Orion System MHGRV-X User Manual
Page 2
TABLE OF CONTENTS
MHGRV-X Field Technical Guide
2
WattMaster Controls Inc.
8500 NW River Park Drive · Parkville, MO 64152
Toll Free Phone: 866-918-1100
PH: (816) 505-1100 · FAX: (816) 505-1101
E-mail: [email protected]
Visit our web site at www.orioncontrols.com
www.aaon.com
WattMaster Form: AA-MHGRVX-FIELD-TGD-01H
Copyright April 2015 WattMaster Controls, Inc.
AAON
®
Manual Part No.: V16950
AAON
®
is a registered trademark of AAON, Inc., Tulsa, OK.
Neither WattMaster Controls, Inc. nor AAON
®
assumes any
responsibility for errors or omissions in this document.
This document is subject to change without notice.
CONTROLLER OVERVIEW ............................................................................................................... 3
Features ................................................................................................................................................................... 3
INSTALLATION & WIRING ............................................................................................................... 4
Important Wiring Considerations .............................................................................................................................. 4
MHGRV-X Controller to AAON Unit Controller Wiring.............................................................................................. 5
MHGRV-X Stand Alone Wiring ................................................................................................................................. 6
INPUTS AND OUTPUTS .................................................................................................................. 7
OPERATION OVERVIEW .................................................................................................................. 8
Initialization .............................................................................................................................................................. 8
Modulating Hot Gas Valves ...................................................................................................................................... 8
Modes of Operation ................................................................................................................................................. 8
Additional Features .................................................................................................................................................. 8
LCD DISPLAY SCREENS .................................................................................................................. 9
TROUBLESHOOTING ..................................................................................................................... 13
Using LEDs to Verify Operation ............................................................................................................................. 13
Temperature Sensor Testing ........................................................................................................................................ 14
APPENDIX A - Supply Air Temperature Sensor Guide ................................................................. 17
Supply Air Temperature Sensor Installation ........................................................................................................... 17
Supply Air Temperature Sensor Wiring Chart and Jumper Settings ...................................................................... 18
APPENDIX B .................................................................................................................................. 19
MHGRV-X Replacement of MHGRV II ................................................................................................................... 19
APPENDIX C .................................................................................................................................. 20
Reheat Expansion Module ..................................................................................................................................... 20
PART NUMBER CROSS REFERENCE TABLE
PART DESCRIPTION
ORION
AAON
TULSA
MHGRV-X Controller
OE377-26-00059
V12100
Reheat Expansion Module
OE377-01-00059
V42450
MODGAS-X Controller
OE377-26-00058
V12090
Supply Air Temperature Sensor
OE231
P87140
EBC E-BUS Cables - Varying Lengths
EBC-XXX-F
N/A