In a split system the two halves of the refrigeration are separated: the evaporator hangs from the room ceiling, the condensing unit is placed outside (on the ground, the roof or a wall) and liquid and suction lines are run between them. The condenser rejects the hot air away from the room; the unit stays away from noise-sensitive and product areas; the line length can be tens of metres.
Its advantages over a monoblock: it can be built at any capacity (from a few kW to hundreds of kW), the evaporator is chosen for the product (low-TD vegetable evaporator, wide-fin blast evaporator), one unit can feed several rooms, and the condenser goes in the most suitable place. The disadvantage is that it needs pipework, evacuation, charging and commissioning on site; this work is done by the Sonkar dealer and service network.
The right split system is one in which the evaporator and the unit are balanced at the same evaporating temperature: evaporator capacity is chosen slightly above unit capacity, and pipe diameters are determined by line length and oil return. In our catalog, condensing units and evaporators can be searched by capacity and operating condition; the cooling load calculator goes straight from its result to compatible models.