Beko BUDL 700 Specifications download pdf (Page 24)

Technical description

24 DRYPOINT

RS 15 – 1700 HP50 NA

5.5. Refrigerating compressor

The refrigerating compressor is the pump in the system, gas coming from the evaporator (low pressure side) is

compressed up to the condensation pressure (high pressure side). The compressors utilized are manufactured by

leading manufacturers and are designed for applications where high compression ratios and wide temperature changes

are present.

The hermetically sealed construction is perfectly gas tight, ensuring high-energy efficiency and long, useful life.

Dumping springs support the pumping unit in order to reduce the acoustic emission and the vibration diffusion. The

aspirated refrigerating gas, flowing through the coils before reaching the compression cylinders cools the electric

motor. The thermal protection protects the compressor from over heating and over currents. The protection is

automatically restored as soon as the nominal temperature conditions are reached.

5.6. Condenser (Air-Cooled)

The condenser is the component in which the gas coming from the compressor is cooled down and condensed

becoming a liquid. Mechanically, a serpentine copper tubing circuit (with the gas flowing inside) is encapsulated in an

aluminum fin package.

The cooling operation occurs via a high efficiency fan, creating airflow within the dryer, moving air through the fin

package. It’s mandatory that the ambient air temperature does not exceed the nominal values. It is also important to

keep the condenser unit free from dust and other impurities.

5.7. Condenser (Water-Cooled)

The condenser is the component in which the gas coming from the compressor is cooled down and condensed

becoming a liquid. Basically it is a water/refrigerating gas exchanger where the cooling water lowers the temperature of

the refrigerating gas.

The temperature of the inlet water must not exceed the nominal values. It must also guarantee an adequate flow and

that the water entering the exchanger is free from dust and other impurities.

5.8. Condenser water regulating valve (Water-Cooled)

The condenser water regulating valve is used to keep the condensing pressure/temperature constant when the Water-

Cooled is being used. Thanks to the capillary tube, the valve detects the pressure in the condenser and consequently

adjusts the water flow. When the dryer stops the valve automatically closes the cooling water flow.

CAUTION!

The condenser water regulating valve is an operating control device.

The closure of the water circuit from the pressure condenser water regulating valve cannot be used as a

safety closure during service operations on the system.

ADJUSTMENT

The condenser water regulating valve is adjusted during the testing phase to a pre-set value that covers 90%

of the applications. However, sometimes the extreme operating conditions of the dryer may require a more

accurate calibration.

During start-up, a qualified technician should check the condensing pressure/temperature and if necessary

adjust the valve by using the screws on the valve itself.

To increase the condensing temperature, turn the adjusting screws counter-clockwise; to lower it turn the

screws clock-wise. Adjust the valve in order to guarantee a condensing temperature of 108-113 °F (42-45 °C).

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Beko BUDL 700 Specifications Page 24