In a Vapour Absorption Refrigeration System (VARS), the work-consuming mechanical compressor is replaced by a thermo-chemical assembly consisting of four components: an Absorber (where refrigerant vapor dissolves into weak absorbent solution), a Solution Pump (pumping strong solution to high pressure), a Generator (where heat expels refrigerant vapor), and a Pressure Reducer / Pressure Reducing Valve (returning weak solution to the absorber).
वाष्प अवशोषण प्रणाली में कंप्रेसर के स्थान पर एक अवशोषक (Absorber), जनरेटर (Generator), पंप (Pump) और प्रेशर रिड्यूसर वाल्व का संयोजन उपयोग किया जाता है।