Table Of Contents - AAON MHGRV-X Field Technical Manual

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

MHGRV-X Field Technical Guide