AK-CC 550
Instructions RI8LN802 © Danfoss 2/2012
7
Light-emitting diodes (LED) on front panel
The LED’s on the front panel will light up when the relevant relay
is activated.
= Refrigeration
= Defrost
= Fan running
The light-emitting diodes will flash when there is an alarm.
In this situation you can download the error code to the display
and cancel/sign for the alarm by giving the top button a brief
push.
The buttons
When you want to change a setting, the upper and the lower
buttons will give you a higher or lower value depending on the
button you are pushing. But before you change the value, you
must have access to the menu. You obtain this by pushing the
upper button for a couple of seconds - you will then enter the col-
umn with parameter codes. Find the parameter code you want to
change and push the middle buttons until value for the parameter
is shown. When you have changed the value, save the new value
by once more pushing the middle button.
Examples
Set menu
1. Push the upper button until a parameter r01 is shown
2. Push the upper or the lower button and find that parameter you
want to change
3. Push the middle button until the parameter value is shown
4. Push the upper or the lower button and select the new value
5. Push the middle button again to freeze the value.
Cutout alarm relay / receipt alarm/see alarm code
• A short press of the upper button
If there are several alarm codes they are found in a rolling stack.
Push the uppermost or lowermost button to scan the rolling
stack.
Set temperature
1. Push the middle button until the temperature value is shown
2. Push the upper or the lower button and select the new value
3. Push the middle button again to conclude the setting.
Reading the temperature at defrost sensor (Or product sensor, if
selected in o92.)
• A short press of the lower button
Manuel start or stop of a defrost
• Push the lower button for four seconds.
Display
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.
Operation
Get a good start
With the following procedure you can start regulation very quick-
ly:
1
Open parameter r12 and stop the regulation (in a new and not
previously set unit, r12 will already be set to 0 which means
stopped regulation.)
2
Select electrical connection based on the drawings on page 2
and 3
3
Open parameter o61 and set the electric connection number in
it
4
Now select one of the preset settings from the table
Auxiliary schedule for
settings (quick-setup)
Case
Room
Defrost stop on
Defrost stop on
time
S5
time
S5
Preset settings
(o62)
1
2
3
4
5
6
Temperature (SP)
2°C
-2°C
-28°C
4°C
0°C
-22°C
Max. temp. setting (r02)
6°C
4°C
-22°C
8°C
5°C
-20°C
Min. temp. setting (r03)
0°C
-4°C
-30°C
0°C
-2°C
-24°C
Sensor signal for thermo-
stat. S4% (r15)
100%
0%
Alarm limit high (A13)
8°C
6°C
-15°C
10°C
8°C
-15°C
Alarm limit low (A14)
-5°C
-5°C
-30°C
0°C
0°C
-30°C
Sensor signal for alarm
funct.S4% (A36)
0%
100%
0%
Interval between defrost
(d03)
6 h
6h
12h
8h
8h
6h
Defrost sensor: 0=time,
1=S5, 2=S4 (d10)
0
1
1
0
1
1
DI1 config. (o02)
Case cleaning (=10)
Door function (=2)
Sensor signal for display
view S4% (017)
0%
Note: For applications 9 and 10 the sensor weighting for the S3/S4 sensors is not used for the
thermostat, alarm thermostat and display readings as the sensor uses are predefined.
5
Open parameter o62 and set the number for the array of preset-
tings. The few selected settings will now be transferred to the
menu.
6
Open parameter n57 and select method for measuring of
evaporator pressure Pe or S1 (factory setting is Pe pressure
transmitter)
7
If pressure transmitter Pe is used you must select refrigerant via
parameter o30
8
Open parameter r12 and start the regulation
9
Go through the survey of factory settings. The values in the grey
cells are changed according to your choice of settings. Make any
necessary changes in the respective parameters.
10
For network. Set the address in o03
11
Send address to system unit:
• MODBUS: Activate scan function in system unit
• If another data communication card is used in the controller:
- LON RS485: Activate the function o04