What is the average AC induction motor life expectancy? There are many factors that affect the life expectancy of an AC induction motor (or any electric motor). These factors can include input power problems, improper mechanical installations, malfunctions in the load, environmental factors, among others. Assuming that the motor is being operated under normal conditions, sized correctly for the application and within the manufacturer’s design requirements, it can last 15 years or more.  However, rewinding a motor usually is the result of a catastrophic failure in the motor’s insulation and windings and is usually due to a thermal breakdown. Hence, generally speaking, a motor that requires rewinding may not have been operated under normal conditions. Motors are frequently replaced rather than rewound due to costs, convenience and the claim that rewinding may reduce the motor’s efficiency.  Early failure of motor bearings is usually the result of improper mechanical installation causing undesirable forces acting on the bearings, or simply poor maintenance.

Bearings should be inspected regularly for lubrication and uncharacteristic noises. Their life expectancy depends on factors previously cited. If you are a human and are seeing this field, please leave it blank. Position / Title * State / Province / Region Zip / Post Code Congo, The Democratic Republic Of The Croatia (Local Name: Hrvatska) Heard And Mc Donald Islands Iran (Islamic Republic Of) Korea, Democratic People's Republic Of Macedonia, Former Yugoslav Republic Of Micronesia, Federated States Of Saint Kitts And Nevis Saint Vincent And The Grenadines Sao Tome And Principe South Georgia, South Sandwich Islands St. Pierre And Miquelon Svalbard And Jan Mayen Islands Tanzania, United Republic Of Turks And Caicos Islands Wallis And Futuna Islands Information needed for fast response.* Special Needs or Features Some residence halls and apartments are air-conditioned with either central air conditioning or window units.

In building that are not equipped with air conditioning students may not install room air conditioning units.ac unit repair costs Students who have a documented need for air conditioning will be assigned to an air-conditioned residence hall or apartment. where to buy ac window unitMedical conditions do not guarantee the selection of a specific room assignment, but only an assignment the meets the specific needs. water coming from air conditioner unitActual room assignment will be made by the Office of Residence Life. The following buildings have air conditioning:Mary’sLannonRashfordMooreTownhousesMerion GardensLancaster Courts (Window units) The following DO NOT have air conditioning:QuirkSt. Average life expectancy in South Africa continues to increase

The South African Medical Research Council (SAMRC) has released its latest report on mortality which reveals a steady improvement in life expectancy in the country. According to this Rapid Mortality Surveillance Report 2013, issued by the council’s Burden of Disease Research Unit, South Africa’s life expectancy has escalated to 62 years in 2013 – a staggering increase of 8.5 years since the low in 2005. “Improvements in average life expectancy in South Africa are reason to celebrate and can be attributed in major parts to the country’s vigorous response to the HIV/AIDS pandemic in recent years,” says Dr Debbie Bradshaw, Director at the SAMRC’s Burden of Disease Research Unit. The Rapid Mortality Surveillance Report derives key estimates of key health status indicators for the most recent years from data obtained from the National Population Register. The latest report, a third in the series, shows that all of the mortality related Negotiated Service Delivery Agreement targets set for the South African Health Ministry for 2014/2015 were already exceeded by 2013.

“South Africa has certainly made progress, however, the levels of mortality remain higher than those experienced in other middle income countries. It is unlikely that the county will meet its child and maternal mortality Millennium Development Goals,” Dr Bradshaw cautions. “The stagnation of the childhood mortality rates and the high level of maternal mortality are major concerns that need to be addressed by the health sector as well as through improved living conditions.” “The SAMRC, notes these findings and will focus on funding innovation in key areas that will impact on neonatal and maternal mortality. The SAMRC, by partnering with the Bill & Melinda Gates Foundation in “Grand Challenges South Africa” will fund research that aims to find solutions for maternal and neonatal health and identify interventions that will reduce the deaths of mothers and their babies” says Prof Glenda Gray, President of the SAMRC. NOTES TO THE EDITOR: The table reflects a series of life expectancy reports. 

The complete report can be accessed via the SAMRC’s official website: www.mrc.ac.za/bod/reports.htm Mobile: +27 82 804 8883 Director: Burden of Disease Research Unit Tel: +27 21-938 0427Bedrooms, offices, garages, and server rooms are often warmer than desired because of a lack of proper ventilation or poor air circulation. This is precisely where portable air conditioners come in: They're small, portable cooling systems that quickly cool rooms without access to central AC. They're also great for spot cooling specific areas like your bedroom, apartment, or office. For easy accessibility to the topics in this guide, use our topic list: A portable air conditioner is used to provide supplemental cooling to specific areas in your home or business. They don't require permanent installation, but most require a window for ventilation or a separate space to direct the system's exhaust. Most models dehumidify as they cool, and most are also easily mobile. Portable ACs differ by brand, maximum cooling area, venting configuration, energy efficiency, and special features–like multiple operating modes, remote control operation, programmable timers, and specialized air filters.

The most important thing to determine when choosing a portable air conditioner is the size. An air conditioner that is too small won’t keep up with the cooling demands of your environment. If it’s too large, the AC will cool the area and shut down before removing excess moisture from the area–leaving unwanted moisture in your air. The following list is an estimate of the coverage area to expect based on a portable AC’s BTU (British Thermal Unit) rating, which is the unit used to measure cooling power. Use the estimates below to find an appropriate model for your room: Note that you should increase the size and power of your portable AC if: If you need help determining the right size for your needs, watch the video below or call our product experts at 1 (800) 934-9194 for a free consultation and an expert recommendation. All portable air conditioners vent hot air as part of the cooling process. This hot air is typically vented out of the area being cooled using an exhaust hose and can be vented out of a window, drop ceiling, sliding glass door, or through a wall.

Most portable ACs come with window kits or drop ceiling panel kits that include the needed exhaust hose and parts. For more detailed information about ventilation, read our article How To Vent Your Portable AC. Portable ACs can be single- or double-hosed for exhausting hot air and pulling air in to cool. Some models have both exhausting options. Here is a breakdown of both options: When a portable AC cools indoor air, it also acts like a dehumidifier and removes water from the air. Portable ACs have different ways of handling this moisture buildup: Portable ACs tend to be energy efficient and can save you money on your monthly electric bill. Efficiency is measured by the portable AC’s Energy Efficiency Ratio (EER); generally speaking, the higher the EER, the more efficient the model. A rating of 10 is typically considered a very good rating for portable ACs. Read our Lower Your Energy Bill with a Portable AC article for more about portable air conditioners and efficiency.

Most portable ACs use a typical household 120-volt power outlet and require no special wiring. However, some powerful portable ACs, such as commercial-grade units, may require special outlets. Read the product description and specifications to determine the power requirements when selecting a room air conditioner. Portable air conditioners make noise, because they use motorized fans and compressor systems that cool and circulate the air. Many people consider it “background noise,” others are concerned with appliance noise. If you’re concerned about noise in your room, we suggest buying a portable AC with special features that minimize the sound. Features to look for include a programmable timer, multiple speeds, and a Sleep mode. Some portable air conditioners list the decibel rating of the system at each fan speed. You can compare these ratings to other indoor appliances, but remember sound is different to each individual. Many conditions can affect the sound level, such as the position of the unit, if you have carpeting, what type of furniture you have, and the fan speed.

For easy reference, use the comparison chart below to get an idea for the level of sound a portable air conditioner will make based on its decibel measurement. Maintaining your portable air conditioner is simple and requires very little effort. Most systems work as a "set it and forget it" appliance. However, to get the most out of your investment, you should keep up on general maintenance to ensure it has a long lifespan. Clean air filters as needed (usually once every summer). Ensure it’s installed correctly for maximum efficiency. Drain your portable air conditioner before storing it. Check your warranty for more specific information on the parts and services covered. Cooling Server and Computer Rooms Additional cooling is needed in many server rooms, and portable ACs are often used as supplemental or primary cooling systems in these areas. When considering an AC, overestimate the amount of BTUs needed to cool the space; these areas get very hot with electric equipment running.

Exhausting your AC is another consideration, because many server rooms don’t provide access to windows. Our customers usually direct the hot air exhaust hose into a drop ceiling or through a hole in the wall in these cases. Check out our suggestions for computer/server room portable ACs. Portable ACs that offer a Heat mode generate heat either through a heat pump or electric heater. Electric heat is suggested for cold, northern climates while heat pumps work best in moderate temperatures. In winter months, a heat pump extracts heat from outside air and disperses it throughout the area. It can reverse its system to cool areas as well. Heat pumps tend to be more efficient than electric heaters because they simply transfer heat. In contrast, units with electric heat convert electrical energy into heat using a heat strip in the unit. While this method uses more electrical power to heat than a heat pump, it also can handle colder environments. Interested in a portable AC with heat?