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Trane Dual-Duct Installation and Maintenance Manual

1. CONTROL BOX L SHIELDED TWISTED PAIR LUE DER COMMUNICATIONS WIRING OPTIONAL FACTORY INSTALLED WIRELESS OPTIONAL FIELD INSTALLED r CO2 SENSOR CaS SS SS emen genet TB3 5 6 lt 5 R HOT 2 1 1 24 O COMMON _ _ TB4 1 BIP WARNING 22 TB1 1 24VAC HAZARDOUS VOLTAGE TB1 2 GND DISCONNECT ALL ELECTRIC POWER NOTCONNECTED INCLUDING REMOTE DISCONNECTS AND FOLLOW LOCK OUT AND TAG PROCEDURES OPTIONAL FIELD INSTALLED OPTIONAL BEFORE SERVICING INSURE THAT ALL OCCUPANCY SENSOR I AUX TEMP SENSOR MOTOR CAPACITORS HAVE DISCHARGED 1 FACTORY WIRING EE FIELD WIRING OPTIONAL ALTERNATE WIRING 2 1 4 QUICK CONNECT REQUIRED FOR ALL FIELD CONNECTIONS lt 3 ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL Cx THE OPTIONAL BINARY INPUT CONNECTS BETWEEN 4 1 BIP AND 24VAC HOT FROM TRANSFORMER THE BINARY INPUT CAN BE RECONFIGURED AS AN OCCUPANCY INPUT VIA THE COMMUNICATIONS INTERFACE AS SHIPPED THE AUX INPUT IS CONFIGURED AS AN AUX TEMP INPUT THE AUX INPUT CAN BE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE lt S TERMINAL NOT TO BE USED WIT
2. ELA oCTRICA INCLUSO LAS DESCONEXIONES REMOTAS Y SIGA LOS PROCEDIMIENTOS DE CIERRE Y ETIQUETADO ANTES DE PROCEDER AL SERVICIO ASEG SRESE DE QUE TODOS LOS CAPACITORES DEL MOTOR HAYAN DESCARGADO EL VOLTAJE ALMACENADO PARA LAS UNIDADES CON TRANSMISIA N DE VELOCIDAD VARIABLE CONSULTE LAS INSTRUCCIONES PARA LA DESCARGA DEL CONDENSADOR EL NO REALIZAR LO ANTERIORMENTE INDICADO OCASIONAR LA MUERTE O SERIAS LESIONES PERSONALES Wiring harness wire identification continued Wire Label Color Function Wire Label Color Function HEATING SET N A Not used For future use 24 VAC DC Blue 24 VAC Vdc power FAN SYSTEM N A Not used For future use GND POWER Yellow Ground for 24 VAC dc SETPOINT Red Space temperature setpoint COMM N A Not used For future use ZONE White Zone temperature COMM N A Not used For future use GND SIGNAL Black Ground for setpoint and zone signal Note Both GND SGNAL and GND POWER must be wired for the receiver to operate See Figure 3 p 14 Figure 4 p 15 Figure 5 p 16 VAV SVX01D EN 21 Wireless Zone Sensor Replacing and Securing the Receiver Cover 1 To replace the receiver cover on the base plate hook the cover over the top of the base plate Apply light pressure to the bottom of the cover until it snaps in place 2 fnecessary to keep the cover securely attached install the security screw into the bottom of the receiver Figure 10 p
3. replaces Every Ware service software Note For Instructions on howto use Rover Commd4 refer to the Rover Commd4 online Help by clicking Contents and Index on the Help menu Laptop Requirements and Complete Connection Instructions For instructions on connecting a PC laptop to a Comm4 link refer to the Installing Rover Service Tool Version 5 0 3270 3275 Note A hard copy of this document is in the Rover package and an electronic copy Installation pdf can be found on the Rover installation CD ROM To connect to Comm4 Link 1 Insert the Comm4 card in the PC laptop 2 Connectthe cables as shown in the appropriate figure See Figure 15 p 24 for connecting to a Comm4 controller through a zone sensor and Figure 16 p 25 for Connecting a Comm4 controller using alligator clips Note Make sure to maintain polarity Figure 15 Connecting to Comm4 controller through a zone sensor Adapter cable Z 7 24 Rover Service too Comm4 PCMCIA card VAV SVX01D EN TRANE UCM Programming and Operation Figure 16 Connecting to Comm4 controller using alligator clips Rover Service too Comm4 PCMCIA card Adapter cable RJ11 plug 3 Double click the Rover icon on the laptop PC desktop The Rover Service Tool screen will appear 4 Double click on the Comm4 Service Tool icon to access Comm4VAV UCM This tool al
4. 5 Files of lupe gt Cancel 37 TRANE Sequence of Operations Chapter Overview This chapter contains information about the following Single Duct Units e Override Conditions Single Duct e Fan Powered Units e Parallel Fan Powered Units e Override Conditions Parallel Fans Series Fan Powered Units e Override Conditions Series Fan e Zone Sensor Functions e Flow Sensor e Failure Modes Single Duct Units When the UCM control action is COOL the UCM controls the modulation of the air valve as a cooling source to maintain the active cooling set point Airflow is varied between the minimum and maximum flow set points to maintain temperature set points A PI control algorithm is utilized to minimize the measured difference between the active zone set point and the actual zone temperature Itis possible forunits to utilize electric or hot water heating coils to maintain temperature set points After the temperature loop calls for minimum cooling flow and the zone temperature is at or below the heating set point these units shall control to their respective Minimum Heating Flow Once this Minimum Heating Flow is established heat is allowed to operate according to the Heat Control Type specified for the controller For electric heat units this heating minimum flow set point must be at or above 20 of the unit cataloged airflow Electric heat may be pulse width modulation or staged
5. OPTIONAL FIELD INSTALLED e DIGITAL DISPLAY ZONE SENSOR OPTIONAL FIELD INSTALLED L CO2 SENSOR 1 WARNING oe 46 e SENS EE HAZARDOUS VOLTAGE ZONE SENSOR OPTIONAL WIGDMELIACK CONTACTOR S DISCONNECT ALL ELECTRIC POWER AUX TEMP SENSOR i DAVAC 19V INCLUDING REMOTE DISCONNECTS AND S e S 2 REMOTE MTD MAXICOIL FOLLOW LOCK OUT AND TAG PROCEDURES a BEFORE SERVICING INSURE THAT ALL OPTIONAL us STORED VOLTAGE UNITS WITH VARIABLE NOTE OPTIONAL FIELD i NL dca iod REPE 1 SPEED DRIVE REFER TO DRIVE 1 FACTORY WIRING INSTALLED ZONE SENSOR Moses hate Se Se ge ree at INSTRUCTIONS FOR CAPACITOR DISCHARGE SS Se FIELD WIRING EL GG DX C LI FAILURE TO DO THE ABOVE COULD RESULT IN DEATH OR SERIOUS INJURY OPTIONAL OR ALTERNATE WIRING do Mono at 35 06 1 N AVERTISSEMENT 2 1 4 QUICK CONNECT REQUIRED FOR ALL FIELD CONNECTIONS lt 3 ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL lt 5 THE OPTIONAL BINARY INPUT CONNECTS BETWEEN TB4 1 BIP AND 24VAC HOT FROM OPTIONAL FIELD INSTALLED ON OFF WATER VALVE 12VA TRANSFORMER THE BINARY INPUT CAN BE RECONFIGURED AS AN OCCUPANCY INPUT
6. Important Environmental Concerns Scientific research has shown that certain man made chemicals can affect the earth s naturally occurring stratospheric ozone layer when released to the atmosphere In particular several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine Fluorine and Carbon CFCs and those containing Hydrogen Chlorine Fluorine and Carbon HCFCs Not all refrigerants containing these compounds have the same potential impact to the environment Trane advocates the responsible handling of all refrigerants including industry replacements for CFCs such as HCFCs and HFCs Important Responsible Refrigerant Practices Trane believes that responsible refrigerant practices are important to the environment our customers and the air conditioning industry All technicians who handle refrigerants must be certified The Federal Clean Air Act Section 608 sets forth the requirements for handling reclaiming recovering and recycling of certain refrigerants and the equipment that is used in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the applicable laws and follow them 2014Trane All rights reserved AWARNING Proper Field Wiring and Grounding Required Failure to follow code could result in death or serious injury All field wiring MUS
7. VAV SVX01D EN In Rover the setpoints can be viewed at the UCM Setpoints tab and then also changed by selecting the Configure button Following are descriptions of each line on the UCM Setpoints tab Heating Setpoints Active The set point cannot be edited and reflects the set point currently being used for Heating temperature control Occupied Set points have a range of 30 0 F 100 0 F 1 1 C 378 C If a zone sensor thumbwheel set point is not being used this set point will be used as the UCM s active heating set point during occupied times The cooling set point must be greater than or equal to the heating set point plus 2 0 F 1 1 C Note Occupied cooling and heating set points must be set within the cooling set point high limit and the heating set point low limit in order to control to the proper set points Unoccupied Set points have a range of 30 0 F 100 0 F 1 1 C 378 C This heating set point is used when the UCM is unoccupied The unoccupied heating set point must be less than or equal to the unoccupied colling set point minus 2 F 1 1 C The unoccupied cooling set point must be greater than or equal to the unoccupied heating set point plus 2 0 F 1 1 C Low Limit This limit applies to the occupied mode only starting in UCM version 4 1 Prior to version 4 1 the limits would affect both the unoccupied and occupied setpoints The occupied heating set point is subject to high and low limits The coolin
8. racer Summit has the fan output disabled e Check group global and or Tracer overrides to make sure they are not inhibiting fan operation 4 A flow override exists locking out the fan output Check to make sureTracer or Rover has released disable override 5 IfVAV UCM is calling in the status menu for the Fan to on and itis not then check UCM Triac output wiring and Relay output Override damper open e Seeiffan cycles on Check J8 toTB1 2 Should have 24VAC if it does not measure the power input toTB1 1 power andTB1 2 ground of the UCM board The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability e Triac can be checked with purchasing a 24 VAC LED and see if it lights up on call for fan UCM if LED does not light up replace UCM Remove fan wires from UCM and apply 24 VAC directly to fan relay wires e Fanrelay should energize If it does not check wiring If wiring is OK replace fan relay NOTICE Equipment Damage UCM Outputs are switched to ground Do not jumper 24 VAC to J9 J10 or J11 because damage will occur 6 After all checks have been completed check motor fan winding integrity and bearing failure VAV Parallel Fan Failure Procedures In the event that the fan output is not energizing properly inspect the following 1 Verify the output configuration in the UCM setup menu e Unit
9. 7 Read airflow at the most remote unit In most systems this will be the VAV unit located furthest from the fan This will be the unit in the system that will be critical from an air delivery set point If airflow is adequate increase the supply fan CFM to achieve adequate airflow e fthe CFM is at or above design the system can now be balanced If the measured CFM is below design insure the VariTrane unit is in full cooling position e fthe air delivery through this VariTrane unit is still below the design requirements increase the supply fan CFM to achieve adequate airflow Note To increase supply fan CFM check to make sure VFD IGV are giving max output If not at max output adjust discharge static setpoint until at max output If already at max output then make the required adjustments to pulley sizes motor sizes and electrical connections to accommodate fan speed changes lf any adjustment have been made repeat step 2 fafter adjusting the fan to its maximum capacity there is still a shortage of airflow shut off part of the system to provide enough airflow to balance the other part of the system This can be done using Rover or the Override to Unoccupied command at the zone sensor 8 After determining that there is enough CFM for all zones drive all the VAV boxes to MIN Note If the boxes have already been assigned to groups and these groups are separate thermal zones then the balancin
10. FAILURE TO DO THE ABOVE COULD RESULT IN DEATH OR SERIOUS INJURY N AVERTISSEMENT TENSION DANGEREUSE COUPER TOUTES LES TENSIONS ET OUVRIR LES SECTIONNEURS DISTANCE PUIS SUIVRE LES PROCA DURES DE VERROUILLAGE ET DES A oTIQUETTES AVANT TOUTE INTERVENTION VA oRIFIER QUE TOUS LES CONDENSATEURS DES MOTEURS SONT 5 DANS LE CAS D UNITA oS COMPORTANT DES ENTRAAZNEMENTS VITESSE VARIABLE SE REPORTER AUX INSTRUCTIONS DE L ENTRAAZNEMENT POUR DA 0CHARGER LES CONDENSATEURS NE PAS RESPECTER CES MESURES DE PRA oCAUTION PEUT ENTRAAZNER DES BLESSURES GRAVES POUVANT ASTRE MORTELLES ADVERTENCIA iVOLTAJE PELIGROSO DESCONECTE TODA LA ELA 0CTRICA INCLUSO LAS DESCONEXIONES REMOTAS Y SIGA LOS PROCEDIMIENTOS DE CIERRE Y ETIQUETADO ANTES DE PROCEDER AL SERVICIO ASEGASRESE DE QUE TODOS LOS CAPACITORES DEL MOTOR HAYAN DESCARGADO EL VOLTAJE ALMACENADO PARA LAS UNIDADES CON TRANSMISI N DE VELOCIDAD VARIABLE CONSULTE LAS INSTRUCCIONES PARA LA DESCARGA DEL CONDENSADOR EL NO REALIZAR LO ANTERIORMENTE INDICADO PODR LIA OCASIONAR LA MUERTE O SERIAS LESIONES PERSONALES VAV SVX01D EN Troubleshooting Figure 45 Wiring diagram for fan powered unit that is either cooling only hot water or field installed reheat OPTIONAL FIELD INSTALLED PROPORTIONAL WATER VALVE jJ ADDRESS SWITCH zz 55 SHIELDED TWISTED P
11. Since there are many possible air balancing procedures keep in mind that these procedures are only suggestions Note Beforeperforming these balancing procedures the calibration command should be initiated at least 15 minutes prior to the balancing procedure System Checkout e Check the system installation for conformity to design Walkthe entire system from air handling equipmentto the terminal unitto determine variations of installation from the plans e Check for inadvertent obstructions in the ductwork such as closed fire dampers e Insure that any turning vanes filters and dampers both volume and fire are installed in the correct position There should bea 1 5 duct diameter long run of straight ducting into the VAV units inlet System Setup Setthe outside air dampers their minimum position e Start the supply and return air fan s e Before balancing the system ensure that there is enough CFM for all zones 6 Drive all VAV boxes MAX e Starting with each individual branch duct open all the VAV units in that branch duct to the maximum cooling position Note This can be done using Rover or EveryWare by giving each UCM a Drive Max command or by rotating the Zone sensor set point knob to the position and hold the TOV ON button for two seconds The damper will remain at its maximum 42 set point until the zone sensor knob is moved back into the normal operating range
12. This is the value subtracted from the cooling thumbwheel setpoint to derive the heating Figure 24 Setup tab Powered units Setup Tab Configuration File Setpoints Setup Wireless Advanced Configuration Unit Type VariTrac Rectangular n 12 Inches F Heat Type Mone Flow Override Auto Fan Parallel mi Local Heat Setpoint di Parallel Fan Control Flow Configuration Generic Cooling Flow Auxiliary Input coz Sensor gt Value 335 Voltage Ref 4 30 Present Value Measured Value Corection Factor 1 00 Wired one Temperature Wired Sensor Value glas Use Averaged gt Lalibration 0 0 Thermistar Vote 1 Outputs wired Thurmbwheel Setpoint 75 6 F Calibration Download The following are descriptions of each line on the Setup tab To make changes Select the Configure button in Rover and select the Setup tab Make adjustments if 30 Close Help necessary by opening a drop down arrow or changing a value and press the download button VAV SVX01D EN Other Fields Unit Type Select the proper unit type The unit type information is maintained in the controller s EEPROM Important Edit the unit type BEFORE editing any items on the above list Unit types available for all versions e VariTrane e Varilrac Round e Varilrane D e Generic Unit t
13. electric heat Staging hasthe following ON and OFF switch points UCM 3 3 and later allow hot water to turn on regardless of flow position Table 9 Set points Stage ON Switch point Off Switch point I 1 At the heating set point DISSE BOUE heating set point 2 1 F below the heating 0 5 F below the heating set set point point 3 2 F below the heating 1 5 F below the heating set set point point Hot water heat control may be either ON OFF or proportional ON OFF hot water is activated on the same schedule as staged of electric heat Utilization of the Heating Minimum Flow set point allows separate minimum flows to be active depending on whether or not the unit heat Is active 38 Override Conditions Single Duct The UCM occupied controls can be overridden by the following override commands Unoccupied If the control mode is unoccupied either as edited by software or as determined by the binary input the unoccupied cooling and heating temperature set points are used for temperature control Heat outputs remain active Heating Ifthe control action is edited to HEAT the UCM controls the air valve as a heating source rather than cooling Electric reheat is available the supply air temperature or auxiliary temperature is below 70 F Local hot water reheat is always available to keep the zone above the heating set point The Heating Minimum Flow Set Point will set the minimum flow Flow Cont
14. 1 Using a small screwdriver set the three rotary address switches locations 51 52 S3 on the sensor Figure 8 p 19 to the same address used for the receiver it is to be associated with Make a notation of the address and location where this sensor is to be mounted Note Do not use 000 as an address for installation If you set the address to 000 it will Remove all association knowledge Revert to a low power hibernation mode Send disassociation request to the receiver If the sensor and receiver are associated and communicating at the time the sensor is set to 000 and the Test button is pressed the receiver will also become unassociated and will be available for re association Read the switches from left to right in the order in which they are numbered S1 S2 S3 e Zero is at the 9 o clock position Make a notation of the address and location of the sensor Factory Wiring of the Receiver to the VAV UCM The required power for the receiver is 24 VAC or 24 Vdc and is less than 1 VA The receiver is designed to be powered by the VAV UCM controller Note A dedicated transformer is not necessary or 20 advised VAV SVX01D EN Wireless Zone Sensor Figure 9 Factory wiring of the receiver to the UCM NOT CONNECTED OPTIONAL FIELD INSTALLED BL 24VAC 60HZ OPTIONAL NEC CLASS 2 FACTORY WATER DAMPER INSTALLED Y VALV
15. 12VA max Operating Environments UCM 4 2 32 to 140 F 0 to 60 10 to 90 relative humidity non condensing Storage Environments UCM 4 2 40 to 150 F 40 to 65 6 C 10 to 90 relative humidity non condensing Mounting Typically the UCM 4 2 is factory installed However UCM 4 2 is available with retrofit kits in which case it must be field installed Tracer Summit and UCM 4 2 Communications Link Wiring Communications Link wiring must be 18 AWG twisted shielded pair wire Each conductor must be stranded tinned copper The maximum total wire length is 5 000 feet 1 524 m See UCM 4 2 Installation and Wiring p 11 for further information about wire selection UCM 4 2 Enhancements e The enhanced VAV UCM is backward compatible with VariTrane D boxes VXXD and VXXE VariTrac dampers and VariTrac Il dampers e UCM 4 2 adds support for operation with VariTrane Series F valves 4 turn blade dampers via 90 second drive time e UCM 4 2 adds a second C02 interfacing mode of operation to the auxiliary analog input TB3 5 This is a 1to 10 volt DC input with a mapping of input voltage to C02 output data value of 200 parts per million PPM of C02 per volt The use of this new auxiliary analog input as an interface to a C02 detector is mutually exclusive with the use of the input as auxiliary temperature input Therefore the use of the C02 interfacing mode of operation is not recomme
16. 22 Figure 10 Snap receiver cover on base plate and attach security screw Security screw Applying Power to the Receiver Restore power to the UCM Observe LED5 on the receiver Figure 11 p 22 It will light and stay constantly On when 24V power is normal 22 Figure 11 LED5 stays on after applying power to the receiver LED5 stays constantly On Receiver Indicates Readiness to Associate After initial power up the receiver conducts a channel scan for 10 seconds During this time the receiver selects from 16 available channels the clearest channel on which to operate LED1 LED2 and LED3 flash rapidly in succession round robin style while the channel scan is in progress Note Do notattempt association until the channel scan Is finished After the channel scan is finished LED3 will begin blinking one blink pattern to show that the receiver is ready to be associated with a sensor LED3 will stop blinking when association has been established Figure 12 p 22 Figure 12 LED3 blinks when the receiver is ready to be associated with a sensor LED3 LEDS will begin to blink after 10 seconds VAV SVX01D EN Powering the Sensor and Associating the Sensor to the Receiver 1 Verify the sensor is set
17. 65 VAV TERMINAL UNIT UCM4 Status Setpoints Setup Wireless Advanced Configuration TUCs VAVs 65 TERMINAL UNIT CUM Other Configuration Diagnostics Open Wireless Advanced Configuration Enter Service Mode Reset Heating Setpoints Cooling Setpoints Active leo F Active 75 5 F Occupied Eso Occupied 720 Unoccupied 500 Unoccupied 850 Low Limit 50 Low Limit 50 High Limit 78 High Limit 80 Calibrate m Flow Outdoor Air Required Minimum Ex 29 CFM Occupied Maximum sim 237 CFM Unoccupied opm Min Heating 22 57 Offsets Min LocalHeat 4 E 122 Heat Offset 4 Fan Control Setpoint 1 14 So DIN Download Ready J start Wst 221 072 E IF 5 Bf 11 22 4m 2 Click the File menu and click Save As 3 The Save As dialog box will appear Name unit and click Save Figure 28 Save As prompt Demo vav 58 vav Device vavi vav 58 vav Devi vav 1 14 vav vav 7U vav zi Ed vav 1 15 vav E vav 71 vav VAV B5 vay VAY 10 vav vay Woy program Device Save as Cancel Downloading Program Files from PC to DDC UCM 4 2 1 Selectthe Configure button and the Configuration screen will appear 36 VAV SVX01D EN TRANE UCM Programming
18. D ECL ae Zone Sensor Auxiliary Sensor and Thumbwheel Set Point Calibration If there is a discrepancy between a measured temperature and whatthe UCM reports acalibration offset value can be edited in the UCM setup screen to correct the displayed value Flow Sensor Calibration If there is a discrepancy between a measured flow and whatthe UCM reports the measured value can be entered which automatically calculates a calibration multiplier to correct the displayed value VAV SVX01D EN TRANE General Information e For standalone units series or parallel fan operation will use the unoccupied fan control when the local unoccupied request function is received In UCM 3 3 and prior the fan would operate as if occupied during local unoccupied request e UCM 4 2 adds a local minimum heating flow set point The use of and value of this set point is configurable UCM 4 2 Backward Compatibility UCM 4 2 can be used to replace UCM I UCM Il and UCM Ill with no compatibility issues However if the communicating device i e Command Unit or Comfort Manager l is a COM 3 device 1992 or earlier then you will need an upgrade chip The Comfort Manager chip upgrade is Kit 1511 and the Command Unit chip upgrade is Kit 1512 UCM 4 2 Features UCM Outputs UCM Triac outputs for controlling a fan or reheat are rated at 12 VA each Wiring Diagram Figure 3 p 14 sh
19. Heat mode fan flow set point off unless reheat Heat mode fan is on off unless reheat is on Parallel Fan Powered Units Occupied Units Air valve control for parallel fan powered units is the same as for single duct units The first heat output is utilized to control the fan The remaining outputs are utilized to control heat Fan energization is a function of the Parallel Fan Control Offset The parallel fan control can be specified as an offset temperature in degrees above the heating set point or as a flow offset in CFM The fan will be energized above the fan control offset if reheat is required Parallel Fan Flow Type Control If the fan control is based on flow the unit fan will be energized whenever primary airflow is below this set point For this parallel fan configuration the fan control point if specified in a percentage of unit airflow must be set between 15 and 3096 of the units cataloged airflow to assure proper operation A differential of 596 exists to avoid excessive fan cycling Note The fan control offset is entered in CFM when used on a VariTrane unit Parallel Fan Temperature Type Control When the fan control offset is in terms of a temperature above the heating set point the fan shall be energized whenever the zone temperature is below the heating set point plus the fan control offset A differential of 0 5 F 0 3 C shall apply to this switch over to avoid fan cycling Heat stages a
20. Info Unit Type VariTrane F Round Software Revision 4 2 Setpoints Active Heating 76 0 FIBI Active Cooling 78 0 F Zone Sensor Control Mode Action Cool Unoccupied Binary Input Type Generic Status Closed Fan Type None Status Present Value Ausiliary Input Type Temp Vale 711F Calibration in Progress Pressure Dependent Operation Timed Override Request Timed Overried Exists Configure Enter Service Mode Reset ater with 4ux Output Cancel Diagnostic Table Use the DiagnosticTable Table 13 p 46 for failure parameters and Comm 4 UCM actions to help understand issue Table 13 Sensed Parameter Zone Temperature Thumbwheel Setpoint Air Flow 46 Failure Criteria Open OR Short gt 25 seconds AND no active wireless sensors Open OR short AND no active wireless sensors For UCM 3 3 and prior Flow lt 10 when flow control point gt 10 OR flow gt 110 or 150 for series C For UCM 4 Flow lt 5 when flow control point gt 10 OR flow gt 115 or 155 for series C UCM 4 will also indicate open short for the air flow sensor Failure parameters and Comm 4 UCM actions Action Taken If failed open control valve as if very cold temperature If failed shorted control as if very hot temperature Setpoints from EEPROM used If unsuccessful at recovering flow signal operate in pressure dependen
21. LED2 and LED3 will respond to diagnostics by exhibiting specific blinking patterns They will occur on the sensor as a result of pressing theTest button S5 Table 18 p 50 They will occur on the receiver independently of any user action Table 18 p 50 Table 15 Diagnostics LED1 LED2 LED3 on the sensor User Action Press Test Button SS Press Test Button SS Press Test Button SS Press Test Button SS LED Display a LED1 Off LED2 Off LED3 1 blink pattern repeated 3 times LED 1 Off LED2 Off LED3 2 blink pattern repeated 3 times LED 1 Off LED2 Off LED3 3 blink pattern repeated 3 times LED 1 Off LED2 Off LED3 4 blink pattern repeated 3 times Indicates Disassociated Sensor is not associated with a receiver Address set to 000 Address not set to between 001 999 Not Configured Sensor configuration properties not properly set defective sensor Input Voltage Too High No RF transmission is permitted with an input battery voltage greater than 3 9 V a Blink pattern is On for s Off for 1 4 s with 2 s Off between repetitions VAV SVX01D EN Troubleshooting Note No special tools or software are necessary to service and test the wireless zone sensor system The system can be testing by using the following 1 LEDs 1 2 3 and 5 on the sensor on the receiver 2 The Test button S5 on the se
22. Local Heat flow is used to determine the minimum position flow instead of the Min Heating Flow when local heat is on The entry for Min Heating Flow must be less than or equal to the entry for the Maximum Flow setpoint This defines the minimum difference between the cooling and heating setpoints Valid Range 2 F to 10 F Control Offset When control offset is active the UCM adds the value to the edited occupied cooling setpoint and subtracts the control offset value from the edited occupied heating setpoint to determine the active setpoints The control offset value does not affect a zone sensor thumbwheel setpoint Fan Control Setpoint The entry on this line determines when a parallel fan will be turned ON and OFF If Parallel fan control has been edited to DEG the fan control offset will be entered as a temperature offset 2 10 F 1 1 C 5 5 C which will be Outdoor Air Required Occupied The UCMs use these values to calculate the ventilation ratio Valid range 0 to 100 added to the heating set point If Parallel fan control has been edited to FLOW this line will be entered as a percent 0 to 100 if the unit is a VariTrane unit The entry field on this line will appear as if the unit does not have a parallel Unoccupied UCMs use these values to calculate the ventilation ratio Valid range 0 to 100 fan Important This field is visible ONLY with Parallel Fan Offsets Heat Offset
23. OPTIONAL FUSE DISCONNECT SWITCH amp TRANSFORMER WIRING WIRINGS GOES THRU TO NEXT COMPONENT WHEN OPTIONS ARE NOT CHOSEN TRANSFORMER WIRE COLORS 120V W 208V R 240V 277V BR 480V R BK 575V R 190V R 220V R 347V R ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR OPTIONAL USE OF COMMUNICATIONS JACK BL OPTIONAL FACTORY INSTALLED Y WIRELESS 24 GND 24V UCM or EI Board OPTIONAL FUSE DISCONNECT GREEN amp TRANSFORMER OPTIONAL POWER GROUND SCREW OPTIONAL DISCONNECT SWITCH OPTIONAL FUSE CONNECTED TRANSFORMER 5 GND 24V UCM or EI Board ee ee m lt 5 ROT __ TB1 1 24VAC O COMMON rade BIP GR NC CONTACT TB41 1 24vac BK RETURN L 1 Y OPTIONAL FIELD INSTALLED OCCUPANCY SENSOR TB1 1 TB2 6 TB3 3 TB3 1 Z Z Z Z Z 6 3 2 1 11 10 7 DIGITAL DISPLAY ZONE SENSOR W COMM JACK REMOTE MTD C at OPTIONAL FIELD INSTALLED DIGITAL DISPLAY ZONE SENSOR l N WARNING HAZARDOUS VOLTAGE DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCONNECTS AND FOLLOW LOCK OUT AND TAG PROCEDURES BEFORE SERVICING INSURE THAT ALL MOTOR CAPACITORS HAVE DISCHARGED STORED VOLTAGE UNITS WITH VARIABLE SPEED DRIVE REFER TO DRIVE INSTRUCTIONS FOR CAPACITOR DISCHARGE
24. See Figure 1 p 7 for UCM terminallocations and Figure 2 p 13 through Figure 5 p 16 for wiring of output devices Zone Sensor Wiring Location and Mounting A zone sensor in each control zone should be located in the most critical area of the zone Sensors should not be mounted in direct sunlight or in the area s supply air stream Subdivision of the zone may be necessary for adequate control and comfort Avoid mounting zone sensors in areas subject to the following e Drafts or dead spots behind doors or corners e Hotor cold air ducts e Radiant heat from the sun or appliances e Concealed pipes or chimneys e Unheated or uncooled surfaces behind the sensor such as outside walls e Air flows from adjacent zones or other units Wiring Each unit must be controlled by a zone sensor that is designated specifically for use with the UCM control Field wiring for the zone sensors must meet the following requirements e Must be 14 to 18 AWG e Refer to the sensor instructions for terminal connections e If local codes require enclosed conductors the zone sensor wires should be installed in conduit Do not 11 TRANE UCM 4 2 Installation and Wiring route zone sensor wires in conduit with 24VAC or other high power conducting wires Multiple UCM s Per Zone Sensor Up to three 3 UCM s may be connected to a single zone sensor and thumbwheel set point e Connect terminal connections TB3 1 TB3 2 and TB3 3 in p
25. Temp Fa PL E Control Flow Control Auto Mode Unoccupied Present Minimum 23 Action Heat Ventilation Ratio 0 00 DE Max Hot Water Override Binary Input Type Generic Status Closed Fan r Heat Type Parallel Type None Status Enabled Status Present Value Off Present Value Ready start NC gt Gh Flye 26 eco E Inte Er M VAV SVX01D EN Status Tab Unit Info UnitType The different types of units for the selected UCM Software Revision The version of the UCM software Setpoints Active Heating The active or actual heating setpoint currently used by the UCM Active Cooling The active or actual cooling setpoint currently used by the UCM Zone Sensor Shows the setpoint set at the zone sensor for the controlled space Control Mode Shows whether the UCM is in occupied or unoccupied mode The control mode determines which heating or cooling setpoints to use Action Shows the UCM s heating or cooling action The cool control action modulates the air valve as ifthe supply duct air is colder than the space temperature The heat control action modulates the air valve as if the supply duct air is warmer than the space temperature Binary Input Type For version 4 0 or higher UCMs shows whether the BIP is configured for occupancy or as a Generic BIP Status Shows the position of the binary input Open Closed as a generic input or Occupied
26. Unoccupied from an occupancy input Fan Type The type of fan for the unit may be Series Parallel or none Status Shows whether the fan is enabled or disabled Present Value Shows whether the fan is on or off Auxiliary Input Type Shows the two types of auxillary inputs temperature and C02 They are mutually exclusive to one another Value The displayed value will reflect either the temperature if it has a temperature sensor input or the PPM if it is configured with a C02 input Other Position The air valve or damper position Flow This line displays the unit s airflow rate expressed in the flow units selected in the setup menu This line will not be shown if the UCM is using position control instead of flow control The UCM will use position control if the flow sensor is failed or not installed The UCM will also use position control if the VAV SVX01D EN TRANE UCM Programming and Operation unit s airflow rate is less than 5 or greater than 110 of the unit s cataloged CFM For example the UCM will use position control for a size 600 CFM unit if the flow is less than 30 CFM 5 or greater than 660 CFM 110 Note Although the UCM will read flow down to 5 of cataloged and up to 110 of cataloged the range of MIN FLOW settings 15 0 or 10 to 100 of cataloged The range of MAX FLOW settings is 100 6 of cataloged In the example above the lowest allowable MIN FLOW set point is 60 CF
27. and a receiver that work together to provide the same functions as the equivalent Trane wired sensor 4190 1090 such as the standard 10 k temperature input with the exception of the communication jack No further software or hardware is necessary for site evaluation installation or maintenance The sensor transmits the zone temperature all zone temperature setpoint functions timed override Occupied Figure 6 Outside dimensions for sensor 4 78 in 12 14 cm 2 62 in 6 65 cm VAV SVX01D EN S TRANE On and timed override Unoccupied Cancel information to the receiver The receiver electrically reproduces the zone temperature resistance all zone temperature setpoint function resistances and timed override On and timed override Cancel information as sent by the sensor Dimensional Diagrams See Figure 6 p 17 and Figure 7 p 18for dimensions ofthe Wireless Zone Sensor set The dimensions are the same for both the sensor and the receiver 1 08 in 2 75 cm Note The dimensions are the same for both the sensor and the receiver 17 TRANE Wireless Zone Sensor Figure 7 Mounting hole dimensions for sensor 3 27 in 8 30 cm 2 36 in 6 00 cm 1 34 in 3 41 cm Note The dimensions are the same for both the sensor and the receiver Setting the Address Mounting Choosing a Location for Mounting the Wiring and Associating the d S Placemen
28. between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability and cause damper to not be driven its full range f voltage check up stream of controller to see were voltage has been interrupted See Figure 44 p 58 to Figure 51 p 65 for correct unit diagrams Actuator motor has failed Check voltage at J1 6 toTB1 2 should have 24 If 2AVAC is not present check incoming powerto the UCM board onTB1 1 andTB1 2 Should measure 24 VAC 1096 If proper voltage is measured atTB1 1 andTB1 2 and no voltage at J1 6 andTB1 2 replace UCM Check motor by applying 24 VAC directly to common blue and jumper open black wire to a ground to drive damper open e Damper should drive open Check motor by applying 24 VAC directly to common blue and jumper closed red wire to a ground to drive damper closed e Damper should drive closed e f damper actuator does not open or close replace actuator VAV Series Fan Failure Procedures In the event that the fan output is not energizing properly inspect the following 1 54 Verify the output configuration in the UCM setup menu e Unit needs to be configured as Series fan Outputs on the UCM are configured as normally closed e Verify the output configuration in the UCM setup menu Note Series fan powered units in the occupied mode has the fan continuously energized See operation Chapter for details 3
29. configuration tab will be defined in programming the configuration menus UCM Home Tabs Instructions Configuration To access the data fields for each tab and to make adjustments select the Configure button as shown in Figure 22 p 28 To make adjustments find the correct parameter change it and download to UCM File wiew Tools Help th TUCE Status Setpoints Setup Wireless Advanced Configuration f Wats i f MAY TERMINAL UNIT 4 ee V4 TERMINAL UNIT UCH 4 i Ce S WAY TERMINAL LIMIT UCH 4 i Other Active 50 0 F Occupied 68 0 F r Heating Setpoints Setpoints Tab Figure 23 Setpoints tab Configuration File setpoints Setup Wireless Advanced Configuration Heating Setpoints Active 50 0 F Occupied 68 0 Unoccupied 500 Lows Limit 50 Flow Minimum 76 x 120 Maximum 92 EE x 920 CFM Min Heating 2E x 230 CFM Min Local Heat 48 LE x 480 CFM Fan Control Setpoint 47 470 CFM Cooling Setpaints Ace 85 0 F Occupied 2 Cooling Setpoints Aclive oo F Occupied 720 Unoccupied 850 Low Lirit 50 i L c0 Outdoor Ar Required Oecupied Offsets Heat Offset 4 Control Offset O Unoccupied oj Configure Diagnostics Download 28 Close Help
30. control is pressure independent utilizing the VariTrane flow sensing ring The flow ring provides one of the most accurate differential pressure flow measurements in the industry by averaging pressure differentials across 16 sensing points These sensing points arranged in a ring configuration to compensate for various inlet duct configurations provide a signal accurate to within 5 of cataloged CFM provided there is 177 inlet diameters of straight ductwork upstream of the VAV box The pressure differential signal from the flow ring is then converted to an electrical signal which is utilized in the control algorithm of the unit controller It is recommended that the recalibrate sequence be initiated on a weekly basis Assuming 112 inlet diameters of straight duct work and proper system recalibration total system flow measurement accuracy flow ring transducer and UCM controller during the occupied mode should be 596 of cataloged airflow overthe typical operating range of 2096 to 10096 of unit cataloged airflow Failure IModes Each UCM has diagnostic capabilities which allow it to sense various failure conditions This diagnostic capability aids in maintenance and trouble shooting of the system Along with reporting these failure conditions the UCM will follow a pre programmed operating sequence designed VAV SVX01D EN TRANE Sequence of Operations to maintain zone comfort during a failure The failure conditions and
31. is set to Temp Sensor the current auxiliary temperature is displayed in this field The value is reported after applying the calibration offset by the UCM If the temperature sensor fails dashes display instead of the temperature Calibration The auxiliary temperature calibration offset adds the offset to the value read by the auxiliary temperature sensor EXAMPLE If the auxiliary temperature sensor indicates a temperature of 74 0 F 23 3 C and the auxiliary temperature calibration offset is 1 5 F the actual temperature used by Rover is 72 5 F 22 5 C Valid range 10 0 F 10 0 F 5 5 C 5 5 C Note lt may take 30 seconds after a new offset is entered before the calibration is factored into the auxiliary temperature Outputs 1 3 The outputs can be either Normally Open or Normally Closed Outputs 1 and 2 can be edited only when the heat type is 3 Stage Hot Water In all other cases they are set to Normally Open If there is a fan output 3 is set to Normally Open and cannot be edited If there is no fan output 3 can be edited if the heat type is either 3 Stage Hot Water or Hot Water with Auxiliary Output Wired Zone Temperature Value This field displays the value of the wired zone temperature sensor after the UCM has added the wired zone temperature calibration offset If the zone sensor has failed or is not present dashes appear Calibration The zone temperature sensor calibration offset The U
32. needs to be configured as parallel fan 2 Outputs on the UCM are configured as normally closed e Verify the output configuration in the UCM setup menu Note Parallel fan can be enabled by either a differential temperature above the heating setpoint or CFM flow See UCM Programming and Operation p 24 for details VAV SVX01D EN Figure 42 Configuration File Setpoints Setup Wireless Advanced Configuration Unit Type VariTrac Rectangular Unit Size x 12 Inches Heat Type None Y Flow Override Auto Fan Type Parallel Local Heat Setpoint ij 5 Parallel Fan Control Flow Configuration Generic Cooling Flow Auxiliary Input Outputs Present Value CFM Type C02 Sensor 1 Measured Value 0 Value 396 2 Correction Factor 1 00 Voltage Ref 4 90 J Wired Zone Temperature Wired Sensor anal lp Calibration 0 0 Wired Thumbwheel Setpoint 75 6F Calibration 0 0 Value Use Averaged X Thermistor Vote 1 Download Close Help Tracer Summit has the fan output disabled Check group global and or Tracer overrides to make sure they are not inhibiting fan operation A flow override exists locking out the fan output e Checkto make sureTracer or Rover has released fan disable override Note lffancycling is based on temperature go to step 5 and if it is based on flow go to step 6 If fan control
33. on call for fan UCM if LED does not light up replace UCM e Remove fan wires from UCM and apply 24 VAC directly e Fan relay should energize If it does not check wiring If wiring is OK replace fan relay Note UCM Outputs are switched to ground Do not Jumper 24 VAC to J9 J10 or J11 because damage will occur After all checks have been completed check motor fan winding integrity and bearing failure PSC Variable Speed Motor Check Out If PSC Variable speed motor control not changing speed of the motor inspect the following h Wires connected improperly e Check wiring to make sure speed control is wired correctly See Figure 48 p 62 and Figure 49 p 63 for wiring schematic e Check voltage selection switch on side of variable speed motor control e Should be set for motor voltage To check speed control Turn voltage selection switch fully CCW e Turn Motor speed control potentiometer fully CCW Motor should remain off Turn voltage selection switch fully CW e Motor speed control potentiometer still fully CCW e Measure motor voltage Should be no morethan 8VAC lower than line voltage With voltage selection switch still fully CW e Turn Motor speed control potentiometer slowly fully CW Should go to full speed smoothly If it fails any of these tests replace PSC motor speed controller Testing ECM DCU and ECM VCU Fan Control If ECM is not controlling Fan Motor properly inspec
34. operational e Drive Air Valve to Maximum Flow The air valve is driven to the maximum airflow set point The fan and electric heat outputs are disabled hot water heat remains enabled Heat Control Override Heat control can be disabled locking out heat outputs Fan Control Override Fan control can be disabled locking out both fan and heat outputs This affects only parallel fan powered units Control Offset Control Offset may be enabled which adjusts the edited cooling and heating set points 39 TRANE Sequence of Operations Recalibrate Reset The recalibrate function can be enabled Series Fan Powered Units Occupied Units Air valve control for series fan powered units is the same as both single duct and parallel fan powered units During the occupied mode of operation the series fan is continuously energized Heat stages are energized on the following schedule Table 12 Heat stages Stage ON Switch point OFF Switch point 1 At the heating set point 0 5 F above the heating set point 2 1 F below the heat set point 0 EE Override Conditions Series Fan The UCM occupied controls can be overridden by the following override commands Unoccupied If the control mode is edited to unoccupied the unoccupied cooling and heating temperature set points are used for temperature control series fan and heat outputs will be activated as necessary to maintain the curre
35. sensor User Action None Press Test Button SS Press Test Button SS Press Test Button SS LED Display LED1 Off LED2 Off LED3 Off LED1 Off LED2 Off LED3 Off LED1 On LED2 On LED3 On Displays for 5 seconds then constantly off LED1 Off LED2 On LED3 On Displays for 5 seconds then constantly off Indicates Normal state No Test button press Associated no communication with receiver Associated but no signal from the receiver after pressing Test button Excellence signal quality Adequate signal margin for reliable communication Marginal signal quality Reduced battery life likely Consider moving the sensor or receiver to a better location Press Test Button SS Table 17 User Action Press Test Button SS LED1 Off LED2 Off LED3 On Displays for 5 seconds then constantly off Poor signal quality Unreliable communication Strongly recommend moving the sensor or receiver to a better location Battery status LED5 on the sensor LED Display Indicates Solid green for 5 Battery condition is adequate seconds for proper operation Solid red for 5 Battery condition is low seconds Batteries should be replaced Batteries are totally dead or No light not installed properly or sensor is defective None Blinking red 1 blink pattern repeated 5 times Cycle repeats every 15 minutes Battery condition is low Appr
36. to pressure dependent mode despite being above 5 and below 110 6 of cataloged flow and performing a normal calibration does not correct the problem Steps for Calibration e Log onto the UCM with Rover software e Turn the central air handler off If this is not possible Trane recommends pulling the transducer tubes off during the calibration process to simulate this e Select the calibrate unit option button Figure 38 Rover software RoverComm4 Device 65 VAV TERMINAL UNIT UCM4 File View Tools Help X TUEs Status Setpoints Setup Wireless Advanced Configuration 65 TERMINAL UNIT UCM4 Unit Info Auxiliary Input 86 VAV TERMINAL UNIT UCM4 Unit Type VariTrac Rectangular Type 02 Sensor 97 VAY TERMINAL UNIT UCM4 Diagnostics Other Software Revision 4 2 Value 1178 Setpoints Enter Service Mode Active Heating 500 Position 23 Active Cooling 850 Flow Reset Zone Sensor 75 6 F Zone Temp 71 1 F Control Flow Control Auto Mode Unoccupied Presen t Minimum 23 Action Heat Ventilation Ratio 0 00 Close 51 TRANE Troubleshooting Rover software will indicate that calibration is taking place in diagnostic log e When calibration is complete the box will release to auto Drive the box open to make sure that the box is not below 5 of its cataloged CFM The controller is accurate in
37. to the same address as the associated receiver 2 Remove the insulation barrier which is a plastic strip located between the two batteries Figure 13 p 23 3 Association will automatically occur between the sensor and the receiver If the first association attempt is unsuccessful the sensor will automatically reattempt association with the receiver every 10 minutes Note disassociated sensor will transmit an association request every 10 minutes An associated sensor that has lost communication with the receiver will transmit an association request every 50 minutes Note LED3 on the receiver stops blinking to indicate that association has been established Figure 13 Removing the insulation barrier on the sensor SENSOR LED LED2 LED3 LED5 BATTERY STATUS 0 lt L ls C 0 dem WU Nid U 3 p 55 Testing Signal and Battery Strength The following recommended test indicates signal and battery strength It verifies that the association process was successful and that the batteries have adequate charge For more information on LEDs see Troubleshooting p 45 1 Firmly press and release the Test button S5 on the bottom of the sensor Figure 14 p 23 VAV SVX01D EN Trane Wireless Zone Sensor 2 View LED1 LED2 and LED3 to determine the strength of the signal View LED5 to determine the strengt
38. volts DC 5 volts DC cataloged If voltage not available replace UCM Remove the high and low tubes from the transducer to simulate no flow Read the transducer output voltage on J3 of the UCM board between the green and the black wires with a voltmeter The voltage should be between 0 20 volts DC and 0 30 volts DC 0 25 volts DC is the null voltage output of the transducer indicating zero flow If voltage not available replace transducer Note The formula for the Transducer output voltage Is 0 25 0 75 delta P where delta P is the pressure in inches of water column Delta P can range from 0 to 5 inches of W C e With flow across the flow ring measure the differential pressure with a magnahelic and use Transducer output voltage formula to check accuracy of reported value Read the transducer output voltage between the green and the black wires The measured value should correspond to the value given in the transducer output formula If transducer is off by 596 replace transducer VAV SVX01D EN Auxiliary Temperature Sensor Failure Procedures In the event that the UCM reports an incorrect or failed Auxiliary temperature properly inspect the following 1 Make sure VAV UCM has been configured for auxiliary input Figure 40 UCM setup screen Configuration File Setpoints Setup wireless Advanced Configuration VariTrane F Round v Unit Size 8 Inches Auto v Series Unit HeatT
39. 1 TRANE UCM Programming and Operation BIP Configuration Version 4 0 or higher UCMs are provided with a binary input that can be used to monitor either an occupancy sensor or provide the status of a generic binary input Valid Selections Occupancy Generic BIP Configuration default is Generic The BIP Configuration interface is for dry relay contacts connected to 4 1 In generic mode the state of the input is only passed on from the UCM to Summit CPL code must be written in order for Summit to utilize any signal received from this generic input When configured as a generic input and communications are active an occupancy input state will be reflected by the UCM to the upper level system controller The upper level system controller shall be responsible for causing any system changes necessary to provide occupied control When configured for generic mode loss of communications will result in the UCM defaulting back into occupied mode In occupancy detector mode the absence of a 24 VAC signal at TB4 1 indicates occupancy and the presence of 24 VAC indicates non occupancy When configured for an occupancy sensor and communications are active an occupancy input state will be reflected by the UCM to an upper level system controller The upper level system controller shall be responsible for causing any system changes necessary to provide occupied control When configured for an occupancy sensor and communications are not act
40. 11215 I I CONTACTOR ST STAGE 5 HEAT CONTACTORS MAGNETIC CONTACTORS MAGN MERCURY CONTACTORS MERC HEATER TERMINAL BOX w BK TERMINAL BLOCK TRANSFORMER Y BL D D C Nu CM CONTROL BOARD POWER FACTOR PRESSURE CORRECTION CHOKE TRANSDUCER rE D D C NU CM Noe CONTROL BOX SHIELDED TWISTED PAIR OPTIONAL FACTORY INSTALLED COMMUNICATIONS WIRING WIRELESS VAV SVX01D EN 65 AC Alternating Current AHU Air Handling Unit AIP Analog Input AOP Analog Output AVG Average AWG American Wire Gauge BCU Building Control Unit BIP Binary Input BMS Building Management System BOP Binary Output oC Celsius CCP Central Control Panel CFM Cubic Feet per Minute CMS Cubic Meters per Second CO2 Carbon Dioxide COM Communication CPL Custom Program Language CU Command Unit DDC Direct Digital Control DEG Degree DP Differential Pressure EEPROM Electrically Erasable Programmable Read Only Memory Fahrenheit Hz Hertz ICS Integrated Comfort System I O Input Output IOP Installation Operation and Programming LED Light Emitting Diode MAX Maximum MIN Minimum NEC National Electric Code PPM Parts Per Million PROM Programmable Read Only Memory PWM Pulse Width Modulation RSSI Receiver Signal Strength Indicator RTD Resistance Temperature Detector SAP Supply Air Pressure SAT Supply Air Temperature TB Terminal Block TOV T
41. 3 and measure the VDC It should be 5VDC If 5VDC is shown on terminals 2 andTB3 3 at the UCM the wires going to the zone have an open If5VDC is not present check incoming power to the UCM board 1 1 and TB1 2 This should measure 24 VAC 10 If you measure the proper voltage atTB1 1 andTB1 2 and no voltage at TB3 2 TB3 3 replace UCM Note If no voltage at TB1 1 TB1 2 see UCM see UCM failure procedures 4 Zone sensor setpoint is shorted out e Check the resistance across the wires Disconnect wires from UCM and zone sensor making sure the ends are not touching each other and measure resistance It should be infinity or no conductivity If lower resistance is shown wires are shorted together and needs to be replaced 5 Morethan one UCM connected to a single zone sensor VAV SVX01D EN e Cut jumper wires W1 and W2 on all slave units If jumper is not cut it will give erroneous temperature setpoint value Wireless Zone Sensor Failure Procedures In the event that the UCM reports an incorrect zone Temperature sepoint properly inspect the following Figure 36 Wireless sensor set components with base plates removed LED 1 LED 2 LED 3 LED 5 HEATING SET FAN SYSTEM SETPOINT LED 1 LED 2 LED 3 LED 5 Diagnostics Note Reading diagnostics can show if the sensor has an issue or it has not been setup properly Use this information as a starting point e LED1
42. 40 Occupied Units 40 Override Conditions Series Fan 40 Zone Sensor Functions 40 Flow Sensor 41 Failure 0 41 Air and Water Balancing 42 Chapter Overview 42 Air Balancing 42 System Checkout 42 System Setup 42 VAV Single Duct Unit Air Balancing 42 Water Balancing 44 Troubleshooting 45 Chapter Overview 45 Diagnostic Log 45 Diagnostic Table 46 UCM Failure Procedures 46 UCM Communication Loss Procedures 47 Wired Zone Sensor Failure Procedures 47 Wired Zone Setpoint Failure Procedures 48 Wireless Zone Sensor Failure Procedures 49 Airflow Failure Procedures 51 Auxiliary Temperature Sensor Failure Procedures 53 Auxiliary C02 Sensor Failure Procedures 53 VAV Damper Failure Procedures 53 VAV Series Fan Failure Procedures 54 VAV Parallel Fan Failure Procedures 54 VAV Electric Heat Stage s Failure Procedures 56 VAV Proportional Hot water failure 56 Trane Honeywell Proportional valve check out procedures 57 Cartridge 57 Actuator Failure 57 VA
43. 7 8 OLOTSUS 5 2 825 5 6 55 4580854005 8 VAV Start Up Check Out Procedure 9 Chapter Overview 9 UCM 4 2 Pre Power Check Out 9 Light Emitting Diode LED Operations 9 Zone Sensor 10 UCM 4 2 Installation and Wiring 11 Chapter Overview 11 UCM 4 2 Power Wiring 11 Power Requirements 11 Zone Sensor Wiring 11 Location and Mounting 11 WINO ew Fae 11 Multiple UCM s Per Zone Sensor 12 Multiple UCM s per Auxiliary Duct Temperature Sensor 12 Zone Sensor Hardwired Option 12 Zone Sensor Wireless Option 12 Communication Wiring 12 Communication Link Wiring 12 DIP Switch Settings 13 Wireless Zone Sensor 17 OVerVIeW 94 Rada dora S as 17 Dimensional Diagrams 17 Setting the Address Mounting Wiring and Associating the Receiver and Sensor 18 Choosing a Location for Mounting the SENSO scusa x eue Rd RR ERR acd 18 Setting the Rotary Address Switches on the Receiver and the Sensor 19 Factory Wiring of the Receiver to the VAV 20 Replacing and Securing the Receiver Cover 22 Applying Power to the Receiver 22 Powering the Sensor and Associa
44. 9 5 Table 14 Zone sensor temperature resistance Thermostat Thumbwheel Sensor Resistance Temp F Resistance k Ohms Ohms 80 9 3 81 9 0 82 8 8 83 8 6 84 8 4 85 8 2 Note Thumbwheel resistance checks are made at terminal 2 and 3 on the zone sensor Temperature sensor resistance is measured at terminal 1 and 2 of the zone sensor Wired Zone Setpoint Failure Procedures In the event that the UCM reports an incorrect zone setpoint properly inspect the following 1 Zone sensor setpoint wired incorrectly e Check wiring for the correct connections See Chapter 2 for further details on zone sensor wiring 2 Defective zone sensor setpoint dial Disconnectthe zone sensorterminal connections from the UCM and using an Ohmmeter measure the resistance across the terminals 2 common and 3 setpoint of the zone sensor Compare the resistance to specified set point on sensor using Table 3 p 10 The resistance shown should correlate within 2 degrees of setpoint shown on Table 3 p 10 If not the zone sensor needs to be replaced 3 Defective wiring or UCM e With wires still connected to VAV UCM disconnect zone sensor setpoint wires and check voltage DC from wires that were connected to terminals 2 and 3 of zone sensor These should measure 5VDC If meter does not read 5VDC then see if the UCM is outputting 5VDC This can be done by disconnecting the wires on the VAV UCM on terminals 2 andTB3
45. ACITORES DEL MOTOR HAYAN DESCARGADO EL VOLTAJE ALMACENADO PARA LAS UNIDADES CON TRANSMISI N DE VELOCIDAD VARIABLE CONSULTE LAS INSTRUCCIONES PARA LA DESCARGA DEL CONDENSADOR EL NO REALIZAR LO ANTERIORMENTE INDICADO OCASIONAR LA MUERTE O SERIAS LESIONES PERSONALES VAV SVX01D EN UCM 4 2 Installation and Wiring Figure 4 Wiring diagram for fan powered units with field installed reheat NN DAMPER poem EE ACTUATOR FAN CONTROL OPTIONAL FIELD INSTALLED jr PRODUIRE NOTER AES _ AeA OE EN NN I Er RELESS 7 2 BOX WIRING C HOT QPEN CLOSE TB 1 2 6 185 2 TH3 I 1181 2 1182 5 1183 2 I I l I 5000000 11107 6 35 2 1 DIGITAL DISPLAY ZONE SENSOR W COMM JACK l cec cg 4 REMOTE MTD OPTIDNAL FIELD INSTALLED DIGITAL DISPLAY ZONE SENSOR HIP CNO 24V PRESSURE TRANSDUCER ADDRESS D D C NU C M SWITCH CONTROL BOARD s OPTIONAL FIELO INSTALLED ZONE SENSOR Id l MEAM z z i 4 4 D D C NU C M l l l 7 CONTROL BOX l 1 OPTIONAL FIELD INSTALLED OPTIONAL FACTORY INSTALLED HAZARDOUS VOLTAGE DISCONNECT ALL ELECTRIC POWER OPTIONAL FIELD INSTALLED INCLUDING REMOTE DISCONNECTS AND SHIELDED WIRELESS L ON OFF WATER VALVE 1 TWIST
46. AIR COMMUNICATIONS WIRING R HOT __ TB1 1 24VAC _ _ _ _ TB4 1 BIP L GR NC CONTACT TB4 1 24VAC BK RETURN _ _ _ TB1 2 GND lue 58 NOT CONNECTED OPTIONAL FIELD INSTALLED OCCUPANCY SENSOR FACTORY WIRING FIELD WIRING DAMPER ACTUATOR WIRING GND 24V D D C U C M CONTROL BOARD ZONE GND WIRELESS OPTIONAL AUX TEMP SENSOR OPTIONAL OR ALTERNATE WIRING 2 1 4 QUICK CONNECT REQUIRED FOR ALL FIELD CONNECTIONS 2 GND 9 1 a OPTIONAL FACTORY INSTALLED FAN CONTROL BOX WIRING Y 24 VAC BL PRESSURE TRANSDUCER J3 R VOUT sc D D C U C M CONTROL BOX HEATER STAGE CONTACTOR S 24VAC 12VA MAX COIL OPTIONAL FIELD INSTALLED ELECTRIC HEATER OPTIONAL FIELD INSTALLED CO2 SENSOR EW ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL lt 5 THE OPTIONAL BINARY INPUT CONNECTS BETWEEN TB4 1 BIP AND 24VAC HOT FROM TRANSFORMER THE BINARY INPUT CAN BE RECONFIGURED AS AN OCCUPANCY INPUT VIA THE COMMUNICATIONS INTERFACE AS SHIPPED THE AUX INPUT IS CONFIGURED AS AN AUX TEMP INPUT THE AUX INPUT CAN BE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE lt S TERMINAL NOT TO BE USED WITH VARITRANE ZONE SENSOR TERMINAL
47. AS RESPECTER CES MESURES DE PRA oCAUTION PEUT ENTRA ZNER DES BLESSURES GRAVES POUVANT STRE MORTELLES N ADVERTENCIA iVOLTAJE PELIGROSO DESCONECTE TODA LA ELA 0CTRICA INCLUSO LAS DESCONEXIONES REMOTAS Y SIGA LOS PROCEDIMIENTOS DE CIERRE Y ETIQUETADO ANTES DE PROCEDER AL SERVICIO ASEG SRESE DE QUE TODOS LOS CAPACITORES DEL MOTOR HAYAN DESCARGADO EL VOLTAJE ALMACENADO PARA LAS UNIDADES CON TRANSMISI N DE VELOCIDAD VARIABLE CONSULTE LAS INSTRUCCIONES PARA LA DESCARGA DEL CONDENSADOR EL NO REALIZAR LO ANTERIORMENTE INDICADO PODR A OCASIONAR LA MUERTE O SERIAS LESIONES PERSONALES 59 TRANE Troubleshooting Figure 46 Single duct with single phase voltage electric heat SINGLE DUCT UNITS ELECTRONIC OR DDC UCM HEATER TERMINALS TYPICAL OF SINGLE PHASE VOLTAGES LINE VOLTAGE SEE NAMEPLATE LI L2 N 480 L1 L2 208 240 MAGNETIC CONTAUTURS MAGN MERCURY CONTACTORS MERC OPTIONAL DISCONNECT L SWITCH HEATER TERMINAL BOX DAMPER ACTUATOR WIRING B aa PRESSURE GND 24V TRANSDUCER D D C NU C M CONTROL BDARO a J D D C NU C M CONTROL BOX SHIELDED TWISTED PAIR COMMUNICATIONS WIRING OPTIONAL FACTORY INSTALLED WIRELESS 60 VAV SVX01D EN Troubleshooting Figure 47 Single duct with three phase voltage electric heat SINGLE DUCT UNITS UCN 208 480 575 HEATER TERMINALS TYPICAL THREE PHASE VOLTAG
48. C 378 C The set point limits will be applied to the active heating set point by the UCM but will not restrict operator entry of set points Flow Table 8 Valid flow ranges by model VariTrane C 0 10 150 VariTrane D 0 10 110 VariTrane F 0 10 100 Minimum Although the UCM will read flow down to 596 of cataloged the range of MIN FLOW settings is 096 or 1096 to 10096 of cataloged The UCM will not drive its flow below this minimum flow value under normal operating conditions while in the cool mode Cool mode occurs when cool air is in the supply duct The entry in the Cooling Minimum field must be less than or equal to the entry in the Maximum field Maximum This range is 10 to 100 of the unit s cataloged CFM size Cooling and heating flow can be edited to zero The UCM will not drive its flow above this maximum flow value under normal operating conditions while in the Cool mode Cool mode occurs when cool air is in the supply duct The entry for 29 TRANE UCM Programming and Operation Maximum Flow must be greater than or equal to the entry in any of the Minimum fields Min Heating The UCM will not drive its position flow below this value under normal operating conditions while in the HEAT mode warm air in the supply duct or while it is using local heat The Min Heating Flow value must be less than or equal to the Maximum Flow value Min Local Heat If the Min Local Heat flow is enabled then the Min
49. CLOTHING ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED FOR INTENDED VOLTAGE Failure to follow instructions could result in death or serious injury VAV SVX01D EN Copyright This documentand the information in it are the property of Trane and may not be used or reproduced in whole or in part without written permission Trane reserves the right to revisethis publication atany time and to make changes to its content without obligation to notify any person of such revision or change Trademarks VariTrac VariTrane Trane and the Trane logo are trademarks or registered trademarks ofTrane in the United States and other countries Trane is a business of Ingersoll Rand All trademarks referenced in this document are the trademarks of their respective owners Revision History VAV SVX01D EN Updated board photo and part number BRD04939 replaced BRD02806 VAV SVX01D EN ex TRANE Introduction TRANE Table of Contents IntrOGHUC HOT 2 Warnings Cautions and Notices 2 Important Environmental Concerns 2 Important Responsible Refrigerant 3503 199 90d Kar u ra e dE aha 2 General Information 6 Overview of Manual 6 Chapter Overview 6 Unit Control Module 4 2 UCM 4 2 6 Specifications 6 UCM 4 2 Enhancements 6 UCM 4 2 Features
50. CM adds the offset to the value read by the zone sensor After you add a new offset Rover may take up to 30 seconds to update the displayed temperature Valid Range 10 F 10 F 5 5 C 5 5 C Wired Sensor Use This input determines the function of the wired zone temperature sensor Select Averaged to use the sensor as part of a wired system OR to use the sensor as an averaging sensor in an older style wireless system Type This line is used to edit the type of temperature sensor being used sensor type can be selected as either Thermistor or RTD Note Factory supplied sensors are thermistors VAV SVX01D EN Note Set point vote determines the weighting of the set point vote The range is 0 9 This number represents the number of votes the sensor gets when the set points are averaged If 0 is selected the sensor gets no vote Wired Thumbwheel Select the check box to enable the local thumbwheel setpoint input If the Thumbwheel Setpoint check box is not selected the UCM does not respond to the following thumbwheel functions e Setpoint e Ability to generate a drive to max command e Ability to generate unoccupied command Note Disabling thumbwheel functions does not disable the On Cancel push button feature Figure 25 Wireless tab TRANE UCM Programming and Operation Setpoint This line displays the value of the thumbwheel setpoint after the calibration offset is applied If the T
51. D EN 13 TRANE UCM 4 2 Installation and Wiring Table 6 DIP switch settings for UCM 4 2 continued The following figures show wiring diagrams for typical applications of UCM 4 2 Figure 3 Wiring diagram for single duct units with factory installed electric reheat BL HEATER STAGE 24VAC 60HZ CONTACTOR S OPTIONAL DAMPER NEC CLASS 2 INSTALLED Y lt WIRELESS TRANSFORMER ACTUATOR CONTROL CIRCUI LOAD 12VA l oc WIRING WITHOUT HEAT 3RD 2ND 1ST fo 24VAC BL 3RD STG 1ST STG GND 24V UCM or EI Board TB1 1 TB2 6 TB3 3 TB3 1 R v o BR HOT TB1 2 Y TB1 1 BL HOT 1 2 2 5 TB3 2 j j DIGITAL DISPLAY ZONE SENSOR W COMM JACK 51 MTD jo bei lt a 41 4 lt EY OPTIONAL FIELD INSTALLED E i DIGITAL DISPLAY ZONE SENSOR PRESSURE TRANSDUCER Bus Tod TB25 3 2 ADDRESS D D C U C M SWITCH CONTROL BOARD 1 i 8 VOUT HHHHHH 1 ko a T l ZONE SENSOR ZONE GND SET A CO2 GND 2 W COMM JACK aal allay 815 YEL GR 5121519 lt REMOTE MTD JE POEL O oO Bee BE N OPTIONAL FIELD Hj INSTALLED ZONE SENSOR l D D C U C M
52. E CONTROL CIRCUIT WIRELESS 24VAC ACTUATOR 12VAMAX LOAD 12VA WIRING WITHOUT HEAT Leu d OPTIONAL FIELD INSTALLED PROPORTIONAL WATER VALVE 1 posee 24VAC ni EN GND 24V z 51528 225 OPTIONAL P FUSE DISCONNECT 1 GREEN amp TRANSFORMER zl GROUND SCREW gt l mi OPTIONAL DISCONNECT SWITCH d a a OPTIONAL POWER OPTIONALE TRANSFORMER FUSE 50VA 514141441 ee PRESSURE TRANSDUCER GND 24V ADDRESS D D CAU C M UCM or El Board SWITCH CONTROL BOARD BK pacer cu ale iur RR VOUT HHHHHH G _ ICs R HOT 2 TB1 1 24VAC O COMMON TB4 1 BIP C GR NC CONTACT TB1 1 24vVac ZONE GND SET A CO2 BK RETURN 12 Y _ 5655 iecit oh gd i ne A q 1 1 TB1 1 26 TB33 3 1 TES TBT2 2 5 TB3 2 OUT D D C U C M CONTROL BOX Z Z Z Z vt 7 6 3 2 1 a OPTIONAL FACTORY INSTALLED DES zz Sz DIGITAL DISPLAY ZONE SENSOR COMMUNICATIONS WIRING WIRELESS 5 25 DISP ZONES Z 2 rp 4 1 24V REMOTE MTD TB2 6 TB3 1 t en _ Tr prs 1 TB2 5 TB3 2
53. E PHASE LINE VOLTACES 208 875 30 MAGNETIC CONTACTORS MAGN MERCURY CONTACTORS MERC HEATER TERMINAL BOX DAMPER ACTUATOR FAN WIRING MOTOR e y oscowweci 7 6 HN e a 2 ruse Cy CONTROL MOTOR w 0 BR m x TERMINAL BLOCK 8 PRESSURE TRANSDUCER D D C NU C M CONTROL BOARD D D C NU C M RN 37 CONTROL BOX SHIELDED TWISTED PAIR OPTIONAL FACTORY INSTALLED COMMUNICATIONS WIRING WIRELESS VAV SVX01D EN 63 TRANE Troubleshooting Figure 50 ECM fan powered with single phase voltage electric heat 64 FAN POWERED UNITS ELECTRONIC OR DDC UCM ECM MOTOR HEATER TERMINALS TYPICAL OF SINGLE PHASE VOLTAGES 206 240 480 277 347 LINE VOLTAGE L1 L2 N SEE NAMEPLATE L1 N CONTACTOR 15T STAGE g 4r HEAT CONTACTORS NAGNETIC_CONTACTORS MAGN 1ST STG HOT V 2ND SIG BR TRANSFORMER gt D D C NU C M CONTROL BOARD 24 POWER FACTOR PRESSURE CORRECTION CHOKE TRANSDUCER D 0 C U C M CONTROL BOX SHIELDED TMSTED PAIR OPTIONAL FACTORY INSTALLED COMMUNICATIONS WIRING WIRELESS VAV SVX01D EN Troubleshooting Figure 51 ECM fan powered with three phase voltage electric heat FAN POWERED UNITS UCM ECM MOTOR HEATER TERMINALS TYPICAL QF THREE PHASE VOLTAGES 208 480 575 SEE HEATER SCHEMATIC FOR ACTUAL WIRING 1
54. ED PAIR COMMUNICATIONS WIRING WARNING N 0 1 A D mal dy dd L ELECTRIC HEATER 1 FOLLOW LOCK neue ara MOTOR CAPACI HAN HARGE Q COMMQN _ Ta4 1 STORED VOLTAGE UNITS WITH VARIABLE GR NC CONTACU _ 1 2avac SPEED DRIVE REFER TO DRIVE BK RETURN _ 1 2 GNO INSTRUCTIONS FOR CAPACITOR DISCHARGE 2 FALURE TO DO THE ABOVE COULO RESULT NOT CONNECTED IN DEATH OR SERIOUS INJURY OPTIONAL FIELD INSTALLED 1 _ OPTIONAL FELD INSTALLED AVERTISSEMENT L _ _ OCCUPANCY SENSOR L _ AUX TEMP SENSOR TENSION DANGEREUSE COUPER TOUTES LES TENSIONS ET QUVAR LES SECTIGNNEURS DISTANCE NOTE AUIS SUIVRE LES PROC DURES DE vERROLILLAGE ET QES TIQUETTES AVANT WISIND OECHARGES DANS LE Gi CAS s D UNIT S FIELD WIRING wns 055 ENTRAINEMENTS OPTIONAL OR ALTERNATE WIRING Oe Sutin PO ten Pou 2 1 4 QUICK CONNECT REQUIRED FOR ALL FIELD CONNECTIONS PRECAUTION PEUT ENTAAINCR DES gt 2 ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS ION PEU JACK EQUIPPED ZONE SENSOR OPTION vollem a LE lt NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL ADVERTENCIA THE OPTIONAL BINARY INPUT CONNECTS BETWEEN 184 1 AND 24VAC HOT FROM pem T TRANSFORMER THE BINARY INPUT CAN BE RECONFIGURED AS AN OCCUPANCY INPUT THE I
55. ES 111215 SEE HEATER SCHEMATIC ACTUAL WIRING CONTACTUR am STAGE THREE PHASE LINE VOLTACES Hr At 480 U a MAGNETIC CONTACTORS MAGN PRESSURE TRANSDUCER D D C NU C M CONTROL BOARD D D C NU C M CONTROL BOX SHIELDED TWSTED PAIR COMMUNICATIONS WIRING OPTIONAL FACTORY INSTALLED WIRELESS VAV SVX01D EN 61 Troubleshooting Figure 48 SCR PSC fan powered with single phase voltage electric heat FAN POWERED UNITS ELECTRONIC OR DDC UCM HEATER TERMINALS TYPICAL OF SINGLE PHASE VOLTAGES LINE VOLTAGE Li L2 N 208 240 480 SEE NAMEPLATE L1 N 277 347 L1 L2 N 8 CONTACTORS amp 4 2 ULM DAMPER ACTUATOR WIRING see B S T 4 MOTOR O OPTIONAL ed w SPEED p 5 P FUSE CONTROL amp MOTOR gt amp BK RELAY TERMINA BLOCK D W R TRANSFORMER D D C NU C M CONTROL BOARD D D C NU C M CONTROL BOX SHIELDED TMSTED PAIR OPTIONAL FACTORY INSTALLED COMNUNICATIONS WIRING WIRELESS 62 VAV SVX01D EN Troubleshooting Figure 49 SCR PSC fan powered with three phase voltage electric heat 208 4B0 575 FAN POWERED UNITS UCM HEATER TERMINALS TYPICAL THREE PHASE VOLTAGES L L2 LIN SEE HEATER SCHEMATIC FOR ACTUAL WIRING I I 1 STAGES THRE
56. FRANE Installation Operation and Maintenance VAV UCM 4 2 28 tta B niin 36 nul LUI LN E pn 5 ASAFETY WARNING Only qualified personnel should install and service the equipment The installation starting up and servicing of heating ventilating and air conditioning equipment can be hazardous and requires specific knowledge and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment March 2014 VAV SVX01D EN am Ingersoll Rand TRANE Introduction Read this manual thoroughly before operating or servicing this unit Warnings Cautions and Notices Safety advisories appear throughout this manual as required Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions The three types of advisories are defined as follows Indicates a potentially hazardous AWARNING situation which if not avoided could result in death or serious injury Indicates a potentially hazardous ACAUTION situation which if not avoided could result in minor or moderate injury It could also be used to alert against unsafe practices NOTICE Indicates a situation that could resultin equipment or property damage only accidents
57. H VARITRANE 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 TB1 2 CONTACTORS ARE 24 VAC 12VA MAX COIL MERCURY CONTACTORS 10VA MAX COIL MAGNETIC CONTACTORS OPTIONAL FUSE DISCONNECT SWITCH amp TRANSFORMER LOCATED IN HEATER ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR OPTIONAL USE OF COMMUNICATIONS JACK STORED VOLTAGE UNITS WITH VARIABLE SPEED DRIVE REFER TO DRIVE INSTRUCTIONS FOR CAPACITOR DISCHARGE FAILURE TO DO THE ABOVE COULD RESULT IN DEATH OR SERIOUS INJURY N AVERTISSEMENT TENSION DANGEREUSE COUPER TOUTES LES TENSIONS ET OUVRIR LES SECTIONNEURS DISTANCE PUIS SUIVRE LES PROCA amp DURES DE VERROUILLAGE ET DES A oTIQUETTES AVANT TOUTE INTERVENTION VA oRIFIER QUE TOUS LES CONDENSATEURS DES MOTEURS SONT DA 0CHARGA 0S DANS LE CAS D UNITA oS COMPORTANT DES ENTRAAZNEMENTS VITESSE VARIABLE SE REPORTER AUX INSTRUCTIONS DE L ENTRAAZNEMENT POUR DA 0CHARGER LES CONDENSATEURS NE PAS RESPECTER CES MESURES DE PRA oCAUTION PEUT ENTRAAZNER DES BLESSURES GRAVES POUVANT ASTRE MORTELLES N ADVERTENCIA iVOLTAJE PELIGROSO DESCONECTE TODA LA ENERGA A ELA oCTRICA INCLUSO LAS DESCONEXIONES REMOTAS Y SIGA LOS PROCEDIMIENTOS DE CIERRE Y ETIQUETADO ANTES DE PROCEDER AL SERVICIO ASEGASRESE DE QUE TODOS LOS CAP
58. M zero is also permissible and 600 CFM is the highest allowable MAX FLOW set point ZoneTemp The temperature as reported by the zone sensor Ifthe UCM is at version 4 or greater and the unit type is Bypass Damper Round or Rectangular this field is replaced by the supply air temperature Dashes appear if the zone sensor is not functioning when allowed to be displayed Flow Control The flow control override of the UCM Valid values Auto Open Closed Min or Max Present Minimum If the UCM is in pressure independent mode using flow control the present minimum expressed in the appropriate flow units appears in the Present Minimum field If the UCM is in pressure dependant mode using position control the minimum is expressed as percentage open Ventilation Ratio he ventilation ratio equals the outside air requirement divided by the air valve flow Type the occupied outside air requirement and the unoccupied outside air requirement on the Setpoints tab Max Hot water Override Used to give status if Hot water Valve is being overridden Heat Type This field shows the different types of reheat Choices are 1 None 2 3 Stage Electric 3 Electric Slow Pulse Width Modulation 4 Proportional Hot Water with Auxillary Heat and 5 3 Stage Hot Water Status Shows whether the heat is enabled or disabled Present Value Shows whether the heat is on or off Setpoints Tab The UCM Home screens that are shown are no
59. MINAL UNIT UCM4 Unit Info 66 TERMINAL UNIT UCM4 97 VAY TERMINAL UNIT UCM4 Dther Software Revision 42 Unit Type VariTrac Rectangular Setpoints Active Heating 50 OF Active Cooling 85 0 F Zone Sensor 75 6 E Control Mode Unoccupied Action Heat Binary Input Type Generic Status Closed Fan Type Parallel Status Enabled Present Value Off Auxiliary Input Configure Type C02 Sensor Value 1178 Diagnostics Enter Service Mode Position 23 Flow Zone Temp Flow Control Auto ae Present Minimum 23 Ventilation Ratio 0 00 Max Hot Water Override Heat Type None Status Present Value Close Ready Oce ean Some of the items reported see Figure 35 p 46 are listed to aid in understanding current operation Reported items are 1 Timed Override Exists 2 CancelTimed Override 3 Auxiliary Temperature Sensor Not Present 4 Unoccupied Request from Zone Sensor Function 5 Max Flow Request from Zone Sensor Function 6 Calibration in Progress and 7 Pressure Dependent Operation VAV SVX01D EN gt Flye eco E Inte Baza sm 45 TRANE Troubleshooting Figure 35 Items reported RoverComm4 Device 66 VAV TERMINAL UNIT UCM4 TUCs VAVs BB TERMINAL UNIT 1 Dther Status Setpoints Setup Wireless amp dvanced Configuration Unit
60. NCLUSO LAS DESCONEXIONES REMOTAS Y COMMUNICATIONS INTERFACE AS SHIPPED THE AUX INPUT IS CONFIGURED AS AN AUX TEMP INPUT THE AUX INPUT CAN BE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE S TERMINAL NOT TO BE USED WITH VARITRANE ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDEO TWISTED PAIR 222 WIRING FOR OPTIONAL USE OF COMMUNICATIONS JACK INDICADO PODRIA OCASIONAR LA MUERTE Q SERIAS LESIONES PERSONALES VAV SVX01D EN 15 UCM 4 2 Installation and Wiring Figure 5 HEATER TERMINAL BOX WIRING 2ND STG HEAT S BR HOT 1ST STG HEAT DAMPER ACTUATOR E EIN WIRING Y 24 VAC BL GND 24V PRESSURE TRANSDUCER ADDRESS D D C U C M SWITCH CONTROL BOARD VOUT HHHHHH ZONE GND SET A CO2 EN YEL GRN D D C U C M OUT OUT OPTIONAL FIELD INSTALLED SHIELDED TWISTED PAIR COMMUNICATIONS WIRING te I ee 71 55 TB4 1 BIP Eum 1 2 GND CONNECTED OCCUPANCY SENSOR 1 FACTORY WIRING FIELD WIRING CONTROL BOX OPTIONAL FACTORY INSTALLED WIRELESS OPTIONAL L AUX TEMP SENSOR OPTIONAL FIELD INSTALLED CO2 SENSOR OPTIONAL OR ALTERNATE WIRING 2 1 4 QUICK CONNECT REQUIRED FOR ALL FIELD CONNEC
61. NNECTS AND FOLLOW LOCK OUT AND TAG PROCEDURES BEFORE SERVICING INSURE THAT ALL MOTOR CAPACITORS HAVE DISCHARGED STORED VOLTAGE UNITS WITH VARIABLE SPEED DRIVE REFER TO DRIVE INSTRUCTIONS FOR CAPACITOR DISCHARGE FAILURE TO DO THE ABOVE COULD RESULT IN DEATH OR SERIOUS INJURY N AVERTISSEMENT TENSION DANGEREUSE COUPER TOUTES LES TENSIONS ET OUVRIR LES SECTIONNEURS DISTANCE PUIS SUIVRE LES PROCA oDURES DE VERROUILLAGE ET DES A oTIQUETTES AVANT TOUTE INTERVENTION VA RIFIER QUE TOUS LES CONDENSATEURS DES MOTEURS SONT DA 0CHARGA oS DANS LE CAS D UNITA S COMPORTANT DES ENTRAAZNEMENTS VITESSE VARIABLE SE REPORTER AUX INSTRUCTIONS DE L ENTRAAZNEMENT POUR DA oCHARGER LES CONDENSATEURS NE PAS RESPECTER CES MESURES DE PR 9G CAUTION PEUT ENTRAAZNER DES BLESSURES GRAVES POUVANT STRE MORTELLES ADVERTENCIA iVOLTAJE PELIGROSO DESCONECTE TODA LA ELA CTRICA INCLUSO LAS DESCONEXIONES REMOTAS Y SIGA LOS PROCEDIMIENTOS DE CIERRE Y ETIQUETADO ANTES DE PROCEDER AL SERVICIO ASEG SRESE DE QUE TODOS LOS CAPACITORES DEL MOTOR HAYAN DESCARGADO EL VOLTAJE ALMACENADO PARA LAS UNIDADES CON TRANSMISIA N DE VELOCIDAD VARIABLE CONSULTE LAS INSTRUCCIONES PARA LA DESCARGA DEL CONDENSADOR EL NO REALIZAR LO ANTERIORMENTE INDICADO OCASIONAR LA MUERTE O SERIAS LESIONES PERSONALES VAV SVX01D EN Wireless Zone Sensor Overview TheTraneWireless Zone Sensor set includes a sensor
62. Occupied cooling and heating set points must be set within the cooling set point high limit and the heating set point low limit in order to control to the proper set points Unoccupied Set points have a range of 30 0 F 100 0 F 1 1 C 37 8 C This cooling set point is used when the UCM is unoccupied The unoccupied cooling set point must be greater than or equal to the unoccupied heating set point plus 2 0 F 1 1 C Low Limit This limit applies to the occupied mode only starting in UCM version 4 1 Prior to version 4 1 the limits would affect both the unoccupied and occupied setpoints Occupied Cooling set point is subject to high and low limits The cooling set point high limit and the heating set point low limit cap your unoccupied set points which directly impacts energy savings The upper level device is responsible for preventing the resulting set points from being crossed This may happen if the heating set point low limit is above the cooling set point high limit Having the cooling set point high limit and the heating set point low limit set to the factory defaults cooling high limit 102 F 38 8 C heating low limit 43 F 6 1 C should prevent them from impacting field operation High Limit This limit applies to the occupied mode only starting in UCM version 4 1 Prior to version 4 1 the limits would affect both the unoccupied and occupied setpoints Both limits have a range of 30 0 F 100 0 F 1 1
63. S 6 AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION VAV SVX01D EN BL OPTIONAL FACTORY INSTALLED Y WIRELESS 24VAC GND 24V UCM or El Board TB1 1 TB2 6 TB3 3 DIGITAL DISPLAY ZONE SENSOR W COMM JACK REMOTE MTD OPTIONAL FIELD INSTALLED DIGITAL DISPLAY ZONE SENSOR ZONE SENSOR W COMM JACK REMOTE MTD GIG OPTIONAL FIELD INSTALLED ZONE SENSOR fee A CHE DCN J p ON OFF TO J9 WATER VALVE TO J8 24 VAC OPTIONAL FIELD INSTALLED 12VA ON OFF WATER VALVE N WARNING HAZARDOUS VOLTAGE DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCONNECTS AND FOLLOW LOCK OUT AND TAG PROCEDURES BEFORE SERVICING INSURE THAT ALL MOTOR CAPACITORS HAVE DISCHARGED STORED VOLTAGE UNITS WITH VARIABLE SPEED DRIVE REFER TO DRIVE INSTRUCTIONS FOR CAPACITOR DISCHARGE FAILURE TO DO THE ABOVE COULD RESULT IN DEATH OR SERIOUS INJURY N AVERTISSEMENT TENSION DANGEREUSE COUPER TOUTES LES TENSIONS ET OUVRIR LES SECTIONNEURS A DISTANCE PUIS SUIVRE LES PROCA DURES DE VERROUILLAGE ET DES A TIQUETTES AVANT TOUTE INTERVENTION VA oRIFIER QUE TOUS LES CONDENSATEURS DES MOTEURS SONT 5 DANS LE CAS D UNITA 0S COMPORTANT DES ENTRAAZNEMENTS VITESSE VARIABLE SE REPORTER AUX INSTRUCTIONS DE L ENTRAAZNEMENT POUR DA oCHARGER LES CONDENSATEURS NE P
64. T be performed by qualified personnel Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described in NEC and your local state electrical codes AWARNING Personal Protective Equipment PPE Required Installing servicing this unit could result in exposure to electrical mechanical and chemical hazards Before installing servicing this unit technicians MUST put on all PPE required for the work being undertaken Examples cut resistant gloves sleeves butyl gloves safety glasses hard hat bump cap fall protection electrical PPE and arc flash clothing ALWAYS refer to appropriate Material Safety Data Sheets MSDS Safety Data Sheets SDS and OSHA guidelines for proper PPE When working with or around hazardous chemicals ALWAYS refer to the appropriate MSDS SDS and OSHA GHS Global Harmonized System of Classification and Labelling of Chemicals guidelines for information on allowable personal exposure levels proper respiratory protection and handling instructions If there is a risk of energized electrical contact arc or flash technicians MUST put on all PPE in accordance with OSHA NFPA 70E or other country specific requirements for arc flash protection PRIOR to servicing the unit NEVER PERFORM ANY SWITCHING DISCONNECTING OR VOLTAGE TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH
65. TIONS lt 3 ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL lt 5 THE OPTIONAL BINARY INPUT CONNECTS BETWEEN 4 1 BIP AND 24VAC HOT FROM TRANSFORMER THE BINARY INPUT CAN BE RECONFIGURED AS AN OCCUPANCY INPUT VIA THE COMMUNICATIONS INTERFACE AS SHIPPED THE AUX INPUT IS CONFIGURED AS AN AUX TEMP INPUT THE AUX INPUT CAN BE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE lt S TERMINAL NOT TO BE USED WITH VARITRANE ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION 16 Wiring diagram for fan powered units with factory installed electric reheat OPTIONAL FACTORY BL INSTALLED Y WIRELESS 24VAC GND 24V UCM or EI Board TB1 1 TB2 6 TB3 3 TB3 1 Z Z Z Z Z Z 11 10 T 6 3 2 1 DIGITAL DISPLAY ZONE SENSOR W COMM JACK REMOTE MTD OPTIONAL FIELD INSTALLED DIGITAL DISPLAY ZONE SENSOR TB2 6 TB2 5 TB3 1 TB3 2 EE Z Z 2 1 ZONE SENSOR W COMM JACK REMOTE MTD lt 3 1 lt 4 OPTIONAL FIELD INSTALLED ZONE SENSOR WARNING HAZARDOUS VOLTAGE DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCO
66. V Two Position Hot water failure 57 VAV SVX01D EN Wiring Diagrams Appendix TRANE General Information Overview of Manual Note One copy of the document is shipped with VAV units that have UCM 4 2 DDC controllers and is customer property It must be retained by the unit s maintenance personnel This booklet describes proper installation operation and maintenance procedures for delivered air systems By carefully reviewing the information within this manual and following the instructions the risk of improper operation and or component damage will be minimized Should equipment failure occur contact a qualified service organization with qualified experienced HVAC technicians to properly diagnose and repair this equipment Chapter Overview This chapter contains information about the following e Unit Control Module 4 2 UCM 4 2 e Specifications e UCM 4 2 Enhancements e UCM 4 2 Features e Shipping e Storage Unit Control Module 4 2 UCM 4 2 The UCM 4 2 is a microprocessor based Direct Digital Controller DDC for the Variable Air Volume VAV terminal unit It contains the control logic to modulate the flow of supply air through the VAV terminal in response to the load requirements within the VAV zone The function of the UCM is to control the VAV terminal unit to vary the volumetric airflow rate to the zone Units have been made with either pneumatic analog electronic or m
67. VIA THE COMMUNICATIONS INTERFACE AS SHIPPED THE AUX INPUT IS CONFIGURED AS AN AUX TEMP INPUT THE AUX INPUT CAN BE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE lt 7 S TERMINAL NOT TO BE USED WITH VARITRANE 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 TB1 2 OPTIONAL FUSE DISCONNECT SWITCH amp TRANSFORMER WIRING WIRINGS GOES THRU TO NEXT COMPONENT WHEN OPTIONS ARE NOT CHOSEN TRANSFORMER WIRE COLORS 120V W 208V R 240V O 277V BR 480V R BK 575 R 190V R 220V R 347V R ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR OPTIONAL USE OF COMMUNICATIONS JACK Table 7 Wiring harness wire identification Table 7 TENSION DANGEREUSE COUPER TOUTES LES TENSIONS ET OUVRIR LES SECTIONNEURS A DISTANCE PUIS SUIVRE LES PROCA oDURES DE VERROUILLAGE ET DES A oTIQUETTES AVANT TOUTE INTERVENTION VA oRIFIER QUE TOUS LES CONDENSATEURS DES MOTEURS SONT D CHARG S DANS LE CAS D UNITA oS COMPORTANT DES ENTRAAZNEMENTS VITESSE VARIABLE SE REPORTER AUX INSTRUCTIONS DE L ENTRAAZNEMENT POUR DA oCHARGER LES CONDENSATEURS NE PAS RESPECTER CES MESURES DE PRA oCAUTION PEUT ENTRAAZNER DES BLESSURES GRAVES POUVANT STRE MORTELLES N ADVERTENCIA iVOLTAJE PELIGROSO DESCONECTE TODA LA
68. ZONE SENSOR OPTIONAL OR ALTERNATE WIRING 1 4 QUICK CONNECT REQUIRED FOR ALL FIELD CONNECTIONS lt 3 ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL lt 5 THE OPTIONAL BINARY INPUT CONNECTS BETWEEN TB4 1 BIP AND 24VAC HOT FROM 24VAC 60HZ NEC CLASS 2 CONTROL CIRCUIT LOAD 12VA WITHOUT HEAT k b PRESSURE TRANSDUCER VOUT D D C U C M CONTROL BOX WALL MOGuniED OPTIONAL FIELD INSTALLED L CO2 SENSOR 1 HEATER STAGE l CONTACTOR S 24 12VA MAX COIL OPTIONAL FIELD INSTALLED ELECTRIC HEATER al p ON OFF TO J9 WATER VALVE TO J8 24 VAC OPTIONAL FIELD INSTALLED ON OFF WATER VALVE 12VA MAX TRANSFORMER THE BINARY INPUT CAN RECONFIGURED AS AN OCCUPANCY INPUT VIA THE COMMUNICATIONS INTERFACE AS SHIPPED THE AUX INPUT IS CONFIGURED AS AN AUX TEMP INPUT THE AUX INPUT CAN BE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE lt 7 S TERMINAL NOT TO BE USED WITH VARITRANE 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 TB1 2
69. a typical configuration 11 75 OFF OFF ON OFF ON ON STAR chaining is also acceptable 12 76 ON ON OFF OFF ON ON Note Polarity is extremely important and must be 13 77 OFF ON OFF OFF ON ON observed on communication link connections 14 78 ON OFF OFF OFF ON ON 5 Atthe VAV box communication link wires must be 15 79 OFF OFF OFF OFF ON ON connected to TB2 1 and TB2 2 4 terminals on 16 80 ON ON ON ON OFF ON the UCM 17 81 OFF ON ON ON OFF ON 6 Verify that the UCM address is properly set DIP switch 18 82 ON OFF ON ON OFF ON SW1 See Table 6 13 for proper DIP switch settings 19 83 OFF OFF ON ON OFF ON 20 84 ON ON OFF ON OFF ON DIP Switch Settings 21 85 OFF ON OFF ON OFF ON 22 86 ON OFF OFF ON OFF ON DIP Switch SW1 contains six switches for addressing the 23 87 OFF OFF OFF ON OFF ON UCM These switches allow a user to set a unique 24 88 ON ON ON OFF OFF ON communication address for each UCM Each UCM on a 25 89 OFF ON ON OFF OFF ON given communication link must have a unique address in T B SN SEE EE SH order forTracer Summit or the CCP to communicate to it Refer to Table 6 p 13 for UCM 4 2 DIP switch settings E CMM NEL UELLE 28 92 ON ON OFF OFF OFF ON Note When using Rover service tool to communicate 29 93 OFF ON OFF OFF OFF ON to the UCM you must add 64 to the DIP switch ES B SY ere OF OF IN address For example a UCM with the DIP switch a
70. acteristics of the location Thermal considerations e Avoid areas of direct sunlight e Avoid areas in the direct air stream of air diffusers e Avoid exterior walls and other walls that have temperature differential between their two sides e Avoid areas close to sources of heat such as sunlight appliances or other equipment e Avoid drafty areas e Avoid dead spots behind doors projection screens or corners Radio transmission considerations e Avoid metal barriers between the sensor and receiver such as plastered walls with metal lathe as they will decrease radio signal quality Figure 8 TRANE Wireless Zone Sensor e Avoid placing the sensor inside metal enclosures e Avoid radio transmissions through thick solid concrete walls Setting the Rotary Address Switches on the Receiver and the Sensor Note To expedite the installation and association process set the addresses before applying power to the receiver The process of establishing communication between the receiver and sensor is referred to as association The receiver and the sensor must have their rotary switches set to the same address in order to enable communication between the two devices see Figure 8 p 19 Important limitations are as follows e Only one associated receiver sensor set can communicate within the reception range of the wireless system e 115 not possible to associate more than one sensor to a receiver nor is it possi
71. als TB3 1 and 2 and measure the VDC It should be 5VDC If 5VDC is not present check incoming power to the UCM board on TB1 1 andTB1 2 Should measure 24 VAC 10 If you VAV SVX01D EN Troubleshooting measure the proper voltage atTB1 1 andTB1 2 and no voltage atTB3 1andTB3 2 replace UCM Note If no voltage at TB1 1 and TB1 2 see UCM see UCM failure procedures Disconnect the receiver sepoint wires on the UCM on terminals TB3 2 TB3 3 and measure the VDC It should be 5VDC If 5VDC is not present check incoming power to the UCM board on 1 1 andTB1 2 Should measure 24 VAC 10 If you measure the proper voltage atTB1 1 andTB1 2 and no voltage atTB3 2andTB3 3 replace UCM Note If no voltage atTB1 1 and TB1 2 see UCM see UCM failure procedures Airflow Failure Procedures In the event thatthe air valve is reading position instead of flow or in the event that the measured flow reads incorrectly i e different from the balance report properly inspect the following e Recalibrate unit by cycling power to unit This can also be accomplished with Rover Summit or CCP software Note Cycling power to the VAV board will automatically cause the unit to calibrate however following the procedure outlined below will provide a more accurate calibration Itis only necessary to perform this procedure in instances where you are experiencing incorrect flow readings or if the unit reverts
72. and Operation Figure 29 Configuration screen open RoverComm4 Device 65 VAV TERMINAL UNIT UCM4 9 File View Tools Help SA TUCs Status Setpoints Setup Wireless Advanced Configuration E VAV s 65 TERMINAL UNIT Dther Configuration Diagnostics Save s Wireless Advanced Configuration Enter Service Mode Reset m Heating Setpoints Cooling Setpoints Active 71 6F Active 75 6 F Occupied 68 0 Occupied 720 Unoccupied 500 Unoccupied 850 Low Limit 50 Low Limit 50 High Limit 78 High Limit Flow Outdoor Air Required Minimum 28 Occupied xs 237 CFM Unoccupied x 57 Offsets 122 CFM Heat Offset 4 Control Offset 0 Calibrate Maximum Fan Control Setpoint 14 22 Download di start w a Mam 521 ATA ol dE 2 Click the File menu and click Open 4 Download to DDC VAV controller 3 The Open dialog box will appear Select the file you 5 Program is now in controller wish to open and click the Open button Figure 30 Open dialogue box Devicel E File name VAV SVX01D EN LICTTI UCM vay wawl vav 1 14 vawv vav 1 15 vawv vawv B Way vavy 5B vav vavy 58 vav vaw 0 vay vav Ed 1O vay YAY program Device
73. arallel i e daisy chain from the master UCM to the slaved 6 Note Proper polarity must be maintained e Cut jumper wires W1 and W2 on the slaved UCM s never cut jumper wires W1 and W2 on master UCM Multiple per Auxiliary Duct Temperature Sensor Up to three 3 UCMs may be connected to a single auxiliary duct temperature sensor e Connect terminal connections 5 and TB3 6 in parallel i e daisy chain from the master UCM to the slaved 5 Note Proper polarity must be maintained e Cut jumper wire W4 on the slaved UCMs never cut jumper wire W4 on the master UCM Zone Sensor Hardwired Option Depending on the zone sensor options used a maximum of five wires may be required to run from the UCM to the zone sensor The zone sensor options are e Zone sensor only 2 wires Part Number X13511528010 e Sensor with night set back Part Number X13511530010 e Zone sensor with external adjustable Part Number X13511529010 e sensor with external adjustable night set back timed override TOV on cancel button Part Number X13511527010 e Digital zone sensor Part Number 13790866010 e Communications jack Part Number X13651467020 for one box of 12 Note All wiring from the zone sensor to the Communication link must be twisted shielded pair wiring Zone Sensor Wireless Option Wireless Zone Sensor Receiver is used to receive a signal from the wireless zone sensor an
74. ard The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability Heatlriac s be checked with purchasing a 24 VAC LED and see if it lights up on call for Heat output to be open or closed by UCM If LED does not light up replace UCM NOTICE Equipment Damage UCM Outputs are switched to ground Do not jumper 24 VAC to J9 J10 or J11 because damage will occur Check controller proportional hot water logic e Reconfigure controller setup from a VariTrane F unit into a VariTrac unit with proportional hot water heat e Recalibrate unit e Drive time configured in rover should be 120 seconds e Raise the temp 4 above the space temp 4 degrees offset must be maintained during test it should take 3 2 min from close to open The temperature from space to setpoint must remain 4 degrees over the length of the test If unit does not pass test check actuator and valve After valve and actuator are found to be ok repeat test and if it is still failing replace controller Note Ifthe controller is not reconfigured as a varitrac unit and remains configured as a varitrane unit with proportional hot water it would take 1 1 hrs to move from completely closed to completely open e Put original configuration back in controller Trane Honeywell Proportional valve check out procedures Two problems can occur with the cartridge actuator or both that
75. ator The indication from the yellow LED is as follows Table2 Yellow LED communication indicator function LED State Indication Incorrect reversed On communication polarity no connection or shorted lines Blinking slowly approx 1 blink Communication is occurring on the sec link but not for that particular UCM Blinking quickly multiple blinks Communication is occurring on the sec link specifically with that UCM Polarity is correct and no Off communication is occurring on the link TRANE VAV Start Up Check Out Procedure Zone Sensor Check out If an erroneous temperature is being reported to the UCM use the Zone sensor temperature resistance table p 10 to verify the integrity of the adjustable set point potentiometer or sensor The resistance should be measured across the terminals to which the device is connected Note Disconnect the zone sensor from the UCM when making the checks listed in the table below Table 3 Zone sensor temperature resistance table Thermostat Thumbwheel Temp F Resistance Ohms Note 10 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 Thumbwheel resistance checks are made at TB3 2 and TB3 3 onthe 792 772 753 733 714 694 675 656 636 617 597 578 558 539 519 500 481 461 442 422 403 383 364 344 325 306 286 267 247 228 208 Sensor Resistanc
76. backup operating sequences are explained below Temperature Sensor Failure Failure of a zone temperature sensor open or below low limit of O F 17 8 C will cause fan and heat outputs to be disabled and airflow to be controlled to the minimum cooling flow set point If the measured temperature fails above the high limit short or above 100 F 378 C the airflow shall be controlled to the maximum flow set point Flow Sensor Failure If a flow sensor failure is reported open short fails calibration oris out ofthe normal range of 596 to 11096 of box cataloged the UCM will immediately revert to a position based pressure dependent control algorithm This allows full operation of the unit and maintains the ability to control the zone temperature If a flow sensor has failed itis periodically checked for proper operation If found to be operating properly the UCM will be switched to the standard pressure independent control Otherwise position control is used as long as the flow signal remains out of range Local Thermostat Set Point Failure Failure of a local thermostat set point adjustment potentiometer will cause the UCM to revert to the edited occupied cooling and heating set point Communications Failure A fifteen minute failure in communications between the UCM and Tracer Summit will cause the UCM to e Operate in the occupied mode provided that no occupancy sensor is present on inputTB4 1 e Set the IAQ multipl
77. ble to associate more than one receiver to a sensor Setting the rotary address switches on the receiver and the sensor Do not remove the insulation strip yet kil n magma Apu o J e HEATING SET 55 FAN SYSTEM SETPOINT S5 ZONE GND 24VAC DC GND COMM U COMM BR R Af R R RA Z Setting the Receiver Address 1 Using a small screwdriver set the three rotary address switches locations S1 S2 S3 on the receiver Figure 8 p 19 to an address between 001 and 999 Note Do not use 000 as an address for installation If you set the receiver address to 000 it will Return the receiver outputs to their factory defaults indefinitely zone temperature and setpoint outputs 72 5 F 22 5 C Remove all association knowledge VAV SVX01D EN lU Make the receiver unable to associate with a sensor e Read the switches from left to right in the order in which they are numbered S1 S2 S3 e Zero is at the 9 o clock position 2 Make a notation of the address and location of the receiver 19 Wireless Zone Sensor Setting the Sensor Address
78. can result in over conditioning the space Cartridge Failure e fthe actuator is driven closed but there is 1 8 or more play in the indicator move with your finger or the piston has not returned up past the A port or has frozen In either case the cartridge is not closed off completely This will result in over heating or over cooling in the space Actuator Failure e fthe actuator has stopped moving to the closed position when commanded to and there is no play in the lever the actuator has failed VAV SVX01D EN Troubleshooting e Remove the actuator and work the cartridge stem manually If the stem moves freely then only the actuator has failed If the stem is sluggish or stuck the actuator and the cartridge have failed Note Actuator indicator on the side of the actuator should be positioned at the top of the actuator when valve is closed VAV Two Position Hot water failure Check binary outputs In the event that the heat outputs are not energizing properly inspect the following 1 Zone temperature is at or above the heating set point e Increase the UCM heating set point 2 Verify the output configuration in the UCM setup menu e Unit needs to be configured as two position hot water 3 Tracer Summit has the heat output disabled e Check group global and or Tracer overrides to make sure they are not inhibiting heat operation 4 Heatrelays have failed e f VAV UCM is calling in t
79. d can be factory installed Part Number X13790855010 The wiring harness connects the receiver to the UCM 4 2 Part Number X19051692010 Zone Sensor The wireless zone sensor with night setback timed override TOV on cancel button Also can be ordered for Celsius and Fahrenheit setpoint adjustment Part Number X13790492010 F X13790494010 C Digital Wireless Part Number X13790822010 Communication Wiring Communication Link Wiring The Communication Link is the communication wiring between Tracer Summit and all VAV box Unit Control Modules UCM Tracer Summit can be connected to the UCM communication link in a daisy chain configuration Note lt is not necessary for each UCM to be connected to the line in sequential order by address Also multiple communication links may be run and terminated at Tracer Summit However a consistent documented wiring path will help troubleshoot communication problems after installation Field wiring for the communication link must meet the following requirements 1 Communication link wiring must be at least 18 AWG twisted shielded pair wire Shields must be grounded at Tracer Summit or Central Control Panel CCP only More than one ground reference will cause communications failures Shields must be daisy chained Tape the shield atthe last VAV UCM to prevent any connection between the shield and ground Wire specifications are as follows Plenum Cable Stranded tinned copp
80. ddress set to 1 would be UCM Number 65 in In Paver 32 96 ON ON ON ON ON OFF 33 97 OFF ON ON ON ON OFF Figure 2 Rover screen application 34 98 ON OFF ON ON ON OFF 35 99 OFF OFF ON ON ON OFF RoverComm4 36 100 ON ON OFF ON ON OFF File view Tools Help 37 101 OFF ON OFF ON ON OFF 38 102 ON OFF OFF ON ON OFF L gt f 39 103 OFF OFF OFF ON ON OFF x 40 104 ON ON ON OFF ON OFF 41 105 OFF ON ON OFF ON OFF 42 106 ON OFF ON OFF ON OFF Bb TERMINAL LIMIT 43 107 OFF OFF ON OFF ON OFF TERMINAL LIMIT 44 108 ON ON OFF OFF ON OFF 37 TERMINAL LIMIT LEA 45 109 OFF ON OFF OFF ON OFF Other 46 110 ON OFF OFF OFF ON OFF 47 111 OFF OFF OFF OFF ON OFF 48 112 ON ON ON ON OFF OFF Table 6 DIP switch settings for UCM 4 2 46 TE AEE ON Ail ON OEE OEE UCM Dip 50 114 ON OFF ON ON OFF OFF Unit Address 1 2 3 4 5 6 51 115 OFF OFF ON ON OFF OFF 1 65 OFF ON ON ON ON ON 52 116 ON ON OFF ON OFF OFF 2 66 ON OFF ON ON ON ON 53 117 OFF ON OFF ON OFF OFF 3 67 OFF OFF ON ON ON ON 54 118 ON OFF OFF ON OFF OFF 4 68 ON ON OFF ON ON ON 55 119 OFF OFF OFF ON OFF OFF 5 69 OFF ON OFF ON ON ON 56 120 ON ON ON OFF OFF OFF 6 70 ON OFF OFF ON ON ON 57 121 OFF ON ON OFF OFF OFF 7 71 OFF OFF OFF ON ON ON 58 122 ON OFF ON OFF OFF OFF 8 72 ON ON ON OFF ON ON 59 123 OFF OFF ON OFF OFF OFF VAV SVX01
81. e k Ohms 17 0 16 5 16 1 15 7 15 4 15 0 14 6 14 3 14 0 13 6 13 3 13 0 12 6 12 3 12 1 11 8 11 5 11 2 11 0 10 7 10 4 10 2 10 0 9 7 9 5 9 3 9 0 8 8 8 6 8 4 8 2 zone sensor Temperature sensor resistance is measured at TB3 1 and TB3 2 of the zone sensor VAV SVX01D EN S TRANE UCM 4 2 Installation and Wiring AWARNING Hazardous Voltage Disconnect all electric power including remote disconnects before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized Failure to disconnect power before servicing could result in death or serious injury A WARNING Proper Field Wiring and Grounding Required All field wiring MUST be performed by qualified personnel Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described in NEC and your local state electrical codes Failure to follow code could result in death or serious injury Chapter Overview This chapter contains information about the following e UCM 4 2 Power Wiring e Zone Sensor Wiring e Communication Wiring e Switch Settings Selection UCM 4 2 Power Wiring Power Requirements NOTICE Use Copper Conductors Only Unit terminals are not designed to accept other types of conductors Failure to use copper conductors could result in equipm
82. ed to match the DDC UCM 4 2 to the actuator drive time The air valve damper actuator drive time will be automatically adjusted to the type of Trane Unit type selected Min DriveTime Displays the minimum time that the output can be driven This value restricts the change in the mechanical output Until the desired change in position will take at least the minimum drive time the output will not be changed Air Flow KP This is an internal factor used by the PID control loop that modulates the air valve or damper The value is predetermined by unit type and unit size Reset Time his is an internal factor used by the PID control loop that modulates the air valve or damper The value is predetermined by unit type and unit size PWM Heat This is an internal factor used by the PID control loop that modulates the terminal heating The value is predetermined by unit type and unit size Reset Time his is an internal factor used by the PID control loop that modulates the terminal heating The value is predetermined by unit type and unit size Other 34 UCM 2 3 Trane Box Shows whether the UCM is configured as a Trane box By default only a box configured as generic is not a Trane box Heat 20 00 KP 20 00 d Reset Time 500 gt 500 Unit Comfort Manager Close Help Unit Comfort Manager Select the check box to use the VariTrane D best fit configuration Clear the check box to u
83. en a zone sensor thumbwheel is turned to its high end limit indicated by a on the thumbwheel and the ON button is pressed the UCM will initiate a Drive to VAV SVX01D EN command When zone sensor thumbwheel is turned to its low limit indicated by a on the thumbwheel and the ON button is pressed the UCM will initiate a Go UNOCCUPIED command The UCM will maintain the command until the zone sensor set point is adjusted to within the range of 50 to 85 Any zone sensor module that has a thumbwheel and ON TOV button can initiate these commands Notes e The UCM will not send these commands if Zone sensor thumbwheel functions is edited to DISABLE on the UCM setup screen e When 5 is connected to the UCM the UCM will pass the commands to the ICS without taking any control action of its own Since this is true it may take a minute or so after the command is initiated before the UCM actually goes unoccupied or is driven to maximum e The UCM will not generate aTOV signal when a Drive Max or Unoccupied command is initiated Pressing the ON button will not affect the zone temperature reported from the UCM UCM will remain in the Drive Max or Unoccupied status over power failures IF or respectively have been initiated prior to the power failure Note TOV push buttons should be pressed for at least 2 seconds and not more than 15 seconds Flow Sensor The flow
84. ent damage Use at least 16 AWG for power wiring and connect to terminal TB1 1 andTB1 2 24 VAC is required to power the UCM control and has an acceptable voltage tolerance of 20 to 28 VAC Replace the UCM control box cover after field wiring to prevent any electromagnetic interference Note A dedicated 24 VAC 50VA NEC class 2 transformer is recommended to power the UCM When powering multiple UCM s from one transformer polarity must be maintained Terminal TB1 1 is designated positive and terminal TB 1 2 is negative to the unit casing ground The power consumption for cooling only Series F Models VariTrac and VariTrane is 12 VA A VA for the air valve actuator and 8 VA for the board To determine the total VAV SVX01D EN UCM power requirement add the power consumption per stage to the circuit board power requirement For example a Series F unit containing magnetic contactors with three stages of reheat would consume 42 VA Table 4 VA rating for components Style Volt Amps F Style Actuator 4VA Air Valve Actuator C through E Style 12 VA Varitrac Actuator 3 VA Fan Power Fan Output 6 VA Hot Water Proportional 4 VA Hot Water 2 Position 6 5 VA Electric Heater Magnetic Contactor 10 VA Electric Heater Mercury Contactor 12 VA Note VariTrane and VariTrac cooling only Series D and E models consume 20 VA 12 VA for the actuator and 8 VA for the UCM The heating output ratings remain the same
85. er Open Open Thermistor in sensor has failed to Normal value either open or close Open Setpoint potentiometer has Normal value failed to either open or close Open 3 Measure the receiver output resistance by following the procedures e Make sure the black wire GNS SIGNAL and the yellow wire GND POWER are grounded see above for wiring diagrams e Make sure the receiver is powered up Disconnect the SETPOINT wire red and the ZONE wire white from the host unit controller e Measure resistance between the grounded GND SIGNAL wire and either the SETPOINT or ZONE wire Compare resistance measurements to those presented in Table 20 p 50 Table 20 Receiver resistance table Nominal Space Nominal Zone Temperature Zone or Setpoint Temperature Setpoint Output Temperature Output Resistance Resistance 55 F 12 8 17 47 812 0 60 F 15 6 C 15 3kQ 695 Q 65 OF 18 3 C 13 49kQ 597 Q 70 9F 21 1 9C 11 9k Q 5000 VAV SVX01D EN Table 20 Receiver resistance table continued Zone or Setpoint Temperature 75 F 23 9 80 F 26 7 85 29 4 Nominal Space Nominal Zone Temperature Temperature Setpoint Output Output Resistance Resistance 10 5 k Q 403 Q 9 3k Q 305 Q 8 25 k Q 208 Q e When the test is complete reset the receiver address to its previous setting PresstheTest button 55 on the sensor to force re association Confirm assoc
86. er insulated with extruded FEP Conductors cabled and shielded with overall aluminum Mylar tape and stranded tinned copper drawn wire Extruded jacket 300 volt 150 C NEC 725 2 b class 2 type CL2P 25 pF ft Non Plenum Cable Stranded tinned copper insulated with polyethylene Conductors cabled and shielded with overall aluminum polyester tape and stranded tinned copper drain wire Chrome gray PVC jacket 300V 60 NEC type CM 24 pF ft Table 5 Wire capacitance Max Communication Link Wiring Length 1 000 feet 304 8m 2 000 feet 609 6 m 3 000 feet 914 4m Max Wire Capacitance Up to 60 pF ft 196 9 pF m Up to 50 pF ft 164 0 pF m Up to 40 pF ft 131 2 pF m 4 000 feet 1 219 2 m Up to 30 pF ft 98 4 pF m 5 000 feet 1 524 m Up to 25 pF ft 82 0 pF m Note Wire capacitance must comply with this table VAV SVX01D EN UCM 4 2 Installation and Wiring 2 The maximum wire length should not exceed 5 000 Table6 switch settings for UCM 4 2 continued feet 1 524 m 3 Communication link wiring cannot pass between he nit Address 1 2 3 4 5 6 9 73 ON ON OFF ON ON 4 A maximum of 63 UCMs be connected to each 10 74 ON OFF ON OFF ON ON COM Link Daisy chaining is
87. es 2 Select whether to override TUCs or VAVs 3 Click the units you want to override 4 In the list of overrides click the type of override you want to perform 5 Click the Override button The controller automatically enters the service mode and exits the service mode 15 minutes after receiving an override Resetting Diagnostics You can reset diagnostics only for TUCs not units VAV SVX01D EN TRANE UCM Programming and Operation In the device list on the left side of your screen double click the controller for which you want to reset diagnostics Click the Diagnostics button o Click the Reset button Rover Comm4 attempts clear all diagnostics on the controller and a message appears 4 Click OK to close the message and the Diagnostics dialog box You can click the Diagnostics button again to verify which diagnostics have been cleared Saving VAV Program Each VAV unit with a UCM 4 2 has been factory commissioned with a program that can be saved to your hard drive This can be used to save the original program for a backup in case unit needs to be put back to original specifications orto download into a UCM 4 2 DDC controller that has like parameters that has been corrupted 1 Selectthe Configure button and the Configuration screen will appear 3b UCM Programming and Operation Figure 27 Configuration screen save as RoverComm4
88. g can be done on a group basis VAV Single Duct Unit Air Balancing Select a group to balance and give the VAV units a recalibrate command and then the group a flow override Drive MAX command Note If the boxes have not been placed in a group each individual UCM can be overridden to Drive MAX in the Override menu in Rover However this will be more time consuming VAV SVX01D EN TRANE Air and Water Balancing Figure 31 Measured value field Configuration File Setpoints Setup Wireless Advanced Configuration Unit Type VariTrac Rectangular Unit Size 8 12 Inches gt Heat Type None Flow Override Auto gt Fan Tupe Parallel Hot Water Override Local Heat Setpoint ur Parallel Fan Control Flow Configuration Generic gt Auwiliar Input coz Sensor Value 395 Voltage Ret 4 30 Wired Sensor averaged Thermistor gt Vote 1 Cooling Flow Outputs Present Value CFM Measured Value 1 00 Correction Factor Wired Thumbwheel Setpoint Calibration 0 0 Wired one Temperature Value Calibration Download Close Help If reported flow in Rover is different from the measured can be calculated by Rover by entering the measured flow CFM flow hood measurement a cooling flow correctio
89. g set point high limit and the heating set point low limit cap your unoccupied set points which directly impacts energy savings The upper level device is responsible for preventing the resulting set points from being crossed This may happen if the heating set point low limit is above the cooling set point high limit Having the cooling set point high limit and the heating set point low limit set to the factory defaults cooling high limit 102 F 38 8 C heating low limit 43 F 6 1 C should prevent them from impacting field operation High Limit This limit applies to the occupied mode only starting in UCM version 4 1 Prior to version 4 1 the limits would affect both the unoccupied and occupied setpoints Both limits have a range of 30 0 F 100 0 F 1 1 C 378 C The set point limits will be applied to the active heating set point by the UCM but will not restrict operator entry of set points Cooling Setpoints Active The set point cannot be edited and reflects the set point currently being used for cooling temperature control Occupied Set points have a range of 30 0 F 100 0 F 1 1 C 37 8 C If a zone sensor thumbwheel set point is not being used this set point will be used as the VAV SVX01D EN TRANE UCM Programming and Operation UCM s active cooling set point during occupied times The cooling set point must be greater than or equal to the heating set point plus 2 0 F 1 1 C Note
90. h of the battery Note The LEDs will turn Off after 5 seconds to conserve battery strength 3 Record the results in your commissioning statement Figure 14 Testing signal and battery strength SENSOR Signal strength zr al oY a Test v button Push S5 firmly then release Disassociation The receiver removes all stored association information conducts a channel scan and restarts itself if any of the following are true The receiver address is changed from its current setting 001 999 e The receiver receives a disassociation notification from its associated sensor e The receiver does not receive a communication from its associated sensor within 35 minutes 23 TRANE UCM Programming and Operation Chapter Overview This chapter contains information about the following e Accessing Rover Comm4 e UCM Home Tabs At a Glance e UCM Home Tabs Instructions e Entering and Exiting the Service Mode Overriding VAVs e Resetting Diagnostics Accessing Rover Comm4 Rover Overview Rover is aservice tool that allows parameters to be viewed or adjusted in UCM v 2 0 and higher Prior to UCM v 2 0 you would need to use EveryWare to access units that were stand alone operating and programming guide for Rover is EMTX SVX01 EN Rover Comm4 is a software application for monitoring configuring and testing VAV II III IV controllers on Comm4 links Rover
91. he UCM board The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability If no voltage check up stream of controller to see were voltage has been interrupted See complete wiring diagrams Figure 44 to Figure 51 Important For final step check program by downloading good program using Rover see page 468 UCM Communication Loss Procedures In the event that the UCM is not communicating properly inspect the following 1 Incorrect supply voltage No voltage e he green LED indicates power and should be steady ON e Measure the power input toTB1 1 power andTB1 2 Common ground of the UCM board The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability e f voltage check up stream of controller to see were voltage has been interrupted See complete wiring diagrams Figure 44 p 58 to Figure 51 p 65 Communication link polarity is reversed e The yellow LED will be ON indicating a reversed polarity Switch the communication link connection UCM is not addressed correctly e Verify the DIP switch settings on the UCM Communication link signal has interference e Communication link should not be routed near or with any voltage source Incorrect wire used Recommended wire is twisted shielded pair See Chapter 2 for the wiring specificatio
92. he status menu for the valve be open it is not then check UCM Triac output wiring and Relay output e Check J6 to TB1 2 Should have 24 VAC if it does not measure the power input toTB1 1 power and TB1 2 ground of the UCM board The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability Equipment Damage UCM Outputs are switched to ground Do not jumper 24 VAC to J9 J10 or J11 because damage will occur HeatTriac s be checked with purchasing a 24 VAC LED and see if it lights up on call for heat output to be open by UCM If LED does not light up replace UCM 57 TRANE Troubleshooting Wiring Diagrams Figure 44 Wiring diagram for single duct unit that is either cooling only hot water or field installed reheat 58 2 PROP WATER VALVE 24VAC 12VA MAX OPTIONAL FIELD INSTALLED PROPORTIONAL WATER VALVE s ADDRESS SWITCH HHHHHH SHIELDED TWISTED PAIR COMMUNICATIONS WIRING OPTIONAL AUX TEMP SENSOR L FACTORY WIRING FIELD WIRING DAMPER ACTUATOR WIRING ree E HOT HOT OPEN CLOSE GND 24V D D C U C M CONTROL BOARD YEL GRN OPTIONAL FACTORY INSTALLED WIRELESS TB25 2 7833 ZONE SENSOR W COMM JACK REMOTE MTD GIG OPTIONAL FIELD INSTALLED
93. humbwheel is placed in the position and the ON button is pressed the UCM will request to go unoccupied If the Thumbwheel is placed in the position and the ON button is pressed the UCM will request a maximum override Valid Range 50 F 85 F 10 C 29 4 C Fail Max Unocc Calibration The value of the zone temperature sensor calibration offset The UCM adds the offset to the value read by the zone sensor After you add a new offset Rover may take up to 30 seconds to update the displayed temperature Valid Range 10 F 10 F 5 5 C 5 5 Wireless Tab Configuration File Setpoints Setup Wireless Advanced Configuration Zone Sensors Serial Number Receiver Summary Add d Download This tab was used for the old style wireless system that used spread spectrum technology For details on how this can be setup for existing applications using the older style wireless sensor see VAV SVX01B EN UCM 4 0 VAV SVX01D EN Close Help 33 TRANE UCM Programming and Operation Advanced Configuration Tab Figure 26 Advanced configuration tab Air Valve Damper Air Flow Drive Time 60 KP Min Drive Time 500 gt Reset Time UCM 2 3 Trane Box Valve Gain 00 Water Valve Drive Time 125 Valve Flow Constant 64 Multiplier 1 0 VariTrane F PD Min Position 50 Download Air Valve Damper Drive time This adjustment can be us
94. iation and communication by noting LED1 LED2 and LED3 as described in Signal Ouality Test Pressing theTest button 55 on the sensor initiates a signal quality test LED1 LED2 and LED3 respond by indicating excellent marginal or poor signal quality The LEDs can be observed on both the sensor Table 21 p 51 and the receiver Table 20 p 50 Table 21 Signal quality LED1 LED2 LED3 on the sensor User Action LED Display Indicates LED1 Off Normal state None LED2 Off No Test button press LED3 Off LED1 Off Associated no communication with receiver 2 Associated but signal from the receiver after pressing Test button LED1 On LED2 On Excellence signal quality LED3 On Adequate signal margin for reliable Displays for 5 communication seconds then constantly off Press Test Button LED1 Off SS LED2 On Marginal signal quality LED3 On Reduced battery life is likely Displays for 5 seconds then constantly off LED1 Off LED2 Off LED3 On Displays for 5 seconds then constantly off Consider moving the sensor or receiver to a better location Poor signal quality Unreliable communication Strongly recommend moving the sensor or receiver to a better location e fsensor and receiver still do not operate properly replace bad components If unit passes tests check UCM operation 4 Defective VAV UCM Disconnect the receiver sensor wires on the UCM on termin
95. icroprocessor controls DDC VAV This manual discusses only terminal units with Comm4 DDC VAV controls Factory installed DDC VAV controls are available with all single duct terminal units dual duct units as well as parallel fan powered and series fan powered units Two UCMSs are required for dual duct units one for the heating duct and one for the cooling duct The UCM modulates a VAV s damper blade based on a zone temperature measured airflow and airflow set points to continuously control conditioned air delivery to the space The volume of incoming air is monitored and the damper adjusts to provide accurate control independent of the duct pressure The damper modulates between operator airflow set points depending on space conditions Additionally fan and heat outputs may be energized depending on the application Available inputs 6 include a twisted shielded communication link zone sensor auxiliary temperature sensor optional CO2 Sensor optional and Occupy Unoccupy Sensor optional and 24 VAC power Specifications Power Requirements The UCM 4 2 requires 24VAC 50 60 Hz NEC Class 2 power The UCM itself consumes 8 VA Our factory installed devices draw from 3 to 12 VA Typical values are for a damper actuator 10 to 12 VA for an electric heat contractor and 6 VA for a fan relay NEC Class 2 transformer should be sized to handle the total VA of all devices The binary outputs are rated at steady state
96. ier to 1 0 e Disable the control offset e Use the control action as determined by the auxiliary sensor auxiliary temperature is compared to the zone temperature If the supply air temperature is 10 F 5 5 C greater than the zone temperature then the control action will be heat If the supply air temperature is less than or equal to the zone temperature the control action will be cool If the supply air temperature is between the zone temperature and the zone temperature 10 F 5 5 C zone temperature lt supply air temperature lt zone temperature 10 F 5 5 C the control action remains the same and the UCM controls to the minimum flow set point If an auxiliary sensor is not installed and the VAV unit is not underTracer Summit control the UCM will retain the last control action in effect 41 TRANE Air and Water Balancing Chapter Overview This chapter contains information about the following e Air Balancing e Water Balancing Air Balancing After the unit has been mounted and all electrical and duct connections have been made the air distribution system should be balanced The proper variable air volume balancing procedures depend on the type of VAV system used and the options specified on the Vari Trane unit This section will cover the basic balancing procedures and calibrations needed to balance an air distribution system using Vari Trane units This section suggests only one balancing procedure
97. imed Override TR Time since last transmission was received UCM Unit Control Module UL Underwriter s Laboratories VA Voltage Ampere VAC Voltage Alternating Current VAV Variable Air Volume ZSM Zone Sensor Module 66 VAV SVX01D EN TRANE Trane optimizes the performance of homes and buildings around the world A business of Ingersoll Rand the leader in creating and sustaining safe comfortable and energy efficient environments Trane offers a broad portfolio of advanced controls and HVAC systems comprehensive building services and parts For more information visit www Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice 2014Trane All rights reserved VAV SVX01D EN 13 Mar 2014 We are committed to using environmentally Supersedes VAV SVX01C EN May 2010 conscious print practices that reduce waste am Ingersoll Rand
98. ing and Operation 6 Theuser may search by the address of a single UCM or scan the range of UCM addresses specified Note Address for VAV UCM s range from 65 127 7 Select the desired device or range of devices and click the Scan button You ll be able to watch as the applications scan for the selected data Note The numbers selected for each device 65 127 can be referenced back to address selection for the UCM s See Table 6 p 13 Dip Switch settings Figure 19 Scanning for Devices screen Scanning for Devices Scanning for Device 34 Figure 21 UCM home tabs RoverComm4 Device 65 VAV TERMINAL UNIT UCM4 8 Oncethescanis complete the results will populate the device tree on the left hand side of the Rover Comm4 screen Figure 20 Rover Commd4 screen RoverComm4 File View Tools Help P 9 Access the desired UCM from the device tree UCM Home Tabs At a Glance File View Tools Help X TUEs Status Setpoints Setup Wireless Advanced Configuration 65 TERMINAL UNIT UCM4 Unit Info r Ausiliary Input Configure 66 VAV TERMINAL UNIT UCM4 Unit Type VariTrac Rectangular Type C02 Sensor 97 TERMINAL UNIT UCM4 Diagnostics Other Software Revision 4 2 Value 1178 Setpoints Enter Service Mode Active Heating 50 0F Position 23 Active Cooling 850 Flow 0 Reset Zone Sensor 75 6 F Zone
99. ion comes up with the still attached UCM s If it does not you know the bad UCM s are in the existing attached link If communication does come up then the issue is further down the link Repeat until UCM s bringing down comm link are found 9 Defective UCM board Wired Zone Sensor Failure Procedures In the event that the UCM reports an incorrect zone temperature properly inspect the following 1 Actual room temperature is higher or lower than what the UCM reads e Check the location and installation of the zone sensor Change the calibration factor in the UCM setup screens Note If Zone sensor is off more than 2 degrees continue to number 2 2 Zone sensor wired incorrectly e Check wiring for the correct connections See Chapter 2 for further details on zone sensor wiring 3 Defective zone sensor e Disconnect the zone sensor terminal plug from the UCM and using an Ohmmeter measure the resistance across the terminals 1 and 2 Compare the resistance to temperature using Table 3 The resistance should shown value should be within 2 degrees near those measured with an accurate temperature measuring device If not the zone sensor needs to be replaced 4 Defective wiring or UCM e With wires still connected to VAV UCM disconnect zone sensor wires and check voltage DC from 47 TRANE Troubleshooting wires that were connected to terminals 1 and 2 of zone sensor You should measure 5VDC If you do
100. is based on temperature and Zone temperature is at or above the heating set point plus heating offset on units configured as temperature control A factory set differential of 0 5 F 0 3 C exists to prevent short cycling e Increase the UCM heating set point causing fan to be cycled on e Lower the Heating setpoint by 6 and the fan should cycle off If the fan control is based on flow the unit fan will be energized whenever primary airflow is below this set point For this parallel fan configuration the fan control point if specified in a percentage of unit airflow must be set between 15 and 30 of the units cataloged airflow to assure proper operation A differential of 5 exists to avoid excessive fan cycling e Override damper closed until CFM is below enabled flow setpoint e See if fan cycles on Override damper open until CFM is above enabled flow setpoint fan should cycle off If VAV UCM is calling in the status menu for the Fan to be on and itis not then check UCM Triac output wiring and Relay output Check J8toTB1 2 Should have 24VAC if it does not if not measure the power input toTB1 1 power and VAV SVX01D EN Troubleshooting TB1 2 ground of the UCM board The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability e be checked with purchasing a 24VAC LED and see if it lights up
101. ive and occupancy is detected the UCM shall transition to the occupied mode of operation Upon loss of the occupancy indication from the occupancy detector the VAV UCM will revert back to unoccupied mode However when configured for an occupancy sensor and communications are active loss of communications does not result in the VAV UCM defaulting to occupied mode Cooling Flow Present Value This present value shows the current flow being reported by the UCM Measured Value If the present value of flow is incorrect the operator can enter the Measured value and Cooling Flow Correction factor will automatically be recalculated Note This can be used to have the correct present value at the UCM as compared to the actual CFM at the inlet of the unit Correction Factor Value displayed to show how much the flow input needed to be corrected Auxiliary Input 32 Type When the UCM version is 4 0 or higher the analog input labelled A CO2 can be used to monitor either an auxiliary temperature sensor or a C02 sensor Aux Input Select defaults to AuxTmp SensorThis entry determines the configuration of the A CO2 input on terminal TB3 5 of the UCM Selecting AUXTMP SENSOR configures the input to use an auxiliary temperature sensor Selecting C02 Sensor configures the input to use a C02 sensor They are mutually exclusive Value When the UCM version is less than 4 0 or when the UCM version is 4 0 higher and the Auxiliary Input Type
102. lows the user to monitor configure and test Comm4 Figure 17 Rover service tool Rover Service Tool Welcome to the Rover Service Tool Main Menu To proceed click the button next to the application you want to start Comm 4 Service Tool Use this tool to monitor configure and test Cormm devices Comm5 Configuration Only Service Tool Use this tool ta monitor configure and test Comm devices Comm5 Service Tool Use this tool ta manage Comm networks and to monitor configure and test Comm devices Comm5 Flash Download Wizard Use this tool ta upgrade the firmware in Cammb devices that support Hash memory Comm5 Configuration Builder Use this tool to create and edit Comm device configurations while working offline Comm and Water Balancing Tool Use this tool to simplify the air and water balancing process on systems with Comm devices Registration 5 Rover Comm4 will launch Click to launch the Scan for Devices dialog box Figure 18 Rover Comm4 application with the Scan for Devices dialog box 4 File View Tools Help 270 2 Scan for Devices Scan Single Device 32 Scan Multiple Devices First Device 32 E Last Device 127 Clear Device Tree Scan Ready 5 Flyer d econom Interac Cancel Help _ VAV SVX01D EN Lr 2b TRANE UCM Programm
103. n adjustable and are used to show values only Note The Setpoints tab will be defined in programming the configuration menus 27 TRANE UCM Programming and Operation Wireless Tab Note This tab displays the older style wireless not to be confused with the new wireless that is being currently offered When the UCM version is 3 0 or higher this tab displays the wireless sensor serial number assignments Up to five wireless sensors may be assigned to a UCM Four sensors may be chosen as averaging one sensor can be chosen as backup The backup sensors are optional Backup sensors for temperature and setpoint inputs only affect the UCM if all averaging sensors fail Backup button functions are always used Any combination of backup strategies 15 valid For version 4 0 UCMs or higher if the hardwired sensor is configured as not present then the hardwired zone temperature failure flag will not be set as long as at least one wireless sensor is transmitting a valid zone temperature Likewise if the hardwired sensor is Figure 22 Select the configure button 4 RoverComm Device 65 TERMINAL UNIT UCM4 configured as not present then the hardwired setpoint sensor failure flag will not be set as long as at least one wireless sensor is transmitting a valid setpoint Advanced Configuration Tab The UCM Home Tabs and their screens that are shown are non adjustable and are used to show values only The advanced
104. n in the measured value field See above Figure 31 p 43 Figure 32 UCM set point menu Configuration E3 File setpoints Setup Wireless Advanced Configuration Cooling Setpoints Active 55 0 F Occupied 720 Unoccupied 95 0 Lows Lirit 50 High Lirit e Outdoor Air Required j 120 tape sE 920 CFM Unoccupied Min Heating 23 x 230 S Min Local Heat 48 E 2 480 CFM Heating Setpaoints Active 0 0 F ccupied 68 0 Unoccupied 50 0 Low Limit High Limit 78 Flow E E FanContolSetpont 47 Ez 470 Control Offset Download Clore Help VAV SVX01D EN 43 TRANE Air and Water Balancing 1 Adjust each VAV box maximum flow set point required for its zone using the UCM set points menu See Figure 32 p 43 Note This could already be done in the factory in its commissioning process 2 After balancing a group box return that group box flow override to AUTO Figure 33 Rover configuration UCM setup menu Configuration File Setpoints Setup Wireless Advanced Configuration 3 Continue to the next group box repeating VAV unit air balancing procedures until each unit is delivering the correct CFM 4 Upon completion of the VAV air balancing remove all overrides 5 Initiate a recalibrate command Water Balancing Unit T
105. nded for stand alone applications requiring auto changeover VAV SVX01D EN e UCM 4 2 adds a binary 24VAC dry contact input It can be configured either as a generic input or as an occupancy detector input e UCM 4 2 adds a VariTrac Bypass Damper mode of operation In this mode supply air temperature and supply air pressure is made available on the Comm4 link The damper position is a Comm4 control parameter Commd4 configurable failsafe position was added The supply air temperature uses a new S input TB3 7 The use of this new input is mutually exclusive with the zone temp input TB3 1 e UCM 4 2 now assumes the hot water valve is closed after reset This prevents a reset during hot water override from causing the valve to stop moving This also changes the behavior after reset when there is a reheat demand the hot water valve now opens from assumed closed position to the desired reheat position e nawirelesssystem the hard wired sensor can now be configured as not present The hard wired sensor failures will not be reported as long as at least one wireless zone sensor is reporting valid temperature values Note This is an older wireless system that has been obsoleted and notthe one discussed in the wireless zone sensor section Figure 1 UCM 4 2 board layout X15690252 08 sl f fd f fd fs I 4 r T I oji M Er wer 5 I ach eet a 2 J
106. not have 5VDC then see if the VAV UCM is outputting 5VDC This can be done by disconnecting the wires on the VAV UCM on terminals 1 andTB3 2 and measure the VDC It should be 5VDC If you have 5VDC at the UCM the wires going to the zone have an open If 5VDC is not present check incoming power to the UCM board on TB1 1 andTB1 2 Should measure 24 VAC 10 If you measure the proper voltage at 1B1 1 TB1 2 and no voltage at 1B3 1and 2 replace UCM Note If no voltage atTB1 1 andTB1 2 see UCM failure procedures Zone sensors shorted out e Check the resistance across the wires Disconnect wires from UCM and zone sensor making sure the ends are not touching each other and measure resistance It should be infinity or no conductivity If lower resistance is shown wires are shorted together and needs to be replaced More than one UCM connected to a single zone sensor e Cut jumper wires W1 and W2 on all slave units If jumper is not cut it will give erroneous temperature value Table 14 Zone sensor temperature resistance 48 Thermostat Thumbwheel Sensor Resistance Temp 9 Resistance k Ohms Ohms 55 792 17 0 56 772 16 5 57 753 16 1 58 733 15 7 59 714 15 4 60 694 15 0 61 675 14 6 62 656 14 3 63 636 14 0 64 617 13 6 65 597 13 3 66 578 13 0 67 558 12 6 68 539 12 3 69 519 12 1 70 500 11 8 71 481 11 5 72 461 11 2 73 442 11 0 74 422 10 7 75 403 10 4 76 383 10 2 77 364 10 0 78 344 9 7 79 325
107. ns for the UCM e Besureallotherrecommendedactionslisted above have been taken Disconnect the communication link from the board and check the board s ability to communicate with the Trane Rover EveryWare Software If communications do not exist the board is assumed defective UCM not correctly addressed or two UCM s addressed the same e Check the DIP switches on the first box and remove the communication link from the second VAV box VAV SVX01D EN Troubleshooting 7 Communication wiring error shorts open or reversed polarity Remove the communication link past the first box and verify the polarity Check resistance across the communication wires for possible shorts or open circuitry 8 Communication link failure down One UCM failure can bring down all UCM communications The link is set up as a daisy chain see chapter 2 for details If whole link is down remove sections of the comm link from UCMs to isolate portions of the link to find bad UCM s Start at the BCU CCP and remove comm link from all units except first UCM and see if you can communicate with the one UCM If the UCM cannot communicate with BCU CCP check UCM with Rover If you can communicate with the UCM with Rover then the issue is in the BCU CCP If you can communicate with UCM the problem is further down Go half way down the link from the BCU CCP and remove the downstream half of the link and see if the communicat
108. nsor 3 The address test mode on the receiver and 4 A common volt ohm meter Table 16 User Action None None None Diagnostics LED1 LED Display 3 LED1 Off LED2 Off LED3 1 blink pattern repeated continuously LED1 Off LED2 Off LED3 2 blink pattern repeated continuously LED1 Off LED2 Off LED3 3 blink pattern repeated continuously LED2 LED3 on the receiver Indicates Disassociated Receiver is not associated waiting for a sensor Receiver lost communication with sensor Receiver has no devices on its wireless personal area network Association with a device has been manually removed Address set to 000 Address not set to between 001 999 Not Configured Receiver configuration properties not properly set defective receiver a 1 Blink pattern is On for s Off for s with 2 s Off between repetitions 1 If the wireless zone sensor system failure e Observe LED5 on the receiver LED5 will be On solid green whenever the receiver is powered e Make sure the receiver is properly grounded Both the black wire GND SIGNAL and the yellow wire GND POWER must be grounded 49 TRANE Troubleshooting Press the Test button 55 the sensor LED5 should turn On solid green indicating proper battery strength LED1 LED2 and LED3 will indicate signal strength See table 2 Table 18 Signal quality LED1 LED2 LED3 on the
109. nt unoccupied set points The fan control point is not utilized on series units On electric heating and hot water heating units the fan and heat are energized at the unoccupied heating set point The minimum cooling flow set point is reset to zero unless minimums are being enforced by a group override A series fan will be energized anytime the air valve s position is greater than 096 Heating If the control action is edited to HEAT the UCM controls the air valve as a heating source rather than cooling The unit fan remains operational Unit heat on an electric heat unit is locked out but remains active on hot water units Flow Control Override Flow control may be overridden by any of the following commands e Drive Air Valve Fully Open The air valve will be driven fully open Fan operation is unaffected but heat outputs are locked out e DriveAirValve Fully Closed The air valve is driven fully closed The fan and heat outputs are locked out e Drive Air Valve to Minimum Flow The air valve is driven to the minimum airflow set point The fan and heat outputs remain operational 40 e Drive Air Valve to Maximum Flow The air valve is driven to maximum airflow set point The fan and heat outputs remain operational Heat Control Override Heat control can be disabled locking out heat outputs Fan Control Override Fan control override does not affect fan operation on series fan powered units Control Offset Cont
110. of the 24VAC input The UCM cannot be powered from a common 24 VAC transformer that is supplying power to a device containing a full wave rectifier bridge in its power supply The acceptable voltage is 20 to 28 VAC 24 VAC cataloged However voltages at either extreme may result in increased system instability e Verify that communications wiring has properly been terminated atTB2 1 and TB2 2 Polarity is very important on the communications link e Verify that the zone sensor connections are correct as detailed in the UCM wiring chapter e Verify that the proper unit DIP switch settings have been set on each UCM e Verify that the tubing is properly connected to the transducer Light Emitting Diode LED Operations The UCM has one green LED located near TB3 and one yellow LED located near TB2 on the UCM circuit board These LED s are used to help diagnose communication yellow or circuit board problems green The green LED red on older boards is a power indicator It is steady on when the power is on and the software is functioning correctly If it blinks with a 1 second on 1 second off cycle when power is applied then the board is not functioning and must be replaced VAV SVX01D EN Table 1 Green LED power function indication LED State Indication On Board functioning correctly Blinking Board malfunction Replace Board Off Board does not have power The yellow LED functions as the communication indic
111. omponents During installation testing servicing and troubleshooting of this product it may be necessary to work with live electrical components Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury Chapter Overview This chapter contains information about the following e SP Diagnosing the Problem e Diagnostic Log Diagnostic Log The Diagnostic Log reports diagnostic and informational modes items that are not in the unit s normal operation Figure 34 Diagnostic log S TRANE Diagnostic Table e Troubleshooting Procedures e UCM Failure Procedures e UCM Communication Loss Procedures Wired Zone Sensor Failure Procedures e Wired Zone Setpoint Failure Procedures Wireless Zone Sensor Failure Procedures e Airflow Failure Procedures e Auxiliary Temperature Sensor Failure Procedures Auxiliary C02 Sensor Failure Procedures e VAV Damper Failure Procedures e VAV Series Fan Failure Procedures VAV Parallel Fan Failure Procedures Trane Honeywell Proportional Valve Check Out Procedures RoverComm4 Device 65 VAV TERMINAL UNIT UCM4 File View Tools Help uk d T TUC Status Setpoints Setup Wireless Advanced Configuration 65 TER
112. ore leaving the factory Any claims for damage incurred during shipment must be filed with the carrier Storage When any component of the VAV system and or field installed accessories must be stored for a period of time prior to being installed they must be protected from the elements The storage location temperature should be between 40 to 150 F 40 to 65 6 C and the relative humidity should be 1096 to 9096 non condensing The warranty will not cover damage to the VAV system or controls due to negligence during storage A controlled indoor environment must be used for storage VAV SVX01D EN S TRANE VAV Start Up Check Out Procedure Chapter Overview This chapter contains information about the following e Unit 4 2 Pre Power Check Out e Light Emitting Diode LED Operations Zone Sensor Check Out UCM 4 2 Pre Power Check Out AWARNING Live Electrical Components During installation testing servicing and troubleshooting of this product it may be necessary to work with live electrical components Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury e Check the supply voltage atTB1 Proper polarity must be maintained TB1 1 is the hot side andTB1 2 is the ground side
113. outputs 1 and 2 If not controlling a fan output 3 energizes Note For the Max Hot Water Override to be effective the user MUST enable unit heat VAV SVX01D EN TRANE UCM Programming and Operation The UCM will maintain the Max hot water override condition over power failures The only way to cancel a Max HotWater Override is to clear the Max HotWater Override check box If the unit does not have 1 3 stages hot water or proportional hot water and aux output will be grayed out and non selectable Local Heat Setpoint When the UCM version is 4 0 and the unit type is not Bypass Damper Rectangular or Bypass Damper Round this value is used to determine whether the Present Cooling Flow is compared to the Min Local Heat Flow setpoint or to the Min Heat Flow setpoint to determine when terminal local heat is allowed Unit Size The unit size is dependent on the unit type Select the unit size from a predetermined list The unit size for VariTrane C VariTrane D VariTrac and VariTrac Round type units are designated by their flow size using the appropriate units CFM CMS or L S The unit size for VariTrane F Round VariTrane F Rectangular VariTrac Rectangular Bypass Damper Round and Bypass Damper Rectangulartype units are designated by the dimensions in inches oftheir blade dampers Flow Override The entry in this field has the highest priority of all flow overrides group binary inputs or upper level s
114. ows a typical wiring diagram for the redesigned UCM hardware new service part number is BRD04939 07a A K J Unum EP A MUS LJ We x up SSS T i 1 e 2 gt LARA GND i Water Valve Override Each UCM that has proportional or staged hot water heat outputs can be edited to override the water valve to its maximum position Ventilation Set Points and Ratio Calculation Set point values needed for a space to satisfy indoor air quality requirements are provided A resultant ventilation ratio can be used to calculate an air handler s outside air damper minimum position or other control strategies General Information Water Heat Output Configuration UCMSs that have hot water heat outputs can be configured for normally open or normally closed Zone Sensor Functions Zone sensor functions now include air valve drive to maximum use unoccupied set points timed override and cancel timed override Slaving of Zone Sensors Up to three 3 UCM 4 2 may be connected to a single zone sensor Generic UCM Capability UCM 4 2 can be configured to control non Trane VAV boxes Shipping Each VAV product and its service literature are shipped in the same package When unpacking make sure that the literature is notlostor discarded with the packing material Visually inspect the individual components for obvious defects or damage All components are thoroughly inspected bef
115. oximately 14 days of operation remain before the battery is too weak to power the sensor Note 1 Blink pattern is On for s Off for 3 4 s with 2 s Off between repetitions Figure 37 50 FACTORY INSTALLED WIRELE SS UCM or El Board CND 24V Note When checking signal strength both LED1 and LED3 on the receiver and sensor should illuminate in unison if the sensor and receiver are associated Use this feature to confirm association If not associated see setup procedures in Wireless chapter If unit still does not work proceed in checking Receiver and sensor with testing procedures below 2 Procedure for Testing the Receiver e Make sure the receiver is powered e Setthe receiver address 000 to force the zone temperature output and zone temperature setpoint output to their test mode values see Table 19 p 50 Table 19 Output failure modes of operation Zone Temperature Zone Setpoint Situation Output Output 11 17 72 5 F 451 Q 72 5 Receiver address 000 22 5 9C 22 5 indefinitely indefinitely Receiver address 001 to 999 Receiver has powered up but has not received a communication from sensor Receiver address 001 to 999 Receiver does not receive a communication within 35 minutes from the sensor it is associated with 11 17 72 5 22 5 9C 451 Q 72 5 22 5 9C Open Open Receiver has no pow
116. places Rover Comm4 in command of the controller Controllers that are in the service mode appear in bold in the device tree on the left side of your screen More than one controller can be in the service mode at one time You can place a controller in the service mode manually or let Rover Comm4 do so automatically when you start an override Controllers exit the service mode automatically 15 minutes after the last override or when you manually release them To enter the service mode 1 Connect to the Comm4 link and scan for devices See Accessing Rover Comm4 p 24 2 Inthe device list on the left side of your screen double click the controller that you wantto place in the service mode 3 Click the Enter Service Mode button While the controller is in the service mode it appears in bold in the device list To exit the service mode do one of the following e Waitfor 15 minutes Rover Comm4 does not need to be online with the controller For each controller in the service mode click the Exit Service Mode button Overriding VAVs When you override a controller Rover Comm4 automatically places the controller in the service mode The controller is automatically released from the service mode after 15 minutes or when you click the Exit Service Mode button for the device You can manually release overrides by selecting the appropriate release command in the Override dialog box 1 On theTools menu click Overrid
117. r with voltmeter e Voltage needs to be between 20 to 26 VAC nominal 24 VAC 3 If proper voltage is measured at incoming power you have no VDC output at J3 6 and J3 5 replace sensor If no voltage check up stream of controller to see were voltage has been interrupted See Figure 44 p 58 to Figure 51 p 65 for correct unit diagrams VAV Damper Failure Procedures In the event that the air valve is not modulating properly inspect the following 1 Tracer Summit or Rover has enabled an override function in VAV UCM e The overrides are Open Closed Min or Max Disable all overrides Note See UCM programming and operation chapter to be able to release override with Rover 53 TRANE Troubleshooting e UCM is going through a recalibrate reset command This is shown in the diagnostic log in Rover e Wait for calibration to finish Zone temperature is greater than the heat set point or less than the cool set point e Change the heat and or cool set points Actuator not driving full drive time e Drive time in advanced configuration not set at 90 seconds on current Varilrane units or 60 seconds for varitrac units e Adjust to correct damper travel time using Rover software See Operation and Programming chapter e Damper actuator loose on shaft e Tighten damper actuator set screw to damper shaft e Measure the power input toTB1 1 power andTB1 2 ground of the UCM board The supply voltage should be
118. re energized on the following schedule VAV SVX01D EN TRANE Sequence of Operations Table 11 Heat stages Stage point ON Switch point OFF Switch 1 At the heating set point HC heat set point 2 1 F below the heat set 0 5 F below the heat set point point Whenever the fan is energized the primary airflow is controlled at the Heating Minimum Flow set point Override Conditions Parallel Fans The UCM occupied controls can be overridden by the following override commands Unoccupied Ifthe control mode is unoccupied the unoccupied cooling and heating temperature set points are used for temperature control Fan and heat outputs are activated at the unoccupied heating set point Heating If the control action is HEAT the UCM controls the air valve as a heating source rather than cooling Fan and heat outputs are disabled for parallel units with electric heat If the heat type is hot water heat then the fan will remain on if the heat is on during the heating control action Flow Control Override Flow control may be overridden by any of the following commands Drive Air Valve Fully Open The air valve will be driven fully open Fan and heat outputs are disabled e Drive AirValve Fully Closed The air valve is driven fully closed Fan and heat outputs are disabled e Drive Air Valve to Minimum Flow The air valve is driven to the minimum airflow set point The fan and heat outputs remain
119. reading flow from 596 to 11096 of cataloged CFM Release the box to auto and perform any necessary balancing work See Air and Water Balancing p 42 for details Figure 39 Sensor signal vs airflow delivery 52 Flow Sensor DP In g 0 01 Check the tubing for reversal and or leaks Checkthe flow ring for plugged holes Blow out with compressed air if necessary Wrong unit size downloaded into the UCM setup menu Verify that the actual unit size matches the unit s nameplate Poor inlet configuration e Trane recommends 11 2 duct diameters of straight duct before the inlet of the box a 12 inch box should have 18 of straight run duct before the inlet To determine whether or not the transducer has failed perform the following steps Check the 24 volts AC supply atTB1 1 andTB1 2 on the UCM board Voltage should be between 20 volts AC and 28 volts AC If voltage not available see UCM failure procedures Read the input voltage to the transducer from the UCM controller between the green and red wires on J3 of the UCM board The voltage should be 0 C fm Check to see if flow has been established If flow not established or inaccurate proceed to Step 2 2 The tubing or flow ring is off reversed plugged or has a leak Z Check with a magnehelic gauge and compare with the delta pressure DP chart located on the VAV box 1 000 10 000 between 4 50 volts DC and 5 50
120. ring diagram e Should measure less than previous reading Continue process until all selector switch positions have been checked to find any dead spots in selector switches e funit ECM board fails any of these tests replace board If ECM is found to be good but motor still does note operate contact VAV technical support Figure 43 ECM Fan Powered by GE ECM Motor 1038 a RPM FLOW INDEX Fan Adjust E Evolution I Set Flow Index CONTROLS INC 0 100 wWww qotoe wv VAV Electric Heat Stage s Failure Procedures In the event that the heat outputs are not energizing properly inspect the following 1 Zone temperature is at or above the heating set point e Increase the UCM heating set point 56 2 Verify the output configuration in the UCM setup menu e Unitneedsto be configured as 3 stage Electric heat 3 racer Summit has the electric heat output disabled e Check group global and or Tracer overrides to make sure they are not inhibiting heat operation 4 Minimum heating CFM is not being met airflow is too low ncrease the airflow or lower the minimum heating flow 5 Heatrelays have failed e f VAV UCM is calling in the status menu for the electric heat to be on and it is not then check UCM Triac output wiring and Relay output Check J8toTB1 2 Should have 24VAC if it does not measure the power input toTB1 1 power andTB1 2 ground of the UCM board The supply vol
121. rol Override Flow control may be overridden by any of the following commands e Drive Air Valve Fully Open The air valve will be fully open and heat outputs disabled e Drive AirValve Fully Closed The air valve is driven fully closed and heat outputs disabled e Drive Air Valve to Minimum Flow The air valve is driven to the minimum airflow set point The heat outputs remain operational e Drive Air Valve to Maximum Flow The air valve is driven to the maximum airflow set point The heat outputs remain operational Heat Control Override Heat control can be disabled locking out heat outputs Control Offset Control offset may be enabled which adjusts the edited cooling and heating set points Recalibrate Reset The recalibrate function can be enabled If enabled the unit will perform a recalibration VAV SVX01D EN Fan Powered Units Table 10 Fan actuation schedule FAN TYPE OCCUPIED UNOCCUPIED OFF Series ON if valve closed AND reheat off Cool mode ON if zone temp Cool mode OFF heating set if zone Parallel point fan offset temp gt heating based on fan offset set point Heat 2 Pid Temperature 0 5 F mode fan off Heat mode fan unless reheat is off unless reheat on is on Cool mode OFF Cool mode ON if if flow gt flow lt fan set fan set point point OR if flow lt 5 AND Parallel active minimum flow gt active OFF unless local based on Flow flow set point minimum reheat is on
122. rol offset may be enabled which adjusts the edited cooling and heating set points Recalibrate Reset The recalibrate function can be enabled Zone Sensor Functions The zone sensor utilizes a thermistor element to measure zone temperature The zone sensor has the following options Zone Temperature Each zone sensor module includes a zone temperature sensor Set Point A UCM will only use the zone sensor thumbwheel set point during occupied time if Zone sensor thumbwheel functions is edited to ENABLE on the UCM setup screen ON Timed Override TOV and CANCEL Timed Override TOV The ON TOV and CANCEL TOV commands can be issued by pressing the ON or CANCEL buttons on any of the UCM zone sensor modules e When an ON button on a zone sensor is pressed shorting the zone temperature sensor circuit the UCM will set a TOV signal clear the TOV cancel signal if it is set and start the two hour timed override timer signal will be maintained for two minutes e When a CANCEL button on a zone sensor module is pressed for at least two seconds the UCM must set a TOV cancel signal clear the TOV signal if it is set and set the timed override timer to zero Pressing any zone sensor module s ON or CANCEL button will not affect the zone temperature reported from the UCM Note TOV push buttons should be pressed for at least 2 seconds and not more than 15 seconds Drive to Max and Go Unoccupied Wh
123. se the Generic best fit configuration This check box applies to UCM versions 4 0 and higher When aVariTrane F style UCM orVariTrac Rectangular UCM is programmed it is also configured to its best fit to a generic style or VariTrane D style box Using this method newer boxes can be used as replacements or to expand legacy systems Note The Command Unit and Comfort Managers do not recognize a generic unit type Valve Gain This is an internal factor used by the PID control loop that modulates the air valve or damper The value is predetermined by unit type and unit size Water Valve Drive Time he drive time in seconds to stroke the water valve from 0 to 100 Valve Flow Constant his is an internal factor used by the PID control loop that modulates the air valve or damper The value is predetermined by unit type and unit size IAQ Mlultiplier This value is usually sent by the ICS system to adjustthe minimum flow setpoint When the value is greater than 1 0 the VariTrac energy saver feature to ignore minimum flow is ignored and the minimum flow is enforced at the unit controller VariTrane F PD Min Position The minimum damper position for aVariTrane F style box when it is operating in the pressure dependant mode Valid range 0 to 100 VAV SVX01D EN Entering and Exiting the Service Mode Controllers must be online and in the service mode to receive an override The service mode disables control from Tracer and
124. t mode until flow signal regained For UCM 4 if flow input is open or shorted the flow failure flag will be set and pressure dependent mode will be used UCM 3 3 is the only version that sets the failure flag if the valve is flowing too much air gt 110 or 150 for series C LOPA Fae A ma 1 59PM Table 13 Failure parameters and Comm 4 UCM actions Sensed Parameter Failure Criteria Action Taken Auxiliar Tracer supplied data y Open or short used for auto Temperature changeover logic For UCM 4 with the aux input configured for C02 mode if the C02 inputis cota ink d c shorted or reading below 200 ppm the Failed C02 sensor failure flag will be set For UCM 4 in bypass Supply Air damper mode if the Temperature b SAT input is shorted VariTrac Bypass P open the Failed SAT Damper mode sensor failure flag will be set For UCM 4 in bypass Supply Air damper mode if the Pressure a au saham SAP input is shorted or VariTrac Bypass open the Failed SAP Damper mode sensor failure flag will be set a UCM 4 0 and above will not detect an open Instead it will report 258 ppm b New to UCM 4 2 UCM Failure Procedures In the event that the UCM is not operating properly inspect the following e Incorrect supply voltage No voltage VAV SVX01D EN The green LED indicates power and should be steady ON Measure the power input toTB1 1 power and TB1 2 ground of t
125. t of the receiver and the sensor set is critical to eceiver an ensor proper operation In most installations distance is not the limiting factor for proper radio signal quality It is more greatly affected by walls barriers and general clutter For best radio transmission range and reliability wherever Choosing a location for mounting the sensor possible mount the receiver and sensor in line of sight Try Setting the rotary address switches on the receiver and to minimize the number of barriers between the pair of on the sensor devices In general sheetrock walls and ceiling tiles offer little restriction to the propagation of the radio signal throughout the building concrete or metal barriers offer The following procedure list shows the recommended order for installation e Replacing and securing the receiver cover e Powering the sensor and associating the sensor to the the most restriction he transmission range for the sensor receiver is as follows e Applying power to the receiver Open range 2 500 ft 762 m packet error rate 2 e Testing signal and battery strength e Usable range 200 ft 61 m e Disassociation e Typical range 75 ft 23 m 18 VAV SVX01D EN Ambient considerations Avoid locations that are outside the operating temperature and humidity range see Table 14 p 48 Location Considerations for the Sensor When selecting a location for the sensor consider both thermal and radio transmission char
126. t the following Note The ECM controller has 4 wire pin connector that has an enable binary output and a Variable speed analog output Incorrect supply voltage No voltage 5b TRANE Troubleshooting e Measure the power input to 24VAC terminal and Common ground terminal of the ECM board The supply voltage should be between 19 2 and 28 2 VAC 24 VAC cataloged However voltages at either extreme may result in system instability e floworno voltage check up stream of controller to see how voltage has been interrupted See complete wiring diagrams Figure 50 p 64 and Figure 51 p 65 2 Testing Binary Output e Measure voltage from White to Green wire on connector e Should be between 9 to 30VDC If not replace ECM 3 Testing Analog variable speed output e On ECM DCU change board selector switches to 0 on each one of the switches to give 100 output signal On ECM VCU adjust potentiometer until LED s read a 100 output e Measure voltage from green to red wires on 4 pin connector and document See Figure 50 p 64 and Figure 51 p 65 for correct unit wiring diagram Should measure above 9VDC Change ECM DCU board selector switches to 9 on tens digit an 9 on units digit to give a 9996 output signal On ECM VCU adjust potentiometer until LED s read a 9996 output Measure voltage from green to red wires on 4 pin connector and document See Figure 50 p 64 and Figure 51 p 65 for correct unit wi
127. tage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability HeatTriac s be checked with purchasing 24 VAC LED and see if it lights up on call for Heat stage UCM If LED does not light up replace UCM Equipment Damage UCM Outputs are switched to ground Do not jumper 24 VAC to J9 J10 or J11 because damage will occur Move electric heat relay wires from UCM and apply 24 VAC directly e Electric heat stage should energize If it does not check wiring safeties and electric heat contactor Replace components as necessary VAV Proportional Hot water failure Check binary outputs In the event that the heat outputs are not energizing properly inspect the following 1 Zone temperature is at or above the heating set point e ncrease the UCM heating set point 2 Verify the output configuration in the UCM setup menu e Unit needs to be configured as proportional hot water 3 racer Summit has the heat output disabled e Check group global and or Tracer overrides to make sure they are not inhibiting heat operation 4 Heatrelays have failed e f VAV UCM is calling in the status menu for the valve to be open and it is not then check UCM Triac output wiring and Relay output VAV SVX01D EN Check J8toTB1 2 Should have 24VAC if it does not if not measure the power inputtoTB1 1 power and TB1 2 ground of the UCM bo
128. ting the Sensor to the Receiver 23 Testing Signal and Battery Strength 23 Disassociation 23 UCM Programming and Operation 24 Chapter Overview 24 Accessing Rover Comm4 24 Rover Overview 24 Laptop Requirements and Complete Connection Instructions 24 UCM Home Tabs At a Glance 26 Status TaD cs ee beet enna esc eee 27 Setpoints Tab 27 Wireless 28 Advanced Configuration Tab 28 UCM Home Tabs Instructions 28 Configuration 28 Setpoints Tab 28 Set p TaD 30 Wireless 33 Advanced Configuration Tab 34 Entering and Exiting the Service Mode 35 Overriding VAVs 3b Resetting Diagnostics 35 Saving Program 35 Downloading Program Files from PC to DDC UCM 42 36 Sequence of Operations 38 Chapter Overview 38 Single Duct Units 38 Override Conditions Single Duct 38 Fan Powered Units 39 VAV SVX01D EN Parallel Fan Powered Units 39 Occupied Units 39 Override Conditions Parallel Fans 39 Series Fan Powered Units
129. ting the wires on the VAV UCM on terminals 5 TB3 6 and measure the VDC It should be 5VDC If the meter does not read 5VDC at the UCM the wires going to the zone have an open If 5VDC is not present check incoming power to the UCM board TB1 1 and TB1 2 VAV SVX01D EN Troubleshooting Should measure 24 VAC 10 If proper voltage measured TB1 1 and 1 2 and no voltage at TB3 1 TB3 2 replace UCM Note If no voltage at TB3 5 and TB3 6 see UCM see UCM failure procedures 6 More than one UCM connected to a single zone sensor e Cut jumper wires W4 on all slave units If jumper Is not cut it will give erroneous temperature value Auxiliary C02 Sensor Failure Procedures In the event that the UCM reports an incorrect or failed Auxiliary C02 sensor input temperature properly inspect the following 1 Check configuration of the VAV unit e Auxiliary sensor needs to be configured as C02 2 Check jumper position on C02 sensor Figure 41 Jumper position 24V GND OUT OUTPUT SELECTION b JUMPERS 4 20mA s e eje o 010 SELECTED Y 0 20mA SELECTED v 4 20mA 1 SELECTED Needs to be set up as 0 10VDC e Check voltage between J3 6 and J3 5 with the sensor connected e Should be between 1 10VDC If it is not check incoming power Check voltage input to C02 Senso
130. ype 3 Stage Electric v Flow Override Fan B Local Heat Setpoint i Configuration Generic Cooling Flow Auxiliary Input Type Temp Sensor Measured Value Value Calibration 0 0 Wired Sensor Present Value Correction Factor 1 Wired Zone Temperature Wired Thumbwheel Value 70 2 F Setpoint 922 DUse lAveraged Calibration 00 Thermistor Calibration 0 0 Vote 1 Em Download 2 Actual auxiliary temperature is higher or lower than what the UCM reads e Check the location and installation of the Auxiliary zone sensor Change the calibration factor in the UCM setup screens Note If Auxiliary sensor is off more than 2 degrees continue to number 3 3 Auxiliary sensor wired incorrectly e Check wiring for the correct connections See UCM 4 2 Installation and Wiring p 11 for further details on Auxiliary sensor wiring 4 Defective Auxiliary sensor Disconnect the zone sensor terminal plug from the UCM and using an Ohmmeter measure the resistance across the auxiliary sensor wires Compare the resistance to temperature using Table p 10 The resistance should shown value should be within 2 degrees near those measured with an accurate temperature measuring device If not the Auxiliary sensor needs to be replaced 5 Defective wiring or UCM e See if the VAV UCM is outputting 5VDC This can be done by disconnec
131. ype MariTrac Rectangular Unit Size 12 Inches Heat Type None Flow Override Auto Parallel Local Heat Setpoint ii Parallel Fan Control Flow Configuration Generic Cooling Flow Auxiliary Input Present Value Measured Value 1 00 Value 396 Correction Factor COZ Sensor Voltage Ref 4 90 Outputs Wired zone Temperature Wired Sensor Wired Thurbwheel Value ae e Use Averaged Setpoint 75 6 F Calibration 0 0 Thermistor gt Calibration Vote Download Each VAV UCM can have its hot water valve overridden to drive fully OPEN 2 position and proportional This can be done in the Rover Configuration UCM setup menu and can be used to assist in water balancing 1 Access VAV UCM with Rover service software 2 Select a VAV box to balance and drive its hot water valve open max hot water override 3 Using hydraulic pressure gauges measure the flow across the high and low ports Convert this data from a pressure differential to gallons per minute GPM 4 Adjust the circuit setter until it is within design specifications 5 Once achieved lock the circuit setter in place Mark the position with a permanent indicator 6 Remove all gauges and software overrides 44 Close Help VAV SVX01D EN Troubleshooting AWARNING Live Electrical C
132. ypes available for VAV version 4 0 and above e Bypass Damper Round e Bypass Damper Rectangular e Varilrane F Round e VariTrane F Rectangular e Rectangular Editing the unittype also affects the following entries Heat type The default is none e Fantype The default is none e Unit size The default is the smallest unit size e Air valve drive time e Control Algorithm gains reset times valve flow constant for air valve and water valve HeatType The entry in the HeatType field identifies what type of heat control algorithm the UCM should use If you edit the unit type Rover automatically changes the heat type to 0 None If you edit the heat typeorifitchanges automatically Rover automatically assigns the heat outputs per factory specifications Possible selections include the following e NONE No heat available e 1 3 stages electric e Slow pulse width modulation Electric 3 min time base e Prop hot water and aux output e 1 3 stages hot water perimeter Max HotWater Override When the Max HotWater Override check box is selected the UCM turns on all hot water outputs This may be useful for water system balancing The Maximum Hot Water Override affects only the following heat types e 3 Stage Hot Water Rover energizes all three heat outputs If the unit has a fan output 3 is not affected e Hot Water with Auxiliary Output Rover drives open the hot water valve connected to
133. ystem functions Override status can be Auto Open Closed Minimum or Maximum When a non auto flow override is edited from the UCM level the flow override will be maintained over power failures See Sequence of Operations for more information Note This is an excellent service point for checking damper operation and CFM flow Fan Type Select the type of fan used by the UCM If you edit the unit type field Rover automatically changes the entry to 0 None When the value of this field is not None the configuration of Output 3 is set to Normally Open Valid Selections None Parallel Series Note UCM may lockout the fan on its own if any of the following apply control action HEAT flow override to drive OPEN CLOSE or MAX or if the zone temperature sensor does not have valid input Parallel Fan Control This entry will determine if a parallel fan will be controlled based on zone temperature or on flow conditions If Parallel fan control has been edited to DEG the fan control offset will be entered as a temperature offset 2 10 F 1 1 5 5 C which will be added to the heating set point If Parallel fan control has been edited to FLOW this line will be entered as a percent 0 to 10096 if the unit is a VariTrane unit The entry field on this line will disappear if the unit does not have a parallel fan Note See Sequence of Operations p 38 of this manual for details on parallel fan operation 3

Trane Dual-Duct Installation and Maintenance Manual

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