AK-CT 450A User Guide RS8GR602 © Danfoss 2016-10 3
Applications
Here is an overview of the controller’s usage options.
• Standard appliance or cooling room with one valve,
one evaporator and one cooling section.
• Refrigeration appliance with one valve, two evaporators
and two cooling sections (each with its own temperature-
measuring function).
• Refrigeration device with one valve, one evaporator and
two cooling sections.
A setting will congure input and outputs so that the controller’s
operation interface is directed at the selected application.
The current settings for the respective uses can be found
on page 34.
Installation benets
The controller is designed to provide a number of advantages
when installed by the refrigeration appliance manufacturer,
such as:
High relay load
Load connection/disconnection is controlled by a voltage
measurement and a current measurement, so that the relay’s
switch function can operate under optimal conditions.
The controller can then connect loads of up to 16 A, without
the use of auxiliary relays.
Spring clamps
All cable connections are made using plugs with spring switches.
This allows for fast and easy installation.
Parallel power point
Several of the outlets have double or triple connections points,
so the use of external loop clips is not usually necessary.
Structure of the controller
The controller consists of hardware type AK-CT 200A and a
software identity code AK-CT 450A.
This software identity code is delivered in a separate plug
and must be placed in an RJ45 plug in the hardware. It is rst
necessary to mount the plug when conguring the controller.
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