Name: Orion Control Systems AAON VCCX2
Brand: Orion Control Systems
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VCCX2 Controller Technical Guide

Note: All Relay Outputs are normally open

and rated for 24 VAC power only.

1 amp maximum load

Waterside Economizer Valve

Figure 7: VCCX2 Controller Output Wiring

WIRING

VCCX2 Controller Outputs

Default Chapter3
- Table of Contents3
Overview9
- System Features9
- Applications10
- Part Number Cross Reference11
- Parts and Descriptions12
- Figure 1: VCCX2 Controller Components19
- VCCX2 Controller Components19
- Figure 2: VCCX2 Controller Dimensions20
- Refrigerant System Module (RSM)21
Dimensions20
- VCCX2 Controller20
- VCC-X EM1 Expansion Module22
- Figure 5: 12 Relay E-BUS Module Dimensions23
- Table 1: Voltage and Environment Requirements24
- VCCX2 Controller Inputs25
Wiring24
- Important Wiring Considerations24
  - Figure 6: VCCX2 Controller Input Wiring25
  - E-BUS Digital Room Sensor27
- VCCX2 Controller Outputs26
Figure 44: PREHEAT-X to VCCX2 Controller Wiring63
Figure 45: Modular Service Tool SD, Modular System Manager SD, System Manager TS-L, and Prism 2 Software Operator Interfaces64
Start - up and Commissioning64
- Powering up and Configuration64
- Table 3: VCC-X EM1 Inputs and Outputs65
- Table 2: VCCX2 Controller Inputs and Outputs (Continued)65
- Table 2: VCCX2 Controller Inputs and Outputs65
- VCCX2 Controller Inputs66
- VCCX2 Controller Outputs67
- VCC-X EM1 Expansion Module68
- 12 Relay E-BUS Expansion Module69
Inputs and Outputs65
- VCCX2 Controller and EM1 Module Input/Output Maps65
- Table 4: User-Configurable Relay Outputs69
Sequence of Operations70
- Supply Fan and Occupied/Unoccupied Operation70
- HVAC Modes of Operation71
- Economizer Operation73
- Dehumidification Mode74
- Reheat, Coil Suction, and Return Air Bypass Damper75
- Heating Mode76
- Ventilation Mode, Remote Contact Control, and Space Sensor Operation77
- IAQ Control, Morning Warm-Up and Cool-Down, and Single Zone VAV79
- Airflow Monitoring, Preheater, Low Ambient and Duct Static Press81
- Duct Static Setpoint Reset and Duct Static Pressure Control82
- Building Pressure Control and Exhaust Duct Static Pressure Control83
- MUA, CAV/MUA, and Space Temperature Control84
- VAV W/Sa Tempering, Air to Air Heat Pump and Standard Defrost85
- Heat Pump Adaptive Defrost, WSHP, EXV and Head Pressure86
- Evaporative Condenser, WSE, OA Lockouts and Temp Protection87
- Alarm Detection and Sensor Failure Alarms89
- Mechanical Failure and Failure Mode Alarms91
- Title 24 Economizer Alarms92
- Table 5: VCCX2 Controller Trend Logs93
- VCCX2 Controller Trend Logs93
- RSMV/RSMD/RSMZ Trend Logs and Trend Log Enumerated Values94
- Table 7: RSMV/RSMD Module Trend Logs94
- Table 6: RSMZ Module Trend Logs94
- RSMZ Trend Logs and Trend Log Enumerated Values95
  - Table 8: Trend Log Enumerated Values95
  - Table 9: RSMZ Module Comp Status Trend Log95
  - Table 10: RSMZ Module RSM Alarm Trend Log95
  - Table 13: RSMZ Module VFD Alarm 2 Trend Log96
  - Table 12: RSMZ Module VFD Alarm 1 Trend Log96
  - Table 11: RSMZ Module VFD Status Trend Log96
  - Trend Log Bit String Decoding97
- RSMZ Trend Logs and Trend Log Enumerated Values96
Table 14: VCCX2 Trend Log Bit Strings98
Table 14: VCCX2 Trend Log Bit Strings (Continued)99
Troubleshooting100
- VCCX2 Controller and EM1 LED Diagnostics100
- Figure 46: VCCX2 Controller LED Locations101
- Temperature Sensor Testing102
Table 16: Duct Static Pressure/Voltage for Duct Static Pressure Sensors103
Table 17: Building Static Pressure/Voltage for Building Pressure Sensors103
Appendix A - System Configuration104
- System Configurations104
- Stand-Alone System Layout105
- Networked System Single Loop Layout106
Figure 50: Typical Networked Multiple Loop System Layout107
Figure 51: LCD Display and Navigation Keys108
Appendix B - Vccx2 Lcd Screens108
- Navigation Keys108
- Table 18: Navigation Key Functions108
- Main Screens Map109
- Setting Screens110
- Status Screens111
- Alarm Screens112
- Output Override Screens113
- Air Balance Screens and Factory Test Mode Screen114
Appendix C - Vccx2 Bacnet115
- VCCX2 Bacnet ® Parameters115
Index135

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Orion Control Systems AAON VCCX2 Specifications

General

Brand	Orion Control Systems
Model	AAON VCCX2
Category	Controller
Language	English

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