As the name tells, under-counter stand-alone coolers are kind of refrigerated units that stand usually under some kind of counter right next to some kind of wall on their own and can be easily taken out when in time of service. These units are self-contained with the compressor and the other components at the back or side. The refrigeration cycle of these types of units works in the same way as any other refrigeration cycle. We have four main components in the cycle. The evaporator is commonly known as the indoor coil with the metering device attached to it. The compressor is the heart of the system and then we have the condenser which throws the unwanted heat outside. Refrigerant most of the time R404A or an R134A circle comes from the solenoid valve into the thermostatic expansion valve or capillary goes into the indoor evaporator. This is where the change of state from liquid starts to become vapour gaining the hot heat from indoors via the fan. Then it goes to the compressor whose sole purpose is to pump the refrigerant down and then feed it to the condenser where it first de-superheats and then starts changing its back from vapour to liquid. This is the basic cycle of how under-counter stand-alone coolers and freezers work. We at DHVAC HEATING, REFRIGERATION, APPLIANCES, AND AIRCONDITIONING SYSTEMS do full supply, maintenance, servicing, and installations of under-counter fridges/freezers for all kinds of supermarkets, commercial and industrial needs. If you have a business where you needed them to showcase your product or need to get service done. Feel free to contact our branches or you can even fill out our online service request form on our website or give us a direct call.