Emerson E2 operation manual Overrides, List menu and choose End Manual Mode

cuit Bypass screen opens.

Figure 12-14- Circuit Bypass Screen (RX-400 Version Shown)

4.The Circuit Bypass screen (see Figure 12-14) will display the circuit name, its current state, and the bypass state. The Bypass Command field will be highlighted.

NOTE: If the case circuit has been placed in Clean Mode, it must be taken out of Clean Mode. Follow the procedures up to the Option

List menu and choose “End Manual Mode.”

•End Manual Mode - Selecting this command will end any defrost cycle or the Clean Mode initiated manually.

If the defrost time needed is shorter than what the nor- mal programmed defrost time allows or if in Clean Mode, follow the procedures to the Option List menu and select End Manual Mode.

12.7 Overrides

If a compressor stage or a fan on the condenser needs to be bypassed, follow these instructions:

1.From the default Home screen, arrow to either the COMPRESSOR STGS or FAN STAGES sections and highlight the stage or fan to be bypassed. Press Enter to access the override option from the menu.

Figure 12-15- Option List Selection Screen

5.Press (LOOK UP). The Option List Selec- tion screen (see Figure 12-15) will give you five choices of defrost modes.

•No Action - Normal (no manual defrost) state.

•Defrost - This is the normal defrost mode. The defrost ends according to the terminating device (sensor) or fail-safe time, whichever occurs first.

•Emergency Defrost - The defrost time goes the full duration of programmed defrost time and ignores any defrost termination sensors.

•Clean - This mode disables all refrigeration and defrost so that the case can be cleaned or serviced.

Figure 12-16- Override Update Screen (RX Version Shown)

2.The Override Update screen appears

(see Figure 12-16). Press the or to enter

Yes to place the stage in override. Scroll down one space to enter the Override Time.

3.Choose the Override Value of either OFF or ON using or .

The compressor stage or condenser fan stage in over- ride mode will be marked with a cyan blue background in the Main Status screen indicating that the override is in effect.

12-10 • E2 RX/BX/CX I&O Manual 026-1614 Rev 4 5-JAN-2013