The Heat Balance Method (HBM) is used for estimating the Use these systems for applications where several spaces with uniform loads will be served by a single apparatus and where precision control of the environment is required. Remove some refrigerant 5. Year-round air conditioning system. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC . In these types of air conditioning system, the air is brought to the required dry bulb temperature and relative humidity for human health, comfort and efficiency. Here, we will discuss the basic function of the main components of your vehicle's A/C system. 1 According To The Purpose 1.1 Comfort Air Conditioning system. Open valve 4. Any person who repairs or services a MVAC system for consideration must be certified under section 609 of the Clean Air Act by an EPA-approved program. The most common causes of broken air conditioning are leaks or compressor issues. The Haynes Automotive Heating & Air Conditioning Systems Manual Clean condenser 3. If the refrigerant level is low, it usually means it was either undercharged at installation or it has a leak. Recharge system 2. Air in system 2. Insufficient condenser air 6. Cooling coils can be direct expansion or chilled water. Discharge valve closed 4. Tighten fan belt 7. automotive air-conditioning system, possible heat sources for its heating operation are as follows: ・Thermal energy in the outside air; ・Thermal energy from the ventilation air in the cabin. Having your car’s air conditioning go out suddenly can ruin your day fast. 3.1 Cooling Systems 3.1.1 Central Air Conditioning Systems. From the load calculation, cooling capacity can be calculated & thus tonne of refrigeration required is found out. EPA-approved programs for technicians who service motor vehicle air conditioning (MVAC) systems. Air conditioner problems are not cool – low refrigerant equals low efficiency While air conditioning troubleshooting uncovers an under-performing unit, that can be the result of low refrigerant. Automotive air conditioning system. Install large fan 6. As a matter of fact it would be quite difficult to imagine a modern vehicle without some means of providing a cooler and more comfortable ride especially when. It serves one very fundamental purpose, as well, and that is to cool you down. The automotive air conditioning system includes thecompressor, condenser, evaporator, receiver-dehydrator and connecting lineswhich includes expansion valve, orifice tube, suction throttling valve,positive operating absolute valve, evaporator pressure regulator valve, thermal sensor, high pressure cut off switch and cycling compressor switch. An expansion valve which is a restriction the compressor pumps against. Components Automotive Air Conditioning Compressors Parti 2 With . Clogged condenser 3. Automotive Air conditioning: how it works. Condenser not centered on fan or too far from radiator Repair 1. Overcharged system 5. This information is intended to give the average individual an average understanding of not only what each part is, but also how it functions within the system. Loose fan belt 7. In this research, existing refrigerant (R134a) was used because of its availability and