18
Operation (Continued)
EWS Start/Stop
When the water level drops and the EWS START electrode is completely exposed a signal is sent to the EWS to begin
operation. EWS operation continues until the tip of the EWS STOP probe is submerged.
Note: EWS responds to electronic water level control signals only when in Automatic Mode
EWS Bypass
In the event the EWS cannot keep up with water demand, makeup water will flow through the bypass to maintain evaporative
cooling system operation. Bypass valve will open (powered) if the water level falls below the “Bypass On” probe tip. The bypass
valve remains open until water level rises to the EWS Start probe.
Note: Bypass water has not been treated by the EWS and may affect desired cycles of concentration
Hi Level Alarm (By Others)
The 5-probe EWLC is equipped with a high-water level relay and probe. High water level is sensed when the high alarm probe
tip is submerged. The high alarm relay can be connected to a user supplied device such as a warning light or audio alarm.
Note: Refer to Troubleshooting section if high level alarm frequently occurs
Touch Screen Display
A backlit LCD touch screen is mounted under a protective cover on the Water Saver Control Panel. The screen displays
operating status and data. Select the desired item by pressing the icon on the screen.
Home Screen
The Home Screen displays the present operating mode (Auto or Manual), current operating status (Operating, Standby), and
Active program. The display also provides icons to view other screens.
Figure 18: Sample Home Screen
User Display
