Top AC & Heating Experts for hvac emergency service Hamilton, 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

Room pressure can be either positive or negative with respect to outside the room. Positive pressure happens when there is more air being provided than exhausted, and is common to lower the infiltration of outdoors pollutants. Natural ventilation is an essential consider decreasing the spread of air-borne illnesses such as tuberculosis, the acute rhinitis, influenza and meningitis.

Natural ventilation needs little upkeep and is low-cost. An a/c system, or a standalone a/c, offers cooling and humidity control for all or part of a building. Air conditioned structures frequently have sealed windows, due to the fact that open windows would work against the system intended to maintain continuous indoor air conditions.

The portion of return air made up of fresh air can generally be controlled by changing the opening of this vent. Common fresh air intake is about 10%. [] Cooling and refrigeration are supplied through the elimination of heat. Heat can be gotten rid of through radiation, convection, or conduction. Refrigeration conduction media such as water, air, ice, and chemicals are referred to as refrigerants.

It is vital that the a/c horsepower suffices for the area being cooled. Underpowered air conditioning system will cause power waste and inefficient use. Adequate horsepower is required for any a/c installed. The refrigeration cycle utilizes four important components to cool. The system refrigerant begins its cycle in a gaseous state.

From there it gets in a heat exchanger (in some cases called a condensing coil or condenser) where it loses energy (heat) to the outdoors, cools, and condenses into its liquid stage. An (likewise called metering device) regulates the refrigerant liquid to stream at the proper rate. The liquid refrigerant is gone back to another heat exchanger where it is enabled to vaporize, for this reason the heat exchanger is typically called an evaporating coil or evaporator.

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

Free cooling systems can have really high performances, and are in some cases combined with seasonal thermal energy storage so that the cold of winter season can be used for summer season air conditioning. Typical storage mediums are deep aquifers or a natural underground rock mass accessed by means of a cluster of small-diameter, heat-exchanger-equipped boreholes.

The heatpump is added-in since the storage acts as a heat sink when the system is in cooling (rather than charging) mode, causing the temperature to slowly increase during the cooling season. Some systems include an “economizer mode”, which is in some cases called a “free-cooling mode”. When saving money, the control system will open (totally or partly) the outside air damper and close (completely or partially) the return air damper.

When the outdoors air is cooler than the required cool air, this will allow the need to be met without using the mechanical supply of cooling (typically cooled water or a direct growth “DX” unit), therefore conserving energy. The control system can compare the temperature of the outside 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 frequently installed in North American homes, offices, and public structures, but are difficult to retrofit (set up in a building that was not created to get it) because of the large duct needed.

An option to packaged systems is making use of different indoor and outside coils in split systems. Split systems are chosen and widely used around the world other than in The United States and Canada. In The United States and Canada, divided systems are frequently seen in domestic applications, however they are acquiring popularity in little commercial structures.

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

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

Call Now