Today, many companies are engaged in the manufacture and sale of a variety of equipment. Polair monoblocks are refrigeration units that are already completed and ready for operation on modular refrigeration chambers. The plant of this company for the production of monoblocks is located in the city of Volzhsk.
Why Polair?
As for the production of Polair monoblocks, they, like other equipment from this manufacturer, are produced at the Sovitalprodmash plant. The complex is considered the largest high-tech and automated production building in all of Europe. All equipment goes through a full assembly cycle here, and there is also a conveyor assembly.
Certain features of the production technology allow the production of Polair monoblocks with reliability and quality that surpasses analogues of all competitors. In addition, the company has its own research center, as well as a large testing laboratory, which has all the necessary certificates fortesting. Therefore, Polair monoblocks are considered the highest quality.
Aggregates of different types
Today, the company is engaged in the production and production of monoblocks of two types.
One of the main types of Polair monoblock is MM. This is a medium temperature unit, which is designed to maintain temperatures in the range from -6 to +6 degrees Celsius.
The second type of MV monoblock is low-temperature. It is able to maintain the temperature inside the refrigerator compartment down to -18 degrees Celsius, provided that the ambient temperature is between 12 and 40 degrees.
The monoblock itself is a completely sealed system that operates on R-22 refrigerant or its equivalent. The temperature setting of the Polair monoblock is carried out automatically in accordance with the volume to be cooled. In addition to it, the device also includes a control unit, a device for automatic defrosting.
In addition, there is also an automatic removal of melt water due to the presence of a forced evaporation system. As for the production of the body, it is usually made of sheet painted Finnish hot-dip galvanized steel.
Design description
Structurally, the monoblock consists of such parts as a compressor with start-up protection fittings, a coil for the evaporation of melt water, a condenser, a filter for drying, an evaporator, a liquid separator, as well as a pressure switch and a shielddevice control.
Manual for Polair monoblock is included for control. On the control panel of the device there is a control element and, in fact, control. A is the general illuminated switch, and B is the control box itself.
In order for the monoblock to be able to automatically maintain the temperature in the refrigerator compartment, as well as to be able to adjust this parameter, the Polair monoblock circuit has an electronic temperature controller, or simply a controller. For optimal performance of this appliance, it has its own sensor, which is located inside the refrigerator compartment.
Device operation
As for the operation of the unit, it begins with the connection of the refrigeration machine, it is also a monoblock, to the network. The connection must be made through an automatic switch. In order to start the monoblock, you should turn on the switch, which is usually indicated on the diagrams as QG.
Immediately, power will be supplied to the automatic temperature controller. It will begin to control the cooling process in the chamber, and will also manage the defrosting process.
If the monoblock will work at low temperatures, then it must be in the design of a rheostat of the TR1 type. The peculiarity of the rheostat is that it will automatically turn off the refrigeration machine if the ambient temperature reaches -10 degrees Celsius or lower. In this case, it is worth knowing that the diodethe network connection will still be lit, but the controller indication will disappear. If the ambient temperature rises to 5 degrees Celsius, then elements such as the condenser blower rotation speed control system are included in the work. In addition to this system, the crankcase heater for the controller and compressor is also turned on.
