Top AC & Heating Experts for commercial hvac services Opelika, AL. Dial +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

Room pressure can be either favorable or negative with regard to outside the room. Positive pressure takes place when there is more air being supplied than tired, and prevails to decrease the seepage of outdoors contaminants. Natural ventilation is a crucial consider lowering the spread of airborne diseases such as tuberculosis, the typical cold, influenza and meningitis.

Natural ventilation needs little upkeep and is inexpensive. An air conditioning system, or a standalone a/c unit, offers cooling and humidity control for all or part of a structure. Air conditioned buildings typically have sealed windows, since open windows would work against the system meant to keep consistent indoor air conditions.

The portion of return air made up of fresh air can usually be manipulated by changing the opening of this vent. Normal fresh air intake is about 10%. [] Cooling and refrigeration are offered 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 described as refrigerants.

It is imperative that the cooling horsepower is adequate for the location being cooled. Underpowered a/c system will result in power waste and ineffective use. Sufficient horsepower is required for any ac system installed. The refrigeration cycle uses four necessary aspects to cool. The system refrigerant starts its cycle in a gaseous state.

From there it enters a heat exchanger (sometimes 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 gone back to another heat exchanger where it is allowed to vaporize, for this reason the heat exchanger is often called an evaporating coil or evaporator.

At the same time, heat is absorbed from inside your home and moved outdoors, leading to cooling of the structure. In variable climates, the system might include a reversing valve that switches from heating in winter season to cooling in summer season. By reversing the circulation of refrigerant, the heatpump refrigeration cycle is altered from cooling to heating or vice versa.

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

The heatpump is added-in because the storage serves as a heat sink when the system is in cooling (rather than charging) mode, triggering the temperature to gradually increase throughout the cooling season. Some systems consist of an “economizer mode”, which is often called a “free-cooling mode”. When economizing, the control system will open (fully or partially) the outside air damper and close (fully or partly) the return air damper.

When the outdoors air is cooler than the required cool air, this will allow the demand to be fulfilled without using the mechanical supply of cooling (normally chilled water or a direct expansion “DX” unit), hence conserving 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 get in the economizer mode. Central, “all-air” air-conditioning systems (or package systems) with a combined outside condenser/evaporator unit are frequently set up in North American houses, workplaces, and public structures, but are tough to retrofit (install in a structure that was not developed to receive it) because of the large duct needed.

An option to packaged systems is using different indoor and outdoor coils in split systems. Split systems are chosen and commonly used around the world except in North America. In The United States and Canada, divided systems are usually seen in residential applications, but they are gaining popularity in little commercial buildings.

The benefits of ductless a/c systems consist of easy setup, no ductwork, higher zonal control, versatility of control and peaceful operation. [] In area conditioning, the duct losses can account for 30% of energy intake. Making use of minisplit can result in energy savings in area conditioning as there are no losses related to ducting.

Indoor systems with directional vents mount onto walls, suspended from ceilings, or fit into the ceiling. Other indoor systems install inside the ceiling cavity, so that short lengths of duct handle air from the indoor unit to vents or diffusers around the rooms. Split systems are more efficient and the footprint is normally smaller than the package systems.

Call Now