Design Of A Evaporator Control; Procedure; Sketch; Evaporator And Refrigerator Appliance Functions - Danfoss AK-CC 750A User Manual

Design of a evaporator control

Procedure:

1. Make a sketch of the system in question
2. Check that the controller's functions cover the required
application
3. Consider the connections to be made
4. Use the planning table. / Note down the number of connections
./ add up
5. Are there enough connections on the controller module? – If
not, can they be obtained by changing an ON/OFF input signal
from voltage signal to contact signal, or will an extension
module be required?
6. Decide which extension modules are to be used
7. Check that the limitations are observed
8. Calculate the total length of modules
9. The modules are linked together
10. The connection sites are established
11. Draw a connection diagram or a key diagram
12. Size of supply voltage/transformer
1

Sketch

Make a sketch of the system in question.
32 RS8HP102 © Danfoss 2018-09
2Evaporator and refrigerator appliance
functions
Application
Control of cold room or freezing room
Control of refrigeration or freezing appliances
Regulation of evaporators
Thermostat function
Common thermostat function for all sections
Thermostat function for each section
On/off thermostat with AKV / ETS or solenoid valve
Modulating thermostat with AKV / ETS valve
Change between two thermostat references (thermostat band)
Day/night switch
Displacement of reference via analog input signal
Thermostat sensor before or after evaporator
Thermostat sensor both before and after the evaporator (weighted
thermostat)
Alarm thermostat (weighted)
Common functions
Fan control (pulsation or EC motor)
Rail heat control (pulsation)
Compressor control. Relay active when refrigeration is demanded
Appliance cleaning function
Appliance shut down
Door contact function
Light function
Night blind
Forced closing
Alarm output
Start / stop of regulation
Follow these 12
steps
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750A
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AK-CC 750A