Orion System VCC-X Controller - Manual (Page 5)

OVERVIEW
5 VCC-X Controller Technical Guide
System Features
Features
The VCB-X Controller (OE335-26B-VCBX-A) is designed with 5
analog inputs, 3 analog outputs, 1 triac output, 4 binary inputs, and 6
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 4 buttons that allow for status and alarm display and
force modes as well as BACnet confi guration.
The VCB-X EM1 Expansion Module (OE336-23-EM1-A) provides
an additional 6 analog inputs, 4 analog outputs, 3 binary inputs,
and 5 confi gurable relay outputs. The VCB-X EM2 Expansion
Module (OE336-23-EM2-A) provides an additional 1 analog
input, 2 analog outputs, and 3 binary inputs. The VCB-X 12
Relay Expansion Module (OE358-23E-12R-A) provides up to 12
additional confi gurable relay outputs.
There are also 2 E-BUS Expansion Ports which allow for
the connection of the three expansion modules listed above,
communicating sensors, an EBTRON
® or GreenTrol TM Airfl ow
Monitoring system, and future E-BUS Modules via modular cable
assemblies. There are presently 5 communicating sensors available.
Two of these sensors have LCD displays: E-BUS Digital Space
Temperature Only Sensor or E-BUS Digital Space Temperature
and Humidity Sensor. There is a communicating E-BUS Space
Temperature and Humidity Sensor with no LCD display as well as
an E-BUS Space CO
2
Sensor, and E-BUS Duct CO
2
Sensor with
no LCD display.
The VCB-X Controller provides for Constant Volume, VAV, Single
Zone VAV, MUA, and Air to Air Heat Pump applications.
Most common HVAC unit control applications can be confi gured
using only the VCB-X Controller. If the application requires more
inputs and/or outputs, the optional expansion modules are available
to provide for additional analog, binary, or digital inputs and outputs
as required.
Other features of the VCB-X include:
• Up to 5 Total Stages of Heating and Cooling
• Direct Digital Control of Copeland Digital
Scroll™ Compressor
• 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 ® MODGAS-X
Modulating Natural Gas Controller
• Full Integration with the AAON ® MHGRV-X
Modulating Hot Gas Reheat Controller
• Confi gurable for Heat Pump Applications
• Heat Pump Defrost Operation
• Advanced Dehumidifi cation Capabilities
• Auxiliary and Emergency Heat Options for Heat
Pumps
• Air Flow Monitoring of Outdoor Air, Supply Air,
Return Air, and Exhaust Air Streams
• Air Flow Control of Outdoor Air Damper
• Single Zone VAV Control w/Optional CAV Heating
• Primary/Secondary Heating Control
• Remote Forced Cooling, Heating, and
Dehumidifi cation Control
• Remote SAT Reset Signal
• Return Air Bypass Control
• Adaptive Supply Air Reset
• Selectable Mode Enable Sensor
• Fan Proving Interlock
• Dirty Filter Alarm
• Emergency Shutdown Input (Smoke Detector/
Firestat or other Shutdown Conditions)
• Drybulb/Wetbulb/Dewpoint Control of Economizer
Operation
• Building Pressure Control (Direct or Reverse
Acting)
• Remote Forced Occupied Capability
• Confi gurable for AAON ® PAC and DPAC Applications
• IAQ Economizer Reset
• Title 24 Economizer Certifi ed
• 7-Day, 2-Event-per-Day Scheduling
• 14 Holiday Event Scheduling
• Daylight Savings Time Adjustment
• Trend Logging Capability
• Static Pressure Control for Filter Loading
Applications
• Heat Wheel - On/Off Control
• Head Pressure Control
• Water Source Heat Pump Monitoring
• On-board BACnet ® port for connection to an
MS/TP network (See Appendices B & C)