Available options
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HDK-CNG_EN_03_2016
Available options
The following options are available for the dryer:
Dewpoint-sensing control
Regeneration gas cooler
Auxiliary heater
Dewpoint-sensing control
With a dewpoint-sensing control system, you can operate the dryer in fixed or
variable cycles. In the variable cycle, the switchover is effected in relation to the
dew point reached and the charging of the drying agent .
Dryers with the optional
dewpoint-sensing control
are equipped with a further
(second) signal contact; it is additionally used for the output of dewpoint alarms.
Regeneration gas cooler
With an air-gas heat exchanger, the regeneration gas can also be cooled,
enabling the water to condense out more effectively.
Auxiliary heater
For installation sites with temperatures under +15ºC, the wet side of the dryer
must be equipped with an auxiliary heater to prevent valves, cocks, flaps, and
other components from freezing up (methane hydrate).
Signalling contacts of the control system
The control system is equipped with a digital input for the synchronised operation
with a compressor. This feature allows for synchronised and thus efficient dryer
operation with discontinuous compressor operation.
The control system can also be equipped with an optional operation signalling
contact with which the dryer operation can be controlled from an external device.
This means that dryer operation can be started and stopped externally.
