Emerson Operator’s Guide to Using the E2, E2 Home Screen, BX Home Screen RX Home Screen

12 Operator’s Guide to Using the E2

12.1 The E2 Home Screen

The Main Status or Home screen (Figure 12-1and Figure 12-2) is divided into sections that display the cur- rent status in areas of importance in the system (i.e., for RX: suction groups, compressor stages active, circuits, condensers, sensor control, and for BX: OAT, demand control, power monitoring, light schedules, zones, AHUs, and sensor control). Time, date, and alarm status are dis- played along the top of the screen. The display is backlit, but turns off to save energy after a determined amount of time. Press any key to bring the display back up.

The Home screen acts as a master and default screen for all the functions of E2 and can be customized accord- ing to the user’s needs (see Section 12.5, Customizing the Home Screen).

Circuit Status Section

To the right of the Suction Groups section is the Circuit Status section. Both the Standard Circuits and the Case Controllers are listed in this screen. The circuit names, their current status, and temperatures are listed.

Condenser Section

This section is located at the bottom left of the screen and contains information on the status of the condenser, such as the discharge setpoint and individual fan states.

Sensor Control

Below the Circuits section at the bottom right of the screen is the Sensor Control section where Control Value and Command information are displayed.

12.1.2 BX Home Screen

12.1.1 RX Home Screen

Figure 12-1- RX Home Screen

Suction Groups Section

The first section of the RX Home screen is the Suction Groups section located in the top left corner. The large let- ters have the name of Suction Group 1 along with infor- mation on compressor stages active, and the current pressure setpoint. Setpoints, status, percentages of capaci- ties, and which stages are active for each suction group are displayed as well. The suction group that is displayed in the large block at the top left of the screen is the group that is named alphabetically first of the suction groups.

	11
	10
	9
6
7	8
1 Outside Humidity	7 Function Button Index (5)
2 Outside Air Temperature	8 Sensor Control
3 Season	9 Zones
4 Light Level (FTC)	10 Air Handling Units
5 Demand Control	11 Light Schedules
6 Power Monitoring

Figure 12-2- BX Home Screen

OAT Section

The upper-left hand section of the BX Home screen contains status information for four different values, including outside air temperature, humidity percentage, season, and light level.

Demand Control Section

Directly below the OAT section is demand control sta- tus information, which shows the number of applications and number of loads being shed.

The E2 Home Screen Operator’s Guide to Using the E2 • 12-1