KKT chillers vBoxX 10, Инструкция по эксплуатации

Страница: 12 / 82

12 / 82 83000602.Ke
2. Function and main components
The chiller consists of the main components: compressor, condenser, expansion valve and
evaporator, which are arranged in a circuit (
Figure 1 ). Refrigerant circulates in this circuit. This
absorbs heat from the cold water and discharges this to the ambient air drawn-in in the condenser.
Figure 1: C6848 Refrigeration diagram
Diverse pressure and temperature sensors, a control unit, a high-pressure switch, one or several
pump(s) and a fan are also installed for control and operation of the chiller.
2.1. Compressor
The compressor generates the pressure difference in the refrigerant circuit, between the heat sink
and heat source, necessary for evaporation and condensing. Vaporous refrigerant from the
evaporator is drawn in and is compressed to condensing pressure in the compressor.
The compressors used in the Vario-Line are speed-controlled and therefore adapt automatically to
the requested load profile – and therefore the chiller always operates with maximum energy
efficiency.
Compressor
Condenser and fan
Evaporator
Expansion
valve
Heat
Cold