Quincy Compressor QOFT 20, Instruction Book

Page: 16 / 84

Instruction book
14 9829 3199 7 4
2.3 Condensate drain system
Compressor
Two condensate traps are installed on the compressor itself: one downstream of the intercooler
to prevent condensate from entering the high-pressure compressor element (Eh), the other one
downstream of the aftercooler to prevent condensate from entering the air outlet pipe.
On QOFT, the condensate traps are integrated in the intercooler and the aftercooler outlet
collector. The intercooler collector is connected to a no-loss electronic water drain (EWD) and
the aftercooler collector is connected to a mechanical drain (WSD) .
Electronic water drains (EWD)
The condensate is collected in the electronic water drains. A sensor continuously measures the
liquid level. As soon as the collector is filled up to a certain level, the outlet opens, discharging
the condensate. When the collector has been emptied, the outlet closes quickly without wasting
compressed air.
Testing the electronic water drains can be done by pressing the test button (1) on top of the
drain. Check that the valve opens for condensate discharge.
Water Separator Drains (WSD)
The condensate is collected in the mechanical water separator drains. The float inside the water
separator drain ensures that the accumulated condensate is intermitted discharged through the
automatic drain connection, without any waste of compressed air. A manual drain is also
available.
Electronic and mechanical water drains, typical example