Danfoss AK-CC55 Compact - Introduction

Introduction
Application
Refrigeration appliance control with great exibility to adapt to refrigeration appliances and cold storage rooms.
Advantages:
• Control of Thermostatic Expansion Valve (TEV) and Electronic Expansion valve(EEV) applications
• Quick set-up with predened settings
• Easy conguration and service using a mobile app with Bluetooth
• 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 or two temperature sensors which are located in the air ow
before the evaporator (S3) or after the evaporator (S4) respectively. A setting for thermostat, alarm thermostat and
display reading determines the inuence the two sensor values should have for each individual function.
The temperature of the evaporator is registered with the S5 sensor which can be used as a defrosting sensor.
In addition to the output of the electronic AKV injection valve, the controller has relay outputs which are dened by
the application setting
Figure 1: AK-CC55 with evaporator, AKV valve and sensor positions
Danfoss 84B3281
S5
S3
S4
S2
P
AKV
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AK-CC55 Compact