Danfoss ADAP-KOOL AK-PC 783, Design Manual, Page: 2 / 128

2 Capacity controller RS8GN202 © Danfoss 11-2013 AK-PC 783
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-XM 208C ................................................24
Extension module AK-OB 110 ....................................................26
Extension module AK-OB 101A..................................................27
Extension module EKA 163B / EKA 164B ...............................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 suction group MT ................................................58
Set control of suction group LT ..................................................61
Set control of cascade heat exchanger ..................................64
Set oil management .......................................................................65
Setup control of condenser fans ...............................................67
Setup control of pump function ...............................................69
Setup control of heat ...................................................................69
recovery ..............................................................................................69
Setup Display ....................................................................................70
Setup Functions for General purpose ......................................71
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
Cascade control .....................................................................102
Load shedding ........................................................................103
Injection ON ............................................................................103
Liquid injection in suction line .........................................104
Safety functions .............................................................................104
Oil management............................................................................106
Pumpe styring ................................................................................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
General monitoring functions .........................................................114
Miscellaneous ........................................................................................116
Appendix A – Compressor combinations and coupling pat-
terns ...........................................................................................................120
Appendix B - Alarm texts ...................................................................126