Installation
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 could still
present problems. Electronic controls are no substitute for normal, good engineering practice.
Danfoss will not be responsible for any goods, or plant components, damaged because 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.
Integration into network systems
The EKC 223/224 controllers have a TTL port on the rear side of the controller and this TTL port allows the controller
to be connected to various interfaces
The RS-485 adapter (EKA 21x) allows to integrate the controller on a Modbus eldbus. The controller will be
supported by the following Danfoss front ends:
• AK-SM 720 system manager
• AK-SM 800 system manager
• AK-SM 800A system manager
Figure 13: Integration of EKC 22x to RS-485 Modbus eldbus on AK-SM 8xx system manager
EKC 223, 224
RS-485 adapter
(EKA 206)
RS-485 Modbus
System Manager
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Danfoss
80G8449
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© Danfoss | Climate Solutions | 2023.05 BC432222569027en-000201 | 15
Case controller, type EKC 223 and EKC 224
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