AAON Orion VCCX2 Quick start guide

VCCX2 Controller
Technical Guide
VCCX2 Controller Code: DT003800-001/SS1088 Version 1.02 and up
Service Tool SD Code: DT001240-001/SS1063 Version 1.11 and up
System Manager SD Code: DT002150-001/SS1068 Version 1.11 and up
System Manager Touch Screen (Limited Access): DT004254-001/SS7013

2VCCX2 Controller Technical Guide
All manuals are also available for download from
www.aaon.com/controlsmanuals.
www.aaon.com
VCCX2 CONTROLLER TECHNICAL GUIDE
REVISION AND DATE CHANGE
Rev. 01N, January 20, 2020 Liquid Line 1-4 Solenoid relay congurations changed to A1,A2,B1,B2 Comp Run
Status in relay table and in wiring illustrations
Rev. 01N, January 20, 2020 Added BI: 126 - Exhaust Fan / Return Fan Proof of Flow Alarm
Rev. 01N, February 13, 2020 Added 11 = OA Damper Calibration to BACnet AI:3
Rev. 01N, July 14, 2020 Miscellaneous minor edits
Rev. 01P, October 1, 2020 Added RSMZ module and BACnet parameters
Rev. 01P, October 1, 2020 Added Subcool Monitor Module and BACnet parameters
Rev. 01P, December 11, 2020 10-foot cable changed to 25-foot cable for E-BUS Outdoor Air and Humidity sensors
Rev. 01P, December 11, 2020 Revision to Sump Heater and Sump Drain Enable operation
Rev. 01P, December 11, 2020 Added BACnet AV:94 Sump Drain Override
Rev. 01P, January 21, 2021 Added SIG1 - Return Air Plenum Pressure Sensor and AOUT4 - Modulating
Exhaust Damper to VCC-X EM1 Wiring
Rev. Q, March 24, 2021 Updated RSMZ Trendlog tables, updated labels, miscellaneous minor edits
Rev. R, May 26, 2021 Updated BACnet points to latest VCCX2 software, updated Appendix A gures,
various cosmetic updates
Rev. S. November 24, 2021 Added information regarding Paragon Air Flow. Edited BACnet table. Corrected
errata. Updated formatting.
AAON, Inc.
2425 South Yukon Ave.
Tulsa, OK 74107-2728
www.aaon.com
Factory Technical Support Phone: [phone]
Controls Support Phone: [phone]
All rights reserved. © November 2021 AAON, Inc.
It is the intent of AAON to provide accurate and current product
information. However, in the interest of product improvement, AAON
reserves the right to change pricing, specications, and/or design of
its product without notice, obligation, or liability.
AAON P/N: G039840, Rev. S
AAON® is a registered trademark of AAON, Inc., Tulsa, OK. BACnet®
is a registered trademark of ASHRAE Inc., Atlanta, GA. BITZER®
is a registered trademark of BITZER Kühlmaschinenbau GmbH.
Sindelngen, Germany. Copeland Scroll™ is a registered trademark of
Emerson Electric Co., Saint Louis, MO. Danfoss VFD® is a registered
trademark of Danfoss Commercial Compressors, S.A., Tallahassee,
FL. EBTRON® is a registered trademark of Ebtron, Inc., Loris, SC.
GreenTrolTM is a registered trademark of GreenTrol Automation, Inc.
Loris, SC. Paragon MicroTransEQ Series Airow Monitoring Station is
a registered trademark of Paragon Controls, Inc., Santa Rosa, CA.
White-Rodgers® is a registered trademark of Emerson Electric Co.,
Saint Louis, MO.

3
VCCX2 Controller Technical Guide
TABLE OF CONTENTS
OVERVIEW ................................................................................................................................................. 9
Features.................................................................................................................................................................. 9
Applications........................................................................................................................................................... 10
Part Number Cross Reference...............................................................................................................................11
Parts and Descriptions.......................................................................................................................................... 12
VCCX2 Controller Components ............................................................................................................................ 19
DIMENSIONS ........................................................................................................................................... 20
VCCX2 Controller ................................................................................................................................................ 20
Refrigerant System Module ............................................................................................................................... 21
VCC-X EM1 Expansion Module............................................................................................................................ 22
12 Relay E-BUS Module ....................................................................................................................................... 23
WIRING ..................................................................................................................................................... 24
Important Wiring Considerations........................................................................................................................... 24
VCCX2 Controller Inputs....................................................................................................................................... 25
VCCX2 Controller Outputs.................................................................................................................................... 26
E-BUS Digital Room Sensor ................................................................................................................................. 27
Wall-Mounted E-BUS CO2 Sensor ........................................................................................................................ 28
Duct-Mounted E-BUS CO2 Sensor ....................................................................................................................... 29
Space Temperature Sensor .................................................................................................................................. 30
Supply Air Temperature Sensor ............................................................................................................................ 31
Return Air Temperature Sensor............................................................................................................................. 32
Building Pressure Sensor ..................................................................................................................................... 33
Remote Supply Air Temperature Reset................................................................................................................. 34
E-BUS Outdoor Air Temperature Sensor .............................................................................................................. 35
E-BUS Outdoor Air Temperature and Humidity Sensor ........................................................................................ 36
E-BUS Return Air Temperature and Humidity Sensor........................................................................................... 37
Duct Static Pressure Transducer .......................................................................................................................... 38
Supply Fan VFD or Bypass Damper Actuator....................................................................................................... 39
Economizer Damper Actuator or Waterside Economizer Actuator........................................................................ 40
Modulating Heating Device ................................................................................................................................... 41
Building Pressure Control Outputs........................................................................................................................ 42
VCC-X EM1 Expansion Module............................................................................................................................ 43
Entering Water Temperature Sensor..................................................................................................................... 44
VCC-X EM1 Expansion Module Inputs ................................................................................................................. 45
VCC-X EM1 Expansion Module Outputs .............................................................................................................. 46
Modulating Cooling Output ................................................................................................................................... 47
Return Air Bypass ................................................................................................................................................. 48
12 Relay E-BUS Expansion Module ..................................................................................................................... 49
EBTRON, GreenTrol, and Paragon Digital Transmitters....................................................................................... 50
RSMV Inputs......................................................................................................................................................... 51
RSMV Outputs ...................................................................................................................................................... 52

4VCCX2 Controller Technical Guide
RSMV-HP Inputs................................................................................................................................................... 53
RSMV-HP Outputs ................................................................................................................................................ 54
RSMD Inputs......................................................................................................................................................... 55
RSMD Outputs...................................................................................................................................................... 56
RSMZ Inputs ......................................................................................................................................................... 57
RSMZ Outputs ...................................................................................................................................................... 58
Subcool Monitor Module ....................................................................................................................................... 59
MHGRV-X ............................................................................................................................................................. 60
MODGAS-X .......................................................................................................................................................... 61
MODGAS-XWR2 .................................................................................................................................................. 62
PREHEAT-X and PREHEAT-X-EXT...................................................................................................................... 63
START-UP AND COMMISSIONING ....................................................................................................... 64
Powering Up and Conguration ............................................................................................................................ 64
INPUTS AND OUTPUTS ......................................................................................................................... 65
VCCX2 Controller and EM1 Module Input/Output Maps....................................................................................... 65
VCCX2 Controller Inputs....................................................................................................................................... 66
VCCX2 Controller Outputs.................................................................................................................................... 67
VCC-X EM1 Expansion Module............................................................................................................................ 68
12 Relay E-BUS Expansion Module ..................................................................................................................... 69
SEQUENCE OF OPERATIONS .............................................................................................................. 70
Supply Fan Operation and HVAC Source Conguration Options ......................................................................... 70
Occupied/Unoccupied Operation and HVAC Modes of Operation........................................................................ 71
Cooling Mode........................................................................................................................................................ 72
Economizer Operation .......................................................................................................................................... 73
Dehumidication Mode ......................................................................................................................................... 74
Reheat, Coil Suction, and Return Air Bypass Damper Control ............................................................................. 75
Heating Mode........................................................................................................................................................ 76
Ventilation Mode, Remote Contact Control, and Space Sensor Operation .......................................................... 77
Indoor Air Quality and Morning Mode Operations................................................................................................. 78
Single Zone Variable Air Volume........................................................................................................................... 79
Supply Air Temperature, Airow Monitoring, and Preheater Operation................................................................. 80
Low Ambient Operation, Heat Wheel, and Duct Static Pressure Control ............................................................ 81
Duct Static Setpoint Reset, Building Pressure Control ......................................................................................... 82
Exhaust Duct Static Pressure Control................................................................................................................... 83
Make-up Air, Dual Mode, and Space Temperature Control................................................................................... 84
Variable Air Volume with Supply Air Tempering and Air to Air Heat Pump ........................................................... 85
Heat Pump Standard Defrost, Adaptive Defrost, and Water Source Heat Pump.................................................. 86
Electronic Expansion Valve Operation, Head Pressure, and Evaporative Condenser, ........................................ 87
Waterside Economizer, Temperature Protection, and Outdoor Air Lockouts ........................................................ 88
System Broadcasts and Alarm Detection ............................................................................................................. 89
Sensor Failure Alarms........................................................................................................................................... 90
TABLE OF CONTENTS

5
VCCX2 Controller Technical Guide
Mechanical Failure and Failure Mode Alarms....................................................................................................... 91
Title 24 Economizer Alarms .................................................................................................................................. 92
VCCX2 Controller Trend Logs .............................................................................................................................. 93
RSMV/RSMD/RSMZ Trend Logs.......................................................................................................................... 94
RSMZ Trend Logs and Trend Log Enumerated Values ........................................................................................ 95
RSMZ Trend Logs................................................................................................................................................. 96
Trend Log Bit String Decoding .............................................................................................................................. 97
Trend Log Bit String Decoding .............................................................................................................................. 98
TROUBLESHOOTING ............................................................................................................................. 99
VCCX2 Controller and EM1 LED Diagnostics ...................................................................................................... 99
Temperature Sensor Testing ............................................................................................................................... 101
Duct Static Pressure and Building Pressure Sensor Testing .............................................................................. 102
APPENDIX A - SYSTEM CONFIGURATION ....................................................................................... 103
System Congurations........................................................................................................................................ 103
Stand-Alone System Layout ............................................................................................................................... 104
Networked System Single Loop Layout .............................................................................................................. 105
Networked System Multiple Loop Layout............................................................................................................ 106
APPENDIX B - VCCX2 LCD SCREENS............................................................................................... 107
Navigation Keys .................................................................................................................................................. 107
Main Screens Map .............................................................................................................................................. 108
Setting Screens................................................................................................................................................... 109
Status Screens.....................................................................................................................................................110
Alarm Screens .....................................................................................................................................................111
Output Override Screens .....................................................................................................................................112
Air Balance Screens ............................................................................................................................................113
APPENDIX C - VCCX2 BACNET...........................................................................................................114
VCCX2 BACnet Connection to MS/TP Network ..................................................................................................114
VCCX2 BACnet Parameters - Analog Inputs .......................................................................................................115
VCCX2 BACnet Parameters - Analog Values ..................................................................................................... 122
VCCX2 BACnet Parameters - Binary Inputs....................................................................................................... 127
VCCX2 BACnet Bitelds ..................................................................................................................................... 130
VCCX2 BACnet PICS ......................................................................................................................................... 133
TABLE OF CONTENTS

6VCCX2 Controller Technical Guide
FIGURES
FIGURES
Figure 1: VCCX2 Controller Components ..............................................................................................................19
Figure 2: VCCX2 Controller Dimensions.................................................................................................................20
Figure 3: Typical Refrigerant System Module Dimensions (RSMV Shown)............................................................21
Figure 4: VCC-X EM1 Expansion Module Dimensions ...........................................................................................22
Figure 5: 12 Relay E-BUS Module Dimensions ......................................................................................................23
Figure 6: VCCX2 Controller Input Wiring ................................................................................................................25
Figure 7: VCCX2 Controller Output Wiring .............................................................................................................26
Figure 8: E-BUS Digital Room Sensor Wiring.........................................................................................................27
Figure 9: Wall-Mounted E-BUS CO2 Sensor Wiring................................................................................................28
Figure 10: Duct-Mounted E-BUS CO2 Sensor Wiring ...............................................................................................29
Figure 11: Space Temperature Sensor Wiring and Slide Adjust ...............................................................................30
Figure 12: Supply Air Temperature Sensor Wiring ...................................................................................................31
Figure 13: Return Air Temperature Sensor Wiring ...................................................................................................32
Figure 14: Building Pressure Sensor Wiring .............................................................................................................33
Figure 15: Remote SAT Reset Signal Wiring ............................................................................................................34
Figure 16: Outdoor Air Temperature Sensor Wiring ..................................................................................................35
Figure 17: E-BUS Outdoor Air Temperature and Humidity Sensor Wiring ................................................................36
Figure 18: E-BUS Return Air Temperature and Humidity Sensor Wiring ..................................................................37
Figure 19: Static Pressure Transducer Wiring ..........................................................................................................38
Figure 20: Supply Fan VFD Wiring ...........................................................................................................................39
Figure 21: Economizer Damper Actuator or Waterside Economizer Actuator Wiring ...............................................40
Figure 22: Modulating Heating Device Wiring...........................................................................................................41
Figure 23: Building Pressure Control Output Wiring .................................................................................................42
Figure 24: Entering Water Temperature Sensor, Return Air Plenum Pressure and
Return/Exhaust Proof of Flow ..................................................................................................................43
Figure 25: Entering Water Temperature Sensor........................................................................................................44
Figure 26: VCC-X EM1 Exhaust Duct Static Pressure and Economizer Actuator Feedback Wiring ........................45
Figure 27: VCC-X EM1 Expansion Module Output Wiring........................................................................................46
Figure 28: Chilled Water Valve Actuator Wiring ........................................................................................................47
Figure 29: Return Air Bypass Wiring .........................................................................................................................48
Figure 30: 12 Relay E-BUS Expansion Module Wiring .............................................................................................49
Figure 31: EBTRON GTC116 or HTN104 Series, GreenTrol GA-200-N Series, and Paragon MicroTransEQ
Series Airow Measurement Digital Transmitter Wiring ...........................................................................50
Figure 32: RSMV Inputs Wiring.................................................................................................................................51
Figure 33: RSMV Outputs Wiring..............................................................................................................................52
Figure 34: RSMV-HP Inputs Wiring...........................................................................................................................53
Figure 35: RSMV-HP Outputs Wiring ........................................................................................................................54
Figure 36: RSMD Inputs Wiring ................................................................................................................................55
Figure 37: RSMD Outputs Wiring..............................................................................................................................56
Figure 38: RSMZ Inputs Wiring.................................................................................................................................57
Figure 39: RSMZ Outputs Wiring ..............................................................................................................................58
Figure 40: Subcool Monitor Wiring............................................................................................................................59

7
VCCX2 Controller Technical Guide
FIGURES
Figure 41: MHGRV-X to VCCX2 Controller Wiring ...................................................................................................60
Figure 42: MODGAS-X to VCCX2 Controller Wiring.................................................................................................61
Figure 43: MODGAS-XWR2 to VCCX2 Controller Wiring.........................................................................................62
Figure 44: PREHEAT-X to VCCX2 Module Wiring ...................................................................................................63
Figure 45: Operator Interfaces ..................................................................................................................................64
Figure 46: VCCX2 Controller LED Locations ..........................................................................................................100
Figure 47: VCC-X EM1 Expansion Module LED Locations ....................................................................................100
Figure 48: Typical Stand-Alone System Layout ......................................................................................................104
Figure 49: Typical Networked Single Loop System Layout.....................................................................................105
Figure 50: Typical Networked Multiple Loop System Layout ..................................................................................106
Figure 51: LCD Display and Navigation Keys .........................................................................................................107
Figure 52: VCCX2 BACnet Connection to MS/TP Network ....................................................................................114

8VCCX2 Controller Technical Guide
TABLES
TABLES
Table 1: Voltage and Environment Requirements.................................................................................................. 24
Table 2: VCCX2 Controller Inputs and Outputs .................................................................................................... 65
Table 3: VCC-X EM1 Inputs and Outputs ............................................................................................................. 65
Table 4: User-Congurable Relay Outputs ............................................................................................................ 69
Table 5: VCCX2 Controller Trend Logs.................................................................................................................. 93
Table 6: RSMZ Module Trend Logs ....................................................................................................................... 94
Table 7: RSMV/RSMD Module Trend Logs............................................................................................................ 94
Table 8: Trend Log Enumerated Values................................................................................................................. 95
Table 9: RSMZ Module Comp Status Trend Log ................................................................................................... 95
Table 10: RSMZ Module RSM Alarm Trend Log ...................................................................................................... 95
Table 11: RSMZ Module VFD Status Trend Log...................................................................................................... 96
Table 12: RSMZ Module VFD Alarm 1 Trend Log.................................................................................................... 96
Table 13: RSMZ Module VFD Alarm 2 Trend Log.................................................................................................... 96
Table 14: VCCX2 Trend Log Bit Strings................................................................................................................... 98
Table 15: 0-5V Temperature Sensor - Voltage and Resistance for Type III Sensors ............................................. 101
Table 16: Duct Static Pressure/Voltage for Duct Static Pressure Sensors ............................................................ 102
Table 17: Building Static Pressure/Voltage for Building Pressure Sensors............................................................ 102
Table 18: Navigation Key Functions....................................................................................................................... 107
Table 19: Editing Key Functions............................................................................................................................. 107
Table 20: Alarm Screens.........................................................................................................................................111

9
VCCX2 Controller Technical Guide
Features
The VCCX2 Controller is designed with eight analog inputs,
four analog outputs, eight binary inputs, and eight relay outputs
(seven congurable). It also has an on-board BACnet port for
connection to an MS/TP network. The VCCX2 contains a 2 x 8
LCD character display and four buttons that allow for status and
alarm display, force modes, and BACnet conguration.
The VCCX2 Controller can communicate with all of AAON’s
Refrigerant System Modules (RSM). In addition, the VCC-X
EM1 Expansion Module and 12 Relay E-BUS Expansion Module
provide additional inputs and outputs.
There are two E-BUS expansion connectors on the VCCX2 which
allow for the connection of the expansion modules listed above,
communicating sensors, and future E-BUS modules via modular
E-BUS cables. There are presently seven communicating sensors
available:
• E-BUS Digital Space Temperature Sensor with display
• E-BUS Digital Space Temperature and Humidity Sensor
with display
• E-BUS Space Temperature and Humidity Sensor
without display
• E-BUS Space CO2Sensor
• E-BUS Duct CO2Sensor
• E-BUS Horizontal or Vertical Outdoor Air Temperature
and Humidity Sensor
• E-BUS Return Air Temperature and Humidity Sensor
The VCCX2 Controller provides for the following applications:
constant air volume (CAV), variable air volume (VAV), single
zone VAV, make-up air (MUA), and space temperature control
of high percentage outdoor air.
Other features of the VCCX2 include:
• Controls up to eight digital compressors
• Controls up to four sets of tandem variable frequency
drive (VFD) compressors
• Controls up to 12 stages of heat
• Modulating cooling output for chilled water valve
control
• Modulating heating output (hot water valve, steam
valve, SCR electric heat control)
• Full integration with the AAON RSMs
• Full integration with the AAON MODGAS-X Module
• Full integration with the AAON MHGRV-X Module
• Full integration with the AAON PREHEAT-X Module
• Advanced dehumidication capabilities
• Air-to-air heat pump and water source heat pump
applications
• Airow monitoring of outdoor air, supply air, return
air, and exhaust air streams with approved EBTRON,
GreenTrol, or Paragon Airflow MicroTransEQ
Monitoring Stations
• Airow control of outdoor air damper
• Single zone VAV control with optional CAV heating
• Primary/secondary heating control
• Remote forced cooling, heating, and dehumidication
control
• Remote supply air temperature reset signal
• Adaptive supply air temperature reset
• Selectable mode enable sensor
• Fan proving interlock
• Dirty lter alarm
• Emergency shutdown input (smoke detector/restat or
other shutdown conditions)
• Drybulb/wetbulb/dewpoint control of economizer
operation
• Waterside economizer capability
• Building pressure control (direct or reverse acting)
• Exhaust duct static control of exhaust fan
• Remote forced occupied capability
• Congurable for AAON Return Air Bypass Applications
• Indoor air quality economizer reset
• Title 24 economizer certied
• Seven-day, two-events-per-day scheduling
• 14 holiday event scheduling
• Daylight Saving Time adjustment
• Trend logging capability
• Static pressure control for lter loading applications
• Heat wheel - on/o control
• Head pressure control
• On-board BACnet port for connection to a MS/TP
network
BACnet is a registered trademark of ASHRAE. ASHRAE does not
endorse, approve or test products for compliance with ASHRAE
standards. Compliance of listed products to the requirements of
ASHRAE Standard 135 is the responsibility of BACnet International.
BTL is a registered trademark of BACnet International.
OVERVIEW
Features

10 VCCX2 Controller Technical Guide
Variable Air Volume Unit
The VCCX2 Controller can control VAV units that are typically
designed for Occupied Cooling Mode only, where VAV boxes
equipped with reheat satisfy heating demands in individual
spaces. In this application, unit heat is typically used for Morning
Warm-Up. Morning Cool-Down is also available. The controller
can be congured to control the supply fan variable frequency
drive to maintain a Duct Static Pressure Setpoint.
The VCCX2 can also control VAV units that may require
Occupied Heating operation to “temper” the outdoor air if it is
too cold outside for the mixed air to maintain the Cooling Supply
Air Setpoint.
Constant Air Volume Unit
The VCCX2 Controller can be congured for CAV applications
that are typically space temperature or return air temperature
controlled.
The VCCX2 can also be used for restaurant kitchen or lab
applications that are 100% outdoor air part of the time and
recirculating air part of the time. A hood on binary input forces
the VCCX2 to switch to 100% outdoor air control based on
an exhaust hood switch activation. The VCCX2 requires
Space Temperature (and Humidity) Sensors to accomplish this
application.
Single Zone Variable Air Volume
This is a hybrid CAV/VAV application for a unit serving a single
space and using Space Temperature Setpoints to enable Heating
and Cooling Modes. Heating and Cooling are controlled to their
respective Supply Air Setpoints while the supply fan modulates
to maintain the Space Temperature Setpoints. Single zone VAV
applications can be congured for VAV Cooling and either VAV
or CAV Heating. Single zone VAV operation requires the use of
modulating heating or cooling sources.
Space Temperature Control of High
Percentage Outdoor Air Units
This application allows the unit to be congured to use the space
temperature to initiate Cooling and Heating Modes on units
that are high percentage outdoor air or 100% outdoor air units.
Before entering Vent Mode, the VCCX2 will rst determine
if the outdoor air temperature is above or below Outdoor Air
Cooling and Heating Setpoints. If so, the unit will leave stages
of Cooling or Heating on as necessary to achieve a neutral supply
air temperature – thus avoiding dumping very hot or cold air
into the space.
Make-Up Air Unit
The VCCX2 can be congured for 100% outdoor air control for
MUA units. All HVAC Modes are determined from the Outdoor
Temperature and Humidity Sensors. The outdoor air volume
should be at least 50% or higher to be congured for outdoor
air control.
AAON Return Air Bypass Control
This control scheme can only be used on CAV HVAC units that
are equipped with a return air bypass damper and that use Space
Temperature and Humidity Sensors as the controlling sensors.
AAON Return Air Bypass Control provides improved moisture
removal capabilities while utilizing internal space loads for
reheat by redirecting return air from the upstream side of the
DX Evaporator Coil to the downstream side of the coil during
dehumidication.
Zone Voting
The VCCX2 can be congured to be the unit controller in a
zone voting system where the individual zones vote to put the
unit into Occupied Cooling or Heating Mode. To be used in this
application, zone controllers must also be used in order to allow
communication between the zones and the VCCX2. Duct static
pressure control can be accomplished with a supply fan variable
frequency drive or a bypass damper.
OVERVIEW
Applications

11
VCCX2 Controller Technical Guide
PART DESCRIPTION ORION AAON
VCCX2 Controller OE338-26B-VCCX2 ASM01698
VCC-X EM1 Expansion Module OE336-23-VCCXEM1 ASM01691
Refrigerant System Module for VFD Compressors OE370-26-RSMV ASM01686
Refrigerant System Module VFD Compressors - Heat Pump OE370-26-RSMV-HP ASM01693
Refrigerant System Module for Digital Compressors OE370-26-RSMD ASM02201
Refrigerant System Module for VFD Compressors (RSMZ) N/A ASM02351
Subcool Monitor Module N/A ASM02350
12 Relay E-BUS Expansion Module OE358-23E-12R ASM01873
Building Static Pressure Transducer OE258-01 ASM01832
CommLink 5 Communications Interface OE361-13 ASM01874
Duct Static Pressure Transducer and Pickup Tube OE271 and OE290 ASM01640 and ASM02242
Duct Temperature Sensor - 6” or 12” OE230 / OE231 G051240 / G051250
E-BUS Cable Assembly E-BUS Power and Comm
1.5 ft., 3 ft., 10 ft., 25 ft., 50 ft., 75 ft., 100 ft., 150 ft., 250 ft.,
and 1000 ft. Spool
EBC-1.5F, EBC-3F, EBC-10F,
EBC-25F, EBC-50F, EBC-75F,
EBC-100F, EBC-150F, EBC-250F,
EBC-SPOOL
G029440 (1.5 ft..), G012870 (3 ft.),
G029460 (10 ft.), G045270 (25 ft.),
G029510 (50 ft.), G029530 (75 ft.),
G029450 (100 ft.), G029470 (150 ft.),
V36590 (250 ft.), G018870 (SPOOL)
E-BUS Adapter Hub MS000248 G033970
E-BUS Adapter Hub with 1.5 ft. EBC Cable HZ-EBC-248 ASM01635
E-BUS Adapter Board OE365-15-EBA ASM01878
E-BUS CO2 Space Sensor (wall or duct mounted) OE256-05 / OE256-07 ASM01829 / ASM01831
E-BUS Digital Room Sensor - LCD - Temp. or Temp and RH OE217-02 / OE217-03 ASM01819 / ASM01820
E-BUS Digital Room Sensor - No LCD - Temp and RH OE217-04 ASM02221
E-BUS Horizontal Outdoor Air Temperature and RH Sensor OE265-15 ASM01836
E-BUS Vertical Outdoor Air Temperature and RH Sensor OE265-16 ASM01838
E-BUS Return Air Temperature and RH Sensor OE265-17 ASM01840
E-BUS CO2 Return Air Sensor Emulator Board OE365-07-EBSE ASM01623
E-BUS CO2 Space Sensor Emulator Board OE365-06-EBSE ASM01622
E-BUS Outdoor Air Temp/RH Sensor Emulator Board OE365-05-EBSE ASM01697
E-BUS Return Air Temp/RH Sensor Emulator Board OE365-04-EBSE ASM01621
E-BUS Space Temp/RH Sensor Emulator Board OE365-03-EBSE ASM01696
GPC-XP Controller OE338-23-GPCXP ASM01868
IP Module Kit OE415-02 ASM01902
MHGRV-X Module / Reheat Expansion Module OE377-26-00059 / OE377-01-00059 ASM01670 / ASM01687
MiniLink Polling Device 5 OE364-23-OR ASM01626
MODGAS-X Module OE377-26-00058 ASM01668
MODGAS-XWR2 Module OE377-26-00060-1 ASM01695
Modular Service Tool SD - Operator Interface OE391-12 ASM01895
Modular System Manager SD - Operator Interface OE392-12 ASM01901
Outdoor Air Temperature Sensor OE250 G042230
PREHEAT-X Module / PREHEAT-X-EXT Module OE377-26-00061 / OE377-26-00061-1 ASM01688 / ASM01689
Standard Room Sensor - Plain or W/ Override OE210 / OE211 ASM02227 / ASM01638
Standard Room Sensor - with Setpoint Adjust or Setpoint
Adjust and Override OE212 / OE213 ASM01642 / ASM01643
Strap-On Temperature Sensor Kit OE233 ASM01624
Suction Pressure Transducer OE275-01 ASM02222
System Manager TS-L (Touch Screen - Limited Access) OE392-11 ASM01900
USB-Link 2 Kit OE366 ASM02244
OVERVIEW
Part Number Cross Reference

12 VCCX2 Controller Technical Guide
PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO.
ASM01698 VCCX2 Controller
The VCCX2 Controller provides eight analog inputs, four analog outputs, eight
binary inputs, and eight relay outputs. It also has an on-board BACnet port for
connection to an MS/TP network. The Controller contains a 2 x 8 LCD character
display and four buttons that allow for status and alarm display as well as
BACnet conguration. It allows for the addition of the RSM, EM1 Expansion
Module, and the 12 Relay E-BUS Expansion Module.
NOTE: Set-up, conguring, and monitoring of the VCCX2 Controller requires
one of the following communication interfaces—Prism 2 front-end software used
with a personal computer, Modular System Manager SD, or Modular Service Tool
SD.
Pages
20, 25, 26
ASM01686 Refrigerant System Module for VFD Compressors
The Refrigerant System Module for VFD Compressors (RSMV) monitors and
controls one tandem compressor refrigeration circuit of the HVAC unit. The
module is designed for R410-A refrigerant. Up to four RSMV Modules can
be connected, depending on the size of the system. There are two E-BUS
expansion ports which allow for the use of communicating sensors and E-BUS
modules. The RSMV provides four analog inputs, three binary inputs, three
relays, and four analog outputs. It connects with an E-BUS cable to the VCCX2
Controller.
Pages
21, 51-52
ASM01693 Refrigerant System Module for VFD Heat Pumps
The Refrigerant System Module for VFD Heat Pumps (RSMV-HP) monitors and
controls one refrigeration circuit of the HVAC unit. The module is designed for
R410-A refrigerant. The RSMV-HP is connected to the VCCX2 Controller. Up to
four RSMV-HP Modules can be connected, depending on the size of the system.
There are two E-BUS expansion ports which allow for the use of communicating
sensors and E-BUS modules. The RSMV-HP provides six analog inputs, four
binary inputs, four relays, and two analog outputs. It connects with an E-BUS
cable to the VCCX2 Controller.
Pages
21, 53-54
ASM02201 Refrigerant System Module for Digital Compressors
The Refrigerant System Module for Digital Compressors (RSMD) monitors
and controls one or two refrigeration circuits of the HVAC unit. The module is
designed for R410-A refrigerant. Up to four RSMD Modules can be connected,
depending on the size of the system. There are two E-BUS expansion ports
which allow for the use of communicating sensors and E-BUS modules. The
RSMD provides three analog inputs, four binary inputs, ve relays, and two
analog outputs. It connects with an E-BUS cable to the VCCX2 Controller.
Pages
21, 55-56
ASM02351 Refrigerant System Module for RNZ
The Refrigerant System Module for RNZ (RSMZ) monitors and controls one
refrigeration circuit of the HVAC unit. The module is designed for R410-A
refrigerant. Either three or six RSMZ Modules can be connected, depending on
the size of the system. There are two E-BUS expansion ports which allow for the
use of communicating sensors and E-BUS modules. It connects with an E-BUS
cable to the VCCX2 Controller.
Pages
21, 57-58
ASM02350 Subcool Monitor Module
The Subcool Monitor Module reads the liquid line pressure then converts it
to a saturated liquid temperature and compares it to the measured liquid line
temperature to calculate subcooling. The Subcool Monitor Module is used
in conjunction with the RSMZ Module. One or two Subcool Monitors can be
connected, depending on the size of the system:
• One is used when three RSMZ Modules are used
• Two are used when six RSMZ Modules are used.
It connects with an E-BUS cable to the VCCX2 Controller.
Page 59
OVERVIEW
Parts and Descriptions

13
VCCX2 Controller Technical Guide
PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO.
ASM01668 MODGAS-X Module
The MODGAS-X modulates up to two gas valves to maintain a desired discharge
air temperature. It also controls the speed of the induced draft fan to maintain
proper combustion in the heat exchanger. It connects with an E-BUS cable to the
VCCX2 Controller. Page 61
ASM01695 MODGAS-XWR2 Module
The MODGAS-XWR2 is designed to be used with White-Rodgers valves only.
It will modulate up to two White-Rodgers gas valves to maintain a desired
discharge (supply) air temperature. Up to four modulating gas valves may be
controlled when a second MODGAS-XWR2 is congured as a slave module. It
also controls the speed of the induced draft fan to maintain proper combustion in
the heat exchanger. It connects with an E-BUS cable to the VCCX2 Controller.
Page 62
ASM01670 MHGRV-X Module
The MHGRV-X controls a Modulating Hot Gas Reheat Valve to maintain a
desired supply air temperature and Dehumidication Setpoint. It connects with
an E-BUS cable to the VCCX2 Controller.
Page 60
ASM01687 MHGRV REHEAT Expansion Module
The MHGRV Reheat Expansion Module is designed to control one set of reheat
valves. The Reheat Expansion Module connects to the MHGRV-X via an E-BUS
communication cable. Connected together, the Reheat Expansion Modules
provide a system that allows the proper control of multiple sets of valves.
N/A
ASM01688
ASM01689
PREHEAT-X and PREHEAT-X-EXT Modules
The PREHEAT-X and PREHEAT-X-EXT are designed to control xed stages of
Preheat or optional Modulating Preheat to maintain a desired Preheat Leaving
Air Temperature Setpoint. The PREHEAT-X is limited to a 35°F Leaving Air
Temperature Setpoint. The PREHEAT-X-EXT module has an extended Leaving
Air Temperature Setpoint minimum of 0°F and should only be used with the
approval of AAON. The module directly connects to the VCCX2 Controller or
indirectly using an E-BUS Expansion Board via an E-BUS cable.
Page 63
ASM01691 VCC-X EM1 Expansion Module
The EM1 Expansion Module adds Title 24 economizer feedback and chilled
water applications. It also provides a duct static input for exhaust fan control,
return air plenum pressure control, and return/exhaust proof of ow. It provides
two analog outputs for controlling a return air bypass damper and a return
damper in return air bypass applications. It also has ve congurable relay
outputs. It connects with an E-BUS cable to the VCCX2 Controller.
Pages
22, 45-46
OVERVIEW
Parts and Descriptions

14 VCCX2 Controller Technical Guide
PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO.
ASM01873 12 Relay E-BUS Expansion Module
The 12 Relay Expansion Module adds 12 congurable relays to the VCCX2
Control System. It connects to the VCCX2 Controller with an E-BUS cable.
Pages
23, 49
ASM02227
ASM01638
ASM01642
ASM01643
Standard Room Sensor – Standard, with Override, with Slide
Adjust, and with Override and Slide Adjust
Includes: Standard Room Sensor - Standard, with Override, with Slide Adjust,
and with Override and Slide Adjust. For wall mounting. Use with VCCX2
Controller only. Connects to controller via eld fabricated wiring.
TMP
GND
AUX
OUT
Page 30
ASM01819
ASM01820
ASM02221
E-BUS Digital Room Sensor - Temp Only and Temp and Humidity
The ASM01819 is used with the VCCX2 Controller for space air temperature
sensing applications. The ASM01820 and ASM02221 (no LCD display) are
used with the VCCX2 Controller for room air temperature and humidity sensing
applications. All three use E-BUS cables.
Display Override
OVERRIDE ALARM
Page 27
ASM01829 E-BUS CO2Wall-Mounted Sensor
Used with the VCCX2 Controller for CO2 sensing applications where wall
mounting in the space is desired. Connects to the VCCX2 Controller with an
E-BUS cable of required length. Cable sold separately.
Page 28
ASM01831 E-BUS CO2Duct-Mounted Sensor with Remote Pickup Tube
Used with the VCCX2 Controller for duct mounted CO2 sensing applications.
Connects to the VCCX2 Controller with an E-BUS cable of required length.
Includes: Duct-Mounted CO2 Sensor, Integral Aspiration Box, Airow Pickup
Tube and 10 ft. E-BUS cable.
4 3 2 1
3M
Page 29
ASM01836 E-BUS Horizontal Outdoor Air Temperature and Humidity Sensor
Used for outdoor air temperature and humidity sensing applications. Connects to
VCCX2 Controller or E-BUS Adapter Hub using E-BUS cable.
Includes: E-BUS Horizontal Outdoor Air Temperature and Humidity Sensor,
mounted in a weatherproof handy box with attached 3 ft. E-BUS cable with jack.
A 25 ft. E-BUS cable is included to connect to the VCCX2 Controller. If a longer
E-BUS cable is required, it must be ordered separately.
37X04
1.2
1.6
<PC>
4 3 2 1
3M
Page 36
ASM01838 E-BUS Vertical Outdoor Air Temperature and Humidity Sensor
Used for outdoor air temperature and humidity sensing applications. Connects to
VCCX2 Controller or E-BUS Adapter Hub using E-BUS cable.
Includes: E-BUS Vertical Outdoor Air Temperature and Humidity Sensor,
mounted in a weatherproof handy box with attached 3 ft. E-BUS cable with jack.
A 25 ft. E-BUS cable is included to connect to the VCCX2 Controller. If a longer
E-BUS cable is required, it must be ordered separately.
37X04
1.2
1.6
<PC>
4 3 2 1
3M
Page 36
OVERVIEW
Parts and Descriptions

15
VCCX2 Controller Technical Guide
PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO.
ASM01840 E-BUS Return Air Temperature and Humidity Sensor
Used for return air temperature and humidity sensing applications.
Connects to VCCX2 Controller or E-BUS Adapter Hub using E-BUS cable.
Includes: E-BUS Return Air Temperature and Humidity Sensor, mounted in
a weatherproof handy box attached with a 3 ft. E-BUS cable with jack. A 50
ft. E-BUS cable is included to connect to the VCCX2 Controller. If a longer
E-BUS cable is required, it must be ordered separately.
37X04
1.2
1.6
<PC>
4 3 2 1
3M
Page 37
ASM02222 Suction Pressure Transducer
Used for suction pressure sensing applications. Connects to the Refrigerant
System Modules. Includes: Suction Pressure Transducer and modular cable
with a modular connector on one end and bare stripped wires on the other
end.
Pages
52, 53, 55
G029440 (1.5F)
G012870 (3F)
G029460 (10F)
G045270 (25F)
G029510 (50F)
GO29530 (75F)
G029450 (100F)
G029470 (150F)
V36590 (250F)
G018870 (SPOOL)
E-BUS Cables
The E-BUS cables connect to the VCCX2 Controller, VCC-X Expansion
Modules, and E-BUS Sensors. Di󰀨erent lengths can be joined together using
an E-BUS Adapter Hub, if necessary. The E-BUS cables are available in 1.5
ft., 3 ft., 10 ft., 25 ft., 50 ft., 75 ft., 100 ft., 150 ft., and 250 ft. lengths.
Includes: E-BUS Cable Assembly.
The E-BUS CABLE SPOOL is bulk E-BUS cable that can be used with the
E-BUS Bulk Connectors.
Pages
25-63
G018890 E-BUS Bulk Connectors
Attaches to E-BUS Spool Cable. Must be crimped using either the G034180
E-BUS Crimp Tool or one matching the requirements listed in the pricing list.
Includes: E-BUS Bulk Connector.
N/A
G034180 E-BUS Crimp Tool
Crimps the E-BUS Connectors for use with the E-BUS Spool Cable. Includes:
E-BUS Crimp Tool.
N/A
G042230 Outdoor Air Temperature Sensor
Used for temperature sensing applications. Includes: 10K ohm Outdoor Air
Temperature Sensor, two wire, mounted in a weatherproof handy box only.
Page 35
ASM02242 Duct Static Pressure Pick-up Tube
Used with the Duct Static Pressure Rransducer for static pressure sensing
applications. Includes: static pressure pick-up tube with 1 ft. length of FRP
tubing, gasketed mounting bracket, and screws.
Page 38
ASM01640 Duct Static Pressure Sensor
Used for duct static pressure sensing applications. Includes: 0-5″ W.C., 0-5
VDC, Static Pressure Sensor only.
Page 38
ASM01832 Building Static Pressure Sensor
Used for building pressure sensing. Includes: -0.25 to +0.25″ W.C., 0-5 VDC,
and 24 VAC/VDC supply power Building Pressure Sensor only.
Page 33
G051240 (6”)
G051250 (12”)
Duct Temperature Sensor - 6” Probe
Duct Temperature Sensor - 12" Probe
G051240 = 6″ probe length. G051250 = 12″ probe length. Used for return
or supply air temperature sensing applications. Includes: 10K ohm Duct
Temperature Sensor, two-wire only.
Pages
31 and 32
OVERVIEW
Parts and Descriptions

16 VCCX2 Controller Technical Guide
PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO.
ASM01624 Strap-on Temperature Sensor Kit
Includes: Type III 10K ohm two-wire Strap-on Temperature Sensor, thermal
mastic, and plastic mounting strap. Used for water temperature sensing
applications.
Pages
43 and
44
ASM01900 System Manager Touch Screen - Limited Access
The System Manager Touch Screen - Limited Access (SMTS-L) provides a
direct, graphic-enhanced, menu-driven link. The SMTS-L is an end-user interface
only and allows the end user to view status points, change Space Setpoints,
and view certain alarms of most controllers on the Orion Controls System. The
SMTS-L is equipped with a 4.3” 480 x 272 WQVGA RGB TFT LCD Touch Screen
Display. The SMTS-L is furnished with hardware for ush mounting into hollow
drywall or surface mounting on concrete brick or plaster surfaces. Includes:
SMTS-L with 12 ft. pigtail cable.
See the
System
Manager
TS-L
Technical
Guide
ASM01895 Modular Service Tool SD
Used to program and monitor all Orion controllers. Includes: Modular Service
Tool, power supply, communication cables, 4 GB SD card, and four AA batteries. Mode
Selection
STATUS
SETPOINTS
SCHEDULES
OVERRIDES
ALARMS
CONFIGURATION
BALANCE- TEST
ON
78
0
DEC MINUS
9
4 5 6
12 3
ENTER
ESC CLLAR
DOWN
UP
PREV NEXT
See the
VCCX2
Controller
Operator
Interfaces
SD
Technical
Guide
ASM01901 Modular System Manager SD
Used to program and monitor all Orion controllers. Designed for hollow core wall
mounting. When System Manager is to be mounted on a solid wall (concrete),
AAON recommends attaching the System Manager to a standard handy box.
Includes: Modular System Manager SD with 4 GB SD card and 12 ft. pigtail
cable assembly.
STATUS
SETPOINTS
SCHEDULES
OVERRIDES
ALARMS
78
0
DEC MINUS
9
4 5 6
12 3
ENTER
ESC CLLAR
DOWN
UP
PREV NEXT
See the
VCCX2
Controller
Operator
Interfaces
SD
Technical
Guide
ASM01874 CommLink 5 Communications Interface
The CommLink 5 connects to the control system using a USB computer
connection to provide direct on-site communications with the control system from
a computer with the Prism 2 software installed. For remote communications, see
the IP Module Kit.
Includes: CommLink 5, 6 ft. USB cable, and 120/24 VAC power supply. Required
on all networked systems or if direct computer or remote computer connection
is required. Connects to user computer’s USB 1.1 or 2.1 port. Prism 2 computer
front-end software must be installed on the direct connected or remote
connected computer in order to communicate with user’s system.
See the
CommLink
5 Techni-
cal Guide
ASM01902 IP Module Kit - Internet/LAN Connection
Used for Internet or Local Area Network communications with the control system.
Field installs by plugging into the CommLink 5 circuit board and provides an
addressable Ethernet connection to the controls system from any computer
connected to the building’s LAN. It can also be congured to allow access to
the control system from the Internet through the LAN if the Ethernet rewall is
congured for this option.
Includes: IP Link module, 10 ft. long Ethernet cable, and installation instructions.
Prism 2 computer front-end software must be installed on the remote computer
in order to dial-up and communicate with the controls system.
See the
IP Module
Technical
Guide
OVERVIEW
Parts and Descriptions

17
VCCX2 Controller Technical Guide
PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO.
ASM02244 USB-Link 2 Kit
The USB-Link 2 is a pocket-sized communications interface used to connect
a laptop computer to the controls system for programming and monitoring
purposes, utilizing a modular cable to allow connection to the service port
connector on the controllers and a USB cable to connect to a laptop computer.
Includes: USB-Link 2 for multiple or single loop systems, USB cable, modular
connection cable, two mini-DIN to terminal adapters, and Prism 2 software.
See the
USB-Link
2
Technical
Guide
ASM01626 MiniLink PD 5
Used with all Orion controllers to provide network communications, zone voting,
alarming, and tenant logging capabilities. A MiniLink Polling Device is required on
each loop of a networked system. Includes: MiniLink Polling Device 5.
See the
Orion
MiniLink
PD 5
Technical
Guide
ASM02533 Prism 2 Front-End Computer Software
Prism 2 provides standard, easy to understand status screens for each type of
equipment installed. Prism 2 software has provisions for custom screens which
allow oor plans, equipment photos, or user-dened summary screens to be
implemented to meet their own individual needs. All controlling setpoints, trend
logs, and alarm conditions are accessed in the Prism environment. Prism can be
congured for direct on-site installation, remote modem connection, or TCP/IP
Internet connection to several installations.
Page 64
ASM01878 E-BUS Adapter Board
The E-BUS Adapter Board is used for connecting the EBTRON, GreenTrol,
or Paragon Airow Measurement Digital Transmitter to the VCCX2 Controller.
It connects with an E-BUS cable to the VCCX2 Controller. Cable supplied
separately.
Page 50
G033970 E-BUS Adapter Hub
The E-BUS Adapter Hub is used for connecting E-BUS devices and controllers
together with E-BUS cables of varying lengths. Includes: E-BUS Adapter Hub.
Pages
36 and
37
ASM01635 E-BUS Adapter Hub with 1.5 ft. E-BUS Cable
The E-BUS Adapter Hub is used for connecting E-BUS devices and controllers
together with E-BUS cables of varying lengths. Includes: E-BUS Adapter Hub
and 1.5 ft. E-BUS cable.
Pages
36 and
37
ASM01696 E-BUS Space Temperature and Humidity Sensor Emulator Board
with 1.5 ft. E-BUS Cable
The E-BUS Space Temperature and Humidity Sensor Emulator Board allows the
use of third-party analog space temperature and humidity sensors to emulate
the AAON E-BUS Space Temperature and Humidity Sensor. Includes: E-BUS
Sensor Emulator Board and 1.5 ft. E-BUS cable.
SENSOREMULATION BOARD
E-BUSRETURN AIR TEMP/HUMIDITY
OE365-04-EBSE
N/A
ASM01621 E-BUS Return Air Temperature and Humidity Sensor Emulator
Board with 1.5 ft. E-BUS Cable
The E-BUS Return Air Temperature and Humidity Sensor Emulator Board
allows the use of third-party analog return air temperature and humidity sensors
to emulate the AAON E-BUS Return Air Temperature and Humidity Sensor.
Includes: E-BUS Sensor Emulator Board and 1.5 ft. E-BUS cable.
E-BUSSPACE TEMP/HUMIDITY
SENSOREMULATION BOARD
OE365-03-EBSE
N/A
OVERVIEW
Parts and Descriptions

18 VCCX2 Controller Technical Guide
PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO.
ASM01697 E-BUS Outdoor Air Temperature and Humidity Sensor Emulator
Board with 1.5 ft. E-BUS Cable
The E-BUS Outdoor Air Temperature and Humidity Sensor Emulator Board
allows the use of third-party analog outdoor air temperature and humidity
sensors to emulate the AAON E-BUS Outdoor Air Temperature and Humidity
Sensor. Includes: E-BUS Sensor Emulator Board and 1.5 ft. E-BUS cable.
E-BUS RETURN AIR CO2
SENSOR EMULATION BOARD
OE365-07-EBSE
N/A
ASM01622 E-BUS Space CO2Sensor Emulator Board with 1.5 ft. E-BUS Cable
The E-BUS Space CO2 Sensor Emulator Board allows the use of a third-party
analog CO2 sensor to emulate the AAON E-BUS Wall-Mounted Space CO2
Sensor. Includes: E-BUS Sensor Emulator Board and 1.5 ft. E-BUS cable.
E-BUS RETURN AIR CO2
SENSOR EMULATION BOARD
OE365-07-EBSE
N/A
ASM01623 E-BUS Return Air CO2Sensor Emulator Board
with 1.5 ft. E-BUS Cable
The E-BUS Return Air CO2 Sensor Emulator Board allows the use of a third-party
analog CO2 sensor to emulate the AAON E-BUS Duct-Mounted CO2 Sensor.
Includes: E-BUS Sensor Emulator Board and 1.5 ft. E-BUS cable.
E-BUS RETURN AIR CO2
SENSOR EMULATION BOARD
OE365-07-EBSE
N/A
ASM01907 Communication Surge Protector Kit
Used to isolate power surges to the communications wiring caused by lightning
strikes for communications wiring loops that are routed outdoors or between
buildings. One kit is required at each point where the communications wiring
leaves or enters a building. Includes: Communication Bus Surge Protector, Base
Module, and mounting/wiring instructions.
N/A
ASM01868 GPC-XP Controller
The GPC-XP Controller is used for controlling equipment or processes that
cannot be controlled using a standard HVAC controller. Prism 2 computer
front-end software is used to interface with the GPC-XP Controller functions.
The GPC-XP Controller provides the exibility to control, schedule, and/or
monitor equipment such as unit heaters, exhaust fans, motorized louvers, and
other mechanical equipment. In addition, the GPC-XP provides lead/lag start
capabilities.
The GPC-XP has eight congurable analog inputs which will accept signals from
Thermistor Temperature Sensors, 4-20 mA or 0-5 VDC or 0-10 VDC transmitters.
Custom formulas created by available math functions and operators can be used
in conjunction with the analog inputs to create a calculated value to be used and
displayed for a specic analog input.
The inputs are set for the desired scaling by means of a jumper bar. An additional
input is available for communicating sensors available from AAON Controls.
The GPC-XP also supports eight wet contact binary inputs which can be
congured for either normally open or normally closed operation. The GPC-XP
has eight relay outputs for on/o󰀨 control and four analog outputs for proportional
control signals.
Highest/lowest/average of the analog input values can be used in the GPC-XP
logic or broadcast to other controllers on the control system loop. The GPC-XP
also has eight separate schedules which can be assigned to any input or
output for operational control or alarm recognition based on time of day. These
schedules can also be congured to broadcast to other AAON HVAC equipment
installed on the control system loop. Includes: GPC-XP Controller.
See the
GPC-XP
Controller
Technical
Guide
OVERVIEW
Parts and Descriptions

19
VCCX2 Controller Technical Guide
Figure 1: VCCX2 Controller Components
OVERVIEW
VCCX2 Controller Components

20 VCCX2 Controller Technical Guide
Figure 2: VCCX2 Controller Dimensions
DIMENSIONS
VCCX2 Controller
4.10
0.70
7.95
8.38
0.213 2.75
6.04
Note: All Dimensions are in inches.
Note: Depth is 1.50 inches.