GF83.65-D-3000H Refrigerant Circuit, Function

GF83.65-D-3000H Refrigerant Circuit, Function

- with CODE (H08) High-performance air conditioning







41 Roof air conditioning desiccant cartridge
42 Roof air conditioning condenser
45 Roof air conditioning expansion valve
47 Roof air conditioning evaporator
A High pressure (gaseous)
B High pressure (liquid)
C Low pressure (liquid)
D Low pressure (gaseous)
A9/7 2nd refrigerant compressor

The 2nd refrigerant compressor that is driven by the engine compresses the gaseous refrigerant that is drawn in by the low pressure (gaseous), causing it to heat up. Following this, the gaseous refrigerant is forwarded over the high pressure (gaseous) into the roof air conditioning condenser. Once there, compression heat is extracted from the refrigerant with the aid of the air flow over the surface of the roof air conditioning condenser generated by the roof air conditioner 1 additional fan (M4/16) and the roof air conditioner 2 additional fan (M4/17), whereby the refrigerant cools down. As it is cooling down, the refrigerant liquefies (condenses). Then the liquid refrigerant is forwarded to the roof air conditioning desiccant cartridge via the high pressure (liquid). Any contamination or water content in the liquid refrigerant is removed in the roof air conditioning desiccant cartridge. After being cleaned in the roof air conditioning desiccant cartridge, the liquid refrigerant is forwarded over the high pressure (liquid) to the roof air conditioning expansion valve. The roof air conditioning expansion valve regulates the flow of refrigerant to the roof air conditioning evaporator depending on the low pressure (gaseous) and the temperature at the roof air conditioning evaporator outlet.

The roof air conditioning expansion valve routes the partly liquid and partly gaseous refrigerant via the low pressure (liquid) into the roof air conditioning evaporator. The refrigerant evaporates in the roof air conditioning evaporator. Due to the evaporation process, heat and air humidity are extracted from the recirculated air blowing by the outside of the pipe and honeycomb system of the roof air conditioning evaporator, causing the air to cool down and dry out.
The air humidity carried along is converted to condensed water, which is routed to the outside. The 2nd refrigerant compressor draws in the refrigerant which has become gaseous again due to heat absorption via the low pressure (gaseous) and compresses it again.