Danfoss AK2-SC 255 User Manual

4 AK2-SC 255 Reference Manual RS.8D.M1.22
Table of Contents
PART ONE Configuration
1.1 Initial Configuration ........................................................................................................11 - 12
Introduction ..................................................................................................................................... 11
Battery ..................................................................................................................................... 11
Authorization codes .............................................................................................................................. 11 - 12
Using Menus ..................................................................................................................................... 12
Selection of units and languages ................................................................................................................. 12
1.2 Configuring Refrigeration............................................................................................. 13 - 63
Starting with a partially configured AK2-SC 255 ........................................................................................ 13
Starting with a completely un-configured AK2-SC 255 .............................................................................. 14
Navigation and making changes.................................................................................................................. 14
Entering numerals ..................................................................................................................................... 14
Entering labels ..................................................................................................................................... 14
Constrained fields ..............................................................................................................................14 - 15
Configuring Rack Info..........................................................................................................................15 - 16
Adding a rack ..................................................................................................................................... 16
Configuring Suction Info ......................................................................................................................16 - 19
Configuring two-stage systems ...................................................................................................... 19 - 20
Configuring compressors......................................................................................................................20 - 22
Compressor oil and safety information...........................................................................................22 - 23
Neutral Zone control ............................................................................................................................. 23
Compressor capacity staging patterns ...........................................................................................24 - 25
Configuring Evaporators ......................................................................................................................25 - 31
Case lights button .................................................................................................................................. 27
Configuring AK2-SC 255 refrigeration circuits..................................................................................... 28
Configuring defrost 32 - 33
Configuring evaporators ....................................................................................................................... 33 - 34
Configuring condensers ........................................................................................................................ 34 - 46
Aircooled condensers..................................................................................................................... 35 - 42
Split condenser control .............................................................................................................39 - 40
Reaction zone and time ................................................................................................................... 40
Enviroguard systems ......................................................................................................................41 - 42
Evaporative condensers .................................................................................................................42 - 47
Pump, louver, and sump schedules........................................................................................... 44 - 45
Inverter settings; freeze protection; dump valve......................................................................45 - 46
Dump schedules....................................................................................................................... 46 - 47
Receiver configuration ................................................................................................................................ 47
Heat reclaim configuration ................................................................................................................... 47 - 49
Refrigeration alarms configuration .......................................................................................................49 - 50
Board & Points configuration...................................................................................................................... 50
Navigation ..................................................................................................................................... 51
Board & Points, relay outputs (digital outputs) ..............................................................................51 - 52
Board & Points, sensor inputs (analog inputs) ............................................................................... 52 - 54
Board & Points, on-off inputs (digital inputs)................................................................................. 54 - 55

Danfoss AK2-SC 255 Specifications

General

Brand	Danfoss
Model	AK2-SC 255
Category	Controller
Language	English