AAON Orion VCCX2 Technical Manual
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AAON Orion VCCX2 Technical Manual

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VCCX2 Controller
Technical Guide
VCCX2 Controller Code: SS1088 Version 1.02 and up
Requires Service Tool SD Code: SS1063 Version 1.11 and up
Requires System Manager SD Code: SS1068 Version 1.11 and up
Requires System Manager Touch Screen (Limited Access): SS7013

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Summary of Contents for AAON Orion VCCX2

  • Page 1 VCCX2 Controller Technical Guide VCCX2 Controller Code: SS1088 Version 1.02 and up Requires Service Tool SD Code: SS1063 Version 1.11 and up Requires System Manager SD Code: SS1068 Version 1.11 and up Requires System Manager Touch Screen (Limited Access): SS7013...
  • Page 2 AAON, Inc. AAON Part Number: G039840, Rev. 01K 2425 South Yukon Ave. AAON is a registered trademark of AAON, Inc., Tulsa, OK. ® Tulsa, OK 74107-2728 BACnet is a registered trademark of ASHRAE Inc., Atlanta, GA. ®...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS OVERVIEW ............................6 Features .................................. 6 Applications ................................7 Part Number Cross Reference ..........................8 Parts List .................................. 9 VCCX2 Controller Dimensions ..........................16 Typical RSM Module Dimensions .......................... 17 EM1 Expansion Module Dimensions ........................18 12 Relay Expansion Module Dimensions ......................19 VCCX2 Controller Components ..........................
  • Page 4 TABLE OF CONTENTS START-UP & COMMISSIONING ..................... 59 Confi guring the Controller ............................59 INPUTS & OUTPUTS ........................60 VCCX2 Controller Inputs & Outputs ........................61 VCC-X EM1 Inputs & Outputs ..........................63 Relay Outputs ................................ 63 SEQUENCE OF OPERATIONS ......................64 Supply Fan Operation Mode ..........................

  • Page 5: Vccx2

    TABLE OF CONTENTS Alarm Detection and Reporting ..........................77 Sensor Failure Alarms ............................77 Mechanical Failure Alarms ............................. 78 Failure Mode Alarms .............................. 78 Title 24 Economizer Alarms ........................... 78 Trend Logging ................................ 79 TROUBLESHOOTING ........................80 LED Diagnostics ..............................80 VCCX2 Controller &...

  • Page 6: Overview

    Modulating Heating Output ( Hot Water Valve, • Trend Logging Capability Steam Valve, SCR Electric Heat Control) • Static Pressure Control for Filter Loading • Full Integration with the AAON Refrigerant ® Applications System Modules • Heat Wheel - On/Off Control •...

  • Page 7: Applications

    Outdoor Air control. is also available. The controller can be confi gured to control the supply fan VFD to maintain a duct static pressure setpoint. AAON Return Air Bypass Control ® The VCCX2 can also control VAV units that may require occupied This control scheme can only be used on Constant Volume HVAC Heating operation to “temper”...

  • Page 8: Part Number Cross Reference

    Part Number Cross Reference OVERVIEW 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...

  • Page 9: Parts List

    Discharge Air Temperature. It also controls the speed of the induced draft fan to maintain proper combustion in the heat exchanger. The MODGAS-X Controller connects to the VCCX2 Controller via an Page 57 EBC E-BUS cable. Available only from AAON. VCCX2 Controller Technical Guide...

  • Page 10: Slide Adjust

    The MODGAS-XWR-1 Controller connects to the VCCX2 DUAL #000078 CONNECT E-BUS Rev.: 1B Controller via an EBC E-BUS cable. Available only from AAON. ASM01670 MHGRV-X Controller MHGRV-X Controller controls a Modulating Hot Gas Reheat Valve to maintain a desired Supply Air Temperature and Dehumidifi cation setpoint.

  • Page 11: Applications

    OVERVIEW Parts and Descriptions PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO. ASM01819 E-BUS Digital Room Sensor - Temp. Only & Temp & Humidity ASM01820 LCD Display and keypad allow for setpoint adjustment, override, and ASM02221 display of certain status and setpoints. The ASM01819 is used with the OVERRIDE ALARM Page 24...
  • Page 12 OVERVIEW Parts and Descriptions PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO. G029440 EBC E-BUS Cables (1.5F) G012870 The EBC E-BUS Cables connect to the VCCX2 Controller, (3F) G029460 VCC-X Expansion Modules, and E-BUS Sensors.. Diff erent lengths (10F) G045270 can be joined together using an EBC Adapter Hub, if necessary. The (25F) G029510 EBC E-BUS Cables are available in 1.5, 3, 10, 25, 50, 75, 100, 150,...
  • Page 13 OVERVIEW Parts and Descriptions PART NO. PART DESCRIPTION ILLUSTRATION PAGE NO. ASM01895 Modular Service Tool SD See the Includes: Modular Service Tool, power supply, communication cables, VCCX2 4 Gigabyte SD card, and (4) AA batteries. Used to program and monitor Controller all Orion controllers.
  • Page 14 The E-BUS Return Air Temperature and Humidity Sensor Emulator Board allows the use of 3rd party analog return air temperature and humidity sensors to emulate the AAON E-BUS combination Return Air Temperature and Humidity Sensor. Includes: E-BUS Sensor Emulator Board and 1.5 foot EBC E-BUS cable.
  • Page 15 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 8 wet contact binary inputs which can be confi gured for either normally open or normally closed operation.

  • Page 16: Vccx2 Controller Dimensions

    OVERVIEW VCCX2 Controller Dimensions Figure 1: VCCX2 Controller Dimensions VCCX2 Controller Technical Guide...

  • Page 17: Typical Rsm Module Dimensions

    RSM’s Dimensions. RSMV Shown. 5.73 5.24 2.62 ALARM MENU ENTER www.aaon.com OE370-26-RSMV DOWN REFRIGERANT SYSTEM MODULE V AAON No.: V42440 RELAY OUTPUT +5 V SUCTION RELAY CONTACT 5.63 5.00 TERMINALS PRESSURE RATING IS 1 AMP COMP 1 SENSOR MAX @ 24 VAC...

  • Page 18: Em1 Expansion Module Dimensions

    STATIC 1002 10uF VCC-X Expansion Module 1 TEMPERATURE SENSOR INPUT Orion No.: OE336-23-VCCXEM1 TERMINALS 1002 1002 ENTERING WATER 3650 10uF AAON No.: V53990 NOT USED 3650 ALARM TEMP SENSOR INPUTS STAT 3650 ECONO FEEDBACK ANALOG OUTPUT TERMINALS VREF 3650 COMM 5.63...

  • Page 19: Relay Expansion Module Dimensions

    OVERVIEW 12 Relay E-BUS Module Dimensions 6.06 5.52 2.76 MADE IN USA SERIAL # RLY-COM RLY-COM RLY1 RLY9 RLY2 RLY10 RLY3 RLY11 RLY4 RLY12 ADDRESS 5.00 5.63 RLY-COM RLY5 RLY6 RLY7 RLY8 R214 R212 R211 RELAY R213 TB10 EXPANSION BOARD WATTMASTER CONTROLS YS102324 REV 2 24VAC...

  • Page 20: Vccx2 Controller Components

    Zone OVERVIEW Zone Controller with Enclosure Components Figure 5: VCCX2 Controller w/Enclosure Components VCCX2 Controller Technical Guide...

  • Page 21: Installation & Wiring

    -30°F to OE358-23E-12R-A 24VAC 90% RH ground wires remain common. If after making all these checks, the 150°F POWER LED does not light up, please contact AAON Controls Support for assistance. Table 1: Voltage and Environment Requirements VCCX2 Controller Technical Guide...

  • Page 22: Vccx2 Input And Output Wiring

    Zone VCCX2 CONTROLLER WIRING Zone VCCX2 Controller Input Wiring VCCX2 Controller Inputs See Figures 6, below & Figure 7, page 23 for wiring details. Detailed wiring for all inputs and outputs are found on the pages that follow. The VCCX2 Controller is designed with 8 analog inputs, 4 analog outputs, 8 binary inputs and 8 relay outputs.
  • Page 23 VCCX2 CONTROLLER WIRING VCCX2 Controller Output Wiring VCCX2 Controller Outputs Also please note that when wiring the VCCX2 Controller, its contacts must be wired as wet contacts (connected to 24 VAC). The VCCX2 Controller must be connected to 24 VAC as shown in the wiring diagram below.

  • Page 24: E-Bus Digital Room Sensor

    Zone VCCX2 CONTROLLER WIRING Zone E-BUS Digital Room Sensor Wiring E-BUS Digital Room Sensor The E-BUS Digital Room Sensor should be mounted at approximately 5 Ft. above the fl oor on the wall in an area that does not have drafts or is exposed to direct sunlight.

  • Page 25: E-Bus Co Wall Mounted Sensor

    VCCX2 CONTROLLER WIRING Wall-Mounted E-BUS CO Sensor Wiring E-BUS CO Wall-Mounted Sensor It should be mounted at approximately 5 Ft. above the fl oor on the wall in an area that does not have drafts or is exposed to direct sunlight.

  • Page 26: Duct Mounted E-Bus Co Sensor

    E-BUS Hub or Adapter Board may be required. The Duct Mounted Return Air CO Sensor is comprised of the CO Sensor, the AAON Aspiration Box Assembly, and a Remote Pickup Tube. Figure 10: Duct Mounted E-BUS CO Sensor Wiring...

  • Page 27: Space Temperature Sensor & Slide Adjust

    VCCX2 CONTROLLER WIRING Space Temperature Sensor Wiring Space Temperature Sensor The Space Temperature Sensor is available as a sensor only, sensor with override button, sensor with slide adjust, and sensor with slide adjust and override confi gurations. The ASM02227, ASM01638, ASM01642, ASM01643 Space Temperature Sensor is typically used for constant volume HVAC unit See Figure 11, below for complete Space Temperature Sensor applications controlling one zone.

  • Page 28: Supply Air Temperature Sensor

    Zone VCCX2 CONTROLLER WIRING Zone Supply Air Temperature Sensor Wiring Supply Air Temperature Sensor The R36340 (6 inch) or P87140 (12 inch) Supply Air Temperature Sensor must be wired as shown for proper operation. The Supply Air Temperature Sensor is a 10K Type III thermistor sensor. The Supply Air Temperature Sensor should be mounted in the unit discharge plenum or in the supply air duct.

  • Page 29: Return Air Temperature Sensor

    VCCX2 CONTROLLER WIRING Return Air Temperature Sensor Wiring Return Air Temperature Sensor The R36340 (6 inch) or P87140 (12 inch) Return Air Temperature Sensor must be wired as shown for proper operation. The Return Air Temperature Sensor is a 10K Type III thermistor sensor. The Return Air Temperature Sensor should be mounted in the return air duct.

  • Page 30: Building Static Pressure Sensor

    Zone VCCX2 CONTROLLER WIRING Zone Building Pressure Sensor Wiring Building Pressure Sensor WARNING: It is very important to be certain that all wiring is correct as shown in the wiring diagram below. Failure to The ASM01832 Building Static Pressure Sensor must be wired as observe the correct polarity will result in damage to the HVAC shown in Figure 14, below.

  • Page 31: Remote Sat Reset Signal

    VCCX2 CONTROLLER WIRING Remote SAT Reset Wiring Remote SAT Reset Signal A Remote Supply Air Temperature Reset Signal can be connected to AI6 for applications requiring Remote Reset of the Supply Air Temperature Setpoint. See Figure 15, below. Figure 15: Remote SAT Reset Signal Wiring Diagram VCCX2 Controller Technical Guide...

  • Page 32: Outdoor Air Temperature Sensor

    Zone VCCX2 CONTROLLER WIRING Zone Outdoor Air Temperature Sensor Wiring Outdoor Air Temperature Sensor For applications involving Outdoor Air Humidity, the vertical or horizontal E-BUS Outside Air & Humidity Sensor must be used instead. See Figures 17, page 33 & Figure 18, page 34 for details. The G042330 Outdoor Air Temperature Sensor must be wired as shown for proper operation of the VCCX2 Controller.

  • Page 33: E-Bus Outdoor Air Temperature And Humidity Sensor

    VCCX2 CONTROLLER WIRING E-BUS Outdoor Air Temperature & Humidity Sensor Wiring E-BUS Horizontal or Vertical Outdoor CAUTION: Be sure to mount the Outdoor Air Temperature Air Temperature & Humidity Sensor & Humidity Sensor in an area that is not exposed to direct sunlight.

  • Page 34: E-Bus Return Air Temperature And Humidity Sensor

    Zone VCCX2 CONTROLLER WIRING Zone E-BUS Return Air Temperature & Humidity Sensor Wiring E-BUS Return Air Temperature & NOTE: If using multiple E-BUS Sensors or Modules, the Humidity Sensor E-BUS Hub (HZ-EBC-248 or MS000248) or E-BUS Adapter Board (OE365-15-EBA) may be The OE265-17-A E-BUS Return Air Temperature &...

  • Page 35: Suction Pressure Transducer Kit

    VCCX2 CONTROLLER WIRING Static Pressure Transducer Wiring Static Pressure Transducer CAUTION: It is strongly recommended that you use pneumatic tubing instead of relocating the sensor. Extending the wires The OE271 Static Pressure Transducer plugs directly into the VCCX2 could cause voltage drop problems. Controller’s Static Pressure port.

  • Page 36: Supply Fan Vfd Signal Or Bypass Damper Actuator

    Zone VCCX2 CONTROLLER WIRING Zone Supply Fan VFD or Bypass Damper Actuator Wiring Supply Fan VFD Signal or Bypass CAUTION: Variable Frequency Drive units can cause large Damper Actuator transient noise spikes which can cause interference to be propagated on other electronic equipment. Use shielded wire wherever possible and route all sensor and controller wiring The Supply Fan VFD Signal is a user-adjustable signal with a range away from the Variable Frequency Drive and the HVAC Unit...

  • Page 37: Economizer Damper Actuator

    VCCX2 CONTROLLER WIRING Economizer Actuator or WSE Actuator Wiring Economizer Damper Actuator Waterside Economizer (WSE) Valve The Economizer Damper Actuator signal voltage output (using AO2) The Waterside Economizer Valve must be wired as shown in Figure is user-adjustable, but must be set to 2-10 VDC for this application. 21 below for proper operation.

  • Page 38: Modulating Heating Device

    Zone VCCX2 CONTROLLER WIRING Zone Modulating Heating Device Wiring Modulating Heating Device See Figure 22, below for detailed wiring of the Modulating Heating Device. The Modulating Heating Device signal voltage output is a user- adjustable signal with a range of 0-10 VDC from AO3 when WARNING: It is very important to be certain that all wiring is programming the controller.

  • Page 39: Building Pressure Control Output

    VCCX2 CONTROLLER WIRING Building Pressure Control Output Wiring Building Pressure Control Output used. When using the OA damper for Reverse Building Pressure Control, the output signal must be confi gured for Reverse Acting operation. A Building Pressure Sensor connected to AI5 on the The Building Pressure Control Output is a 0-10 VDC or 2-10 VDC VCCX2 Controller is used to sense and control the signal to the signal sent from the VCCX2 Controller.

  • Page 40: Vcc-X Em1 Expansion Module Input Wiring

    Loss of power to the expansion module will cause the controller to become inoperative until power is restored to the expansion module. VCC-X EM1 Expansion Module Entering Water www.aaon.com Temperature Sensor (Strap On) www.orioncontrols.com EXHAUST DUCT STATIC...
  • Page 41 VCC-X EM1 EXPANSION MODULE WIRING VCC-X EM1 Entering Water Temperature Sensor Wiring Notes: 1.)Sensor Should Be Mounted At Location Along Pipe Length That Best Represents Desired Temperature Reading. Butt Splice Or Wire Nut Wire Leads And Extend Wire To Controller Terminals. Connect 2.)Sensing Element Shown One Wire Lead To Entering Water Mounted To Top Of Pipe.

  • Page 42: Exhaust Duct Static Pressure Sensor

    Loss of power to the expansion module will cause the controller to become inoperative until power is restored to the expansion module. VCC-X EM1 Expansion Module www.aaon.com www.orioncontrols.com Connect FRP Tubing To EXHAUST DUCT CAUTION: It Is Strongly...

  • Page 43: Vcc-X Em1 Expansion Module Output Wiring

    CONFIGURABLE RELAY OUTPUT #4 CONFIGURABLE RELAY OUTPUT #5 VCC-X Expansion Module 1 24 VAC POWER Orion No.:OE336-23-VCCXEM1 Belimo Actuator Wiring Shown. Consult Factory AAON No.: V53990 For Other Manufacturer ANALOG OUTPUT TERMINALS Wiring Instructions. CHILLED WATER RETURN DAMPER RETURN BYPASS...

  • Page 44: Chilled Water

    VCC-X EM1 Expansion Module RELAY OUTPUT TERMINALS CHILLED WATER VALVE ACTUATOR VCC-X Expansion Module 1 Orion No.: OE336-23-VCCXEM1 AAON No.: V53990 ANALOG OUTPUT TERMINALS CHILLED WATER RETURN DAMPER RETURN BYPASS AOUT1 AOUT4 PWM – PWM +...

  • Page 45: Return Air Bypass

    Return Air Bypass The output is confi gured for 2-10 VDC direct acting operation. See Figure 29, below for detailed wiring of the Return Air Bypass and The VCCX2 Controller can be confi gured for AAON ® Return Air Return Air Damper Actuators.

  • Page 46: E-Bus 12 Relay Expansion Module Wiring

    12-RELAY E-BUS EXPANSION MODULE WIRING 12-Relay E-BUS Expansion Module Wiring E-BUS 12-Relay Expansion Module The expansion modules can be used individually or together to provide the required inputs and outputs for your specifi c applications. The E-BUS 12-Relay Expansion Module ( OE358-23E-12R-A) provides for 12 Dry Contact Confi...

  • Page 47: Ebtron ® , Greentrol™, And Paragon Air Flow Measurement Digital Transmitter

    MODBUS RTU transmitters are compatible with the VCCX2 Controller. No other series of transmitters NOTE: will work for this application. Contact AAON Con- If using multiple E-BUS Sensors or Modules, the trols for information on other airfl ow station options.

  • Page 48: Rsmv Input Wiring

    REFRIGERANT SYSTEM MODULE WIRING RSMV Inputs & Outputs Wiring Refrigerant System Module for VFD The RSMV Module provides the following: Compressors Wiring • Modulates the Compressors to satisfy the Suction Coil (Saturated) Temperature. Th e Suction Coil (Satu- rated) Temperature Setpoint is reset by the VCCX2 The OE370-26-RSMV Refrigerant System Module for VFD Controller to maintain the Supply Air Temperature Compressors (RSMV) monitors and controls one tandem...

  • Page 49: Rsmv Output Wiring

    REFRIGERANT SYSTEM MODULE WIRING RSMV Inputs & Outputs Wiring Suction Pressure Sensor Wiring CAUTION: The Shraeder port used for installation of the The OE275-01 Suction Pressure Transducer must be wired as shown suction pressure transducer should be located in a vertical in Figure 33, below.

  • Page 50: Rsmv-Hp Input Wiring

    REFRIGERANT SYSTEM MODULE WIRING RSMV-HP Inputs Wiring Refrigerant System Module for VFD Suction Pressure Sensor Wiring Compressors - Heat Pump Wiring Th e OE275-01 Suction Pressure Transducer must be wired as shown in Figure 34, below. It is required for all compressorized VCCX2 Th e OE370-26-RSMV-HP Refrigerant System Module for VFD applications.

  • Page 51: Rsmv-Hp Output Wiring

    REFRIGERANT SYSTEM MODULE WIRING RSMV-HP Outputs Wiring Coil Temperature Sensors CAUTION: Th e Shraeder port used for installation of the Th e Coil Temperature Sensors are used to measure Coil Temperature suction pressure transducer should be located in a vertical aft er each evaporator coil line.

  • Page 52: Rsmd Input Wiring

    REFRIGERANT SYSTEM MODULE WIRING RSMD Inputs Wiring Refrigerant System Module for Digital Suction Pressure Sensor Wiring Compressors Wiring The OE275-01 Suction Pressure Transducers must be wired as shown in Figure 36, below. It is typically required for all VCCX2 The OE370-26-RSMD Refrigerant System Module for Digital applications.

  • Page 53: Rsmd Output Wiring

    DIGITAL MENU ENTER COMPRESSOR 1 www.aaon.com UNLOAD OE370-26-RSMD CONDENSER RSM FOR DIGITAL DOWN COMPRESSORS SIGNAL 1 AAON No.: V61520 +5 V SUCTION PRESSURE 1 SP-1 24 VAC RELAY CONTACT RELAY OUTPUT SENSOR TERMINALS RATING IS 1 AMP DIGITAL +5 V...

  • Page 54: Rsmsd Input Wiring

    REFRIGERANT SYSTEM MODULE WIRING RSMSD Inputs Wiring RSMSD Wiring Suction Pressure Sensor Wiring Th e RSMSD monitors and controls the refrigeration circuit of a single Th e OE275-01 Suction Pressure Transducer must be wired as shown digital compressor. Th e module is designed for R410-A refrigerant. in Figure 2, below.

  • Page 55: Rsmsd Output Wiring

    REFRIGERANT SYSTEM MODULE WIRING RSMSD Outputs Wiring Compressor Discharge Sensor CAUTION: Th e Shraeder port used for installation of the Th e Digital Compressor Discharge Temperature Sensor monitors suction pressure transducer should be located in a vertical the discharge temperature from the Digital Compressor to protect position of the suction line to prevent refrigerant oil from against overheating.

  • Page 56: Mhgrv-X Controller

    If the communication is interrupted between the MHGRV-X Controller and the VCCX2 Controller, the MHGRV-X controller will revert to stand-alone The OE377-26-00059 MHGRV-X Controller (AAON part number operation. V12100) is designed to control a Modulating Hot Gas Reheat Valve to maintain a desired Supply Air Temperature and Dehumidifi cation For more information, refer to the MHGRV-X Controller Technical setpoint.

  • Page 57: Modgas-X Controller

    High Limit Temperature Setpoint  If the communication is interrupted between the The OE377-26-00058 MODGAS-X Controller (AAON Part No. MODGAS-X Controller and the VCCX2 Controller, V12090) is designed to modulate up to (2) gas valves to maintain the MODGAS-X controller will revert to stand-alone a desired Discharge Air Temperature.

  • Page 58: Preheat-X Controller

    PREHEAT-X Controller Wiring  Leaving Air Temperature Status  Entering Air Temperature Status The OE377-26-00061 PREHEAT-X Controller (AAON Part No.  Alarm Status V48510) is designed to control fi xed stages of Preheat and optional  modulating Preheat to maintain a desired Preheat Leaving Air If the communication is interrupted between the Temperature Setpoint.

  • Page 59: Start-Up & Commissioning

    START-UP & COMMISSIONING Powering Up & Confi guration Before Applying Power Any of these devices or a combination of them can be used to access the status, confi guration, and setpoints of any controller on your In order to have a trouble free start-up, it is important to follow a communications loop.

  • Page 60: Inputs & Outputs

    Zone INPUTS & OUTPUTS Zone VCCX2 Controller & EM1 Module Input/Output Maps Input/Output Map NOTE: The following E-BUS sensors and modules are avail- able to connect to the VCCX2 Controller via E-BUS ports or E-BUS Expansion Modules: See Table 2 for VCCX2 Controller Input/Outputs and Table 3 for VCC-X EM1 Inputs/Outputs.

  • Page 61: Vccx2 Controller Inputs & Outputs

    INPUTS & OUTPUTS VCCX2 Controller Inputs VCCX2 Controller Inputs AI6 - Remote Supply Air Temperature Reset Signal If a Remote SAT Reset Signal is confi gured as the Reset Source, this AI1 - Space Temperature Sensor Input input can be used to accept a confi gurable voltage input between 0-10 The Space Temperature Sensor will initiate Occupied Heating and VDC (Direct or Reverse Acting) to reset the SAT Setpoint.
  • Page 62 Zone INPUTS & OUTPUTS Zone VCCX2 Controller Inputs & Outputs This output is also used to control the Outdoor Air Damper based on NOTE: If Remote Forced operation is used, it must apply to an Outdoor Air Flow Setpoint if using an Outdoor Airfl ow Monitoring Cooling, Heating, and Dehumidifi...

  • Page 63: Vcc-X Em1 Inputs & Outputs

    Return Air Bypass Damper Actuator in Sensor modular connector input used for Exhaust Duct Static conjunction with a Return Air Damper Actuator for AAON ® Pressure Control. This Static Pressure reading is used to control or DPAC control applications.

  • Page 64: Sequence Of Operations

    Zone SEQUENCE OF OPERATIONS Zone Supply Fan & Occupied/Unoccupied Operation Supply Fan Operation control of 100% or high percentage Outdoor Air units by tempering the air during the Space Vent Mode of operation to Any time the Supply Fan is requested to start, a 1 minute minimum prevent dumping of hot or cold air into the space.

  • Page 65: Cooling Mode

    SEQUENCE OF OPERATIONS Cooling Mode HVAC Modes of Operation Setpoint. Each RSM will independently control its compressors to achieve the most effi cient cooling control. Each stage must meet its Minimum Off Time (adj.) before it is allowed to energize, and There are 8 possible HVAC Modes of Operation.

  • Page 66: Economizer Operation (Standard)

    Zone SEQUENCE OF OPERATIONS Zone Economizer Operation & Dehumidifi cation Economizer Operation (Standard) Dehumidifi cation Mode On VAV, CAV, Single Zone VAV, and High Percentage Outdoor Units NOTE: For Waterside Economizer Operation, see page 76. with Space Temperature Control, the Dehumidifi cation Mode is initiated when the Indoor Humidity rises above the Indoor Humidity Economizer operation is enabled when the Outdoor Air (OA) drybulb, High Reset Source Setpoint.
  • Page 67 ® See the appropriate RSM Technical Guide for a more detailed to avoid warranty and/or rating problems. AAON assumes no sequence of operation. liability for any Simultaneous Heating and Cooling application if a SPA is not obtained from the AAON Factory at the time ®...

  • Page 68: Heating Mode

    Zone SEQUENCE OF OPERATIONS Zone Heating Mode of closing the Return Air Damper more as the RAB Damper opens Period is based on the Modulating Heating Proportional Window. is to allow more air to bypass the evaporator coil through the RAB The larger the Modulating Heating Proportional Window, the smaller Damper.

  • Page 69: Ventilation Mode

    SEQUENCE OF OPERATIONS Ventilation Mode, VCCX2 Remote Contact, IAQ Control, Active Supply Air Heating Setpoint. If there are additional stages of Sensors with Setpoint Slide Adjust can be programmed to allow heat, they will stage up as described, with the Primary Heat Source Space Setpoint adjustment of up to ±...

  • Page 70: Morning Cool-Down Mode Operation

    Zone SEQUENCE OF OPERATIONS Zone Morning Warm-Up & Cool-Down & Single Zone VAV Morning Warm-Up Mode Operation Single Zone VAV Single Zone VAV is an application where the Supply Fan VFD NOTE: Morning Warm-Up can be confi gured for any appli- modulates to maintain the Space Temperature Setpoint while heating cation but should not be used on 100% Outdoor Air or cooling is modulated to maintain the Supply Air Setpoint.

  • Page 71: Airfl Ow Monitoring

    Heat Wheel Relay for 2 minutes. Before the Heat Wheel Relay disables, a 2-minute delay will occur while the Economizer closes to GreenTrol GF series of airfl ow station. Contact AAON Controls a 10% position to allow the return air to have maximum defrost eff ect for information on other airflow station options.

  • Page 72: Duct Static Pressure Control

    The Exhaust Fan Relay is energized whenever the Modulating Signal is above 0%. Duct Static Setpoint Reset Reverse Acting Building Pressure Control If the VCCX2 Controller is being used with AAON VAV box • Outdoor Air Damper —If this option is configured,...

  • Page 73: Exhaust Duct Static Pressure Control Of Exhaust Fan

    Night Humidity control, the VCCX2 when using this option. Contact AAON if you have Controller will use the Space Humidity Setpoint for questions. If this option is selected, the Supply Fan VFD unoccupied Dehumidifi...

  • Page 74: Vav Operation With Outdoor Air Temperature Control

    Zone SEQUENCE OF OPERATIONS Zone VAV w/Supply Air Tempering, Air to Air Heat Pump As long as there is a Space Temperature call for Cooling or Heating With this confi guration, as the OA Temperature rises above the Hood or if there is a Space Dehumidifi cation call, the unit will remain On Cooling Setpoint, the unit will be in Cooling Mode, controlling under Space Control.

  • Page 75: Heat Pump Adaptive Defrost Operation

    SEQUENCE OF OPERATIONS Heat Pump Standard Defrost, WSHP, EXV & Head Pressure Water Source Heat Pump Operation When the OAT is below the OAT Compressor Heating Lockout, Compressor Heat is locked out. Auxiliary Heat will then be the primary heat and can be supplemented with stage(s) of Emergency Cooling Mode will operate in the same manner as described in the Heat (if available).

  • Page 76: Waterside Economizer Operation

    Zone SEQUENCE OF OPERATIONS Zone WSE, OA Lockouts & Temperature Protection Waterside Economizer (WSE) Operation Temperature Protection If the unit is equipped with a Waterside Economizer (WSE), the Temperature Protection is activated when the Supply Air Temperature following describes the operation of the WSE Valve, the WSE Bypass (SAT) rises above the High Cutoff...

  • Page 77: Alarm Detection And Reporting

    SEQUENCE OF OPERATIONS Alarm Detection & Sensor Failure Alarms Alarm Detection and Reporting Sensor Failure Alarms The VCCX2 Controller continuously performs self diagnostics Supply Air Temperature Sensor Failure Alarm during normal operation to determine if any operating failures have The Supply Air Temperature Sensor Failure Alarm is generated occurred.

  • Page 78: Mechanical Failure Alarms

    Zone SEQUENCE OF OPERATIONS Zone Mechanical Failure, Failure Mode & Title 24 Economizer Alarms Missing Expansion Module Alarm Emergency Shutdown Alarm Preheat-X Board Missing A 24 VAC wet contact input is available to be used when a N.C. EM1 Expansion Missing Smoke Detector, Firestat, or other shutdown condition occurs.

  • Page 79: Trend Logging

    SEQUENCE OF OPERATIONS Trend Logging Economizer Is Economizing When It Should Not Modulating Heat Signal Building Pressure Relief VFD Signal Economizer is not enabled but the feedback signal indicates a position Modulating Cooling Signal more open than the minimum. Compressor Alarms Economizer Damper Not Modulating Expansion Board Alarms Economizer is enabled but not within 10% of desired position within...

  • Page 80: Troubleshooting

    Zone TROUBLESHOOTING Zone VCCX2 Controller & EM1 LED Diagnostics VCCX2 Controller LEDs B inary Input LEDs   BIN1 - This green LED will light up when the Proof of Flow contact The VCCX2 Controller is equipped with LEDs that can be used to is closed.

  • Page 81: Vccx2 Controller & Vcc-X Em1 Expansion Module Led Locations

    1002 1002 VCC-X Expansion Module 1 10uF TEMPERATURE SENSOR INPUT Orion No.: OE336-23-VCCXEM1 TERMINALS PWR LED 1002 ENTERING WATER 1002 AAON No.: V53990 ALARM LED 3650 10uF NOT USED 3650 ALARM ECONO FEEDBACK STAT LED TEMP SENSOR INPUTS 3650 STAT...

  • Page 82: Space, Outdoor Air, Or Return Air Temperature Sensor Testing

    Zone TROUBLESHOOTING Zone Temperature Sensor Testing Space, Supply Air, Outdoor Air or Temperature – Resistance – Voltage for Type Return Air Temperature Sensor III 10 K Ohm Thermistor Sensors Testing Temp Temp Resistance Voltage @ Input (VDC) (ºF) (ºC) (Ohms) The following sensor voltage and resistance table is provided to aid 23.33 10625...

  • Page 83: Oe271 & Oe258-01 Pressure Sensor Testing

    TROUBLESHOOTING OE271 & OE258-01 Pressure Sensor Testing OE271 Pressure Sensor Testing OE258-01 Pressure Sensor Testing The table below is used to troubleshoot the OE271 Duct Static The table below is used to troubleshoot the OE258-01 Building Pressure Sensors. Pressure Sensors. OE271 Duct Static Pressure Sensor OE258-01 Building Pressure Sensor Voltage...

  • Page 84: Appendix A - System Configurations

    Controllers on your job. With this system, you simply connect VCCX2 Controller only), connected together on an Interconnected the controllers together using AAON communications wire or System (multiple VCCX2 Controllers only) or connected together 18-gauge, 2-conductor twisted pair with shield wire (Belden #82760 on a Network System (multiple VCCX2 Controllers, VAV/Zone or equivalent).

  • Page 85: Service Tool

    APPENDIX A - SYSTEM CONFIGURATIONS Stand-Alone System Layout Operator Interfaces Modular System Manager SD Modular Service Tool SD System Manager TS-L Computer, CommLink 5, and Prism 2 Software Figure 47: Typical Stand-Alone System Layout VCCX2 Controller Technical Guide...
  • Page 86 Zone APPENDIX A - SYSTEM CONFIGURATIONS Zone Interconnected System Layout VCCX2 Controller Technical Guide...
  • Page 87 APPENDIX A - SYSTEM CONFIGURATIONS Networked System Single Loop Layout VCCX2 Controller Technical Guide...

  • Page 88: Appendix B - Vccx2 Lcd Display Screens

    APPENDIX B - VCCX2 LCD SCREENS Navigation Keys LCD Display Screen & Navigation NAVIGATION KEY FUNCTION Keys MENU Use the MENU key to move through screens within Main Menu categories and The LCD display screens and buttons allow you to view status return to the Main Menu while at other and alarms, enable force modes, and make BACnet confi...

  • Page 89: Main Screens Map

    APPENDIX B - VCCX2 LCD SCREENS Main Screens Map Main Screens Map Output Override Refer to the following map when navigating through the Main Screens. The fi rst screen is an initialization screen. To scroll through <MENU> the rest of the screens, press the button.
  • Page 90 APPENDIX B - VCCX2 LCD SCREENS Settings Screens Settings Screens Refer to the following map when navigating through the Settings DEVICEID Screens. From the Settings Screen, press <ENTER> to scroll through XXXXXXX the screens. Settings ® BACnet - CURRENT DEVICE ID A Device ID of up to 7 digits can be entered.
  • Page 91 APPENDIX B - VCCX2 LCD SCREENS Status Screens Status Screens Refer to the following map when navigating through the Status Spc RH <ENTER> Screens. From the Status Screen, press to scroll through X.X % the screens. Status SPACE HUMIDITY 0.00% - 100% OPER MODE Sat Temp UNOCCUPY...
  • Page 92 APPENDIX B - VCCX2 LCD SCREENS Alarm Screens Alarm Screens FAN POF FAILURE Proof of Flow Interlock Alarm DIRTY FILTER Dirty Filter Alarm If there are no Alarms, the Alarm Screen will display “No Alarms.” EMERG SHUTDOWN Emergency Shutdown Alarm If there are alarms present, the screen will display, “Alarms.”...

  • Page 93: Supply Fan Vfd

    APPENDIX B - VCCX2 LCD SCREENS Output Override Screens Output Override Screens Refer to the following map when navigating through the Output Override Screens. From the Output Override Screen, press Exhaust <ENTER> -1.0, 0.0-10.0 Output Override EXHAUST FAN 0.0 to 10.0 = Active Force Mode. Press the <UP>...
  • Page 94 APPENDIX B - VCCX2 LCD SCREENS Air Balance Screens & Factory Test Mode Screen Air Balance Screens Refer to the following map when navigating through the Air Balance Max Exh <ENTER> Screens. From the Air Balance Screen, press 10.0 vdc MAXIMUM EXHAUST VOLTAGE Balance 0.0 to 10.0 vdc...

  • Page 95: Appendix C - Vccx2 Bacnet ® Connection To Ms/Tp Network, Bacnet Parameters & Pics Statement

    See Page 90 For Details. “T” TO “T” www.aaon.com www.orioncontrols.com “SHLD” TO “SHLD” VCCX2 CONTROLLER AAON No.: V87900 Orion No.: OE338-26B-VCCX2 BINARY INPUTS RELAY CONTACT BI1 = PROOF OF AIRFLOW RATING IS 1 AMP = DIRTY FILTER MAX @ 24 VAC...
  • Page 96 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller ® NOTE: Objects labeled AI and BI are read-only. Objects Parameter Object Description Limits labeled AV are read/writeable. The only Sensor values that can be written to are AV points 72 & 73 and 76 Outdoor Air AI: 16 Current value of the...
  • Page 97 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits Modulating AI: 35 Current percentage of the A2 Suction AI:55 Current Compressor A2 Heat Position...
  • Page 98 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits B2 Suction AI:74 Current Compressor B2 B2 Discharge AI:92 Current Compressor B2 Pressure...
  • Page 99 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits C1 Expan- AI:112 Current position of D1 Condens- AI:131 Current Compressor D1 sion Valve...
  • Page 100 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Parameter Object Description Limits Limits Occupied AV: 1 If the control temperature 1°F 110°F Mode Select AV:7...
  • Page 101 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits Warm-Up AV:16 If Morning Warm-Up is 50°F 90°F Economizer AV:27 The economizer is...

  • Page 102: Confi Guration

    APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Parameter Object Description Limits Limits Low Ambient AV:36 Temperature at which the -30°F 70°F Minimum AV:45...

  • Page 103: Confi Guring

    APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits Cooling AV:63 Head Pressure Setpoint in Indoor AV: 53 On indoor controlled (non Mode Head the Cooling Mode.
  • Page 104 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits Indoor RH AV: 74 Reserved Maximum AV: 86 As the most open VAV 0.01 3.00...
  • Page 105 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits Mechanical BI: 22 Compressor Relays are Fan Proof BI:6 Proof of Airfl...
  • Page 106 APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits Low Supply BI: 35 The Supply Air has fallen On Board BI:49 Current Status of...

  • Page 107: Alarms

    APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits 12 Relay BI:67 Current Status of Refrigerant BI:85 Current Status of Expansion Confi...

  • Page 108: Vccx2 Bacnet

    APPENDIX C - VCCX2 BACnet ® VCCX2 BACnet Parameters ® BACnet Properties for the VCCX2 Controller BACnet Properties for the VCCX2 Controller ® ® Parameter Object Description Limits Parameter Object Description Limits BI:104 Indicates an RSM alarm is Refrigerant BI:123 Current Status of Compressor present on the C2 circuit.

  • Page 109: Vccx2 Controller

    ® BACnet PICS ® BACnet Protocol Implementation Conformance Statement ® Date: December 2017 Vendor: AAON, Inc. Product: VCCX2 Controller Product Model Number: OE338-26B-VCCX2 Product Version: 1.13 Product Description: HVAC Unit Controller BACnet Protocol Revision: Revision 12 (ANSI/ASHRAE Standard 135-2010) BACnet Protocol Implementation Conformance Statement ®...

  • Page 110: Index

    Building Static Pressure Sensor Input..61 14 Holiday Event Scheduling..6 Building Static Pressure/Voltage Chart..83 Bypass Damper Control..67 Bypass Damper Actuator Wiring..36 AAON MHGRV-X Modulating Hot Gas Reheat Controller..6,56 AAON MODGAS-X Modulating Natural Gas Controller..6,57 CAV/MUA Dual Mode..72 Actuators Chilled Water Valve..44 Economizer Damper..37...
  • Page 111 INDEX ESC Key, Defi ned..88 Dimensions 12 Relay E-BUS Module..19 Exhaust Airfl ow Alarm..77 Refrigerant System Module VFD..17 Exhaust Duct Static Pressure Control of Exhaust Fan..72 VCC-X EM1 Expansion Module..18 Exhaust Fan..72 VCCX2 Controller..16 Exhaust Fan Relay, Description..63 Exhaust Fan VFD..72 Direct Acting Building Pressure Control..72 Exhaust Fan VFD Signal..62 Direct Acting Operation, AO1..38...
  • Page 112 INDEX Networked System..84 IAQ (CO ) Economizer Reset..6 Networked System Layout..87 IAQ (CO ) Control Operation..69 Inputs, VCCX2 Controller..61 Input Wiring, VCCX2 Controller..22 Interconnected System..84, 86 Internal Week Schedule..64 OAT Compressor Lockout..76 Internet/LAN Connection..13 Occupied Active Relay Description..63 IP Module Kit..13 Occupied Operation Mode..64 OE210 - OE213..10,27 OE217-02 E-BUS Digital Room Sensor..10, 24...
  • Page 113 INDEX OS HB LED..80 Dehumidifi cation..67 Outdoor Air Damper..72 Occupied Mode Input..61 Outdoor Airfl ow Alarm..77 Occupied Signal..64 Outdoor Air (OA) Drybulb Temperature..66 Remote Forced Cooling Mode Input..62 Outdoor Air Temperature & Humidity Sensor..11 Remote Forced Dehumidifi cation Input..62 Outdoor Air Temperature & Humidity Sensor Wiring..33 Remote Forced Heating Mode Input..62 Outdoor Air Temperature Sensor..12 Remote Forced Occupied Mode Input..61...
  • Page 114 INDEX Service Tool..59 Settings Screens, VCCX2..90 SIG1..30 T1..61,63 Single Zone VAV..70 Tables Sizing Transformer..59 User-Confi gurable Relay Outputs..63 Slide Adjust..27,61 VCCX2 Controller Inputs & Outputs..60 Smoke Detector Input..6 Temperature Range Space Sensor Operation..69 For VCCX2 Controller..21 Space Temperature..60 Temperature/Resistance for Type III 10K Ohm Thermistor Space Temperature Sensor Sensors..82 Diagram..27...
  • Page 115 INDEX Wiring Features and Applications..6 12-Relay Expansion Module..46 Inputs..22,23,61 18-gauge..21 Input Wiring..22 24-gauge..21 LEDs..80 24 VAC-to-24 VAC..59 Outdoor Air Temperature Sensor Input..61 Building Pressure Control Output..39 Output Wiring..23 Building Static Pressure Sensor..30 Programming..59 Chilled Water Valve Actuator..44 RA CO Sensor Wiring..26 Duct Mounted CO Sensor..26 RH Level..21...
  • Page 116 PARTS: For replacement parts please contact your local AAON Representative. 2425 So. Yukon Ave • Tulsa, OK • 74107-2728 Ph: (918) 583-2266 • Fax: (918) 583-6094 AAON Part No.: G039840, Rev. 01K ® Printed in the USA • © April 2019 AAON • All Rights Reserved...

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