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CARRIER CORPORATION ©2011
A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-435-01 · 6/20/2011
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Table of Contents
Related Manuals for Carrier VVT Zone
Summary of Contents for Carrier VVT Zone
- Page 1 CARRIER CORPORATION ©2011 A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-435-01 · 6/20/2011...
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Page 3: Table Of Contents
To wire the controller for power ......................9 To address the VVT Zone Controller ........................9 Wiring the VVT Zone Controller to the MS/TP network ................10 Wiring specifications ........................... 10 To wire the controller to the network ....................10 Wiring sensors to inputs ........................... - Page 4 Table of Contents Start-up ..................................29 Configuring the VVT Zone Controller's properties ..................29 Unit Configuration properties ......................30 Setpoint properties..........................30 Service Configuration properties ......................33 Linkage properties ..........................34 Performing system checkout ........................... 35 Commissioning the VVT Zone Controller ......................36 Balancing the system ............................
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Page 5: Introduction
Buildings with diverse loading conditions can be supported by controlling the air source heating and cooling sources or supplemental heat. The VVT Zone Controller provides dedicated control functions for single duct and fan box terminals with modulating heat, up to 2 stages of ducted heat, or combination baseboard and ducted heat. - Page 6 Motor Access NOTE This document gives instructions for field-installation of a VVT Zone Controller in an i-Vu Open Control System. However, VVT Zone Controllers are available factory-mounted to Carrier’s round and rectangular dampers. Damper assemblies have an integrated duct temperature sensor.
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Page 7: Specifications
BT485 connector You attach a BT485 (not included) to a controller at the beginning and end of a network segment to add bias and to terminate a network segment. VVT Zone Controller... - Page 8 1.7 lbs (0.77 kg) BACnet support Conforms to the Advanced Application Controller (B-AAC) Standard Device Profile as defined in ANSI/ASHRAE Standard 135-2004 (BACnet) Annex L Listed by UL-916 (PAZX), cUL-916 (PAZX7), FCC Part 15-Subpart B-Class A, CE EN50082-1997 VVT Zone Controller...
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Page 9: Safety Considerations
Disconnect all power to the unit before performing maintenance or service. Unit may automatically start if power is not disconnected. Follow all local, state, and federal laws regarding disposal of equipment containing hazardous materials such as mercury contactors. VVT Zone Controller... -
Page 10: Installation
Installation Installation To install the VVT Zone Controller: Mount the controller to the VVT box. (page 7) Wire the controller for power. (page 8) Set the controller's address. (page 9) Wire the controller to the MS/TP network. (page 10) Wire sensor(s) to the controller. (page 11) Wire equipment to the controller's outputs. -
Page 11: Mounting The Vvt Zone Controller
Mounting the VVT Zone Controller Mount the VVT Zone Controller on the zone terminal’s damper actuator shaft. For service access, allow at least 1 foot (.3 m) of clearance between the front of the controller and adjacent surfaces. Allow 1 ft. (.3 m) clearance for service access 2.5 in. -
Page 12: Wiring The Vvt Zone Controller For Power
Wiring the VVT Zone Controller for power The VVT Zone Controller is powered by a Class 2 power source. Take appropriate isolation measures when mounting it in a control panel where non-Class 2 circuits are present. Carrier controllers can share a power supply as long as you: •... -
Page 13: To Wire The Controller For Power
Verify that the Power LED is on and the Run LED is blinking. To address the VVT Zone Controller You must give the VVT Zone Controller an address that is unique on the network. You can address the VVT Zone Controller before or after you wire it for power. -
Page 14: Wiring The Vvt Zone Controller To The Ms/Tp Network
Installation Wiring the VVT Zone Controller to the MS/TP network The VVT Zone Controller communicates using BACnet on an MS/TP network segment communications at 9600 bps, 19.2 kbps, 38.4 kbps, or 76.8 kbps. Wire the controllers on an MS/TP network segment in a daisy-chain configuration. -
Page 15: Wiring Sensors To Inputs
Set DIP switches 1 and 2 to the appropriate baud rate. See the MSTP baud diagram on the VVT Zone Controller. The default baud rate is 76.8 kbps. NOTE Use the same baud rate for all controllers on the network segment. -
Page 16: Wiring An Spt Sensor
• Local access port You wire SPT sensors to the VVT Zone Controller's Rnet port. An Rnet can consist of any of the following combinations of devices wired in a daisy-chain configuration: • 1 SPT Plus or SPT Pro •... -
Page 17: To Wire The Spt Sensor To The Controller
.25 in. Inner insulation (.6 cm) Wire each terminal on the sensor to the same terminal on the controller. See diagram below. NOTE Carrier recommends that you use the following Rnet wiring scheme: Connect this wire... To this terminal... +12V... -
Page 18: Wiring A T55 Space Temperature Sensor
Wire the sensor to the controller, attaching the red wire to the T55 (Opt) terminal and the black wire to the Gnd terminal. See diagram below. Verify that the T55 (Opt) jumper is in the Thermistor position. VVT Zone Controller... -
Page 19: Wiring A Supply Air Temperature Sensor
Wiring a Supply Air Temperature sensor Part #33ZCSENSAT The VVT Zone Controller requires a temperature sensor installed in the supply air stream. The Supply Air Temperature (SAT) sensor is used when the zone controller is equipped with ducted heating. Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) -
Page 20: Wiring A Duct Air Temperature Sensor
Part #33ZCSENDAT The Duct Air Temperature Sensor (DAT) monitors the supply air temperature and is required for cooling and heating air source applications on non-Carrier dampers and for stand-alone operation without ducted reheat. Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) -
Page 21: Wiring A Co2 Sensor
To wire the CO2 sensor to the controller #33ZCSPTCO2 Wire the sensor to the controller. See appropriate diagram below. Verify that the RH/CO2 jumper is set to 0-5Vdc on the VVT Zone Controller. Verify the J7 jumper on the sensor is set to 0-5Vdc. VVT Zone Controller... - Page 22 Wire the sensor to the controller. See appropriate diagram below. Install a field supplied 250 Ohm 1/4 watt 2% tolerance resistor across the controller's RH/CO2 and Gnd terminals. Verify that the RH/CO2 jumper is set to 0-5Vdc on the VVT Zone Controller. VVT Zone Controller...
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Page 23: Wiring A Relative Humidity Sensor
NOTE Do not use a relative humidity sensor and CO sensor on the same zone controller. Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 meters) 22 AWG, shielded Maximum length: 500 feet (152 meters) VVT Zone Controller... -
Page 24: To Wire The Rh Sensor To The Controller
Set SW3 on the sensor as shown below. Wiring a remote occupancy sensor You can wire a normally open or normally closed dry-contact occupancy sensor to the VVT Zone Controller's REMOTE input as shown below. The controller supplies the 24 Vac needed for the input. -
Page 25: Wiring Specifications
Fan box combination base board and ducted heat (page 26) Fan box 2-stage electric heat (page 26) Disconnect electrical power to the VVT Zone Controller before wiring it. Failure to follow this warning could cause electrical shock, personal injury, or damage to the controller. -
Page 26: Wiring Diagram Legend
Wiring diagram legend Ground Hot water valve sensor Not used REMOTE Remote occupancy sensor Relative humidity sensor Supply air temperature sensor Space temperature sensor T55 (OPT) Alternate space temperature sensor – – – Field-supplied wiring Single duct only VVT Zone Controller... -
Page 27: Single Duct 2-Position Hot Water
Single duct 2-position hot water Single duct modulating hot water VVT Zone Controller... -
Page 28: Single Duct Combination Base Board And Ducted Heat
Installation Single duct combination base board and ducted heat Single duct 2-stage electric heat VVT Zone Controller... -
Page 29: Fan Box 2-Position Hot Water
Fan box 2-position hot water Fan box modulating hot water - ducted or baseboard VVT Zone Controller... -
Page 30: Fan Box Combination Baseboard And Ducted Heat
Installation Fan box combination baseboard and ducted heat Fan box 2-stage electric heat VVT Zone Controller... -
Page 31: Wiring Field-Supplied Actuators To The Analog Output
You can wire a high-torque actuator or parallel actuators to the controller's 0–10 Vdc analog output. High-torque actuators You can wire one of the following Belimo actuators to the VVT Zone Controller's analog output instead of using the controller's built-in, 35 in.-lb actuator. -
Page 32: Linked Actuators
Installation Linked actuators You can wire up to 4 of the following Belimo actuators to the VVT Zone Controller's analog output. Use like actuators so that travel times and other parameters coincide. LMX24-MFT P-10028 45 in.-lb actuator with 0–10 Vdc control NMX24-MFT P-10028 90 in.-lb actuator with 0–10 Vdc control... -
Page 33: Start-Up
Start-up To start up the VVT Zone Controller, you need one of the following user interfaces. These items let you access the controller information, read sensor values, and test the controller. This interface... Provides a... i-Vu Open software Permanent interface... -
Page 34: Unit Configuration Properties
Cooling Design Temp – The geographically-based outdoor air temperature at which the 100°F cooling system must run constantly to maintain comfort. This information is available in -100 to 150°F ASHRAE publications and most design references. VVT Zone Controller... - Page 35 0 to 120°F Heating setpoint adjusted by any offset that may be in effect. Cooling – (Occupied or Unoccupied, depending on mode) The current programmed 0 to 120°F Cooling setpoint adjusted by any offset that may be in effect. VVT Zone Controller...
- Page 36 This value should be set to approximately 75 ppm above the outdoor air CO2 level. 1050ppm DCV Max Ctrl Setpoint – The value that the CO level must exceed for the IAQ function to control the damper to its DCV Max Vent Damper Pos 0 to 5000ppm VVT Zone Controller...
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Page 37: Service Configuration Properties
Fan powered terminals are limited to no more than 2 stages. One stage Two stages Three stages Valve Type – Two Position hot water only - The hot water valve's position with no power applied to the valve. NC/NO (normally closed/normally open) VVT Zone Controller... -
Page 38: Linkage Properties
Linkage settings as the defaults are for a slave. After you define the properties, the VVT Master immediately begins to send zone data to the air source and receive information from the air source. VVT Zone Controller... -
Page 39: Performing System Checkout
Verify that the area around the air source is clear of construction dirt and debris. 10 Verify that final filters are installed in the air handler(s). Dust and debris can adversely affect system operation. 11 Verify that the space sensor and all optional sensors are reading correctly. VVT Zone Controller... -
Page 40: Commissioning The Vvt Zone Controller
Before starting the air source fan, make sure the zone terminal dampers are not closed. Starting the fan with dampers closed will damage the system ductwork. Commissioning the VVT Zone Controller Using Field Assistant or i-Vu: Calibrate the damper travel. -
Page 41: Step 1: Prepare For Balancing
Click Vent to set the zone damper to its ventilation position. Type the desired damper position next to Vent to adjust the airflow to the design value. If you do not have a design value, leave the value at 50% for minimum ventilation. VVT Zone Controller... -
Page 42: Step 3: Set The System Static Pressure
Duct Static Pressure Setpoint field. Wait 1–2 minutes, then verify that the Damper Position is 0% or VFD Output is 100%. If not, repeat the process, adding .05” to the previous Duct Static Pressure Setpoint until the Damper Position is 0% or VFD Output is 100%. VVT Zone Controller... - Page 43 For any equipment whose wiring was disconnected to insure that only the fan only was running, reconnect it the wires for normal operation. CAUTION You must complete steps 4 and 5 to prevent loss of temperature control to the space and to maintain normal operation of the system. VVT Zone Controller...
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Page 44: Sequence Of Operation
Sequence of operation Sequence of operation The VVT Zone Controller supports 3 types of pressure-dependent terminal configurations: • Single duct • Series fan-powered • Parallel fan-powered The controller can operate as part of a linked VVT system or as a stand-alone controller. -
Page 45: Zone Airflow Control
See Appendix B: VVT terminal modes (page 69). Damper Actuator(s) – The VVT Zone Controller's built-in 35 in/lb actuator has a 205 second full travel time for 90° operation. For field retrofit applications, the actuator can be adjusted for a damper stroke between 30°... -
Page 46: Zone Reheat Control
Sequence of operation Zone reheat control The VVT Zone Controller can be configured for one of the following Heat Types to meet the zone's heating requirements: • Modulating Hot Water/Steam • Two Position Hot Water/Steam • Staged Electric Heat (2 stages for Series/Parallel Fan, 3 stages for Single Duct.) •... -
Page 47: Demand Control Ventilation (Dcv) And Dehumidification Using Optional Sensors
Demand control ventilation (DCV) and dehumidification using optional sensors The VVT Zone Controller’s RH/CO2 input supports an optional CO sensor or Relative Humidity (RH) sensor. The sensor can have a 5-volt maximum output. The range is configurable as either 0–5 or 1–5 volts (1–5 volt supports 4–20 mA sensors with a 250 ohm resistor). -
Page 48: Occupancy
A local schedule set up directly in the controller using a BACview or Field Assistant. • A network schedule from an i-Vu internal router. The VVT Zone Controller must be networked to an i-Vu Open Router or an i-Vu internal router. -
Page 49: Alarms
Alarms Space Temp Sensor Alarm – The VVT Zone Controller monitors each space temperature sensor and the network input for space temperature. If no valid space temperature value is available, the controller generates an alarm and disables all local heating or cooling. The controller modulates the damper to the minimum heat, minimum cool, or ventilation position based on the air source mode. -
Page 50: Demand Limiting
If the VVT Zone Controller receives a demand limit signal through the network, it expands its setpoints based on the demand level. The default amount is 1°F for demand level 1, 2°F for demand level 2, or 4°F for demand level 3. -
Page 51: Air Source Mode Determination
COOL – The zone’s local heat has not operated for at least 5 minutes, the current mode is not Heat or Vent, and the SAT is less than 65°F. See Appendix B: VVT terminal modes (page 69). VVT Zone Controller... -
Page 52: Troubleshooting
Troubleshooting Troubleshooting If you have problems mounting, wiring, or addressing the VVT Zone Controller, contact Carrier Control Systems Support. LED's The LED's on the VVT Zone Controller show the status of certain functions. If this LED is on... Status is... -
Page 53: Serial Number
The VVT Zone Controller's 10-year Lithium CR2032 battery provides a minimum of 10,000 hours of data retention during power outages. If the VVT Zone Controller experiences a power outage and the control program stops functioning, replace the battery. Remove the VVT Zone Controller's cover. -
Page 54: Compliance
ASHRAE. ASHRAE does not endorse, approve or test products for compliance with ASHRAE standards. Compliance of listed products to requirements of ASHRAE Standard 135 ® is the responsibility of the BACnet manufacturers Association (BMA). BTL is a registered trademark of the BMA. VVT Zone Controller... -
Page 55: Appendix A: Vvt Zone Controller Points/Properties
Appendix A: VVT Zone Controller Points/Properties NOTE Engineering units shown in this document in the defaults and ranges are strictly for reference. You must enter an integer only. Status Navigation: i-Vu / Field Assistant: Properties Equipment Status > > BACview:... -
Page 56: Unit Configuration
Appendix A: VVT Zone Controller Points/Properties Unit Configuration Navigation: i-Vu / Field Assistant: Properties Equipment Configuration Unit Configuration > > > BACview: HOME CONFIG UNIT > > Point Name/Description Default/Range Heat Enable – Enables the reheat function. Enable Disable/Enable Parallel Fan Heat On Delay – The delay in reheat coming on after the zone has a 15 minutes heating demand. -
Page 57: Setpoints
Setpoints i-Vu / Field Assistant: > > > BACview: HOME CONFIG SETPOINT > > Select a color band on the setpoint graph to see the current setpoints in the Heating and Cooling fields. See setpoint descriptions below. VVT Zone Controller... - Page 58 Appendix A: VVT Zone Controller Points/Properties Occupied Setpoints The occupied setpoints described below are the setpoints under normal operating conditions. The Demand Level 1–3 setpoints apply if demand limiting is used. Demand limiting is a cost-saving strategy to reduce energy consumption. The strategy expands the occupied heating and cooling setpoints when the system reaches one of 3 levels of consumption.
- Page 59 Cooling Design Temp – The geographically-based outdoor air temperature at which the 100°F cooling system must run constantly to maintain comfort. This information is available in -100 to 150°F ASHRAE publications and most design references. VVT Zone Controller...
- Page 60 Appendix A: VVT Zone Controller Points/Properties Point Name/Description Range Hysteresis – The desired difference between the temperature at which the zone color 0.5°F changes as the zone temperature departs from the acceptable range between the 0.2 to 1.0°F heating and cooling setpoints (green) into the Cooling 1 (yellow) or Heating 1 (light blue) and the temperature at which the zone color changes back to the acceptable range between the heating and cooling setpoints.
- Page 61 Enable , this is the value that the CO2 sensor must exceed to begin the DCV control function. 0 to 9999 ppm This value should be set to approximately 75 ppm above the outdoor air CO2 level. VVT Zone Controller...
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Page 62: Alarm Configuration
Appendix A: VVT Zone Controller Points/Properties Point Name/Description Default/Range DCV Max Ctrl Setpoint – If Optional Sensor Type is set to IAQ Sensor and DCV Control is set to 1050ppm Enable, this is the value that the CO2 level must exceed to begin the IAQ function to control the... - Page 63 Pro and SPT Pro Plus' sensor if the Space Humidity Alarm is active. Ignore/Display Space High CO2 Alarm – Shows the alarm indicator on the SPT Pro sensor if the Indoor Ignore Air Quality Alarm is in alarm. Ignore/Display VVT Zone Controller...
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Page 64: Service Configuration
Appendix A: VVT Zone Controller Points/Properties Service Configuration Navigation: i-Vu / Field Assistant: Properties Equipment Configuration Service Configuration > > > BACview: HOME CONFIG SERVICE > > Point Name/Description Default/Range Terminal Type – The type of zone terminal that the controller is installed on. - Page 65 Cooling Min Damper Position – The minimum damper position the terminal controls to when the air source mode is Cooling, Vent, or Free Cooling and the space 0 to 100% requirements for cooling are at a minimum. We recommend that you set this no lower than 10%. VVT Zone Controller...
- Page 66 Appendix A: VVT Zone Controller Points/Properties Point Name/Description Default/Range Cooling Max Damper Position – The maximum damper position the terminal controls 100% to when the air source mode is Cooling, Vent, or Free Cooling and the space 0 to 100% requirements for cooling are at a maximum.
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Page 67: Maintenance
Effective Cool Setpoint – The current cooling setpoint. -56 to 245°F Relative Humidity Source – The source of the relative humidity. Local Network Linkage Locked Value IAQ Source – The source of the indoor air quality. Local Network Linkage Locked Value VVT Zone Controller... - Page 68 Appendix A: VVT Zone Controller Points/Properties Point Name/Description Default/Range Outdoor Air Temperature Source – The source of the outside air temperature. Local Network Linkage Locked Value Heat Delay – The status of the terminal heat delay. Inactive/Active Remaining Heat Delay – If Heat Delay is Active, this is the remaining delay time.
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Page 69: Alarms
Details tabs. See the microblock popup's Help files for more detailed explanations. Linkage Collector – Set the Number of Providers to the total number of controllers in the linked system, including the bypass and VVT Master. 1 to 32 VVT Zone Controller... - Page 70 Appendix A: VVT Zone Controller Points/Properties Point Name/Description Default/Range Linkage Provider – Enter the MS/TP Network Number and MAC Address of the linked air source controller. Network Number 1 to 65535 Address 1 to 99 Airside Linkage Status – If Active, the controller is part of a linked system. If Not Not Active/Active Active, the controller is a stand-alone device.
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Page 71: I/O Points
SPT Temp Sensor - (For the SPT Standard, SPT Plus, and SPT Pro sensors only). Sensor configurations on the microblock's Properties > Details tab are listed below. For more information, consult the Carrier Sensors Installation Guide. • Zone Temp - do not adjust these settings. - Page 72 Appendix A: VVT Zone Controller Points/Properties Point Name/Description Default/Range Sensor Array: Sensor calculation method - When using multiple SPT sensors, select the process variable to be passed to the controller. Avg, Min, Max BACnet configuration: Network Visible - Must be enabled for other BACnet objects to read or write to this Enabled point, and for this point to generate alarms.
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Page 73: Appendix B: Vvt Terminal Modes
Single Duct, Heating Minimum Damper Position Disable Disable Parallel Fan (Cool) Series Fan Heating Minimum Damper Position Disable Enable (Cool) Single Duct Reheat Minimum Damper Position Enable Series or Heating Minimum Damper Position Enable Enable Parallel Fan (Cool) VVT Zone Controller... - Page 74 Series Fan Pressurize Maximum Damper Position Disable Enable (Cool) Single Duct, Maximum Damper Position Pressurize Disable Disable Parallel Fan (Cool) Series Fan Pressurize Maximum Damper Position Disable Enable (Cool) Evacuation/ Evacuate Close Damper Disable Disable Shutdown (Linked) VVT Zone Controller...
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Page 75: Index
Alarms Displayed on SPT Sensor • 58 Field Assistant • 51 Allow Continuous • 67 Field-supplied hardware • 6, 12 Automatic Control • 60 Auxheat • 60 BACnet Configuration • 67 BAS On/Off • 63 I/O Points • 67 VVT Zone Controller... - Page 76 High SAT Alarm Limit • 45, 58 Parallel Fan On Value • 30, 41, 53 Hot Water Valve • 67 PD (Perssure Dependent) Control • 33, 60 Hysteresis • 30, 53 Power Fail Restart Delay • 52 VVT Zone Controller...
- Page 77 Term Type • 33, 51, 60 Terminal Mode • 51 Terminal Type • 51, 60 Vent • 60 Test and Balance • 60 Virtual BACview • 29 Timed Local Override • 67 VVT Master • 1, 46 VVT Zone Controller...
- Page 78 Single duct modulating hot water wiring diagram • 23 Single duct only wiring diagram • 22 Wiring for power • 8 Wiring specifications Equipment wiring • 21 Network • 10 Rnet • 12 Zone airflow control • 41 Zone reheat control • 42 VVT Zone Controller...
- Page 80 CARRIER CORPORATION ©2011 A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-435-01 · 6/20/2011...
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