Orion System MHGRV II User Manual
Page 2
Table Of Contents
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
AAON
®
Part No.: R12200
WattMaster Form: AA-MHGRVII-TGD-01E
Copyright September 2011 WattMaster Controls, Inc.
AAON
is a registered trademark of AAON, Inc., Tulsa, OK.
WattMaster Controls, Inc. assumes no responsibility for errors, or omissions.
This document is subject to change without notice.
Controller Overview ......................................................................................................................................... 3
General.........................................................................................................................................................................................3
Features .......................................................................................................................................................................................3
Operation......................................................................................................................................................................................3
Controller Inputs and Outputs ......................................................................................................................... 4
General.........................................................................................................................................................................................4
Analog Inputs ...............................................................................................................................................................................4
24 VAC Contact Closure Inputs: ...................................................................................................................................................4
Controller Installation & Wiring ...................................................................................................................... 4
Controller Mounting ......................................................................................................................................................................4
Relay Outputs...............................................................................................................................................................................4
Modulating HGR Valve Outputs ...................................................................................................................................................4
Important Wiring Considerations ..................................................................................................................................................4
DIP Switch Settings ......................................................................................................................................... 7
Supply Air Temperature ................................................................................................................................................................7
Supply Air Temperature Reset Limit ............................................................................................................................................7
Start-up & Commissioning............................................................................................................................... 8
General.........................................................................................................................................................................................8
Power Wiring ...............................................................................................................................................................................8
Power Up And Operation..............................................................................................................................................................8
Programming The Controller ........................................................................................................................................................8
Sequence Of Operation ................................................................................................................................... 9
Initialization...................................................................................................................................................................................9
Modulating Hot Gas Valves ..........................................................................................................................................................9
Modes Of Operation .....................................................................................................................................................................9
Additional Features ......................................................................................................................................................................9
Troubleshooting ............................................................................................................................................. 10
Using LED’s To Verify Operation ................................................................................................................................................10
Other Checks .............................................................................................................................................................................10