Operating Status - Danfoss AK-CC55 Compact Installation Manual

Operating status

The controller goes through some regulating situations where it is just waiting for the
next sequence of the regulation. To make these "why is nothing happening" situa-
tions visible, you can see an operating status on the display. Push the info button for
3 seconds to see status. If there is a status code, it will be shown on the display. The
individual status codes have the following meanings:
Normal regulation
Waiting for end of the coordinated defrost
When the compressor is operating, it must run for at least x minutes
When the compressor is stopped, it must remain stopped for at least x minutes
The evaporator drips off and waits for the time to run out
Refrigeration stopped by main switch. Either with r12 or a DI-input
Refrigeration stopped by thermostat
The refrigeration is stopped due to too low S4 temperature
Defrost sequence. Defrost in progress
Defrost sequence. Fan delay — water attaches to the evaporator
Refrigeration stopped due to open ON input or stopped regulation
Door is open. DI input is open
Melt function in progress. Refrigeration is interrupted
Modulating thermostat control
Emergency cooling *)
Adaptive control of superheat
Start-up phase 1. Signal reliability from sensors is controlled
Manual control of outputs
No refrigerant selected
Appliance cleaning
Forced cooling
Delay on outputs during start-up
Heat function is active
Case shutdown
Operation with adaptive liquid control
Other displays:
Defrost in progress / first cooling after the defrost where the temperature is still
above the thermostat band.
Password required. Set password
Regulation is stopped via main switch or case cleaning
The main switch is set to service/manual operation
*) Emergency cooling will take effect when there is lack of signal from a defined S3 or S4 sensor or signal from the pressure transmitter is outside signal
range. The regulation will continue with a registered average cut-in frequency. There are two registered values – one for day operation and one for
night operation.
Additional information:
User Guide: BC308437742037en-000101
© Danfoss | DCS (vt) | 2019.10
(Measurement)
Ctrl. state:
(Shown in all menu displays)
S0 0
S1 1
S2 2
S3 3
S4 4
S10 10
S11 11
S12 12
S14 14
S15 15
S16 16
S17 17
S18 18
S19 19
S20 20
S23 23
S24 24
S25 25
S26 26
S29 29
S30 30
S32 32
S33 33
S45 45
S48 48
-d-
PS
OFF
SEr
AN300028324304en-000401 | 16