Danfoss AK-CC 750 series Manual page 85

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Setting the temperature
1. Press the centre button to display the temperature setting
2. Press the top or bottom button and set the new value
3. Press the centre button to save the setting.
Read the temperature at the defrost sensor)
• Briefly press the bottom button
Manual start or stop of defrost
• Press the bottom button for 4 seconds.
Read codes
Normally the selected temperature signal can be read from the
display, but under certain conditions the display may show other
codes in order to notify the user of various operating states.
Function Display read
Main switch When the "main switch" is set to OFF, the display will
read "OFF"
Defrost During defrost, the display will read "-d-".
The display will switch to normal temperature display
when the thermostat temperature is in place, or the
delay period "High temp alarm delay" has expired .
Case clean- When appliance cleaning is activated, the display will
ing read "Fan" to indicate that the fans are running in order
to defrost the evaporator. When the second stage of ap-
pliance cleaning is activated, the display reads "OFF" in
order to indicate that the appliance can now be cleaned
as all outputs are in standby position.
PAS Requirement for access code. If operation of the display
is to be protected by an access code, both the defini-
tion and the access code must be set in the controllers'
authorisation menu for the local display (LOCD).
Alarm The three LED's will flash if an alarm is triggered. The
alarm code can be viewed by pressing the top button.
- - - When three dashes appear, the valid temperature read-
ing is faulty (sensor switched off or short-circuited), or
else the display has been deactivated.
th1/th2 When the thermostat bank is changed by pressing a
button, the display will display for 10 seconds which
thermostat band is active.
- - 1 Initiation, Display is connected to output A
- - 2 Output B. etc.
Get off to a good start when use of display
The following procedure will start regulation as quickly as possible:
1. Open parameter r12 and stop regulation (in a new appliance not
set previously, r12 will already be set to 0, which means regula-
tion stopped)
2. Open parameter o93 and set the configuration lock to a value of
0 (=OFF)
3. Open parameter 062 = Select a predefined use on the basis
of the electrical connections which appear at the end of the
manual. After configuration of this function, the controller will
shut down and restart.
4. Once the controller has restarted, open parameter 093 and the
configuration lock is opened = value 0.
5. If AKV valves are used, you must also select refrigerant via
parameter o30.
6. Open parameter r12 and start regulation.
7. When there is a network: set the address for the address switch
in the controller.
8. Send this address to the system unit by activating a service pin.
AK-CC 750 - 080Z0130 & 080Z0139
Menu overview:
A display can be connected for each evaporator section. In each
display, the following settings/readings can be undertaken for the
evaporator section in question.
Parameter
name
r12
r22
r37
r38
o30
o46
o62
o93
u17
u20
u21
u24
u26
u36
u68
X = When the controller is not set up, the display will only read the marked settings
RS8GM222 © Danfoss 10-2014
Function
Main switch:
0: Controller stopped
1: Regulation
Select thermostat band:
1 = Thermostat band 1 is active
2 = Thermostat band 2 is active
Setting of cut-out value for the thermostat in section
A/B/C/D
Setting of cut-out value for thermostat band 2
Setting of refrigerant (must be set if AKV valves are
used)
0= not selected, 1=R12. 2=R22. 3=R134a. 4=R502.
5=R717. 6=R13. 7=R13b1. 8=R23. 9=R500. 10=R503.
11=R114. 12=R142b. 13=User def. 14=R32. 15=R227.
16=R401A. 17=R507. 18=R402A. 19=R404A.
20=R407C. 21=R407A. 22=R407B. 23=R410A.
24=R170. 25=R290. 26=R600. 27=R600a. 28=R744.
29=R1270. 30=R417A. 31=R422A. 32=R413A.
33=R422D. 34=R427A. 35=R438A. 36=XP10.
37=R407F. 38*=R1234ze. 39*=R1234yf.
*) Only 080Z0139
Case cleaning function. Set:
0: Case cleaning not started
1: Only fan running (evaporator defrost)
2: All outputs are OFF (cleaning may be carried out)
Selection of predefined configuration.
This setting will give a choice from a series of prede-
fined combinations, which at the same time establish
the connection points.
At the end of the manual there is an overview of the
options and connection points.
After configuration of this function, the controller will
shut down and restart.
Configuration lock
You can only select a preset configuration or change
refrigerant when the configuration lock is open.
0 = Configuration open
1 = Configuration locked
Actual air temperature for the thermostat in section
A/B/C/D
Actual temperature at S2 sensor. Section A/B/C/D
Actual superheat. Section A/B/C/D
AKV valve opening degree. Section A/B/C/D
Actual evaporating temperature. Section A/B/C/D
Actual air temperature for product sensor in section
A/B/C/D
Actual air temperature for alarm thermostat in sec-
tion A/B/C/D
At start-
up
x
x
x
x
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