AK-CC
460
Instructions RI8SE202 © Danfoss 07/2017
3
Coordinated defrost via
data communication
Coordinated defrost via
cable connections
The following controllers can be connected
up in this way:
EKC 204A, AK-CC 210, AK-CC 250,
AK-CC 450, AK-CC 460, AK-CC 550,
Refrigeration is resumed when all
controllers have “released” the signal for
defrost.
The setting of controllers to coordinate
their defrosting takes place in the
gateway/system manager.
Refrigeration is resumed when all
controllers have “released” the signal for
defrost.
DO6
Light relay
There is connection between terminal 17 and 18 when the
light must be on.
DO7
Rail heat
There is connection between terminal 20 and 21 when the rail
heat is on.
DI3
Digital input signal
Safety circuits compressor 1 and 2
The signal must have a voltage of 0 / 230 V a.c.
Data communication
If data communication is used, it is important that the installation
of the data communication cable is performed correctly.
See separate literature No. RC8AC…
Electric noise
Cables for sensors, DI inputs and data communication must be
kept separate from other electric cables:
- Use separate cable trays
- Keep a distance between cables of at least 10 cm
- Long cables at the DI input should be avoided
Installation considerations
Accidental damage, poor installation, or site conditions, can give
rise to malfunctions of the control system, and ultimately lead to a
plant breakdown.
Every possible safeguard is incorporated into our products to
prevent this. However, a wrong installation, for example, could still
present problems. Electronic controls are no substitute for normal,
good engineering practice.
Danfoss wil 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 fit 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.
max. 10