Orion System PREHEAT-X User Manual
Page 3
PREHEAT-X Technical Guide
TABLE OF CONTENTS
3
GENERAL INFORMATION ................................................................................................................ 4
Overview .................................................................................................................................................................. 4
Features ................................................................................................................................................................... 4
INSTALLATION & WIRING ............................................................................................................... 5
Important Wiring Considerations .............................................................................................................................. 5
Input Wiring .............................................................................................................................................................. 6
Output Wiring ........................................................................................................................................................... 7
INPUTS/OUTPUTS ........................................................................................................................... 8
OPERATION MODES ........................................................................................................................ 9
Stand-Alone Mode ................................................................................................................................................... 9
Communicating Mode .............................................................................................................................................. 9
LCD DISPLAY SCREENS ................................................................................................................ 12
TROUBLESHOOTING ..................................................................................................................... 21
LED Diagnostics .................................................................................................................................................... 21
Troubleshooting Conditions & Alarms .......................................................................................................................... 21
Temperature Sensors ................................................................................................................................................... 22
APPENDIX A - Temperature Sensors ............................................................................................ 23
Leaving Air Temperature Sensor Installation ......................................................................................................... 23
Leaving Air Temperature Sensor Wiring Chart ....................................................................................................... 24
APPENDIX B - PREHEAT-X BACnet ............................................................................................... 25
PREHEAT-X BACnet MS/TP Connection .............................................................................................................. 25
PREHEAT-X BACnet Points................................................................................................................................... 26