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RS.8D.M2.22

AK2-SC 255 Reference Manual

AK2-SC 255 Rack Controller

System Reference Manual

Содержание AK2-SC 255

Страница 1: ...RS 8D M2 22 AK2 SC 255 Reference Manual 1 AK2 SC 255 Rack Controller System Reference Manual...

Страница 2: ...RS 8D M2 22 AK2 SC 255 Reference Manual 2...

Страница 3: ...rlier controllers If you can you should check the Danfoss web site at www acr danfoss com and select the menu item for product literature The AK2 SC 255 literature will be in the Supermarket electroni...

Страница 4: ...sors 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 ConfiguringAK2 SC 255 refr...

Страница 5: ...66 69 RTU heating configuration 69 72 RTU dehumidification configuration 73 75 RTU air damper configuration 75 76 RTU alarms configuration 76 RTU board points configuration 76 AHU Configuration 76 80...

Страница 6: ...nfiguration 110 114 Beginning configuration 110 AK2 SC 255 lighting zone setup 110 113 Board points configuration lighting 113 Powerlink configuration 113 Cutler Hammer configuration 113 Powerlink and...

Страница 7: ...llaneous on off inputs 142 Specifying miscellaneous conversiosn 142 143 Miscellaneous calculations 143 144 Point creation 144 145 Custom strategy example 145 153 Creating the miscellaneous points Sens...

Страница 8: ...en Evaporator Alarms screen and Evaporator Service screen 175 2 5 Using the Communications Screens 176 187 Host Network screen 176 I O Network Status screen 176 177 List Points 177 179 List Nodes 179...

Страница 9: ...rence Manual 9 Overriding sensor values 199 Overrides using RO8S switches 199 Overrides using the Manager s Override box 199 200 Keyswitch Override for refrigeration high temperature alarms 200 2 9 Us...

Страница 10: ...RS 8D M2 22 AK2 SC 255 Reference Manual 10...

Страница 11: ...may be limited to such items as are necessary to check out the mechanical equipment or provide basic service The configuration can be changed or added to at any time later Battery The unit s backup ba...

Страница 12: ...apter 5 Using the System Using menus To select from any SC 255 menu first use the arrow keys to move the cursor to the item you want then press the ENTER key You can use the EXIT key to retrace your s...

Страница 13: ...may have been partially configured by the rack manufacturer In that case when you select Refrigeration from the Main Menu the SC 255 will display the Refrigeration Menu left It lists the rack or racks...

Страница 14: ...entries that you need to spell out The Rack label field contains a label one character in length The Oil type field is also a label field but it is 9 characters long allowing you to spell out a word...

Страница 15: ...the list box s cursor on the selection you want press ENTER to save your selection Some list boxes contain only two choices for example Yes and No in the Monitor phase loss field Some may contain many...

Страница 16: ...only one way to add a rack From the Main Menu select Configuration then Refrigeration and the Rack Configuration screen appears At the bottom left of the screen are the words Add Rack Move the cursor...

Страница 17: ...evealed The fields and their contents are as follows Suction I D 2 label fields the first is a list box A to Z the second is 9 characters not constrained This is the identifica tion you wish to assign...

Страница 18: ...t 50 0 to 100 0 The temperature that the adaptive control algorithm will seek to maintain in the fixture Does not appear when dynamic adaptive control is selected Range 0 0 to 100 0 The dead band arou...

Страница 19: ...itor desuperheat temp List box Yes No Close EEV valves during rack shutdown List box Yes No If suct above target by 0 to 999 9 Number of psig above target when AKV valves will be closed during rack sh...

Страница 20: ...down Control desuperheater List box Yes No Whether or not de superheater control is implemented on this rack Controlling sensor List box Desuper In AA Control is based on a sensor moni toring the liqu...