Quincy Compressor QED 650 Instruction And Maintenance Manual page 24

Instruction book
6
7
8
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.
Testing the Electronic water drain
Briefly press the TEST button and check that the valve opens for condensate discharge.
2920 1818 00
Collector
Valve seat
Outlet
Drain frequency during alarm condition
Control panel, EWD
23