thermostat contacts close, the current flow through the anticipator is insignificant because the contacts of the thermostat offer less resistance to current flow than the anticipator resistance, so the anticipator is de-energized.

REFRIGERANT LINES AND PIPING

Because of the progress made in this field, construction has become much simpler. Since precharged lines are in everyday use, the problems of installation are being eliminated. However, pay particular attention to neatness and cleanliness when you are installing support brackets (hangers) and insulation.

Figure 14-21 shows a schematic piping diagram of a typical commercial refrigeration system. This system has a roof-mounted air-cooled condenser and two motor compressors. Each motor compressor has a suction and a liquid header and is connected to six refrigerant lines. A detailed view of an oil separator installation is shown in figure 14-22.

Figure 14-22. - Installation of an oil separator.