AAON MHGRV-X User Manual

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MHGRV-X Field Technical Guide
TABLE OF CONTENTS
OVERVIEW ....................................................................................................................... 5
MHGRV-X General Information............................................................................................................................... 5
WIRING ............................................................................................................................ 6
Installation and Wiring ............................................................................................................................................. 6
MHGRV-X to AAON unit controller Wiring............................................................................................................... 7
MHGRV-X Stand-Alone Wiring ............................................................................................................................... 8
INPUTS AND OUTPUTS .................................................................................................. 9
Inputs and Outputs .................................................................................................................................................. 9
OPERATION MODES ..................................................................................................... 10
Operation Modes .................................................................................................................................................. 10
LCD SCREENS ............................................................................................................... 12
Navigation Keys .................................................................................................................................................... 12
Main Screens Map and Main MHG REHEAT Screens ......................................................................................... 13
Status and Alarm Screens .................................................................................................................................... 14
Setpoint and Force Valves Screens ...................................................................................................................... 15
TROUBLESHOOTING .................................................................................................... 16
LED Diagnostics ................................................................................................................................................... 16
Alarms ................................................................................................................................................................... 17
Other Checks ........................................................................................................................................................ 18
APPENDIX A: SAT SENSOR .......................................................................................... 20
Supply Air Temperature Sensor Installation .......................................................................................................... 20
SAT Sensor Wiring Guide and Jumper Settings ................................................................................................... 21
APPENDIX B: MHGRV II................................................................................................ 22
MHGRV-X Replacement of MHGRV II .................................................................................................................. 22
APPENDIX C: REHEAT EXPANSION MODULE ............................................................ 23
Features and Dimensions ..................................................................................................................................... 23
Installation and Wiring ........................................................................................................................................... 24
Wiring .................................................................................................................................................................... 25
Operation Modes .................................................................................................................................................. 26
LED Diagnostics and Troubleshooting .................................................................................................................. 27
Troubleshooting .................................................................................................................................................... 28

AAON MHGRV-X Specifications

General

Brand	AAON
Model	MHGRV-X
Category	Controller
Language	English