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By: Brendon Bruce

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Sunday, 9-Sep-2012 12:15 Email | Share | Bookmark
How To Maintain Your HVAC System

Think about your HVAC unit like an automobile. 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 electric motors also require routine attention to run efficiently and effectively.

Air conditioning systems do more than simply cool the air: they lower humidity, and also take out dust and dirt by moving the air through filters. The simplest and often most successful upkeep is to consistently change or clean your air filter, which is found inside the system's furnace, air handler or attached ductwork. When these filters become obstructed with dirt, the system needs to work more to do its job. This loses energy and can easily make utility statements rise. Depending on the amount of dust in the air, filters can easily become blocked in simply a month or 2 of operation. A lot of domestic systems have non reusable filters. These must be examined every 2 months (once a month during peak use) and replaced when necessary. Long-term filters must be cleaned in accordance with the manufacturer's directions. Under no circumstances must you operate your system without filters. To do so might lead to a demand for more frequent cleaning of the heat exchangers.

One of the simplest advantages to document is how HVAC upkeep affects energy efficiency. Facilities in which correct HVAC upkeep is finished will certainly make use of a minimum of 15 to 20 percent less energy than those where systems are permitted to decline. For example, think about the operation of a central building chiller. Building chillers normally are the single largest user of electrical power in a facility. To keep them operating as successfully as possible, upkeep activities must be carried out on an everyday, regular, regular monthly and yearly basis. Let them lapse, and efficiency will certainly lower, increasing energy use. Start with the chiller operating log. Work with the chiller manufacturer or a service company to convert the log data into an operating efficiency curve for the chiller.

Develop a similar curve for what the efficiency of the chiller would be if all upkeep were carried out at the suggested intervals. The distinction between the two operating efficiencies can be translated into energy and expense savings. Due to the high energy use of the equipment, even little rises in efficiency will certainly lead to large cost savings. While the energy cost savings estimates for chillers, central heating boilers, and numerous other HVAC systems is straightforward, others cost savings appraisals could not be. Take into consideration outside air dampers. Air dampers need routine upkeep to react correctly to the temp control system's need for air flow. If the damper linkage is out of adjustment, or if it sticks open, more air flow will certainly be introduced than necessary, calling for the system to make use of more heating or cooling energy to condition that air.

Contrary to popular belief, air conditioners do not consume refrigerant, like an automobile takes oil. Under ideal conditions, you will certainly never need to add or change the refrigerant in your air conditioning system. If you do discover that your refrigerant levels are reduced, this shows a puncture in your system which must be mended before you add refrigerant. While most brand-new system hookups are welded to lessen leaks, numerous older units (8 years or older) were connected with mechanical flared fittings which can easily move loose over the years, creating leaks.\n

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