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Manual RS8EB102 © Danfoss 09-2005
EKC
319A
Introduction
Application
The controller limits the pressure gas temperature in compressors
by opening up for liquid injection in the suction line.
System
A temperature sensor will register the pressure gas temperature.
If the temperature reaches the set temperature value, opening of
the valve will be commenced.
A PI regulation will adapt the opening degree of the valve so that
the temperature will be limited.
Temperature sensor
Type AKS 21 can be used. It can stand the high temperature.
Valve
If the liquid injection is carried out directly in the suction line an
expansion valve type AKV, or a type AKVA (for NH
3
), is used. The
capacity requirement is determined by the size of the valve. If the
compressor is provided with a connection for liquid injection a
pulse solenoid valve type EVRP is used in the liquid supply.
Alarm function
The controller will sound an alarm if the set alarm limit is ex-
ceeded.
The alarm will activate the alarm relay.
Extra options
PC operation
The controller can be provided with data communication, so that
it may be hooked up with other products in the ADAP-KOOL®
range of refrigeration controls. Operation, moni toring and data
collection can then be performed from a PC - either in situ or at a
service company.
EKC 319A
Literature survey:
Manual for EKC 319A .................................................................RS8EB..
Instructions for EKC 319A ........................................................RI8HY..
Installation guide, "Data communication link
for ADAP-KOOL® " .................................................................RC8AC..
