Air conditioning is really pretty simple when you get down to the basics. It is a sealed system composed of copper tubing, some electronics, and three basic components; a compressor and two heat exchangers or coils. The cycle goes like this;

• The compressor (1) compresses the refrigerant into high-pressure vapor.
• The refrigerant vapor enters the outside coil (condenser) (2) where a fan (3) blows air across it. This cools the refrigerant by removing heat (4) and condenses it to liquid.
• The refrigerant which is now liquid (5) is pushed along the refrigerant line to the inside coil (evaporator) where it encounters a metering device.
• The metering device (6) limits the amount of refrigerant entering the inside coil (evaporator) and creates a pressure drop across it.
• This allows the refrigerant to expand from a small diameter tube to a larger one.
• At this coil a fan (3) blows air across it and the refrigerant absorbs the heat in the air. This effectively cools the air exiting the coil (7) and the heat evaporates the refrigerant back to vapor.
• From here the refrigerant vapor (8) returns to the compressor to start the cycle over again.
• In case of a room air conditioner, all the three components sit in one housing.
• In case of split units (‘ducted’ or ‘ductless’), the condensing unit (compressor + outside coil) is housed outside and connected to the inside cooling unit (inside coil + controls) with copper tubing. In city environment having scarcity of space and too many laws involved, the condensing unit can be installed in the walls too. In a ‘ducted’ system, one cooling unit is installed inside and is ducted to different rooms. In the ‘ductless’ system, each room has its own cooling unit, connected to outside condensing unit.

WHY CENTRAL AIR CONDITIONING?

Central air conditioners condition the air throughout your home. If you want to cool one or two rooms, you may still want to control humidity everywhere. Room air conditioners aren’t as effective in lowering the humidity in the whole home. They help lower humidity only in the room they service.                                 

During Winter we will remove units, service them, and re-install them as good as new the next spring. Please call us on (212) 744 4224, or Contact Us.