Trane Round In/Round Out Catalogue

Controls—

LonMark DDC

VAV Controller

Introduction

This LonMark™ certified controller uses the Space Comfort Controller

(SCC) profile to exchange information over a LonTalk™ network. Networks with LonMark certified controllers provide the latest open protocol technology. Being LonMark certified guarantees that owners and end-users have the capability of adding Trane products to other “open” systems and relieves owners of the pressure and expense of being locked into a single

DDC supplier. The Trane VV550 VAV controller with VariTrane VAV units can be applied to more than just Trane systems. When a customer buys a

Trane VAV unit with Trane DDC controller, they take advantage of: y Factory-commissioned quality y Knowing they have selected the most reliable VAV controllers in the industry y Trane as a single source to solve any

VAV equipment, or system-related issues y The most educated and thorough factory service technicians in the controls industry y Over 150 local parts centers throughout North America that can provide what you need, when you need it.

Don’t let your existing controls supplier lock you out of the most recognized name in VAV system control in the industry. Specify Trane open-protocol systems.

What are the new features of this controller? Read on to find out more.

Don’t let your existing controls supplier lock you out of the most recognized name in VAV system control in the industry. Specify

Trane open-protocol systems.

VAV-PRC008-EN

C 26

Controls—

LonMark DDC

VAV Controller

Options

VV550—Trane DDC LonMark Controller

Single-Duct Terminal Unit (VCCF, VCWF, and VCEF)

Unit Heat

Cooling Only

(VCCF model)

Hot Water

(VCWF model)

Electric

(VCEF model)

Control

DD11

DD12

DD13

DD14

DD15

DD17

DD12

DD13

DD17

DD14

DD15

Description

Space Temp Control without Reheat

Space Temp Control with Remote Normally-Closed On/Off Hot Water Valve (Normally-Open Outputs)

Space Temp Control with Remote Proportional Hot Water Valve with Optional Spare On/Off Output

Space Temp Control with Remote Staged Electric Heat

Space Temp Control with Remote Pulse-Width Modulation Electric Heat

Space Temp Control with Remote Normally-Open On/Off Hot Water Valve (Normally-Closed Output)

Space Temp Control with Normally-Closed On/Off Hot Water Valve (Normally-Open Outputs)

Space Temp Control with Proportional Hot Water Valve with Optional Spare On/Off Output

Space Temp Control with Normally-Open On/Off Hot Water Valve (Normally-Closed Output)

Space Temp Control with Staged Electric Heat

Space Temp Control with Pulse-Width Modulation Electric Heat

Dual-Duct Terminal Unit (VDDF)

Unit Heat

(VDDF model)

Control

DD11

DD18

Description

Space Temp Control (No Remote Heat) and Heating Control

Space Temp Control (No Remote Heat) and Heating—Constant-Volume Control

Fan-Powered Terminal Units with PSC Motor (VPCF, VPWF, VPEF, VSCF, VSWF, and VSEF)

Low-Height Fan-Powered Terminal Units with PSC Motor (LPCF, LPWF, LPEF, LSCF, LSWF, and LSEF)

Unit Heat

Cooling Only

(VPCF, VSCF,

LPCF, LSCF models)

Hot Water

(VPWF, VSWF

LPWF, LSWF)

Electric

(VPEF, VSEF

LPEF, LSEF)

Control

DD11

DD12

DD13

DD14

DD15

DD17

DD12

DD13

DD17

DD14

DD15

Description

Space Temp Control without Reheat

Space Temp Control with Remote Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs

Space Temp Control with Remote Proportional Hot Water Valve

Space Temp Control with Remote Staged On/Off Electric Heat

Space Temp Control with Remote Pulse-Width Modulation Electric Heat

Space Temp Control with Remote Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs

Space Temp Control with Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs

Space Temp Control with Proportional Hot Water Valve

Space Temp Control with Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs

Space Temp Control with Staged On/Off Electric Heat

Space Temp Control with Pulse-Width Modulation Electric Heat

Fan-Powered Terminal Units with ECM (VPCF, VPWF, VPEF, VSCF, VSWF, and VSEF)

Unit Heat

Cooling Only

(VPCF, VSCF models)

Hot Water

(VPWF, VSWF models)

Electric

(VPEF, VSEF models)

Control

DD11

DD12

DD13

DD14

DD15

DD17

DD12

DD13

DD17

DD14

DD15

Description

Space Temp Control without Reheat

Space Temp Control with Remote Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs

Space Temp Control with Remote Proportional Hot Water Valve

Space Temp Control with Remote Staged On/Off Electric Heat

Space Temp Control with Remote Pulse-Width Modulation Electric Heat

Space Temp Control with Remote Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs

Space Temp Control with Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs

Space Temp Control with Proportional Hot Water Valve

Space Temp Control with Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs

Space Temp Control with Staged On/Off Electric Heat

Space Temp Control with Pulse-Width Modulation Electric Heat

Page #

C 37

C 37

C 37

C 37

C 37

C 37

C 37

C 37

C 37

C 37

C 37

Page #

C 38

C 38

C 38

C 38

C 38

C 38

C 38

C 38

C 38

C 38

C 38

C 38

Page #

C 35

C 35

C 35

C 35

C 35

C 35

C 35

C 35

C 35

C 35

C 35

Page #

C 36

C 36

VAV-PRC008-EN C 27

Controls—

LonMark DDC

VAV Controller

Features

&

Benefits

General Features and

Benefits

Assured Accuracy y Proportional-plus-integral control loop algorithm for determining required airflow needed to control room temperature. Airflow is limited by active minimum and maximum airflow setpoints.

y Pressure-independent (PI) operation that automatically adjusts valve position to maintain required airflow.

In certain low-flow situations or in cases where the flow measurement has failed, the DDC controller will operate in a pressure-dependent (PD) mode of operation.

y When combined with the patented

Trane Flow ring and pressure transducer, flow is repeatable to +/- 5% accuracy across the Pressure

Independent (PI) flow range. (See

Valve/Controller Airflow Guidelines section).

y Improved 2-Point Air Balancing is available – Assures optimized flowsensing accuracy across the operating range. This provides a more accurate airflow balancing method when compared to typical single-point flow correction air balancing.

y Analog input resolution of +/- 1/8°F within the comfort range maximizes zone temperature control yielding excellent comfort control.

LonMark VV550 DDC VAV Controller

Reliable Operation y Built for life – Trane products are designed to stand the test of time, with a proven design life that exceeds 20 years.

y Fully factory tested – fully screened and configured at the factory. All features are tested including fan and reheat stage energization, air valve modulation, and controller inputs and outputs.

Safe Operation y All components, including the controller, pressure transducer, transformer, etc. are mounted in a

NEMA 1 sheet metal enclosure and are tested as an assembly to UL1995 standards. The result is a rugged and safe VAV, controller, and thus, overall unit.

y When in PI-mode, EH is disabled when the sensed flow is below the minimum required.

y HW coil VAV units in ventilation flow control (VFC) have a Freeze protection algorithm to protect the water coil and the internal space from water damage.

This is accomplished by driving the water valve to maximum position on alarm conditions.

System-Level Optimization

Trane controllers are designed to integrate into Trane Tracer Summit

Systems and leverage clear and clean unit-controller related data for system level control decisions. Integrating a

Trane VV550 controller into a Tracer

Summit Control System provides the next step in building system control.

Specifically, system-level decisions on how to operate all components can be made. Energy efficient optimization strategies like Static Pressure

Optimization, Ventilation Reset, and

CO

2

Demand-controlled Ventilation can be employed with the simple press of a button. The end-result is the most efficient and reliable building control system available.

Simplified Installation

Factory Commissioned Quality – All

Trane DDC VAV controllers are factorycommissioned. This means that the

DDC boards are powered and runtested with your specific sequence parameters. They are connected to a communication link to make sure that information and diagnostic data function properly. Before any VariTrane

VAV unit ships they must pass a rigorous quality control procedure. You can be assured that a Trane VAV unit with Trane DDC VAV controls will work right out of the crate.

Factory-commissioning of unit

VAV-PRC008-EN

C 28

Controls—

LonMark DDC

VAV Controller

Features

&

Benefits

Zone sensor air balance – When applied to a Trane zone sensor with thumbwheel and on/cancel buttons, a balancing contractor can drive the primary air valve to maximum or minimum airflow from the sensor to determine the point of calibration to be used (maximum will result in optimum performance). The flow reading can then be calibrated from the sensor, without the use of additional service tools. (Non-LCD versions)

DDC Sensor with Thumbwheel & NSB

Tenant-Finish Heat Mode – In some office projects, the building is being constructed as tenants are being identified. Tenant-finish heat mode is designed for applications when a given floor has not been occupied. The main AHU system is used for heat and because the internal furnishings are not complete, the sensors have not been installed. In this case, the primary valve drives open using the heat of the main AHU to keep plumbing lines from freezing. When available, the operation of the VAV unit fan (series or parallel) remains unaffected.

Controller Flexibility y 24 VAC binary input that can be configured as a generic input or as occupancy input. When the DDC controller is operating with Tracer

Summit, the status of the input is provided to Tracer Summit for its action. In stand-alone operation and when configured for an occupancy input, the input will control occupancy status of the DDC controller.

y Auxiliary temperature analog input configured for an auxiliary temperature sensor. The value of the input is used as status-only by Tracer

Summit if Tracer Summit is providing a supply air temperature to the DDC controller. Otherwise, the input will be used for determining heating/cooling control action of the VAV unit. When the auxiliary temperature sensor is located in the discharge of the unit, and attached to a Trane Tracer Summit

BAS, additional test sequencing and reporting is available to maximize VAV system capabilities and simplify system commissioning.

y Dual-duct support with two DDC controllers. One DDC controller controls the cooling air valve and the other controller controls the heating air valve. With constant-volume sequences, the discharge air volume is held constant by controlling discharge air volume with the heating Controller.

y LonMark certified performance ensures that a Trane VAV with controller will provide state-of-the-art, consistent open communication protocol for integration with the industry’s latest (Non-Trane) building automation control systems, including

Johnson Control, Andover, Siemans,

Honeywell, etc.

y CO2 demand controlled ventilation enables a HVAC system to adjust ventilation flow based on critical zone, average CO

2

of specified zones, etc.

Trane demand controlled ventilation strategies are pre-defined for simplifed application and can be easily customized to meet the needs of a specific system.

VAV-PRC008-EN C 29

Controls—

LonMark DDC

VAV Controller

Trane DDC VAV

Controller Logic

Control Logic

Direct Digital Control (DDC) controllers are today’s industry standard. DDC controllers share system-level data to optimize system performance

(including changing ventilation requirements, system static pressures, supply air temperatures, etc.). Variables available via a simple twisted-shielded wire pair include occupied/unoccupied status, minimum and maximum airflow setpoints, zone temperature and temperature setpoints, air valve position, airflow cfm, fan status (on or off), fan operation mode (parallel or series), reheat status (on or off), VAV unit type, air valve size, temperature correction offsets, flow correction values, ventilation fraction, etc.

With the advent of LonMark open protocol, the most reliable VAV controller is now available for ANY system. Gone are the days of being locked into a single supplier. Trane DDC controllers provide Trane-designed solid-state electronics intended specifically for VAV applications including:

1. Space Temperature Control

2. Ventilation Flow Control (100% outside air applications)

3. Flow Tracking Space Pressurization

Control (New feature)

Space Temperature Control

Space temperature control applications are where Trane emerged as an industry leader in quality and reliability. This did not occur overnight and has continued to improve as our controller and control logic has improved over time. STC employs controller logic designed to modulate the supply airstream and associated reheat (either local or remote) to exactly match the load requirements of the space.

Additionally, minimum and maximum airflow and specific controller sequence requirements are preprogrammed to ensure that appropriate ventilation standards are consistently maintained. When connected to a Trane Tracer Summit control system, trend logging, remote alarming, etc. are available to fully utilize the power and capabilities of your systems.

General Operation-Cooling

In cooling control action, the DDC controller matches primary airflow to cooling load. The DDC controller will automatically change over to heating control action if the supply air temperature is above a configured/ editable setpoint. When the supply air temperature is less than 10 degrees below this setpoint, the controller will automatically switch to cooling control action. The DDC controller first chooses the Tracer Summit-provided supply air

Flow Sensor Signal vs. Airflow Delivery

5

Controller

Logic

temperature value to use for auto changeover. If this is not available, it uses the temperature provided by the optional auxiliary temperature sensor

(must be installed for inlet temperature monitoring). If this is also not available, it uses the heating/cooling mode assigned by Tracer Summit or the DDC controller’s service tool.

General Operation-Reheat

In heating control action, the DDC controller matches primary airflow to heating load. The DDC controller will automatically change over to heating control action if the supply air temperature is above a configured/ editable setpoint. When the supply air temperature is less than 10 degrees below this setpoint, the controller will automatically switch to cooling control action. The DDC controller first chooses the Tracer Summit-provided supply air temperature value to use for auto changeover. If this is not available, it uses the temperature provided by the optional auxiliary temperature sensor (must be installed for inlet temperature monitoring). If this is also not available, it uses the heating/ cooling mode assigned by Tracer

Summit or the DDC controller’s service tool.

When heat is added to the primary air, the air is considered reheated. Reheat can be either local (integral to the VAV unit in the form of an electric coil or hot water coil) or remote (typically existing wall fin radiation, convector, etc.) or any combination of local and remote. The operating characteristics of the four basic types of VariTrane DDC terminal reheat are discussed.

1

4" 5" 6" 8" 10" 12" 14" 16"

0.1

0.01

10 100 1,000 10,000

Cfm

Note: Flow sensor DP (in. wg) is measured at the flow ring to aid in system balancing and commissioning. See

"Valve/Controller Airflow Guidelines" in each section for unit performance.

C 30

VAV-PRC008-EN

Controls—

LonMark DDC

VAV Controller

Single-Duct: On/Off Hot Water Reheat –

Three stages of on/off hot water reheat are available. Two-position water valves complete the HW reheat system and are either fully opened or fully closed. The heating minimum airflow setpoint is enforced during reheat.

Stage 1 energizes when the space temperature is at or below the heating setpoint. When the zone temperature rises above the active heating setpoint by 0.5°F (0.28°C), stage 1 is de-energized.

Stage 2 energizes when the space temperature is 1°F (0.56°C) or more below the active heating setpoint, and is de-energized when the space temperature is 0.5°F (0.28°C) below the active heating setpoint. Stage 3 energizes when the zone temperature is

2°F (1.11°C) or more below the active heating setpoint, and de-energizes when the space temperature is 1.5°F (0.83°C) below the active heating setpoint. When reheat is de-energized, the cooling minimum airflow setpoint is activated.

Single-Duct: Proportional Hot

Water Reheat –

Proportional hot water reheat uses 3wire floating-point-actuator technology.

The heating minimum airflow setpoint is enforced during reheat.

The water valve opens as space temperature drops below the heating setpoint. A separate reheat proportionalplus-integral control loop from that controlling airflow into the room is enforced. Water valve position is dependent on the degree that the space temperature is below the active heating setpoint and the time that the space temperature has been below the active heating setpoint. If not already closed, the water valve fully closes when the zone temperature rises above the active heating setpoint by 0.5 °F (0.28

°C). An additional on/off remote heat output is available and energized when the proportional valve is driven 100% open and de-energized when the proportional valve reaches 50% open.

When reheat is de-energized, the cooling minimum airflow setpoint is activated. Again, these reheat devices can be either local or remote.

Single-Duct: On/Off Electric Reheat –

One, two, or three stages of staged electric reheat are available. The heating minimum airflow setpoint is enforced during reheat.

Stage 1 is energized when the space temperature falls below the active heating setpoint and minimum airflow requirements are met. When the zone temperature rises above the active heating setpoint by 0.5°F (0.28°C), stage 1 is de-energized. Stage 2 energizes when the space temperature is 1°F (0.56°C) or more below the active heating setpoint, and is de-energized when the space temperature is 0.5°F

(0.28°C) below the active heating setpoint. Stage 3 energizes when the zone temperature is 2°F (1.11°C) or more below the active heating setpoint, and de-energizes when the space temperature is 1.5°F (0.83°C) below the active heating setpoint.

When reheat is de-energized, the cooling minimum airflow setpoint is activated.

VCEF

Controller

Logic

Single-Duct: Pulse-Width Modulation of Electric Heat –

One to three stages of pulse-width modulation of electric heat are available. Energizing for a portion of a three-minute time period modulates the electric heater. This allows exact load matching for energy efficient operation, and optimum zone temperature control. The heating minimum airflow setpoint is enforced during reheat.

The amount of reheat supplied is dependent on both the degree that the space temperature is below the active heating setpoint and the time that the space temperature has been below the active heating setpoint. If not already off, reheat de-energizes when the zone temperature rises more than 0.5°F

(0.28°C) above the heating setpoint.

The Stage 1 “on” time is proportional to the amount of reheat required. For example, when 50% of stage 1 capacity is required, reheat is on for 90 seconds and off for 90 seconds. When

75% of stage 1 capacity is required, reheat is on for 135 seconds and off for

45 seconds. When 100% of stage 1 capacity is required, reheat is on continuously.

Stage 2 uses the same “on” time logic as stage 1 listed above, except stage 1 is always energized. For example, when 75% of unit capacity is required, stage 1 is energized continuously, and stage 2 is on for 90 seconds and off for

90 seconds. When reheat is deenergized, the cooling minimum airflow setpoint is activated. Caution:

Care should be taken when sizing electric heaters. Leaving air temperatures (LAT) should not exceed

100°–110°F, with 95°F being the optimal for zone temperature and comfort control. At elevated LATs, room stratification may result in uneven air distribution and zone temperature complaints. To prevent stratification, the warm air temperature should not be more than 20°F (6.7°C) above zone air temperature. (See Diffuser, “D”, section for additional application details)

VAV-PRC008-EN C 31

Controls—

LonMark DDC

VAV Controller

VPEF

Controller

Logic

Fan-Powered Terminal Units:

On/Off Hot Water Reheat –

One or two stages of on/off hot water reheat are available. Two position water valves complete the HW reheat system and are either fully opened or fully closed. The heating minimum airflow setpoint is enforced during reheat.

On parallel fan-powered units, the fan is energized upon a call for heating. The parallel fan is turned off when the space temperature rises above the fan on/off point (active heating setpoint plus fan offset) plus 0.5°F (0.28°C).

Series fan-powered terminal unit fans are continuously energized during occupied mode. When unoccupied, the fan is energized upon a call for heating or cooling and de-energized when unoccupied zone set point is satisfied.

When the zone temperature falls below the active heating setpoint, the UCM modulates the primary airflow to the minimum heating airflow setpoint.

Stage 1 energizes when the space temperature is below the active heating setpoint, and is de-energized when the space temperature is 0.5°F

(0.28°C) above the active heating setpoint. Stage 2 energizes when the zone temperature is 1°F (0.56°C) or more below the active heating setpoint, and de-energizes when the space temperature is 0.5°F (0.28°C) below the active heating setpoint.

When reheat is de-energized, the cooling minimum airflow setpoint is activated.

Fan-Powered Terminal Units:

Proportional Hot Water Reheat –

Proportional hot water reheat uses

3-wire floating-point-actuator technology. The heating minimum airflow setpoint is enforced during reheat.

On parallel fan-powered units, the fan is energized upon a call for heating. The parallel fan is turned off when the space temperature rises above the fan on/off point (active heating setpoint plus fan offset) plus 0.5ºF (0.28ºC).

Series fan-powered terminal unit fans are continuously energized during occupied mode. When unoccupied, the fan is energized upon a call for heating or cooling and de-energized when unoccupied zone setpoint is satisfied.

The water valve opens as space temperature drops below the heating setpoint. A separate reheat

C 32

VSEF proportional-plus-integral control loop from that controlling airflow into the room is enforced. The degree to which the hot water valve opens is dependent on both the degree that the space temperature is below the active heating setpoint and the time that the space temperature has been below the active heating setpoint. If not already closed, the water valve fully closes when the zone temperature rises above the active heating setpoint by

0.5 °F (0.28 °C). When reheat is deenergized, the cooling minimum airflow setpoint is activated.

Fan-powered Terminal Units:

On/Off Electric Reheat –

One or two stages of staged electric reheat are available. The heating minimum airflow setpoint is enforced during reheat.

On parallel fan-powered units, the fan is energized upon a call for heating. The parallel fan is turned off when the space temperature rises above the fan on/off point (active heating setpoint plus fan offset) plus 0.5°F (0.28°C).

Series fan-powered terminal unit fans are continuously energized during occupied mode. When unoccupied, the fan is energized upon a call for heating or cooling and de-energized when unoccupied zone set point is satisfied.

Stage 1 energizes when the space temperature is below the active heating setpoint, and is de-energized when the space temperature rises

0.5°F (0.28°C) above the active heating setpoint. Stage 2 energizes when the space temperature is 1.0°F (0.56°C) or more below the active heating setpoint, and is de-energized when the space temperature is 0.5°F (0.28°C) below the active heating setpoint.

When reheat is de-energized, the cooling minimum airflow setpoint is activated.

Fan-powered Terminal Units:

Pulse-Width Modulation of Electric

Heat –

One or two stages of pulse-width modulation of electric heat are available. Energizing for a portion of a three-minute time period modulates the electric heater. This allows exact load matching for energy efficient operation and optimum zone temperature control. The heating minimum airflow setpoint is enforced during reheat.

On parallel fan-powered units, the fan is energized upon a call for heating. The parallel fan is turned off when the space temperature rises above the fan on/off point (active heating setpoint plus fan offset) plus 0.5°F (0.28°C).

Series fan-powered terminal unit fans are continuously energized during occupied mode. When unoccupied, fan is energized upon a call for heating or cooling and de-energized when unoccupied zone set point is satisfied.

The amount of reheat supplied is dependent on both the degree that the space temperature is below the active heating setpoint and the time that the space temperature has been below the active heating setpoint. If not already off, reheat de-energizes when the space temperature rises 0.5°F (0.28°C) above the active heating setpoint. The

Stage 1 “on” time is proportional to the amount of reheat required. For example, when 50% of stage 1 capacity is required, reheat is on for 90 seconds and off for 90 seconds. When

75% of stage 1 capacity is required, reheat is on for 135 seconds and off for

45 seconds. When 100% of stage 1 capacity is required, reheat is on continuously.

Stage 2 uses the same “on” time logic as stage 1 listed above, except stage 1 is always energized. For example, when 75% of unit capacity is required, stage 1 is energized continuously, and stage 2 is on for 90 seconds and off for

90 seconds. When reheat is deenergized, the cooling minimum airflow setpoint is activated. When reheat is de-energized, the cooling minimum airflow setpoint it activated.

VAV-PRC008-EN

Ventilation Control

Ventilation control enhances the usability of Trane DDC controllers in more select applications that require measurement of outside air

(ventilation). Ventilation control is designed for use with constant volume single-duct VAV units which modulate

Controls—

LonMark DDC

VAV Controller the primary damper and associated reheat to maintain an average constant discharge air temperature. The reheat is modulated to provide discharge air temperature consistent with AHU supply air temperature (typically 50º–

60ºF). This is critical to ensure that

ASHRAE Standard 62 Ventilation

Ventilation

Control

standards are attained, consistently maintained, and monitored. When connected to a Trane Summit control system, trend logging, remote alarming, etc. is available. In fact, the

Trane Tracer Control System can provide unmatched “peace of mind” by calling/paging the appropriate person(s) when specific alarms occur.

VAV-PRC008-EN C 33

Controls—

LonMark DDC

VAV Controller

Flow Tracking Control

This enhanced VAV DDC controller feature allows two Trane VV550 controllers to coordinate modulation simultaneously. This allows a specific

CFM offset to be maintained. The CFM offset provides pressurization control of an occupied space, while maintaining the comfort and energy savings of a VAV system. A flow tracking system in a given zone consists of a standard Space Comfort

Control VAV (see B )unit plus a singleduct, cooling-only, exhaust VAV unit

(see C ). As the supply VAV unit modulates the supply airflow through the air valve to maintain space comfort, the exhaust box modulates a similar amount to maintain the required CFM differential. This is a simple, reliable means of pressurization control, which meets the requirements of the majority of zone pressurization control applications.

Typical applications include: y School and University laboratories y Industrial laboratories y Hospital operating rooms y Hospital patient rooms y Research and Development facilities y And many more…

Flow

Tracking

The CFM offset is assured and can be monitored and documented when connected to a Trane Tracer Summit

Building Automation System. Flow

Tracking Control is designed to meet most pressurization control projects. If an application calls for pressure control other than flow tracking, contact your local Trane Sales Office for technical support.

How Does It Operate?

Exhaust

Communication link

A

Supply VAV

B

To other VAVs or

Main Control Panel

Primary Air from Main

AHU

C

T

Occupied Space

VAV-PRC008-EN

C 34

Controls—

LonMark DDC

VAV Controller

Control

Drawings

VV550—DDC LonMark Controller for Single-Duct Terminals

DD11–Space Temp Control Cooling Only

DD12–Space Temp Control w/ N.C. Hot Water Valve

DD13–Space Temp Control w/ Modulating Hot Water Valve

DD14 Space Temp Control w/ Stage Electric Heat

DD15–Space Temp Control w/ Pulse-width Modulation

DD17–Space Temp Control w/ N.O. Hot Water Valve

8.

10.

OPTIONAL

TRANSFORMER

HEATER STAGE

CONTACTOR(S)

7.

1ST 2ND 3RD

TO

DAMPER

ACTUATOR

24VAC 60HZ

NEC CLASS - 2

CONTROL CIRCUIT

LOAD = 8 VA

(WITHOUT HEAT)

6.

OPTIONAL

FUSE, DISCONNECT

& TRANSFORMER

10.

OPTIONAL POWER

(50VA)

9.

BK

GREEN

SCREW

8.

OPTIONAL

DISCONNECT

SWITCH

BL

OPTIONAL

FUSE

Y

VV550

GND 24V

5.

R (HOT)

O (COMMON)

BK (RETURN)

Y

(TB4-2) 24VAC

(TB4-1) BIP

(TB4-2) 24VAC

(TB1-2) GND

NOT CONNECTED

OPTIONAL FIELD INSTALLED

OCCUPANCY SENSOR

TB2-6

TB2-5

TB3-3

TB3-2

TB3-1

VAV-PRC008-EN

R

G

PRESSURE

TRANSDUCER

+

-

VOUT

VV550

CONTROL BOX

TWISTED PAIR

COMMUNICATIONS

WIRING

FIELD INSTALLED

NOTES:

1.

Factory Wiring

Field Wiring

Optional or Alternate Wiring

2.

1/4" Quick connect required for all field connections.

TB3-5 TB3-6

OPTIONAL FIELD INSTALLED

AUX TEMP SENSOR

3.

Zone sensor terminals 4 and 5 required twisted pair wiring for communications jack equipped zone sensor option.

4.

No additional wiring required for night setback override (ON/CANCEL).

5.

The optional binary input connects between TB4–1 (BIP) and 24VAC (HOT) from transformer. The binary input can be reconfigured as an occupancy input via the communications interface.

6.

If unit mounted transformer is not provided, polarity from unit to unit must be maintained to prevent permanent damage to control board. If one leg of 24VAC supply is grounded, then ground leg must be connected to TB1–2.

7.

Contactors are 24 VAC: 12VA max/coil (Mercury contactors). 10VA max/coil (Magnetic contactors).

8.

Optional fuse, disconnect switch and transformer wiring (cooling only or hot water units). Wiring goes through

9.

Transformer wire colors: 120V– – –O, 277V–BR, 480V–R/BK, 575V–R, 190V–R, 220V–R, 347V–R.

10.

11.

Three-stage not available with pulse-width modulation.

5 4 3 2

ZONE SENSOR

W/ COMM. JACK

REMOTE MTD.

3.

4.

1

OPTIONAL FIELD

INSTALLED ZONE SENSOR

TO J8

TO J9

TO J10

W (HOT)

BK (CLOSE)

R (OPEN)

PROP.

WATER

VALVE

24VAC

12VA MAX

OPTIONAL FIELD INSTALLED

PROPORTIONAL WATER VALVE

TO J9

TO J8

ON - OFF

WATER VALVE

24 VAC

12VA MAX

OPTIONAL FIELD INSTALLED

0N-OFF WATER VALVE

C 35

Controls—

LonMark DDC

VAV Controller

Control

Drawings

VV550—DDC LonMark Controller for Dual-Duct Terminals

DD11–Space Temp Control (No Remote Heat) and Heating Control

DD18–Space Temp Control (No Remote Heat) and Heating Control—Constant-Volume Control

COOLING VALVE

DAMPER

ACTUATOR

WIRING

6.

24VAC 50/60 HZ

NEC CLASS-2

CONTROL CIRCUIT

LOAD = 16VA

24VAC

TO TB1 ON

HEATING

VALVE UCM

Y

BL

TB4

1 2

OPTIONAL

FUSE, DISCONNECT

& TRANSFORMER

OPTIONAL POWER

TRANSFORMER

(50VA)

GROUND

SCREW

OPTIONAL

DISCONNECT

BL

OPTIONAL

FUSE

Y

TB4 1 2

HEATING VALVE

TWISTED PAIR

COMMUNICATIONS

WIRING

FIELD INSTALLED

DAMPER

ACTUATOR

WIRING

R

G

PRESSURE

TRANSDUCER

+

-

VOUT

VV550

CONTROL BOX

24VAC

TO TB4 IN

COOLING

TB3-5 TB3-6

OPTIONAL FIELD INSTALLED

AUX TEMP SENSOR

5.

(TB4-2) 24VAC

(TB4-1) BIP

(TB4-2) 24VAC

Y

NOT CONNECTED

OCCUPANCY SENSOR

TB2-6

TB2-5 TB3-2

TB3-3

TB3-1

5 4 3 2 1

4.

OPTIONAL FIELD

INSTALLED ZONE SENSOR

Y

BL

R

BK

G

PRESSURE

TRANSDUCER

+

-

VOUT

VV550

CONTROL BOX

NOTE:

1.

Factory Wiring

Field Wiring

Optional or Alternate Wiring

2. 1/4" quick connect required for all field connections.

3. Zone sensor terminals 4 and 5 require twisted pair wiring for communications

jack equipped zone sensor option.

4. No additional wiring required for night setback override (ON/CANCEL).

5. The optional binary input connects between TB4-1 (BIP) and 24VAC (HOT) from transformer. The binary

input can be reconfigured as an occupancy input via the communications interface.

6. If unit mounted transformer is not provided, polarity from unit to unit must be maintained to prevent permanent

damage to control board. If one leg of 24VAC supply is grounded, then ground leg must be connected to TB1-2.

7. Optional fuse, disconnect switch and transformer wiring.

8. Cooling controller space temperature and space setpoint network variables should be bound heating controller.

VAV-PRC008-EN

C 36

TWISTED PAIR

COMMUNICATIONS

WIRING

FIELD INSTALLED

Controls—

LonMark DDC

VAV Controller

Control

Drawings

VV550—DDC LonMark Controller for Fan-Powered Terminals

DD11–Space Temp Control Cooling Only

DD12–Space Temp Control w/ N.C. Hot Water Valve

DD13–Space Temp Control w/ Modulating Hot Water Valve

DD14–Space Temp Control w/ Stage Electric Heat

DD15–Space Temp Control w/ Pulse-width Modulation

DD17–Space Temp Control w/ N.O. Hot Water Valve

TO TRANSFORMER

6.

OPTIONAL FIELD INSTALLED

ELECTRIC HEATER

7.

8.

HEATER STAGE

CONTACTOR(S)

1ST 2ND

TO

DAMPER

ACTUATOR

TO FAN RELAY

5.

R (HOT)

O (COMMON)

GR (NC CONTACT)

BK (RETURN)

Y

(TB4-2) 24VAC

(TB4-1) BIP

(TB4-2) 24VAC

(TB1-2) GND

NOT CONNECTED

OPTIONAL FIELD INSTALLED

OCCUPANCY SENSOR

TB2-6

TB2-5 TB3-2

TB3-3

TB3-1

5 4 3 2

ZONE SENSOR

REMOTE MTD.

4.

1

OPTIONAL FIELD

INSTALLED ZONE SENSOR

TB3-5 TB3-6

VAV-PRC008-EN

PRESSURE

TRANSDUCER

R

BK

G

+

-

VOUT

TWISTED PAIR

COMMUNICATIONS

WIRING

FIELD INSTALLED

NOTES:

1.

Factory Wiring

Field Wiring

Optional or Alternate Wiring

2. 1/4" Quick connect required for all field connections.

3.

4.

No additional wiring required for night setback override (ON/CANCEL).

5.

The optional binary input connects between TB4–1 (BIP) and 24VAC (HOT from transformer. The binary input can be

Transformer provided in all units.

8.

Contactors are 24 VAC: 12 VA max/coil (Mercury contactors). 10VA max/coil (Magnetic contactors).

VV550

CONTROL BOX

OPTIONAL FIELD INSTALLED

AUX TEMP SENSOR

TO J8

TO J9

TO J10

W (HOT)

BK (CLOSE)

R (OPEN)

PROP.

WATER

VALVE

24VAC

12VA MAX

PROPORTIONAL WATER VALVE

TO J9

TO J8

ON - OFF

WATER VALVE

24 VAC

12VA MAX

OPTIONAL FIELD INSTALLED

0N-OFF WATER VALVE

C 37

Controls—

LonMark DDC

VAV Controller

Control

Drawings

VV550—DDC LonMark Controller for ECM Fan-Powered Terminals

DD11—Space Temp Control Cooling Only

DD12—Space Temp Control w/ N.C. Hot Water Valve

DD13—Space Temp Control w/ Modulating Hot Water Valve

DD14—Space Temp Control w/ Stage Electric Heat

DD15—Space Temp Control w/ Pulse-width Modulation

DD17—Space Temp Control w/ N.O. Hot Water Valve

HEATER STAGE

CONTACTOR(S)

OPTIONAL OR FIELD INSTALLED

ELECTRIC HEATER

7.

1ST 2ND

TO

DAMPER

ACTUATOR

8.

TO TRANSFORMER

TO

ECM

MOTOR

C 38

BL

TB3-5 TB3-6

TWISTED PAIR

COMMUNICATIONS

WIRING

FIELD INSTALLED

2

BK

4

BL

NEUT.

RED

BL

1

24V

3

MOTOR

RELAY

R

ECM

BOARD

24V

RED

6.

PRESSURE

TRANSDUCER

R

BK

G

+

VOUT

-

VV550

CONTROL BOX

OPTIONAL FIELD INSTALLED

AUX TEMP SENSOR

TB2-6

TB2-5 TB3-2

TB3-3

TB3-1

5 4 3

ZONE SENSOR

W/ COMM. JACK

REMOTE MTD.

3.

4.

2 1

OPTIONAL FIELD

INSTALLED ZONE SENSOR

5.

R (HOT)

O (COMMON)

GR (NC CONTACT)

BK (RETURN)

Y

(TB4-2) 24VAC

(TB4-1) BIP

(TB4-2) 24VAC

(TB1-2) GND

NOT CONNECTED

OPTIONAL FIELD INSTALLED

OCCUPANCY SENSOR

TO J8

TO J9

TO J10

W (HOT)

BK (CLOSE)

R (OPEN)

PROP.

WATER

VALVE

24VAC

12VA MAX

OPTIONAL FIELD INSTALLED

PROPORTIONAL WATER VALVE

TO J9

TO J8

ON - OFF

WATER VALVE

24 VAC

12VA MAX

OPTIONAL FIELD INSTALLED

0N-OFF WATER VALVE

NOTES:

1.

Factory Wiring

Field Wiring

Optional or Alternate Wiring

2.

1/4" Quick connect required for all field connections.

3.

4.

Zone sensor terminals 4 and 5 require twisted pair wiring for communcations jack equipped zone sensor option.

No additional wiring required for night setback override (ON/CANCEL).

5.

The optional binary input connects between TB4–1 (BIP) and 24VAC (HOT) from transformer. Input can be reconfigured as an occupancy input via the communications interface.

6.

Fan CFM can be easily adjusted from its min CFM to its max CFM via the ECM control board dial switches with a flat-head screwdriver. The switches set the percentage flow.

Contactors are 24 VAC: 12VA max/coil (Mercury contactors). 10VA max/coil (Magnetic contactors).

9.

Three-stage not available with pulse-width modulation.

VAV-PRC008-EN

LonMark Direct Digital

Controller—Unit Control

Module

Controls—

LonMark DDC

VAV Controller

Accessories

The Trane LonMark direct digital controller Unit Control Module (DDC-

UCM) is a microprocessor-based terminal unit with non-volatile memory which provides accurate airflow and room temperature control of Trane and non-Trane VAV air terminal units.

LonMark provides a simple open protocol to allow integration of Trane

VAV units and controls into other existing control systems. The UCM can operate in pressure-independent or pressure-dependent mode and uses a proportional plus integral control algorithm. The controller monitors zone temperature setpoints, zone temperature and its rate of change and valve airflow (via flow ring differential pressure). The controller also accepts an auxiliary duct temperature sensor input or a supply air temperature value from Tracer Summit. Staged electric heat, pulse width modulated electric heat, proportional hot water heat or on/ off hot water heat control are provided when required. The control board operates using

24-VAC power. The Trane LonMark

DDC-UCM is also a member of the

Trane Integrated Comfort ™ systems

(ICS) family of products. When used with a Trane Tracer Summit ™ building management controller or other Trane controllers, zone grouping and unit diagnostic information can be obtained. Also part of ICS is the factorycommissioning of parameters specified by the engineer (see "Factory-

Installed vs. Factory-Commissioned" in the Features and Benefits section for more details).

Note: Trane LonMark DDC-UCM controllres can also take advancage of factory-commissioned quality on non-

Trane systems through LonMark open protocol.

SPECIFICATIONS

Supply voltage:

24 VAC, 50/60 Hz

Maximum VA load:

No heat or fan:

8 VA (Board, Transducer, Zone Sensor, and Actuator)

Note: If using field-installed heat,

24 VAC transformer should be sized for additional load.

Output ratings:

Actuator Output: 24 VAC at 12 VA

1st Stage Reheat: 24 VAC at 12 VA

2nd Stage Reheat: 24 VAC at 12 VA

3rd Stage Reheat: 24 VAC at 12 VA

Binary input:

24 VAC, occupancy or generic.

Auxiliary input:

Can be configured for discharge or primary air temperature sensor.

Operating environment:

32 to 140°F, (0 to 60°C)

5% to 95% RH, Non-condensing

Storage environment:

-40 to 180°F (-40 to 82.2°C),

5% to 95%RH, Non-Condensing

For additional accessory information, refer to pages C 17 – 25.

Physical dimensions:

Width: 5.5" (139.7 mm)

Length:

Height:

4.5" (69.85 mm)

2.0" (44.45 mm)

Connections:

1/4" (6.35 mm) Stab Connections

Communications:

LonMark – Space Comfort Control

(SCC) profile with FTT-10 transceiver.

22 awg. unshielded level 4 communication wire.

Fan control:

Series fan: On unless unoccupied and min. flow has been released.

Parallel fan: On when zone temperature is less than heating setpoint plus fan offset. Off when zone temperature is more than heating setpoint plus fan offset plus 0.5°F (0.28°C).

Heat staging:

Staged electric or hot water proportional or pulse-width modulation

VAV-PRC008-EN C 39

Controls—

LonMark DDC

VAV Controller

Data Lists

Table 1 provides an input/output listing for Tracer VV550/551 VAV controllers. Table 2 provides the configuration properties for the controller. The content of the lists conforms to both the LonMark SCC functional profile 8500 and the LonMark node object.

Table 1. Input/output listing

Input description

Space temperature

Setpoint

Occupancy, schedule

Occupancy, manual command

Occupancy sensor

Application mode

Heat/cool mode input

Fan speed command

Auxiliary heat enable

Valve override

Flow override

Emergency override

Source temperature

Space CO2

Clear alarms/diagnostics

Air flow setpoint input

* Part of the node object.

Input nviSpaceTemp nviSetpoint nviOccSchedule nviOccManCmd nviOccSensor nviApplicMode nviHeatCool

nviFanSpeedCmd nviAuxHeatEnable nviValveOverride nviFlowOverride nviEmergOverride nviSourceTemp nviSpaceCO2 nviRequest* nviAirFlowSetpt

SNVT type

SNVT_temp_p

SNVT_temp_p

SNVT_tod_event

SNVT_occupancy

SNVT_occupancy

SNVT_hvac_mode

SNVT_hvac_mode

SNVT_switch

SNVT_switch

SNVT_hvac_overid

SNVT_hvac_overid

SNVT_hvac_emerg

SNVT_temp_p

SNVT_ppm

SNVT_obj_request

SNVT_flow

Output description

Space temperature

Unit status, mode

Effective setpoint

Effective occupancy

Heat cool mode

Setpoint

Discharge air temperature

Space CO2

Effective air flow setpoint

Air flow

File table address

Object status

Alarm message

*Part of the node object.

Output nvoSpaceTemp nvoUnitStatus nvoEffectSetpt nvoEffectOccup nvoHeatCool nvoSetpoint nvoDischAirTemp nvoSpaceCO2 nvoEffectFlowSP nvoAirFlow nvoFileDirectory* nvoStatus* nvoAlarmMessage

SNVT type

SNVT_temp_p

SNVT_hvac_status

SNVT_temp_p

SNVT_occupancy

SNVT_hvac_mode

SNVT_temp_p

SNVT_temp_p

SNVT_ppm

SNVT_flow

SNVT_flow

SNVT_address

SNVT_obj_status

SNVT_str_asc

Table 2. Configuration properties

Configuration property description

Send heartbeat

Occ temperature setpoints

Minimum send time

Receive heartbeat

Location label

Local bypass time

Manual override time

Space CO2 limit

Nominal air flow

Air flow measurement gain

Minimum air flow

Maximum air flow

Minimum air flow for heat

Maximum air flow for heat

Minimum flow for standby

Firmware major version

Firmware minor version

Flow offset for tracking applications

Local heating minimum air flow

Minimum flow for standby heat

* Part of the node object.

Configuration property nciSndHrtBt nciSetpoints nciMinOutTm nciRecHrtBt nciLocation nciBypassTime nciManualTime nciSpaceCO2Lim nciNomFlow nciFlowGain nciMinFlow nciMaxFlow nciMinFlowHeat nciMaxFlowHeat nciMinFlowStdby nciDevMajVer* nciDevMinVer* nciFlowOffset nciMinFlowUnitHt nciMnFlowStbyHt

SNVT type

SNVT_time_sec

SNVT_temp_setpt

SNVT_time_sec

SNVT_time_sec

SNVT_str_asc

SNVT_time_min

SNVT_time_min

SNVT_ppm

SNVT_flow

SNVT_multiplier

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_flow n/a n/a

SNVT_flow_f

SNVT_flow

SVNT_flow

SCPT reference

SCPTmaxSendTime (49)

SCPTsetPnts (60)

SCPTminSendTime (52)

SCPTmaxRcvTime (48)

SCPTlocation (17)

SCPTbypassTime (34)

SCPTmanOverTime (35)

SCPTlimitCO2 (42)

SCPTnomAirFlow (57)

SCPTsensConstVAV (67)

SCPTminFlow (54)

SCPTmaxFlow (51)

SCPTminFlowHeat (55)

SCPTmaxFlowHeat (37)

SCPTminFlowStby (56)

SCPTdevMajVer (165)

SCPTdevMinVer (166)

SCPToffsetFlow (265)

SCPTminFlowUnitHeat (270)

SCPTminFlowStbyHeat(263)

VAV-PRC008-EN

C 40