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Description of functions
2. Cooling section
2.1
Cooling coil
A further preliminary cooling of the
compressed air is provided by the COOLING
COIL assembly, which is made of metal
tubing. The compressed air to this cooling
coil is supplied from the 1.7 HEAT CONVEC-
TOR, and the output is connected to 3.1
WATER SEPARATOR 1.
The cooling coil is cooled by the air stream
forced through the cooling section by the fan
in the dryer section. This air stream is then
routed to the compressor section.
14
3. Dryer section
3.1
Water separator 1
WATER SEPARATOR 1 is a "water trap"
made of a Y-piece connector. This water
separator is connected to the outlet of the
2.1 COOLING COIL, and it supplies
compressed air to the 3.2 THERMOELEC-
TRIC COOLER and to the 3.9 PRESSURE
REGULATOR.
The purpose of this water separator is to
collect moisture that has been transformed
into water by condensation when passing
through the cooling section.
The water separator is automatically drained
at regular intervals by one of the two 3.4
FILTER/SOLENOID VALVES, and the water
is collected in the 3.5 DRAINAGE BOTTLE.
WATER SEPARATOR 1 in compressors
with standby function has a different design,
see the chapter Introduction, Dryer section.
The function and purpose of this water
separator is as described above.
3.2
Thermoelectric cooler
The dryer section is equipped with a
THERMOELECTRIC COOLER designed for
12 V DC power supply. The thermoelectric
cooler is a self-contained unit including a
Peltier element which has one cool side and
one warm side.
The compressed air is supplied to the cool
side of the element via 3.1 WATER SEPA-
RATOR 1. When the temperature of the
compressed air is lowered, moisture that
remains in the air is partly transformed into
water by condensation. This water is then
collected in 3.2 WATER SEPARATOR 2
which is connected to the outlet of the
thermoelectric cooler.
The warm side of the Peltier element is
cooled by the air stream provided by the
3.14 FAN.
Siemens-Elema AB
Compressor Compact
E382 EH81E 061 01 03 02
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