How Does Your HVAC System Operate?

HVAC System Operation

Have you ever researched HVAC operations or discussed them with your tech, and it feels as if you’re attempting to learn a new language? Here’s a few vocabulary terms that can help:

Air Changes Per Hour (ACH)


The Air Changes Per Hour in your household refers to the quantity of times an hour that a certain room is offered new air through ventilation by natural or mechanical means. It’s recommended that residential houses receive .35 ACH. Standard Air Changes Per Hour rates vary depending upon the kind of building, according to the EPA.



Coils are a component that permits heat transfer inside the HVAC unit or its ductwork. Generally, coils are cooled/heated by electrical means or by circulating a steam or liquid within it. There are many different coil elements in an HVAC system, which includes the heating coils, evaporator, and the condenser.

Heat Pump


Heat pumps are excellent ways to keep your home comfy all year long. A heat pump uses the exterior air to heat a house in the wintertime and cool it in the summertime. Essentially, it moves hot air from place to place, and provides effective temperature control, no matter the season.

Indoor Air Quality (IAQ)


The Indoor Air Quality in your household is critical for your loved one’s health. The EPA reported that the indoor air quality may be as much as 100 times worse than the exterior air. At All-In-One Services, we offer several steps that improve a home’s Indoor Air Quality, which includes AC repair, Heater repair and HVAC repair.

Seasonal Energy Efficiency Ratio (SEER)


The Seasonal Energy Efficiency Ratio is a measure of annual or seasonal efficiency of a central AC or AC heat pump. The greater a unit’s Seasonal Energy Efficiency Ratio, the more efficient it will be and the lower the operating expense. In the U.S.,the minimum Seasonal Energy Efficiency Ratio rating is 10; however, the majority of our Carrier units provide SEER ratings from 16 to 20.

For more information about our HVAC repair services in Wilmington, NC contact All-In-One Services at (910) 343-1399.