Evaporator Service - Danfoss AK2-SC 255 Reference Manual

Evaporator Service

AKC 16x Shutdown
(Smart Case Controllers)
Evaporator service
Case Cleaning (Smart
Case Controllers)
RS.8D.M1.22
Manual On:
Manual Off:
Manual On Time:
There are two fields which control the mode of the fixture's refrigeration valve:
Valve:
Manual Value:
The Smart Case Controller Shutdown screen allows one or more fixtures on a rack to
be shut down. The anti-sweat heaters, lights, and fans can be put in an override
status from the screen also.
The Case Cleaning screen for Smart Case Controllers offers a quick way to shut
down individual fixtures for cleaning. When the Case Cleaning status is changed
AK2-SC 255 Reference Manual
The function will remain on until the mode is changed
in this service screen, except in the case of defrost,
which if configured for termination on temperature
will terminate on either reaching the termination
temperature, or the maximum time, or until the mode
is changed in this service screen, whichever occurs
first.
If defrost is set to Manual On, the system will
remain in defrost until it reaches termination tem-
perature or until maximum defrost time is reached.
The defrost setting will then return to Auto.
The function will remain off until the mode is
changed in this service screen.
(Defrost Only) Defrost will remain on for the Maxi-
mum Time specified in this screen regardless of the
defrost temperature.
Associated with the defrost field is a field for Maxi-
mum Time, which is the maximum time a system can
remain in defrost, whether or not a selected termina-
tion temperature has been reached.
The valve mode, either Manual or Auto. If manual,
the valve will remain at the percentage specified on
the following line. To turn off refrigeration, select
Manual and enter 0% as the manual valve percent-
age.
For AKV electronic expansion valves, the percent-
age (0-100) of valve opening which will be held while
the valve is in Manual mode.
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