HVAC stands for heating, ventilation, and air conditioning. This system provides heating and cooling to residential and commercial buildings. The V in HVAC, or ventilation, is the process of replacing or exchanging air within a space. This provides a better quality of air indoors and involves the removal of moisture, smoke, odors, heat, dust, airborne bacteria, carbon dioxide, and other gases as well as temperature control and oxygen replenishment.
There are three primary areas to look at when you test your HVAC unit: the controls, the ductwork and the vents..
Testing Your Thermostat
Begin with a check of the control system for your HVAC system. Compare the temperature readout on the thermostat to a thermometer that is not connected to the system. If they differ, your thermostat may have a problem sensing the temperature of your house, and if your thermostat cannot tell when it needs to kick-in or stop, even an HVAC system that is otherwise in perfect order becomes unable to do its job.
Checking the Ducts
Once the AC unit has been running for about ten minutes, the system should be cooling your house. Walk along the path from the unit to the air vents around the house, listening for unusual noises. Anything that has been left or lodged in the ductwork may interfere with the passage of cooled air to the rooms of your home. Rattling, flapping or hissing noises are more common here: the ducts do not have machinery to fail, and duct issues are usually either blockages or improper sealing that allows cooled air to leak, a major cause of wasted energy during the summer.
Examining the End Results
Finally, go from room to room throughout the house and check each air vent. Now that the system has been running for ten or more minutes, the cooled air should be circulating through the whole system, and all air vents should be providing noticeably cool air to the rooms. If vents in a certain room or a certain part of the house are not blowing, and you have checked that they are open, you may have a block or a leak farther in the ducts. Otherwise, your system is functioning correctly and should be able to bring your home to the correct temperature quickly and efficiently.
Detecting HVAC Leaks
Smoke testing effectively and inexpensively reveals leaks and other faults in heating and air conditioning duct work. The Superior method of generating smoke by chemical reaction eliminates costly equipment and time consuming operations in pinpointing HVAC leaks.
Smoke testing has eliminated the need for tedious and time consuming soaping techniques. When smoke testing HVAC systems, smoke is traditionally introduced through the system intake. The highly visible
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