Controls— Options DDC...basic types of VariTrane DDC terminal reheat are discussed. Single-Duct:...

Controls—DDC

VAV-PRC008-EN C 3

Options

Controls By Others (All Unit Types)

Unit Heat Control Description Page #

DD00 Trane Actuator for Field-Installed DDC Controls C 8FM00 Factory Installation of Customer Supplied Actuators and DDC Controls C 9FM01 Trane Actuator w/ Factory Installation of Customer-Supplied DDC Controls C 9ENON No Controls or Actuator—Field-Installed DDC or Analog Controls —

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


DD01 Cooling Only C 10DD02 Cooling With Remote Normally-Closed On/Off Hot Water Valve (Normally-Open Outputs) C 10

Cooling Only DD03 Cooling With Remote Proportional Hot Water Valve with Optional Spare On/Off Output C 10(VCCF) DD04 Cooling With Remote Staged On/Off Electric Heat C 10

DD05 Cooling With Remote Pulse-Width Modulation Electric Heat C 10DD07 Cooling With Remote Normally-Open On/Off Hot Water Valve (Normally-Closed Output) C 10

Hot Water DD02 Cooling With Normally-Closed On/Off Hot Water Valve (Normally-Open Outputs) C 11(VCWF) DD03 Cooling With Proportional Hot Water Valve with Optional Spare On/Off Output C 11

DD07 Cooling With Normally-Open On/Off Hot Water Valve (Normally-Closed Output) C 11Electric DD04 Cooling With Staged On/Off Electric Heat C 12(VCEF) DD05 Cooling WIth Pulse-Width Modulation Electric Heat C 12

Dual-Duct Terminal Unit (VDDF)


None DD00 Trane Actuator for Field-Installed DDC Controls C 8(VDDF) DD01 Cooling (No Remote Heat) and Heating Control C 13

DD08 Cooling (No Remote Heat) and Heating—Constant-Volume Control C 14

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)


DD01 Cooling Only C 15DD02 Cooling With Remote Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs C 16

Cooling Only DD03 Cooling With Remote Proportional Hot Water Valve C 16(VPCF, VSCF, DD04 Cooling With Remote Staged On/Off Electric Heat C 15LPCF, LSCF) DD05 Cooling With Remote Pulse-Width Modulation Electric Heat C 15

DD07 Cooling With Remote Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs C 16Hot Water DD02 Cooling With Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs C 16

(VPWF, VSWF DD03 Cooling With Proportional Hot Water Valve C 16LPWF, LSWF) DD07 Cooling With Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs C 16

Electric DD04 Cooling With Staged On/Off Electric Heat C 15(VPEF, VSEF DD05 Cooling With Pulse-Width Modulation Electric Heat C 15LPEF, LSEF)

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


DD01 Cooling Only C 17DD02 Cooling With Remote Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs C 17

Cooling Only DD03 Cooling With Remote Proportional Hot Water Valve C 17(VPCF, VSCF) DD04 Cooling With Remote Staged On/Off Electric Heat C 17

DD05 Cooling With Remote Pulse-Width Modulation Electric Heat C 17DD07 Cooling With Remote Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs C 17

Hot Water DD02 Cooling With Normally-Closed On/Off Hot Water Valve with Normally-Open Outputs C 17(VPWF, VSWF) DD03 Cooling With Proportional Hot Water Valve C 17

DD07 Cooling With Normally-Open On/Off Hot Water Valve with Normally-Closed Outputs C 17Electric DD04 Cooling With Staged On/Off Electric Heat C 17

(VPEF, VSEF) DD05 Cooling With Pulse-Width Modulation Electric Heat C 17

C 4

Controls—DDC

VAV-PRC008-EN

GeneralLogic

Trane DDC–UCM operate in a pressure-dependent (PD)mode of operation.

• Cooling and heating control action ofair valve. In cooling control action, theDDC controller matches cooling airflowto cooling load. In heating controlaction, the DDC controller matches theheating airflow to control heating load.The DDC controller will automaticallychange over to cooling control action ifthe supply air temperature is below theroom temperature and willautomatically change over to heatingcontrol action if the supply airtemperature is 10°F or more above theroom temperature. If the supply airtemperature is between the roomtemperature and the roomtemperature plus 10°F, then the DDCcontroller will provide the activeminimum airflow. The DDC controllerfirst chooses the Tracer Summit-supplied supply air temperature valueto use for auto changeover. If this is notavailable, it uses the temperatureprovided by the optional auxiliarytemperature sensor. If this is also notavailable, it uses the heating/coolingmode assigned by Tracer Summit orthe DDC controller’s service tool(Everyware TM or Rover TM V4).

• Multiple reheat control optionsincluding staged electric, staged hot-water (normally on or normally off),proportional hot-water, and slowpulsed width modulation. Modulating

reheat options utilize a separate reheatproportional-plus-integral control loopfrom that controlling airflow into theroom. Staged reheat options utilize acontrol algorithm based on heatingsetpoint and room temperature.

• 24 VAC binary input that can beconfigured as a generic input or asoccupancy input. When the DDCcontroller is operation with TracerSummit, the status of the input isprovided to Tracer Summit for itsaction. In stand-alone operation andwhen configured for an occupancyinput, the input will control occupancystatus of the DDC controller.

• Auxiliary temperature analog inputthat can be configured for an auxiliarytemperature sensor or a 2-to-10 VDCCO2 sensor. When configured fortemperature, the value of the input isused as status-only by Tracer Summit ifTracer Summit is providing a supply airtemperature to the DDC controller.Otherwise, the input will be used fordetermining control action of the DDCcontroller. When configured for a CO2sensor, the value of the input is used asa status-only input by Tracer Summit.

• Dual-duct support with two DDCcontrollers. One DDC controllercontrols the cooling air valve and theother controller controls the heating airvalve. With constant-volumesequences, the discharge air volume isheld constant by controlling dischargeair volume with the heating UCM.

Control Logic—DDC controllers are today’s industrystandard. DDC controllers providesystem-level data used to optimizesystem performance. Variables such asoccupied/unoccupied status, minimumand maximum airflow setpoints,temperature and temperaturesetpoints, valve position, fan status (onor off, and mode of operation: series orparallel), reheat status (on or off), boxtype and air valve size, temperaturecorrection offsets, flow correctionvalues, ventilation fraction, etc. areavailable on a simple twisted-shieldedwire pair.

Trane DDC controllers provide Trane-designed, solid-state electronicsintended specifically for VAVtemperature control in space comfortapplications. DDC control capabilitiesinclude:

• Proportional plus integral control loopalgorithm for determining requiredairflow needed to control roomtemperature. Airflow is limited byactive minimum and maximumairflow setpoints.

• Pressure-independent (PI) operation,which automatically adjusts valveposition to maintain required airflow.In certain low-flow situations or incases where the flow measurementhas failed, the DDC controller will

Flow Sensor Signal vs. Airflow Delivery

Note: Flow sensor DP (in. wg) is measured at the flow ring to aid in system balancing and commissioning. See "Valve/Controller AirflowGuidelines" in each section for unit performance.

0.01

0.1

1

5

10 100 1,000 10,000Cfm

Flo

w S

enso

r D

P (

In. w

g)

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

Controls—DDC

VAV-PRC008-EN C 5

DDCReheatControl

DDC Remote HeatControl OptionsWhen heat is added to the primary airat the VAV unit before it enters thezone, the air is said to be reheated. Theoperating characteristics of the fourbasic types of VariTrane DDC terminalreheat are discussed.

Single-Duct: On/Off Hot WaterReheat—Three stages of on/off hotwater reheat are available. The watervalves used are 2-position and areeither fully-opened or fully-closed. Theheating minimum airflow setpoint isenabled during reheat.

Stage 1 energizes when the spacetemperature is at or below the heatingsetpoint. When the zone temperaturerises above the active heating setpointby 0.5°F (0.28°C), stage 1 is de-energized. Stage 2 energizes when thespace temperature is 1°F (0.56°C) ormore below the active heatingsetpoint, and is de-energized when thespace temperature is 0.5°F (0.28°C)below the active heating setpoint.Stage 3 energizes when the zonetemperature is 2°F (1.11°C) or morebelow the active heating setpoint, andde-energizes when the spacetemperature is 1.5°F (0.83°C) below theactive heating setpoint. When reheat isde-energized, the cooling minimumairflow setpoint is activated.

Single-Duct: Proportional HotWater Reheat—Proportional hotwater reheat uses 3-wire floating-point-actuator technology. The heatingminimum airflow setpoint is enabledduring reheat.

The water valve opens as spacetemperature drops below the heatingsetpoint. Water valve position isdependent on both the degree thatspace temperature is below the activeheating setpoint and the time that thespace temperature has been below theactive heating setpoint. If not alreadyclosed, the water valve fully closeswhen the zone temperature risesabove the active heating setpoint by0.5 °F (0.28 °C). An additional on/offremote heat output is available andenergized when the proportional valveis driven 100% open and de-energizedwhen the proportional valve reaches50% open. When reheat is de-energized, the cooling minimumairflow setpoint is activated.

Single-Duct: On/Off ElectricReheat—Three stages of stagedelectric reheat are available. Theheating minimum airflow setpoint isenabled during reheat.

Stage 1 is energized when the spacetemperature falls below the activeheating setpoint and minimum airflowrequirements are met. When the zone

temperature rises above the activeheating setpoint by 0.5°F (0.28°C),stage 1 is de-energized. Stage 2energizes when the space temperatureis 1°F (0.56°C) or more below the activeheating setpoint, and is de-energizedwhen the space temperature is 0.5°F(0.28°C) below the active heatingsetpoint. Stage 3 energizes when thezone temperature is 2°F (1.11°C) ormore below the active heatingsetpoint, and de-energizes when thespace temperature is 1.5°F (0.83°C)below the active heating setpoint.When reheat is de-energized, thecooling minimum airflow setpoint isactivated.

Single-Duct: Pulse-WidthModulation of Electric Heat—Electric heat is modulated byenergizing for a portion of a three-minute time period. The heatingminimum airflow setpoint is enabledduring reheat. This allows exact loadmatching for energy efficientoperation, and optimum zonetemperature control. One or twostages can be used.

The amount of reheat supplied isdependent on both the degree thatspace temperature is below the activeheating setpoint and the time that thespace temperature has been below theactive heating setpoint. If not alreadyoff, reheat de-energizes when the zonetemperature rises more than 0.5°F(0.28°C) above the heating setpoint.

The Stage 1 “on” time is proportionalto the amount of reheat required. Forexample, when 50% of stage 1capacity is required, reheat is on for 90seconds and off for 90 seconds. When75% of stage 1 capacity is required,reheat is on for 135 seconds and off for45 seconds. When 100% of stage 1capacity is required, reheat is oncontinuously.

Stage 2 uses the same “on” time logicas stage 1 listed above, except stage 1is always energized. For example,when 75% of unit capacity is required,stage 1 is energized continuously, andstage 2 is on for 90 seconds and off for90 seconds. When reheat is de-energized, the cooling minimumairflow setpoint is activated.

VCEF

C 6

Controls—DDC

VAV-PRC008-EN

DDCReheatControl

Fan-Powered Terminal Units:On/Off Hot Water Reheat—Twostages of on/off hot water reheat areavailable. The water valves used are2-position and are either fully-openedor fully-closed. The heating minimumairflow setpoint is enabled duringreheat.

On parallel-configured fan-poweredunits, the fan is energized when thespace temperature falls below theactive fan on/off point (active heatingsetpoint plus fan offset). The parallelfan is turned off when the spacetemperature rises above the active fanon/off point (active heating setpointplus fan offset) plus 0.5°F (0.28°C).

Series configured fan-poweredterminal units utilize continuous fanoperation during all occupied settingsand while unoccupied when minimumairflows are being enforced.

When the zone temperature falls belowthe active heating setpoint, the UCMmodulates the primary airflow to theminimum heating airflow setpoint.

Stage 1 energizes when the spacetemperature is below the activeheating setpoint, and is de-energizedwhen the space temperature is 0.5°F(0.28°C) above the active heatingsetpoint. Stage 2 energizes when thezone temperature is 1°F (0.56°C) ormore below the active heatingsetpoint, and de-energizes when thespace temperature is 0.5°F (0.28°C)below the active heating setpoint.When reheat is de-energized, thecooling minimum airflow setpoint isactivated.

Fan-Powered Terminal Units:Proportional Hot Water Reheat—Proportional hot water reheat uses3-wire floating-point-actuatortechnology. The heating minimumairflow setpoint is enabled duringreheat.


Series-configured fan-poweredterminal units utilize continuous fanoperation during all occupied settingsand while unoccupied when minimumairflows are being enforced.


The water valve opens as spacetemperature drops below the heatingsetpoint. The degree to which the hotwater valve opens is dependent onboth the degree that spacetemperature is below the activeheating setpoint and the time that thespace temperature has been below theactive heating setpoint. If not alreadyclosed, the water valve fully closeswhen the zone temperature risesabove the active heating setpoint by0.5 °F (0.28 °C). When reheat is de-energized, the cooling minimumairflow setpoint is activated.

Fan-powered Terminal Units:On/Off Electric Reheat—Two stagesof staged electric reheat are available.The heating minimum airflow setpointis enabled during reheat.

On parallel-configured fan-poweredunits, the fan is energized when thespace temperature falls below theactive fan on/off point (active heatingsetpoint plus fan offset). The parallelfan is turned off when the spacetemperature rises above the active fanon/off point (active heating setpointplus fan offset).

Series-configured fan-poweredterminal units utilize the continuous fanoperation during all occupied settingsand while unoccupied when minimumairflows are being enforced.


Stage 1 energizes when the spacetemperature is below the activeheating setpoint, and is de-energizedwhen the space temperature rises0.5°F (0.28°C) above the active heatingsetpoint. Stage 2 energizes when thespace temperature is 1.0°F (0.56°C) ormore below the active heatingsetpoint, and is de-energized when thespace temperature is 0.5°F (0.28°C)below the active heating setpoint.When reheat is de-energized, thecooling minimum airflow setpoint isactivated.

Fan-powered Terminal Units:Pulse-Width Modulation ofElectric Heat—Electric heat ismodulated by energizing for a portionof a three-minute time period. Theheating minimum airflow setpoint isenabled during reheat. This allowsexact load matching for energyefficient operation, and optimum zonetemperature control. One or two stagescan be used.


VPEF

VSEF

Controls—DDC

VAV-PRC008-EN C 7

DDCReheatControl

Series-configured fan-poweredterminal units utilize the continuous fanoperation during all occupied settingsand while unoccupied when minimumairflows are being enforced.


The amount of reheat supplied isdependent on both the degree thatspace temperature is below the activeheating setpoint and the time that thespace temperature has been below the

Stage 2 uses the same “on” time logicas stage 1 listed above, except stage 1is always energized. For example,when 75% of unit capacity is required,stage 1 is energized continuously, andstage 2 is on for 90 seconds and off for90 seconds. When reheat is de-energized, the cooling minimumairflow setpoint is activated. Whenreheat is de-energized, the coolingminimum airflow setpoint it activated.

active heating setpoint. If not alreadyoff, reheat de-energizes when thespace temperature rises 0.5°F (0.28°C)above the active heating setpoint. TheStage 1 “on” time is proportional to theamount of reheat required. Forexample, when 50% of stage 1capacity is required, reheat is on for 90seconds and off for 90 seconds. When75% of stage 1 capacity is required,reheat is on for 135 seconds and offfor 45 seconds. When 100% of stage 1capacity is required, reheat is oncontinuously.

C 8

Controls—DDC

VAV-PRC008-EN

ControlDrawings

Heat Controls24-VAC Fan/Staged

2nd

1st

C

Fan

Load: 10 VA (MAGN)

Load: 12 VA (MERC)

Load: 6.5 VA

FAN RELAY

2

1

3

5

4

2

1

HEATER CONTROL BOX

3rd

2

3

4

5.

DamperActuator

Line Voltage

CW

COM

CCW

24 VAC, 50 VATransformer

Load: 4 VA

24-VAC toCustomerControls

By OthersDamper Controls

24-VACM

Load: 4 VA

ActuatorDamper24-VAC

Damper ControlsBy Others

COM

CW

CCW

M

Y

BL

NOTES:

1. Factory-installed

Field Wiring

Optional or installed by others

2.

Only available with fan-powered units.3.

4. Located in Heater Terminal box.

Only available with dual-duct units.5.

DD00—Available for all VariTrane Units(Trane actuator for field-installed DDC controls)A unit controller is not provided. The air damper actuator is provided with an integral screw terminal block. The fan contactor (fan-powered units), 24-VAC control power transformer (optional for single- and dual-ductunits), and factory-installed electric heater contactor wires are attached to the outside of the unit for field connection of controls. A second actuator is provided with an integral screw terminal for dual-duct units.

Located in Heater Terminal Box for electric heat on single-duct units.Located in Control Box for cooling only and hot water heat on single-duct units.Located in Control Box on all fan-powered units.

Controls—DDC

VAV-PRC008-EN C 9

ControlDrawings

1st stage - 24 VAC

2nd stage - 24 VAC

3rd stage - 24 VAC

Com

CCW

COM

CW

24 VAC

Y

BL

24 VAC, 50vaStandard – (Fan-powered)

Optional –

Transformer

Customer-furnishedController

ElectricReheat

Contactors

Hot WaterReheat

FanRelay

Actuator Customer-furnishedor Trane-supplied

Trane-supplied(Fan-powered only)

Trane-supplied

Available on all VariTrane UnitsFM00 – Customer-supplied actuator and DDC controller factory-installed.FM01 – Trane actuator and customer-supplied DDC controller factory-installed

Optional or installed by others

NOTES:

1. Factory-installed

Field Wiring

OptionalTrane-supplied

water valvefield-wired

to controller

AirflowSensor

LO HI Trane-supplied

All customer furnished controllers and actuators are installed and wired per control manufacturer's specifications. Metal control enclosure is standard.

2. NEMA-1 Enclosure provided.

C 10

Controls—DDC

VAV-PRC008-EN

VCCF—Single-Duct Terminal Units

YT

B1-

2B

LT

B1-

1

OptionalTransformer

50 VA

Auxillary Temperature Sensor

input can be reconfigured as a CO2 Sensor Input via the communications interface.

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

No additional wiring required for night setback override (On/Cancel).

supply is grounded, then ground leg must be connected to TB1-2.

If unit-installed transformer is not provided, polarity from unit to unit must bemaintained to prevent permanent damage to control board. If one leg of 24 VAC

transformer. The binary input can be reconfigured as an occupancy input via the

As shipped, the AUX input is configured as an Auxiliary Temperature Input. The AUX

The optional binary input connects between TB4-1 (BIP) and 24 VAC (Hot) from the

Zone sensor terminals 4 and 5 require shielded twisted pair wiring for zone sensor

S-terminal is not to be used with VariTrane.

equipped with communications jack. Zone sensor with LCD requires a sixth wire

communications interface.

4.

7.

8.

6.

5.

3.

2.

NOTES:

1.

Optional Field-Installed

24V

TB

3-2

TB

3-1GRN

TB

2-5

TB

2-6 YEL

TB

2-4

TB

2-3

TB

2-2

TB

2-1

Communications WiringShielded Twisted Pair

IN OU

T

IN

6.

TB3-5

OU

T

ZONE GND

+

J7J9J10

J11

+ -

SwitchAddress

TB

1-21

TB

4-1

TB

1-1

J8

CONTROL BOARDD.D.C.\U.C.M.

+- -

ACTBIP GND

J1

W-H

OT

W-H

OT

G-O

PE

N

R-C

LOS

E

ActuatorWiring

Damper

12 VA MAX

WATER VALVEON–OFF

24 VAC

12 VA MAX

VALVEWATERPROP.

24 VAC

24 VAC, 12 VAMAX/COIL

HEATER STAGECONTACTOR(S)

7.

TB

3-6

TB

3-3

TB

3-5

D.D.C.\U.C.M.Control Box

TB3-6

SET A/CO2 GND

BK (CLOSE)

TO J8TO J9

TO J10TO J9

R (OPEN)

TO J8

TO J10TO J9

TO J8W (HOT)

1ST STG.2ND STG.

HOT

PR

ES

S

S

1

J3

VOUT-G

BK+

TransducerPressure

R

4.

Zone SensorRemote MTD.

2 1

TB3-2 TB3-1

TB3-1

Control Circuit

(Without heat)

24 VAC 60HZNEC CLASS-2

Load= 12 VA

TB3-2

Zone SensorOptional Field-Installed

Zone Sensor

Remote MTD.w/ Comm. Jack

3. 4.

TB3-3

45 23 1

8.TB2-5

TB2-6

Optional or Alternate WiringField WiringFactory Wiring

with 24 V from a transformer.


Proportional Water ValveOptional Field-Installed

On-Off Water ValveOptional Field-Installed

Electric HeaterOptional Field-Installed

(Normal Operation: Cooling Only with Reheat Capabilities)DD01 – Cooling OnlyDD02 – Cooling with Remote Normally-Closed On/Off Hot Water Valve (Normally-Open Outputs)DD03 – Cooling with Remote Proportional Hot Water Valve with Optional Spare On/Off OutputDD04 – Cooling with Remote Staged On/Off Electric HeatDD05 – Cooling with Remote Pulse-Width Modulation Electric HeatDD07 – Cooling with Remote Normally-Open On/Off Hot Water Valve (Normally-Closed Outputs)

See "General Logic" and "DDC Reheat Control" sections for Sequence of Operation.

NOT CONNECTED

OPTIONAL FIELD INSTALLEDOCCUPANCY SENSOR

Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

GR (NC CONTACT)

BK (RETURN)

O (COMMON)

5.

OPTIONAL FIELD INSTALLEDCO2 SENSOR

(TB3-6) GND

(TB3-5) A/CO2

(TB1-1) 24V

CO2SENSOR GND

OUT

24V

6.

9.

9. Connect shielding from each communication cable together and insulate.

ControlDrawings

Controls—DDC

VAV-PRC008-EN C 11

-VOUT

PRESSURETRANSDUCER

(Without heat)

Control CircuitLoad= 12 VA

NEC CLASS-224 VAC 60HZ

J8J11

J10

J9 J7

AddressSwitch

TB

2-1

TB

2-2

+ -

TB

2-3

TB

2-4

+

R-C

LO

SE

Wiring

DamperActuator

G-O

PE

N

W-H

OT

TB

1-1

GND

D.D.C.\U.C.M.

J1

ACTBIP

TB

4-11

TB

1-2

GND

YEL

Control Board

TB

2-6

TB

2-5

+- -

GRN

TB

3-1

TB

3-2

ZONE

24V

J3

GND

PR

ES

S

TB

3-5

A/CO2

TB

3-3

SET

TB

3-6

1

+BK

R

G

S

7.

TB2-6

TB3-2

5

8.

14 3 2

TB3-1TB2-5

TB3-3TB3-2


w/ Communication JackZone Sensor

Remote MTD.

3. 4.

TB3-1

2 1

REMOTE MTD.ZONE SENSOR

4.

Control BoxD.D.C.\U.C.M.


Zone sensor terminals 4 & 5 require shielded twisted pair wiring for communications jack equipped zone sensor options.Zone sensor with LCD requires a sixth wire with 24 V from a transformer.

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

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

As shipped, the Aux. Input is configured as an Auxillary Temperature Input. The Aux. Input can be reonconfigured as aCO2 sensor input via the communications interface.

S Terminal not to be used with VariTrane.

If unit-installed transformer is not provided, polarity from unit to unit must be maintained to prevent permanent damageto control board. If one leg of 24-VAC supply is grounded, the ground leg must be connected to TB1-2.

Shielded Twisted PairCommunications Wiring

ININ OU

T

OU

T

NOTES:

5.

1.

2.

3.

4.

6.

8.

7.

TB3-5

6.

TB3-6

BK (CLOSE)TO J9

TO J8

TO J1024 VAC

Prop.WaterValve

12 VA Max.

W (HOT)

R (OPEN)

24 VACWater Valve

12 VA Max.

ON–OFF

W-H

OT

VCWF—Single-Duct Terminal Units(Normal Operation: Cooling with Hot Water Reheat)DD02 – Cooling with Normally-Closed On/Off Hot Water Valve (Normally-Open Outputs)DD03 – Cooling with Proportional Hot Water Valve with Optional Spare On/Off OutputDD07 – Cooling with Normally-Open On/Off Hot Water Valve (Normally-Closed Outputs)


TB

1-1

BL

TB

1-2

Y

TransformerOptional

50 VA

Optional or Alternate WiringField WiringFactory Wiring


AUX. TEMPERATURE SENSOR


Proportional Water ValveOptional Field-Installed

(TB1-2) GND

NOT CONNECTED


Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

BK (RETURN)

O (COMMON)

5.


(TB3-5) A/CO2

(TB1-1) 24V

CO2SENSOR

OUT

24V

6.

9.


OPTIONAL FIELD INSTALLED

ControlDrawings

C 12

Controls—DDC

VAV-PRC008-EN

ControlDrawings

(Normal Operation: Cooling with Electric Reheat)DD04 – Cooling with Staged On/Off Electric HeatDD05 – Cooling with Pulse-Width Modulation Electric Heat


VCEF—Single-Duct Terminal Units

Shielded Twisted PairCommunications Wiring

Heater Stage

GND

PR

ES

SD.D.C.\U.C.M.Control Board

ACT

TB2-

6

TB2-

5

TB2-

1

TB2-

4

TB2-

3

TB2-

2

IN OU

T

IN OU

T

++ -

AddressSwitch

J10

J11

J7J9

- -+

J8

J1

TB3-

3

TB3-

2

TB3-

1

TB3-

6

TB3-

5

ZONE SETGND A/CO2

GND

GRNYEL

1

BIP

TB1-

2

TB4-

1

24V

TB1-

1

-

+

PressureTransducer

VOLT

7.

1

G

BK

J3R

Transformer

TB1-

2

TB1-

1

2ND

STG

.

1ST

STG

.

3RD

STG

.

HO

T

VR O

BR

2ND3RD 1ST

9.

BLY

W-H

OT

W-H

OT

G-O

PE

N

R-C

LOS

E

DamperActuatorWiring

OptionalContactor(s)

8.

S


Zone sensor terminals 4 and 5 require shielded twisted pair wiring for zone sensor equipped with communications jack. Zone sensor with LCD requires a sixth wire with 24 V from a transformer.


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

As shipped, the AUX input is configured as an Auxiliary Temperature Input. The AUX input can be reconfigured as a CO2 Sensor Input via the communications interface.


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

Contactors are 24 VAC: 12 VA max./coil (mercury contactors) and 10 VA max./coil (magnetic coils).

Connect shielding from each communication cable together and insulate.

1.

2.

Optional or Alternate Wiring

Factory WiringField Wiring

NOTES:

TB3-1

Zone SensorRemote MTD.

TB3-1

TB3-2

1

4.

2

TB3-2

TB2-6

4.

2

3.

45 3

TB2-5TB3-3

1

6.


FIELD INSTALLEDAUX. TEMPERATURE SENSOR

6.

1.0–10.0VDC OUT

COM

TB3-6TB3-5 TB3-6 TB3-5

3.

24-VAC 60 HZNEC Class–2Control CircuitLoad = 12 VA(Without heat)

Optional Field-InstalledZone Sensor

Optional Field-InstalledZone Sensor

Zone Sensorw/ Comm. JackRemote MTD.

D.D.C.\U.C.M.Control Box

4.

5.

6.

7.

9.

8.

(TB1-2) GND

NOT CONNECTED


Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

GR (NC CONTACT)

BK (RETURN)

O (COMMON)

5.

10.

10.

Controls—DDC

VAV-PRC008-EN C 13

ControlDrawings

24VAC FROM TB4 ON

VOUT

PRESSURE

HEATING VALVE UCM

TRANSDUCER

COOLING VALVE

-

J11

J10

J9 J8J7

ADDRESSSWITCH

TB

2-1

TB

2-2

-+

TB

2-3

TB

2-4

+

WIRING

DAMPERACTUATOR

GND

24V

J1

ACT BIP

TB

4-1

1

TB

1-1

TB

1-2

GND

YEL

D.D.C.\U.C.M.CONTROL BOARD

TB

2-6

TB

2-5

+ -

GRNZONE

TB

3-2

TB

3-1

24VAC

Y

BL

J3

PR

ES

S

A/CO2SET

TB

3-5

TB

3-3

GND

1

TB

3-6

R

G

BK+

-

7.

S

D.D.C.\U.C.M.CONTROL BOX

SHIELDED TWISTED PAIRCOMMUNICATIONS WIRING

OU

T

OU

T

IN IN

HEATING VALVE UCMFROM TB3 ON

BL BK R

W-H

OT

G-O

PE

NR

-CL

OS

E

W-H

OT

DAMPERACTUATOR

WIRING

W-H

OT

W-H

OT

R-C

LO

SE

BK

-OP

EN

24VAC

VALVE UCM

TO TB1 ONCOOLING

CONTROL CIRCUITNEC CLASS-2

24VAC 50/60 HZHEATING VALVE

LOAD = 24VA

TB4 2 31

Y BL

BL

Y

54

COOLING VALVE UCM

ACT


COMMUNICATIONS WIRING

TB

2-5

TB

2-6

TB

2-3

TB

2-2

TB

2-1

TB

2-4

SWITCHADDRESS

J11

J10

+

J8J9 J7

J1

-- + -+

SHIELDED TWISTED PAIR

IN OU

T

IN OU

T

VOUT

TRANSDUCERPRESSURE

TB

3-6

TB

3-3

TB

3-5

TB

3-2

TB

3-1

A/CO2

TB

4-1

1

BIP

TB

1-1

TB

1-2

24VGND

ZONE

FACTORY

REMOVEDAT

GRNYELGND SET

W4W2

J3

PR

ES

S

S

1W1

GND

+

G

BK

R

-

FROM TB3 ON

BL BK R

YT

B1

-2B

LT

B1

-1

OPTIONALTRANSFORMER

50VA

(Normal Operation: Cooling and Heating)DD01 – Cooling (No Remote Heat) and Heating Control

See "General Logic" and DDC Reheat Control" sections for Sequence of Operation.

VDDF – Dual-Duct Terminal Units

W/ COMM. JACK

OPTIONAL FIELD

REMOTE MTD.

ZONE SENSOR

TB3-2TB3-1 TB3-1


OPTIONAL FIELDINSTALLED ZONE SENSORINSTALLED ZONE SENSOR

4.

3 25 4

TB3-2

12

4.3.

TB2-6TB2-5

TB3-3

1

6.

OPTIONAL FIELD I LEDAUX TEMP S

TB3-6TB3-5

FACTORY WIRING

occupancy input via the communications interface. Occupancy sensor

zone sensor equipped with communications jack. Zone sensor with LCD


Zone sensor terminals 4 and 5 require shielded twisted pair wiring for

The optional binary input connects between TB4-1 (BIP) and 24 VAC

As shipped, the AUX input is configured as an Auxiliary Temperature

(Hot) from the transformer. The binary input can be reconfigured as an

must be maintained to prevent permanent damage to control board. IfIf unit-installed transformer is not provided, polarity from unit to unit

one leg of 24 VAC supply is grounded, then ground leg must be



Input. The AUX input can be reconfigured as a CO2 Sensor Input via

4.

8.

7.

5.

6.

2. 3.

1.NOTES:

FIELD WIRING

CONTROL BOXD.D.C.\U.C.M.

7.

8.

is connected to both UCM's.

the communications interface.

connected to TB1-2.

requires a sixth wire with 24 V from a transfomer.

(TB1-2) GND

NOT CONNECTED


Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

GR (NC CONTACT)

BK (RETURN)

O (COMMON)

5.


(TB3-6) GND

(TB3-5) A/CO2

(TB1-1) 24V

CO2SENSOR GND

OUT

6.

9.


C 14

Controls—DDC

VAV-PRC008-EN

ControlDrawings

24VAC FROM TB4 ON

VOUT

PRESSURE

HEATING VALVE UCM

TRANSDUCER

COOLING VALVE

-

J11

J10

J9 J8J7

ADDRESSSWITCH

TB

2-1

TB

2-2

-+

TB

2-3

TB

2-4

+

WIRING

DAMPERACTUATOR

GND

24V

J1

ACT BIP

TB

4-1

1

TB

1-1

TB

1-2

GND

YEL


TB

2-6

TB

2-5

+ -

GRNZONE

TB

3-2

TB

3-1

24VAC

Y

BL

J3

PR

ES

S

A/CO2SET

TB

3-5

TB

3-3

GND

1

TB

3-6

R

G

BK+

-

7.

S



OU

T

OU

T

IN IN

ZONE SENSORFIELD INSTALLED

BL BK R

W-H

OT

G-O

PE

NR

-CLO

SE

W-H

OT

DAMPERACTUATOR

WIRING

W-H

OT

W-H

OT

R-C

LO

SE

BK

-OP

EN

24VAC

VALVE UCM

TO TB1 ONCOOLING

CONTROL CIRCUITNEC CLASS-2

24VAC 50/60 HZHEATING VALVE

LOAD = 24VA

TB4 2 31

Y BL

BL

Y

54

ACT


COMMUNICATIONS WIRING

TB

2-5

TB

2-6

TB

2-3

TB

2-2

TB

2-1

TB

2-4

SWITCHADDRESS

J11

J10

+

J8J9 J7

J1

-- + -+

SHIELDED TWISTED PAIR

IN OU

T

IN OU

T

VOUT

TRANSDUCERPRESSURE

TB

3-6

TB

3-3

TB

3-5

TB

3-2

TB

3-1

A/CO2

TB

4-1

1

BIP

TB

1-1

TB

1-2

24VGND

ZONEGRNYEL

GND SET

J3

PR

ES

S

S

1

GND

+

G

BK

R

-

YT

B1

-2B

LT

B1

-1

OPTIONALTRANSFORMER

50VA

(Normal Operation: Cooling and Heating)DD08 – Cooling (no Remote Heat) and Heating - Constant Volume Control


VDDF – Dual-Duct Terminal Units

W/ COMM. JACK

OPTIONAL FIELD

REMOTE MTD.

ZONE SENSOR

TB3-2TB3-1 TB3-1


OPTIONAL FIELDINSTALLED ZONE SENSORINSTALLED ZONE SENSOR

4.

3 25 4

TB3-2

12

4.3.

TB2-6TB2-5

TB3-3

1

6.

OPTIONAL FIELD I LEDAUX TEMP SE

TB3-6TB3-5

FACTORY WIRING

occupancy input via the communications interface. Occupancy sensor

zone sensor equipped with communications jack. Zone sensor with LCD


Zone sensor terminals 4 and 5 require shielded twisted pair wiring for

The optional binary input connects between TB4-1 (BIP) and 24 VAC

As shipped, the AUX input is configured as an Auxiliary Temperature

(Hot) from the transformer. The binary input can be reconfigured as an

must be maintained to prevent permanent damage to control board. IfIf unit-installed transformer is not provided, polarity from unit to unit

one leg of 24 VAC supply is grounded, then ground leg must be



Input. The AUX input can be reconfigured as a CO2 Sensor Input via

4.

8.

7.

5.

6.

2.

3.

1.NOTES:

FIELD WIRING


7.

8.

is connected to both UCMs.

the communications interface.

connected to TB1-2.

9.

discharge of the unit and is used to control constant volume.The flow ring, normally used for sensing heating airflow, is placed at the9.

3. 4.

requires a sixth wire with 24 V from a transformer.

(TB1-2) GND

NOT CONNECTED


Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

GR (NC CONTACT)

BK (RETURN)

O (COMMON)

5.


(TB3-6) GND

(TB3-5) A/CO2

(TB1-1) 24V

CO2SENSOR GND

OUT

24V

6.


10.

Controls—DDC

VAV-PRC008-EN C 15

ControlDrawings

For Use With VariTrane Fan-Powered Terminals

TRANSFORMERSTANDARD

PROVIDED

Y

TB

1-1

TB

1-2

BL

50VA

12

TB

1-1

TB

1-2

TB

4-1

FAN CONTROLBOX WIRING

ACTUATORDAMPER

WIRING

WH

-HO

T

G-O

PE

N

WH

-HO

T

R-C

LOS

EBR

R-FAN

24 VAC

Y

BL

TB2-5TB2-6

5

TB3-1TB3-2

TB3-3

24 3 1

W/ COMM. JACK

OPTIONAL FIELDINSTALLED ZONE SENSOR

TB3-2

3.

REMOTE MTD.

4.

ZONE SENSOR

TB3-1

OPTIONAL OR ALTERNATE WIRING

CONTROL BOARDD.D.C.\U.C.M.

-

J9

ADDRESSSWITCH

J10

J11

+

TB

2-2

TB

2-1

J7 J8

ACT

J1

TB

2-5

-+

TB

2-3

TB

2-4

-+

TB

2-6 YEL

WI ING

SHIELDED

COMMUNICATIONSTWISTED PAIR

IN IN OU

T

OU

T

NOTES:

1.FIELD WIRINGFACTORY WIRING

3.

2.

4.

6.

5.

7.


TRANSDUCERPRESSURE

A/CO2

GND

1

BIP 24V

ZONE

GRN

TB

3-1

SET

TB

3-5

TB

3-3

GND

TB

3-2

PR

ES

S

VOUT

J3

BK

R +

1

7.

TB

3-6

GND

G -

INSTALLED ZONE SENSOROPTIONAL FIELD

4.


OPTIONAL FIELD INSTALLED

BK (CLOSE)

R (OPEN)

OPTIONAL FIELD INSTALLED ELECTRIC HEATER

1ST STG.

2ND STG.

TO J8

TO J9

TO J10

TO J8

TO J10

TO J9

HEATER STAGECONTACTOR(S)24VAC, 12VA

MAX/COILHOT

12VA MAX

W (HOT)

VALVE

PROP.WATER

24VAC

TB3-5

6.

TB3-6

OPTI NAL FIELD INSTUX TEMP SENSO

PROPORTIONAL WATER VALVE

OPTIONAL FIELD INSTALLEDON-OFF WATER VALVE

TO J8

TO J9ON - OFF

12VA MAX

WATER VALVE24 VAC

S

1/4" quick connect required for all field connections

Zone sensor terminals 4 and 5 require shielded twisted pair wiring for communications jack equipped zone sensoroption. Zone sensor with LCD requires a sixth wire with 24 V from a transformer.

No additional wiring required for night setback override (on/cancel).

The optional binary input connects between TB4-1 (BIP and 24 VAC (hot) from transformer. the binary input can bereconfigured as an occupancy input via the communications interface.

As shipped, the aux input is configured as an aux temp input. The aux input can be reconfiguredas a CO2 sensor input via the communications interface.

S terminal not to be used with VariTrane.

(TB1-2) GND

NOT CONNECTED


Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

GR (NC CONTACT)

BK (RETURN)

O (COMMON)

5.


(TB3-5) A/CO2

(TB1-1) 24V

CO2SENSOR

OUT

24V

6.


8.

(Normal Operation: Cooling with Electric Reheat Capability)DD01 – Cooling OnlyDD04 – Cooling With Staged On/Off Electric HeatDD05 – Cooling With Pulse-Width Modulation Electric Heat


C 16

Controls—DDC

VAV-PRC008-EN

ControlDrawings

(Normal Operation: Cooling with Hot Water Reheat)DD02 – Cooling with Normally-Closed On/Off Hot Water Valve (Normally-Open Outputs)DD03 – Cooling with Proportional Hot Water ValveDD07 – Cooling with Normally-Open On/Off Hot Water Valve (Normally-Closed Outputs)


TB1-

2

TB1-

1

Y BL

For Use With VariTrane Fan-Powered Terminals

STANDARDTRANSFORMER

PROVIDED50VA

ON – OFFWATER VALVE

24 VAC12VA MAX

ZONE SENSORW/ COMM. JACKREMOTE MTD.

ZONE SENSORREMOTE MTD.



OPTIONAL FIELD INSTALLEDPROPORTIONAL WATER VALVE

OPTIONAL FIELD INSTALLEDAUX TEMP SENSOR

DDC\UCM

CONTROL BOX


7.

6.

5.

4.

3.

2.

1.

PRESSURETRANSDUCER

VOUT

+

_

7.

4.

12

TB3–5 TB3–6

TB3–2 TB3–1

TB3–2TB3–1

TB3–5TB3–6

TB3–3

R–FAN

BR

Y

24 VAC

24VGNDBIPACT

J1

J3

GNDZONE A/CO2 GND

ADDRESSSWITCH D.D.C. \ U.C.M.

CONTROL BOARD

GRNYEL

––– +++

PROP.WATERVALVE24VAC

12VA MAX

TO J8

TO J9

TO J10

W (HOT)

BK (CLOSE)

R (OPEN)

4.3.

125 4 3

DAMPERACTUATOR

WIRING


NOTES:

Factory WiringField WiringOptional or Alternate Wiring

1.4" quick connect required for all field connections.

Zone sensor terminals 4 & 5 require shielded twisted pair wiring for communications jack equipped zone sensor options.Zone sensor with LCD requires a sixth wire with 24 V from a transformer.

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

The optional binary input connects between TB–1 (BIP) AND 24 VAC (HOT) from transformer. The binary input can bereconfigured as an occupancy input via the communications interface.

As shipped, the Aux Input is configured as an Auxillary Temporary Input. The Aux. Input can be reconfigured as a CO2 sensor input via the communications interface.

S Terminal not to be used with VariTrane.

Connect shielding from each communication cable together and insulate.

J11

J10

J9 J7 J8

J11

J11

J11

TB2–

1

TB1–

1

TB1–

2

TB4–

1

J11

1

1

TB2–

2

TB2–

3

TB2–

5

TB2–

6

TB2–

4

TB3–

1

TB3–

2

TB3–

3

TB3–

5

TB3–

6

SET

R

BK

G

W–H

OT

W–H

OT

G–O

PE

N

R–C

LOS

E

PR

ES

S


(TB3-5) A/CO2

(TB1-1) 24V

CO2SENSOR

24V

6.

(TB1-2) GND

NOT CONNECTED


Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

GR (NC CONTACT)

BK (RETURN)

O (COMMON)

5.

8.

8.

ININ OU

T

OU

T

S

Controls—DDC

VAV-PRC008-EN C 17

ControlDrawings


BL

A/CO2

OPTI

TB3-6

+++

ADDRESSSWITCH

J10

J11

DAMPER

WIRINGACTUATOR

Y


R

W-H

OT

G-O

PE

N

W-H

OT

J8J7J9

ACT

J1

R-C

LO

SE

Y

BIP

TB

4-11

TB

1-2

TB

1-1

24VGND

INT

B2

-2

TB

2-1

IN

YEL

- -

TB

2-4

TB

2-3

OU

T

OU

T

-

TB

2-5

TB

2-6

ZONE

TB

3-1GRN

SETGND

TB

3-3

TB

3-2

TB3-5

6.

REMOTE MTD.

TB3-1

INSTALLED ZONE SENSOR

24V

BL

MOTOR24V

RELAY

VOUT

YBL

2

BL

CO

OL

1

J3

R

1

BKG -

R +

NEUT.

RED

4

Y

8.

RED

ECMBOARD3

TB3-2TB2-5TB2-6BK

3.

W/ COMM. JACKZONE SENSOR

REMOTE MTD.

OPTIONAL FIELD

TB3-3

45 3 2 1

4.

ZONE SENSOR

TB3-2

2

TB3-1

1

INSTALLED ZONE SENSOR


PRESSURETRANSDUCER

GND

TB

3-6

TB

3-5 7.S

OPTIONAL FIELD

4.

MOTORECMTO

W BK G R

O

2ND STG.

1ST STG.TO J10

TO J9

TO J8 MAX/COIL24VAC, 12VA

CONTACTOR(S)HEATER STAGE

HOT

ELECTRIC HEATEROPTIONAL FIELD INSTALLED

ON-OFF WATER VALVEOPTIONAL FIELD INSTALLED

R (OPEN)

BK (CLOSE)

OPTIONAL FIELD INSTALLEDPROPORTIONAL WATER VALVE

TO J9

TO J8

TO J10

TO J9

TO J8

12VA MAX24VACVALVEWATERPROP.W (HOT)

24 VACWATER VALVE

12VA MAX

ON - OFF

(Normal Operation: Cooling with Reheat Capability)DD01 – Cooling OnlyDD02 – Cooling with Normally-Closed On/Off Hot Water Vavle (Normally-Open Outputs)DD03 – Cooling with Proportional Hot Water ValveDD04 – Cooling with Staged On/Off Electric HeatDD05 – Cooling with Pulse-Width Modulation Electric HeatDD07 – Cooling with Normally-Closed On/Off Hot Water Valve (Normally-Closed Outputs)

For Use With ECM VariTrane Fan-Powered Terminals

TB

1-2

Y

TB

1-1

BL

50VAPROVIDED

STANDARDTRANSFORMER

OPTIONAL OR ALTERNATE WIRING

NOTES:

1.FIELD WIRINGFACTORY WIRING

3.

2.

4.

6.

5.

7.

1/4" quick connect required for all field connections

Zone sensor terminals 4 and 5 require shielded twisted pair wiring for communications jack equipped zone sensoroption. Zone sensor with LCD requires a sixth wire with 24 V from a transformer.

No additional wiring required for night setback override (on/cancel).

The optional binary input connects between TB4-1 (BIP and 24 VAC (hot) from transformer. the binary input can bereconfigured as an occupancy input via the communications interface.

As shipped, the aux input is configured as an aux temp input. The aux input can be reconfiguredas a CO2 sensor input via the communications interface.

S terminal not to be used with VariTrane.

Fan cfm can be adjusted from its min. cfm to its max. cfm via the ECM control board dialswitches. The switches set the percentage flow.

8.

(TB1-2) GND

NOT CONNECTED


Y

(TB1-1) 24VAC

(TB1-1) 24VAC

(TB4-1) BIP

R (HOT)

BK (RETURN)

O (COMMON)

5.


(TB3-6) GND

(TB3-5) A/CO2

(TB1-1) 24V

CO2SENSOR

OUT

6.

Connect shielding from each communication cable together and insulate.9.

9.

SHIELDEDTWISTED PAIR

COMMUNICATIONSWIRING

C 18

Controls—DDC

VAV-PRC008-EN

Direct Digital Controller—Unit Control Module

The Trane direct digital controller UnitControl Module (DDC-UCM) is amicroprocessor-based terminal unitwith non-volatile memory whichprovides accurate airflow and roomtemperature control of Trane VAV airterminal units. The UCM can operate ina pressure-independent or a pressure-dependent mode and uses aproportional plus integral controlalgorithm. The controller monitors zonetemperature setpoints, zonetemperature and its rate of change andvalve airflow (via flow ring differentialpressure). The controller also acceptsan auxiliary duct temperature sensorinput or a suupply air temperaturevalue from Tracer Summit. Stagedelectric heat, pulse width modulatedelectric heat, proportional hot waterheat or on/off hot water heat controlare provided when required. Thecontrol board operates using24-VAC power. The Trane DDC-UCM isa member of the Trane IntegratedComfort™ systems (ICS) family ofproducts. When used with a TraneTracer Summit™ building managementcontroller or other Trane controllers,zone grouping and unit diagnosticinformation can be obtained. Also partof ICS is the factory-commissioning ofparameters specified by the engineer(see "Factory-Installed vs. Factory-Commissioned" in the Features andBenefits section for more details).

SPECIFICATIONS

Supply voltage:24 VAC, 50/60 Hz

Maximum VA load:No heat or fan:12 VA (Board, Transducer, Zone Sensor,and Actuator)

Note: If using field-installed heat,24 VAC transformer should be sizedfor additional load.

Output ratings:Actuator Output: 24 VAC at 12 VA1st Stage Reheat: 24 VAC at 12 VA2nd Stage Reheat: 24 VAC at 12 VA3rd Stage Reheat: 24 VAC at 12 VA

Binary input:24 VAC

Auxiliary input:Can be configured for an optional 2–10VDC CO2 sensor, or auxiliarytemperature 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

Accessories

Physical dimensions:Width: 5.5" (139.7 mm)Length: 2.8" (69.85 mm)Height: 1.8" (44.45 mm)

Connections:1/4" (6.35 mm) Stab Connections

Communications:RS-485; Stranded wire, twisted pair,shielded, copper conductor only,18–20 awg

Fan control:Series fan: On unless unoccupied

and min. flow has beenreleased.

Parallel fan: On when zonetemperature is less thanheating setpoint plus fanoffset. Off when zonetemperature is more thanheating setpoint plus fanoffset plus 0.5°F (0.28°C).

Heat staging:Staged electric or hot waterproportional or pulse-widthmodulation

Controls—DDC

VAV-PRC008-EN C 19

The DDC zone sensor is used inconjunction with the Trane direct digitalcontroller to sense the spacetemperature and to allow for useradjustment of the zone setpoint.Models with external zone setpointadjustments, plug-in communicationsjack and occupied mode overridepushbuttons are available.

SPECIFICATIONS

Thermistor resistance rating:10,000 Ohms at 77°F (25°C)

Setpoint resistance rating:Setpoint potentiometer is calibrated toproduce 500 Ohms at a setting of 70°F(21.11°C)

Electrical connections:Terminal Block – Pressure ConnectionsCommunications Jack – WE-616


DDC Zone Sensor

Accessories

Wireless Receiver/Wireless Zone Sensor

The wireless zone sensor systemeliminates the wiring problemsassociated with VAV temperaturesensors. It provides the flexibility tomove zone sensors after the occupantshave revised the space floor planlayout. The zone sensor houses thespace temperature sensor, localsetpoint adjustment thumbwheel,OCCUPIED/UNOCCUPIED button,battery life, signal strength indicators,and spread spectrum transmitter. Thespread spectrum receiver/translatorcan be field or factory installed andfunctions as a communicationtranslator between spread spectrumradio communications and the VAVcommunications link. For furtherinformation, refer to the wireless zonesensor product catalog at http://www.trane.com/commercial/equipment/PDF/42/BASPRC023_032306.pdf.

SPECIFICATIONS

Power requirements:Receiver:24 V nominal AC/DC ± 10% < 1VA

Zone Sensor:(2) AA lithium batteries

Sensor Operating environments:32 to 122°F, (0 to 50°C)5 to 95%RH, Non-condensing

Receiver Operating environments:-40 to 158°F, (-40 to 70°C)5 to 95%RH, Non-condensing

Storage environment—sensor/receiver:-40 to 185°F, (-40 to 85°C)5 to 95%RH, Non-condensing

Mounting:Receiver:Suitable for mounting above or belowceiling grid. Requires 24 V power.Factory installed receiver comesmounted to the VAV unit with powerprovided by associated unit controllertransformer. Field installed optionprovided with associated wireharnessfor similar power and communicationconnection.

Sensor:Mounts to a 2x4 handi-box or directlyto the wall by attaching the backplateand then snapping the sensor bodyinto place.

Dimensions:Receiver/TranslatorEnclosure: PlasticHeight: 4.75" (120.6 mm)Width: 2.90" (73.5 mm)Depth: 1.08" (27.5 mm)

Sensor/TransmitterEnclosure: PlasticHeight: 4.78" (121.4 mm)Width: 2.90" (73.5 mm)Depth: 1.08" (27.5 mm)

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VAV-PRC008-EN

Accessories

DDC Zone Sensor with LCD

The DDC zone sensor with LCD has thelook and functionality of the standardTrane DDC zone sensor but has a LCDdisplay. The sensor includes setpointadjustment, the display of the ambienttemperature, a communication jack,and occupied mode overridepushbuttons. Also, it can be configuredin the field for either a Fahrenheit orCelsius display, a continuous display ofthe setpoint and the offset of displayedtemperatures.

SPECIFICATIONS

Thermistor resistance rating:10,000 Ohms at 77oF (25oC)

Setpoint resistance rating:Setpoint potentiometer is calibrated toproduce 500 Ohms at a setting of 70oF(21.11oC)

Temperature range:Displays 40 to 99oF (5 to 35oC)With Setpoints 50 to 90oF (10 to 32oC)

Electrical connections:Terminal Block – Pressure ConnectionsCommunication Jack – WE – 6164 VA maximum power input.


The wall- and duct-mounted carbon dioxide (CO2) sensors are designed for use withTrane DDC/UCM control systems. Installation is made simple by attachment directlyto the DDC/ UCM controller. This allows the existing communication link to be usedto send CO2 data to the higher-level Trane control system.

Wall-mounted sensors can monitor individual zones, and the duct-mounted sensoris ideal for monitoring return air of a given unit. Long-term stability and reliabilityare assured with advanced silicon based Non-Dispersive Infrared(NDIR) technology.

When connected to a building automation system with the appropriate ventilationequipment, the Trane CO2 sensors measure and record carbon dioxide in parts-per-million (ppm) in occupied building spaces. These carbon dioxide measurements aretypically used to identify under-ventilated building zones and to override outdoorairflow beyond design ventilation rates if the CO2 exceeds acceptable levels.

Duct CO2 SensorCO

2 Wall Sensor

SPECIFICATIONS

Measuring Range0–2000 parts per million (ppm)

Accuracy at 77°F (25°C)< ± (40 ppm CO2 + 3% of reading)(Wall only)

< ± (30 ppm CO2 + 3% of reading)

Recommended calibration interval5 years

Response time1 minute (0–63%)

Operating Temperature59 to 95°F (15 to 35°C) (Wall only)

23 to 113°F (-5 to 45°C)

Storage Temperature-4 to 158°F (-20 to 70°C)

Humidity Range0–85% relative humidity (RH)

Output Signal (jumper selectable)4-20 mA, 0–20 mA,0–10 VDC

Resolution of analog outputs10 ppm CO2

Power SupplyNominal 24 VAC

Power Consumption<5 VA

Housing MaterialABS plastic

Dimensions4 1/4" x 3 1/8" x 1 7/16" (Wall only)(108 mm x 80 mm x 36 mm) (Wall only)

3 1/8" x 3 1/8" x 7 ¾"(80 mm x 80 mm x 200 mm)

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VAV-PRC008-EN C 21

Accessories

The auxiliary temperature sensor is usedin conjunction with the Trane DDCcontroller to sense duct temperature.When the DDC controller is used witha Building Automation System, thesensor temperature is reported as statusonly. When the DDC controller is used ina stand-alone configuration, the sensordetermines the control action of the UCMin a heat/cool changeover system.

SPECIFICATIONSSensing Element:Thermistor 10,000 Ohms @ 77°F (25°C)Operating environment:-4 to 221°F (-20 to 105°C), 5%-95%RHNon-CondensingWiring Connection:8 ft 18 awgSleeving for wire leads is acyrlic #5 awggrade C rated @ 155 CProbe Dimensions:3.4" long x 5/16" diameter(86 mm x 7.9 mm diameter)Mounting:In any position on duct.Mount the sensor to the duct using#10 x ¾" (19.05 mm) sheet metal screws.

Auxiliary Temperature SensorZone Occupancy Sensor

The zone occupancy sensor is ideal forspaces with intermittent occupancy. Itis connected to the Trane DDC UCMand allows the zone to shift tounoccupied setpoints for energysavings when movement is notdetected in the space.

The zone occupancy sensor has amulti-cell, multi-tier lens with amaximum field of view of 360°. Themaximum coverage area of the sensoris 1200 square feet with a maximumradius of 22 feet from the sensor whenmounted at 8 feet above the floor.

Sensor ships with 30-minute timedelay pre-set from the factory. Timedelay and sensitivity can be field-adjusted.

SPECIFICATIONS

Power Supply24 VAC or 24 VDC, ± 10%

Maximum VA Load0.88 VA @ 24 VAC,0.72 VA @ 24 VDC

Isolated Relay Rating1 A @ 24 VAC or 24 VDC

Operating Temperature32 to 131°F (0 to 55°C)

Storage Temperature-22 to 176°F (-30 to 80°C)

Humidity Range0 to 95% non-condensing

Effective Coverage Area1200 sq ft

Effective Coverage Radius22 feet

Housing MaterialABS Plastic

Dimensions3.3" dia. x 2.2" deep (85 mm x 56 mm).Protrudes 0.36" (9 mm) from ceilingwhen installed.

Control Relay

The control relay is an output deviceused to provide on/off control ofelectrical loads. The SPST relay alsowill isolate the electrical load from thedirect digital controller.

SPECIFICATIONS

Coil rating:24 VAC, 50/60 Hz, pull in at 85%,4 VA inrush, 3 VA sealed, Class Binsulation

Contact rating:120 VAC, 12 FLA , 60 LRA, 18AResistive Pilot Duty – 125 VA/3A

277 VAC, 7 FLA, 42 LRA, 18A ResistivePilot Duty – 277 VA/3A

347 VAC, 25 FLA, 50 LRA, 30A Resistive

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Controls—DDC

VAV-PRC008-EN

Accessories

Two-Position Water Valve

Two-position hot water valves are usedwith Trane DDC/UCM controls andanalog electronic controls. Valveactuation is by a hysteresissynchronous motor.

All valves are field-installed andconvertible from three-way to two-wayby means of an included cap.

SPECIFICATIONS

Valve designBody: BrassCover: AluminumCase: Stainless SteelStem: Brass, Hard

Chrome Plate“O” Ring Seals: VitonOperating Paddle: Buna N

Valve body ratings:UL 873 Listed File E27743

Plenum Rated CSA C22.2 No. 139Certified, File LR85083, Class 3221 01

Temperature limits:200°F (93.33°C) Fluid104°F (40°C) Ambient

Maximum Operating Pressure:300 psi (2069 kPa)

Electrical rating:Motor Voltage – 24 VAC, 50/60 Hz

Power Consumption – 7.0 VA of 24 VAC

Valve offerings:All valves are spring returned.1.17 Cv – ½" (12.7 mm) O.D. NPT3.0 Cv – ¾" (19.1 mm) O.D. NPT6.4 Cv – 1" (25.4 mm) O.D. NPT

Cv offered (Close-off Pressure):1.17 30 psi (207 kPa)3.0 14.5 psi (100 kPa)6.4 9 psi (62 kPa)

Proportional Water Valve

The proportional water valve is used toprovide accurate control of a hot waterheating coil to help maintain a zonetemperature setpoint. The valve plugis an equal percentage design andcomes available in four different flowcapacities for proper controllability. Thevalves are field-adjustable for use as atwo- or three-way configuration. Thevalves ship in a two-way configurationwith a cap over the bottom port.Conversion to three-way operation isaccomplished by removing the plugfrom the "B" port. The valve actuatorcontains a three-wire synchronousmotor. The direct digital controller usesa time-based signal to drive the motorto its proper position. When power isremoved from the valve, it remains inits last controlled position.

SPECIFICATIONS

Valve design:Equal percentage plug designed forwater or water with up to 50% glycolor ethylene

Valve body ratings:ANSI B16.15, Class 250 pressure/temperature

ANSI B16.104, Class IV control valve shutoff leakage standard

ISA S75.11 flow characteristic standard

Temperature limits:34–203°F (1–95°C) Fluid32–150°F (0–66°C) Ambient

Maximum operating pressure:345 psi at 281°F (2379 kPa at 138°C)

Maximum actuator close-off pressure:55 psi (379 kPa)

Electrical rating:Motor Voltage – 24 VAC, 50/60 Hz

Power Consumption – 6.0 VA at 24 VAC

Valve offerings:All valves are proportional Tri-stateControl with ½" (12.7 mm) O.D. NPTconnections with the exception of7.3 Cv, which is ¾" (19.1 mm).

Cv offered:0.72.23.86.6

Controls—DDC

VAV-PRC008-EN C 23

Accessories

The transformer converts primarypower supply voltages to the voltagerequired by the direct digital controllerand analog. The transformer alsoserves to isolate the controller fromother controllers which may beconnected to the same power source.

SPECIFICATIONS

Primary voltage:120 VAC208 VAC240 VAC277 VAC347 VAC480 VAC575 VAC

Secondary voltage:24 VAC

Power rating:50 VA

Physical dimensions:For all voltages:

The transformers will be no largerthan the following dimensions:Width: 2.63" (66.7 mm)Length: 2.50" (63.5 mm)Height: 2.30" (58.4 mm)

TransformersDifferential PressureTransducer

The differential pressure transducer isused in conjunction with the Tranedirect digital controller and analogelectronic controller. The pressuretransducer measures the differencebetween the high-pressure and low-pressure ports of the Trane flow ring.The transducer is self-adjusting tochanges in environmental temperatureand humidity.

SPECIFICATIONS

Input pressure range:0.0 to 5.0 in. wg(Maximum input pressure 5 psig )

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

Electrical connections:Vin = 5.0 VDC nominal(4.75 to 5.25 VDC acceptable)Current Draw = 5 mA maximumNull Voltage = 0.250 VDC ± 0.06 VDCSpan = 3.75 VDC ± 0.08 VDCNote:Null and Span are ratiometric with Vin


Pressure connections:1/8" (3.175 mm) barbed tubingconnections

C 24

Controls—DDC

VAV-PRC008-EN

Trane Actuator – 90 Second Drive Time

This actuator is used with DDC controlsand retrofit kits. It is available with a 3-wire floating-point control device. It is adirect-coupled over the shaft(minimum shaft length of 2.1"),enabling it to be mounted directly tothe damper shaft without the need forconnecting linkage. The actuator has anexternal manual gear release to allowmanual positioning of the damperwhen the actuator is not powered. Theactuatoris Underwriters Laboratories Standard873 and Canadian StandardsAssociation Class 3221 02 certified asmeeting correct safety requirementsand recognized industry standards.

SPECIFICATIONS

Actuator design:3-wire, 24-AC floating-point control.Non-spring return.

Actuator housing:Housing type-NEMA 1

Rotation range:90° clockwise or counterclockwise

Electrical rating:Power Supply –24 VAC (20 to 30 VAC)at 50/60 Hz

Power Consumption – 1.8 VAmaximum, Class 2

Electrical connection:No. 6-32 screw terminals (For DD00and FM01 control options and retrofitkits).

6-pin female connector harness forTrane UCM (for Trane DDC controlsexcept retrofit kits)

Manual override:External clutch release lever

Shaft requirement:½" round

2.1" length

Humidity:5% to 95% RH, Non-Condensing

Temperature rating:Ambient operating: 32 to 125°F(0 to 52°C)

Shipping and storage: -20 to 130°F(-29 to 66°C)

Torque:Running: 35 in.-lb (4 N-m)

Breakaway: 35 in.-lb (4 N-m) minimum

Stall: 60 in.-lb (4.5 N-m) minimum

Accessories

Trane Spring Return Actuator

This actuator is used with DDC controlsand is a floating-point control device. It isdirect-coupled over the shaft (minimumshaft length of 2.1"), enabling it to bemounted directly to the damper shaftwithout the need for connecting linkage.The actuator is UnderwritersLaboratories Standard 60730 andCanadian Standards Association C22.2No. 24-93 certified as meeting correctsafety requirements and recognizedindustry standards.SPECIFICATIONS

Actuator design:24-VAC, floating-point control. SpringreturnActuator housing:Housing Type-NEMA IP54Rotation range:Adjustable from 0° to 90° at 5° intervals,clockwise or counterclockwiseElectrical rating:Power Supply – 24 VAC (19.2 to 28.8 VAC)at 50/60 HzPower Consumption – 4VA holding, 5VArunning maximum, Class 2Electrical connection:6-pin female connector for Trane UCM(for Trane DDC controls)Manual override:Manual override key providedShaft requirement:¼" to ¾" round2.1" lengthHumidity:95% RH, Non-CondensingTemperature rating:Ambient operating: 32 to 130°F(0 to 54°C)Shipping and storage: -40 to 158°F(-40 to 70°C)Torque:62 in.-lbs (7N-m)

Controls—DDC

VAV-PRC008-EN C 25

Retrofit Kit Actuator

Accessories

This actuator is available with the DDCRetrofit Kit and is a 3-terminal, floating-point control device. It is direct-coupledover the damper shaft so there is noneed for connecting linkage. Theactuator has an external manual gearrelease to allow manual positioning ofthe damper when the actuator is notpowered. A three-foot plenum-ratedcable with bare ends will be sentseparately. The actuator is listed underUnderwriters Laboratories Standard873, CSA 22.2 No. 24 certified, and CEmanufactured per Quality StandardSO9001.

SPECIFICATIONS

Actuator design:on-off/floating-point

Actuator housing:Housing Type-NEMA type 1

Housing Material Rating- UL 94-5V

Direction of rotation:Reverse wires terminals 2 and 3

Angle of rotation:Max 95º, adjustable with mechanicalstops

Electrical rating:Power Supply – 24 VAC ± 20% 50/60 Hz24 VDC ± 10%

Power Consumption – 2 W

Transformer Sizing – 3 VA (Class 2power source)

Manual override:External push button

Humidity:5% to 95% RH, Non-Condensing

Ambient temperature:-22 to 122°F (-30C to 50°C)

Storage environment:-40 to 176°F (-40 to 80°C)

Torque:Min 35 in.-lb (4Nm), Independentof load

Running time:95 sec. for 0 to 35 in-lb

Noise rating:Less than 35 dB (A)

Weight: 1.2 lbs (0.55 kg)

VariTrane DDC Retrofit Kit

The retrofit kit provides the systemadvantages of VariTrane DDC controlsto building owners for existingsystems. The kit can be applied whenconverting from pneumatic or analogcontrolled systems to a DDC controlledsystem. The kit may be used onexisting single-duct units with hotwater and electric reheat (three stages),dual-duct units, and all fan-poweredunits (both series and parallel) with hotwater and electric reheat (two stages).

A VariTrane DDC-UCM, an electronicdifferential pressure transducer, and asix-pin connector with wiring for anactuator, make up the assembly of theretrofit kit. All are housed inside ametal enclosure. For maximumflexibility, the kit is available with oneof two actuators or without an actuator.If a kit is ordered without an actuator,ensure the actuator used has 24VACthree-wire floating control. Otheraccessories are available with theretrofit kit which include zone sensors,flow bars (used with units without aflow sensor), power transformers,control relays, and E/P solenoid valves.

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