Trane VariTrac Dampers Installation Manual

Installation ManualVariTrac™Central Control PanelJune 2002 VAV-SVN03A-EN

VAV-SVN03A-EN4'HFODUDWLRQRI&RQIRUPLW\Manufacturer’s Name: Manufacturer’s Address: Trane 4833 White Bear Parkway Saint Paul, Minnesota 551

VAV-SVN03A-EN 5VariTrac Changeover-BypassSystemOverviewVariTrac Changeover-bypass VAV is a comfort system solution designed forlight commercial applic

VAV-SVN03A-EN6• rectangular damper sizes are 8 x 12, 8 x 14, 8 x 16, 10 x 16, 10 x 20, and14 x 16 inches. The damper consists of a 16 gage galvanized

VAV-SVN03A-EN 7• sensor with digital display, adjustable setpoint, night setpoint overridebutton, cancel button, and communications jackCO2 SensorA CO

VAV-SVN03A-EN8Figure 2: VariTrac Changeover Bypass System ConfigurationLegendCommunications Link (2 cond, Level 4 comm wire)24 VacSensor wiringVoyager

VAV-SVN03A-EN 9SpecificationsVariTrac Central Control PanelstnemeriuqeRrewoPAV03,esahpelgnis,zH06,caV03-02remrofsnart2ssalCmuminimderiuqertnemnorivnEg

VAV-SVN03A-EN10Operator DisplaystnemeriuqeRrewoPybderewopsiyalpsidrotarepoehT.PCCehttnemnorivnEgnitarepOF°221otF°23-non,ytidimuhevitaler%09ot01gnisned

VAV-SVN03A-EN 11Communicating Sensor/Bypass ControlAssemblystnemeriuqeRrewoP51,esahpelgnis,zH06,caV03ot02remrofsnart2ssalCmuminimAVderiuqertnemnorivnE

VAV-SVN03A-EN12Table 1: Communication Link Wire SpecificationsnoitacificepSdetaRPMCmunelP4leveL,dedleihS,srotcudnoCGWA22.rp1:dnoCforebmuNeulbthgil:rol

VAV-SVN03A-EN 13Getting StartedFamiliarize yourself with the system components and preview theinstallation procedures before installing and configurin

VAV-SVN03A-ENVariTrac Central Control Panel Installation ManualThis manual and the information in it are the property of American StandardInc. and sha

VAV-SVN03A-EN14Mount the Wiring BaseFigure 3: Termination module conduit access and mounting holesTermination boardConduit access(three places)Two hol

VAV-SVN03A-EN 15The VariTrac Central Control Panel should be easily accessible for makingwiring connections and for servicing. Provide two inches of c

VAV-SVN03A-EN16Secure Termination Module to Conduit Box1 Remove the screws from the conduit box.2 Line up the conduit box screw holes on the terminati

VAV-SVN03A-EN 17Wire AC PowerCCP Field WiringField wiring to the VariTrac Central Control Panel includes:• AC power wiring• binary input wiring• commu

VAV-SVN03A-EN18AC Power WiringA dedicated 24 Vac, 30 VA Class 2 transformer is required to power theVariTrac Central Control Panel.The VariTrac Centra

VAV-SVN03A-EN 19Occupied/Unoccupied Input WiringThis input closes the connection between TB2-8 and TB2-9. This is most likelyfrom an external time clo

VAV-SVN03A-EN20Figure 7: Binary Output Wiring for Optional Relay Board123456789101112131415NOT USED NC NO AUX W2/O W1 Y2 Y1

VAV-SVN03A-EN 21Bypass Damper WiringThe interconnect cable is pre-wired to the bypass damper and may belengthened if necessary.IMPORTANTMounting screw

VAV-SVN03A-EN22If the supply duct branches out at the riser, install the control in the largestsupply duct.A two-inch hole is required to insert the t

VAV-SVN03A-EN 23Install the VariTrac DampersA sketch of basic damper installation is shown in Figure 10. The damper maybe connected with hard duct or

VAV-SVN03A-EN iContentsAbout This Manual ... 1Contents ...

VAV-SVN03A-EN24Figure 11: Proper Damper Mounting PositionsConnect UCM WiringConnect the power to terminals TB1-1 (24V) and TB1-2 (ground). 24 Vac isre

VAV-SVN03A-EN 25Figure 12: UCM WiringSet the UCM DIP SwitchesEach device connected to the VariTrac Central Control Panel must a uniqueaddress. No two

VAV-SVN03A-EN26Table 2: DIP Switch Settings for UCM Damper AddressesDIP Switch SettingsAddresses 25-32 used for Delivered VAV onlyUCMNumber123465ONONO

VAV-SVN03A-EN 27outputs of the UCM controlling the primary damper by using the BYPSdamper cable assembly shipped with the BYPS damper.Refer to diagram

VAV-SVN03A-EN28Install the Zone Temperature SensorsFive types of zone temperature sensors are available. The sensors areshown below in Figure 14:• se

VAV-SVN03A-EN 29• areas near heat sources like equipment (appliances, computers, copiers,etc.) or concealed pipes or chimneys• dead spots behind doors

VAV-SVN03A-EN302 Using two #6-32 screws, fasten the base to the junction box’s threadedmounting holes.3 Connect the control wires to the proper termin

VAV-SVN03A-EN 312. 3 wires are required for sensor connection. 2 wires are required for 24 Vac powerconnection. For wire lengths less than 75 feet, an

VAV-SVN03A-EN32Communication Link WiringThe VariTrac Central Control Panel communication link (TB2-10, 11, and 12)connects the CCP, UCM dampers, commu

VAV-SVN03A-EN 33Figure 16: Daisy Chain Configuration for Communication Link WiringUCM DampersCentral Control Panel VariTracUCM DampersUCM DampersUCM

VAV-SVN03A-ENiiUCM Damper ... 10Communicating Sensor/

VAV-SVN03A-EN34Figure 17: UCM Communication Link Wiring123456789101112131415Splice2Termination Board TB2 LegendTwisted pair, shielded wireper Trane sp

VAV-SVN03A-EN 35Figure 18: Voyager Communication Link WiringVoyager (UPC)Unit Control PanelComm Termination Details for Voyager RTU(TCI-V)12Figure Not

VAV-SVN03A-EN36Figure 19: Precedent Communication Link WiringVariTrac Communications Interface (Comm4)Comm Termination Details for Voyager RTUPreceden

VAV-SVN03A-EN 37Figure 20: Mounting Main ModuleTermination moduleMain moduleAlignment pin(four places)IMPORTANTDo not use excessive force when mountin

VAV-SVN03A-EN38• Align the three tabs on the bottom of the display with the slots in thebottom of the main module. (Figure 21).• Starting with the cen

VAV-SVN03A-EN 39Figure 22: Modular Adapters, Cable, and Connections for ExternalModemsTo modem serial portConnect RJ-12 to25-pin maleadapterRJ-12 port

VAV-SVN03A-EN40Figure 23: Typical VariTrac Central Control Panel to PC serial port connec-tionsConnect RJ-12 to9-pin femaleadapterTo PC serial portRJ-

VAV-SVN03A-EN 41Installation ChecklistComplete this checklist as the VariTrac Central Control Panel is installed toverify that all recommended procedu

VAV-SVN03A-EN42VariTrac Damperso UCM dampers mounted and secure according to recommendations.Zone Temperature Sensorso Sensors are properly mounted a

VAV-SVN03A-EN 43System Start-Upand CheckoutPre-power-Up CheckoutCentral Control Panel• Measure the supply voltage to the CCP TB2-1 and TB2-2. The sup

VAV-SVN03A-EN iiiConnecting PC with VariTrac Software to CCP ... 39Installation Checklist...

VAV-SVN03A-EN44• Verify that the proper unit address is set on each UCM.Occupied ModeAfter the system is completely wired and installed it is ready fo

VAV-SVN03A-EN 45Green LEDNOnoitarepOlamroNFFOdraobevitcefedro,rewopcaV42oNGNIKNILBdraoBevitcefeDYellow LEDNOytiralopknilnoitacinummocdesreveRFFOytivit

VAV-SVN03A-EN46System Start-Up and Checkout

VAV-SVN03A-EN 47Tests andTroubleshootingDisplayed FailuresStatic Sensor Calibration FailureIf static sensor calibration fails, the CCP uses 0.50 inch

VAV-SVN03A-EN48Zone Sensor FailureIf the zone sensor fails, the damper drives to minimum position, and its voteis excluded.Zone Setpoint FailureIf a s

VAV-SVN03A-EN 49Table 4: Temperature Resistance TablepmeTleehwbmuhTecnatsiseRrosneSecnatsiseR03-02-01-00102030405---------000142000071000121000880004

VAV-SVN03A-EN50UCM Local Heat CheckoutTurn the adjustable zone sensor to full heating, or adjust the temperaturesetpoints at the CCP.IMPORTANTModel DC

VAV-SVN03A-EN 51Static Pressure Sensor Input TestIn order to perform this test a voltage between 0.25 Vdc and 0.7 Vdc must bepresent at J3 pins 2 and

VAV-SVN03A-EN52Tests and Troubleshooting

VAV-SVN03A-EN 53Delivered VAV SystemOverviewWhat is Delivered VAV?Delivered VAV is a small tonnage VAV system made up of three Trane prod-uct families

VAV-SVN03A-ENivDelivered VAV System ... 53Overview ...

VAV-SVN03A-EN54Figure 24: Delivered VAV System ConfigurationLegendCommunications Link (2 cond, Level 4 comm wire)24 VacSensor wiring24 VacTransformerV

VAV-SVN03A-EN 55Central Control PanelThe VariTrac Central Control Panel is the central source of communicationsand decision making between the individ

VAV-SVN03A-EN56The local series fan within the terminal unit operates whenever the unit is inthe occupied mode. The volume of air delivered to the VAV

VAV-SVN03A-EN 57Getting StartedFamiliarize yourself with the system components and preview the installa-tion procedures before installing and configur

VAV-SVN03A-EN58At the VariTrac Central Control Panel, the communication link wires must beconnected to Terminals TB2-10 (+) and TB2-11 (−). Refer

VAV-SVN03A-EN 59Figure 25: Daisy Chain Configuration for Communication Link WiringVAV Terminal UnitVAV Terminal UnitVAV Terminal UnitVAV Terminal Unit

VAV-SVN03A-EN60Figure 26: UCM Communication Link Wiring123456789101112131415Splice2Termination Board TB2 LegendTwisted pair, shielded wireper Trane sp

VAV-SVN03A-EN 61Figure 27: Voyager Communication Link WiringVoyager (UPC)Unit Control PanelComm Termination Details for Voyager RTU(TCI-V)12Figure Not

VAV-SVN03A-EN62Getting Started

VAV-SVN03A-EN 63Installation ChecklistComplete this checklist as the VariTrac Central Control Panel is installed toverify that all recommended procedu

VAV-SVN03A-EN 1About This ManualContentsThis manual describes the steps required to install and configure VariTrac™Changeover Bypass Zoning and Deliv

VAV-SVN03A-EN64o Confirm voltage present between 20 Vac and 28 Vac.o Ensure that the sensor is properly terminated.o If optional local heat is being u

Literature Order Number VAV-SVN03A-ENFile Number SV-AH-VAV-000-SVN03A-EN-0602Supersedes VADA-IN-2Stocking Location La CrosseTrane has a policy of cont

VAV-SVN03A-EN2Naming ConventionsThe following is a list of naming conventions used in this manual:• CCP: Refers to the system Central Control Panel• V

VAV-SVN03A-EN 3FCC InformationVariTrac and Delivered VAV Radio andTelevision InterferenceVariTrac and Delivered VAV generate, use, and can radiate rad