Decommissioning - Gardner Denver GDD4F Operator's Manual

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Option: No loss condensate drain (NLD)

4.3 DECOMMISSIONING

All work on the dryer may only be carried out by specialist personnel!
Follow this procedure if you need to shut down the dryer:

Stop the device and permanently isolate it from the electricity mains;

Disconnect the power cable;

Take pressure off the air circuit;

Empty the tank and the internal cooling medium circuits;

If the device has to be dispatched, use the original or similar packaging and keep the device in an up-right position.
Before carrying out any work on the electrical parts, make sure that the main switch interrupts the electricity supply to the
dryer and then affix appropriate warning signs to avoid the machine being reconnected to the electricity mains!
Please consult the contents and the safety instructions in the relevant sections of these instructions for details of the correct
handling and storage of the drer. Remove any residual cooling medium from the dryer in a manner appropriate to its
properties and in accordance with the legislation in force.
If the device has to be demolished: Never open the sealed cooling assembly (compressor, evaporator and condenser) if
there may be any refrigerant or lubricating oil present!
Send the dryer to an approved waste disposal company in accordance with current environmental protection legislation. The
other materials/waste constituents must be treated in line with the provisions of the valid legislation.
Cod. 710.0138.72.00 Rev.10 – 02.2022
If the discharger not operate correctly, try to act on the TEST key to clean the mesh filter.
Never remove the discharger body. If the malfunctioning persist, contact our Customer
Service.
Before carrying out any work on the electrical parts, make sure that the main switch
interrupts the electricity supply to the dryer and then affix appropriate warning signs to
avoid the machine being reconnected to the electricity mains!
© Copyright 2022 Gardner Denver - All rights reserved
Electronic drain discharge NLD is the new discharger applicable to any
compressed air systems. It eliminates the condensate without wasting
compressed air.
Electronic drain discharge starts automatically, without the need of any
adjustment. The condensate discharge occurs to the use of an electronic sensor,
which detects the amount of condensate in the integrated water collecting tank.
The level sensor drives start and duration of the drainage, so preventing any
wasting of compressed air.
At the end of installation, put the system under pressure and push the TEST key
repeatedly to eliminate the air bubbles contained in the discharger inlet fittings.
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