Specifications

6 RK0YG302 © Danfoss 05/2007
Local Control & Alarm
EKC 331T Capacity control
Supervisory
Control
AK-PC 530 Reliable control
Supervisory
Control &
Optimisation
AK-PC 840 Intelligent control
Compressor- and condenser controls
Introduction
Compressor and condensers capacity controls are used from
compact systems with just two hermetic compressors up to large
power-packs with multiple semi-hermetic compressors equipped
with variable speed drives and unloaders.
ADAP-KOOL® Pack controls oer dierent levels of solutions: from
compressor capacity control and step/variable control with local
alarm ensuring accurate control and operational condence, to
advanced solutions of control up to 12 compressors or fans with
intelligent control that optimised both suction and condensing
pressure according to the load and external temperatures. Intel-
ligent features such as oating condensing pressure control and
suction pressure optimisation are enabled.
Further energy savings are achieved with variable speed control
of condenser fans and compressors and other advanced features
such as adaptive defrost, self-diagnosis and automatic fault detec-
tion of blocked condenser. These features reduce service and
maintance costs and achieving optimal eciency of refrigeration
system.
Among many benets of having ADAP-KOOL® Refrigeration
Control System with full communication oer a well informed and
structured diagnostic tool for remote service. Almost all param-
eters are accessible via this remote communication. For example,
signals like “night setback” are sent to all controllers in the net-
work, which avoid extra installation wiring and site labour costs,
while ensuring system optimisation.
Variable speed drive of
Compressors and/or
Condenser Fans with AKD
will reduce the energy
consumption and improve
your system eciency
Suction unit
Condenser
Power pack
Danfoss provides solutions in three dierent levels to cover dier-
ent applications. These ensure you that in choosing Danfoss Pack
Controllers your refrigeration control system perfectly matched
to your application, without being over dimen-
sioned or unnecessarily complex.