Table Of Contents - Danfoss ADAP-KOOL AK-PC 781 Design Manual

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-XM 208C ................................................24
Extension module AK-OB 110 ....................................................26
Extension module AK-OB 101A..................................................27
Extension module EKA 163B / EKA 164B / EKA 166 ............28
Graphic display AK-MMI ...............................................................28
Power supply module AK-PS 075 / 150 / 250 ........................29
Communication module AK-CM 102 .......................................30
Preface to design ....................................................................................32
Functions ............................................................................................32
Connections ......................................................................................33
Limitations .........................................................................................33
Design of a compressor and condenser control .........................34
Procedure: ..........................................................................................34
Sketch ..................................................................................................34
Compressor and condenser functions ....................................34
Connections ......................................................................................35
Planning table ..................................................................................37
Length .................................................................................................38
Linking of modules .........................................................................38
Determine the connection points ............................................39
Connection diagram ......................................................................40
Supply voltage ................................................................................42
Ordering .....................................................................................................43
3. Mounting and wiring .............................................................45
Mounting ...................................................................................................46
Mounting of analog output module ........................................46
Mounting of extension module on the basic module .......47
Wiring ..........................................................................................................48
4. Configuration and operation ................................................51
Configuration ...........................................................................................52
Connect PC ........................................................................................52
Authorization ....................................................................................54
Unlock the configuration of the controllers ..........................55
System setup ....................................................................................56
Set plant type ...................................................................................57
Set control of compressors ..........................................................58
Set oil management .......................................................................61
Setup control of condenser fans ...............................................63
Setup control of high pressure ...................................................65
Setup control of receiver pressure ............................................66
Setup control of heat recovery..................................................67
Setup Display ....................................................................................70
Setup Functions for General purpose ......................................71
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Contents
Capacity controller RS8GG602 © Danfoss 2015-03
Separate thermostats .............................................................72
Separate pressostats ..............................................................72
Separate voltage signals .......................................................73
Separate alarm inputs ............................................................73
Separate PI functions .............................................................74
Configuration of inputs and outputs .......................................75
Set alarm priorities..........................................................................77
Lock configuration ..........................................................................79
Check configuration .......................................................................80
Check of connections ............................................................................82
Check of settings.....................................................................................84
Schedule function ..................................................................................86
Installation in network ..........................................................................87
First start of control ................................................................................88
Start the control ...............................................................................89
Manual capacity control ...............................................................90
5. Regulating functions .............................................................91
Suction group ..........................................................................................92
Controlling sensor selection .......................................................92
Reference ...........................................................................................93
Capacity control of compressors ...............................................94
Capacity distribution methods ...........................................96
Power pack types - compressor combinations ............97
Compressor timers ................................................................101
The capacity from the digital scroll compressor ........101
Load shedding ........................................................................102
Cascade systems - coordination and injection ..........103
Injection ON ............................................................................105
Liquid injection in suction line .........................................106
Safety functions .............................................................................106
Oil management............................................................................108
Condenser ...............................................................................................110
Capacity control of condenser .................................................110
Reference for condensing pressure ........................................110
Capacity distribution ...................................................................112
Step regulation ......................................................................................112
Speed regulation ..................................................................................112
Condenser couplings ...................................................................113
Safety functions for condenser ................................................113
EC motor ...........................................................................................113
CO 2 transcritical system and heat recovery ........................114
Circuit for heat recovery or hot tap water ....................115
Circuit for recovery for heating .........................................116
Circuits for control of CO2 gas pressure ........................119
Receiver control .....................................................................121
Parallel compression ............................................................122
General monitoring functions .........................................................124
Miscellaneous ........................................................................................126
Appendix A - Compressor combinations and coupling pat-
terns ...........................................................................................................130
Appendix B - Alarm texts ...................................................................136
Appendix C - Recommended connection - AK-PC 781 ...........138
AK-PC 781