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4. Press the top or bottom button and set the new value
5. Press the centre button again to save the value.
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, but not
until after the delay period "Max. Disp. -d- delay".
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.
CO2
FLASHING. There is a signal from a refrigerant leak
sensor
- - -
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.
AL 1
Alarm from section A. 2=B. etc.
- - 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 (stepper) 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 750A
RS8HP102 © Danfoss 2018-09
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
Function
name
r12
Main switch:
0: Controller stopped
1: Regulation
r22
Select thermostat band:
1 = Thermostat band 1 is active
2 = Thermostat band 2 is active
r37
Setting of cut-out value for the thermostat in section
A/B/C/D
r38
Setting of cut-out value for thermostat band 2
o30
Setting of refrigerant (must be set if AKV / stepper
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=R513A.
37=R407F. 38=R1234ze. 39=R1234yf. 40=R448A.
41=R449A. 42=R452A.
o46
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)
P81
Selection of pre-set application group:
1= group 1: o62 + page 98-101
2= group 2: o62 + page 102-105
o62
(P81 must be set before o62 can be set)
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.
o93
Configuration lock
You can only select a preset configuration or change
refrigerant when the configuration lock is open.
0 = Configuration open
1 = Configuration locked
u17
Actual air temperature for the thermostat in section
A/B/C/D
u20
Actual temperature at S2 sensor. Section A/B/C/D
u21
Actual superheat. Section A/B/C/D
u24
AKV valve opening degree. Section A/B/C/D
u26
Actual evaporating temperature. Section A/B/C/D
u36
Actual air temperature for product sensor in section
A/B/C/D
u68
Actual air temperature for alarm thermostat in sec-
tion A/B/C/D
X = When the controller is not set up, the display will only read the marked settings
At start-
up
x
x
x
x
x
93
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