GEA Grasso System Control Operating Instructions Manual page 13

Key
Functions of the F1 ... F4 buttons
These functions are only available if the symbols can be seen in the display.
Standard functions of the Shift button
+ or
+
FOR TWO STAGE CHILLER/ PACKAGES WITH SCREW
Function
Call up the menu overview
Return or cancel input
Acknowledge, reset failure and warning
Confirm input
Press the button once for display of a help text
Switch over to the 2nd keyboard level
Cursor keys
Back to previous display
Go to the menu item described
Move o next display
Change between the possible selections
Alter the display contrast
_805011_om_gsc_sp2_gbr_1_.doc
OPERATING INSTRUCTIONS
GRASSO SYSTEM CONTROL
COMPRESSORS
13