Quincy Compressor QED 1050 Instruction And Maintenance Manual - page 24
6
Collector
7
Valve seat
8
Outlet
The condensate enters the Electronic Water Drain (EWD) via inlet (1) and accumulates in collector (6). A
capacitive sensor (5) continuously measures the liquid level.
The pilot valve (3) is activated as soon as the collector is filled up to a certain level. Diaphragm (4) opens
outlet (8), discharging the condensate.
When the collector has been emptied, the outlet closes quickly without wasting compressed air.
When the controller registers a malfunction, the red alarm LED on the control panel of the EWD starts flashing,
a warning appears on the display of the
controller and the electronic drain valve will automatically change
to
the alarm mode, opening and closing the valve according to a sequence as shown below . This condition
continues until the fault is remedied. If the fault is not remedied automatically, maintenance is required.
Drain frequency during alarm condition
Testing the Electronic water drain
Control panel, EWD
Briefly press the TEST button and check that the valve opens for condensate discharge.
Instruction book
2920 1818 00
23