling to keep up and seems to be turning itself on and off frequently. Your indoor summer humidity levels seem unusually high. You hear your indoor-unit fan coming on but the air from the registers isn’t cool or the fan is turning on and off more frequently than usual. NOTE: If your system control has a “Constant ON” feature, you will not always feel warmth, even though air may be blowing.

Gree Mini Splits. Air Conditioning Maintenance and Efficiency.


Gree Mini Splits. What you need to know to stop your air conditioner or heat pump from losing its cool.



No matter how energy-efficient your air conditioner was when it was installed, it can lose efficiency if not properly maintained. The good news is, it isn’t hard, time-consuming or expensive to do the kind of upkeep that can help your unit last for years:


 


Change your air filters regularly. A clogged or improperly installed air filter makes your system work harder. So, if you forget to change your filters, you might notice you’re paying more for air conditioning that you’re not enjoying nearly as much. Be sure not to block your floor, wall or ceiling vents. When drapes, furniture, toys or anything else blocks the vents, it will restrict the airflow—and decrease the system’s efficiency and life span.


Gree Air Conditioners. Check your outside condensing unit.



Check your outside condensing unit periodically to make sure it isn’t covered up or clogged with leaves or debris. Give it space—at least a foot—by cutting back shrubs or tall grass. Air needs to flow in through the sides to cool the coil.


Check the drain system to make sure it isn’t clogged. Because your air conditioner removes humidity from your home during the cooling season, you should notice water trickling from the condensate drain of the indoor unit. Keep in mind that the drainage will be limited if you live in a very dry environment. Don’t try to turn your home into an icebox. You shouldn’t run your system in cooling mode when outdoor temperatures are lower than 55°F/12.78°C unless your outdoor unit is modified to handle cooling in colder weather.


Gree International. During an air conditioner or a heat pump service call, your expert will typically.



Check your system’s operation to determine its condition and if repairs or adjustments are needed. Check refrigerant charge levels and air flow. Make sure all electrical connections are sound and components are working properly. Check for secure physical connections of individual parts. Check and clean the indoor and outdoor coils. Check and clean the condensate drainage system. Clean and adjust blower components. Check the filters, and replace or clean them, if needed.


Gree HVAC. During a furnace or boiler service call, your expert will typically.



Check the unit and its physical support for any obvious signs of deterioration.


Check the system’s operation to determine its condition and if repairs or adjustments are needed. Inspect all flue gas passages and venting. Inspect and clean (as needed) the pilot/ignition system, burner assembly and combustion area. Check and clean the gas/oil valve. Check all gas or oil connections, gas/oil pressure and burner combustion. Check for secure physical connections of individual parts. Make sure all electrical connections are sound and components are working properly. Check the control or thermostat for functionality.

Lg Mini Split AC - Ventilation and Moisture Control.


Lg Mini Split AC - Moisture Accumulation.



Moisture accumulation within a building structure can cause problems such as water


stains, ice damage, peeling paint, wood deterioration, mold and mildew. Water forms when water vapor migrates through the structure and condenses on a cool surface.


 


There are three basic ways to minimize potential water vapor condensation problems in attics or and walls: Provide ventilation to reduce excessive water vapor build-up within the home;  Ventilate building sections so that excessive water vapor is dissipated to the outdoor air;  Use vapor retarders to limit water vapor transmission into building cavities. Ventilation and circulation with outdoor air are the major moisture control strategies for attics and crawl spaces.


 


In most parts of the country, passive ventilation is important for attics and crawl spaces, and mechanical ventilation is desirable for kitchens, laundries and baths. All of these strategies are designed to remove water vapor from the structure so that condensation will not occur. Vapor retarders limit the migration of water vapors from warmer areas to the cold surfaces in walls, roof/ceilings and sometimes areas belo ors. Vapor retarders reduce the amount of water vapor available for condensation.


Lg Mini Air Conditioner - Attic Ventilation.



We recommends the following widely used ventilation strategies: Provide ventilation for each separate space to the outside with ventilating openings protected against the entry of rain and snow. The total net free ventilating area shall be no less than 1/150 of the attic or area if no vapor retarders are used, or 1/300 of the attic or area when a vapor retarder having a permeance of one per or less is used. 



AC Lg Hercules Mini -  Steps to Determine Attic Ventilation Needs.




Measure area to be vented. Divide this number by either 150 (no vapor retarder) or by 300 (vapor retarder in place). Multiply by the appropriate factor from Table 1 (on the next page) to learn the total gross vent area needed. Determine where vents will be located.  Cathedral,  Bt and hip roof/ceilings with vapor retarders need a vent area of 1 sq. ft./300 sq. ft. of ceiling. Total ventilation may be achieved by placing half of the required vent area at each eave. Without a vapor retarder, the vent area should be doubled. The most effective ventilation is provided by a combination placement of the vents with 50 percent of the area at the roof peak and 50 percent at the sof or eaves.


Mini Split AC Systems - Net Free Vent Area.





The stated vent areas for attics, roof/ceilings, and crawl spaces refer to net free areas through which air can pass unobstructed. When screening, louvers, or rain/snow shields cover vents, the area of vent openings should be increased to offset the area of the obstruction. Use manufacturers’ stated net free areas whenever available. If no information is available, use the conversion factors for determining gross area of vent openings listed in Table 1. Caution should always be exercised to assure that ventilators are not obstructed. Blocking or baffles should be used at the eaves to keep insulation material away from soffit vents. Recommendations for air space between the roof sheathing and the insulation may vary. As a general rule of thumb 1” is often used.




Lg Mini Split Art Cool - Capabilities, Space and BTUs,


Lg Mini Split Art Cool. Capabilities.



The BTU is a unit of British energy. It's short for British Thermal Unit is used primarily in the United States. In most of the areas of technology and physics has been replaced by the joule, which is the relevant unit of the international system.



In North America, the term "BTU" is used to describe the heat value (energy content) of fuels, and Also to describe the power of heating and cooling systems, Such as furnaces, stoves, barbecue grills, and air conditioners. When used as a unit of power, Btu per hour (Btu / h) is the correct unit, though this is Often abbreviated to just BTU.


Lg Art cool Ductless Air Conditioner. Spaces.



The capacity of air conditioners is measured in BTU's, although it is not necessary to know that indicates this unit. But what is important to know is that for every 12,000 BTU's have 1 ton of cooling or heating.



BTU requirements depend on more than the volume to be heated and the temperature range. Other important factors include the rate of heat loss through the ceiling, windows, walls and doors. Air leakage and poor insulation BTU requirements increase, as normal ventilation.


Lg Ductless Air Conditioning System BTUs.



Determine how many BTUs are required to heat a square meter is a key point in the process of selecting the suitable heating apparatus.



Keep in mind that for humans, the comfort zone is between 69 and 77 degrees Fahrenheit with a relative humidity between 40 and 60%, any value below or above these will be unpleasant, annoying and slightly healthy. Finally, remember that a cooling system will be efficient while the enclosure is ideally airtight and that the openings like doors and windows tend to reduce the efficiency and therefore increases power consumption.


Lg Ductless Art Cool. Measures.



The BTU is Essential When Making Plans for installation of air conditioning, Because this unit will depend on our convenience and comfort, if this is not right, not only will not get the Desired climate, but incorrectly using the system will use, and damage or part of the unit. Talk to us, we will help.



Now air conditioners are all abilities, from portable units to central systems, but the MOST important thing is to choose the one to Achieve the Desired atmosphere.Los Minisplit are offered in capacities of up to 36,000 btu, central air conditioning on we discover 60,000 btu.

Thursday, February 28, 2013

Mitsubishi Mini Split Air Conditioning. IAQ & Basement!


Mitsubishi Mini Split Air Conditioning. Moisture Control Issues.



Before beginning any conversion of basement space into living space, check the basement for leaks or other signs of moisture problems. Because damp basements promote biological growth, including molds, they are not healthy places to live in. Thus, any moisture problems should be corrected before you proceed.


 


Correcting moisture problems may be as simple as redirecting downspout runoff away from the foundation. It may involve re-grading the ground around the house so that it slopes down away from foundation, or venting the dryer to the outside (something that should be done in all homes). Sometimes, however, there are more extensive problems which can be expensive to correct. In any event, the problems should be addressed before you begin other work.  Read more about moisture control.


Ductless Air Conditioning Cost. You should test your home for radon.



Because EPA recommends testing for radon on the lowest lived-in level of a home, even if you've previously tested, if you have not tested in the basement, you should test again. Because fixing a radon problem will usually be easier and less expensive before the basement is finished, you should test before you begin your remodeling project.


Mitsubishi Air Conditioning Prices. Ventilation and Combustion Appliances.



Good ventilation protects both your health and your home.  The basement should be included your home's ventilation strategy. If your home currently has no mechanical ventilation this may be an opportunity to install a system. Read more about ventilation.


 


General recommendation for combustion safety should be followed. Because you are changing the basement and effecting how air moves in the home, you should have a professional check how any combustion equipment, pre-existing as well as new, operates after you have finished work in the basement to make sure that it isn't backdrafting.


Mitsubishi Ductless Air Conditioning. Flooring.



Flooring must not only be resistant to harm by water, but should also prevent water which does get on the floor from penetrating to the area immediately below the surface (e.g., the padding beneath a carpet) where it can be difficult to dry and can lead to mold problems or cause damage.


 


Do not install carpet near water sources or areas where there is a chronic moisture problem such as around sinks, tubs, showers, and toilets. Basements may require special attention in this regard. There are two potential problems with installing carpet on a concrete slab. The first is the possibility that water in the form of liquid water and/or water vapor will come up through the slab, causing chronic dampness in the carpet leading to mold growth. This problem is not unique to carpets, and it highlights the need to address moisture up front.


 


The second is that concrete slabs, especially those without insulation underneath, are often colder than the air in the basement. In fact this is a situation which may be more likely with carpet which insulates the slab making it even colder. In this situation, moisture in the air can condense on the cooler slab, exposing the carpet to moisture and promoting mold growth.

Comfort Air Mini Split. Help to Ensure Good Indoor Air Quality.


Comfort Air Mini Split. Use Energy Efficient Construction and Control Water and Moisture.



Building tight, well-insulated homes reduces heating and cooling costs. When combined with mechanical ventilation and pollutant source control, tight, energy- efficient homes are comfortable, economical, and promote good health. Indoor air quality and energy efficiency walk hand-in-hand.


 


Controlling moisture in a home can help reduce mold, mildew, and other biological growth which are linked to a variety of health effects. Methods to control moisture include building an energy-efficient home with proper air-sealing, proper use of vapor barriers and vapor diffusion strategies. The entire building envelope, from the foundation to the roof, should be designed to not only prevent moisture entry, but also to allow any moisture which does enter a means to escape. Proper ventilation can help ensure that indoor humidity levels remain at acceptable levels.



Eliminating or controlling individual sources of pollution are important steps in providing good indoor air quality. By using appropriate materials, isolating materials which may cause problems, and providing adequate ventilation, the levels of pollutants indoors can be greatly reduced. Included among these pollutants is radon, for example. If you live in a high radon area, you should consider using techniques to reduce radon entry when building your addition.


Split Systems HVAC. Provide mechanical ventilation and Use combustion equipment wisely.



Proper ventilation removes or dilutes stale air from your home, and provides cleaner air from outdoors. There are many approaches to ventilation which achieve these goals. So, "build it tight, and ventilate right."


 


The selection, installation, and integration of combustion equipment with other systems is an important part of building a home with healthy indoor air. If combustion appliances are not installed, maintained, and operated properly these appliances can produce combustion pollutants that can damage your health, or even kill you. In addition, improperly vented appliances can add large amounts of moisture to the air, potentially resulting in both biological growth, and damage to the house. Fortunately, builders can take steps to reduce the risks for combustion equipment.


Comfort Star Mini Split. Understand how to Properly Operate and Maintain the Home.



How a house is operated, maintained, and lived in is one of the most important factors affecting indoor air quality. Planning for this maintenance during the construction process, and learning what's important will not only promote good indoor air quality, but will also decrease problems with the physical structure of the house over time.