Keylock; Adjusting The Cabinet Temperature - Gram COMPACT 220 Service Manual

During a short boot sequence, all light segments in the display are lit. After that the controller does
start up in normal operation mode.
This does mean that the refrigeration system will work to reach and maintain the factory adjusted
default set temperature:
For refrigerators (K and KG-models) this set point is 5°C (adjustable from 2 to 12°C)
For freezers (F and FG-models) this set point is -18°C (adjustable from -10 to -22°C)
The cabinet is turned off likewise, by pushing and holding the
Control lights
The following control lights are located on the display:
Compressor symbol. This LED is on while the compressor is running. Flashes during
temperature setting.
Defrost symbol. This LED is lit constantly during the defrosting cycle.
Evaporator fan symbol. This LED is turned on while the evaporator fan is running.
Temperature alarm symbol. This LED is turned on if a temperature alarm occurs. See
chapter on temperature alarms.

Keylock

A condition for any adjustments to the controller settings whatsoever, is making sure that the
controller keys are not locked. When powering up the controller the keys will automatically be locked
after two minutes.
This is done to prevent unintended changes of settings due to cleaning and daily use. Furthermore,
it is done in order to minimize the risk of unauthorized tampering with the controller.
When the display keys are locked the keylock symbol is lit.
To unlock the keys:
Push and hold any key for 5 seconds to unlock the controller keys. During this period of unlocking,
the keylock symbol flashes simultaniously with the display flashing UnL. When the controller has
been successfully unlocked, the keylock symbol turns off, and the display reverts to normal
operation.
To lock the keys:
Leaving the controller without touching any key for two minutes, will result in the keylock being
activated automatically. The change from being unlocked to being locked is shown by flashing the
keylock symbol simultaneously with the display flashing Loc for the last 5 seconds. After that the
keylock symbol is lit and the keys are locked. The display does reverts to normal operation.

Adjusting the cabinet temperature

To change the set temperature, push
display, with one decimal place after the comma.
once, flashes, and the current set point is shown in the
key for 5 seconds.
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