Carrier VVT Zone II, VVT Zone Installation And Startup Manual

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www.hvacpartners.com

Document revision history

Verify that you have the most current version of this document from

office.

Important changes are listed in

at the end of this document.

or your local Carrier

Page 3

Introduction .................................................................................................................................................................. 1

Installing the VVT Zone II............................................................................................................................................. 6

Start-up ....................................................................................................................................................................... 40

Contents

What is a VVT Zone II? ......................................................................................................................................... 1

Specifications ........................................................................................................................................................ 3

Safety Considerations .......................................................................................................................................... 5

Field-supplied hardware ...................................................................................................................................... 5

Mounting the VVT Zone II ..................................................................................................................................... 6

To mount the controller and actuator .................................................................................................. 6

Wiring the VVT Zone II for power ..................................................................................................................... 10

To wire the controller for power .......................................................................................................... 11

Addressing the VVT Zone II ............................................................................................................................... 12

Wiring for communications .............................................................................................................................. 12

Wiring specifications for BACnet MS/TP and ARC156 ...................................................................... 12

To wire the controller to the BACnet network .................................................................................... 13

Wiring devices to the VVT Zone II's Rnet port ............................................................................................... 13

Wiring specifications ........................................................................................................................... 14

To wire ZS sensors to the controller ................................................................................................... 14

To wire the Wireless Adapter for wireless sensors ............................................................................ 15

To wire an Equipment Touch to the VVT Zone II ................................................................................ 17

To wire the TruVu™ ET Display ........................................................................................................... 18

Wiring sensors to the VVT Zone II's inputs ..................................................................................................... 19

Wiring specifications ........................................................................................................................... 19

To wire the T55 sensor to the controller ............................................................................................ 20

To wire the Supply Air Temperature sensor to the controller ........................................................... 20

To wire a Duct Air Sensor to the controller ........................................................................................ 21

To wire the CO2 sensor to the controller ........................................................................................... 21

To wire the Relative Humidity sensor to the controller ..................................................................... 23

Wiring a remote occupancy sensor .................................................................................................... 24

Wiring equipment to outputs ........................................................................................................................... 25

Wiring specifications ........................................................................................................................... 25

Wiring diagram legend ........................................................................................................................ 26

Single duct only ................................................................................................................................... 26

Single duct 2-position hot water ......................................................................................................... 27

Single duct modulating hot water ...................................................................................................... 28

Single duct SCR electric heat ............................................................................................................. 29

Single duct combination base board and ducted heat ..................................................................... 30

Single duct staged electric heat ......................................................................................................... 31

Fan box 2-position hot water .............................................................................................................. 32

Fan box modulating hot water - ducted or baseboard ...................................................................... 33

Fan box SCR electric heat ................................................................................................................... 34

Fan box combination baseboard and ducted heat ........................................................................... 35

Fan box 2-stage electric heat ............................................................................................................. 36

Wiring field-supplied actuators to the analog output ........................................................................ 37

Configuring the VVT Zone II's properties ........................................................................................................ 40

Configuring ZS Sensors ..................................................................................................................................... 41

Performing system checkout ........................................................................................................................... 41

Commissioning the VVT Zone II ....................................................................................................................... 42

Balancing the system ........................................................................................................................................ 42

Step 1: Prepare for balancing ............................................................................................................ 43

Step 2: Balance each zone ................................................................................................................ 43

Step 3: Set the system static pressure ............................................................................................. 44

Page 4

Contents

Sequence of operation .............................................................................................................................................. 46

To adjust the driver properties.................................................................................................................................. 56

Troubleshooting ......................................................................................................................................................... 61

Compliance ................................................................................................................................................................ 64

Appendix A: VVT Zone II Points/Properties ............................................................................................................ 65

Appendix B: VVT terminal modes ............................................................................................................................ 92

Appendix C: ZS Sensor display for VVT Zone II ....................................................................................................... 94

Appendix D: BACnet points list ................................................................................................................................ 95

Document revision history ........................................................................................................................................ 98

Temperature sensors ........................................................................................................................................ 46

Zone airflow control ........................................................................................................................................... 47

Zone reheat control ........................................................................................................................................... 48

Demand control ventilation (DCV) and dehumidification using optional sensors ................................... 49

Occupancy ........................................................................................................................................................... 50

Alarms ................................................................................................................................................................. 51

Demand limiting ................................................................................................................................................ 52

Linkage ................................................................................................................................................................ 52

Linkage modes and operation ......................................................................................................................... 54

Driver ................................................................................................................................................................... 56

Device .................................................................................................................................................................. 57

Notification Classes ........................................................................................................................................... 58

Calendars ............................................................................................................................................................ 59

Common Alarms ................................................................................................................................................ 59

Specific Events ................................................................................................................................................... 60

Switches, Jumpers, Options ............................................................................................................................. 60

Act Net Network Details ................................................................................................................................... 60

LED's .................................................................................................................................................................... 61

To get the serial number .................................................................................................................................. 62

To restore factory defaults ............................................................................................................................... 63

To replace the battery ....................................................................................................................................... 63

FCC Compliance ................................................................................................................................................. 64

CE Compliance ................................................................................................................................................... 64

BACnet Compliance........................................................................................................................................... 64

Status................................................................................................................................................................... 65

Unit Configuration .............................................................................................................................................. 66

Setpoints ............................................................................................................................................................. 68

Alarm Configuration .......................................................................................................................................... 75

Service Configuration ........................................................................................................................................ 77

Maintenance ....................................................................................................................................................... 83

Alarms ................................................................................................................................................................. 86

Linkage ................................................................................................................................................................ 87

I/O Points ............................................................................................................................................................ 89

Page 5

What is a VVT Zone II?

NOTE

Introduction

The VVT Zone II (#OPN-VVTZC-02), a component of the i-Vu® Control System, controls zone temperature in single duct, fan powered, Variable Volume and Temperature (VVT

The VVT Zone II is available in both English or Metric units. The metric version has (-M) appended to the

part number. Everything in this document applies to both versions.

The VVT Zone II with actuator maintains zone temperature by operating the terminal fan and regulating the flow of conditioned air into the space. Buildings with diverse loading conditions can be supported by controlling the air source heating and cooling sources or supplemental heat. The VVT Zone II provides dedicated control functions for single duct and fan box terminals with modulating heat, up to 3 stages of ducted heat, or combination baseboard and ducted heat.

The i-Vu Control System uses linkage to exchange data between the zone terminals and their air source to form a coordinated HVAC system. The system's air source controller, zone controllers, and bypass controller are linked so that their data exchange can be managed by one zone controller configured as the VVT Master.

You can disconnect the actuator from the controller and mount them separately, connecting them with just the actuator cable or using an additional extension cable, up to a maximum distance of 300 feet.

The following illustration shows the VVT Zone II in a typical i-Vu® Control System.

) applications.

Page 6

Introduction

NOTE

This document gives instructions for field-installation of a VVT Zone II in an i-Vu® Control System. However, VVT Zone IIs are available factory-mounted to Carrier’s round and rectangular dampers. Damper assemblies have an integrated duct temperature sensor.

Page 7

Introduction

Specifications

NOTE

Driver drv_vvtopn02

Power 24 Vac ±10%, 50–60 Hz

14 VA power consumption 26 Vdc (25 V min, 28.8 V max) Single Class 2 source only, 100 VA or less

Actuator Belimo brushless DC motor, torque 45 inch-pounds (5 Nm), runtime 154 seconds

Act Net port To connect the actuator cable and the VVT Zone II

BACnet port

Rnet port

Local Access port For system start-up and troubleshooting using Field Assistant

For communication with the controller network using BACnet ARC156 (156 kbps) or BACnet MS/TP (9600 bps – 76.8 kbps)

• Supports up to 5 wireless and/or ZS sensors, and one Equipment Touch or TruVu™ ET Display.

• Supplies 12 Vdc/200 mA power to the Rnet at an ambient temperature of 77°F (25°C) with a 24 Vac nominal power source. NOTE Ambient temperature and power source fluctuations may reduce the power supplied by the Rnet port.

If the total power required by the sensors on the Rnet exceeds the power supplied by the Rnet port, use an external power source. The Wireless Adapter, Equipment Touch, or TruVu™ ET Display must be powered by an external power source. See the specifications in each device's Installation and Start-up Guide to determine the power required.

Thermistor inputs Accepts Precon type II thermistors (10kOhm at 77°F [25°C])

Range: -50°F (-45.5°C) to 250°F (121.1°C)

Dry contact inputs A 3.3 Vdc wetting voltage used to detect the contact position, resulting in a 0.3

mA maximum sense current when the contacts are closed.

Voltage inputs 0-5 Vdc. Input impedance is approximately 30 kOhms

Input resolution 10 bit A/D

Binary outputs 3 binary outputs, relay contact rated at 1 A max. @ 24 Vac/Vdc. Configured

normally open.

Analog output 1 analog output, 0–10 Vdc (5 mA max).

The controlled device must have a minimum of 2000 Ohms resistance measured from its input to ground and must share the same ground as the controller.

Output resolution 8 bit D/A

Battery 10-year Lithium CR2032 battery retains the following data for a maximum of

10,000 hours during power outages: control programs, editable properties, schedules, and trends.

Page 8

Introduction

CAUTION

Protection Built-in surge and transient protection for power and communications in

compliance with EN61000-6-1.

Incoming power and network connections are protected by non-replaceable internal solid-state polyswitches that reset themselves when the condition that causes a fault returns to normal.

The power, network, input, and output connections are also protected against transient excess voltage/surge events lasting no more than 10 msec.

To protect against large electrical surges on serial EIA-485

networks, place a PROT485 at each place wire enters or exits the building.

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.

Status indicators LEDs indicate status of communications, running, errors, power, and digital

outputs

Environmental operating

32 to 130°F (0 to 54.4°C), 10–90% relative humidity, non-condensing

range

Storage temperature range -24 to 140°F (-30 to 60°C), 0 to 90% relative humidity, non-condensing

Physical UL94-5VA plenum rated enclosure for installation in plenum (or other space for

environmental air) in accordance with NEC Section 300.22 (c) and (d)

Controller and actuator overall dimensions

Controller and actuator mounting dimensions

Controller overall dimensions

Controller mounting dimensions

Actuator overall dimensions Width:

Actuator mounting

Width: Height:

8.9 in. (22.7 cm)

5.9 in. (15.0 cm)

7.1 in. (18.0 cm) from left side controller mounting hole centerline to actuator mounting hole centerline

Width: Height: Depth:

6.4 in. (16.3 cm)

5.7 in. (14.5 cm)

2.1 in. (5.3 cm)

5.3 in. (13.4 cm) from left side controller mounting hole centerline to right side controller mounting hole centerline

3.0 in. (7.6 cm) Height: Depth:

5.9 in. (15.0 cm)

2.5 in. (6.4 cm)

4.4 in. (11.2 cm) from shaft centerline to actuator mounting hole centerline

dimensions

Panel depth 2.5 in. (6.4 cm) minimum

Shaft dimensions Minimum shaft diameter: .25 in. (.64 cm)

Maximum shaft diameter: .63 in. (1.59 cm) Minimum shaft length: 1.75 in. (4.45 cm)

Weight 1.8 lbs (0.82 kg)

BACnet support Conforms to the BACnet Advanced Application Controller (B-AAC) Standard Device

Profile as defined in ANSI/ASHRAE Standard 135-2012 (BACnet) Annex L, Protocol Revision 9

Listed by UL-916 (PAZX), cUL-916 (PAZX7), FCC Part 15-Subpart B, Class B, CE

Page 9

Introduction

Safety Considerations

CAUTION

WARNING Electrical Shock Hazard

WARNING

Field-supplied hardware

Air conditioning equipment will provide safe and reliable service when operated within design specifications. The equipment should be operated and serviced only by authorized personnel who have a thorough knowledge of system operation, safety devices, and emergency procedures.

Good judgment should be used in applying any manufacturer's instructions to avoid injury to personnel or damage to equipment and property.

Failure to follow this warning could cause personal injury, death, and/or equipment damage.

Disconnect all power to the unit before performing maintenance or service. Unit may automatically start if power is not disconnected.

materials such as mercury contactors.

Follow all local, state, and federal laws regarding disposal of equipment containing hazardous

Each zone controller installation requires the following field-supplied components:

• zone terminal unit

• round or rectangular mounting bracket

• space temperature sensor

• supply air temperature sensor

• 2x4 in. standard single gang electrical box

• transformer — 24 Vac, 40 VA

• two no. 10 x 1/2-in. sheet metal screws (to secure SAT sensor to duct)

• two no. 6-32 x 5/8-in. screws (to mount space temperature sensor base to electrical box)

• wiring

• bushings (required when mounting SAT sensor in a duct 6-in. (15.2 cm) or less in diameter)

Optional:

• contractors (if required for fan or electric heat)

• indoor air quality sensor

• relative humidity sensor

• 2 screws and 2 hollow wall anchors (to mount relative humidity sensor directly to wall)

• valve and actuator for hot water heat (if required)

Page 10

Installing the VVT Zone II

Mounting the VVT Zone II

To mount the controller and actuator

Installing the VVT Zone II

To install the VVT Zone II:

1 Mount the controller to the VVT box. (page 6)

2 Wire the controller for power. (page 10)

3 Set the controller's address. (page 12)

4 Wire the controller to the BACnet MS/TP or BACnet ARC156 network. (page 12)

5 Wire devices to the Rnet port. (page 13)

6 Wire sensor(s) to the controller. (page 19)

7 Wire equipment to the controller's outputs. (page 25)

To disconnect and mount the controller and actuator separately

Page 11

Installing the VVT Zone II

Act Net

Adding an extension cable

Act Net

Disconnect the actuator from the controller by inserting a screw driver in the slot on the back of the VVT Zone II and pressing the tab. The actuator cable or an attached extension cable must connect to the controller's port.

If you need to mount the actuator more than 14 in. from the controller, you can use an 18 AWG wire for an extension cable. The maximum distance that the actuator and controller can be separated is 300 feet (91.4 m). Connect the extension cable to the end of the actuator cable. You can use connectors or splice the wires. Terminate the extension cable in the

1 Turn the damper shaft to fully close the damper.

2 Mount the controller to the VVT terminal by sliding the clamp assembly onto the damper shaft.

port on the controller.

Page 12

Installing the VVT Zone II

NOTE

O-ring Bushing

Anti-rotation slot

NOTES

For service access, allow at least 1 foot (.3 m) of clearance between the front of the controller and

adjacent surfaces.

3 Secure the controller and the actuator by installing the screws, anti-rotation slot's bushings, and o-rings that

are supplied with the VVT Zone II.

○ Center the bushing in the slot. Failure to do so may cause the actuator to stick or bind.

○ The VVT Zone II must be secured, but loose enough to allow movement. of the damper shaft.

Page 13

Installing the VVT Zone II

CAUTIONS

must

○ You

○ Overtightening the screws so that the controller and actuator cannot move may damage the unit.

use the screws, anti-rotation slot's bushings, and o-rings that are shipped with the VVT Zone II.

4 Hold down the actuator damper release button and rotate the actuator clamp in the same direction that

closed the damper. Rotate the clamp until it stops, then rotate it back one notch.

5 Release the button.

6 Tighten the actuator clamp to the damper shaft by tightening the two M5 nuts.

Page 14

Installing the VVT Zone II

Wiring the VVT Zone II for power

WARNING

CAUTIONS

7 Hold down the actuator damper release button and rotate the damper from fully closed to fully open. If the

damper traveled less than 90 degrees, do the following to set the actuator's fully open position:

a) Loosen the appropriate stop clamp screw. See figure below.

b) Move the stop clamp until it contacts the

edge of the actuator cam.

c) Tighten the screw.

8 Hold down the actuator damper release button, rotate the damper to verify that it fully opens and closes, then

release the button.

• The VVT Zone II 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:

• Maintain the same polarity.

• Use the power supply only for Carrier controllers.

Do not apply line voltage (mains voltage) to the controller's ports and terminals.

Page 15

Installing the VVT Zone II

To wire the controller for power

Gnd

24 Vac

Gnd

Power

Run

1 To access the screw terminal connectors, lift up the controller's cover by pulling the tabs located on both

sides of the controller's left mounting bracket.

2 Remove power from the power supply.

3 Pull the screw terminal connector from the controller's power terminals labeled

and

4 Connect the transformer wires to the screw terminal connector.

5 Apply power to the power supply.

6 Measure the voltage at the VVT Zone II’s power input terminals to verify that the voltage is within the

operating range of 21.6–26.4 Vac.

7 Connect a 4-inch (10.2 cm) wire from

to the control panel.

8 Insert the screw terminal connector into the VVT Zone II's power terminals.

9 Verify that the

LED is on and the

LED is blinking.

Page 16

Installing the VVT Zone II

Addressing the VVT Zone II

Gnd

24 Vac

Tens (10's

Ones (1's

EXAMPLE

Tens (10's

Ones (1's

10's 1's

CAUTION

Wiring for communications

NOTE

Wiring specifications for BACnet MS/TP and ARC156

WARNING

You must give the VVT Zone II an address that is unique on the network. You can address the VVT Zone II before or after you wire it for power.

1 If the VVT Zone II has been wired for power, pull the screw terminal connector from the controller's power

terminals labeled

2 Using the rotary switches, set the controller's address. Set the

address, and set the

the

If the controller’s address is 25, point the arrow on the

and

) switch to 5.

. The controller reads the address each time you apply power to it.

) switch to the tens digit of the

) switch to the ones digit.

) switch to 2 and the arrow on

The factory default setting is 00 and must be changed to successfully install your VVT Zone II.

The VVT Zone II communicates using BACnet on the following types of network segments:

• MS/TP communicating at 9600 bps, 19.2 kbps, 38.4 kbps, or 76.8 kbps

• ARC156 communicating at 156 kbps

For more networking details, see the Open Controller Network Wiring Installation Guide.

Cable: 22 AWG or 24 AWG, low-capacitance, twisted, stranded, shielded copper wire

Maximum length: 2000 feet (610 meters)

Do not apply line voltage (mains voltage) to the controller's ports and terminals.

Page 17

Installing the VVT Zone II

To wire the controller to the BACnet network

WARNING

Act Net

Gnd

24 Vac

Net +, Net -

Shield

NOTE

For...

Set BACnet ARC156 or MS/TP jumper to...

Set DIP switches 1 and 2 to...

ARC156

MS/TP

MS/TP Baud

NOTE

Wiring devices to the VVT Zone II's Rnet port

CAUTION Rnet power

terminating resistors on that network.

1 Pull the screw terminal connector from the controller's power terminals labeled

2 Check the communications wiring for shorts and grounds.

3 Connect the communications wiring to the controller’s screw terminals labeled

4 Set the communication type and baud rate.

Attaching any ARCNET or MS/TP network to the

Use the same polarity throughout the network segment.

port damages BT485s, DIAG485s, or

and

, and

ARC156

N/A. Baud rate will be 156 kbps regardless of the

DIP switch settings.

MS/TP

The appropriate baud rate. See the

diagram on the controller.

Use the same baud rate for all controllers on the network segment.

5 If the VVT Zone II is at either end of a network segment, connect a BT485 to the VVT Zone II.

6 Insert the power screw terminal connector into the VVT Zone II's power terminals.

7 Verify communication with the network by viewing a Module Status report in the i-Vu® interface.

The Rnet communicates at a rate of 115 kbps and should be wired in a daisy-chain or hybrid configuration.

Supports up to

• 5 wireless and/or ZS sensors

• One Equipment Touch

• One TruVu™ ET Display

For more detailed instructions, see the device's Installation Guide.

The Rnet port provides 12 Vdc/200 mA* maximum at 32°F (25°C). that can be used to power zone sensors. If the total power required by the sensors on the Rnet exceeds the power supplied by the port, use an external power supply. See the sensor's Installation and Start-up Guide to determine the power required.

* These numbers will be reduced at higher temperatures.

Page 18

Installing the VVT Zone II

Wiring specifications

To wire ZS sensors to the controller

NOTE

Outer Jack

Inner insulation

.25 in. (.6 cm)

NOTE

Connect this wire...

To this terminal...

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)

ZS Sensors are thermistor-based temperature sensors that may optionally sense humidity, CO2, or VOC. ZS Sensors are wired to the Rnet port on i-Vu® Open controllers.

You can use the following ZS sensors:

• ZS Standard

• ZS Plus

• ZS Pro

The ZS CO2 model uses 190 mA during sample period. Use auxiliary 12 Vdc, unless it is the only device on

the Rnet port.

1 Remove power from the VVT Zone II.

2 Partially cut, then bend and pull off the outer jacket of the Rnet cable(s). Do not nick the inner insulation.

Strip about .25 inch (.6 cm) of the inner insulation from each wire.

3 Wire each terminal on the sensor to the same terminal on the controller. See diagram below.

Carrier recommends that you use the following Rnet wiring scheme:

Red

Black

White

Green

+12V

Rnet-

Rnet+

Gnd

4 Apply power to the VVT Zone II.

Page 19

Installing the VVT Zone II

To wire the Wireless Adapter for wireless sensors

WARNING

REQUIREMENTS

NOTES

Inner insulation

Outer jacket

Foil shield

.25 in. (.6 cm)

Shield wire

The Carrier wireless sensors are available in 868, 902, and 928 MHz radio frequency. The sensors are thermistorbased temperature sensors that may optionally sense humidity.

Wireless sensors communicate through a Wireless Adapter, which is wired to the Rnet port of the controller.

• A v6.5 or later i-Vu® system

• v6-xx-xxx or later controller drivers

To configure the control program for the desired user interaction with the sensor, see the Wireless Sensors Application Guide. For detailed instructions, see the Wireless Sensors Installation Guide.

To wire, power, and mount the Wireless Adapter

• The Wireless Adapter requires a 24 Vac power supply. It is not powered by the Rnet.

Do not apply line voltage (mains voltage) to the Wireless Adapter.

• If the Wireless Adapter will be:

○ Daisy-chained on the Rnet with ZS sensors, an Equipment Touch, or TruVu™ ET Displayuse the standard

4-conductor Rnet wiring.

○ The only device on the Rnet, you can use a 3-conductor cable instead of the standard 4-conductor Rnet

cable.

1 Turn off the power to the controller that the Wireless Adapter will be wired to.

2 Partially cut, then bend and pull off the outer jacket of the Rnet cable(s). Do not nick the inner insulation.

3 Strip about 0.25 inch (0.6 cm) of the inner insulation from each wire.

Page 20

Installing the VVT Zone II

Rnet +, Rnet -

Gnd

Rnet

NOTE

Gnd

LED

If the LED is...

Then the device...

device.

4 Wire the

, and

terminals on the controller's

port to the terminals of the same name on

the Wireless Adapter's Rnet connector.

If using shielded wire, connect the shield wire and the ground wire to the

terminal.

5 Wire the 24 Vac external power supply to the Wireless Adapter's power connector.

6 Mount the Wireless Adapter by inserting 2 screws through the mounting tabs on each end of the Wireless

Adapter.

7 Apply power to the external power supply.

8 Verify that the LED on top of the Wireless Adapter is blinking. See "LED" below.

9 Turn on the controller's power.

The blue LED on the top of the Wireless Adapter indicates the following:

Off Is not powered or there is a problem.

Blinking Is working properly.

Steadily on Has a problem. Do one of the following:

• Cycle power to the device.

• Insert a small screwdriver or paper clip into the hole next to the LED to reboot the

Page 21

Installing the VVT Zone II

To wire an Equipment Touch to the VVT Zone II

NOTES

CAUTION

off

Rnet+

Rnet-

NOTE

Gnd

• The Equipment Touch requires a 24 Vac power supply. It is not powered by the Rnet.

• If the Equipment Touch will be:

○ Daisy-chained on the Rnet with ZS sensors or a Wireless Adapter, use the standard 4-conductor Rnet

wiring and follow the wiring instructions To wire ZS sensors to the VVT Zone II (page 14).

○ The only device on the Rnet, you can use a 2-conductor cable instead of the standard 4-conductor Rnet

cable and follow the instructions below.

• For complete Equipment Touch installation instructions including wiring diagrams, see the Equipment Touch Installation and Setup Guide.

• The power supply is AC power.

• You maintain the same polarity.

• You use the power source only for Carrier controllers.

1 Turn

2 Partially cut, then bend and pull off the outer jacket of the cable. Do not nick the inner insulation.

The VVT Zone II can share a power supply with the Carrier controller as long as:

the VVT Zone II's power.

3 Strip about 0.25 inch (0.6 cm) of the inner insulation from each wire.

4 Wire the VVT Zone II's

and

terminals to the terminals of the same name on the Equipment

Touch's connector.

If using shielded wire, connect the shield wire and the ground wire to the

terminal.

5 Turn on the VVT Zone II's power.

6 Turn on the Equipment Touch.

Page 22

Installing the VVT Zone II

To wire the TruVu™ ET Display

WARNING

24V DC

CAUTION

RS485

Rnet

Gnd

Gnd, +

Rnet +, -

Rnet -

Wiring power

Do not apply line voltage (main) - 24 Vdc power only.

Wire the TruVu™ ET Display Maximum distance 100 feet (30 meters).

• The power supply is DC power.

• You maintain the same polarity.

• You use the power source only for Carrier controllers.

The TruVu™ ET Display can share a power supply with the Carrier controller as long as:

connector to the 24 Vdc power supply using 2-conductor 18 AWG wire.

Wiring communication

1 Turn off the VVT Zone II's power.

2 Wire the TruVu™ ET Display's

using 2-conductor 22 AWG wire with a maximum distance of 500 feet (152 meters).

connector to the <ALCProduct>'s

port,

3 Turn on the VVT Zone II's power.

For complete TruVu™ ET Display installation instructions, see the TruVu™ ET Display Installation and Start-up Guide.

Page 23

Installing the VVT Zone II

Wiring sensors to the VVT Zone II's inputs

NOTE

WARNING

CAUTION

Wiring specifications

You can wire the following sensors to the VVT Zone II's inputs:

• Alternate space temperature sensor (page 20)

• Supply Air Temperature sensor (page 20)

• Duct Air Temperature sensor (page 21)

• CO

sensor (page 21)

• Relative Humidity sensor (page 23)

• Remote occupancy contact sensor (page 24)

This document gives instructions for wiring the sensors to the VVT Zone II. For detailed installation

instructions, see the device's Installation Guide.

Disconnect electrical power to the VVT Zone II before wiring it. Failure to follow this warning could

cause electrical shock, personal injury, or damage to the controller.

• Do not run sensor or relay wires in the same conduit or raceway with Class 1 AC or DC service wiring.

• Do not abrade, cut, or nick the outer jacket of the cable.

• Do not pull or draw cable with a force that may harm the physical or electrical properties.

• Avoid splices in any control wiring.

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)

Page 24

Installing the VVT Zone II

To wire the T55 sensor to the controller

T55 (Opt)

Gnd

T55 (Opt)

Thermistor

To wire the Supply Air Temperature sensor to the controller

Part #33ZCT55SPT

This wall-mounted sensor monitors space temperature and can be used instead of a ZS or wireless sensors.

1 Strip the outer jacket from the cable for at least 3 inches (7.62 cm). Strip .25 inch (.6 cm) of insulation from

each wire. Cut the shield and drain wire from the cable.

2 Wire the sensor to the controller, attaching the red wire to the

terminal. See diagram below.

3 Verify that the

jumper is in the

position.

terminal and the black wire to the

Part #33ZCSENSAT

Each VVT Zone II requires that a temperature sensor be installed in the supply air stream. Mount the SAT sensor at least 2 feet downstream from a hot water or steam coil, or at least 4 feet downstream from an electric heating coil.

Wire the sensor to the controller. See diagram below.

Page 25

Installing the VVT Zone II

To wire a Duct Air Sensor to the controller

NOTE

Enable SAT

Enable SAT and REMOTE

To wire the CO2 sensor to the controller

NOTE

#33ZCSPTCO2

RH/CO2

0-5 Vdc

1 Wire the sensor to the controller. See diagram below.

Sensor wiring does not have polarity. The wires can be connected to either terminal.

2 Using electrical tape, insulate any exposed wire to prevent shorting.

3 Connect shield to earth ground (if using shielded wire to extend cable length).

4 Verify that the

5 Verify that the

jumper is on.

jumper is in the left position.

Part #33ZCSPTCO2LCD-01 (Display model) Part #33ZCSPTCO2-01 (No display) Part #33ZCT55CO2 (No display)

A CO

sensor monitors carbon dioxide levels. As CO2 levels increase, the VVT Zone II adjusts the outside air

dampers to increase ventilation and improve indoor air quality. These sensors also monitor temperature using a 10K thermistor.

A CO

sensor can be wall-mounted or mounted in a return air duct. (Duct installation requires an Aspirator Box

Accessory - Part #33ZCASPCO2.)

The sensor has a range of 0–2000 ppm and a linear 4-20 mA output. This is converted to 1-5 Vdc by a 250 Ohm, 1/4 watt, 2% tolerance resistor connected across the zone controller's CO2 input terminals.

Do not use a relative humidity sensor and CO2 sensor on the same zone controller.

1 Wire the sensor to the controller. See appropriate diagram below.

2 Verify that the

3 Verify the J7 jumper on the sensor is set to

jumper is set to

on the VVT Zone II.

Page 26

Installing the VVT Zone II

Wiring diagram for #33ZCSPTCO2:

#33ZCT55CO2

RH/CO2

Gnd

RH/CO2

0-5Vdc

1 Wire the sensor to the controller. See appropriate diagram below.

2 Install a field supplied 250 Ohm 1/4 watt 2% tolerance resistor across the controller's

terminals.

3 Verify that the

jumper is set to

on the VVT Zone II.

and

Page 27

Installing the VVT Zone II

Wiring diagram for #33ZCT55CO2:

To wire the Relative Humidity sensor to the controller

NOTE

RH/CO2

0-5 Vdc

Part #33ZCSENSRH-02

The Relative Humidity (RH) sensor is used for zone humidity control (dehumidification) if the rooftop unit has a dehumidification device. If not, the sensor only monitors humidity.

Do not use a relative humidity sensor and CO2 sensor on the same zone controller.

1 Strip the outer jacket from the cable for at least 4 inches (10.2 cm). Strip .25 inch (.6 cm) of insulation from

each wire.

2 Wire the sensor to the controller. See diagram below.

3 Using electrical tape, insulate any exposed resistor lead to prevent shorting.

4 Verify that the

jumper is set to

Page 28

Installing the VVT Zone II

SW3

Wiring a remote occupancy sensor

REMOTE

5 Set

on the sensor as shown below.

You can wire a normally open or normally closed dry-contact occupancy sensor to the VVT Zone II's as shown below. The controller supplies the voltage needed for the input.

input

Page 29

Installing the VVT Zone II

Wiring equipment to outputs

WARNING

Wiring specifications

NOTE

Use the following wiring diagrams to wire zone terminal equipment to the VVT Zone II's outputs.

Single duct (page 26)

Single duct 2-position hot water (page 27)

Single duct modulating hot water (page 28)

Single duct SCR electric heat (page 29)

Single duct combination baseboard and ducted heat (page 30)

Single duct staged electric heat (page 31)

Fan box 2-position hot water (page 32)

Fan box modulating hot water (page 33)

Fan box SCR electric heat (page 34)

Fan box combination base board and ducted heat (page 35)

Fan box 2-stage electric heat (page 36)

Wiring field-supplied actuators to the analog output (page 37)

Disconnect electrical power to the VVT Zone II before wiring it. Failure to follow this warning could

cause electrical shock, personal injury, or damage to the controller.

To size output wiring, consider the following:

• Total loop distance from the power supply to the controller, and then to the controlled device

Include the total distance of actual wire. For 2-conductor wires, this is twice the cable length.

• Acceptable voltage drop in the wire from the controller to the controlled device

• Resistance (Ohms) of the chosen wire gauge

• Maximum current (Amps) the controlled device requires to operate

Page 30

Installing the VVT Zone II

Wiring diagram legend

Gnd

HWV

SAT

SCR

Space temp sensor

T55 (OPT)

– – –

Single duct only

Ground

Hot water valve

Supply air temperature sensor

Silicon controlled rectifier

ZS sensors or Wireless Adapter for

wireless sensors

Alternate space temperature sensor

Field-supplied wiring

Page 31

Installing the VVT Zone II

Single duct 2-position hot water

Page 32

Installing the VVT Zone II

Single duct modulating hot water

Page 33

Installing the VVT Zone II

Single duct SCR electric heat

Page 34

Installing the VVT Zone II

Single duct combination base board and ducted heat

Page 35

Installing the VVT Zone II

Single duct staged electric heat

Page 36

Installing the VVT Zone II

Fan box 2-position hot water

Page 37

Installing the VVT Zone II

Fan box modulating hot water - ducted or baseboard

Page 38

Installing the VVT Zone II

Fan box SCR electric heat

Page 39

Installing the VVT Zone II

Fan box combination baseboard and ducted heat

Page 40

Installing the VVT Zone II

Fan box 2-stage electric heat

Page 41

Installing the VVT Zone II

Wiring field-supplied actuators to the analog output

High-torque actuator

NOTE

You can wire a high-torque actuator or parallel actuators to the controller's 0–10 Vdc analog output.

You can wire one of the following Belimo actuators to the VVT Zone II's analog output instead of using the controller's built-in, 45 in.-lb (4 Nm) actuator.

NMX24-MFT P-10028 90 in.-lb (10 Nm) actuator with 0–10 Vdc control and 0–10 Vdc feedback

AMX24-MFT P-10028 180 in.-lb (20 Nm) actuator with 0–10 Vdc control and 0–10 Vdc feedback

1 Install the actuator according to the manufacturer's instructions.

2 Wire the actuator to the controller using the diagram below.

For proper operation and to prevent damage to the devices, use the same polarity for the actuator's power

and the VVT Zone II's power.

Page 42

Installing the VVT Zone II

Linked actuators

You can wire up to 4 of the following Belimo actuators to the VVT Zone II's analog output. Use like actuators so that travel times and other parameters coincide.

LMX24-MFT P-10028 45 in.-lb (5 Nm) actuator with 0–10 Vdc control

NMX24-MFT P-10028 90 in.-lb (10 Nm) actuator with 0–10 Vdc control

AMX24-MFT P-10028 180 in.-lb (20 Nm) actuator with 0–10 Vdc control

1 Install the actuators according to the manufacturer's instructions.

2 Wire the actuators to the controller using the diagram below.

3 Set the direction rotation switch on each actuator to CW.

Page 43

Installing the VVT Zone II

IMPORTANT!

Properties

I/O Points > Hot Water Valve Max

200

NOTE

scaling to

If slaving 45° actuators, you must go to

for the slave actuator to correctly track the primary actuator.

and change

Maintain polarity if using the same power supply for more than one actuator.

Page 44

Start-up

This interface...

Provides a...

Field Assistant

Equipment Touch

i-Vu®

System Touch

CAUTION

Configuring the VVT Zone II's properties

NOTE

Start-up

Use one of the following interfaces to start up, access information, read sensor values, and test the controller.

application -

Runs on a laptop that connects to controller's Local Access port

device -

Connects to controller's Rnet port

application

Available for BACnet systems only

device

Available only for BACnet MS/TP systems.

Temporary or permanent interface

Permanent interface

Temporary or permanent interface

Temporary interface

Wire to a BACnet MS/TP network connector and a 24 Vac power supply 3

Requires a USB Link (Part #USB-L).

See the Equipment Touch Installation and Setup Guide for detailed instructions.

See the System Touch Installation and Setup Guide for detailed instructions.

If multiple controllers share power but polarity was not maintained when they were wired, the difference between the controller's ground and the computer's AC power ground could damage the USB Link and the controller. If you are not sure of the wiring polarity, use a USB isolator between the computer and the USB Link. Purchase a USB isolator online from a third-party manufacturer.

To start up the VVT Zone II, you must configure certain points and properties. Appendix A (page 65) is a complete list of all the points and properties, with descriptions, defaults, and ranges. These properties affect the unit operation and/or control. Review and understand the meaning and purpose of each property before changing it.

• Unit Configuration properties (page 66)

• Setpoint Configuration properties (page 68)

• Service Configuration properties (page 77)

• Linkage properties (page 87)

See Appendix A (page 65) for a complete list of the controller's points/properties.

Engineering units shown in this document in the defaults and ranges are strictly for reference. You must

enter an integer only.

Page 45

Start-up

Configuring ZS Sensors

Main ZS

Sensor

Properties

Control Program

Service

Configuration

Details

NOTE

(page 77)

ZS Sensor Binder

ZS Zone Temp ZS Zone Humidity ZS Zone CO2 ZS model to show on graphic

Setpoint Adjustment

Occupancy

Override

Performing system checkout

NOTE

CAUTION

The VVT Zone II automatically detects 1 ZS temperature sensor set to address (1). This sensor is labeled

You must configure the ZS Sensor properties in the i-Vu® application or Field Assistant as follows:

• Add more ZS temperature, humidity, or CO2 sensors in the

settings on the

See Service Configuration

• Configuring the

○

• Configure

• Set

section. Ctrl+click on the property name to open the microblock popup and configure the

tab.

, and then the following as needed:

and

. See Setpoints (page 68).

properties. See Maintenance (page 83) for details.

• Alarm and Maintenance indications on the ZS Pro (display model) sensors. See Appendix C: ZS Sensor display for VVT Zone II (page 94).

tab >

for details.

1 Verify that all power and communication connections are correct and tight.

2 Verify that all zone terminals, ductwork, and zone controllers are properly installed and set according to

installation instructions and job requirements.

3 Verify that all air duct connections are tight.

4 Verify that zone terminal fans and system controls operate properly. Verify that actuator screws are properly

tightened.

5 At the zone terminals, check electrical system and connections of any optional electric reheat coil. If hot

water reheat is used, check piping and valves against job drawings.

6 Verify that all zone terminal dampers are fully open.

7 If using an air source with field-installed controls, make sure controls and sensors have been installed and

wired per manufacturer installation instructions.

8 Verify that the air source motor starter and, if applicable, the Hand/Off/Auto (HOA) switch are installed and

wired.

9 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.

You must use the i-Vu® application or Field Assistant to configure ZS Sensors.

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.

Page 46

Start-up

Commissioning the VVT Zone II

Properties > Configuration > Service Configuration

Pressure Dependent Control > Details

Test and Balance

Calibrated Damper Close

Calibrated Damper Open

Automatic Control

Locks

Fan

Lock value to

Apply

Properties > I/O Points

Hot Water Valve

Linkage

Airside Linkage Status

Active

CAUTION

Balancing the system

NOTE

Using Field Assistant or the i-Vu application:

1 Calibrate the damper travel.

a) Go to

b) Click

c) Click

2 For Parallel or Series Fan terminals – in the

select

3 For modulating hot water reheat – Go to

the controller is configured for Single Duct, make sure the air source fan is on. If ducted heat, verify the heat works by verifying that the SAT rises. For baseboard heat, physically check the heating element for proper temperature rise. Release the

4 Release the fan.

5 If the controller is part of a linked system, verify

. Click

and verify it travels to the full open.

to return the damper to normal operation.

in the droplist. Click

. Verify the fan's operation.

and verify it goes to the closed position.

section, select the

tab, then lock

shows

tab >

checkbox, then

to 100%. If

Pressing the actuator release button and moving the damper or disconnecting the actuator ribbon connector while the bypass controller is powered will cause the damper position to be out of calibration. To recalibrate the damper position, you must perform steps 1a–1c above or power cycle the controller.

Most VVT system airflow designs are based on cooling requirements which require a greater CFM (liters/second) flow than heating requirements. Using this balancing procedure, you will adjust the cooling airflow first. If the heating and cooling maximum airflow requirements are the same, you will not need to balance the heating airflow.

We recommend that the heating minimum airflow settings for all the zones in the system be set to maintain the air source’s design minimum heat CFM (liters/second) airflow across its heat exchanger to prevent damage to the equipment.

There are two methods of balancing the system:

• Use the i-Vu application or Field Assistant – Complete the following 3 steps to perform the system balancing.

• Use the Test & Balance program – Test & Balance can perform the 3 steps below, including shutting down

the linked air source and performing global commands to all zones in the system. Do items 1–5 in Step 1 below prior to using Test & Balance. See Test & Balance's Help for required steps to complete the balancing procedure.

Page 47

Start-up

Step 1: Prepare for balancing

Properties

Configuration > Service Configuration

Service Test

Fan Test

Step 2: Balance each zone

Properties > Control Program > Configuration > Service Configuration > Pressure Dependent Control Details

Cool Max

Damper Full Close

Fan

Lock value to

Apply

Cool Max

Pressure Dependent Control > Details

Cool Min

Fan

Lock value to

Apply

Fan

Lock value to

1 Log in to the i-Vu® application with an Administrator or Installer security level, or use Field Assistant.

2 Make sure the air source and its controller have been properly started and can run as a stand-alone unit.

3 Make sure the zone and bypass controllers have been addressed, commissioned, and started.

4 Verify that a manual damper is installed upstream of the zone damper. This damper will be used to adjust the

maximum design airflow to the space when the zone damper is at 100% open. We strongly recommend that you do not use the damper Cool or Heat Max damper configuration setting for this purpose. Exception: If the design maximum airflow for one mode is less the other, the maximum damper position configuration may be used to adjust the designed airflow of that mode.

5 Verify that zone controllers supplying multiple registers have manual dampers on each register branch duct

for balancing the design airflow through each register.

6 Disable the air source heating and cooling outputs using one of the following methods:

○ Physically disconnect the air source controller’s output wiring to the unit, then enable the fan.

○ In the i-Vu or Field Assistant tree, select the RTU Open or WSHP Open controller. Go to

and enable

all other outputs are disabled.

and

. Make sure

1 In the i-Vu® or Field Assistant tree, select the zone controller that is physically closest to the air source. Go to

tab.

2 Do one of the following:

○ Single Duct or Parallel Fan zone terminals – Click

open position. Check the zone for design cooling maximum airflow using certified measuring devices. Make adjustments using the manual volume damper located upstream of the zone damper.

○ Series Fan zone terminals – Click

position. Wait 30 seconds after the damper is closed, select the select

in the droplist. Click backwards. When the fan starts, click Check the zone for design cooling maximum airflow using certified measuring devices. See the zone terminal manufacturer's instructions to adjust the fan speed to meet design airflow requirements. After you set the fan speed, verify that the zone terminal plenum air intakes do not have a positive airflow. If so, adjust the manual volume damper located upstream of the zone damper so that the airflow is not positive or negative.

Note the zone’s name in the tree. You will need it when setting the system static pressure setpoint.

3 Check all branch duct terminal registers for design flow. If necessary, adjust the manual volume dampers in

the branch ducts.

4 On the zone’s

minimum position. Type the desired damper position next to value. If you do not have a design value, set the value to no less the 10% for minimum ventilation.

5 Parallel Fan Zone Terminals only - To adjust Parallel Fan airflow, make sure

's manufacturer's instructions on adjusting the fan speed to meet design airflow requirements. When finished, clear the

checkbox, then select On in the droplist. Click

checkbox.

to override the zone damper to its maximum

to override the zone damper to its fully closed

checkbox, then

. You must follow this procedure to prevent the fan from turning

to open the zone damper to its maximum position.

tab, click

to set the zone damper to its cooling

to adjust the airflow to the design

is active, select the

. See the zone terminal

Page 48

Start-up

Vent

Heating Max Damper Position

Cooling Max Damper Position

Heating Max

Damper Position

Reheat Min

Heat Max

Heat

Max

Heat Min

Step 3: Set the system static pressure

NOTE

Properties > Control Program > Configuration > Service Configuration

Pressure Dependent Control > Details

Cool Max

Heat Max

6 Click

to set the zone damper to its ventilation position. Type the desired damper position next to adjust the airflow to the design value. If you do not have a design value, leave the value at 50% for minimum ventilation.

7 Series Fan Zone Terminals only - If the zone maximum heating airflow design requirements are the same as

cooling, the the heating requirement is less than the cooling requirement, type the appropriate value in

8 If the terminal has ducted reheat, click

desired damper position next to

per the design requirements.

9 If the zone maximum heating airflow design requirements are the same as cooling, skip this step. If they are

less than cooling, click

to force the zone to its maximum heating position. Check the zone for

design heating maximum airflow using certified measuring devices. Type the damper position next to

10 To set the heating minimum airflow, click

sum of this setting for all zones in the system be equal to the minimum heat CFM (liters/second) requirements of the air source.

11 Repeat steps 1 through 10 for each zone until all zones have been balanced.

For the air source to deliver the required airflow, you must set the bypass controller's static pressure setpoint high enough to provide the demand but low enough to maintain reasonable noise levels. The bypass controller maintains static pressure by controlling a damper or a supply fan VFD. You need the following data to set the static pressure:

• The air source’s design maximum airflow in CFM (liters/second) (manufacturer’s data)

should be 100%, same as the

to force the zone to its reheat damper position. Type the

to adjust the airflow to its design reheat position.

, then type the damper position. We recommend that the

. If

• The system’s design external static pressure (inches or water). This is the amount of static pressure that the air source is designed to deliver at its maximum design airflow in CFM (liters/second) (supplied by the mechanical design engineer).

• The maximum cooling or heating (whichever is greater) CFM (liters/second) requirements for all zones connected to the air source

The air source fan must have been tested and certified that it can deliver the above requirements.

The sum of the maximum CFM (liters/second) requirements of all zones will generally exceed the air source's maximum CFM (liters/second) rating by 10 to 20%. This is by design and based on a factor known as diversity. It works on the basis that under normal design heating and cooling conditions, not every zone will be 100% open. Knowing this, you will need to force open only zones whose sum CFM (liters/second) is equal to the unit design CFM (liters/second) . With the bypass damper fully closed (0%) or supply fan VFD at 100%, the bypass controller's static pressure should be the controlling setpoint.

To set the static pressure:

1 Starting with zone furthest from the air source and working towards it, add up the maximum design CFM

(liters/second) airflow of the zones until the sum equals the air source’s design CFM (liters/second) (+/-5%). Note each zone that you included.

2 For each zone noted in step 1, go to

tab. Click

(whichever has the highest design

max airflow) to force the damper to its maximum open position.

Page 49

Start-up

Properties > Control Program > Status

Static

Pressure

Unit Configuration > Bypass Control

Details

Damper Position

VFD Output

Duct Static Pressure

Setpoint

Damper Position

VFD Output

Duct Static Pressure Setpoint

Damper Position

VFD Output

Duct Static

Pressure Setpoint

Damper Position

VFD Output

Pressure Dependent Control > Details

Automatic Control

Properties > Control Program > Configuration > Service

Configuration > Service Test

Service Test

Fan Test

CAUTION

3 In the tree, select the Bypass controller, then go to

○ If

○ If the

value, then go to

field.

the

is 100%. If not, repeat the process, adding .05” (.012 kPa) to the previous

is 0% or

is not 0% or

until the

field. Wait 1–2 minutes, then verify that the

4 For each zone in the system that was balanced, go to its

click

to return the zone to normal control.

tab.

is 100%, enter the static pressure in the

is not 100%, enter the static pressure +.1” (.025 kPa) in

is 0% or

is 100%.

5 In the tree, select the air source controller, then do one of the following.

a) For an RTU Open or WSHP Open controller, go to

and disable

and

b) For any equipment whose wiring was disconnected to insure that only the fan only was running,

reconnect it the wires for normal operation.

You must complete steps 4 and 5 to prevent loss of temperature control to the space and to

maintain normal operation of the system.

. Note the

tab, then

is 0% or

Page 50

Sequence of operation

Temperature sensors

Sensors

Notes

Space temperature sensors:

System Space

Temperature

Duct temperature sensors:

Sequence of operation

The VVT Zone II 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.

The VVT Zone II supports the following temperature sensors:

• Wireless Standard or Plus1

• ZS Standard, Plus, Pro2

• T553

• Duct Air Temperature (DAT)

• Supply Air Temperature (SAT)

To configure the control program for the desired user interaction with the sensor, see the Wireless Sensors

Application Guide. For detailed instructions, see the Wireless Sensors Installation Guide.

For basic user instructions, see the ZS Sensor User Guide. For detailed installation instructions, see the ZS

Sensors Installation Guide.

See the Carrier Sensors Installation Guide for details on T55 sensors.

You can average up to 5 wireless sensors.

You can average up to 5 ZS sensors - a combination of temperature,

humidity, and/or CO

sensors.

Push the sensor's override button from 2 to 10 seconds to initiate a timed override.

If a network space temperature value is used, that value must be written to the BACnet space temperature point (system_spt) at 1 to 5 minute intervals or on a COV of 0.1

°F (.06 °C) .

To reference another zone as your space temperature input, read the BACnet point zone_temp by using the network point

10K Type II. If the zone does not have ducted reheat, install a DAT sensor on the inlet of the damper.

If the zone has ducted reheat, install an SAT sensor downstream of the reheat source. The SAT is used in controlling the reheat.

The DAT/SAT determines the air source mode if Linkage communication fails or if the controller is stand-alone. See Air Source Mode Determination (page 54) for details.

Page 51

Sequence of operation

Zone airflow control

Vent

Position

Single duct with reheat

Reheat Min Damper Position

Parallel fan terminals

Parallel Fan On Value

Series fan terminals

Power Fail Start Delay

Damper Actuator(s)

The VVT Zone II provides pressure-dependent zone temperature control by modulating its built-in damper actuator to control the flow of primary air into the zone. The controller uses PID control to calculate the damper position based on the difference between the zone’s temperature and setpoints.

The air source mode determines if the primary air can meet the zone’s need. If the zone controller is in a linked system, the air source mode is determined by the air source. If the zone controller is stand-alone or if linkage communication fails, the mode is determined by the controller's SAT. See Air source mode determination (page

54). If the air source mode is the same as the zone’s local mode, the damper is positioned between the mode’s

configurable minimum and maximum damper position. If not, the damper is positioned at the mode's minimum damper position to insure sufficient minimum airflow at the air source.

When the air source mode is Vent and the zone’s temperature demand is satisfied, the damper moves to its

to increase airflow and ventilation to the space.

– The

allows an increase of primary airflow across the terminal’s ducted heating coil when the terminal is operating its local heat while the air source mode is Cool. This provides the ability to lower the cooling minimum airflow limits while providing the necessary airflow when the terminal is heating to ensure design load conditions and electric heater minimum airflow.

– The controller's

determines when the fan turns on to increase airflow at the zone’s diffusers and prevent cold air from dumping into the zone when the system mode is Cool. This is achieved by increasing the volume and temperature of the air exiting the diffusers. Should the zone’s damper close below the

, the parallel fan is energized to mix ceiling plenum air with the primary air to increase total airflow and ventilation to the zone. The fan turns off when the damper position opens to 1% above the setpoint.

The fan also starts in Heat mode if the zone is configured for ducted heat as described in Zone reheat control (page 48).

– The fan energizes when the air source fan is on if the zone controller is part of a linked system or in the unoccupied heat mode and the equipment fan is off. If the zone controller is stand-alone, the fan runs continuously. There is a fan start delay on transition to occupied, based on the the fan starts, the damper closes. The damper position must be less than 5% for 10 seconds before the fan starts to prevent the fan from starting backwards.

See Appendix B: VVT terminal modes (page 92).

– The VVT Zone II's built-in 35 in/lb (4 Nm) 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° and 90°, and it can be configured to move clockwise (default) or counterclockwise.

If the built-in actuator's torque is insufficient for large damper applications, the VVT Zone II's analog output can drive an external, 0-10 volt, high-torque actuator. Or, the controller can drive one or more additional slave actuators. A slave actuator must be mounted and configured to fully close the damper when the output signal is 0 volts. See Wiring field-supplied actuators to the analog output. (page 37)

. Before

Page 52

Sequence of operation

Zone reheat control

Heat Types

Maximum Heating SAT

Heating Lockout

Temperature

Modulating Hot Water / Steam Heating Heat

Maximum Heating SAT

SCR Electric Heat

Two-Position Hot Water / Steam Heating Heat

Maximum Heating SAT

Electric Auxiliary Heat

Maximum Heating SAT

Combination Modulating Baseboard / Electric Heat

Maximum Heating SAT

Parallel Fan Heat On Delay

Parallel Fan Heat

On Delay

The VVT Zone II can be configured for one of the following

• Modulating Hot Water/Steam

• Modulating SCR Electric

• Two Position Hot Water/Steam

• Staged Electric Heat (2 stages for Series/Parallel Fan, 3 stages for Single Duct.)

• Combination Modulating Baseboard/Staged Electric Heat (2 stages for Series/Parallel Fan, 3 stages for

Single Duct.)

All of the above except Combination Modulating Baseboard/Staged Electric Heat can be ducted or non-ducted (baseboard). For ducted heat and Combination Modulating Baseboard/Staged Electric Heat, an SAT sensor (33ZCSENSAT) must be installed in the duct downstream of the heat source. The controller has a configurable

terminal’s ducted heat is operating.

If the network provides the OAT, heating can be disabled if the OAT rises above the configured

water or steam valve connected to the discharge air heating coil. The valve opens and closes as needed to satisfy the zone's heating requirements. For ducted heat, the terminal’s heat supplements heat from the primary air source if it is in heating mode and is controlled so that the SAT does not exceed the [105°F (40.5°C) default]. For baseboard heating (non-ducted heat), the valve modulates to keep the zone’s temperature at the heating setpoint.

input. The output increases as needed to satisfy the zone’s heating requirements. For ducted heat, the terminal’s heat supplements heat from the primary air source if it is in heating mode and is controlled so that the SAT does not exceed the Maximum Heating SAT [105°F (40.5°C) default]. For baseboard heating (non-ducted heat), the SCR heat output modulates to keep the zone’s temperature at the heating setpoint.

water or steam valve connected to the discharge air heating coil. The valve opens and closes as needed to satisfy the zone's heating requirements. For ducted heat, the terminal’s heat supplements heat from the primary air source if it is in the heating mode and is controlled so that the SAT does not exceed the [105°F (40.5°C) default]. For non-ducted (baseboard) heating, the valve is controlled to keep the zone’s temperature at the heating setpoint.

supplements heat from the primary air source if it is in the heating mode and is controlled so that the SAT does not exceed the stages are controlled as needed to keep the zone’s temperature at the heating setpoint.

open hot water or steam valve connected to a perimeter baseboard radiation system and control up to 2 stages of ducted electric heat. The valve modulates to satisfy the zone's heating requirements. If the valve cannot meet the load, electric heat is used. The terminal’s electric heater supplements heat from the primary air source if it is in heating mode and is controlled so that the SAT does not exceed the default].

ceiling plenum. If the heating requirement is not met by the end of the delay, reheat is enabled.

to save energy. During the delay (15 minute default), only the fan operates to recycle heat from the

for supply air temperature control. The zone controller monitors the (SAT) when the

– The controller modulates a normally closed or normally open hot

– The controller modulates an SCR heat output connected to the SCR electric heat control

– The controller operates a normally closed or normally open hot

– The controller operates 1 or 2 stages of electric heat. For ducted heat, the terminal’s heat

– For Parallel Fan terminals only, the controller has a configurable

[105°F (40.5°C) default]. For non-ducted (baseboard) electric heat, the

– The controller can modulate a normally closed or normally

to meet the zone's heating requirements:

[105°F (40.5°C)

Page 53

Sequence of operation

Fan Heat Off Delay

Fan Off Delay

Demand control ventilation (DCV) and dehumidification using optional sensors

RH/CO2

NOTE

Enable

DCV Max Vent Airflow

Maximum RH Override Airflow

Demand Control Ventilation (DCV)

DCV Start Ctrl Setpoint

DCV Max Ctrl Setpoint

DCV Max Vent Damper Position.

Cooling Min Damper Position

Heating Min Damper Position

Dehumidification

Occupied RH Control Setpoint

Maximum RH

Override Airflow

NOTE

– For fan-powered terminals, the controller has a configurable

. After the heating coil de-energizes, the fan continues to run for the length of the delay to deliver to the zone any heat stored in the coil. The default delay of 2 minutes is optimal for ducted hot water coils. For ducted electric heat coils, the nominal delay is approximately 1 minute. For baseboard and non-ducted heat, the delay should be set at 0.

This feature applies to parallel fan terminals in both occupied and unoccupied mode and series fan terminals in the unoccupied mode if the air source fan is off.

The VVT Zone II’s 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). The controller's low and high sensor input configuration allows for a wide range of sensors.

The controller can also support both DCV and dehumidification functions, by using a system RH or CO2 sensor input connected to another controller.

If the connected sensor and/or system sensor value are used by the air source through Linkage, set the

appropriate control type to

input supports an optional CO2 sensor or Relative Humidity (RH) sensor. The sensor can

. If you do not need local control at the zone, set

to 0.

– Requires CO2 sensor

The zone controller monitors the CO2 sensor and can override the temperature control to respond to increasing CO2 levels when the zone is occupied. If the sensor’s value exceeds the

and the air source is in cooling or ventilation mode, the controller increases airflow to the zone at a base rate defined by ASHRAE, and then proportionally increases ventilation if the CO2 level continues to increase. If the sensor's value exceeds the

When the zone is unoccupied, the

, the controller modulates the damper to its

and

provide base

ventilation.

If the controller is configured for reheat, the heating setpoint is temporarily increased to a value halfway between the heating and cooling setpoints. If the zone temperature drops below the heating setpoint, the DCV override is temporarily suspended and the damper returns to normal control until the zone temperature is satisfied.

– Requires RH sensor

The zone controller monitors the RH sensor and can provide dehumidification if the sensor's value exceeds the

. If the zone is occupied and does not require heating, and the air source is operating in a cooling mode and providing primary air with a sufficiently low dew point, the controller overrides the damper control to increase airflow to the zone. During the dehumidification mode, the heating setpoint is temporarily increased to a value halfway between the heating and cooling setpoints to prevent overcooling the zone. The controller uses a PID control loop to provide dehumidification. The controller has a

If both control functions are enabled, the zone will control to the greatest calculated damper position of the

setting to prevent excessive airflow during dehumidification.

three values (temperature, RH, or IAQ).

Page 54

Sequence of operation

Occupancy

Occupancy Schedules

NOTES

Occupancy Schedules

Remote Occupancy Override

Remote

Occ

Override Normal Logic State

Learning Adaptive Optimal Start

learned heating capacity

learned cooling capacity

Learning Adaptive Optimal Start

Optimal Start

Learning Adaptive Optimal Start

Effective Setpoints

Setpoints

BAS On/Off

Occupancy Schedules

Disable

Occupied

Unoccupied, Optimal Start

The VVT Zone II's operation depends on the zone's occupancy state as determined by occupancy schedules or a remote occupancy override.

• A local schedule set up directly in the controller using a touchscreen device or Field Assistant.

• A network schedule from an i-Vu internal router. The VVT Zone II must be networked to an i-Vu Open Router or

an i-Vu internal router.

• A System Occupancy network point. This point links the controller occupancy to another controller in the

network so that multiple zones can follow the occupancy of another VVT Zone or other controller on the network.

To set up occupancy schedules, you first define a schedule for each day of the week and then define schedules for the exceptions, such as holidays. The exceptions can be based on a date, a date range, or a week and day.

• The

• A network schedule downloaded from the i-Vu application will overwrite a local schedule that was set up in a

touchscreen device or Field Assistant.

dry contact of an occupancy sensor located in the zone. The controller can override the occupancy state based on whether or not the space is actually occupied. If the occupancy sensor contact is in the same state as

opposite state, it overrides the zone into the unoccupied mode. The input can be configured for normally closed or normally opened contact types and is set to Open by default so that it does not affect the controller occupancy operation if left unused.

period of time to achieve the occupied setpoint by the time scheduled occupancy begins. This learning adaptive algorithm uses the setpoints prior to the occupied start time. The algorithm calculates a learned cooling and heating capacity during the previous unoccupied time. Set the

. When the achieved when occupancy begins. Adjustment amounts are defined in the thermographic color fields located directly above the

set to

– This function allows third party control of the controller occupancy.

to use this function. When set to

For additional information on ZS Sensor occupancy and override settings, see Maintenance (page 83) Points and Properties.

– An occupancy schedule can be one of the following:

property must be enabled (default).

– The controller monitors its

input that is typically connected to the isolated,

setting, the zone follows its normal occupancy schedule. If the contact is in the

– This function gradually adjusts the unoccupied setpoints over a specified

and

graph under

routine runs, adjustments are based on the color that is

values to calculate the effective

recovery period from 1 to 4 hours in

must be

is automatically disabled.

Page 55

Sequence of operation

Alarms

Space Temp Sensor Alarm

Space Temperature Alarm

Occupied Alarm Hysteresis

Supply Air Temperature Alarm

High SAT

Alarm Limit

Low SAT Alarm Limit

High SAT Alarm Limit

Maximum Heating SAT

Space Relative Humidity Alarm

Occ High RH Alarm Limit

Unocc High RH Alarm

Limit

Occ High RH Alarm Limit

Indoor Air Quality Alarm

Occupied High CO2 Alarm Limit

Filter Alarm

Filter Runtime

Filter Service Alarm

Timer

Reset Filter

Alarm

Airside Linkage Alarm

– The VVT Zone II 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. Normal operation resumes when the controller detects a valid sensor value.

setpoint. The occupied alarm setpoint is the configurable

– The controller generates an alarm if the space temperature exceeds the alarm

(5 °F [2.78 °C] default) subtracted from and added to the configured occupied heat and cool setpoints. The configurable unoccupied high and low alarm setpoints have a fixed 10 minute alarm delay. When a transition from unoccupied to occupied occurs or the occupied temperature setpoints are changed, causing an alarm condition, the controller automatically calculates an alarm delay of 10 minutes for each degree of change. The delay prevents unnecessary alarms and gives the zone time to correct the alarm condition. The alarm returns to normal when the space temperature goes between the current mode’s setpoints.

(120°F [48.9°C] default) or falls below the than 5 minutes. The hysteresis for return to normal is 3 a value at least 15

°F (8.3 °C) above the

– The controller generates an alarm if the SAT exceeds the configured

°F (1.6 °C) . The

or the maximum discharge temperature from

(45°F [7.2°C] default) for more

should be set to

the air source, whichever is greater.

alarm if the sensor's value exceeds the

(100% rh default). The controller provides a 30-minute alarm delay during unoccupied periods. During

occupied periods, the controller uses the

– If a Space Relative Humidity (RH) sensor is installed, the controller generates an

(100% rh default) or the

. When a transition from unoccupied to occupied occurs or the occupied high alarm limit is lowered causing an alarm condition to occur, the controller automatically calculates an alarm delay of 5 minutes per %RH multiplied by the amount of the change. The delay prevents unnecessary alarms and gives the zone time to correct the alarm condition. The hysteresis for return to normal is 3% RH.

if the sensor's value exceeds the

– If a CO2 sensor is installed, the controller generates an alarm during occupied periods

. When a transition from unoccupied to occupied occurs, or if the occupied alarm limit is changed to a value that causes an alarm condition to occur, the controller automatically calculates an alarm delay based on the error from setpoint (15 minutes minimum, 4 hours maximum). The delay prevents unnecessary alarms and gives the zone time to correct the alarm condition. To disable the IAQ alarm, set

to 0. The default value is 1100ppm. The hysteresis for

return to normal is 100ppm.

operation and generates an alarm when the

– For series or parallel fan-powered terminals, the controller monitors the accumulated hours of fan

hours exceed the configured

limit. The default value is 0 hours which disables the alarm. The alarm can be reset by setting

to On or resetting the configured alarm limit to 0 hours.

– The slave zone controller generates an alarm if it does not receive linkage information for 5 minutes. If the controller is the VVT Master, it generates an alarm if it does not communicate with its air source for 5 minutes. A return-to-normal is generated after successful Linkage communication resumes.

Page 56

Sequence of operation

Demand limiting

Linkage

Linkage Callers

Inhibit Cooling Call from this zone?

Yes

Inhibit Heating Call from this zone?

Yes

Demand limiting is a cost-saving strategy to reduce energy consumption. The strategy expands the setpoints when the system reaches one of 3 levels of consumption. With the expanded setpoints, the equipment works less, thereby saving energy.

If the VVT Zone II receives a demand limit signal through the network, it expands its setpoints based on the demand level. The default amounts are:

• Demand Level 1: 1

• Demand Level 2: 2 °F (1.1 °C)

°F (.6 °C)

• Demand Level 3: 4

The VVT Master gathers the following information from the slave zone controllers: occupancy status, setpoints, zone temperature, relative humidity, CO mathematical calculations and algorithms on the data and then sends the composite information to the air source. The VVT Master receives information from the air source such as mode, supply air temperature, and outside air temperature, if present, and passes that information to all linked controllers.

The VVT Master determines system operation by prioritizing heating and cooling requirements from all the zones based on their occupancy and demand. The VVT Master scans the system continuously to determine if any zones are occupied. Occupied zones are a higher priority than unoccupied zones. The VVT Master evaluates all the occupied zones' heating or cooling demands and sends a request to the air source for:

• Cooling, if the number of occupied zones with cooling demands exceeds the number of occupied zones with

• Heating, if the number of occupied zones with a heating demand exceeds or is equal to the number of

A Linkage caller zone is determined by two user-adjustable parameters, A binary value is used to inhibit any individual zone from becoming a heat or cool caller.

If Likewise, if

Next, if both of the above are set to No, then the amount of zone temperature deviation from setpoint determines when a zone becomes a caller. For cooling, this is determined by the amount of the yellow setpoint band. A zone must exceed this band and enter into the orange band to become a cooling caller. The yellow band by default is 1 be counted as a cooling request.

The light blue band is used to determine the deviation required to become a heating caller. It is also set to a default value of 1

If no zones are occupied, or no occupied zones require heating or cooling, the VVT Master performs the evaluation described above for the unoccupied zones.

°F (2.2 °C)

level, damper position, and optimal start data. The VVT Master performs

heating demands, and the demand is greater than or equal to the number of configured

is set to

, then this zone is ignored when determining total cooling calls.

Is set to

, then this zone’s heating requirement will be ignored.

°F (.5 °C), therefore the space temperature must exceed the cooling setpoint by more than 1 °F (.5 °C) to

°F (.5 °C), but you can adjust it.

Page 57

Sequence of operation

The VVT Master then gathers the following information and sends it to the air source:

• The setpoints and zone temperature from the zone with the greatest demand for the requested air source

mode (heating or cooling). (This zone is called the reference zone.)

• The system occupancy status

• Most open damper position from any zone

• RH and CO

values (if applicable)

The air source responds by sending the air source mode, supply air temperature, and outside air temperature. The air source verifies the mode by comparing its supply air temperature to the space temperature received through Linkage. See the air source documentation for operation and parameters used to verify its mode. This verification allows the VVT system to determine if the desired air source mode is actually being provided. For example, if the VVT Master sends a request for heating and the air source does not have heat or it’s heat has failed, the air source's actual mode indicates that and its current mode is sent to the zones so that they can control accordingly.

The system remains in that mode until all zones of that demand are satisfied or until the System Mode Reselect Timer (factory default is 30 minutes) causes a forced re-evaluation of the system. If there is no demand for the opposite mode, the reselect timer starts again and the current mode continues until all zones are satisfied or until the reselect timer expires, repeating the process. If there is a demand for the opposite mode, the VVT Master sends the reference zone's space temperature and setpoints to the air source and restarts the reselect timer. The air source re-evaluates its demand based on the new information and goes to the Vent mode until the new mode can be verified as described above. The amount of time this takes is determined by the air source’s operating parameters.

The VVT Master continuously evaluates the system and updates the air source with the most current system demand. Based on the evaluation, the reference zone can change from one zone to another. The evaluation process continues until there is no demand from any zone or the 30 minute timer causes a re-evaluation of the system conditions.

If no heating or cooling is required or the current air source mode is satisfied, the VVT Master calculates the weighted average of the occupied and unoccupied heating and cooling setpoints. It also calculates a zone temperature that is midway between the setpoints (occupied or unoccupied based on the system’s current occupancy status). This information, plus the occupancy status, is sent to the air source so that its current mode is disabled and the unit ceases heating or cooling operation. If the system is occupied, the air source fan and OA damper, if applicable, operate to maintain proper ventilation.

Page 58

Sequence of operation

Linkage modes and operation

Linked air source modes

OFF

WARMUP

HEAT

FREECOOL

COOL

PRESSURIZATION EVACUATION

VENT

Local air source modes

HEAT

mode based on its own SAT. The following modes can be sent by the air source depending on its capability and configuration:

Air source fan is off. Terminal damper is positioned approximately 70%

Air source fan is on and providing first cycle of heat when changing from

Air source fan is on and providing heat. The terminal modulates its primary

Air source fan is on and providing cooling using only the economizer and

Air source fan is on and providing cooling. The terminal modulates its

Evacuation is usually the result of a fire-life safety input at the air source

All terminals treat VENT mode the same as the COOL mode. For VVT

See the air source’s installation manual for more specific operation.

controller assumes that the fan is always on and monitors its SAT sensor to determine if the primary air source is providing heating, cooling, or recirculating air in a fan-only or ventilation mode.

For Series or Parallel Fan controllers when the zone terminal fan is off or for

– In a linked system, the air source determines its operating mode and qualifies that

open to allow for system restart.

unoccupied to occupied. It may also be used as an equipment safety to increase system airflow. The terminal’s heating setpoint temporarily increases to the midpoint between the configured occupied heating and occupied cooling setpoints.

air damper to maintain the current heating setpoint.

usually during an unoccupied period. The terminal modulates its primary air damper to maintain the midpoint between the configured occupied heating and occupied cooling setpoints.

primary air damper to maintain the current cooling setpoint.

Air source supply fan is on usually as a result of a fire-life safety input being

active. It may also be used as an equipment safety to increase system airflow. The terminal modulates its primary air damper to provide the configured maximum cooling airflow.

being active. The terminal fully closes its primary air damper and disables its terminal fan, if equipped.

terminals, VENT modes allows for an increase in airflow. VVT terminals use the greater of the configured Vent Damper Position or the Minimum Cooling Damper Position as the minimum during the VENT mode.

– If the zone controller is stand-alone, or if linkage communication fails, the zone

single duct controllers: The zone’s local heat has not operated for at least 5 minutes, and the SAT is more than 5 temperature. If the terminal fan is on, the SAT must be at least 8 (4.4

°C) more than the space temperature. In all cases, Heat mode is maintained until the SAT drops 2 below the space temperature.

°F (2.7 °C) warmer than the space

°F

°F (1.1 °C)

Page 59

Sequence of operation

VENT

COOL

The zone’s local heat has not operated for at least 5 minutes and the SAT is

between 65 (18.3°C) and 80°F (26.6°C).

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 (18.3°C).

See Appendix B: VVT terminal modes (page 92).

Page 60

To adjust the driver properties

Driver Properties

Properties

Driver

Settings

TouchScreen Control

TouchScreen Schedule Edit Enable

Module Clock

Clock Fail Date and Time

TIP

Time Synch Sensitivity (seconds)

Network Microblocks

Number of poll retries before Network Input Microblocks indicate failure

Periodic rebinding interval

To adjust the driver properties

Use the following if you want to change the driver's properties in the i-Vu® interface.

1 On the i-Vu® navigation tree, right-click the VVT Zone II and select

2 Make changes as needed on the

page for

and any of its children.

On the

page >

tab, you can change the Module clock synchronization and failure. See table below.

This field is checked automatically to allow a user to edit this controller's schedules from an Equipment Touch's Schedules screen. Uncheck to disable.

Date and time the control program uses when controller's time is invalid.

Use an occupied date and time (such as a Tuesday at 10 a.m.) so the equipment does not operate in unoccupied mode if the controller loses power during occupancy.

When the controller receives a time sync request, if the difference between the controller's time and the time sync's time is greater than this field's value, the controller's time is immediately changed. If the difference is less than this field's value, the controller's time is slowly adjusted until the time is correct.

The maximum number of retries after the initial attempt that a Network microblock will attempt to communicate with its target device. If unsuccessful, the point will transition to an idle state for 30 seconds before attempting to communicate again. Change this field only if directed by Technical Support.

If a microblock uses a wildcard in its address, this timer determines how often the

microblock will attempt to find the nearest instance of its target. For example, if an outside air temperature address uses a wildcard, a VAV application will look for the outside air temperature on the same network segment or on the nearest device containing that object.

Page 61

To adjust the driver properties

BACnet COV Throttling

Enable COV Throttling

Excessive COV

Common Alarms

Trend Sampling

Collect a daily midnight sample for all points in this controller that are sampling on COV

Device

Configuration

NOTE

Max Masters and Max Info Frames

Under normal circumstances, COV Throttling should be enabled to prevent

excessive network traffic if an object's COV Increment is set too low. See EXCEPTION below.

When enabled, if an object generates excessive COV broadcasts (5 updates in 3 seconds), the driver automatically throttles the broadcasts to 1 per second. Also, if the object's value updates excessively for 30 seconds, an alarm is sent to the iVu® application listing all objects that are updating excessively. A Return-tonormal alarm is sent only after all objects have stopped updating excessively.

EXCEPTION: In rare circumstances, such as process control, a subscribing object may require COV updates more frequently than once per second. For these situations, clear this checkbox, but make sure that your network can support the increased traffic. You will also need to disable the the driver's

alarms under

For values that change infrequently, select to verify at midnight daily that the point is still able to communicate trend values.

On the

page, you can view the following properties:

• BACnet device object properties for the VVT Zone II

• VVT Zone II network communication

The three APDU fields refer to all networks over which the VVT Zone II

communicates.

Apply only if the VVT Zone II is on an MS/TP network.

Page 62

To adjust the driver properties

Notification Classes

Priorities

NOTE

Priority range

Network message priority Priority of Off-Normal

Priority of Fault

Priority of Normal

Ack Required for Off-Normal, Fault, and Normal

TIP

Alarm

Enable/Disable

Recipient List

Recipients Add Recipient Description

Recipients

Recipient Type

Address

Issue Confirmed

Notifications). This use is rare.

Recipient Device Object Identifier

Device Instance

Process Identifier

Issue Confirmed Notifications

Transitions to Send

Alarms in the i-Vu® application use Notification Class #1. A BACnet alarm's Notification Class defines:

• Alarm priority for Alarm, Fault, and Return to Normal states

• Options for BACnet alarm acknowledgment

• Where alarms should be sent (recipients)

00–63 Life Safety

64–127 Critical Equipment

128–191 Urgent

192–255 Normal

BACnet priority for Alarms.

BACnet priority for Fault messages.

BACnet priority for Return-to-normal messages.

BACnet defines the following Network message priorities for Alarms and

Events.

Specifies whether alarms associated with this Notification Class require a BACnet Acknowledgment for Off-Normal, Fault, or Normal alarms.

You can require operator acknowledgment for an Alarm or Return-to-

normal message (stored in the i-Vu® database). In the i-Vu® interface on the

source or an alarm category.

tab, change the acknowledgment settings for an alarm

The first row in this list is from the i-Vu® application. Do not delete this row. Click

if you want other BACnet devices to receive alarms associated with this

Notification Class.

Name that appears in the

Use

table.

(static binding) for either of the following:

• Third-party BACnet device recipients that do not support dynamic binding When you want alarms to be broadcast (you must uncheck

•

Days and times The days and times during which the recipient will receive alarms.

Type the the

field.

from the network administrator for third-party devices in

Change for third-party devices that use a BACnet Process Identifier other than 1.

The i-Vu® application processes alarms for any 32-bit Process Identifier.

Select to have a device continue sending an alarm message until it receives delivery confirmation from the recipient.

Uncheck the types of alarms you do not want the recipient to get.

Page 63

To adjust the driver properties

Calendars

Schedules

Common Alarms

Common alarms:

• Module Halted

Excessive COV

Module Generated Alarm

Description

Alarms

Events

Alarm Category and Alarm Template

Enable Notification Class

Calendars are provided in the driver for BACnet compatibility only. Instead, use the interface.

On these pages, you can enable/disable, change BACnet alarm properties, or set delays for the following BACnet alarms:

• All Programs Stopped

• Duplicate Address

• Locked I/O

• Control Program

• Program Stopped

•

Short message shown on the i-Vu®

type of alarm is generated.

feature in the i-Vu®

page or in an alarm action when this

See Alarms in i-Vu® Help.

Clear these checkboxes to disable Alarm or Return to normal messages of this

type from this controller.

Do not change this field.

Page 64

To adjust the driver properties

Specific Events

Specific alarms:

NOTES

Module Generated Alarm

Description

Alarms

Events

Alarm Category and Alarm Template

Enable Notification Class

Switches, Jumpers, Options

Act Net Network Details

NOTE

Act Net

CAUTION

Duplicate address on network

No communication with device

Device Status

Act Net Address Setting

On these pages, you can enable/disable, change BACnet alarm properties, or set delays for the following BACnet alarms:

• Flow Control Alarm

• Reheat Valve Alarm (future use)

• To set up alarm actions for controller generated alarms, see See Alarms in i-Vu® Help.

• Reheat Valve Alarms are for future use.

Short message shown on the i-Vu®

Clear these checkboxes to disable Alarm or Return to normal messages of this

Do not change this field.

The

page shows the current physical settings on the VVT Zone II.

Act Net Statistics

type of alarm is generated.

See Alarms in i-Vu® Help.

type from this controller.

page or in an alarm action when this

The actuator serial numbers are automatically read and filled in by the i-Vu® application. Only those devices that are physically connected or in the control program will show in the table.

See To get the Carrier VVT Zone II serial number (page 62) for the controller serial number.

The

network shows the VVT Zone II’s actuator has Address 1.

contact Carrier Control Systems Support. Do not use Systems Support.

If you see

unless directed by Carrier Control

under

Page 65

Troubleshooting

NOTE

LED's

If this LED is on...

Status is...

Power

Rx Tx

DO#

CCW

Run

Error

If Run LED shows...

And Error LED shows...

Status is...

Run

Error

Run

One or more programs stopped

Troubleshooting

If you have problems mounting, wiring, or addressing the VVT Zone II, contact Carrier Control Systems Support.

To help you troubleshoot, obtain a Module Status (Modstat) from the controller and review the System Error

and Warning details.

The LED's on the VVT Zone II show the status of certain functions. Verify the LED patterns by cycling power to the controller and noting the lights and flashes.

The VVT Zone II has power.

The VVT Zone II is receiving data from the network segment

The VVT Zone II is transmitting data over the network segment

The digital output is active

The actuator motor is turning clockwise

The actuator motor is turning counterclockwise

The

and

LED's indicate controller and network status.

1 flash per second 1 flash per second, alternating

with the

2 flashes per second Off Normal

2 flashes per second 2 flashes,

alternating with

2 flashes per second 3 flashes,

then off

2 flashes per second 4 flashes, then pause Two or more devices on this network have the

LED

The controller files are archiving. Archive is complete when

Five minute auto-restart delay after system error

LED

The controller has just been formatted

same network address

LED stops flashing.

2 flashes per second 1 flash per second The controller is alone on the network

2 flashes per second On Exec halted after frequent system errors, due to:

5 flashes per second On Exec start-up aborted, Boot is running

• Controller halted

• Program memory corrupted

•

Page 66

Troubleshooting

If Run LED shows...

And Error LED shows...

Status is...

Run

NOTE

Error

To get the serial number

Core

Main) board hardware

Module Status

5 flashes per second Off Firmware transfer in progress, Boot is running

7 flashes per second 7 flashes per second,

alternating with

14 flashes per second 14 flashes per second,

alternating with

On On Failure. Try the following solutions:

If you resolve the issue but the

If you need the VVT Zone II's serial number when troubleshooting, the number is on a Module Status report (Modstat) under

(or

Ten second recovery period after brownout

LED

Brownout

LED

• Turn the VVT Zone II off, then on.

• Download memory to the VVT Zone II.

• Replace the VVT Zone II.

LED does not turn off, cycle power to the controller.

To obtain a modstat in the i-Vu® interface:

1 Select the VVT Zone II in the navigation tree.

2 Right-click and select

Page 67

Troubleshooting

To restore factory defaults

CAUTION

Gnd

24 Vac

Format Short pins

Error

Run

To replace the battery

CAUTION

all custom settings. It is recommended to restore the factory defaults only under the guidance of Carrier Control Systems Support.

To erase volatile memory data and restore factory default configuration settings:

1 Pull the screw terminal connector from the controller's power terminals labeled

the address switches are not set to 0, 0.

2 Short the

3 Insert the power screw terminal connector into the VVT Zone II's power terminals.

4 Continue to short the jumper until the

5 Remove the short.

This erases all archived information and user-configuration settings. You will have to reconfigure

and

. Make sure

jumper’s pins and maintain the short for steps 3 and 4.

LED flashes three times in sync with the

LED.

If the VVT Zone II experiences a power outage and the control program stops functioning, replace the battery.

You need to replace the battery if the voltage measures below 2.9 volts when the controller is not powered.

1 Verify that the VVT Zone II's power is on.

will be lost.

2 Remove the VVT Zone II's cover.

3 Remove the battery from the controller, making note of the battery's polarity.

4 Insert the new battery, matching the battery's polarity with the polarity indicated on the controller's cover.

5 Replace the VVT Zone II's cover.

6 Download the VVT Zone II.

If the controller's power is not on when replacing the battery, your date, time, and trend data

Page 68

Compliance

FCC Compliance

IMPORTANT

NOTE

CE Compliance

WARNING

BACnet Compliance

Compliance

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1 This device may not cause harmful interference.

2 This device must accept any interference received, including interference that may cause undesired

operation.

authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if it is not installed and used in accordance with this document, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

Any changes or modifications not expressly approved by manufacturer could void the user's

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

This is a Class B product. In a light industrial environment, this product may cause radio

interference in which case the user may be required to take adequate measures.

Compliance of listed products to requirements of ASHRAE Standard 135 is the responsibility of BACnet International. BTL

is a registered trademark of BACnet International.

Page 69

Appendix A: VVT Zone II Points/Properties

NOTE

Status

Navigation:

i-Vu® / Field Assistant:

Properties > Control Program > Status

Point Name/Description

Range

Terminal Mode

Terminal Type Space Temperature - Prime Variable Damper Position

Supply Air Temperature Heating Capacity

Baseboard Heating Capacity

Outdoor Air Temperature Fan

Term Type

Parallel Fan

Series Fan

Space Relative Humidity

Service Configuration

Hardwired Sensor

RH Sensor

Indoor Air Quality CO2 (ppm)

Service Configuration

Hardwired Sensor

CO2 Sensor

Shutdown

Active

Appendix A: VVT Zone II Points/Properties

Engineering units shown in this document in the defaults and ranges are strictly for reference. You must enter an integer only.

– The controller's current operating status. R: Off

Heating Warm-up Vent Cooling Dehumidify Reheat Pressurize Evacuate Shutdown IAQ Override Air Balancing

– The type of zone terminal that the controller is installed on. R: Single Duct

– The space temperature value currently used for

control.

– The current damper position. R: 0 to 100%

– Displays the current supply air temperature. R: -56 to 245°F

– The current reheat capacity when the zone is configured for reheat. R: 0 to 100%

– The current modulating baseboard heat capacity when

the zone is configured for Combination Baseboard and Ducted Heat.

– The current outdoor air temperature from a linked air

source, if available, or from another network source.

– The status of the terminal fan if

– The current space relative humidity if

– When

delays and close the damper.

is set to

– The current IAQ value if

is set to

, disables all control functions, at normal equipment time

or, you have a valid ZS RH sensor.

or, you have a valid ZS CO2 sensor.

Parallel Fan Series Fan

R: -56 to 245°F

(-48.9 to 118.3°C)

R: 0 to 100%

R: -56 to 245°F

(-48.9 to 118.3°C)

. R: On/Off

R: 0 to 100%rh

R: 0 to 5000ppm

Inactive

Inactive/Active

Page 70

Appendix A: VVT Zone II Points/Properties

Unit Configuration

Navigation:

i-Vu® / Field Assistant:

Properties > Control Program > Configuration > Unit Configuration

Point Name/Description

Default/Range

Heat Enable

Parallel Fan Heat On Delay

Term Type

Parallel

Term Type

Single Duct

Fan Off Delay

Maximum Heating SAT

High SAT Alarm Limit

Maximum Heating SAT

Alarm Configuration

High SAT Alarm Limit

Max RH Override Position

DCV Max Vent Damper Pos Filter Service Alarm Timer

Filter Alarm

T55 Pushbutton Override

Setpoint Adjustment

Setpoint Adjustment Range

Heating Lockout Temperature

– Enables the reheat function. D:

– The delay in reheat coming on after the zone has a heating demand. If the to heat the space prior to bringing mechanical reheat. If the we recommend that you set this value to 1 minute.

, this allows the fan time to use plenum air

– Fan-type terminals only. The amount of time the terminal fan continues

to operate after a heating demand is satisfied.

– The maximum supply air temperature allowed while ducted heat is operating. Ducted type supplemental heat is controlled so that it will not exceed this limit or the configured

Set the

limit to 5°F (2.8°C) above the desired maximum supply air temperature you would expect. Refer to to properly set this parameter.

– The maximum damper position that the RH function can override the damper to. When active, the damper modulates to the temperature control position, RH override position, or the IAQ override position, whichever is greater.

– The maximum damper position that the IAQ function can override the damper to. When active, the damper modulates to the temperature control position or the IAQ override position, whichever is greater.

– The amount of time a Parallel or Series fan will run before

generating a

. Set to 0 to disable the alarm.

– Enables or disables the use of a pushbutton override from a

local space temperature sensor.

Enable

Disable/Enable

15 minutes

0 to 30 minutes

120 seconds

0 to 180 seconds

105°F (40.6°C)

100 to 140°F (37.7 to 60°C)

60%

0 to 100%

70%

0 to 100%

0 hr

0 to 9999 hr

Enable

Disable/Enable

– Enables the setpoint adjustment slider on the SPPL space

sensor.

- The maximum amount that a user can adjust the setpoint

on the local ZS or SPT sensor.

– Supplemental reheat is disabled if outside air temperature exceeds this value. Supplemental reheat is enabled when the outside air temperature falls below a fixed hysteresis of 2 if there is a valid network outside air temperature.

°F (1.1 °C). This function is active only

Enable

Disable/Enable

°F (1.1 °C)

0 to 5 °F

(0 to 2.7

70°F (21.1°C)

-60 to 150°F (-51.1 to 65.5°C)

°C)

Page 71

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

Power Fail Restart Delay Occupancy Schedules

Enabled

Disabled

BAS On/Off

System

Occupancy

Occ Override Delay

T55 Override Duration

Pushbutton Override

Enable

Local Sensor Calibration

Space Temperature

Space Temp Calibration

Supply Air Temperature

Supply Air Temp Calibration

Space Relative Humidity –

Relative Humidity Calibration

Status > Space Relative Humidity

– How long the controller delays normal operation after the power is restored. This is typically used to prevent excessive demand when recovering from a power failure. Applies to Series Fan start delay when system mode transitions from unoccupied to occupied. A delay of no greater than 120 seconds is recommended for Series Fan applications.

– If

, the controller stores and follows a schedule sent

over the network or programmed locally through a touchscreen or Field Assistant. If

, the controller occupancy is controlled from the

network point.

– The amount of time the controller remains occupied after the

remote occupancy switch returns to the unoccupied position.

– The amount of time that the controller runs in the occupied

mode when a user presses the T55 sensor's override button for 1 to 10 seconds.

must be set to

– The current space temperature. R: -56 to 245°F

– A calibration offset value to allow the local space temperature sensor to be adjusted to match a calibrated standard measuring the temperature in the same location.

– Displays the current supply air temperature. R: -56 to 245°F

– A calibration offset value to allow the supply air temperature sensor to be adjusted to match a calibrated standard measuring the temperature in the same location.

Displays the current value of relative humidity sensor, if

present.

– You can enter a calibration offset for the relative humidity. The offset is added to or subtracted from the controller's RH input value, and the calculated value is shown in the

60 seconds

0 to 600 secs

Enable

Disable/Enable

15 minutes

0 to 240 minutes

1 hr

1 to 4 hr

(-48.9 to 118.3°C)

0°F/C

-9.9 to 10 (-5.5 to 5.5

(-48.9 to 118.3°C)

°F/ °C

-9.9 to 10 °F (-5.5 to 5.5

R: 0 to 100%

-15 to 15%rh

°F

°C)

Page 72

Appendix A: VVT Zone II Points/Properties

Setpoints

Navigation:

i-Vu® / Field Assistant:

Properties > Control Program > Configuration > Setpoints

Heating

Cooling

NOTE

Occupied Setpoints

Default

Range:

Demand Level

Point Name/Description

Occupied

1 2 3

Occupied Heating

Occupied Cooling

Select a color band on the setpoint graph to see the current setpoints in the graphic are Fahrenheit. See setpoint descriptions below.

This graphic is an example only. Your setpoints may differ.

and

fields. The values in this

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. With the expanded setpoints, the equipment works less, thereby saving energy. By default, Demand Level 1 expands the occupied heating and cooling setpoints by 1

°F ( .5°C), Demand Level 2 by 2 °F (1.1 °C), and Demand Level 3 by 4 °F (2.2 °C). If the occupied heating or cooling setpoints change, the (effective) demand level setpoints automatically change by the same amount. See Sequence of Operation (page 46) for more information.

– Green The heating setpoint the controller maintains while in occupied mode.

– Green The cooling setpoint the controller maintains while in occupied mode.

70°F (21.1°C)

40 to 90°F (4.4 to

32.2°C)

76°F (24.4°C)

55 to 99°F (12.7 to

37.2°C)

-40 to 245°F (-40 to 118.3°C)

69°F (20.5°C)

77°F (25°C)

68°F (20°C)

78°F (25.5°C)

66°F (18.9°C)

80°F (26.6°C)

Page 73

Appendix A: VVT Zone II Points/Properties

Default

Range:

Demand Level

Point Name/Description

Occupied

1 2 3

Occupied Heating 1

Occupied Heating

Occupied Heating 1

Occupied Heating

Occupied Heating 2

Occupied Heating

Occupied Heating 1

Occupied Cooling 1

Occupied

Cooling 1

Occupied Cooling

Occupied Cooling 1

Occupied Cooling

Occupied Cooling 2

Occupied

Cooling 2

Occupied Cooling 1

Unoccupied Setpoints

Point Name/Description

Default/Range

Unoccupied Heating

Unoccupied Cooling

Unoccupied Heating 1

Unoccupied Heating

Unoccupied Heating 1

Unoccupied Heating

– Light Blue

The space temperature must be less than the

setpoint for the VVT Master to consider the zone a heating caller in a linked system. In a single-zone application, the heating requirement begins as soon as the space temperature falls below the

value be set no less than 0.5 °F (.27 °C)

below the

– Dark Blue

The space temperature must be less than the

setpoint to generate a low space temperature alarm. We recommend that this value be set no less than 0.5 below the

– Yellow

The space temperature must be greater than the

setpoint for the VVT Master to consider the zone a cooling caller in a linked system. In a single-zone application, the cooling requirement begins as soon as the space temperature exceeds the

value be set no less than 0.5 °F (.27 °C)

above the

– Orange

The space temperature must be greater than the

setpoint to generate a high space temperature alarm. We recommend that this value be set no less than 0.5 (.27

°C) above the

setpoint. We recommend that the

setpoint.

°F (.27 °C)

setpoint.

setpoint. We recommend that the

setpoint.

°F

setpoint.

69°F (20.5°C)

67°F (19.4°C)

77°F (25°C)

79°F (26.1°C)

-40 to 245°F (-40 to 118.3°C)

68°F (20°C)

66°F (18.9°C)

78°F (25.5°C)

80°F (26.6°C)

67°F (19.4°C)

65°F (18.3°C)

79°F (26.1°C)

81°F (27.2°C)

65°F (18.3°C)

63°F (17.2°C)

81°F (27.2°C)

83°F (28.3°C)

The heating setpoint the controller maintains while in unoccupied mode.

The cooling setpoint the controller maintains while in unoccupied mode.

The space temperature must be less than the VVT Master to consider the zone an unoccupied heating caller in a linked system. In a single-zone application, the unoccupied heating requirement begins as soon as the space temperature falls below the the

– Gray

– Light Blue

setpoint. We recommend that

value be set no less than 0.5 °F (.27 °C) below the

setpoint.

setpoint for the

55°F (12.7°C)

40 to 90°F (4.4 to 32.2°C)

90°F (32.2°C)

45 to 99°F (7.2 to 37.2°C)

54°F (12.2°C)

40 to 90°F (4.4 to 32.2°C)

Page 74

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

Unoccupied Heating 2

Unoccupied Heating 1

Unoccupied Cooling 1

Unoccupied Cooling Unoccupied Cooling 1 Unoccupied Cooling

Unoccupied Cooling 2

Unoccupied Cooling 1

Point Name/Description

Default/Range

Heating Capacity

Heating Design Temp

Cooling Capacity

Cooling Design Temp

– Dark Blue

The space temperature must be less than the

setpoint to generate an unoccupied low space temperature alarm. We recommend that this value be set no less than 0.5

°F (.27 °C) below the

setpoint.

– Yellow

The space temperature must be greater than the

setpoint for the VVT Master to consider the zone an unoccupied cooling caller in a linked system. In a single-zone application, the unoccupied cooling requirement begins as soon as the space temperature exceeds the

setpoint. We recommend that the

value be set no less than 0.5 °F (.27 °C) above the

setpoint.

– Orange

The space temperature must be greater than the

setpoint to generate an unoccupied high space temperature alarm. We recommend that this value be set no less than 0.5

°F (.27 °C) above the

setpoint.

– Used for Optimal Start, this is the rate at which the zone temperature changes when the heating system runs at full capacity to maintain designed occupied heating setpoint.

– The geographically-based outdoor air temperature at which the heating system must run constantly to maintain comfort. This information is available in ASHRAE publications and most design references.

– Used for Optimal Start, this is the rate at which the zone temperature changes when cooling system runs at full capacity to maintain designed occupied cooling setpoint.

– The geographically-based outdoor air temperature at which the cooling system must run constantly to maintain comfort. This information is available in ASHRAE publications and most design references.

52°F (11.1°C)

40 to 90°F (4.4 to 32.2°C)

91°F (32.7°C)

45 to 99°F (7.2 to 37.2°C)

93°F (33.9°C)

45 to 99°F (7.2 to 37.2°C)

°F (1.6 °C)/hr

0 to 120 °F (0 to 66.6

0°F/C

-100 to 150°F (-73.3 to 65.5°C)

°F (1.6 °C)/hr

0 to 140 °F (0 to 77.7

100°F (37.7°C)

-100 to 150°F (-73.3 to 65.5°C)

°C)/hr

Page 75

Appendix A: VVT Zone II Points/Properties

Hysteresis

NOTE

Time

Temp

Occupied heating setpoint: 70°

75.5°

70.5°

Occupied cooling setpoint: 76°

.5°

hyster

esis

.5° hyste

resis

Learning Adaptive Optimal Start

Point Name/Description

Range

English

Metric

Red

DkBlue

– The desired difference between the temperature at which the zone color changes as the zone temperature departs from the acceptable range between the 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.

For example, the following graph shows the zone color that results as the zone temperature departs from and returns to the acceptable range in a zone with the following settings:

• Color Change Hysteresis = .5

°F (.27 °C) (applies as the temperature returns to

the acceptable range)

• Occupied cooling setpoint = 76°F (24.4°C)

• Occupied heating setpoint = 70°F (21.1°C)

The values in the graph below are Fahrenheit.

.5 °F ( .27 °C)

0.2 to 1.0 °F (.1 to .5

°C)

When the Learning Adaptive Optimal Start algorithm runs, the learned heating capacity or learned cooling capacity values are adjusted based on the color that is achieved when occupancy begins. The adjustment amounts for each color are displayed in the thermographic color fields (shown above with English default values).

– The amount the zone’s learned heating capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is red.

– The amount the zone’s learned heating capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is dark blue.

0.1900

0 to 1

0.1300

0 to 1

.1055

.0722

Page 76

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Range

English

Metric

LtBlue

Green

SpGrn

Yellow

Orange

Red Heating – Heating

Cooling – Cooling

Learned cooling capacity

Learned heating capacity Min Setpoint Separation

Optimal Start

NOTE

BAS On/Off

Properties

Control Program

Maintenance

Occupancy

BAS On/Off

Airside Linkage

System Occupancy Network Variable

– The amount the zone’s learned heating capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is light blue.

– The amount the zone’s learned heating capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is green.

– The amount the zone’s learned cooling capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is green.

– The amount the zone’s learned cooling capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is yellow.

– The amount the zone’s learned cooling capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is orange.

– The amount the zone’s learned cooling capacity is adjusted when the Learning Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at occupancy is red.

(Occupied or Unoccupied, depending on mode) The current programmed

setpoint adjusted by any offset that may be in effect.

(Occupied or Unoccupied, depending on mode) The current programmed

setpoint adjusted by any offset that may be in effect.

0.0600

0 to 1

0.0600

0 to 1

0.0600

0 to 1

0.0600

0 to 1

0.1300

0 to 1

0.1900

0 to 1

R: 0 to 120°F

(-17.7 to 48.9°C)

R: 0 to 120°F

(-17.7 to 48.9°C)

.0333

.0722

.1055

Start that is required to bring the space temperature down to the occupied cooling setpoint prior to the occupied time.

Start that is required to bring the space temperature up to the occupied heating setpoint prior to the occupied time.

heating and cooling setpoints.

function may begin to adjust the effective setpoints to achieve the occupied setpoints by the time scheduled occupancy begins. Enter 0 to disable Optimal Start.

network write to the controller's keypad_ovrde variable. (Display name:

utilizing

– The cooling capacity learned by Learning Adaptive Optimal

– The heating capacity learned by Learning Adaptive Optimal

– Minimum separation that must be maintained between the

– The number of hours prior to occupancy, at which the Optimal Start

Optimal Start is automatically disabled when occupancy is controlled by a

or the

. or when

, in

R: _°F/C

1 hr

0 to 4 hrs

Page 77

Appendix A: VVT Zone II Points/Properties

Optimal Start Type

None*

Temp Compensated*

Learning Adaptive Start

Heat Start K factor (min/deg)

Optimal Start Type

Temp Compensated

Cool Start K factor (min/deg)

Optimal Start Type

Temp Compensated

Standby Offset

Occupied RH Control Setpoint

Optional Sensor Type

RH Sensor

Control

Enable

Cool

Vent

Cooling

Vent

DCV Start Ctrl Setpoint

Optional Sensor Type

IAQ Sensor

DCV Control

Enable

DCV Max Ctrl Setpoint

Optional Sensor Type

IAQ Sensor

DCV Control

Enable

DCV MAX Vent Airflow.

Parallel Fan ON Value

Terminal Type

Parallel Fan

Occupied Min Airflow

Setpoints for ZS and wireless sensors

– The method used to change from unoccupied to occupied

setpoint.

Options:

– Unit will not change to occupied setpoint until the scheduled time or the unit goes into an occupied mode. Setpoints do not ramp, but change immediately from unoccupied to occupied values.

– Unit changes to occupied setpoints at a variable time prior to the occupied time, which is calculated by the current difference between space temperature and the appropriate heating or cooling setpoint. At that time, the setpoints do not ramp, but change immediately from unoccupied to occupied values.

– Unit gradually changes to occupied setpoints by adjusting the unoccupied setpoints over a specified period of time to achieve the occupied setpoint by the time scheduled occupancy begins.

– If

, this is the time in minutes per degree that the equipment starts before the occupied period when the space temperature is below the occupied heating setpoint (including any setpoint offset).

– If

, this is the time in minutes per degree that the equipment starts before the occupied period when the space temperature is above the occupied cooling setpoint (including any setpoint offset).

– The value by which the occupied setpoints are expanded when the space occupancy sensor indicates that the space is unoccupied. If 0, the unoccupied setpoints are used.

is set to source mode must be before the dehumidification function can be active.

is set to

– If

is set to

and

, this is the relative humidity setpoint during occupancy. The air

and the terminal mode must be

– If

is set to

and

, this is the value that the CO2 sensor must exceed to begin the DCV control function. This value should be set to approximately 75 ppm above the outdoor air CO2 level.

Temperature Compensated

None Temperature Compensated Learning Adaptive

15.00

0 to 99

15.00

0 to 99

0°F/C

0 to 15 (0 to 8.3

60%rh

0 to 100%rh

500ppm

0 to 9999 ppm

°F

°C)

set to

, this is the value that the CO2 level must exceed to begin the IAQ function

to control the damper to

heating, when the zone’s airflow control setpoint decreases below this value, the parallel fan turns on to increase airflow, ventilation, and prevent cold air dumping into the zone. If the airflow control setpoint rises above this value by more than 1 cfm (liters/sec), the parallel fan turns off. We recommend this value be set to approximately 10% above the

– If

is set to

and

and the zone does not require

setpoint. Set to 0 to disable this function.

1050ppm

0 to 9999 ppm

0 cfm (liters/sec)

0 to 99999 cfm (liters/second)

Page 78

Appendix A: VVT Zone II Points/Properties

Zone Setpoints:

Setpoints

Properties

Sensor

Setpoint Adjust

Edit Increment

Allow Setpoint Adjust Sensor Setpoint Adjust Option

To configure setpoint properties for ZS or wireless sensors, CTRL+click anywhere on the

graph at the top of the

microblock popup.

In the popup, on the

tab, configure ZS or wireless sensors for

section in order to access the

on the ZS or wireless sensor for setpoint adjustment.

Carrier wireless sensor.

display.

– Amount of offset in degrees for each press of the up or down arrows

– Check to allow setpoint adjustments on the specified ZS or

– Check to select the ZS or wireless setpoint adjustment

R: 1 0.1

0.5 1

(1) enabled

disabled/enabled

D: 3

Page 79

Appendix A: VVT Zone II Points/Properties

Alarm Configuration

Navigation:

i-Vu® / Field Assistant:

Properties > Control Program > Configuration

Alarm Configuration

Point Name/Description

Default/Range Space Temperature Alarm

Occupied Alarm Hysteresis

Setpoint

Alarm Delay (min/deg) Unoccupied Low SPT Alarm Limit

Space Temperature Alarm

Unoccupied High SPT Alarm Limit

Space Temperature Alarm

Supply Air Temperature Alarm

Low SAT Alarm Limit

Supply Air Temp Alarm

High SAT Alarm Limit

Supply Air Temp Alarm

Maximum Heating SAT

Space Humidity Alarm

Occupied High RH Alarm Limit

Space Humidity Alarm

RH Control

Enable

Alarm Delay (min/%RH) Unocc High RH Alarm Limit

Space Humidity Alarm

RH Control

Enable

– This value is added to the effective cooling setpoints and

subtracted from the effective heating setpoints as output from the

microblock. These values establish the occupied high and low limits that the space temperature must exceed before an occupied SPT alarm is generated. The alarm returns to normal when the space temperature drops below the high effective setpoint or rises above the low effective setpoint.

– Determines the amount of delay before an occupied space temperature alarm is generated when the controller transitions to the occupied mode. The delay time equals this value multiplied by the difference between the sensor temperature and occupied alarm setpoint plus 15 minutes.

–The value that the space temperature must drop below to generate a fixed hysteresis of 1

°F (.5 °C) for return to normal.

in the unoccupied mode. There is a

– The value that the space temperature must exceed to generate a hysteresis of 1

°F (.5 °C) for return to normal.

in the unoccupied mode. There is a fixed

– The value that the supply air temperature must drop below to

generate a

. There is a fixed hysteresis of 3 °F (1.6 °C) for

return to normal.

– The value that the supply air temperature must exceed to generate a return to normal. This should be set at least 15

. There is a fixed hysteresis of 3 °F (1.6 °C) for

°F (8.3 °C) higher than the

°F (2.7 °C)

0 to 20 °F (0 to 11.1

10 minutes

0 to 30 minutes

45°F (7.2°C)

35 to 90°F (1.6 to 32.2°C)

95°F (35°C)

45 to 100°F (7.2 to 37.7°C)

45°F (7.2°C)

15 to 90°F (-9.4 to 32.2°C)

120°F (48.9°C)

90 to 175°F (32.2 to 79.4°C)

°C)

exceed to generate a to

. There is a fixed hysteresis of 5%rh for return to normal.

– Determines the amount of delay before an occupied RH alarm is generated when the controller transitions to the occupied mode. The delay time equals this value multiplied by the difference between the sensor RH value and the occupied RH setpoint plus 15 minutes.

to generate a

. There is a fixed hysteresis of 5%rh for return to normal.

– The value that the relative humidity sensor must

in the occupied mode if

is set

– The value that the relative humidity sensor must exceed

in the unoccupied mode if

is set to

100%rh

45 to 100%rh

5 minutes

0 to 30 minutes

100%rh

45 to 100%rh

Page 80

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range IAQ/Ventilation Alarm

Occupied High CO2 Alarm Limit

Indoor Air Quality Alarm

DCV Control

Enable

Alarm Delay (min/ppm)

Alarms Displayed on ZS or SPT Sensor

Space Temperature Alarm

Space Temperature

Supply Air Temp Alarm

Supply Air Temp

Dirty Filter Alarm

Filter

Space High Humidity Alarm

Space Relative Humidity

Space High CO2 Alarm

Indoor Air Quality Alarm

Maintenance Displayed on ZS Sensor

Linkage Fault

Net OAT Fault

SPT Sensor Fault

– The value that the CO2 sensor must exceed to

generate an

in the occupied mode if

is set to

. There is a fixed hysteresis of 100ppm for return to normal.

– The fractional portion of a minute used to determine the amount of delay before an indoor air quality alarm is generated when the controller transitions to the occupied mode. The delay time equals this value multiplied by the difference between the sensor CO

value and the setpoint plus 15 minutes.

– If set to display, shows the alarm indicator on the

communicating zone sensors, if the

alarm is active.

– If set to display, shows the alarm indicator on the

communicating zone sensors, if the

alarm is active.

– If set to display, shows the alarm indicator on the communicating

zone sensors, if a

alarm is active.

– If set to display, shows the alarm indicator on the communicating zone sensors with display, if the active.

alarm is

1100ppm

0 to 9999 ppm

0.25 minutes

0.10 to 1.00 minutes

Ignore

Ignore/Display

Ignore

Ignore/Display

Display

Ignore/Display

Ignore

Ignore/Display

– If set to display, shows the alarm indicator on the

communicating zone sensors with display if the

– If set to display, shows the maintenance indicator on the ZS Pro sensor

if the Airside Linkage is in a Fault condition.

– If set to display, shows the maintenance indicator on the ZS Pro sensor

if the Network Outside Air is not valid.

– If set to display, shows the maintenance indicator on the ZS Pro

sensor if the space temperature sensor is not valid.

Ignore

is in alarm.

Ignore/Display

Ignore

Ignore/Display

Ignore

Ignore/Display

Ignore

Ignore/Display

Page 81

Appendix A: VVT Zone II Points/Properties

Service Configuration

Navigation:

i-Vu® / Field Assistant:

Properties > Control Program > Configuration > Service Configuration

Point Name/Description

Default/Range

Terminal Type Damper Size (dia.)

Damper Area (area)

Terminal Fan Airflow

External Actuator Enable

Heat Type

None Modulating Two Position Staged EH Combination

SCR Electric

Ducted Heat

Heat

Type

Combination

Yes

Number of Heat Stages

Heat Type

Staged EH

Valve Type

– The type of zone terminal that the controller is installed on. D:

– Used by the VVT Master to calculate the weighted average

demand. If the zone damper is round, enter its diameter. If rectangular, enter 0.

– Used by the VVT Master to calculate the weighted average demand. If the damper is rectangular, enter its area (width x height). If the damper is round, enter 0.

performance calculations only. Available only on fan-enabled terminal box.

external high-torque or slave actuator. Enabling this setting disables the output for Modulating Hot Water or Combination reheat functions.

heat may be used with system heat, depending on the space temperature demand.

Options:

– no heat

electric heat

Fan powered terminals are limited to no more than 2 stages.

– Enter the terminal fan airflow in cfm (liters/second). Used in

– Enable if the controller's analog output is used for an

– The type of supplemental reheat that the zone controller will control. The

– ducted or baseboard modulating hot water

– two position hot water

– ducted or baseboard electric heat

– combination baseboard modulating hot water and ducted staged

– modulating control for SCR-type electric heater

– Determines whether the zone is using ducted heat or baseboard. If

, set this field to

– The number heat stages when the

for ducted heat.

Single Duct

Single Duct Parallel Series Fan

6.00 in. (15.2 cm)

0 to 100.00 in./cm

0 sq.in. (cm. sq.)

0 to 9999 sq.in. (cm. sq.)

1000 cfm (472 liters/second)

0 to 99999 cfm (liters/second)

Disable

Disable/Enable

None

None Modulating Two Position Staged EH Combination SCR Electric

Yes

No/Yes

Two stages

One stage Two stages Three stages

– Two Position hot water only - The hot water valve's position with no power

applied to the valve.

NC/NO (normally closed/normally open)

Page 82

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

Hardwired Sensor

RH/CO2

RH Sensor – IAQ Sensor

NOTE

RH Control

DCV Control

Min Setpoint Separation

Occ Override Normal Logic State

Remote

Occupancy RH Sensor Min Input Volts

RH Sensor Max Input Volts

RH Sensor Value @ Min Volts

RH Sensor Value @ Max Volts

CO2 Sensor Min Input Volts

CO2 Sensor Max Input Volts

CO2 Sensor Value @ Min Volts

CO2 Sensor Value @ Max Volts

PD (Pressure Dependent) Control :

Damper Motor Travel Time

– The type of sensor used on the controller's

hardwire input.

This setting determines the control channel input function.

Options:

Relative humidity for zone dehumidification

– Indoor air quality for DCV control

RH and IAQ are also available with communicating ZS RH and CO2 sensors.

– Enables or disables zone dehumidification control if valid RH sensor

values are available.

– Enables or disables demand control ventilation control. D:

– Minimum separation that must be maintained between the

heating and cooling setpoints.

– The normal state of the controller's

input. If the input's contact is the same state as the configured state, the controller follows its controlling schedule. If the contact is in the opposite state of the configured state, the controller is forced into the unoccupied mode.

– The lowest voltage that should be read from the hardwired

relative humidity (RH) sensor.

– The highest voltage that should be read from the

hardwired RH sensor.

– The % relative humidity that correlates to the hardwired

RH sensor's low voltage reading.

None

None RH Sensor IAQ Sensor

Disable

Disable/Enable

Disable

Disable/Enable

°F (2.2 °C)

2 to 10 °F

(1.1 to 5.5

Open

Open/Closed

0.00 V

0 to 5.00 V

5.00 V

0 to 5.00 V

0 to 99%

°C)

RH sensor's high voltage reading.

hardwired CO

sensor's low voltage reading.

sensor's high voltage reading.

open. This field is fixed at 205 seconds.

sensor.

– The % relative humidity that correlates to the hardwired

– The lowest voltage that should be read from the

– The highest voltage that should be read from the

– The ppm value that correlates to the hardwired CO2

– The actuator's travel time from full closed to full

100%

0 to 100%

1.00 V

0 to 5.00 V

5.00 V

0 to 5.00 V

0 ppm

0 to 9999 ppm

2000 ppm

0 to 9999 ppm

D: 205 seconds

Page 83

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

Direction Clockwise

Damper Actuator

Built-in actuator

Target Damper Position

Lock value to

Auxheat

Reheat Min Damper Position

Lock value to

Fan

Lock value to

Off

Lock value to

Cooling Min Damper Position Cooling Max Damper Position

Reheat Min Damper Position

Cooling Min Damper Position

Heating Min Damper Position

Heating Max Damper Position

Vent Position

to the damper's position when it rotates clockwise.

control for troubleshooting purposes, select

– If

- The current damper position. To override normal

The damper moves to that position until

normal control for reheat troubleshooting purposes, select

- The current configured

is set to

and then enter a value.

checkbox is cleared.

. To override

enter a value. The damper moves to that position until cleared.

troubleshooting purposes, select stays in that state until the

controls to when the air source mode is Cooling, Vent, or Free Cooling and the

– The current value of the fan output relay. To override normal control for

and then enter

checkbox is cleared.

– The minimum damper position the terminal

space requirements for cooling are at a minimum. We recommend that you set this no lower than 10%.

controls to when the air source mode is Cooling, Vent, or Free Cooling and the space requirements for cooling are at a maximum.

the desired damper position at which the reheat will provide optimum

– The maximum damper position the terminal

– For Single Duct units with ducted reheat. Set to

performance. This value is compared to the and the greater of the two values determines the damper position.

, set this field

and then

checkbox is

. The relay

value,

Close/Open

R: 0 to 100%

R: On/Off

20%

0 to 100%

100%

0 to 100%

45%

0 to 100%

controls to when the air source mode is Heat and the space requirements are at a minimum.

controls to when the air source mode is Heat and the space requirements are at a maximum.

air source mode is Vent and the terminal mode is not in the Heat or Cool mode. If Linkage is not active, the zone determines vent mode by verifying that its SAT sensor is between 65°F (18.3°C) and 80°F (26.6°C).

– The minimum damper position the terminal

– The maximum damper position the terminal

– The ventilation damper position the terminal controls to when the

20%

0 to 100%

20%

0 to 100%

50%

0 to 100%

Page 84

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

Test and Balance

Automatic Control

Calibrated Damper Close

Calibrated Damper Open

Cool Max

Cool Min

Automatic Control

This must be activated when you finish

using any of the other Test and Balance commands.

Damper Full Close

Heat Max

Heat Min

Reheat Min

Vent

Sensor Binder / Zone Temp / Zone Humidity / ZS Zone CO2

Ctrl+click

Properties

Details

Sensor Binder

Associated Sensors

Network Type

Rnet

Address

Lock Display

(Index)

Network Type

Address

42), replacing the zone controller, or troubleshooting. If

– Use the following command buttons when commissioning a zone, balancing the system (page

controller will resume normal control.

– Forces the damper closed so the 0% damper position can be set.

– Forces the damper to its maximum open position so that the 100% damper position can

be set.

– Forces the damper to its cool maximum position regardless of its current local mode.

– Forces the damper to its cool minimum position regardless of its current local mode.

– Returns the damper to its normal control routines.

– Overrides the damper to its full closed position.

– Forces the damper to its heat maximum position regardless of its current local mode.

– Forces the damper to its heat minimum position regardless of its current local mode.

– Forces the damper to its reheat position regardless of its current local position.

– Forces the damper to its ventilation position regardless of its current local mode.

on the name of these properties to access the microblock popup

page >

tab. See below for instructions on configuring your ZS or wireless sensors.

See the microblock Help for more detailed explanations.

is not selected within 4 hours, the

- Use the

ZS or wireless sensors.

•

total) or RnetID assigned to each wireless sensor in SensorBuilder

•

- Set to

- Enter the DIP switch settings that are on the additional ZS sensors (up to 5

- Check to make the sensor display-only

table to configure the Rnet to use additional

- (1)

- Rnet

- 1

Page 85

Appendix A: VVT Zone II Points/Properties

Zone Temp

Use

Combined Algorithm

Average

Raw Value

Calibration

Corrected Value

Raw

Value

Combination Algorithm

Average, Maximum

Minimum

Corrected Value

(Index) Area

Use -

Calibration

Combination Algorithm

Input Smoothing

Show on Sensors

Display Resolution

COV Increment

Zone Humidity

Use

Combined Algorithm

Maximum

Raw Value

Calibration

Corrected Value

Raw

Value

Combination Algorithm

Average, Maximum

Minimum

Corrected Value

(Index) Area

Use -

Calibration

Combination Algorithm

Input Smoothing

Show on Sensors

Display Resolution

COV Increment

Zone II.

•

- Check to include ZS or wireless sensors' value in the

(

•

sensor's address

•

, in order to calibrate an individual ZS or wireless sensor's sensed value.

•

calculate the

- Configure additional ZS or wireless temperature sensors used on the VVT

is the default).

- Displays sensed temperature for each ZS or wireless temperature

- If needed, enter value to adjust the

- Use

, or

from the

zone temperature to

for temperature control.

Sensor

Average

Calculated Value

- (1) Main

checked

- 0

- None

- 1

- .1

Zone II.

•

- Configure additional ZS or wireless humidity sensors used on the VVT

- Check to include ZS or wireless sensors' value in the

(

is the default).

- Displays sensed humidity for each ZS or wireless humidity sensor's

address

- If needed, enter value to adjust the

from the

, in order to calibrate an individual ZS or wireless sensor's sensed value.

humidity to calculate the

- Use for humidity control.

, or

ZS or wireless

- (1) Main

Sensor

unchecked

- 0

Maximum

- None

Calculated Value

- 1

Page 86

Appendix A: VVT Zone II Points/Properties

ZS Zone CO2

Use

Combined Algorithm (Maximum

Raw Value

Calibration

Corrected Value

Raw

Value

Combination Algorithm

Average, Maximum

Minimum

Corrected Value

(Index) Area

Use -

Calibration

Combination Algorithm

Input Smoothing

Show on Sensors

Display Resolution

COV Increment

WS Battery Strength % —

WS Signal Strength % —

Rnet Sensed Occupancy

ZS model to show on graphic – WS model to show on graphic – Net Space Temp to show on graphic —

System Space Temperature

System Setpoint Adjustment

- Configure additional ZS CO2 sensors used on the VVT Zone II.

•

- Check to include ZS sensors' value in the

the default).

•

-Displays sensed CO

- If needed, enter value to adjust the

for each ZS CO

sensor's address

from the

, in order to calibrate an individual ZS sensor's sensed value.

•

the

- Use

for CO

control.

, or

ZS CO2 to calculate

Displays charge strength indicated on the wireless space

temperature sensor. If there are multiple wireless sensors, it displays the lowest value.

Sensor

unchecked

Maximum

Medium

Calculated Value

R: _%

- (1) Main ZS

- 0

- 1

- 10

sensor. If there are multiple wireless sensors, it displays the lowest value.

motion sensor.

want to display on the graphic.

you want to display on the graphic.

received over the network from another source. -999 indicates no value has been received and it will not be used.

received over the network.

Displays radio signal strength of the wireless space temperature

– Displays occupancy status detected by wireless infrared

Select the ZS model, from the drop-down list, that you

Select the wireless model, from the drop-down list, that

Select the type of sensor to display on graphic. D:

– The current value of the controlling space temperature

– The space temperature setpoint adjustment value

R: _%

R: Off/On

ZS Pro model

None ZS Pro model ZS Base model ZS Plus model

WS Plus model

WS Base model WS Plus model WS Pro model

Equipment Touch

Network Temp Equipment Touch

R: -50 to 150°F

(-45.5 to 65.5°C)

R: -5 to 5

°F

(-2.7 to 2.7

°C)

Page 87

Appendix A: VVT Zone II Points/Properties

System Space RH

System Space AQ

System Cool Demand Level

System Heat Demand Level

System Outdoor Air Temperature

System Occupancy

Maintenance

Navigation:

i-Vu® / Field Assistant:

Properties > Control Program > Maintenance

Point Name/Description

Default/Range Unit

Occupancy Status

Temp Compensated Start

Learning Adaptive Start

Space Temp Source –

Sensor Failure SPT Sensor T55/56 Network

Airside Linkage Locked Value

ZS Sensor

Setpoint Adjustment

Effective Heat Setpoint

Optimal Start

Demand

Limit

– The relative humidity received over the network. -999 indicates no

value has been received and it will not be used.

– The indoor air quality received over the network. -999 indicates no

value has been received and it will not be used.

– The value received over the network and used by the

demand limiting function to expand the cooling setpoint.

– The value received over the network and used by the

demand limiting function to expand the heating setpoint.

– The OAT received over the network. R: -50 to 150°F

– The status of the

network point. D:

R: 2 to 100%

R: 300 to 9999 ppm

R: 0 to 3

(-45.5 to 65.5°C)

Unoccupied

Unoccupied/Occupied

– The controller's occupancy status as determined by a network

schedule, a local schedule, or a timed override.

start (if any) that is configured and whether the algorithm is active or inactive.

The source of the controlling space temperature value.

Options:

– No valid space temperature or sensor status = failed.

– An SPT sensor is connected to the controller's Rnet port. – A T55, T56, or T59 sensor is connected to the controller's I/O terminals. – A network temperature sensor is bound to the controller's space

temperature AV.

– The space temperature from a linked terminal.

–The controller's space temperature input has been manually locked at a

value.

– A ZS sensor is connected to the controller's Rnet port.

– The amount that a user has adjusted the setpoints on a zone

sensor.

– The current heating setpoint. May include offsets from

configured occupied/unoccupied setpoints resulting from

– Indicates the type of optimal

R: Unoccupied/Occupied

R: Inactive/Active

R: Sensor Failure

SPT Sensor T55/T56 Network Airside Linkage Locked Value ZS Sensor

R: -20 to 20

(-11.1 to 11.1

°F

°C)

R: _°F/C

Page 88

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

Effective Cool Setpoint

Optimal Start

Demand

Limit

Relative Humidity Source –

IAQ Source – Outdoor Air Temperature Source

Remaining Heat Delay –

Heat Delay

Active

Cooling Demand Level

Heating Demand Level

Heat Delay –

Remaining Heat Delay –

Heat Delay

Active

Calculated DCV Damper Position –

Calculated Dehumidify Dmpr Position –

Reset Filter Alarm

Filter Alarm

Filter Service Alarm Timer Off

Occupancy Contact State

Remote

Cooling BTU's Heating BTU's

Occupancy

– The current cooling setpoint. May include offsets from

configured occupied/unoccupied setpoints resulting from

The source of the relative humidity value. R: N/A

The source of the indoor air quality value. R: N/A

– The source of the outdoor air temperature. R: N/A

, this is the remaining delay time. R: 0 to 60 minutes

– The system cool demand level received over the network. R: 0 to 3

– The system heat demand level received over the network. R: 0 to 3

R: _°F/C

Local Network Linkage Locked Value ZS Sensor

Local Network Linkage Locked Value

The status of the terminal heat delay. R: Inactive/Active

, this is the remaining delay time. R: 0 to 60 minutes

If the controller is in IAQ Override mode, this is the

calculated minimum damper position that will be maintained to satisfy the mode.

If the controller is in Dehumidify mode, this is

the calculated minimum damper position that will be maintained to satisfy the mode.

– Set this to On to reset an active

and restart the

. After the alarm returns to normal, this automatically changes to

- The physical state of the

input. R: Open/Closed

– Current Cooling Energy being delivered to the space. R: 0 to 99999 BTU

– Current Heating Energy being delivered to the space. R: 0 to 99999 BTU

R: 0 to 100%

Off

On/Off

(0 to 99999 KJoules)

Page 89

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

BAS On/Off

Inactive Occupied Unoccupied

NOTE

BAS On/Off

Unoccupied

Occupied

Optimal Start

Schedules

Pushbutton Override

Active

Override Time Remaining

Occupancy Contact Status

Remote

Global Occupancy –

System Occupancy

Local BACnet Schedule

Properties

Details

Sensor Configuration

Allow Force Unoccupied:

Force Unoccupied without Delay:

NOTE

Allow TLO Set During Occupied

Timed Local Override

Increment:

Maximum Duration:

– Determines the occupancy state of the controller and can be set over the

network by another device or third party BAS.

Options:

– Occupancy is determined by a configured schedule.

– The controller is always in the occupied mode.

– The controller is always in the unoccupied mode.

is automatically disabled.

– The controller's occupancy status based on the local schedule. R: Occupied/Unoccupied

override the occupancy state.

is set to either

–

The

indicates if a user pushed the sensor's override button to

– The amount of time remaining in an override period. R: 0 to 480 minutes

– The physical state of the controller's

R: Off/On

network input's current state. D:

, the

routine

R: Off/Active

input. R: Inactive

Inactive

Inactive Occupied Unoccupied

Active Unoccupied/Stdby

Unoccupied

Unoccupied/Occupied

Configure ZS Sensors by setting the following options in the microblock popup. Click

page >

See the microblock Help for more detailed explanations.

to access the microblock popup

tab.

– Check to allow a user to save energy by forcing the zone into an unoccupied schedule on the ZS sensor. The user does this by holding the sensor's On/Off button for at least 3 seconds. This forced state remains in effect until the schedule transitions to unoccupied or until a user presses the sensor's On/Off button again.

to unoccupied immediately instead of the normal 3-second delay.

This option is not available if

checked.

time for each click of the zone's local override button or switch.

microblock outputs, regardless of additional pulses from the controller's input.

– Check to allow a user to force a zone

– Minutes that the microblock adds to the zone's occupied

– Maximum value (up to 960 minutes) the

Enabled

Disabled/Enabled

Enabled

Disabled/Enabled

D: 30:00 mm:ss

60:00 mm:ss

0 to 960:00 mm:ss

Page 90

Appendix A: VVT Zone II Points/Properties

Alarms

Navigation:

i-Vu® / Field Assistant:

Properties > Control Program > Alarms

Point Name/Description

Range

Space Temperature Alarm

Alarming Temperature

Space Temperature

Alarm

Alarm Limit Exceeded

Space

Temperature

Alarm

Space Temp Sensor –

Wireless Battery Strength Alarm

Wireless Signal Strength Alarm

ZS/WS Sensor Configuration–

Indoor Air Quality

Occupied High CO2

Alarm Limit

Supply Air Temperature Filter

Space Relative Humidity

Network OAT -

Airside Linkage Status

Alarm

– Indicates if the space temperature exceeds the high or low

alarm limit.

– Indicates the space temperature value that caused the space temperature alarm. This value is only displayed when the (above) is in

– Indicates the value of the space temperature alarm limit that

alarm

R: Normal/Alarm

R: -56 to 245°F

caused the space temperature alarm condition. Value is only displayed when the

alarm (above) is in

Indicates if the space temperature sensor fails. R: Normal/Alarm

– Indicates one of the configured wireless space

temperature sensors is displaying low charge strength.

– Indicates one of the configured wireless space

temperature sensors is displaying low radio signal strength.

Indicates if the ZS or wireless zone temperature sensor

is not configured correctly.

– Indicates if the occupied CO2 level exceeds the

R: Normal/Alarm

– Indicates if the supply air temperature exceeds the high

temperature alarm limit or drops below the low temperature alarm limit.

R: Normal/Alarm

– Indicates if the filter's runtime hours exceeds the runtime alarm limit. R: Clean/Dirty

limit.

– Indicates if the relative humidity exceeds the high RH alarm

R: Normal/Alarm

(-48.9 to 118.3°C)

Indicates if the controller is not receiving a valid OAT value over the

network.

Linkage communications with the air source. If the controller is a slave, that it lost Linkage communications with the VVT master.

– If the controller is the VVT Master,

indicates that it lost

R: Normal/Alarm

indicates

Page 91

Appendix A: VVT Zone II Points/Properties

Linkage

Navigation:

i-Vu® / Field Assistant:

Properties > Equipment > Linkage

Point Name/Description

Default/Range

Airside Linkage

Linkage Collector/Linkage Provider

Summary

Details

Linkage Collector

Number of Providers

Linkage Provider

Network Number

Address

Network Number

Address

NOTE

Network Number

Address

Airside Linkage Status

Active

Not Active

Linkage Zone Type

VAV Master

VVT Master

Inhibit Heating Call from this zone?

Yes

Active Heating Caller?

Inhibit Cooling Call from this zone?

Yes

Active Cooling Caller?

Linkage Callers

Click and

the linked system, including the bypass and VVT Master.

air source controller.

application or Field Assistant to cycle power to the controller for the changes to take effect.

the controller is a stand-alone device.

Select

Select applications do not support sub-masters.

heating caller.

tabs. See the microblock popup's Help for more detailed explanations.

– Set the

– Enter the MS/TP

If you change the

– If

– Select whether the controller is a Master or a slave.

if the controller is the Master or a sub-master in a VAV application.

only if the controller is the Master in a VVT application. VVT

to access the microblock popup's

to the total number of controllers in

and MAC

, the controller is part of a linked system. If

- If

, the VVT Master ignores this controller as a

, you must use the i-Vu®

of the linked

R: 1 1 to 32

0 to 65535

0 to 99

R: Not Active/Active

Slave

Slave VVT Master VAV Master

No/Yes

system.

cooling caller.

system.

into heating or cooling mode. 1 is typical for systems with 8 zones or less. For larger systems, increase the number by 1 for each 6 zones. For example, 3 linkage callers for a 20 zone system.

– Displays if this zone is currently an active heat caller for the

- If

, the VVT Master ignores this controller as a

– Displays if this zone is currently an active cooling caller for the

– The minimum number of zones required to make the air source go

Yes

No/Yes

Yes

No/Yes

R: 1 1 to 32

Page 92

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

System Mode Reselect Timer (minutes)

Linkage RH Type

Linkage IAQ Type

Air Source Mode

Airside Linkage Status

Active

Airside Linkage Status

Not Active

Air Source Supply Air Temp

Airside Linkage

Status

Active

Air Source Static Pressure Airside Linkage Status

Active

Air Source Outdoor Air Temp

Airside Linkage

Status

Active

– Applies only to a VVT master. Defines how long the system continues to operate in the current mode before it reassesses all zones while the current demand is still active.

– Determines if the VVT or VAV Master sends to the air source the average or maximum values of all linked zone controllers that have a relative humidity (RH) sensor.

– Determines if the Master controller sends to the air source the

average or maximum values of all linked zone controllers that have a CO

sensor for

DCV and IAQ control.

– If linked air source. If source as determined by the zone controller’s SAT sensor.

, this is the current mode of the

, this is the mode of the air

– Displays the air source's SAT when

– Displays the air source’s supply static pressure when

– Displays the air source’s OAT when

10 to 120

Avg

Avg/Max

Max

Avg/Max

R: OFF

WARMUP HEAT COOL FREECOOL PRESSURE EVAC VENT

R: -56 to 245°F

(-48.9 to 118.3°C)

R: 0 to 5.0 in wc

(0 to 1.245 kPa)

R: -56 to 245°F

(-48.9 to 118.3°C)

Page 93

Appendix A: VVT Zone II Points/Properties

I/O Points

Navigation:

i-Vu® / Field Assistant:

Properties > I/O Points

WARNINGS

Value

Offset/Polarity

Exp:Num

I/O Type

Sensor/Actuator Type

Min/Max

Resolution

Point Name/Description

Default/Range

SPT Sensor/Zone Temp

SPT Sensor

Properties

Details

Do not adjust the following settings:

Min Present Value

Max Present Value

Setpoint Adjustment:

Max Adjust

Reset setpoint adjust to zero when unoccupied -

Each Pulse

Max Accum

Cancel override

Sensor Array:

Sensor calculation method -

BACnet configuration:

Network Visible -

• Do not change the configuration parameter for the points listed below. Changing these parameters could cause improper control and/or equipment damage.

• Use extreme caution if locking a point as this may also cause improper control and/or equipment damage.

, or

- (For the SPT Standard, SPT Plus, and SPT Pro sensors only). Sensor configurations on the microblock's information, see the Carrier Sensors Installation Guide.

- Minimum present value the sensor transmits before

indicating an alarm.

– The amount that a user may adjust the setpoint at the sensors.

- Maximum present value the sensor transmits before

tab are listed below. For more

R: -56 to 245°F

(-48.9 to 118.3°C)

D: 45°F (7.2°C)

D: 96°F (35.5°C)

5 °F (2.7 °C)

0 to 15 °F (0 to 8.3

°C)

I/O

when the controller transitions to unoccupied.

pushes the sensor's override button.

cancel an override.

variable to be passed to the controller.

point, and for this point to generate alarms.

– The amount of time added to the total override time when a user

– The maximum amount of override time accumulated when a user

– How long a user must push the sensor's override button to

Must be enabled for other BACnet objects to read or write to this

Resets the setpoint bias to zero

When using multiple SPT sensors, select the process

D: Off

30:00 mm:ss

0:00 to 1440:00 mm:ss

240:00 mm:ss

0:00 to 2000:00 mm:ss

3 seconds

0 to 60 seconds

Avg

Avg, Min, Max

Enabled

Page 94

Appendix A: VVT Zone II Points/Properties

Point Name/Description

Default/Range

Object Name -

CO2 Sensor

RH/CO2

RH Sensor

RH/CO2

T55 Zone Temp

T55

SAT Sensor

WS Battery Strength % —

WS Signal Strength % —

Zone Humidity Zone Temp

ZS Zone CO2 -

ZS/WS Sensors

Properties

Details

Zone Humidity

Zone Temp

ZS Zone CO2

Default Value

Valid?

Off

Sensor Configuration table

(Index) Area Configuration

Service Configuration

Sensor Binder

Use

Enable

Calibration

Calculated Value

Calibration

Raw Value

Combination Algorithm –

Do not change. D: zone_temp

– The current voltage of the controller's

– The value of the controller's

– The current value of the controller's SAT input. R: -56 to 140°F

Displays charge strength indicated on the wireless space

temperature sensor. If there are multiple wireless sensors, it displays the lowest value.

Displays radio signal strength of the wireless space

temperature sensor. If there are multiple wireless sensors, it displays the lowest value.

– The value provided by the controller's ZS or wireless sensor (if

present). See details below.

– The value provided by the controller's ZS or wireless sensor (if present). R: _F°

IAQ/CO2 signal received from CO2-enabled ZS Sensor(s). R: _ppm

space temperature sensor input. R: -56 to 245°F

input. R: 0 to 5 Vdc

(-48.9 to 118.3°C)

(-48.9 to 60°C)

R: _%

The following properties apply to the ZS or wireless Standard, ZS or wireless Plus, and ZS or wireless Pro only. Sensor configurations on the microblock's

•

sensors fails or during sensor startup. The default value is used for each sensor's corrected value in the i-Vu® system when the (

•

property name. See Service Configuration (page

•

– Check

combination algorithm used to determine the output value.

to the

how the enabled sensors' values are to be combined to determine the output value. When the calculation is performed, only sensors with a valid value will be included.

tab are listed below for:

– The value that outputs when communication of all enabled

output is False

– The Index number corresponds to the sensors defined in

for each sensor that you want to include in the

– If needed, enter a

for each ZS or wireless sensor.

If using more than one ZS or wireless sensor, select

. (Ctrl+click the

77).)

by adding the

-999

-999 to 999

(1) Main ZS/WS Sensor

(1) to (5)

Enabled index (1)

checked or unchecked

D: 0 to 10

Average

Average Maximum Minimum

Page 95

Appendix A: VVT Zone II Points/Properties

Input Smoothing

None

Minimum

Medium

Maximum

Show on sensors

Local Value

Calculated Value

Combination Algorithm

Display Resolution

COV Increment

Occupancy Contact State

Remote

Occupancy Override

Sensor Invalid

Off

Rnet Sensed Occupancy Hot Water Valve

HWV/ACT

Heating Stage 1

HEAT1

Heating Stage 2

HEAT2

Fan S/S or EH 3

FAN/HEAT3

can select one of the following options to send out an average of several readings on the output wire.

•

individual sensed value, or value determined by the

sensor. For example, 1 displays only integers (e.g., 74) and 0.5 displays values to the nearest 0.5 (e.g., 74.5).

its output only when the sensed value changes by more than the COV Increment.

– This internal input monitors the communication between the controller

and the SPT sensor.

– If the raw value from the sensor changes frequently, you

- The raw value

- The average of the last 2 readings

- The average of the last 5 readings

- The average of the last 9 readings

– Select

to have each enabled sensor display its

to have each sensor display the

– Defines the resolution of the value to be displayed on the

– To reduce Rnet traffic, you can force the microblock to update

- The hardware state of the contact used for

indicates communication is normal.

Medium

None Minimum Medium Maximum

Calculated Value

Calculated Value Local Value

R: 1 1000

100 10 1

0.5

0.1

0.01

0.001

0 to 100

R: Open/Closed

R: Off/On

motion sensor.

The function of this output depends on the terminal type.

– Displays occupancy status detected by wireless infrared

- The current value of the controller's

- The current hardware state of the controller's

- The current hardware state of the controller’s

output. R: 0 to 100%

output. R: Off/On

output.

R: Off/On

Page 96

Appendix B: VVT terminal modes

Air Source Mode

Temperature Control Requirements

Terminal Type

Aux Heat

Terminal Mode

Damper Control (Damper Setpoint used)

Heat Control

Fan Control

Off

None

All

N/A

Off

Hold Damper @65% (None)

Disable

Cooling

All

N/A

Off

Hold Damper @65% (None)

Disable

Heating

Single Duct

N/A

Off

Hold Damper @65% (None)

Disable

N/A

Series or

Off

Hold Damper @65% (None)

Disable

Disable Series Fan

Yes

Heating

Hold Damper @65% (None)

Enable

Parallel Fan

Yes

Heating

Close Damper (None)

Enable

Enable Vent

None

Single Duct

N/A

Vent

Vent Damper Position (Vent)

Disable

N/A

Series Fan

N/A

Vent

Vent Damper Position (Vent)

Disable

Enable

Parallel Fan

N/A

Vent

Vent Damper Position (Vent)

Disable

Cooling

Single Duct

N/A

Cooling

Modulate Damper Position

Disable

N/A

Series Fan

N/A

Cooling

Modulate Damper Position

Disable

Enable

Parallel Fan

N/A

Cooling

Modulate Damper Position

Disable

Heating

Single Duct,

Cooling

Minimum Damper Position

Disable

Series Fan

Heating

Minimum Damper Position

Disable

Enable Single Duct

Yes

Reheat

Minimum Damper Position

Enable

N/A

Series or

Yes

Heating

Minimum Damper Position

Enable

Cool or Freecool

None

Single Duct

N/A

Vent

Minimum Damper Position

Disable

N/A

Series Fan

N/A

Vent

Minimum Damper Position

Disable

Enable

Parallel Fan

N/A

Vent

Minimum Damper Position

Disable

Cooling

Single Duct

N/A

Cooling

Modulate Damper Position

Disable

N/A Series Fan

N/A

Cooling

Modulate Damper Position

Enable

Parallel Fan

N/A

Cooling

Modulate Damper Position

Disable

Heating

Single Duct,

Heating

Minimum Damper Position

Disable

Series Fan

Heating

Minimum Damper Position

Disable

Enable Single Duct

Yes

Reheat

Minimum Damper Position

Enable

N/A

Series or

Yes

Heating

Minimum Damper Position

Enable

Appendix B: VVT terminal modes

Parallel Fan

(Cool)

Parallel Fan

(Cool)

Page 97

Appendix B: VVT terminal modes

Air Source Mode

Temperature Control Requirements

Terminal Type

Aux Heat

Terminal Mode

Damper Control (Damper Setpoint used)

Heat Control

Fan Control

Heat, Warmup

None

Single Duct,

N/A

Heating

Minimum Damper Position

Disable

Series Fan

N/A

Heating

Minimum Damper Position

Disable

Enable

Cooling

Single Duct,

N/A

Heating

Minimum Damper Position

Disable

Series Fan

N/A

Heating

Minimum Damper Position (Heat)

Disable

Enable

Heating

Single Duct

Heating

Modulate Damper Position

Disable

N/A

Single Duct

Yes

Heating

Modulate Damper Position

Enable

N/A

Series or

Heating

Modulate Damper Position

Disable

Enable

Series or

Yes

Heating

Modulate Damper Position

Enable

Pressurization

None

Single Duct,

N/A

Pressurize

Maximum Damper Position

Disable

Disable Series Fan

N/A

Pressurize

Maximum Damper Position

Disable

Enable

Cooling

Single Duct,

N/A

Pressurize

Maximum Damper Position

Disable

Series Fan

N/A

Pressurize

Maximum Damper Position

Disable

Enable

Heating

Single Duct, Parallel Fan

Pressurize

Maximum Damper Position (Cool)

Disable

Series Fan

Pressurize

Maximum Damper Position

Disable

Enable

Single Duct,

Yes

Pressurize

Maximum Damper Position

Disable

Series Fan

Yes

Pressurize

Maximum Damper Position

Disable

Enable

Evacuation/

All

N/A

Evacuate

Close Damper

Disable

(Linked air source only)

Parallel Fan

(Heat)

(Cool)

Shutdown (Linked)

Page 98

Appendix C: ZS Sensor display for VVT Zone II

Property

ZS Screen

Rnet Tag

Rnet Text

Description

-nonE StP-AL SPco2-AL SP_rH-AL Sat-AL

-nonESnSr-FLt Fltr-dtY Llnc-FLt

OFF hEAt-uP hEAt cooL FrEEcool PrESSrZE EuAcuATE vEnt no-Llnc

NOTES

Diagnostic

Appendix C: ZS Sensor display for VVT Zone II

Active Alarms Diagnostic 1550

Active Maintenance Diagnostic 1551

Active Air Source Linkage

Diagnostic 1552

Mode

Supply Air Temp Info 304

Air Flow Percentage of

Info 308

Nominal

Outdoor Air Temperature Info

F°

No Active Alarms Zone Temp Alarm Zone CO2 Alarm Zone Humidity Alarm Supply Air Temp Alarm

No Active Maintenance Sensor Fault Dirty Filter Linkage Fault

Off Warm-up Heat Cool Freecool Pressurize Evacuate Vent Linkage Not Active

Air Source Supply Air Temp, if available

% of design air flow

Outside Air Temp

Rnet text is the scrolling text that appears on the ZS Pro Sensor's display.

• To view properties on the

Screen, hold the button for 3 seconds. Tap the button to cycle through

information to help troubleshoot your system.

• The Rnet tag is displayed on the ZS sensor display.

• To view properties on the Info Screen, press the button. Tap the button to cycle through information.

Page 99

Appendix D: BACnet points list

BACnet

Point Name

Point

Units

Default Value

BACnet Point Name

BACnet Object ID

Cool Min Damper Position

R %

cl_min_dmp_pos

Cool Max Damper Position

R %

cl_max_dmp_pos

Single Duct Reheat Damper Position

R %

re_ht_min_dmp_pos

Heat Min Damper Position

R %

ht_min_dmp_pos

Heat Max Damper Position

R %

ht_max_dmp_pos

Ventilation Position

R %

vent_dmp_pos

Occupied Cooling Setpoint

R/W

°F

occ_cl_stpt

AV:3001

Occupied Heating Setpoint

R/W

°F

occ_ht_stpt

AV:3002

Unoccupied Cooling Setpoint

R/W

°F

unocc_cl_stpt

AV:3003

Unoccupied Heating Setpoint

R/W

°F

unocc_ht_stpt

AV:3004

Occupancy Contact State

0=Open

occ_switch

BI:1001

Air Source Outdoor Air Temp

°F link_ahu_oat

AV:2609

Air Source Static Pressure

in H2O

link_ahu_static

AV:2610

Air Source Supply Air Temp

°F link_sat

AV:2608

Baseboard Heating Capacity

R %

bas_bd_ht_cap

AV:2031

Cooling Demand Level

cool_demand_level

AV:9006

Damper Position

R %

dpr_pos

AV:1013

Effective Cool Setpoint

°F eff_cl_stpt

AV:3005

Effective Heat Setpoint

°F eff_ht_stpt

AV:3006

Fan Off Delay

R/W

sec

120

fan_delay_off

AV:9024

Filter Runtime

hr filter_rntm

AV:2015

Filter Service Alarm Timer

R/W

hr 0 filter_service_hrs

AV:2019

Heating Capacity

R %

htg_cap

AV:2030

Heating Demand Level

heat_demand_level

AV:9036

Heating Lockout Temperature

R/W

°F

oat_ht_lockout

AV:9003

Indoor Air Quality CO2 (ppm)

ppm iaq

AV:1009

lux sensor BACnet accessible

lux_bn

Min Setpoint Separation

R/W

°^F 4 min_stpt_sep

Occ Override Delay

R/W

min

occ_ovr_delay

AV:9028

Occupied Alarm Hysteresis

R/W

°^F 5 occ_spt_alrm_hyst

Occupied RH Control Setpoint

R/W

%rh

occ_dehum_stpt

AV:3011

Outdoor Air Temperature

°F oa_temp

AV:1003

Override Time Remaining

min ovrde_time

AV:2016

Power Fail Restart Delay

R/W

sec

start_delay

AV:9007

Setpoint Adjustment

°F stpt_adj

AV:1006

Setpoint Adjustment Range

R/W

°^F 2 stpt_adj_range

AV:9015

Space Relative Humidity

%rh space_rh

AV:1011

Space Temperature - Prime Variable

°F space_temp

AV:2007

Standby Offset

R/W

°F 0 stdby_offset

AV:1017

Supply Air Temperature

°F sa_temp

AV:1008

System Outdoor Air Temperature

R/W

°F

-999

system_oat

AV:1901

System Setpoint Adjustment

R/W

°F

-999

system_stpt_adj

AV:1913

System Space AQ

R/W

ppm

-999

system_iaq

AV:1903

System Space RH

R/W % -999

system_rh

AV:1904

Appendix D: BACnet points list

Access

1=Closed

Page 100

Appendix D: BACnet points list

BACnet

Point Name

Point

Units

Default Value

BACnet Point Name

BACnet Object ID

Cool Min Damper Position

R %

cl_min_dmp_pos

System Space Temperature

R/W

°F

-999

system_spt

AV:1902

Airside Linkage Status

0=Not Active

a_link_status

BV:2601

DCV Control

R/W

0=Disable

Inactive (0)

dcv_enable

Fan

0=Off

sfan_status

BV:1003

Heat Enable

R/W

0=Disable

Active (1)

ht_enable

BV:1012

Occupancy Status

0=Unoccupied

occ_status

BV:2008

Reset Filter Alarm

R/W

0=Off

Inactive (0)

filter_rntm_clr

BV:7517

RH Control

R/W

0=Disable

Inactive (0)

rh_enable

Setpoint Adjustment

R/W

0=Disable

Active (1)

stpt_adj_enable

BV:1013

Shutdown

R/W

0=Inactive

Inactive (0)

shutdown

BV:9001

Air Source Mode

1=Off

8=Vent

link_ahu_mode

MSV:2005

BAS On / Off

R/W

1=Inactive

keypad_ovrde

MSV:1001

Optimal Start Type

R/W

1=None

start_type

MSV:2009

Space Temp Source

1=Sensor Failure

spt_status

MSV:2003

Terminal Mode

1=Off

13=Air Balancing

terminal_status

MSV:2006

Terminal Type

1=Single Duct

terminal_type

MSV:2007

Access

1=Active

1=Enable

1=On

1=Enable

1=Occupied

1=On

1=Enable

1=Active

2=Warmup 3=Heat 4=Cool 5=Freecool 6=Pressure 7=Evac

2=Occupied 3=Unoccupied

2=Temp Compensated 3=Learning Adaptive

2=SPT Sensor 3=T55 / T56 4=Network 5=Airside Linkage 6=Locked Value 7=ZS Sensor 8=Wireless Sensor

2=Heating 3=Warm-Up 4=Vent 5=N/A 6=Cooling 7=Dehumidify 8=Reheat 9=Pressurize 10=Evacuate 11=Shutdown 12=IAQ Override

2=Parallel Fan 3=Series Fan

Carrier VVT Zone II, VVT Zone Installation And Startup Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

What is a VVT Zone II?

Introduction

Specifications

Safety Considerations

Field-supplied hardware

Mounting the VVT Zone II

To mount the controller and actuator

Installing the VVT Zone II

Wiring the VVT Zone II for power

To wire the controller for power

Addressing the VVT Zone II

Wiring for communications

Wiring specifications for BACnet MS/TP and ARC156

To wire the controller to the BACnet network

Wiring devices to the VVT Zone II's Rnet port

Wiring specifications

To wire ZS sensors to the controller

To wire the Wireless Adapter for wireless sensors

To wire an Equipment Touch to the VVT Zone II

To wire the TruVu™ ET Display

Wiring sensors to the VVT Zone II's inputs

Wiring specifications

To wire the T55 sensor to the controller

To wire the Supply Air Temperature sensor to the controller

To wire a Duct Air Sensor to the controller

To wire the CO2 sensor to the controller

To wire the Relative Humidity sensor to the controller

Wiring a remote occupancy sensor

Wiring equipment to outputs

Wiring specifications

Wiring diagram legend

Single duct only

Single duct 2-position hot water

Single duct modulating hot water

Single duct SCR electric heat

Single duct combination base board and ducted heat

Single duct staged electric heat

Fan box 2-position hot water

Fan box modulating hot water - ducted or baseboard

Fan box SCR electric heat

Fan box combination baseboard and ducted heat

Fan box 2-stage electric heat

Wiring field-supplied actuators to the analog output

Configuring the VVT Zone II's properties

Start-up

Configuring ZS Sensors

Performing system checkout

Commissioning the VVT Zone II

Balancing the system

Step 1: Prepare for balancing

Step 2: Balance each zone

Step 3: Set the system static pressure

Temperature sensors

Sequence of operation

Zone airflow control

Zone reheat control

Demand control ventilation (DCV) and dehumidification using optional sensors

Occupancy

Alarms

Demand limiting

Linkage

Linkage modes and operation

Driver

To adjust the driver properties

Device

Notification Classes

Calendars

Common Alarms

Specific Events

Switches, Jumpers, Options

Act Net Network Details

LED's

Troubleshooting

To get the serial number

To restore factory defaults

To replace the battery