toggle the state of the pump from the ON-LINE to OFF-LINE state.

Setting Pump Lead/Lag Times and Activating Pump Lead/Lag Operation

While in the Configuration Menu, the pump lead/lag (rotation) can be enabled or disabled. Simply press the Process or Recirculation Pump Interval button on the screen to toggle between Enabled and Disabled.

The interval between rotating pumps may also be setup in this screen. Press the CW Pump Rotation Interval button to bring up the time entry screen. Acceptable range is 50-200 hours.

Viewing Pump Run Times

From the Main Menu, use the Up or Down buttons to highlight either the “Chilled Water Process Pump Hourmeters” or “Chilled Water Recirc Pump Hourmeters” menu. Then

press to display the hourmeters.

Note: This is a complete list of all pumps that may be included in the system. Any pump that is not included in the system will not accumulate time.

The Pump Run Time screen displays:

Figure 14

Pump Run Time Display Screen

Page 58 of 77

SCW Series Central Chilling Stations

Page 58
Image 58
Sterling SCW Series installation manual Pump Run Time Display Screen