Product Manual

SRT 15-80 AC 115V T cUL User Manual US-EN
1000-1040 R01
20
Subject to EAR. ECCN EAR99 and related export control restrictions.
11 Technical description
11.1 Control panel
The control panel explained below is the only dryer user interface.
1
2
ON-OFF Switch
Electronic instrument
11.2 Functional description
Operating principle – All dryer models described in this manual function according to the same principle. The hot and
moisture-loaded air is led into an air/air heat exchanger. Afterwards, the air flows through an evaporator, which is also
known as an air/refrigerant heat exchanger. The air temperature is reduced to approximately 36°F (2°C), so that water
vapour condenses to liquid. The continuously accumulating condensate is collected in the separator to be discharged
via the condensate drain. Subsequently, the cold and dry air is led through the air/air heat exchanger, so that it is reheated
to up to 46°F (8°C) below the inlet temperature when leaving the dryer.
Refrigeration cycle – The refrigerant is conducted through the compressor and reaches a condenser under high
pressure. There, cooling-down takes place, making the refrigerant condense to a liquid state which is under high pressure.
The liquid is pressed through a capillary tube where the resulting pressure drop ensures that the refrigerant evaporates
at a defined temperature. The liquid refrigerant which is under low pressure is led into the heat exchanger, where it
expands. The cold resulting from the expansion serves to cool down the compressed air in the heat exchanger. During
this process, the refrigerant evaporates. The low-pressure gas is resupplied to the compressor, where it is compressed
again. It then re-enters the cycle. In phases of a reduced compressed-air load, the excess refrigerant is resupplied
automatically to the compressor via the hot gas bypass valve.
1
2
1
0
PQS0100
sec - min
Set
DMC35
ON