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2.7
Optional equipment
Precautions
Available options
• Electronic drain (EWD)
The electronic drain is optional on the WSD and the UD filter.
The electronic drain is a zero-loss, electronically operated drain valve, specially designed to
drain oil and water. A sensor detects the liquid level. If the level exceeds a preset value during
a fixed programmed time, a solenoid valve is activated, and the condensate is discharged via
drain outlet (6). Next, the solenoid valve closes, and condensate is collected again. This way,
the loss of air is reduced to a minimum.
16
1. Make sure that all electrical wiring is installed in compliance with the applicable
regulations.
2. Installation must always be performed by a qualified technician.
3. Installation must be carried out in compliance with the circuit diagrams and connection
drawings provided.
Some precautions are general and may not apply to your optional equipment.
All responsibility for any damage or injury resulting from neglecting these precautions, or
non-observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
2212 0215 19
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