Danfoss AKC 25H1

AKC 25H1 Function description RC.1J.Z4.02 © Danfoss 09/1999 21
The following messages can be connected to a “DI input” at your option. This is done with the
“configuration of inputs” setting.
For each individual DI input you may furthermore define the importance of the alarm:
DI( ) Dest [ 1,
2, 0 ]
Air flow switch Error report from the air flow switch.
Check the flow switch.
Compr. no( ) current cut out Alarm from AKC 22H.
Check the alarm input on AKC 22H.
Compr. no( ) disch temp cut out Alarm from AKC 22H.
Check the alarm input on AKC 22H.
Comp. no( ) disch press. cut out Alarm from AKC 22H.
Check alarm input on AKC 22H.
Compr. no( ) motor prot. cut out Alarm from AKC 22H.
Check alarm input on AKC 22H.
Compr. no( ) not in auto Wrong setting of switch on alarm module
AKC 22H. Put switch in pos. “AUT”.
Comp. no( ) safety cut out Signal on input DI( ) interrupted.
Check the compressor’s safety circuit.
Comp. no( ) oil press. cut out Alarm from AKC 22H.
Check alarm input on AKC 22H.
Cond. no( ) safety cut out Signal on input DI( ) interrupted.
Check the condenser’s safety circuit.
Condensate pump fault Drip tray pump defective.
Check the pump.
Current fault Faulty supply voltage.
Check the earth-leakage circuit breaker.
Flow pump fault Fault in the refrigerant circulation.
Check the refrigerant pump.
High condensate level Drip tray level too high.
Check the drip tray.
Liquid flow switch Error report from the liquid flow switch.
Check the flow switch.
Low liquid level Low refrigerant level.
Check the amount of refrigerant.
Phase fault Faulty supply voltage.
Check the supply voltage.
Refrigerant leak Refrigerant is leaking.
Check the unit that monitors leakage of
refrigerant.
This is how the various messages are transmitted:
Information is in principle sent twice.
1) An alarm message when the error is discovered.
2) A message about cancellation of the alarm situation, when the error disappears again.
(In connection with a sensor alarm, there may be 10 minutes between the two messages).
This procedure has a different influence on the below-mentioned systems:
Single systems (systems with control panel type AKA 21)
Information can be shown on the screen, when an “E” (error) is observed.
The error message cannot be removed from AKA 21, as long as the cause of the error
has not been removed. When the cause of the error message has been removed, the
error message will remain visible in AKA 21 until it is acknowledged by pushing
“Enter”.