AIR CONDITIONING

Definition: Assembly of Air Conditioning equipment for the simultaneous control of air temperature, relative humidity, purity, and motion.

Brief: Used to cool the air in indoor environments.

Available as portable monoblock or split system units.
(Monoblocks are freestanding and offer an instant solution to your air conditioning needs. They can be connected to a standard 13 amp socket, while an exhaust for hot air is often achieved by simply passing a pipe through an open window. For a more permanent exhaust, a vent similar to a tumble-dryer outlet can be installed through an outside wall. This also allows the unit to be relocated easily and neatly where temporary cooling is needed.

Split portable systems comprise two parts - a main evaporator unit inside the building, which is connected to an external condenser box via refrigerant lines. These lines are usually fitted with gas-tight connectors, allowing them to be uncoupled and passed through a small hole, drilled through an external wall. The condenser box on the outside of the building is usually suspended on brackets for wall hanging, or can be placed on the ground or a flat roof.)

(There are two main types of fixed system to consider - a split system and a through the window or wall system. Given the more complex nature of fixed units, and regulations over handling refrigerant gases, installation of these systems should be carried out by an air conditioning expert.
Fixed split systems are similar to the split portables described above, with refrigerant lines and cables coupling the external condenser to one or more internal evaporator units.
The fixed systems offer greater cooling capacity, while the greater distance from the external condenser reduces noise inside the building.
Through the window or wall systems are quite simple and relatively cheap to install. They offer the reduced internal noise of a split system, as the condenser is outside the window/wall, at a substantially lower cost.)

A system that uses a refrigerant gas that heats up under compression. This gas then runs through an expansion valve which is used to cool the gas down. The colder gas then passes through a series of coils and absorbs the heat from the air which was extracted from the building. The cooler air is then forced back into the building.