Danfoss AK-CC55 Multi Coil User Manual

Introduction
Application
Complete refrigeration appliance control with great exibility to adapt to refrigeration appliances and cold storage
rooms.
Advantages:
• Universal controller for control of up to 3 AKV valves in same refrigeration section
• Quick set-up with predened settings
• Easy conguration and service using a mobile app with Bluetooth
• Energy optimization of the whole refrigeration appliance
• Adaptive Minimum Stable Superheat (MSS) control is performed with lowest possible superheat
• Allows the suction pressure to be raised several degrees
• Adaptive Liquid Control (ALC) can be performed with superheat down to 0 degrees on transcritical CO
2
systems
with liquid ejectors
Principle
The temperature in the appliance is registered by one to three S4 air temperature sensors which can be located in
the air ow of the evaporator. A setting for display read-out determines, if thermostat A temperature, the average S4
temperature or the highest S4 temperature is read out in the display.
If two displays are connected, it can be selected to read-out thermostat A temperature in display 1 and thermostat B
temperature in display 2.
The temperature of the evaporator is registered with one or two S5 sensors which can be used as a defrosting
sensor.
In addition to the outputs of the electronic AKV injection valves, the controller has relay outputs which are dened
by the application setting.
Figure 1: AK-CC55 with evaporator, AKV valve and sensor positions
S4/S4B/S4C
P
AKV
S2/S2B/S2C
S5/S5B
Danfoss 84B3293
Hint: On cold rooms the S4 sensor can be placed at the air inlet of the evaporator.
© Danfoss | Climate Solutions | 2022.08 BC365022028193en-000201 | 5
AK-CC55 Multi Coil

Danfoss AK-CC55 Multi Coil Specifications

General

Brand	Danfoss
Model	AK-CC55 Multi Coil
Category	Controller
Language	English