8. ELECTRIC CONTROLS
8.1 Control panel
Control LED (GREEN)
ON: compressor is running, unit is refrigerating.
Flashing: compressor is in start delay mode.
OFF: compressor is off, room temperature is down to set value.
Control LED (GREEN)
ON: evaporator fan is running.
Flashing: evaporator fan is in start delay mode.
OFF: evaporator fan is off. Defrost is in course.
Control LED (YELLOW)
ON: Automatic or manual defrost is in course.
Alarm LED (RED)
ON: alarm has been activated because of a malfunctioning sensor, or pressure switch
intervention, or cold room temperature exceeding allowed tolerances.
OFF: Unit is operating normally.
DISPLAY: on connection to the mains it shows OFF to indicate the condition of the unit. By
pressing ON/OFF key for 3 seconds the unit is turned ON and the display shows the cold
room temperature. In programming mode the parameters to be set are displayed; in alarm
mode the alarm code is displayed.
"SET" key: when pressed it lights up and allows room temperature to be set. During
programming it is used to pass from a submenu to an upper one.
"DOWN/ROOM LIGHT" key: in programming mode or when setting room temperature it is
used to reduce the value displayed; otherwise it is used to switch on/off the cold room light.
"SB.M./UP" key: in programming mode it is used to increase the values displayed. If pressed
for more than 5 seconds it enables manual defrost to be carried out.
"ON/OFF" key: when pressed for 3 seconds it turns the unit on or off.
"Enter" key: it gives access to programming menu and submenus. Access to the
programming mode requires the installator's assistance and should be effected only if
necessary.
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