Danfoss AK-CC55 Water Loop - Special Wiring Details; Data Communication; External Solid State Relay for Rail Heat; Coordinated Defrost Via Cable Connections

Danfoss will not be responsible for any goods, or plant components, damaged as a result of the above defects. It is
the installer's responsibility to check the installation thoroughly, and to t the necessary safety devices.
Special reference is made to the necessity of signals to the controller when the compressor is stopped and to the
need of liquid receivers before the compressors.
Your local Danfoss agent will be pleased to assist with further advice, etc.
Special wiring details
Data communication
Figure 52: Data communication

IMPORTANT:
It is important that the installation of the data communication cable is performed correctly with sucient distance
to high voltage cables.
External solid state relay for rail heat
Figure 53: External solid state relay for rail heat
AO1/
PWM
60 61 70 71
SSR
Danfoss 80G8234
0 / 10 V Pulse Width Modulated (PWM)
Max. 15 mA.
Coordinated defrost via cable connections
Figure 54: Coordinated defrost via cable connections
Max. 10
The following controllers can be connected in this way:
EKC 204A, AK-CC 210, AK-CC 250, AK-CC 450, AK-CC 550 and AK-CC55.
AK-CC55 Water Loop
© Danfoss | Climate Solutions | 2022.04 BC378540472015en-000101 | 34