Danfoss AK2-SC 255 User Manual

26 AK2-SC 255 Reference Manual RS.8D.M1.22
dewpoint sensors will be used.
Average: The average of a number of dewpoint
sensors will be used.
Dewpoint 1: A single dewpoint sensor will be used for
control.
[others]: Other dewpoint sensors, if they exist, will be
listed also.
Humidity sensor to use: [If Calc Dewpoint has been selected](List box:) How
dewpoint will be determined if a humidity sensor is
used.
Min Humidity: The lowest-reading of a number of
humidity sensors will be used.
Max Humidity: The highest-reading of a number of
humidity sensors will be used.
Average: The average of a number of humidity
sensors will be used.
Inside RH 1: A single humidity sensor will be used
for control.
[others]: Other humidity sensors, if they exist, will be
listed also.
Auto defrost schedules (List box: Disabled, Enabled)
Enabling this option will cause the controller to suggest
a defrost schedule based on the following two addi-
tional questions.
Maximum concurrent electric defrosts
[Appears only if Auto defrost schedules is enabled]
(0 to 20) The number of electric defrosts that can be
underway concurrently.
Include dripdown time [Appears only if Auto defrost schedules is enabled]
(List box: Yes, No) Answering “Yes” will cause a drip
down period to follow defrost before refrigeration is
allowed. The length of the drip down period will be that
specified by the user when defrost schedules are auto-
configured.
Type (List box:) [for each individual evaporator] the type of
evaporator control.
AK2-SC 255/SUBC: A subcooler controlled as an
SC 255 circuit.
AK2-SC 255: The circuit is controlled by the SC
255’s algorithms.
AKC 16x: Control is at the fixture by AKC 161 or
AKC 164 Smart Case Controllers.
EKC: Control is at the fixture by EKC 201 control-
lers.
Deg Master: Control is at the fixture by Hill/PHOE-
NIX Degree Master controllers.
DCU: Control is at the fixture by DCU case control-
lers.
Case lights button In the lower left corner of the screen body is a button, CASE LIGHTS. Selecting this
button and pressing ENTER will open the configuration screen for a case lights

Danfoss AK2-SC 255 Specifications

General

Brand	Danfoss
Model	AK2-SC 255
Category	Controller
Language	English