Indicator is lit, the indicator will remain lit

Section VIII - Power$ync II™ Operation

Press the UP key to advance to the next menus (shown below) or ENTER to exit.

**STAGE 1 DISCH. PRESSURE TRANSDUCER** A/D CONVERTER READING______ OFFSET______

COMPUTED PRESSURE READING______

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

**STAGE 2 DISCH. PRESSURE TRANSDUCER** A/D CONVERTER READING______ OFFSET______

COMPUTED PRESSURE READING______

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

**FLUID PRESSURE TRANSDUCER**

A/D CONVERTER READING______ OFFSET______

COMPUTED PRESSURE READING______

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

The following menus show temperature probe information. These readings are more difficult to utilize, as the RTD probes are resistance devices, whose signals are processed before input to the A/D converter. Of more interest will be the OFFSET values. If these values are off by a large amount or show a variance in one RTD, a potential fault could be indicated.

**PACKAGE DISCH. RTD TRANSDUCER **

A/D CONVERTER READING______ OFFSET______

COMPUTED PRESSURE READING______

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

**STAGE 1 DISCH. RTD TRANSDUCER**

A/D CONVERTER READING______ OFFSET______

COMPUTED PRESSURE READING______

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

**STAGE 2 INPUT RTD TRANSDUCER**

A/D CONVERTER READING______ OFFSET______

COMPUTED PRESSURE READING______

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

**STAGE 2 DISCH. RTD TRANSDUCER**

A/D CONVERTER READING______ OFFSET______

COMPUTED PRESSURE READING______

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

Press ENTER to return to the Compressor Diagnostic Menu.

Press ENTER to return to Compressor Maintenance Menu 3, and press the UP key to advance to Compressor Maintenance Menu 4.

**COMPRESSOR MAINTENANCE MENU 4** EDIT MODEM INIT SEQUENCE ➔ PRESS F1 CLEAR MUFFLER FLAGS ➔ PRESS F2

UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU

Press F1 to enter the MODEM INIT SEQUENCE editor. This menu should not require any adjusting, as it has been configured at the factory for the modem being used.

MODEM INITIALIZATION INIT:

ATE0&D2S0=1&E3&RD1&C4#F0$R1&E12$E14&E1

* F1 TO EDIT/ENTER TO ACCEPT VALUE

Press ENTER to exit this menu.

From Compressor Maintenance Menu 4, press F2 to enter the muffler flag menu.

CLEAR WARNINGS ON MUFFLER BACK PRESSURE

RESET FLAG ON INTERSTAGE BLOWDOWN	➔ F1
RESET FLAG ON STG. 2 BLOWDOWN	➔ F2
PRESS ENTER TO RETURN

This menu is used to cancel the flag set by the detection of residual pressure during blowdown when the compressor unloads. The unloaded pressure in the piping should be below 5 psig during the unload period. If not, a flag will be set, and the HIGH DISCHARGE PRESSURE indicator will be blinking at 1 second intervals if the STAGE 2 blowdown fails to reach the 5 psig trip point. Likewise, the HIGH INTERSTAGE PRESSURE light will blink when the interstage does not reach the 5 psig point. If the setting is cleared while the