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Make a difference in passenger comfort with Yılkar monoblock rooftop air conditioners

Yılkar continues to offer professional solutions to the needs of the sector with more than 15 years of experience.

While our air conditioners offer powerful and effective thermal comfort solutions suitable for all climatic conditions. Our monoblock series air conditioners are mounted on your vehicle and protect the construction inside the vehicle.

Optional fresh air flap and heating function can be added for needs and demands.

Technical Publication
How Does Vehicle Roof Air Conditioners Work?

Vehicle roof air conditioners are heat engines that take the heat in the vehicle and provide passenger thermal comfort.

Vehicle roof air conditioners operate using physical laws in thermodynamics known as the vapor compression refrigeration cycle. There are 4 main parts of this cycle. These are a compressor, condenser, evaporator, and expansion valve. The refrigerant that is put into the heat engine is pressurized in the compressor in the first place, the fluid pressure is increased from approximately 1 bar to 16 bars. Afterward, the temperature of the excessively compressed and superheated gas in the condenser is removed and the fluid is liquefied under extreme pressure. High-pressure liquefied fluid coming from here to the expansion valve evaporates by passing from the valve to the low-pressure area. It needs heat during evaporation. While the ambient air passed over the evaporator heats the fluid in the evaporator and allows it to evaporate, it provides thermal comfort to the passenger cabin by cooling the environment.