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Unit Operation

There are amber indicator LED's located next to each of the

four function keys below the display. The LED will glow

amber when that function is active.

A red indicator LED is located between the ON Key and OFF

Key at the left side of the display. This indicator will glow if

Alarm Code 91 Check Electric Ready Input occurs. It will also

light if a 15 pin Thermo King data cable is connected to the

serial port on the back of the controller (DPD).

The primary and secondary key uses are shown in the table

below. If the key has more than one use the primary use is

shown first.

ON Key

Pressing the ON Key will turn the unit on.

Secondary Use - When the unit is on, pressing this key and the PRETRIP Key at the same time will

display any alarm codes that are present.

Secondary Use - When the unit is on, pressing and holding this key allows the UP ARROW Key

and DOWN ARROW Key to increase or decrease the display brightness.

Secondary Use - When the unit is on, pressing this key will return to the Standard Display of box

temperature and setpoint.

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Sharp R-880S Betreibershandbuch Seite 41