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Trane VariTrac Dampers Installation and Maintenance Manual

1. VAV SVN03A EN TRANE VVire AC Povver VVire AC Povver CCP Field Wiring Field wiring to the VariTrac Central Control Panel includes AC power wiring e binary input wiring e communication link wiring binary output wiring requires optional relay board These procedures are detailed in the following sections Refer to Figure 6 for wiring connections Figure 6 Field Wiring Termination Board TB2 Se TR Line voltage 24Vac A 2 314 4 Ng E 6 Ale JE EA gt 8 8 A E a US Comm4 UCM Comm4 UCM __ All x m 10 m Comm4 Comm4 gt link link Emi plice 12 1 Tracker Comm5 UCM A LA mz Sia comm omm 5 E link 5 link 14 A w E E Ny Splice 15 Legend Figure Notes Transformer 1 All customer wiring must be in acordance with national state and local electrical codes Figure note 2 Trane recommends a dedicated transformer Termination resistor for 24 Vac power Twisted pair shielded w
2. 6 CO ENS E E EEE EEE 0000000000 7 OCCUPANCY Sensor ee ii 7 Operator Display Optional ere ee e si ei nei i sssi 7 Service Model Number Description 7 Specifications 9 VariTrac Central Control Panel 9 Operator Display nico 10 VAV SVN03A EN i 10 Communicating Sensor Bypass Control Assembly n sssssssssssssssrnnsssssrnnssrrnnns 11 Relay Board Binary Outputs s s 11 Wire Specifications s s sss AAEE E aAA E RENAE ri KAREDA Ioia i 11 Getting Started 13 Unpack and Inspect the Components nn nn nenas 13 Mount the Wiring Base sua laqana busua pasas asada lun uay q 14 Mounting Requirements EE 14 Location 14 Operating Environment 14 Clearantes ai EES EE Biy 14 Secure Termination Module Wall 15 Secure Termination Module to Conduit Box 16 Install VariTrac CCP Relay 16 Wire AC Powerade 17 CCP Field Wir te WEE 17 AC POWEr MIR ee I S eats eee A u iu 18 AC Power Checkout ies ua Egeter AE 18 Binary inputVViring Z g ua ua tate cdo 18 Priority Shutdown Input Wirtng i iei si s iii 18 Occupied
3. Premium grade color coded polymer e Premium grade natural polymer alloy plenum Jacket e Premium grade SR PVC non plenum e Suitable for use from 0 C to 75 C e Suggested rating of 300V Overall polyester supported aluminum foil plus a stranded tinned copper drain wire to facilitate grounding Packaging 7 ft 305m pay out cartons 1000 ft 305m spools or All cables are compatible with applications that incorporate LonWorks technology Industry Listed by UL as Type CM CMP CL2P and or PLTC cables Approvals for use in NEC Article 800 and or 725 installation Note Comm4 link limits for new VariTrac CCP Specification Application 3500 feet daisy chain 35 devices VAV SVN03A EN TRANE VAV SVN03A EN Getting Started Familiarize yourself with the system components and preview the installation procedures before installing and configuring the VariTrac system Installation and configuring procedures appear in suggested order of performance e Unpack and inspect the components Mount the wiring base e Wire AC power Binary input wiring Output wiring e Install communicating sensor bypass damper control e Install bypass damper s and connect to communicating sensor bypass control assembly e Install VariTrac dampers e Connect UCM wiring e Set UCM DIP switches e Install slaved dampers if used e Install zone temperature sensors Communication link wiring Mount main modu
4. Installation Manual VariTrac Central Control Panel sr r s June 2002 VAV SVNO3A EN VAV SVN03A EN VariTrac Central Control Panel Installation Manual This manual and the information in it are the property of American Standard Inc and shall not be used or reproduced in whole or in part except as intended without the written permission of American Standard Inc Since Trane has a policy of continuous product improvement it reserves the right to change design and specification without notice Use of the software contained in this package is provided under a software license agreement Unauthorized use of the software or related materials discussed in this manual can result in civil damages and criminal penalties The terms of this license are included with the compact disk Please read them thoroughly Trane has tested the system described in this manual However Trane does not guarantee that the system contains no errors Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any person of such revision or change Trane may have patents or pending patent applications covering items in this publication By providing this document Trane does not imply giving license to these patents The following are trademarks or registered trademarks ofTrane Reliatel Tracker Trane VariTrac VariTrane and Voyager Printed in the U S A
5. Proper temperature sensor location is crucial to occupant comfort The sensor should be placed in the most critical area of the zone vvhere there is free circulation of air It should be mounted on a flat interior surface approximately 54 inches from the floor or as specified by the project plans and specifications Avoid locating sensors in the follovving places areas of direct sunlight areas blanketed by air from diffusers or subject to drafts e surfaces with unconditioned areas behind them such as an outside wall or the vvall of a storeroom VAV SVN03A EN TRANE VAV SVN03A EN Mounting Standard and Digital Zone Temperature Sensors e areas near heat sources like equipment appliances computers copiers etc or concealed pipes or chimneys e dead spots behind doors draperies or in corners Mounting Standard and Digital Zone Temperature Sensors Zone temperature sensors consist of two basic pieces the base and cover Externally adjustable versions have an external adjustment knob To remove the sensor cover from the base 1 Note the position of the adjustment knob if present 2 Use a small screwdriver to gently pry the adjustment knob from the cover 3 Before mounting a zone temperature sensor remove zone sensor cover by easing the tip of a small screwdriver between the base and the cover Gently lift the top of the screwdriver up Do not force Follow these steps to replace the zone temperature sensor
6. VAV SVN03A EN TRANE VAV SVN03A EN FCC Information VariTrac and Delivered VAV Radio and Television Interference VariTrac and Delivered VAV generate use and can radiate radio frequency energy If not installed and used in accordance with the instruction manual interference to radio and television reception may occur VariTrac and Delivered VAV are tested and comply with the limits for Class A computing devices in accordance with the specifications in Subpart J of Part 15 of FCC rules to provide reasonable protection against such interference in a commercial installation There is no guarantee that interference will not occur in a particular installation If interference does occur consult a radio or television technician for suggestions to correct the problem Also the booklet How to Identify and Resolve Radio TV Interference Problems is available from the U S Government Printing Office Washington DC 20402 Order stock 004 000 00345 4 FCC Information TRANE Declaration of Conformity Manufacturer s Name Manufacturer s Address Trane 4833 White Bear Parkway Saint Paul Minnesota 55110 USA The manufacturer hereby declares that the product Product Name Product Number Product Option VariTrac CCP Controller X13650940010 X13650942010 Operator Display Conforms to the following standards or other normative documents Electromagnetic Emission by Council Directive 89 336 EEC Elec
7. o inss iq o S 5 r E Bes ES ms D al E sil E E Ne E E SS Nk R Le EEE sisie ER Ehr H ER E a y HNH 2 12 4 13y a Li ms lt lquuessy L ss ippv WON 9402 Zil ss appy NIN uoz 5 L josjuoy ssedAg Josuas BuneoSiunuiuuuoo ei 281 pieog uoneuluu l LL VAV SVN03A EN 34 Voyager Communication Link Wiring Figure 18 Voyager Communication Link Wiring VariTrac Communications l 5 3 Interface Comm4 HE K FILT Comm Termination Details for Voyager RTU 27777 Voyager UPC TRANE ROOFTOP UNIT Unit Control Panel TRANE COMMUNICATION INTERFACE LOCATED BOTTOM CENTER OF RTU CONTROL PANEL ECONOMIZER POWER MISC Ka TEMP coMM PUT LINK 182 mi 5 00 o SHIELDS H 00 sys 1 TSP o 2209 sere 0 Figure Notes TO COMMa DEVICES 1 All dip switches off 2 Comm board to non isolated Comm3 or Comm4 option VAV SVN03A EN 35 Getting Started Figure 19 Precedent Communication Link Wiring Varilrac Communications Interface Comm4 Comm Termination Details for Voyager RTU mm Trane Communication nterface Precedent O 00000 o COMMa DEVICES TCI P Precedent UCP Figure Notes S Unit Control Panel 1 All dip switches off 2 Comm board to non isolated Comms or Comm4 option Mount Main Module After mounting
8. 2002 American Standard Inc All rights reserved Contents About This Mlanual 1 DD Dee ka qu di 1 Compliance Information 1 ee Me cuina n 1 VariTrac Changeover Bypass System 1 NEII OW aree ia lino 1 Getting Stared cid 1 Installing and Configuring the System 1 Troubleshooting WEE 1 Delivered VAV System did 1 OVENI EW sos ya 1 Getting Started m AAA sea s s an 1 Installing and Configuring the System 1 Naming Conventions s u u data 2 Cautionary Statements ree iisa a DA si 2 Related Literature uu dd 2 FCC information 3 VariTrac and Delivered VAV Radio and Television Interference 3 VariTrac Changeover Bypass System 5 EE 5 Central Control Panel 2 s uma ii 5 Unit Control Module UCM a a aaa rassssssssaa 5 Vari rac DaM pO sical a un ENEE ees 5 Communicating Sensor Bypass Damper Control 6 VariTrac Bypass Damper EEN 6 Communicating Sensor Bypass Control 6 Auxiliary Temperature Sensor 6 ZoneTemperature 56 50 5
9. Power Requirements Operating Environment Storage Environment UCM Damper Power Requirements Operating Environment Storage Environment Control Box Communication Link Wiring The operator display is powered by the CCP 32 F to 122 F 10 to 90 relative humidity non condensing 40 F to 185 F 5 to 95 relative humidity non condensing NEMA 1 resin enclosure plenum Plugs directly onto VariTrac CCP 8 75 in high x 10 25 in wide x 1 5 in 20 to 30 Vac 60 Hz single phase 10 VA Minimum plus load of optional heat outputs Class 2 transformer required 32 F to 120 F 10 to 90 relative humidity non condensing 50 F to 200 F 5 to 95 relative humidity non condensing NEMA 1 metal enclosure plenum rated Communication link wiring must be Level 4 22 AWG twisted shielded pair wire with stranded tinned copper conductors Maximum total wire length is 3500 feet Wire must meet Trane specifications See Table 1 Communication Link Wire Specifications VAV SVN03A EN TRANE Communicating Sensor Bypass Control Assembly Communicating Sensor Bypass Control Assembly 20 to 30 Vac 60 Hz single phase 15 Power Requirements VA minimum Class 2 transformer required 32 F to 120 F Operating Environment 10 to 90 relative humidity non condensing 50 F to 200 F Storage Environment 5 to 95 relative humidity non condensing Control Box NEMA 1 metal enclosure plenu
10. TB2 1 andTB2 2 The supply voltage should be between 20 Vac and 30 Vac e Assure that a reliable ground is attached to TB2 3 on the CCP e Check the UCM communication link to assure that the wire designated is connected to the TB2 10 and the wire designated is terminated at the TB2 11 The shield must be connected toTB2 12 AWARNING The following test should not be performed until all people and equipment are clear of the air conditioning unit If the air handling unit is controlled by the optional field installed relay board check the operation of the supply fan and heating and cooling stages by jumping the appropriate terminals of the binary output terminal block TB1 This check assures that the wires are properly terminated at the CCP and that the air conditioning unit is operational UCM e Verify that the damper is installed with the drive shaft horizontal See the Installation and Wiring section of this manual for more details Check to assure that all mounting screws are a minimum of three inches away from the center damper bead if hanging straps are used This allows full rotation of the damper e Check the supply voltage atTB1 1 andTB1 2 Polarity is important Notice thatTB1 1 is designated 24V andTB1 2 is designated ground to unit casing ground The acceptable voltage present is 20 Vac to 28 Vac ACAUTION Connecting a shared UCM power supply with reversed polarity will cause damage to the UCM TCI and Centr
11. Unoccupied Input Witng 55555 19 O tputVViring S s da 19 Install the Bypass Dampers and Communicating Sensor Bypass Control Assembly sasi e s sssi ie ss ini 20 Install Bypass Dampers EE 20 Bypass Damper Wiring l 21 Mount the Communicating Sensor Bypass Control 21 Connect the Communicating Sensor Bypass Control Wiring 22 Install the VariTrac Dampers U nn cnc nr 23 Connect UCM Witng uu uu u masa nan aha qh hI ap 24 Set the UCM DIP Switches 25 Slaved NR Elle 26 Install the Zone Temperature Sensors ss ii s l 28 Located asada apuka 28 Mounting Standard and Digital Zone Temperature Sensors 29 Wall Mou Eire i n 29 Junction BOX Mount 29 Zone Temperature Sensor Wiring 30 Communication Link Wiring EE 32 Mount Main Module EEN 36 Install Operator Display optional ss s 37 Connecting Modem Devices AE 38 VAV SVNO3A EN Connecting PC with VariTrac Software to 39 Installation Checklist 41 le 41 Unit Location 41 AC PovverVViring iia ad aa i 41 Communicating Sensor Bypass Assembly 41 Input Wiring iii a 41 OUTPUT WIRING nit ia His
12. a daisy chain configuration With this configuration it is easier to solve communication problems by isolating portions of the communication link See Figure 16 for an example of a daisy chain configuration VAV SVN03A EN TRANE Communication Link Wiring Figure 16 Daisy Chain Configuration for Communication Link Wiring VariTrac Central Control Panel Dampers UCM Dampers UCM Dampers UCM Dampers UCM Dampers UCM Dampers Each Voyager Reliatel Rooftop requires a Trane communications interface TCI board for connection to the VariTrac Central Control Panel communication link Refer to the TCI installation manual for more information on connecting a rooftop to the communication link VAV SVN03A EN 33 TRANE Getting Started Jul LIO y uo p nb si 2upede ON 6 quo sasodind uoneu1suouu p JO SI 511 u NIN 34L STEEN Y Dias R 1u A 1d 0 y9eq ade pue suoneono ds uel s d fre pjelys ollds 19 1 011u09 jun yoeRe 1y p nb si pjaiys snonunuos y z JIM p pl lus ued pasm 7 1 o11uo2 uN 1s 16 pade pue 4060 1n9 aq 1snui Dias p ya Y N 5 tv yz yBnoJul el Y si duieq auoz o ao1ds x 2 y E s LS ap 0 O 6 o m 8 2 L 9 J99MPSUBAL
13. air temperature sensor allows the CCP to determine the heat cool action of each individual UCM and cycles the heating and cooling stages to maintain the discharge air temperature Discharge air temperature setpoints are also edited through the operator display or PC software Auxiliary Temperature Sensor The auxiliary temperature sensor allows the operator to monitor air temperature leaving a reheat device or measure duct temperature for automatic operation of a standalone UCM Zone Temperature Sensors Five zone temperature sensor configurations are available e sensor only e sensor with adjustable setpoint and communications jack e sensor with night setback override button cancel button and communica tions jack e sensor with adjustable setpoint night setback override button cancel button and communications jack 6 VAV SVN03A EN TRANE CO Sensor e sensor vvith digital display adiustable setpoint night setpoint override button cancel button and communications jack CO Sensor A CO sensor may be connected to the UCM damper control to sense CO levels in the space This signal is communicated to the CCP for demand ventilation calculation and control Occupancy Sensor A normally open occupancy sensor contact may be connected to the UCM damper control binary input to indicate zone occupancy Operator Display optional A 1 4VGA monochrome LCD touch screen display is available for the CCP This display prov
14. any AC power wires other than VariTrac Central Control Panel 24 Vac power could cause the VariTrac Central Control Panel to malfunction due to electrical noise 19 Getting Started 20 TRANE Figure 7 Binary Output Wiring for Optional Relay Board Termination Board TB1 E mil m mm m 24 Vac from the rooftop unit For single transformer systems connect Rc to Rh For two transformer systems connect the cooling transformer to RC and the heating transformer to Rh E Install the Bypass Dampers and Communicating Sensor Bypass Control Assembly Install Bypass Dampers Bypass damper s should be located before the first zone runs out from the supply air duct VariTrac dampers or supply duct branches should be installed downstream of bypass dampers The distance between bypass dampers and the communicating sensor bypass control should be two to three equivalent duct diameters In a ducted return system bypass dampers will be ducted directly to the return air duct In systems with plenum return bypass damper s should be ducted into the return air riser Confirm that sufficient relief or exhaust exists to prevent return plenum pressurization See Figure 8 IMPORTANT The use of a relief fan or backdraft damper is strongly recommended in the return air system This will prevent bypassed air from pressurizing the return air duct system and spilling out of return grills into conditioned spac
15. automatic operation of a standalone UCM Zone Temperature Sensors Five zone temperature sensor configurations are available e sensor only e sensor with adjustable setpoint and communications jack e sensor with night setback override button cancel button and communica tions jack e sensor with adjustable setpoint night setback override button cancel button and communications jack sensor with digital display adjustable setpoint night setpoint override button cancel button and communications jack CO Sensor A CO sensor may be connected to the UCM damper control to sense CO levels in the space This signal is communicated to the CCP for demand ventilation calculation and control Occupancy Sensor A normally open occupancy sensor contact may be connected to the UCM damper control binary input to indicate zone occupancy Operator Display A Va VGA monochrome LCD touch screen display is installed on the CCP This display provides setup diagnostic and seven day scheduling functions to the system VAV SVN03A EN TRANE VAV SVN03A EN Getting Started Familiarize yourself with the system components and preview the installa tion procedures before installing and configuring the Delivered VAV system Installation and configuring procedures appear in suggested order of performance Installing the Central Control Panel Refer to the following installation procedures for the CCP in this manual e Unpackin
16. to power any devices other than the VariTrac Central Control Panel This could result in malfunction of the VariTrac Central Control Panel due to electrical noise AWARNING To prevent death or injuries from electrical shock disconnect external power to the VariTrac Central Control Panel before making power connec tions AWARNING When measurements are made with power on use care to prevent injuries or death from electrical shock Binary Input Wiring Use 18 22 AWG twisted pair copper conductor wire for binary input wiring Wire run should be limited to less than 1 000 feet to avoid electrical noise problems Refer to Figure 6 for proper connection of binary inputs Priority Shutdown Input Wiring This input closes the connection betweenTB2 6 andTB2 7 The most likely source of this input is a building management system or fire control panel but any other device allowing a dry contact connection may be used When the connection is open the VariTrac Central Control Panel operates normally When the connection is closed the CCP goes into priority shutdown VAV SVN03A EN TRANE VAV SVN03A EN Occupied Unoccupied Input Wiring Occupied Unoccupied Input Wiring This input closes the connection betweenTB2 8 andTB2 9 This is most likely from an external time clock but any other device allowing a dry contact connection may be used When the connection is open the VariTrac Central Control Panel operates in the occupied mo
17. with Operator Display VAV Terminal Unit VAV Terminal Unit VAV Terminal Unit w x VAV Terminal Unit VAV Terminal Unit VAV Terminal Unit Each Voyager VAV Rooftop requires aTrane communications interface TCI board for connection to the VariTrac Central Control Panel communication link Refer to the TCI installation manual for more information on connecting a rooftop to the communication link 59 TRANE Getting Started iring kWi In UCM Communication L Figure 26 S WO PWC 281 pieog uoneuluu l ded eA 441 WULUOD SY uo p unb 1 si 19p10 10005 ON uo sasodind uonensuouu p JO SI 5141 l WON SYL 1oN BuipunoiB6 1u A 1d 19eq ade pue pjalys ao1ds l llonuo YUN yoea 1y p nb si pjaiys snonunuos y Z Y llonuo yun 156 18 pede pue 39eq Ind aq 3snu plays 033402 1033402 Won aq M n 200 sselppy ajou pjaiys V suonp nlo ds ue1 i d fF SJIM papjelys ued parsim pu B 1 Y v ze u roun y suun ul AVA OL paeog o1uoy yams won aa ent E feech sii E Ecri ER E ENN Ave IND 44 13y Ave IND 44 y Ave OND 48 13y L SSSIPPV WON AVA zi SSSPPY WON AVA gil SSSIPPVY INON AVA VAV SVN03A EN 60 Voyager Communication Link Wiring Figure 27 Voyager Communicati
18. 2 1 through TB2 6 Ensure that polarity has been maintained through the link O Communication link wire shields spliced at each device junction and taped to prevent contact with earth ground Completing Central Control Panel Assembly Mount Main Module Refer to Mount Main Module instructions in this manual Install Operator Display Refer to Install Operator Display instructions in this manual The Operator Display is required for the Delivered VAV system to function Connecting Modem Devices Refer to Connecting Modem Devices instructions in this manual VAV SVN03A EN TRANE Trane An American Standard Company www trane com For more information contact your local district office or e mail us at comfortOtrane com Literature Order Number VAV SVNO03A EN File Number SV AH VAV 000 SVNO3A EN 0602 Supersedes VADA IN 2 Stocking Location La Crosse Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice Only qualified technicians should perform the installation and servicing of equipment referred to in this publication
19. Connections to the central control panel are 24 Vac power binary inputs for an occupied unoccupied signal and external priority shutdown signal optional ICS communication bus to the Trane building automation system op tional UCM communication bus to the zone dampers and communicating sensor bypass damper control and Trane Voyager Reliatel rooftop unit binary outputs to heating cooling and fan of non Voyager or Reliatel rooftop units Unit Control Module UCM A unit control module is mounted to each individual zone damper Inputs and outputs consist of the twisted shielded pair communication link zone temperature sensor optional CO and occupancy sensors 24 Vac power damper motor control and local heat outputs Local heat may be duct or space mounted and can be staged electric pulse width modulating electric and modulating or staged two position hot water VariTrac Damper Each VariTrac damper consists of an integrated 24 Vac actuator and control box that encloses the UCM circuit board The damper is designed to operate in static pressures up to 1 75 inches wg VariTrac dampers are referred to by their dimensions round damper sizes are 6 8 10 12 14 and 16 inches The dampers con sists of an 18 gage galvanized steel frame with a round damper blade assembly TRANE e rectangular damper sizes are 8 x 12 8 x 14 8 x 16 10 x 16 10 x 20 and 14 x 16 inches The damper consists of a 16 gage gal
20. Damper Installation IMPORTANT Mounting screws must be 3 away from damper gt bend to avoid interference with rotating damper Hard or Flex Duct Attach unit to hard duct using a minimum or four sheet metal screws ard or Flex uct Attach unit to hard duct using a minimum of four Attach flex duct to unit using sheet metal screws self locking plastic tie strap located 1 4 past the crimp Attach unit to hard duct using a minimum or four sheet metal screws Hard or Flex Duct Attach unit to hard duct using a minimum of four sheet metal screws 23 Getting Started 24 Figure 11 Proper Damper Mounting Positions CAUTION Dampers must always be installed with the drive shaft horizontal Connect UCMI Wiring Connect the power to terminals TB1 1 24V and TB1 2 ground 24 Vac is required to power the UCM control 20 Vac to 28 Vac is acceptable Use 18 to 20 AWG for power wiring The power consumption for an auto changeover cooling only UCM model CHGR is 10VA Local heat outputs are rated at 10VA maximum for each output To determine the total UCM power requirements add the power consumption of local heat to the circuit board power ACAUTION Use wires with copper conductors only The use of aluminum or other types of wire may result in overheating and equipment damage ACAUTION Connecting a shared UCM power supply with reversed polarity will cause damage to the UCM TC
21. E At the VariTrac Central Control Panel the communication link wires must be connected to Terminals TB2 10 andTB2 11 Refer to Figure 26 This connection is polarity sensitive IMPORTANT Connections betvveen lengths of link vviring should be soldered and taped Wire nuts are not acceptable ACAUTION Connecting the communication link with reversed polarity will lead to system malfunction and possible equipment damage The shield on the communication link wiring must be connected toTB2 12 The shield wire should be spliced with the shield from the next section of communication link wiring at every junction Tape each splice to prevent any contact between the shield and ground The shield should be cut and taped back at the end of the link Communication link wiring cannot pass between buildings IMPORTANT Improper communication link shield connections will lead to system malfunction IMPORTANT Improper communication link routing will lead to system malfunction Connect UCMs on the communication link in a daisy chain configuration With this configuration it is easier to solve communication problems by isolating portions of the communication link See Figure 25 for an example of a daisy chain configuration VAV SVN03A EN TRANE VAV SVN03A EN Daisy Chain Configuration for Communication Link Wiring Figure 25 Daisy Chain Configuration for Communication Link Wiring VariTrac Central Control Panel
22. I and central control panel ACAUTION When powering multiple UCMs from one transformer polarity must be maintained Terminal TB1 1 is designated positive and Terminal TB1 2 is negative to unit casing ground IMPORTANT UCM control box cover must be replaced after field wiring to prevent electromagnetic interference VAV SVN03A EN VAV SVN03A EN BK RETUI OCCUPANCY SE 1 1 24VAC TB4 1 BIP CONTACT 784 1 24yAC 181 2 GND NOT CONNECTED OPTIONAL FIELD STALLED GO ro vit 3ND_ST HEATER STAGE vio 240 516 CONTACTORS to g 151 50 2 o HOT OPTIONAL FIELD INSTALLED ELECTRIC HEATER TER VALVE PROP CLOSE E R 24V A sto PN E AX vi FIEI STALLED PROPOR ZA V LVE OFF To 8 water VALVE l 4 Vi I dE va Wax OPTIONAL FIELD INSTALLED OFF WA TIONAL ae Wa Aux TEMP TALLER gt SENSOR Figure 12 UCM Wiring A ae 1 TO 24V TRANSFORMER WIRING DAS n 2 Lu a 1 m BIP any al 2 SU D mm D D C NU C M CONTROL BOARD ADDRESS SWITCH 7 Da VW LJ pa a dn e YEL GRN A Arr a di l ZONE GND ST A CO2 GND D D C U C M CONTROL BOX SHIELDED TWISTED PAIR COMMUNICATIONS OPTIONAL INSTALLED ZONE SENSOR FIELD FIELD WIRING SSH ere OPTIONAL OR ALTERNATE WIRING 2 1 4 QUICK CONNECT REQUIRED FOR ALL FIE
23. LD CONNECTIONS 3 ZONE SENSOR TERMINALS 4 AND 5 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION A NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL CE CONNECT RED AND GREEN MIRES TOGETHER ON OCCUPANCY SENSOR AND THEN TO THE 24VAC HOT ON THE TRANSFORMER lt 6 AS SHIPPED THE AUX INPUT 15 CONFIGURED AS AN AUX TEMPERATURE INPUT 1 FACTORY WIRING OPTIONAL FIELD INSTALLED ZONE SENSOR Set the UCM DIP Switches THE AUX TEMPERATURE INPUT CAN BE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE lt 7 S TERMINAL NOT TO BE USED WITH THIS APPLICATION lt IF UNIT MOUNTED TRANFORMER 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 TB 2 lt 2 SHIELDS OF COMMUNICATIONS WIRING SHOULD BE TIED TOGETHER AND INSULATED Set the UCM DIP Switches Each device connected to the VariTrac Central Control Panel must a unique address No two devices of the same type can have the same address Table 2 lists the address settings for UCM DIP switches connected to the VariTrac Central Control Panel IMPORTANT The UCM located in the communicating sensor bypass control must always be addressed as 33 25 Getting Started 26 TRANE Table 2 DIP Svvitch Settings for UCM Dampe
24. NNECTOR R CLOSE I Static Port ACT HP DN 24V CT F gi Lis Jeo ttoo 31 YY emale plug end of bypass KIK KHk E 4 a sensor assembly cable Address DDC UCM Control Board Male plug end located on DDC UCM control board FR Pressure Transducer ETA TLE GND Air Supply L Temp Sensor DDC UCM Control Board Shielded Twisted Pair Communications Wiring VAV SVN03A EN TRANE VAV SVN03A EN Install the VariTrac Dampers Install the VariTrac Dampers A sketch of basic damper installation is shown in Figure 10 The damper may be connected with hard duct or flex duct at either end If two bypass dampers are installed a pigtail socket is provided on the cable so the second damper can be plugged into the UCM IMPORTANT Mounting screws must be located towards the ends of the damper when hanging straps are used to avoid interference with the rotating damper A label attached to the dampers indicates the acceptable areas for mounting screws IMPORTANT It is important to note airflow direction when installing the damper A label for this is present on each damper assembly IMPORTANT The control box on each damper must be positioned to orient the drive shaft horizontally Failure to do this may result in drive train malfunction See Figure 11 Figure 10 VariTrac
25. RJ 12 port PC direct connection To modem serial port E RJ 12 port for PC direct connection bottom side RJ 12 cable PN 35914260 Connect RJ 12 to 25 pin male adapter PN 35914269 Connecting PC with VariTrac Software to CCP The VariTrac PC Software provides a graphic user interface for VariTrac and Delivered VAV systems Advanced status and set up information are avail able via a PC serial port connection Install the PC software on your PC following the instructions provided with the software CD Connect your PC to the Central Control Panel as shown in Figure 23 The connection is made using a PC serial port adapter and cable Adapter DB9 female to RJ12 PN 3591 4262 Cable RJ12 to RJ12 PN 3591 4260 39 Getting Started TRANE Figure 23 Typical VariTrac Central Control Panel to PC serial port connec tions Termination module bottom vievv RJ 12 port PC direct connection Connect RJ 12 to 9 pin female adapter PN 35914262 To PC serial port 40 Hi E RJ 12 port for PC direct connection RJ 12 cable PN 35914260 VAV SVN03A EN TRANE VAV SVN03A EN Installation Checklist Complete this checklist as the VariTrac Central Control Panel is installed to verify that all recommended procedures are performed This checklist does not replace the detailed instructions provide
26. Rae Pa ean cies 41 Varrirace Dampersiz triad ana b ha alas haasi 42 Zone Temperature 5 5 0 5 42 UCM Wiring Sa 42 Communication Link Wiring a 42 System Start Up and Checkout 43 Pre povver Up Checkout EEN EEN 43 Central Control Panel uge a u Tau adn 43 UA O aaa n 43 Occupied iaa 44 Unoccupied Mode u ae R eee R YY S RK R R Ray ua 44 Powering Down the 5 sasi assi sis 44 CM LEDS eL asa is 44 Green LED u uum aa al da aa 45 Yellow LED u din 45 Tests and Troubleshooting 47 Displayed Failures u iia 47 Static Sensor Calibration Failure sssi s l 47 Discharge AirTemperature Sensor Failure 47 Communication Failure EE 47 Zone Sensor Failures vivid in tds n s n 48 Zone Setpoint Failures u u ii ENEE Ed 48 Auxiliary Sensor Failure nccrnnnnn rn narnia 48 Static Pressure SensorTroubleshooting 48 Zone Auxiliary and System Temperature Sensor Checkout 48 UCM Local Heat Checkout 5 50 Central Control Panel Input Output Test 50 intaia daa 50 Communicating Sensor Bypass Con
27. able codes If used relay wiring is terminated atTB1 1 through 11 per instructions 41 Installation Checklist 42 TRANE R UCM dampers mounted and secure according to recommendations VariTrac Dampers Zone Temperature Sensors O Sensors are properly mounted and wired per instructions and in the correct space UCM VViring O UCM power is properly wired to TB1 1 and TB1 2 NOTE TB1 2 is COMMON case ground if grounded secondary transformers are being used Confirm polarity from one UCM to the next if more than one UCM is being povvered from a single transformer O Confirm voltage present between 20 Vac and 28 Vac O Ensure that the sensor is properly terminated O If optional local heat is being used confirm wiring per appropriate diagram Communication Link Wiring O Field installed communications wiring complies with all applicable codes O VariTrac Central Control Panel communication link wiring to UCMs is connected atTB2 10 TB2 11 and TB2 12 on the CCP O Communication link wiring is properly terminated at each zone damper UCM on terminals 2 1 through TB2 6 Ensure that polarity has been maintained through the link O Communication link wire shields spliced at each device junction and taped to prevent contact with earth ground VAV SVN03A EN TRANE VAV SVN03A EN System Start Up and Checkout Pre power Up Checkout Central Control Panel e Measure the supply voltage to the CCP
28. al Control Panel When powering multiple UCMs from one transformer polarity must be maintained Terminal TB1 1 is designated 24V and Terminal TB1 2 is GND to unit casing ground e Verify that communications wiring is terminated at TB2 1 andTB2 2 Polarity is important Verify that zone sensor connections are correct as detailed in the Installa tion and Wiring section of this manual 43 System Start Up and Checkout 44 TRANE e Verify that the proper unit address is set on each UCM Occupied Mode After the system is completely vvired and installed it is ready for the initial povver up Upon povver up the CCP and UCMs will initiate the sequence of events that follows IMPORTANT For the CCP start up sequence to begin it is necessary for one UCM and a communicating sensor bypass control on the loop to communicate with the CCP The CCP prepares for static calibration UCMs begin driving closed to perform their calibration reset After calibration the UCMs are driven to maximum position and the bypass begins to close The zero flow voltage reading is taken with the fan off System fan is turned on for approximately 45 seconds High flow static sensor voltage is taken and stored in the CCP The bypass damper is then driven to 50 percent and released The UCMs are released from their MAX flow position UCMs are scanned and heating cooling callers are established Fan remains on if edit
29. and wiring the wiring base attach the main module NOTE It is not necessary to turn off 24 Vac power to the wiring base prior to mount ing and removing the main module e Verify that all the wires on the wiring base are securely fastened in place Carefully line up the alignment pins on the wiring base with the back of the main module Figure 20 36 VAV SVN03A EN TRANE Mounting Main Module Figure 20 Mounting Main Module Termination module Main module Alignment pin four places IMPORTANT Do not use excessive force when mounting the module If the module does not snap easily into place slightly reposition it on the alignment pins Failure to comply may cause damage to the module Firmly push the main module onto the wiring base until it snaps into place If 24 Vac is applied the main module will start The LEDs on the main module will flash on and off after a few seconds Install Operator Display optional An operator display is available to provide monitoring and control of VariTrac systems and UCM zones from one central location The display provides a 1 4 VGA touch screen to allow the operator to interface with the system Temperature and system failure diagnostics and Voyager and Precedent Rooftop unit alarms are indicated on the operator display screen and in PC software NOTE It is not necessary to turn off 24 Vac power to the wiring base prio
30. codes O 24Vac line from dedicated Class 2 transformer connected to VariTrac Central Control Panel atTB2 O Voltage measured atTB2 1 toTB2 2 is 20 to 30 Vac O Assure that a reliable earth ground has been attached toTB2 3 Input Wiring O Field installed input wiring complies with all applicable codes O Optional time clock and priority shutdown inputs terminated atTB2 6 throughTB2 9 per instructions VariTrane Terminal Units O Air terminal units mounted and secure according to recommendations Zone Temperature Sensors O Sensors are properly mounted and wired per instructions and in the correct space UCM Wiring O UCM power is properly wired toTB1 1 andTB1 2 NOTE TB1 2 is COMMON case ground if grounded secondary transformers are being used Confirm polarity from one UCM to the next if more than one UCM is being powered from a single transformer 63 Installation Checklist 64 TRANE O Confirm voltage present between 20 Vac and 28 Vac O Ensure that the sensor is properly terminated O If optional local heat is being used confirm wiring per appropriate diagram Communication Link Wiring O Field installed communications wiring complies with all applicable codes O VariTrac Central Control Panel communication link wiring to VAV UCMs and Voyager VAN rooftop unit is connected atTB2 10 TB2 11 andTB2 12 on the CCP O Communication link wiring is properly terminated at each zone damper UCM on terminals TB
31. cover and if present adjustment knob after mounting 1 Align the cover with the sides of the base 2 Press the cover toward the wall until it snaps into place 3 Align the knob to the position noted prior to its removal 4 Push the stem through the cover hole until the stem sits firmly in setpoint potentiometer 5 Turn the knob to assure that it rotates freely through the entire range of temperature settings Wall Mount With the cover removed feed the control wires through the rectangular opening in the base Follow these steps if mounting the sensor to a wall 1 Assuring that the base is level position the back of the base over the wire entry in the wall 2 Mark the centers of the two oblong mounting holes then set aside the base 3 Drill a 3 16 in diameter hole approximately 1 in deep at the marked locations 4 Insert plastic anchors into the holes until they are firmly seated 5 Feed the control wires through the base and fasten the base to the wall with the supplied mounting screws 6 Connect the control wires to the proper terminals on the temperature sensor See Figure 15 7 Replace the sensor cover Junction Box Mount 1 With the cover removed feed the control wires through the rectangular opening in the base 29 Getting Started 30 TRANE 2 Using two 6 32 screvvs fasten the base to the junction box s threaded mounting holes 3 Connect the control vvires to the proper terminals on
32. ctuator To NEC Class 2 24V Transformer yor 4 m SPARE W HOT CONNECTOR EK OPEN R CLOSE HIP GND 124V 2020220506 151 oo d a Load 8 VA without actuator VAV SVN03A EN Shielded Twisted Pair Communications Wiring Address DDC UCM Switch Control Board Q HHHH 6 n o Tan Para Dou T N allel sel 5061 6 eleal GE EE ZONE GNILSETA ULP GND STO zizi 3 5 71 1000 Female plug end of bypass sensor assembly cable Male plug end located on DDC UCM control board DDC UCM Control Board Steps 1 amp 2 27 Getting Started 28 TRANE Install the Zone Temperature Sensors Five types of zone temperature sensors are available The sensors are shovvn belovv in Figure 14 e sensor with night setback override button cancel button and communica tions jack e sensor with adjustable setpoint night setback override button cancel button and communications jack e sensor with adjustable setpoint and communications jack e sensor with night setback override button cancel button and communica tions jack e sensor only sensor with digital display adjustable setpoint night setpoint override button cancel button and communications jack Figure 14 Zone Sensor Options Location
33. d in the manual Read the entire manual carefully to become familiar with the installation procedures before installing the unit Shipment O Inspect VariTrac Central Control Panel for shipping damage File claim if necessary O Inspect zone dampers and accessories for shipping damage File claim if necessary Unit Location O Install VariTrac Central Control Panel in environment that meets tempera ture and humidity requirements O Securely mount Vari Trac Central Control Panel on wall at an accessible location with proper clearances AC Power Wiring O Field installed AC power wiring complies with all applicable codes O 24Vac line from dedicated Class 2 transformer connected to VariTrac Central Control Panel atTB2 O Voltage measured atTB2 1 toTB2 2 is 20 to 30 Vac O Assure that a reliable earth ground has been attached to TB2 3 Communicating Sensor Bypass Assembly O Bypass damper s properly installed between supply return ductwork per instructions O Communicating Sensor Bypass Control mounted and wired to the bypass damper s O Communication cable properly terminated at the Communicating Sensor Bypass Control and routed back to VariTrac Central Control Panel Input Wiring O Field installed input wiring complies with all applicable codes O Optional time clock and priority shutdown inputs terminated atTB2 6 throughTB2 9 per instructions Output Wiring O Field installed output wiring complies with all applic
34. d uapa aaa 63 Jet eine de WEE 63 VariTrane Terminal Untte ENNEN 63 ZoneTemperature Sensors nan ttnn nenen nn 63 WOM Wining BEE 63 Communication Link Wiring E 64 Completing Central Control Panel Assembly 64 Mount Main Module EEN 64 Install Operator Display 64 Connecting Modem Devices L 64 VAV SVN03A EN TRANE VAV SVN03A EN About This Manual Contents This manual describes the steps required to install and configure VariTrac Changeover Bypass Zoning and Delivered VAV Systems Sections in this manual are highlighted below Compliance Information Information about FCC approval and possible radio and telephone interfer ence and the CE compliance statement Specifications Technical specifications for VariTrac Central Control Panel unit and system components VariTrac Changeover Bypass System Overview A brief description of a typical VariTrac changeover bypass system Getting Started Pre installation and setup information Installing and Configuring the System Installation and configuration information including an installation check list Troubleshooting General troubleshooting guidelines for common problems Delivered VAV System Overview A brief description of a typical delivered VAV system Getting Started Pre installation and setup information Installing a
35. de When the connection is closed the CCP operates in the unoccupied mode ACAUTION Do not run binary input wires and AC power wires together in the same conduit or wire bundles ACAUTION Controlling the binary inputs on multiple VariTrac Central Control Panels from a single contact closure is not permitted Output Wiring Use only copper conductors for output wiring The recommended wire size is 16 22 AWG Do not run output wires in the same conduit or wire bundle with any AC power wires other than VariTrac Central Control Panel 24 Vac power Output wires should enter the cabinet through the conduit entry holes shown in Figure 3 Output wiring connections at the VariTrac Central Control Panel are shown in Figure 7 The wire from the air conditioning unit to the CCP consists of one wire from each stage of heating cooling the supply fan and the leg of the 24 Vac power source at the air conditioning unit 24 Vac power single transformer systems terminate power at Rh and Rc TB1 1 andTB1 2 Two transformer systems terminate the heating transformer at Rh TB1 2 and the cooling transformer at Rc TB1 1 The remaining wires are terminated per the diagram in Figure 7 Binary output relay contacts are rated at 24Vac 1 amp 24VA pilot duty IMPORTANT All output wiring must comply with applicable electrical codes Metal conduit may be required by local codes IMPORTANT Output wires run in the same conduit or wire bundle with
36. e especially when the unit is in economizer mode VAV SVN03A EN TRANE VAV SVN03A EN Bypass Damper Wiring Bypass Damper Wiring The interconnect cable is pre wired to the bypass damper and may be lengthened if necessary IMPORTANT Mounting screws must be located towards the ends of the damper when hanging straps are used to avoid interference with the rotating damper A label attached to the dampers indicates the acceptable areas for mounting screws IMPORTANT The bypass damper must be positioned to orient the drive shaft horizon tally Failure to do this may result in drive train malfunction see Figure 11 IMPORTANT It is important to note the airflow direction when installing dampers A label for this is present on each damper assembly Mount the Communicating Sensor Bypass Control Figure 8 Mounting the Bypass Damper Communicating Sensor Bypass Control Assembly Voyager Micro Control Heating and Cooling Coils of Bypass O Damper 2 Return Air Duct Ductvvork 1 Avoid high pressure turns and transitions 2 Use hard duct 3 Mount communicating Sensor Bypass Controller 2 3 duct diameters upstream of bypass damper The communicating sensor bypass control is located between the supply fan and the bypass damper in the least turbulent location possible It is recommended that the distance betvveen the control and the nearest up stream transition be tvvo to three
37. eat outputs are enabled in the heating or cooling control action To check the local heat outputs e Disconnect any connections to Terminals J8 J9 210 or J11 e Place a 500 to 1000 ohm resistor between Terminals common J8 and the terminals J9 J10 or J11 tested This simulates a load condition across the triacs within the circuit board Measure the voltage between J8 common and the appropriate output J9 J10 and J11 When the heat is off the voltage will measure between 0 and 1 5 Vac When heat is on voltage should read 24 Vac Central Control Panel Input Output Test Binary Input Tests With the system in the occupied mode Jump the priority shutdown input TB2 5 and TB2 6 with a wire The system goes into priority shutdown Remove the jumper on the priority shutdown input Normal system operation is restored Jump the uncc input with a wire TB2 6 andTB2 7 The system goes into the unoccupied mode Remove the jumper wire from the uncc input The system will go into the occupied mode Communicating Sensor Bypass Control Test The following defines the procedure necessary to test the supply air temperature and static pressure sensor inputs to the communicating sensor bypass sensor control Supply Air Temperature Input Test e Disconnect the supply air temperature sensor from communicating sensor bypass control terminals TB3 6 and TB3 7 System goes into priority shutdown e Disconnect the static sens
38. ed to occupied fan mode on e Fan energizes if occupied fan mode is edited to auto and sufficient requests are present e The control action of each UCM changes as appropriate e Heating or cooling is staged to maintain the discharge air temperature Unoccupied Mode Each time the CCP enters the unoccupied mode a static sensor self calibration sequence takes place Powering Down the System CCP power must be disconnected to avoid unnecessary zone tagging and personal injury during service UCM LEDs Green and yellow LEDs on the circuit board help diagnose communication or circuit board problems Conditions indicated by the LEDs are VAV SVN03A EN TRANE UCM LEDs Green LED No 24 Vac power or defective board BLINKING Defective Board Yellow LED Reversed communication link polarity No communication link activity or defective board Communication on the link not intended for that UCM The UCM communicated with the CCP VAV SVN03A EN 45 System Start Up and Checkout 46 VAV SVN03A EN TRANE VAV SVN03A EN Tests and Troubleshooting Displayed Failures Static Sensor Calibration Failure If static sensor calibration fails the CCP uses 0 50 inch wg as the static pressure setpoint The zone dampers continue to control normally Failed static sensor calibration may indicate that the position or location of the sensor is not correct See mounting the communicating sensor bypa
39. een the individual zones and the air conditioning unit Connections to the CCP are 24 power binary inputs for an occupied unoccupied signal and external priority shutdown signal optional e ICS communication bus to the building automation system optional e UCM communication bus to the VAV boxes and Trane Voyager commercial 27 1 2 50 ton VAV rooftop unit Unit Control Module UCMI A unit control module is mounted to each individual VAV terminal unit Inputs and outputs consist of the twisted shielded pair communication link zone temperature sensor optional CO and occupancy sensors 24 Vac power damper motor control and local heat outputs Local heat may be duct or space mounted and can be staged electric pulse width modulating electric and modulating or staged two position hot water VariTrane VAVTerminal Units The function of the VariTrane terminal unit in a VAV control zone is to vary the volumetric airflow rate to the zone VariTrane units are supplied with microprocessor based DDC controls Factory installed controls are required with all types of terminal units VariTrane VAV Terminal Unit Types Single Duct Single duct terminal units control the volumetric flow of supply air to the space to maintain the zone temperature at setpoint These units are gener ally applied in cooling only VAV zones that require no heat during occupied hours If local zone heat is necessary it can be provided either rem
40. equivalent duct diameters 21 Getting Started 22 TRANE If the supply duct branches out at the riser install the control in the largest supply duct A two inch hole is required to insert the temperature and static pressure sensor Use the supplied gasket to seal off air leaks Secure the sensor to the duct with a minimum of three sheet metal screvvs IMPORTANT The sensor assembly should be mounted on the side of the duct to keep the pressure transducer in a vertical orientation Do not install horizontally on the top or bottom of a duct Connect the Communicating Sensor Bypass Control Wiring The pre wired interconnect cable plugs into the actuator connector inside the control The cable is designed to connect in one orientation only Refer to the diagram and connect as follows 1 Plugthe red actuator connector brom the BYPS damper onto the master damper UCM socket ACT as shown in Figure 9 2 Iftwo bypass dampers are used connect the second bypass damper s red actuator plus to the spare connector socket pigtailed on the first BYPS damper cable assembly 3 If cable assembly needs to be extended cut and splice additional wire on the BYPS damper end of the cable Figure 9 Wiring the Communicating Sensor Bypass Control Close Open To NEC Class 2 Hot 24V Transformer Actuator Load 8 VA without actuator SPARE W HOT CO
41. g and inspecting the components e Wiring AC power e Binary input wiring NOTE Ignore the sections referring to Installation of the CCP Relay Board and Binary Output Wiring Those sections do not apply to this system Install VariTrane VAV Terminal Units Refer to the appropriate installation instructions shipped with the Vari Trane air terminal devices for proper installation Connect UCM Wiring Refer to Connect UCM Wiring in this manual and the appropriate installa tion instructions shipped with the VariTrane air terminal devices Set UCM DIP Switches Refer to Set UCM DIP Switches and Table 2 in this manual and the appropri ate installation instructions shipped with the VariTrane air terminal devices Installing Zone Temperature Sensors Refer to Installing Zone Temperature Sensors in this manual Communications Link Wiring The VariTrac Central Control Panel communication link TB2 10 11 and 12 connects the CCP VAV UCMs and Voyager VAV rooftop unit Field wiring for the communication link must meet the following requirements e All wiring must be in accordance with the National Electrical Code and local codes Communication link wiring must be Level 4 22 AWG twisted shielded pair wire meets or exceeds Trane specifications See wiring specifications sections in this manual for further information e The maximum total wire length is 3 500 feet for the communication link 57 Getting Started 58 TRAN
42. ides setup diagnostic and seven day scheduling functions to the system Service Model Mumber Description Service model numbers determine product characteristics and are used when ordering replacement parts Each digit signifies product characteris tics See Figure 1 Figure 1 Service Model Number Description VA DA06 1 Product Type o VA VariTrac Product Families D Damper R Rectangular Damper A Development Sequence Damper Size DA06 6 Damper DA08 8 Damper DA10 10 Damper DA12 12 Damper DA14 14 Damper DA16 16 Damper RA0812 8 x 12 Zone Damper RA0814 8 x 14 Zone Damper RA0816 8 x 16 Zone Damper RA1016 10 x 16 Zone Damper RA1020 10 x 20 Zone Damper RA1418 14 x 18 Zone Damper 8 Damper Control BYPS Bypass Control BYR Rectangular Bypass Control CHGR Changeover Control ELEC 3 Stage Primary Heat Disabled Control NCHW 1 Stage Primary Heat Enabled Inventory Number RA1412 14 x 12 Bypass Damper RA1616 16 x 16 Bypass Damper RA2020 20 x 20 Bypass Damper RA3020 30 x 20 Bypass Damper VAV SVN03A EN kb VariTrac Changeover Bypass System Figure 2 VariTrac Changeover Bypass System Configuration Bum 40SU S OBA PZ n WUWO y 9497 puo Z JUI SUOIEOIUNUILUOQ wn x x pu B 1 Josuas uoz J duieq suoz oe UPA Ajquuesse l
43. ire per Trane specifications w Do not apply voltage to the priority shutdown and occupancy inputs Shield termination Example of Comm5 communication link wiring Contact points See product specific literature for Comm5 wire connection details Earth ground shtoi og Shield ground VAV SVN03A EN 17 Getting Started TRANE AC Power Wiring A dedicated 24 Vac 30 VA Class 2 transformer is required to power the VariTrac Central Control Panel The VariTrac Central Control Panel requires 3 wire service with a nominal voltage of 24 Vac and a utilization range of 20 to 30 Vac All wiring must comply with the National Electrical Code and local codes The 24 Vac line can enter the VariTrac Central Control Panel cabinet through the 4 in x 4 in knockout or through the knockouts in the top of the panel Figure 3 shows the 24 Vac conduit entry holes Connect the 24 Vac power wires toTB2 1 andTB2 2 and the ground wire from the circuit breaker panel ground to TB2 3 as shown in Figure 6 Use copper conductor wire only AC Power Checkout After the 24 Vac connections have been made atTB2 apply AC power by closing the circuit breaker for the Class 2 transformer Measure the voltages atTB2 The voltage between e TB2 1 andTB2 2 should be 20 to 30 Vac e TB2 1 andTB2 3 ground should be 20 to 30 Vac TB2 2 andTB2 3 ground should be 20 to 30 Vac IMPORTANT The 24 Vac power supplies must not be used
44. l should be mounted at a convenient level and located where it will be easily accessible If possible locate the CCP near the controlled equipment to reduce wiring cost Operating Environment The VariTrac Central Control Panel is designed for indoor use only It should be located in a dust free and corrosive free environment and within a range of 32 to 120 F and 10 to 90 percent humidity non condensing Clearances Mount the VariTrac Central Control Panel on any vertical flat surface The CCP is approximately 8 75 inches high 10 25 inches wide and 2 75 inches deep VAV SVN03A EN TRANE VAV SVN03A EN Secure Termination Module to Wall The VariTrac Central Control Panel should be easily accessible for making wiring connections and for servicing Provide two inches of clearance on the left and right sides and sufficient clearance above the unit to make conduit connections Sufficient space should be available in front of the unit to making wiring connections and perform maintenance Figure 4 Dimensions for VariTrac Central Control Panel Components Top view 10 25 in 2 75 in 26 04 cm 6 99 cm E mur 8 75 in 22 38 cm Front view Side view 1 SAS w D Bottom view Secure Termination Module to Wall 1 Mark the location
45. le e Install operator display optional Connecting modem devices IMPORTANT The CCP is designed to work with UCM III and IV VariTrac damper and VariTrane VAV controllers produced beginning January 1995 If any other dampers are used especially on a retrofit job please consult the factory to confirm VariTrac Central Control Panel compatibility prior to installa tion Unpack and Inspect the Components Inspect components for damage Match each component to the packing list to ensure that nothing was lost during shipment Make sure that the litera ture is not lost or discarded with the packing material Visually inspect the central control panel for damage All components are thoroughly inspected before leaving the factory Any claims for damage incurred in shipping must be filed with the carrier 13 Getting Started 14 TRANE Mount the Wiring Base Figure 3 Termination module conduit access and mounting holes Conduit access Conduit connector three places Holes for mounting on a 2 in x 4 in conduit box horizontally left and right Two holes for mounting on a wall one on each side Termination board Holes for mounting on a 2 in x 4 in Holes for mounting on a conduit box vertically 4 in x 4 in conduit box Jamb nut top and bottom four corners attaches to conduit connector Mounting Requirements Location The VariTrac Central Control Pane
46. lines 51 Tests andTroubleshooting 52 VAV SVN03A EN TRANE VAV SVN03A EN Delivered VAV System Overview What is Delivered VAV Delivered VAV is a small tonnage VAV system made up of three Trane prod uct families It is the combination of e Voyager Commercial 27 1 2 to 50 ton VAV Packaged Rooftop Unit e Up to 32 VariTrane VAV boxes with DDC Controls e VariTrac Central Control Panel with Operator Display Delivered VAV will only work with this combination of Trane products It will not support any other types of equipment The Voyager Commercial 27 1 2 to 50 ton rooftop unit must be a VAV model with factory installed inlet guide vanes or variable frequency drive micro processor controls and Trane Communications Interface Delivered VAV will support up to 32 VariTrane VAV boxes with the DDC controls option They may be single duct boxes or fan powered boxes and may have a factory installed local heat option if desired The heart of the system is the VariTrac Central Control Panel with Operator Display The CCP acts as the communications hub of the system It is responsible for coordinating the actions of the VAV rooftop and the actions of the VAV boxes with each other to meet the comfort requirements of the zones As in any other application the Voyager Commercial VAV unit runs the supply fan at full constant volume whenever it goes into the heating mode with all the VAV boxes commanded to maximum fl
47. m rated Communication link wiring must be Level 4 22 AWG twisted shielded pair wire with stranded tinned copper conductors Maximum total wire length is 3500 feet Wire must meet Trane specifications See Table 1 Communication Link Wire Specifications Communication Link Wiring Relay Board Binary Outputs Voltage provided 24 Vac from air conditioning unit Current 10 VA maximum Wire Specifications Shielded Level 4 communication wire is now recommended for all commu nication link wiring on the new VariTrac CCP This is the same wire which is recommended for the Tracker Version 10 Comm5 communication link The term Level 4 is used to specify a particular performance of communi cation wire and is normally associated with LonTalk Level 4 wire is differ ent from Category IV four wire and Category V five wire The specification information for Level 4 wire can be found in the LonVVorks FTT 10A Free Topology Transceiver User s Guide at www echelon com Shielded Level 4 communication vvire can be purchased from two qualified suppliers VVindy City VVire and Connect Air VAV SVN03A EN 11 Specifications TRANE Table 1 Communication Link Wire Specifications 22 AVVG Conductors Shielded Level 4 Plenum CMP Rated Number of Cond 1 pr dacket Color light blue Cond Strand 7 30 Nom Jacket thick inch 0 009 Nom Jacket thick wall in 0 015 Nom OD inch 0 176 Weight per MFT 22
48. nd Configuring the System Installation and configuration information including an installation check list AboutThis Manual TRANE Naming Conventions The following is a list of naming conventions used in this manual e CCP Refers to the system Central Control Panel e VariTrac Refers to the CCP used in a pressure dependent bypass zoning system Delivered VAV Refers to the CCP used with a Commercial Voyager VAV rooftop unit and VariTrane pressure independent VAV boxes e VAV Variable air volume Cautionary Statements The following cautionary statements signal procedures or conditions that require particular attention AWARNING Indicates a potentially hazardous situation which if not avoided could result in serious injury or death ACAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Indicates a situation in which property damage only accidents could occur It is also used to alert against unsafe practices IMPORTANT Alerts installer servicer or operator to potential actions that could cause the product or system to operate improperly but will not likely result in potential for damage Related Literature VAV SVX01B EN UCM 4 0 and Wireless VAV Communication VAV SLB006 EN Zone Occupancy Sensor VAV SLB007 EN Digital Display Zone Sensor VAV SLB008 EN Zone and Duct CO Sensor VAV SVP01A EN VariTrac Operator s Guide
49. of the two mounting holes on the wall 2 Setthe termination module aside and drill mounting holes 3 Secure the termination module to the wall with the supplied hardware 10 x 1 in screw with plastic anchor 15 Getting Started TRANE Secure Termination Module to Conduit Box 1 Remove the screws from the conduit box 2 Line up the conduit box screw holes on the termination module Figure 3 with the screw holes on the conduit box 3 Install the screws NOTE When mounting the termination module to a 4 in x 4 in conduit box remove the plastic cover over the box for easier access Do not attempt to break away excess plastic Use a hack saw blade and carefully cut away the plastic Install VariTrac CCP Relay Board 1 Separate the main module and front panel from the termination module 2 Remove the relay board from its packaging 3 Orient the relay board so that its 20 pin socket connector faces left see Figure 5 4 Slide the left edge of the board underneath the catches on the left side 5 Rotate the board to the catches on the right side 6 Snap the board into place by pressing on the terminal block or on the right side of the board Figure 5 Installing Optional Relay Board aja ri W S L Q s e e m 11
50. on Link Wiring Varilrac Communications Interface Comm4 Comm Termination Details for Voyager RTU 2 5 I Voyager UPC TRANE ROOFTOP UNIT Unit Control Panel TRANE COMMUNICATION INTERFACE LOCATED BOTTOM CENTER OF RTU CONTROL PANEL E ECONOMIZER POWER MISC UL TCI V NUT amp TAPE HEAT 2 LI H UL sys o d o o Fis 2 Figure Notes TO COMMa DEVICES 1 All dip switches off 2 Comm board to non isolated Comms or Comm4 option VAV SVN03A EN 61 Getting Started 62 VAV SVN03A EN TRANE VAV SVN03A EN Installation Checklist Complete this checklist as the VariTrac Central Control Panel is installed to verify that all recommended procedures are performed This checklist does not replace the detailed instructions provided in the manual Read the entire manual carefully to become familiar with the installation procedures before installing the unit Shipment O Inspect VariTrac Central Control Panel for shipping damage File claim if necessary O Inspect VAV terminal units and accessories for shipping damage File claim if necessary Unit Location O Install VariTrac Central Control Panel in environment that meets tempera ture and humidity requirements O Securely mount VariTrac Central Control Panel on wall at an accessible location with proper clearances AC Power Wiring O Field installed AC power wiring complies with all applicable
51. or from J3 e System displays static pressure failure Input a resistance value between 9 4K and 10 5K across terminalsTB3 6 andTB3 7 System returns to normal operation VAV SVN03A EN TRANE VAV SVN03A EN Static Pressure Sensor Input Test Static Pressure Sensor Input Test In order to perform this test a voltage between 0 25 Vdc and 0 7 Vdc must be present at J3 pins 2 and 3 This voltage is from the pressure transducer in the communicating sensor bypass control If system pressure is insufficient to create at least 25 Vdc apply pressure to the transducer with an alternate pressure source ACAUTION Do not over pressurize the transducer The maximum pressure signal should not exceed 2 inches H20 When the voltage is between 0 25 Vdc and 0 7 Vdc the static pressure failure clears Binary Output Test The relay board binary outputs may be manually controlled from either the operator display or the PC software Great care must be taken when manually controlling these relays There are NO minimum on off timers or safe guards in effect during test mode See the CCP operator guide for complete description of the binary output test AWARNING This test can energize the fan and both stages of heating and cooling at the rooftop unit Before starting this test make sure that all persons tools etc are clear System Troubleshooting Contact yourTrane representative for problems that cannot be resolved using these guide
52. or the communication link must meet the following requirements All wiring must be in accordance with the National Electrical Code and local codes Communication link wiring must be Level 4 22 AWG twisted shielded pair wire meets or exceeds Trane specifications See wiring specifications sections in this manual for further information e The maximum total wire length is 3 500 feet for the communication link At the VariTrac Central Control Panel the communication link wires must be connected to Terminals 2 10 andTB2 11 Refer to Figure 17 This connection is polarity sensitive IMPORTANT Connections between lengths of link wiring should be soldered and taped Wire nuts are not acceptable ACAUTION Connecting the communication link with reversed polarity will lead to system malfunction and possible equipment damage The shield on the communication link wiring must be connected toTB2 12 The shield wire should be spliced with the shield from the next section of communication link wiring at every junction Tape each splice to prevent any contact between the shield and ground The shield should be cut and taped back at the end of the link Communication link wiring cannot pass between buildings IMPORTANT Improper communication link shield connections will lead to system malfunction IMPORTANT Improper communication link routing will lead to system malfunction Connect UCMs on the communication link in
53. otely for example perimeter heat or by terminal reheat either electric or hot water coils Parallel Fan Powered Parallel fan powered units are commonly used in VAV zones that require some degree of heat during occupied hours when the primary supply air is cool The terminal unit fan is in parallel with the central unit fan no primary air from the central fan passes through the terminal unit fan The terminal unit fan draws air from the space return plenum Series Fan Powered Series fan powered terminal units are used commonly in VAV zones that not only require heat during occupied hours but also desire constant air vol ume delivery The terminal unit fan is in series with the central fan Primary air from the central fan always passes through the terminal unit fan 55 Delivered VAV System 56 TRANE The local series fan vvithin the terminal unit operates vvhenever the unit is in the occupied mode The volume of air delivered to the VAV zone is constant but the temperature of the delivered air varies As the zone requires less cooling the primary air damper closes As the primary air damper closes the air mixture supplied to the zone contains less cool air and more vvarm plenum air Remote heat or terminal reheat can provide additional local heating Auxiliary Temperature Sensor The auxiliary temperature sensor allows the operator to monitor air tem perature leaving a reheat device or measure duct temperature for
54. ow For this reason the unit heat is only used for the Morning Warm up and Daytime Warm up modes available on the Voyager Commercial unit In both of these modes the VAV boxes are commanded to maximum flow If individual zone heat ing is required during normal daytime operation a local heat source must be provided at the box What Delivered VAV is Not Delivered VAV is not changeover bypass VAV It is a true pressure indepen dent VAV system The fact that we utilize the VariTrac Central Control Panel as the heart of the system does not make it a VariTrac system There is no bypass damper in this system Additionally Delivered VAV will only work with the combination of the Voyager Commercial VAV unit VariTrane VAV boxes with DDC controls and the VariTrac CCP with Operator Display It will not support any other types of equipment 53 Delivered VAV System Figure 24 Delivered VAV System Configuration BULA 10SU S ODA yanan WULUOD y A81 PUOO Z AUN SUOIJEODIUNULUOQ wen pu B 1 401 OG 01 Z L ZZ h n AWA EWW J9aBe on JOSU8S uoz e dsiq 10 e18d0 AA I8ueq 01 U09 I5nu 981 UBA Ca ss VAV SVNO3A EN 54 TRANE VAV SVN03A EN Central Control Panel Central Control Panel The VariTrac Central Control Panel is the central source of communications and decision making betw
55. perate properly VAV SVN03A EN TRANE Terminal Connection Chart Sensor UCM Field VVire TB1 TB3 F Color Code 1 1 2 2 3 3 4 5 Figure Notes 1 Shield must be spliced with other communication link shields 2 Shield must be cut back and taped at sensor NIGHT SETBACK OVERRIDE OPTION ADJUSTABLE SETPOINT OPTION COOLER COMM 1 gt COMMUNICATIONS JACK gt gt VAV SVN03A EN SENSOR 10 KQ O 77F Zone Temperature Sensor Wiring 2 3 wires are required for sensor connection 2 wires are required for 24 Vac power connection For wire lengths less than 75 feet an 18 gage 5 conductor cable may be used For wire lengths greater than 75 feet use 18 gage 2 conductor cable for the power wiring TB1 TB1 and 18 gage 3 conductor cable for signal wiring TB2 TB3 Figure 15 Zone Temperature Sensor Controller Wiring ACT HIP Eses esse ee q Address DDC UCM Control Board Optional Field Mounted Aux Temp Sensor TEMPERATURE Optional COMMUNICATIONS HIGH COMMUNICATIONS Optional LOW 31 Getting Started 32 TRANE Communication Link Wiring The VariTrac Central Control Panel communication link TB2 10 11 and 12 connects the CCP UCM dampers communicating sensor bypass damper control assembly and Voyager Reliatel rooftop units Field vviring f
56. qe Bunoauuos m J duieq ssed g EOL 19181194 10 JaBeAon Wi 9ueg 0 1402 211499 981 UEN ES JOUIOJSUCI OBA VI Alqus ssy 0 1402 ssedgjiosuag S 74 5 TRANE VAV SVN03A EN Specifications VariTrac Central Control Panel 20 30 Vac 60 Hz single phase 30 VA Power Requirements minimum Class 2 transformer required 32 F to 122 F 10 to 90 relative Operating Environment humidity non condensing 40 F to 185 F 5 to 95 relative Storage Environment humidity non condensing NEMA 1 resin enclosure plenum Mount directly on wall surface or mount on recessed 4 in x 4 in conduit box 8 75 in high x 10 25 in wide x 2 75 1 5 pounds Communication link wiring must be Level 4 22 AWG twisted shielded pair wire with stranded tinned copper conductors Maximum total wire length is 3500 feet Wire must meet Trane specifications See Communication Link Wire Specifications Voltage provided by VariTrac CCP 10 to 14 Vdc Current provided by VariTrac CCP Binary Input 10 to 14 mA Note Only dry contacts may be attached to binary inputs The VariTrac Central Control Panel is UL Approval UL approved Upon a power loss all operator Memory Back edited data stored in the VariTrac ry up Central Control Panel is maintained permanently Communication Link Wiring Specifications 10 Operator Display
57. r Addresses DIP Switch Settings QT fa 4 p 81 leed o N alo o co O olololo ololololololololololololo 2 212 2 212 2 212 2 212 21212 212 Ninin gt NI I ol o N wm o z 2 2 ziz ziz 2 2 2 R o o o Oo Bi o Bio z El E EI E EB E Addresses 25 32 used Sei VAV only N N N o lo o z ojo 212 2 ziz lt ojo 2 w o 00 2 Communicating ay pz Control only Off Jal f Example of Address 5 Slaved Dampers In some applications it may be desirable to control an additional damper from a single UCM The slaved damper does not require a UCM circuit board For this reason a model BYPS damper is paralleled directly to the VAV SVN03A EN TRANE Close Slaved Dampers outputs of the UCM controlling the primary damper by using the BYPS damper cable assembly shipped with the BYPS damper Refer to diagram and connect as follovvs 1 Disconnect the red actuator plug from the master damper UCM 2 Plug the red actuator connector from the BYPS damper onto the master damper UCM socket ACT as shown in Figure 13 3 Reconnect the master damper actuator s red connector to the spare connector socket pigtailed on the BYPS damper cable assembly 4 If cable assembly needs to be extended cut and splice additional vvire on the BYPS damper end ofthe cable Figure 13 VViring for Slaved Damper Open Hot A
58. r to mount ing and removing the operator display After mounting the main module attach the operator display e Tilt the top of the operator display about 30 degrees towards you VAV SVN03A EN 37 Getting Started 38 TRANE e Align the three tabs on the bottom of the display with the slots in the bottom of the main module Figure 21 e Starting with the center tab insert the tabs into the slots Figure 21 Install operator display IMPORTANT Do not use excessive force when mounting the module If the module does not snap easily into place slightly reposition it on the alignment pins Failure to comply may cause damage to the module Push the top of the display module toward the main module until it snaps into place If 24 Vac is applied the operator will turn on and display data Connecting Modem Devices Remote communications may be accomplished through aTrane building management system or with stand alone modem attached to a single CCP via the RS 232 port A US Robotics Sportster fax data external modem is recommended for CCP applications Modems require hardware and software configurations for use with the CCP Physical connection of the modem to the VariTrac Central Control Panel is shown in Figure 22 VAV SVN03A EN TRANE VAV SVN03A EN Termination module bottom view Connecting Modem Devices Figure 22 Modular Adapters Cable and Connections for External Modems
59. ressure source and Magnahelic gauge Record the zero flow volt age Connect a low pressure source and Magnahelic gauge to the hi port of the transducer Input 1 inch of pressure The voltage should be approximately 0 750 Vdc greater than the zero flow voltage The reading on the voltmeter will include the zero flow voltage ACAUTION Do not exceed 2 inches of input pressure to avoid damaging the tranducer Signal change must be 0 10 Vdc minimum or a AHU air flow failed message vvill be displayed Zone Auxiliary and System Temperature Sensor Checkout If temperature is reported to the UCM or CCP seems wrong use the temperature resistance table Table 4 to verify the integrity of the adiustable setpoint potentiometer or the sensor Measure resistance across the terminals the device is connected to For details of terminal connections see the Installation and Wiring section of this manual VAV SVN03A EN TRANE VAV SVN03A EN Zone Auxiliary and System Temperature Sensor Checkout Table 4 Temperature Resistance Table Tem Thumbwheel Sensor p Resistance Resistance 241000 170000 121000 88000 64000 47000 35000 26000 20000 49 Tests andTroubleshooting 50 TRANE UCM Local Heat Checkout Turn the adiustable zone sensor to full heating or adiust the temperature setpoints at the CCP IMPORTANT Model DCEA local heat outputs are disabled in the heating control action Model DCWA local h
60. ss control in this manual The following conditions create a static sensor calibration failure e No UCMs are communicating e No UCM can be driven to MAX due to group level overrides Zero static reading was not in the range of 0 15 to 0 45 Vdc High flow static reading is less than 0 10 Vdc greater than the zero static reading Fan does not run during the start up calibration sequence Design static pressure value is too low Bypass damper s are operating incorrectly Discharge Air Temperature Sensor Failure If the discharge air temperature sensor fails the CCP issues a priority shutdown command e All zone dampers drive to maximum e Bypass damper drives to 50 percent e Fan and all stages of heating and cooling are de energized This failure appears in diagnostics on the operator display and PC software A shorted or open temperature sensor or failed communicating sensor bypass control is the cause Communication Failure If communications fails no UCMs communicating the CCP De energizes the fan and all stages of heating and cooling e Drives the bypass to 50 percent Individual UCM communications failures are displayed in diagnostics on the operator display and PC software Check all wiring connections and polarity See the Communications Troubleshooting section in this manual for details 47 Tests andTroubleshooting 48 TRANE If the zone sensor fails the damper drives to minimum position and its vo
61. te is excluded Zone Sensor Failure Zone Setpoint Failure f a setpoint fails the UCM automatically uses the edited occupied cooling and heating setpoints Auxiliary Sensor Failure If the auxiliary sensor circuit opens the temperature reading on the display screen reads and a diagnostic is be displayed on the operator display and PC software If the auxiliary sensor is used on a stand alone UCM to establish the control action the UCM remains in the current control action Static Pressure Sensor Troubleshooting The static pressure sensor signal enables the CCP to recognize system static and adjust the bypass damper accordingly f a problem exists with the sensor or its location the bypass damper controls with default values Ifa failure persists perform the following 1 On the communicating sensor bypass control UCM read the voltage across J3 1 green wire and J3 3 red wire Voltage should be between 4 50 Vdc and 5 50 Vdc 2 Read the transducer output voltage across J3 1 green wire and J3 2 black wire Voltage should be between 0 20 Vdc and 0 45 Vdc Record the zero flow voltage 3 Wait approximately 4 minutes after power up for the system fan to start Read the transducer output voltage again across J3 1 green wire and J3 2 black wire The difference between this voltage and the zero flow voltage should be 0 10 Vdc minimum 4 If a defective transducer is suspected check the output voltage with a low p
62. the temperature sensor See Figure 15 4 Replace the sensor cover Zone Temperature Sensor Wiring A zone temperature sensor designed specifically for UCM damper control must control each unit Field vviring for the zone temperature sensors must meet local code If local codes require enclosed conductors the zone tem perature sensor vvires should be installed in conduit Do not route zone temperature sensor vvires in conduit with 24V or any other high povver conducting vvires Different numbers of conductors are required based on the zone temperature sensor used The following table lists the options and number of vvires required Table 3 Zone Sensor Options Zone Sensor Option Sensor only Sensor with adjustable setpoint Sensor with night setback override and cancel buttons Sensor with adjustable setpoint and night setback override and cancel buttons Sensor with LCD display and adjustable setpoint and night setback override and cancel buttons Number of Required 1 Some sensors have a communication jack available as an option If these jacks are used they must be wired to the UCM using a separate two conductor shielded cable that meets the specification for communication link wiring Tape back the shield of the communication link if used at the zone temperature sensor and splice the other end into the adjoining communication link shield The communication jacks do not need to be wired for the system to o
63. trol TeSt 50 Supply Air Temperature Input Test 50 Static Pressure Sensor Input Test 51 Binary QutpUt Test uu uuu dc did li 51 System Troubleshooting naar rnnnnnnns 51 VAV SVN03A EN ili Delivered VAV System 1 53 OVE EW ere um EEN apup did 53 What is Delivered VAV 53 What Delivered VAV is EEN 53 Central Control Panel dd ic 55 Unit Control Module UCMJ a 55 VariTrane VAV Terminal Units EEN 55 VariTrane VAV Terminal Unit Types EN 55 lte ER EE 55 Parallel Fan Povvered EEN 55 Series Fan Powered 55 Auxiliary Temperature Sensor 56 Zone Temperature Sensors 56 CO ET Ea en o hice T 56 OCCUPANCY Sensor n n s s n 56 Dieplay e a nn 56 Getting Started 57 Installing the Central Control Panel 57 Install Vari Trane VAV Terminal Units E 57 Connect UCM WITING uu an die 57 Ser UCM DIP Switches u u da 57 Installing Zone Temperature Sensors s nessen nnn 57 Communications LinkWiring E 57 Installation Checkdlist 63 Gill el incita ida iii 63 UnitLocatiO ida 63 AG Power WAITING start a
64. tromagnetic Immunity VVhen and vvhere issued 4 3 2001 4 17 2001 Electromagnetic Emission Electromagnetic Immunity Saint Paul Minnesota USA Mark of Compliance EN 50081 1 1998 Radiated EN55022 1998 Class B limit Conducted EN55022 1998 Class B limit EN61326 1 1997 A1 1998 EN61000 4 2 4 kV contact discharge 8 kV air discharge EN61000 4 3 3 V m EN61000 4 4 1kV EN61000 4 5 1kV EN61000 4 6 3V EN61000 4 8 30 A m EN61000 4 11 1 cycle 100 za Bounheng Saycocie Design Compliance Engineer European Contact Societe Trane Epinal France 1 rue des Ameriques B P 6 F 88191 Golbey Cedex France Phone 33 329 31 73 00 Fax 33 329 81 24 98 This document validates CE conformity of the VariTrac CCP controller VAV SVN03A EN TRANE VAV SVN03A EN VariTrac Changeover Bypass System Overview VariTrac Changeover bypass VAV is a comfort system solution designed for light commercial applications As the name implies these systems deliver a varying volume of air to multiple zones each with its own thermostat while still utilizing a unitary machine with a constant volume fan Changeover bypass VAV combines the comfort benefits of VAV with the cost effective ness and simplicity of packaged unitary equipment Central Control Panel The VariTrac Central Control Panel is the central source of communications and decision making between the individual zones and the air conditioning unit
65. vanized steel frame and opposed blade damper assembly VariTrac Changeover Bypass System Communicating Sensor Bypass Damper Control The communicating sensor bypass damper assembly is a bypass damper and communicating sensor bypass control that resides on the same bus as the VariTrac dampers and Voyager Reliatel rooftop unit VariTrac Bypass Damper Bypass dampers are non communicating VariTrac dampers which include an integrated actuator with a pre wired interconnect cable that plugs into the communicating sensor bypass control round bypass damper sizes are 6 8 10 and 12 inches The damper con sists of an 18 gage galvanized steel frame with a round damper blade assembly The round bypass damper operates in duct static pressures up to 1 75 inches wg e rectangular bypass damper sizes are 14 x 12 16 x 16 20 x 20 and 30 x 20 inches The damper consists of a 13 gage galvanized steel frame and opposed blade damper assembly The rectangular bypass damper oper ates in duct static pressures up to 2 00 inches wg Communicating Sensor Bypass Control The Communicating Sensor Bypass Control is composed of an integrated UCM board static pressure and discharge air temperature sensors It directly controls the bypass damper and communicates duct conditions to the central control panel The static pressure sensor measures duct static pressure and positions the bypass damper s to maintain the static pressure setpoint The discharge

Trane VariTrac Dampers Installation and Maintenance Manual

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