AAON MODGAS-X, Техническое руководство

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MODGAS-X Technical Guide
OVERVIEW ....................................................................................................................... 5
General Information ................................................................................................................................................ 5
Dimensions ............................................................................................................................................................. 6
WIRING ............................................................................................................................ 7
Important Wiring Considerations ............................................................................................................................. 7
Single Modulating Valve No Staging - Stand-Alone Wiring ..................................................................................... 8
Single Modulating Valve No Staging - Communicating Wiring ............................................................................... 9
Single Modulating Valve and up to 14 Stages of Fixed Heat Stand-Alone ........................................................... 10
Two Modulating Valves and Up To 13 Stages of Fixed Heat Stand-Alone ............................................................ 12
Two Modulating Staged Valves - Stand-Alone Wiring ........................................................................................... 14
Two Modulating Staged Valves - Communicating Wiring...................................................................................... 15
INPUTS AND OUTPUTS ................................................................................................ 16
Inputs and Outputs ................................................................................................................................................ 16
SEQUENCE OF OPERATION ......................................................................................... 18
Operating Modes .................................................................................................................................................. 18
LCD SCREENS ............................................................................................................... 20
Navigation Keys .................................................................................................................................................... 20
Main Screens Map ................................................................................................................................................ 21
MODGAS-X Screens ............................................................................................................................................ 22
Status and Alarms Screens ................................................................................................................................... 23
Setpoint and Force Screens ................................................................................................................................. 24
Protected and Diagnostic Screens ........................................................................................................................ 25
Configuration Screens .......................................................................................................................................... 26
TROUBLESHOOTING .................................................................................................... 28
LED Diagnostics ................................................................................................................................................... 28
Alarms ................................................................................................................................................................... 30
SAT Sensor Testing ............................................................................................................................................... 31
APPENDIX A: SAT SENSOR .......................................................................................... 33
Installation ............................................................................................................................................................. 33
SAT Sensor Wiring Guide and Jumper Settings ................................................................................................... 34
APPENDIX B: MODGAS II REPLACEMENT .................................................................. 35
MODGAS-X Replacement of MODGAS II ............................................................................................................ 35
APPENDIX C: MAXITROL
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VALVES.............................................................................. 36
MAXITROL
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Stepper Valve Types ........................................................................................................................ 36
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