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Friday, 1-Feb-2013 16:40 Email | Share | Bookmark
How To Maintain Your HVAC System

Think about your HVAC unit like a vehicle. It has a motor and runs off a particular kind of energy. In the same way that you change your car's oil, spark plugs, charge the battery, etc, these HVAC motors also need regular attention to run efficiently and successfully.

Air conditioning systems do more than just cool the air: they reduce humidity, and also remove dust and dirt by moving the air through filters. The easiest and typically the most effective upkeep is to regularly change or clean your air filter, which is located inside the system's heater, air handler or attached ductwork. When these filters become stopped up with dirt, the system has to work harder to do its job. This wastes energy and can make utility bills rise. Depending on the quantity of dust in the air, filters can become blocked in just a month or 2 of operation. Most household systems have non reusable filters. These must be examined every 2 months (as soon as a month throughout peak usage) and changed when required. Permanent filters must be cleansed in accordance with the manufacturer's directions. Under no circumstances must you operate your system without filters. To do so could possibly lead to a requirement for even more frequent clean-up of the heat exchangers.

One of the easiest benefits to document is exactly how HVAC upkeep impacts energy efficiency. Facilities where appropriate HVAC upkeep is finished will definitely make use of a minimum of 15 to 20 percent less energy than those where systems are permitted to degrade. For example, think of the operation of a central building chiller. Building chillers normally are the solitary biggest user of electrical power in a facility. To keep them operating as efficiently as possible, upkeep jobs must be done on a day-to-day, weekly, regular monthly and yearly basis. Let them lapse, and efficiency will definitely decrease, increasing energy usage. Start with the chiller operating log. Work with the chiller manufacturer or a service business to translate the log information into an operating efficiency curve for the chiller.

Establish a comparable curve for what the efficiency of the chiller might be if all upkeep were done at the advised intervals. The difference between the two operating efficiencies can be translated into energy and expense savings. Due to the high energy usage of the equipment, even little rises in efficiency will definitely lead to sizable cost savings. While the energy cost savings estimates for chillers, boilers, and several some other HVAC systems is straightforward, others cost savings estimates may not be. Take into consideration outside air dampers. Air dampers require regular upkeep to respond properly to the temp control system's demand for ventilation. If the damper linkage is out of alignment, or if it sticks open, more ventilation will definitely be introduced than required, needing the system to make use of even more heating or cooling energy to condition that air.

Contrary to popular belief, air conditioners do not consume refrigerant, like a vehicle consumes oil. Under perfect conditions, you will definitely never ever need to add or alter the refrigerant in your air conditioning system. If you do find that your refrigerant levels are low, this indicates a crack in your system which must be fixed before you add refrigerant. While a lot of new system links are welded to decrease cracks, several older units (8 years or older) were connected with mechanical flared fittings which can move loose over the years, creating cracks.\n


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