NANO NED 4L, Инструкция

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2 General description
2.1 Functional description
General
These condensate drains have been engineered to solve the problem of discharging condensed
water from production plants and compressed air distribution systems. The specific applied
technology permits a controlled drainage of condensate without any waste of compressed air.
The condensate drain is equipped with a built-in storage tank, inside which a level sensor has been
mounted and is controlled by an intelligent electronic circuit based on a microprocessor logic. All
condensate drain functions are displayed on the control panel that is moreover equipped with a test
push button for manual drainage.
The condensate drain starts working as soon as the sensor detects water at the maximum level and
activates the opening of the solenoid valve to take the water level back down to a minimum value,
leaving a small residual quantity to prevent the system from discharging compressed air.
In the event of any fault, the control circuit activates the unclogging of possibly clogged drain pipes
by carrying out a series of forced opening/closing cycles of the solenoid valve. If this is not
sufficient, the fault is reported externally by means of a potential- free contact alarm that can be
used to draw the attention of maintenance staff in order to instruct the plant system’s control logic.
The drain may also be installed on applications that produce very aggressive condensates, such as
oil-free compressors. The presence of a built-in, easy to clean filter cup prevents the solenoid valve
from clogging.
Main characteristics
• Zero loss drain system.
• Logic based on an 8-bit microprocessor which records events on an integral flash memory.
• Revolving “Easy-Lock” connection.
• Integrated filter for the collection of impurities for easy maintenance.
• Fluoroelastomer (FKM) diaphragm.
• Remote alarm connection for warning.
• Tank in aluminium with a treatment for operating with aggressive condensation.
• Secondary condensate input that is ideal for low attachment points. (Not for NED 4L and NED
6LC.)
Instruction book
2920 7213 30 9