Installation guide

Warning
Please Note
The specifications of the product detailed on this
Set-Up Guide may change without notice. RDM
Ltd. shall not be liable for errors or for incidental
or consequential damages, directly and indirectly,
in connection with the furnishing, performance or
misuse of this product or document.
Ensure that all power is
switched off before
installing or maintaining
this product
Revision 2.7 Page 3 of 83
Mercury Plant Controller Installation Guide
Section Stages .......................................................................................................................................................... 57
Alarm Relay ............................................................................................................................................................... 57
Stage Sizes ................................................................................................................................................................ 57
Operation (Fuzzy) ..................................................................................................................................................... 58
Operation (Staged) ................................................................................................................................................... 58
Other operational features ....................................................................................................................................... 59
Floating Head Pressure .......................................................................................................................................... 59
Drop Leg .................................................................................................................................................................. 59
Night Set-back ......................................................................................................................................................... 59
Day Set-back ........................................................................................................................................................... 59
Invert Relays ........................................................................................................................................................... 60
Sticky Fans .............................................................................................................................................................. 60
USB Operation ........................................................................................................................................................ 60
Viewing ...................................................................................................................................................................... 61
Inputs and Outputs ................................................................................................................................................... 61
Input/Output Tables .................................................................................................................................................. 61
Input/Output table for Pack Controller (Type 1) ...................................................................................................... 61
Input/Output table for Dual Pack Controller (Type 2) .............................................................................................. 62
Input/Output table for Pack/Condenser Controller (Type 3) ................................................................................... 63
Input/Output table for Dual Condenser Controller (Type 4) .................................................................................... 65
Input/Output table for Condenser Controller (Type 5)............................................................................................. 67
Input/Output table for Pack Controller (Type 6) ...................................................................................................... 68
Input/Output table for Dual Pack Controller (Type 7) .............................................................................................. 69
Input/Output table for Pack/Condenser Controller (Type 8) ................................................................................... 70
Input/Output table for Dual Condenser Controller (Type 9) .................................................................................... 72
Input/Output table for Condenser Controller (Type 10) .......................................................................................... 74
Quickview .................................................................................................................................................................. 75
Override ..................................................................................................................................................................... 75
Info Button ................................................................................................................................................................. 75
Standby Mode ........................................................................................................................................................... 75
Probe Offsets ............................................................................................................................................................ 76
Display Messages ..................................................................................................................................................... 76
Network Alarms ........................................................................................................................................................ 76
Specification.............................................................................................................................................................. 77
Power requirements: ............................................................................................................................................... 77
General .................................................................................................................................................................... 77
Inputs ....................................................................................................................................................................... 77
Relay Ratings .......................................................................................................................................................... 77
Installation: ................................................................................................................................................................ 78
Mounting on to a DIN rail ........................................................................................................................................ 78
Clearances: ............................................................................................................................................................. 78
Cleaning: ................................................................................................................................................................. 78
APPENDIX 1 TYPICAL TRANSDUCER CONNECTION .......................................................................................... 79
APPENDIX 2 – INTERNAL ANALOGUE MODEM INSTALLATION ........................................................................ 80
APPENDIX 3 – SUPPLY & STATUS INPUT WIRING............................................................................................... 81
APPENDIX 4 – SUPPLY & STATUS INPUT WIRING............................................................................................... 82
REVISION HISTORY .................................................................................................................................................. 83