Instrument Panel; Control Panel - Schulz ADS Serie Manual De Instrucciones

9. INSTRUMENT PANEL

9.1 Control panel

The control panel illustrated below is the only dryer-operator interface.
1. ON-OFF Switch
2. Electronic instrument
3. Air and refrigerant flow diagram
9.2 Operation
Operating principle - The dryer models described in this manual operate all on the same principle. The hot moisture laden air enters an air
to air heat exchanger. The air then goes through the evaporator, also known as the air to refrigerant heat exchanger. The temperature of the
air is reduced to approximately 36°F (2°C), causing water vapor to condense to liquid. The liquid is continuously coalesced and collected in
the separator for removal by the condensate drain. The cool moisture free air then passes back through the air to air heat exchanger to be
reheated to within 8 degrees of the incoming air temperature as it exits the dryer.
Refrigerant circuit - Refrigerant gas is cycled through the compressor and exits at high pressure to a condenser where heat is removed
causing the refrigerant to condense to a high-pressure liquid state. The liquid is forced through a capillary tube where the resulting pressure
drop allows the refrigerant to boil off at a predetermined temperature. Low-pressure liquid refrigerant enters the heat exchanger where heat
from the incoming air is transferred causing the refrigerant to boil; the resulting phase change produces a low pressure, low temperature
gas. The low-pressure gas is returned to the compressor, where it is re-compressed and begins the cycle again. During those periods when
the compressed air load is reduced the excess refrigerant is by-passed automatically back to the compressor via the hot gas by-pass valve
circuit.
1
0
sec - min
Set
1
FIGURE 9.1 - ADS 10 - 175
I
ON
sec - min
Set
1
FIGURE 9.2 - ADS 220 - 480
DMC15
ON
2 3
DMC15
ON
2 3
61
K
K