SECTION 6 DHL HEATLESS REGENERATIVE DRYER
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When the LED is on, the 10 LED DISPLAY
shows the load percentage of the “1
st
Load”, set by
the operator during the programming phase. By
pressing the key , the DISPLAY shows the load
percentage of the “2
nd
Load” and the LED of
the “Cycle mode” menu lights up at the same time.
Press the key again and the 10 LED DISPLAY
shows the DewPoint temperature read by the
DewPoint meter (if installed); at the same time the
LED lights up.
The chart below shows the values matching each
LED of the DISPLAY :
When the LED is flashing it means the alarm went off for a high DewPoint. The function can
be activated only if the DewPoint probe is installed – optional – and only after having cor-
rectly set the relating DIP-SWITCH (see Section 6.9).
The LED flashes when the towers did not switch properly. This alarm is particularly impor-
tant because it helps avoid possible de-pressurizations of the distribution circuit through the
dryer. The function can be enabled only if the pressure switch kit is installed – optional – and
only after having correctly set the relating DIP-SWITCH (see Section 6.9).
If the “SERVICE” LED and the LED of the flow diagram are flashing at the same time, it
means that the dryer inlet filter is clogged and therefore it must be replaced. This alarm
does not affect the operation of the dryer, but maintenance interventions are needed.
Please refer to the User and Maintenance manual of the filter itself.
If the “SERVICE” LED and the LED of the flow diagram are flashing at the same time, it
means that the dryer outlet filter is clogged and therefore it must be replaced. This alarm
does not affect the operation of the dryer, but maintenance interventions are needed.
Please refer to the User and Maintenance manual of the filter itself.
If the “SERVICE” LED and both - LEDs of the flow diagram are flashing at the same
time, the timer for the programmed maintenance of the filters has gone off.
If the “SERVICE” LED and both - LEDs of the flow diagram are flashing at the
same time, the timer for the programmed maintenance of the desiccant material has gone
off.
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