Danfoss AK-CC55 Installation Manual - Page 8

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1. Data Communication

Operation with setting display

Display AK-UI55 Set

The values will be shown with three digits, and with a setting you can determine whether the temperature is to be shown in °C or in °F.

Lights up in event of:

Energy optimization

Cooling

Defrosting

Fan operation

The display can give the following messages:

-d-

Defrost is in progress

Err

The temperature cannot be displayed due to a sensor error

Err

The display cannot load data from the controller. Disconnect and then reconnect the display

ALA

The alarm button is activated. The first alarm code is then shown

- - -

Top position in the alarm queue

- - -

Bottom position in the alarm queue

Loc

The configuration is locked. Unlock by pressing (for 3 seconds) on the 'up arrow' and 'down arrow' simultaneously

UnL

The configuration is unlocked

- - -

The parameter has reached min. or max. limit

A password is required for access to the menu

Fan

Appliance cleaning has been initiated. The fans are running

OFF

Appliance cleaning is activated and the appliance can now be cleaned

OFF

The main switch is set to Off

SEr

The main switch is set to service / manual operation

CO2

Flashes: Will display in event of a refrigerant leakage alarm, but only if the refrigerant is set up for CO2

Factory setting

If you need to return to the factory-set values, it can be done in this way:

- Cut off the supply voltage to the controller

∧

∨

- Keep up

arrow buttons depressed at the same time as you reconnect the supply voltage

" and down "

- When FAc is shown in the display, select "yes".

8 | AN294432763974en-000201

Lights in event of alarm — press on alarm button — alarm relay is reset — alarm code displayed — e.g. "A1"

Alarm codes are shown on page 17.

Long press (3 seconds) gives access to the

information menu "InF".

Up arrow / Down arrow / Arrow to left:

Navigation in the menu and setting of values.

Long press (3 seconds) will start a defrost, "dEF" is

shown in the display. Ongoing defrosting can be

stopped by a long press.

SET:

Long press (3 seconds) gives access to the "SEt" menu.

If the operation is locked with a password, "PS" is shown. Enter the code.

Shows the setting for a chosen parameter / saves a changed setting.

Short press gives access to entering of the thermostat's cut-out limit.