1. Central Air Conditioner

For proper cooling in hospitals, big buildings and cinema halls and offices we require higher capacity air conditioners. Central air conditioners create proper cooling in large areas. Therefore we use this type air conditioners in these locations. In these types of air conditioners various parts like Condenser, Cooling coil, AHU etc. has large capacity. Cooling unit is set up at distance from cooling place. Separate AHUs are used for separate compartments. This system has blowers and strip heaters for winters.

2. Working Method of Central Air Conditioner

On connecting to power supply compressor gets on. Refrigerant enters from evaporator to compressor. Compressor copmresses the refrigerant and sends it to the condenser. Where refrigerant dissipates heat and converts into liquid. This liquid refrigerant reaches to evaporator through various parts of air conditioning cycle. evapoator converts it into vapor. After that blower pushes the air on evaporator and this air becomes cold. Chilled air is tranmitted to cooling places by using ducts. Hot air from cooling palces exhausted by using return ducts. Central AC are of two types. 1. Direct System 2. Indirect System.

3. Faults in Central Air Conditioner

There are various types of faults arise in Central AC. Like- 1. Sensor Problem 2. Leakage of Refrigerant 3. Noise 4. Electric Control Failure. Central Air Conditioners has various types of sensor devices. Such as- Thermostat, Relay etc. These devices help central ac in smooth functioning. Due to a faulty sesnor functioning of cooling machine gets affected. By replacing faulty sensor we can repair this fault. Refrigerant leakage is a big problem in ac. It reduces its cooling efficiency. This is harmfull for humans also. To get repaired by an expert professionals is the best solution. For any kind of fault like noise and electrical failure in central ac you should take help of expert ac engineers.

4. Types of Air Filters in Central Air Conditioners

Various types of air filters are used in Central Air conditioners. Such as- 1. Pre Filters 2. Fine Filters 3. Absolute Filters. Funtions oa iar filters – 1.To Remove dust particles from air. 2. To transmitt pure air at cooling place. 3. To protect air conditioners working system. 4. To maintain the efficiency of air conditioners. 5. To increase life span of cooling machine. We should clean the filters regularly. Replace very old filter with new one. There should not any type of obesticales in the path of filters. No Leakage in filters gasket.