Danfoss AK-CC55 User Manual page 55

User Guide | Controller for appliance control, AK-CC55
Refrigerant setting (only if "r12" = 0)
Before refrigeration is started, the refrigerant must be defined. You may choose
between the following refrigerants:
1=User defined with 3 digits, see P83-85. 2=R22. 3=R134a. 4=R502. 5=R717. 6=R13.
7=R13b1. 8=R23. 9=R500. 10=R503. 11=R114. 12=R142b. 13=User defined with 5
digits. 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.
43=R450A. 45=R454B. 46=R1233zdE. 47=R1234zeZ. 48=R449B. 49=R407H
Warning: Wrong selection of refrigerant may cause damage to the compressor.
Other refrigerants: Choose setting 1 or 13 and configure three factors: P83, P84, P85
or -Ref.Fac A1, A2 and A3 - via the system unit or the app.
Digital input signal - D2
The controller has a digital input 2 which can be used for one of the following
functions:
Off: The input is not used.
1) Status display of a contact function.
2) Door function. When the input is open it signals that the door is open. The
refrigeration and the fans are stopped. When the time setting in "A04" is passed, an
alarm will be given and refrigeration resumed. (o89).
3) Door alarm. When the input is open it signals that the door is open. When the time
setting in "A04" is passed an alarm will be given.
4) Defrost. The function is started with a pulse signal. The controller will register when
the DI input is activated. The controller will then start a defrost cycle. If the signal
is to be received by several controllers it is important that ALL connections are
mounted the same way (DI to DI and GND to GND).
5) Main switch. Regulation is carried out when the input is short-circuited, and
regulation is stopped when the input is put in pos. OFF.
6) Night operation. When the input is short-circuited, there will be regulation for
night operation.
7) Thermostat band changeover. Switch to thermostat 2 (r21) when the input is short-
circuited.
8) Separate alarm function. Alarm will be given when the input is short-circuited.
9) Separate alarm function. Alarm will be given when the input is opened.
10) Appliance cleaning. The function is started with a pulse signal.
See also description on page 40.
11) Forced refrigeration at hot gas defrost when the input is short-circuited.
12) Night blinds. When the input is short-circuited the night blinds will be activated.
13) The input is used for coordinated defrost in conjunction with other controllers of
the same type.
14) The cooling is stopped with the function "Forced closing" when the input is open.
15) Case shutdown when the input is closed.
16) The light turns on when the input is closed (o38 must be set to "5").
20) Refrigerant leak alarm.
21) Allow liquid flow in the evaporator when the input is short-circuited.
Configuration of light function
(If night blind is selected, it will be synchronised with the light function).
1) Light is controlled via day/night status.
2) Light is controlled via data communication and "Light remote o39".
3) Light is controlled by door contact, defined in either o02, o37 or o84 where the
setting is selected to either 2 or 3. When the door is opened, the relay will cut in.
When the door is closed again there will be a time delay of two minutes before the
light is switched off.
4) As "2" but if there are any 15-minute network errors, the light will switch on and the
night blind will open.
5) The light is controlled via a DI1-3 input.
Activation of light relay
The light relay can be activated here, but only if defined in o38 with setting 2 or 4.
Rail heat during day operation
The ON period is set as a percentage of the time.
Rail heat during night operation
The ON period is set as a percentage of the time.
Rail heat cycle when using a relay for the function
The period of time for the aggregate ON time + OFF time is set in minutes
(If the analogue output AO1 is used for the function, the period must be configured
in P82).
© Danfoss | DCS (vt) | 2019.09
o30 Refrigerant
o37 DI2 config.
o38 Light config
o39 Light remote
o41 Railh.ON day%
o42 Railh.ON ngt%
o43 Railh. cycle
BC308437742037en-000101 | 55