Set Plant Type - Danfoss AK-CC 750A User Manual

Configuration - continued

Set plant type

1. Go to Configuration menu
2. Select plant type
Press the line Select plant type.
3. Set plant type
4. Other settings
After the selection of application we
will go through the other setup displays
to check whether changes will have to
be made on some of the predefined
settings.
In our example we have to select a
refrigerant, (which is done on the
screen shown above) and we must
add external start/stop settings (which
is done in the subsequent "Common
functions" screen).
• Check the settings opposite the
individual functions
AK-CC 750A
When the installation type is to be
configured, it can be done in two
ways:
Either one of these two
In the example, we have decided
to use the second method. Here we
select:
• 3 evaporators
• AKV valve
• Refrigerant = R134a
• Defrost
• Defrost = electric
RS8HP102 © Danfoss 2018-09
3-
Select pre-configured application
Group 1
Or group 2
This setting give a choice between a number of prede-
fined combinations, which at the same time determine
the connection points.
At the end of the manual there is an overview of the op-
tions and connection points.
After configuration of this function, the controller will
shut down and restart. After the restart, a large number
of settings will have been made. These include the con-
nection points. Continue with the settings and check the
values.
If you change some of the settings, the new values will
come into force.
Number of evaporators
Select the number of evaporators that you want the
controller to regulate.
Valve type
Select the relevant type of valve here.
AKV valve
LLSV, solenoid valve (at thermostatic expansion valve).'
STEP (ETS / CCM / CCMT valve)
AO (analog voltage)
Scaling factor for step valve and AO
The valve capacity can be minimized here.
LLSV, Solenoid valve (at stepper valve)
LLSV delay off
Delay time after stepper begins to close until solenoid
valve closes.
Refrigerant
Here you can select from a range of pre-defined refriger-
ants. If you cannot find the refrigerant you want in the
list, select "User-defined". You can then set 3 constants
which represent the refrigerant. You can obtain these 3
constants from Danfoss.
Defrost control
Select whether you want the evaporators to regulate
with defrost.
Defrost type
You can select either natural defrost or electrical defrost,
hotgas defrost or warm brine defrost.
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