Operating The Equipment; Overview Of Controls; Starting The Equipment; Stopping The Equipment - Parker DME012 Manual De Instrucciones

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4 Operating the equipment

4.1 Overview of Controls

The facia of the dryer consists of indicators only as follows:
1
Power "ON" Indicator
2
ECO (DDS) Indicator
3
Column A pressure Gauge
4
Column B pressure Gauge

4.2 Starting the equipment

Start-up should be undertaken by a Parker domnick hunter trained, qualified and approved service engineer.
1.
Ensure that the isolation valves on the inlet and the outlet of the dryer are closed.
2.
Connect the electrical supply to the dryer and verify that the Power On indicator is illuminated.
3.
Slowly open the isolation valve on the inlet of the dryer. Verify that there are no leaks.
4.
Test the condensate drains of the filters and verify that they are discharging correctly into a suitable collection vessel.
5.
When the dryer is pressurised to full system pressure, slowly open the outlet isolation valve.
If a bypass line has been fitted, close the bypass valve.
6.
Verify that the column pressure gauges are cycling between zero and full system pressure every three minutes.
No further intervention is required for normal operation.
Dewpoint Dependent Switching (DDS) - optional
If the dryer is producing air at a better dewpoint than specified the DDS system will hold the dryer at a point just before the changeover occurs.
The green "ECO" LED will illuminate and both pressure gauges will read full system pressure.
Note: Factory set at -40°C -40°F (not adjustable)

4.3 Stopping the equipment

1.
Close the isolation valve on the outlet followed by the isolation valve on the inlet.
If a by-pass line has been fitted, simultaneously open the by-pass valve.
2.
De-pressurise the dryer by venting through the drain ball valve on the outlet dust filter.
Note: The drain valve should be opened gradually.
3.
Disconnect the electrical supply to the dryer.
10
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Operating the equipment

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