Air conditioners which utilize chilled water for air conditioning are typically commercial air conditioners for large commercial buildings. These air conditioners coils are designed with Air Conditioning is a process where heat is removed from an area that it is not wanted. To an area where it makes little or no difference to the user or homeowner. This article will breakdown the four basic components and explain how they work in conjunction with each other.
Indoor Unit Outdoor Unit 5. Outdoor Unit 6. Refrigerant Cycle Diagram Operation Data 7. Outdoor Unit Inverter Assembly 8. Outlined of Air Conditioner Control Description … Do not direct the cool air coming out from the air-conditioner panel to face household heating apparatus as this may affect the working of apparatus such as the electric kettle, oven etc.
A split-system air conditioner splits the hot side from the cold side of the system, as in the diagram below. The cold side, consisting of the expansion valve and the cold coil, is generally placed into a furnace or some other air handler.
In recent years, DC inverter air conditioner is becoming more popular compared to the conventional air conditioner due to its many advantages.
As the compressor takes the most power in any air conditioning system, the change in the compressor technology has enabled better and more efficient air conditioner or heatpump to be deployed.
It can be installed in a new home or tailored to suit an existing one, and once installed, only the controller, the return air and discharge grilles are visible inside your home. Wiring Diagram 5. Refrigeration System Diagram 6. Sensor Resistance Table 8. Frequency table 3. Method of Testing the Split air conditioner systems are preferable to window and wall air conditioning units as well.
Although the latter are small and easy to install, they do not provide reliable cooling to a large space or to multiple rooms. Even with thoroughly sealed windows and walls, these air conditioner units allow for heat to enter the space, partially negating the effects of the system.
Split Air Conditioner Air Conditioner pdf manual download. Page Installation Dimension Diagram. Installation dimension diagram Installation dimension diagram Installation dimension diagram Space to the ceiling 5. Among them, the most commonly used air conditioning units are split air conditioners.
In above snap, it is a reciprocating type compressor also in modern day, AC manufactures offers rotary compressor since the rotary compressor is cheaper than reciprocating compressor. The compressor tackles the refrigerant in its gaseous state so that while compressing the gas, the temperature rises along with the pressure. The temperature at the compressor outlet will be for higher than the atmospheric temperature. Therefore if you pass hot gas condenser heat exchange will easily eject the heat by forced cooling.
Here an exhaust fan in the condenser unit makes this easier. During this heat will be ejected by the condenser, This condensed gas will pass into a liquid expansion valve which is fitted at the exit of the condenser. Here the net out let pressure of the condenser is lower than the net inlet pressure of the condenser.
The purpose of the expansion valve is used to restrict the refrigerant R22 flow and reducing the pressure of the fluid. This principle works inside of the expansion valve as the pressure drops one part of refrigerant liquid starts evaporating.
However to perform this evaporation, some energy to be supplied; this energy comes from the refrigerant. So its temperature drops and finally we gets low temperature refrigerant inside of the air conditioner.
The refrigerant gets converted into vapor during this heat absorption process. In actual air conditioner the compressor sets near to the condenser and expansion valve sets near to the evaporator.
In modern compressor use scroll compressor in the reciprocating type. These compressor are silent and they have good speed control. How air conditioner able to maintain almost steady room temperature irrespective of load. The modern air conditioner uses variable speed control motor technology called inverter technology.
For better temperature control just by adjusting the motor speed, compressor speed, refrigerant flow rate and cooling capacity controlled accurately. Intersecting design for air conditioner, the compressor of the air conditioner is designed to handle only vapour and small fraction of a liquid content affects its performance and damage the compressor.
For these reason the evaporator control all of the liquid to vapour and even increases the temperature of the vapour by 5 to 8 degree Celsius after the conversion. This makes fluid which enters the compressor is purely vapour. This condition is maintained by a special kind of expansion valve called thermostatic expansion valve TXV. The TXV is similar to expansion valve. The temperature of the bulb controls the heater. The bulb is connected to the evaporator exit.
The refrigerant inside the bulb is separated from the main refrigerant cycle by diaphragm. When the bulb is hot the refrigerant inside will evaporated and the needle will move down. We know the sudden cooling of the refrigerant is achieved across the expansion valve with the help of the restriction the narrow over the restriction cooler the oil refrigerant.
Lets see bad situation of compressor Assume evaporator temperature is not so slow evaporator absorbs very low heat and all the liquid not be converted into a vapour. Then the refrigerant when leaves the compressor not be super-heated. This low temperature at evaporator exit immediately sensed by the bulb and causes the needle to move upwards to make the restrictions narrow drop.
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