Danfoss AK-CH 650 User Manual

2 Capacity controller RS8ER302 © Danfoss 2016-02 AK-CH 650
Contents
1. Introduction .............................................................................3
Application .................................................................................................. 3
Principles .............................................................................................. 4
2. Design of a controller ..............................................................7
Module survey ........................................................................................... 8
Common data for modules .................................................................10
Controller ...........................................................................................12
Extension module AK-XM 101A ................................................. 14
Extension module AK-XM 102A / AK-XM 102B .....................16
Extension module AK-XM 103A ................................................. 18
Extension module AK-XM 204A / AK-XM 204B .....................20
Extension module AK-XM 205A / AK-XM 205B .....................22
Extension module AK-OB 110 ....................................................24
Extension module AK-OB 101A..................................................25
Extension module EKA 163B / EKA 164B ................................ 26
Power supply module AK-PS 075 / 150 ...................................27
Preface to design ....................................................................................28
Functions ............................................................................................28
Connections ...................................................................................... 29
Limitations ......................................................................................... 29
Design of a compressor and condenser control .........................30
Procedure: ..........................................................................................30
Sketch .................................................................................................. 30
Compressor and condenser functions ....................................30
Connections ...................................................................................... 31
Planning table ..................................................................................33
Length ................................................................................................. 34
Linking of modules .........................................................................34
Determine the connection points ............................................35
Connection diagram ...................................................................... 36
Supply voltage .................................................................................37
Ordering ..................................................................................................... 38
3. Mounting and wiring .............................................................39
Mounting ................................................................................................... 40
Mounting of analog output module ........................................40
Mounting of extension module on the basic module .......41
Wiring ..........................................................................................................42
4. Conguration and operation ................................................45
Conguration ...........................................................................................47
Connect PC ........................................................................................ 47
Authorization ....................................................................................48
System setup ....................................................................................50
Set plant type ...................................................................................51
Set control of compressors .......................................................... 52
Setup control of condenser ......................................................... 55
Setup Display ....................................................................................57
Setup defrost ....................................................................................58
Setup general alarm inputs ......................................................... 59
Setup separate thermostat functions ......................................60
Setup separate voltage functions ............................................. 61
Conguration of inputs and outputs ....................................... 62
Set alarm priorities..........................................................................64
Lock conguration ..........................................................................66
Check conguration .......................................................................67
Check of connections ............................................................................69
Check of settings.....................................................................................71
Schedule function ..................................................................................73
Installation in network .......................................................................... 74
First start of control ................................................................................ 75
Check alarms .....................................................................................75
Start the control ...............................................................................76
Manual capacity control ............................................................... 77
Manual defrost .........................................................................................78
5. Regulating functions .............................................................79
Suction group ..........................................................................................80
Capacity control of compressors ............................................... 80
Reference for compressor control .....................................81
Capacity distribution methods ...........................................82
Power pack types – compressor combinations ............ 82
Load shedding .......................................................................... 87
Liquid injection in suction line ........................................... 88
Heat exchanger injection .....................................................88
Defrost .................................................................................................89
Safety functions ............................................................................... 90
Pump control .................................................................................... 92
Condenser .................................................................................................93
Capacity control of condenser ...................................................93
Reference for condensing pressure .......................................... 94
Capacity distribution .....................................................................95
Step regulation ........................................................................................ 95
Speed regulation ....................................................................................95
Condenser couplings .....................................................................96
Safety functions for condenser ..................................................96
General monitoring functions ...........................................................97
Miscellaneous ..........................................................................................98
Appendix A – Compressor combinations and coupling pat-
terns ...........................................................................................................101
Appendix B - Alarm texts ...................................................................108
Appendix C - ..........................................................................................110
Recommended connection ..............................................................110

Danfoss AK-CH 650 Specifications

General

Brand	Danfoss
Model	AK-CH 650
Category	Controller
Language	English