Best Heating & Cooling Experts for hvac direct Pittsview, AL. Call +1 334-298-1278. 24 Hour Calls. Guaranteed Services – Low Prices.

Contact Us

Riley Heating & Air Conditioning

1019 Knowles Rd, Phenix City, AL 36869, United States

Telephone

+1 334-298-1278

Hours

Mon-Sun, 8am – 9pm

Space pressure can be either positive or negative with regard to outside the space. Favorable pressure takes place when there is more air being provided than exhausted, and prevails to reduce the infiltration of outside contaminants. Natural ventilation is a crucial element in reducing the spread of air-borne illnesses such as tuberculosis, the common cold, influenza and meningitis.

Natural ventilation needs little upkeep and is affordable. A cooling system, or a standalone ac system, offers cooling and humidity control for all or part of a building. Air conditioned structures often have sealed windows, since open windows would work versus the system planned to preserve constant indoor air conditions.

The percentage of return air comprised of fresh air can generally be manipulated by changing the opening of this vent. Common fresh air consumption is about 10%. [] Air conditioning and refrigeration are supplied through the removal of heat. Heat can be eliminated through radiation, convection, or conduction. Refrigeration conduction media such as water, air, ice, and chemicals are referred to as refrigerants.

It is essential that the a/c horse power is enough for the location being cooled. Underpowered air conditioning system will cause power waste and ineffective usage. Appropriate horse power is needed for any air conditioning unit set up. The refrigeration cycle utilizes four essential elements to cool. The system refrigerant starts its cycle in a gaseous state.

From there it gets in a heat exchanger (often called a condensing coil or condenser) where it loses energy (heat) to the outside, cools, and condenses into its liquid phase. An (likewise called metering device) manages the refrigerant liquid to flow at the correct rate. The liquid refrigerant is returned to another heat exchanger where it is enabled to evaporate, hence the heat exchanger is frequently called an evaporating coil or evaporator.

At the same time, heat is soaked up from inside and moved outdoors, resulting in cooling of the structure. In variable climates, the system may include a reversing valve that changes from heating in winter season to cooling in summertime. By reversing the flow of refrigerant, the heatpump refrigeration cycle is altered from cooling to heating or vice versa.

Free cooling systems can have really high performances, and are often combined with seasonal thermal energy storage so that the cold of winter season can be utilized for summertime a/c. Typical storage mediums are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter, heat-exchanger-equipped boreholes.

The heat pump is added-in since the storage serves as a heat sink when the system is in cooling (rather than charging) mode, causing the temperature level to gradually increase during the cooling season. Some systems consist of an “economizer mode”, which is in some cases called a “free-cooling mode”. When economizing, the control system will open (completely or partially) the outdoors air damper and close (totally or partially) the return air damper.

When the outside air is cooler than the demanded cool air, this will enable the need to be fulfilled without utilizing the mechanical supply of cooling (generally chilled water or a direct growth “DX” unit), therefore saving energy. The control system can compare the temperature of the outdoors air vs.

In both cases, the outside air should be less energetic than the return air for the system to go into the economizer mode. Central, “all-air” air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are typically installed in North American houses, workplaces, and public structures, but are challenging to retrofit (set up in a building that was not designed to get it) since of the large air ducts needed.

An alternative to packaged systems is using separate indoor and outside coils in split systems. Split systems are chosen and extensively utilized around the world other than in North America. In The United States and Canada, divided systems are most often seen in domestic applications, however they are acquiring appeal in small commercial buildings.

The advantages of ductless a/c systems include simple setup, no ductwork, greater zonal control, flexibility of control and quiet operation. [] In space conditioning, the duct losses can account for 30% of energy intake. Using minisplit can lead to energy cost savings in area conditioning as there are no losses connected with ducting.

Indoor units with directional vents mount onto walls, suspended from ceilings, or fit into the ceiling. Other indoor units install inside the ceiling cavity, so that brief lengths of duct deal with air from the indoor unit to vents or diffusers around the spaces. Split systems are more effective and the footprint is usually smaller than the plan systems.

Call Now