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EN | User Manual
Available options
The following options are available for the dryer:
◊ Start-up device
◊ Outside installation
◊ Auxiliary heater
◊ Bypass line
◊ Signalling contacts of control system
◊ Compressor synchronisation
◊ Dewpoint-sensing control
◊ Pneumatic control
◊ Paint compatible design
◊ Pre- and after-fi lter
◊ Condensate drain systems for pre- and after-fi lter
Start-up device
A start-up device basically consists of a pressure holding device, which is located at the rear
of the dryer. The pressure holding device ensures that pressure can build up in the dryer and
adsorption take place.
It is always required when an empty compressed air reservoir or an empty compressed air
system must be fi lled downstream of the dryer (e.g. following weekend shutdowns and when
the pressure in the compressed air system can frequently drop below the stated operating
pressure).
Outside installation
As standard, the dryer is not suitable for outside installation, as its function and service life is
infl uenced by the following factors:
◊ Environmental humidity due to rain (or other deposit)
◊ Corrosion caused by environmental humidity or a salt-containing environment
◊ Freezing of valves, cocks, fl aps, and other components at low temperatures
Therefore, a planned outside installation must always be discussed in advance with the
manufacturer to allow specifi c technical design measures to be provided for the installation
location.
Auxiliary heater
For installation sites with temperatures under +1 ºC, the wet side of the dryer must be
equipped with an auxiliary heater to prevent valves, cocks, fl aps, and other components from
freezing up.
Bypass line
The bypass line is a "detour line", which allows the compressed air system to continue oper-
ating even whilst maintenance of the dryer is in progress. However, during this time the air is
not dried but fl ows through the bypass line past the dryer and through to the actual loads.
Filters in the bypass line are meaningful so that the actual loads are largely protected against
dirt, water, and oil droplets even whilst maintenance is in progress.
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 effi cient 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 monitored from an external device. Dryers with the optional
dewpoint-sensing control are equipped with such a contact as standard. It is used for the
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Technical product description
KE-MT 120-600
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