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Trane Fan-Powered Low-Height Parallel Installation and Maintenance Manual

1. VAV Start Up Check Out Procedure 3 Make a notation of the address and location of the sensor Factory Wiring of the Receiver to the VAV Unit Controller 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 Tracer UC400 controller Please see Figure 4 p 18 and Figure 5 p 19 for wiring details Note A dedicated transformer is not necessary or advised Note The receiver is factory mounted and field wiring is not necessary See Troubleshooting section for wiring details Replacing and Securing the Receiver Cover 1 Toreplace 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 If necessary to keep the cover securely attached install the security screw into the bottom of the receiver Figure 10 p 26 Figure 10 Snap receiver cover on base plate and attach security screw Security screw 26 VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Applying Power to the Receiver Restore power to the unit controller Observe LED5 on the receiver Figure 11 p 27 It willlight and stay constantly On when 24 V power is normal Figure 11 LED5 stays on after applying power to the receiver 5 stays constantly R
2. Troubleshooting sensor or and for supply air temperature sensor and measure the VDC It should be 5VDC If you have 5VDC at the Tracer UC400 controller the wires going to the zone have an open If 5VDC is not present check incoming power to the UC400 on XFMR 24 VAC input and Voltage should measure 24 10 If you measure the proper voltage at XFMR 24 input and and no voltage at Al4 and 4 for discharge air temperature sensor or AI5 and gt gt for supply air temperature sensor replace the Tracer UC400 controller CO2 Sensor Failure Troubleshooting Procedures 78 N WARNING Hazardous Service Procedures The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical or other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided could result in death or serious i
3. LED1 LED2 LED3 LED5 gt e lt LT nu vum Test button Test button y 1 Push firmly then release Y Push 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 e receiver address is changed from its current setting 001 999 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 Configuring the Wireless Sensor Model Digital Display WDS only The configuration of the sensor determines which system features can be accessed and changes can be made by the tenant for example changes to cooling heating mode setpoint or fan speed Verify system and associated unit features before configuring the sensor VAV SVX07A EN 29 VAV Start Up Check Out Procedure Note Not all features are applicable to VAV units The building owner or operator may choose to limit tenant access to certain features This can be done through configuration Or if a sensor is configured to match all control capabilities of the building automation system the locking feature can be use
4. eka eel weeds 37 Data Log Button 41 Controller Settings Button 45 Equipment Settings 48 Sequence of 53 Calibration Sequence 53 Occupancy Modes 53 Space Temperature Control Single Duct Fan Powered Units 55 Ventilation Flow Control 60 Flow Tracking 62 2 22 2222 2 64 Troubleshooting Procedures 64 DIagHnosti6S Eee EN EE 64 LED e edd 65 Tracer UC400 Controller Failure Troubleshooting Procedures 66 Tracer UC400 Controller Communication Loss Procedures 67 Wired Zone Sensor Failure Troubleshooting Procedures 68 Wired Zone Setpoint Failure Troubleshooting Procedures 70 Wireless Zone Sensor Failure Troubleshooting Procedures 70 3 Airflow Failure Troubleshooting Procedures 75 Supply Discharge Air Temp Sensor Failure
5. Baud Rate If the protocol is BACnet or Modbus you can use this drop down list to specify the baud rate of the link which depends on the network device to which the controller is being linked Device ID Current Device ID Displays the Device ID of the controller The default Device ID is set to the UC800 MAC address set on the rotary dials The Device ID can also be soft set SoftSet Device ID If the BACnet protocol is being used you can enter a soft set Device ID This is useful for integration with third party equipment Select the check box to activate the entry box Remove Soft Set ID Use this button to clear the current value out of the Soft Set Device ID box You can then enter a new value You do not need to click this button when you enter the first Soft Set Device ID Use it only to change the Soft Set Device ID To Set Up the Soft Set Device ID You can specify a soft set device ID using the Tracer TU service tool tab Controller Settings screen on the Controller Settings Utility tab if the BACnet protocol is being used at your job location A soft set device ID is useful when you are integrating Trane equipment into a non Trane environment 1 2 Select the Soft Set Device ID check box If no soft set ID is present or if you want to change the existing soft set ID a Select the Soft Set Device ID check box b Enter a new ID c Click Save d Cycle the power to the controller to make the change ef
6. The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical or other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided could result in death or serious injury In the event that the Tracer UC400 controller reports an incorrect zone temperature properly inspect the following 1 Verify that the actual room temperature is higher or lower than what the Tracer UC400 controller reads Check the location and installation of the zone sensor Change the calibration factor in the Tracer UC400 controller setup screens Note If Zone sensor is off more than 2 degrees continue to number 2 2 Verify that the zone sensor is wired correctly Check wiring for the correct connections See section 2 for further details on zone sensor wiring 3 Verify that the zone sensor is working properly VAV S
7. Note When graphing live data you must first configure and start a session log on the Session Log screen before setting up graphs on the View Graphs screen Graphing live data requires an active session log In addition your session log configuration must include the data points you want to graph Select Graph Template When the tab appears this field will be pre populated Leave the default response as is Choose Data Settings This group box is the container for all of the following data selection controls Data Source Box Contains controls you use to select the source of the logged data to be graphed You can select either the current live session a device the unit controller or archived log files on your PC hard drive Available Data Select up to eight 8 data points you want to graph from this list box You can select multiple items by holding down the Control key while clicking each item with a mouse Arrow Buttons Use the arrow buttons to transfer items between the Available Data Objects box and the Selected Data box Selected Data Each box contains one of your selected data points The color boxes indicate the color line that is used to graph that data point on the generated chart Graph Titles Lines 1 and 2 Use these entry boxes to specify a one or two line title for the graph Axis Labels Use these entry boxes to specify a short label for the graph axis Save as Template Use this button to save the graph d
8. TRANE Tracer UC400 Programmable BACnet Controller For Factory Installation on Variable Air Volume VAV Units TRIAC TRIA May 2010 VAV SVX07A EN TRANE Warnings Cautions and Notices Warnings Cautions and Notices Note that warnings cautions and notices appear at appropriate intervals throughout this manual Warnings are provide to alert installing contractors to potential hazards that could result in personal injury or death Cautions are designed to alert personnel to hazardous situations that could result in personal injury while notices indicate a situation that may result in equipment or property damage only accidents Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions Read this manual thoroughly before operating or servicing this unit ATTENTION Warnings Cautions and Notices appear at appropriate sections throughout this literature Read these carefully WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury It may also be used to alert against unsafe practices NOTICE Indicates a situation that could result in equipment or property damage only accidents WARNING This equipment is to be serviced in
9. 1 981 m e Installation Category Pollution Degree 2 Analog inputs to 5 Space temperature thermistor 10 ko 77 F 25 C Range 32 F to 122 F 0 C to 50 C Al2 Space setpoint potentiometer 1 ko From 50 to 90 F 10 to 32 2 C thumbwheel functionality supported Spare Al4 Discharge air temperature 10 ko 77 F 25 C From 40 to 212 F 40 to 100 C Al5 Supply air temperature 10 ko 77 F 25 C From 40 F to 212 F 40 to 100 C 6 VAV SVX07A EN TRANE General Information Universal Inputs Ul1 UI2 1 Spare but recommended for Relative Humidity Resistive thermistor inputs 0 10VDC inputs or 4 20 mA inputs Current Mode Impedance 200 ohm Voltage Mode Impedance 10 kohm min e Ul2 Spare but recommended for CO2 Resistive thermistor inputs 0 10VDC inputs or 4 20 mA inputs Current Mode Impedance 200 ohm Voltage Mode Impedance 10 kohm min Pressure Inputs P1 and P2 e P1 Supply air flow pressure transducer From 0 to 2 in water column 0 to 498 P2 Spare but recommended for dual duct secondary air flow Binary input to e 1 Occupancy 2 Spare Spare Binary outputs BO1 to BO9 Table 1 Binary outputs Binary Outputs Type Output Rating Pilot duty BO1 Fan 10A up to 277 VAC 10A at 30 VAC VDC 2A at 120 VAC 8A at 250 VAC BO2 Spare Relay 10A up to 277 VAC 10A at 30 VAC
10. 25 to an address between 001 and 999 Note Do notuse 000 as an address for installation If you setthe 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 Make the receiver unable to associate with a sensor Read the switches from left to right in the order in which they are numbered 51 S2 53 Zero is at the nine o clock position 2 Make a notation of the address and location of the receiver Setting the Sensor Address 1 Using a small screwdriver set the three rotary address switches locations S1 S2 S3 on the sensor Figure 9 p 25 to the same address used for the receiver it is to be associated with 2 Make a notation of the address and location where this sensor is to be mounted Note Do not use 000 as an adaress 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 e Read the switches from left to right the order in which they are numbered S1 52 S3 Zero is at the 9 o clock position VAV SVX07A EN 25
11. And it remains OFF after the 10 seconds expires if System mode communicated application mode or communicated heat cool mode is ON Occupancy mode is status unoccupied Otherwise the series fan is turned ON when the 10 second period expires Parallel Fan The parallel fan is the first stage of heat When the supply air temperature is cold the parallel fan Cycles ON as the first stage of heat during occupied mode or occupied standby mode e Cycles ON with a call for heat during unoccupied mode When the supply air temperature is warm or hot the parallel fan is OFF unless the local reheat is ON Two methods of control are supported for energizing the parallel fan One method is based on space temperature the other method is based on supply airflow The parallel fan start points for each method of control are able to be configured Parallel fan start based on space temperature The parallel fan turns ON when the space temperature falls below the heat setpoint plus the configured parallel fan delta temperature enable setpoint Itturns OFF when the space temperature rises above the heat setpoint plus the configured parallel fan delta temperature enable setpoint by 0 5 F 0 28 C Parallel fan start based on supply airflow The parallel fan turns ON when the supply airflow falls below the configured parallel fan airflow enable setpoint or the supply airflow is less than the active minimum flow setpoint plus 296 of the configured
12. Click this button to put the option you selected on the Actions drop down list into effect Add New button Click this button to create a new data log The Data Log Properties dialog box appears Table Columns Index Sequence number Data Log Name Name of the data log the point you are logging Reference Identifies the source or target of information supplied to or from the point Type Indicates how the value is updated pushed or pulled of Samples Shows the size of the buffer containing all values currently collected Since Notice Number of samples harvested since the event notification buffer has last been read Enabled Select the corresponding check box for each data log you want to activate Save Use to save the data log definitions to an new file Displays a save as dialog box Save to File Use for repeat saves to an existing file Saves the data log definitions to an existing file without bringing up a Save As dialog box Cancel Returns the screen to its condition at the last save Capturing Data amp Troubleshooting 44 Occasionally you may need to troubleshoot a difficult equipment problem You can use the Tracer TU Data Logging Utility to view data at your desired sampling rate with no memory limitations besides your laptop hard drive or USB jump drive To capture data in a live session log 1 If you are already in Tracer TU service tool and connected to a controller but you have not yet con
13. control gt setpoint Unoccupied closed parallel fan Off Space temperature fail ventilation flow Normal D notcar Normal control b Space temperature fail flow tracking control 5 Normal Do not care Do not care Local setpoint failure Normal Normal Normal Flow sensor failure or flow sensor calibration Normal pressure dependent control Normal Normal failure space temperature control Flow sensor failure or flow sensor calibration PERA Normal pressure dependent control Do not care Normal failure ventilation flow control Flow sensor failure or flow sensor calibration If the configured airflow tracking failure flow tracking control offset is positive configure maximum airflow If the configured Do not care Do not care airflow tracking offset is negative configure minimum airflow Freeze protection active ventilation flow Closed Off Off control in position single star Minimum airflow Normal Normal position Thumbwheel in position double star Maximum airflow Normal Normal position Normal Normal Normal Normal a If system mode is heat or auto with a warm or hot supply air temperature b When a temperature sensor fails after being valid the controller generates a diagnostic to indicate the sensor loss condition The controller automatically clears the diagnostic once a valid sensor temperature value is present non latching diagnostic LED Operation LED Description and Operation There ar
14. the calculated occupied setpoint is validated against the following configured space setpoint limits e Heating Setpoint High Limit e Heating Setpoint Low Limit e Cooling Setpoint High Limit and e Cooling Setpoint Low Limit These setpoint limits apply only to the occupied and occupied standby heating and cooling setpoints They do not apply to the unoccupied heating and cooling setpoints When the controller is in the unoccupied mode it always uses the unoccupied heating and cooling setpoints Unit configuration enables or disables the local hardwired setpoint This parameter provides additional flexibility to allow you to apply communicated hardwired or default setpoints without making physical changes to the unit Similar to hardwired setpoints the effective setpoint value for a communicated setpoint is determined based on the stored default setpoints configuration values and the controller occupancy mode Setup Parameters Tab VAV SVX07A EN Setup Nominal Air Flow Nominal flow is the total airflow capacity of the VAV box Nominal Flow becomes an active field when Generic is selected in Box Setup under the Unit Tab Select the nominal flow for the unit This is normally used when mounting the tracer UC400 controller on someone else s VAV unit Unit Flow Gain The flow gain is used to calibrate the value reported by the flow sensor so that the reported airflow matches the actual airflow The flow gain is deter
15. wiring and relay output 81 Troubleshooting e Check to common Should have 24 if it does not measure the power input to on XFMR 24 input and of the Tracer UC400 controller The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability can be checked with purchasing a 24 LED and see if it lights up on call for fan the Tracer UC400 controller If LED does not light up replace the Tracer UC400 controller Remove fan wires from UC400 and apply 24 VAC directly to fan relay wires Fanrelay should energize If it does not energize check wiring If wiring is OK replace fan relay Notice Equipment Damage The Tracer UC400 controller outputs are switched to ground Do not jumper 24 VAC to binary output TRIAC s because damage will occur 8 After all checks have been completed check motor fan winding integrity and bearing failure PSC Variable Speed Motor Check Out 82 ZNWARNING 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 coul
16. 60 for ventilation flow control output control Table8 Ventilation flow control outputs Occupancy mode Source temperature Air valve control Reheat control Occupied Any Constant volume if valid VFC staged reheat Occupied Standby or Occupied Bypass Unoccupied communicated ventilation setpoint if not valid configured ventilation setpoint electric control Staged hot water VFC staged reheat control Modulating hot water VFC modulating reheat control same as STC capacity control Communicated source temperature if valid if Closed 0 Electric Off not valid discharge air temperature greater than configured OA low limit Stagedihot water or Modulating hot water Off Communicated source temperature if valid if Closed 0 Electric off not valid discharge air temperature less than 2 configured OA low limit Staged hot water 9n 100 hs protection On 100 freeze Modulating hot water protection The ventilation flow control process is a constant volume variable temperature process Single duct VAV units with either electric or hot water reheat are used Fan powered units are not used for ventilation flow control Ventilation flow control must have a temperature sensor that is located and setup as a discharge air temperature DAT sensor The required range of discharge air temperature setpoints is from 45 F to 70 F 7 22 C to 21 11 C Ventilat
17. BACnet links are available on the SC Connect the BACnet link to the Tracer UC400 controller terminals labeled Link Incoming wires can be connected to the first two terminals and the outgoing wires can be connected to the second set of terminals such that there is only one wire per termination Refer to Chapters 2 and 3 for further information about wire selection See also wiring guide BAS SVNOS3 EN Unit Controller Wiring for Tracer SC System Controller for required wire type topology and active termination resistors for BACnet links Rotary Switches There are three rotary switches on the front of the Tracer UC400 controller see Figure 3 p 16 Use these switches to define a three digit address when it is installed in a BACnet system for example 107 120 and so on whether with other Trane BACnet controls or controls from another vendor This three digit rotary switch setting is used as both the BACnet MAC address and the BACnet Device ID Note Valid addresses are 001 to 120 Important Each Tracer UC400 controller on the BACnet link must have a unique rotary switch setting otherwise communication problems will occur Tracer UC400 Controller Features Controller Interface Flexibility The Tracer UC400 controller allows units to communicate on BACnet MS TP link This controller works in standalone mode peer to peer with one or more other units or when connected to a Tracer SC or a 3rd party building auto
18. The exception is 24 7 sites in which case Tracer SC can be used to initiate schedule calibration Temporary Heat Construction Mode Upon reset and power up if the controller does not detect a valid space temperature the controller will provide temporary heat by driving the air valve to the heating maximum position Note Note that the unit will only provide heat if hot air is being provided by the air handling unit Local Versus Remote Reheat Flexibility The controller can be configured to have local and or remote heat Plus configuration flexibility is offered that allows the installer to select whether local or remote heat has priority Spare Inputs and Outputs The Tracer UC400 controller has spare 1 0 that are not used by the applications These spare can be programmed using the Tracer Graphical Programming editor by means of the Tracer TU service tool to measure and or control ancillary devices such exhaust fans second air valve for dual duct VAV or sensing relative humidity Removable Terminals The Tracer UC400 controller connectors are two part connectors that have 5 08 mm pin separation The headers are attached on the Tracer UC400 controller itself The other portion of the connector is either a screw terminal for field wiring or a terminal housing for factory wiring Spare screw terminals come factory installed for field mounted wired zone sensors and common accessories Wireless Zone Sensors The Tra
19. Troubleshooting Procedures 77 CO Sensor Failure Troubleshooting Procedures 78 VAV Damper Failure Troubleshooting Procedures 79 VAV Series Fan Failure Troubleshooting Procedures 80 VAV Parallel Fan Failure Troubleshooting Procedures 81 Trane Honeywell Proportional Valve Check Out Procedures 84 VAV SVX07A EN General Information This chapter contains information about the following Tracer UC400 BACnet Unit Controller e Shipping amp Storage Specifications e Tracer UC400 Controller Enhancements e Tracer UC400 Controller Features Tracer UC400 BACnet Unit Controller VAV SVX07A EN The Tracer UC400 controller is a programmable general purpose BACnet microprocessor based Direct Digital Controller DDC When factory installed on Trane Variable Air Volume VAV terminal units it is factory downloaded with appropriate VAV programs and configuration settings Trane VAV units have been made with either pneumatic analog electronic or microprocessor controls DDC VAV This manual discusses only terminal units with BACnet Tracer UC400 controller DDC VAV controls Factory installed DDC VAV controls are available with all single duct terminal units dual duct units parallel fan powered and series fan powered units A single Tracer UC400 controller is needed for dual duct units but programming is not provided from the fa
20. UC400 ECM MOTOR LINE VOLTAGE HEATER TERMINALS TYPICAL THREE PHASE VOLTAGES SEE HEATER SCHEMATIC FOR ACTUAL WIRING NTACTOR ST STAGE Bg 4 MANUI ld Ld HEAT CONTACTORS CONTACTORS MAGN MERCURY CONTACTORS NERC CORRECTION CHOKE uc400 CONTROL BOX VAV SVX07A EN 93 Declaration of CE Conformity Manufacturer name Trane Manufacturer address 3833 White Bear Parkway Saint Paul MN 55110 USA The manufacturer hereby declares that the product Product name Tracer UC400 Unit Controller Model numbers 13651492 01 Conforms to the following standards or other normative documents EN61326 1 2006 Electromagnetic Emission EN55022 2006 CISPR 22 2005 1 2005 Radiated Emissions by Council Directive 2004 108 EEC EN55022 2006 CISPR 22 2005 1 2005 Radiated Emissions Electromagnetic I mmunity for Industrial 61326 1 2006 EN61000 4 2 1995 1 1998 A2 2001 Electrostatic Discharge ESD by Council Directive 89 336 EEC EN61000 4 3 2002 Radiated Fields EN61000 4 4 2004 Fast Transients EN61000 4 5 1995 A1 2001 Surge Transients 61000 4 6 1996 1 2001 Conducted Disturbance EN61000 4 8 1993 1 2001 Power Frequency Magnetic Field EN61000 4 11 Second Edition 2004 Voltage Dips and Interruptions Where and When Issued Electromagentic Emmission Electromagentic Immunity Mark of Compliance Electrical equipment for measur
21. above the high limit this indicates that the zone is most likely at its maximum design occupancy and that a maximum of ventilation air is required to ventilate the zone Flow Setpoints Setup Minimum Airflow Although the UCM will read flow down to 596 of cataloged the range of MIN FLOW settings is 0 or 10 to 100 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 10096 of the unit s cataloged 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 Maximum Flow must be greater than or equal to the entry in any of the Minimum fields Standby Minimum Airflow Occupied standby mode is used to reduce the heating and cooling demands during the occupied hours when the space is unoccupied It can be activated for a classroom currently not in use Standby Minimum is the minimum amount of airflow desired during this mode Standby Heating Minimum Airflow Occupied standby mode is used to reduce the heating and cooling demands during the occupied hours when the space is unoccupied It can be activated
22. alarm Click the Active Alarms box to go to the Alarms screen Overrides Indicates the number of overrides that are currently active If any overrides are active the icon displayed in the box turns blue Operating Status Occupancy Status The Tracer UC400 controller has four valid occupancy modes that display under the operating status They are Occupied mode Unoccupied mode Occupied Standby mode and Occupied Bypass mode Heat Cool Status The heat cool status displays the heating and cooling mode of the Tracer UC400 controller This is where the controller will display the heating or cooling mode of the controller The controller can receive communicated requests for heating or cooling operation Responses are Heating Cooling and Calibration Pressure Dependent Control or Pressure Independent Control Status The Tracer UC400 controller will display either pressure dependent or pressure independent status if it has a valid flow input to the controller from the flow ring and pressure transducer The controller can operate with or without a valid flow value the air flow is hardwired only It operates under pressure dependent control or pressure independent control Pressure dependent control When a valid flow value is not present the controller operates under pressure dependent control position control Pressure dependent control substitutes the air valve position for the flow measurement for all control actions Pressure indepen
23. controllers working together space temperature controller and flow tracking controller The space temperature controller outputs the airflow as reported airflow The airflow is determined by the airflow setpoint input communicated airflow setpoint of the flow tracking controller The flow tracking controller adds a configured airflow tracking offset positive or negative to the communicated airflow setpoint and controls its airflow to this new airflow setpoint Reheat Control in Flow Tracking Control Operation Reheat is not an option on a flow tracking controller Unoccupied Flow Tracking Control In unoccupied control mode the controller operates the air valve the same as it does in occupied control mode The controller enters this mode from a communicated command or from a local occupancy sensor Figure 31 Flow tracking control How Does Operate To other 5 Supply VAV Main Control Panel Exhaust Communication link from Main AHU Occupied Space VAV SVX07A EN 63 TRANE Troubleshooting WARNING 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 cou
24. cooling setpoint must be greater than or equal to the heating setpoint plus 2 0 F 1 1 C Note Occupied cooling and heating setpoints must be set within the cooling setpoint high limit and the heating setpoint low limit in order to control to the proper setpoints Occupied Standby Heating Setpoint Based on the controller occupancy mode the active space heating setpoint is the occupied standby heating setpoint The controller can be placed in VAV SVX07A EN TRANE Tracer UC400 Controller Operations the occupied standby mode when a communicated occupancy mode request from a communicated occupancy override occupancy schedule or occupancy sensor is combined with an unoccupied request from the local hardwired occupancy binary input Note This setpoint allows inactive spaces in the occupied mode to float to a more energy saving setpoint until occupancy mode deems it necessary to use another setpoint as its active setpoint Unoccupied Heating Setpoint Setpoints have a range from 40 0 F to 115 0 F 4 44 C to 46 11 C This heating setpoint is used when the UCM is unoccupied The unoccupied cooling setpoint must be greater than or equal to the unoccupied heating setpoint plus 2 0 F 1 1 C Setpoint Limits Each point has its own min max so these four limits are incorporated in the occupied setpoint point standby setpoint point and unoccupied heat cool setpoints After the controller completes all setpoint calculations
25. ends are nottouching 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 Table 12 Zone sensor temperature resistance Temp 9 Thermostat Thumbwheel Sensor Resistance k Ohms Resistance 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 9 5 80 306 9 3 81 286 9 0 82 267 8 8 83 247 8 6 84 228 8 4 85 208 8 2 Note Thumbwheel resistance checks are made at terminal 2 and 3 on zone sensor Temperature sensor resistance is measured at terminal 1 and 2 of the zone sensor 69 Troubleshooting Wired Zone Setpoint Failure Troubleshooting Procedures ZAWARNING Hazardous Service Procedures The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical or other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper locko
26. for Dual setpoint e Temperature units Fahrenheit e Temperature resolution to tenths of a degree e System settings Heat Cool Off e Fan Settings Auto and On Occupied unoccupied option enabled To return the display to operating mode press the configuration button See Step 1 The following example shows a configured display in operating mode Note The sensor will revert to operating mode if no buttons are pressed for 10 minutes Figure 20 Display shows the following e Temperature units Fahrenheit Temperature resolution to tenths of a degree e System setting Cooling e Fan Setting Auto Occupied Unoccupied option enabled If an error exists it appears at the bottom of the display between the occupancy symbols as shown in Figure 21 p 33 Figure 21 Q Eg tf VAV SVX07A EN 33 VAV Start Up Check Out Procedure 34 Optional Features Displaying Setpoint or Temperature You can configure the sensor to display either the temperature default or setpoint To select either option 1 Verify that the sensor is in operating mode and at the home screen 2 Press the up and down arrows for 3 seconds The arrow indicates setpoint display as shown in Figure 22 p 34 Figure 22 Arrow BH indicates d setpoint is shown on display Temperature Setpoint Locking and Unlocking Settings You can lock or unlock the setpoint system or fan setting to prevent changes To lock or unlo
27. from the Selected Data box by transferring them back to Available Data using the single left arrow button or by pressing Ctrl and making selections with your mouse Note Ifyou make no selections all data points generated by the controller are captured at the interval you previously specified on the Sampling Rate spin box 7 Click Save to save the session data log definition Note Note You must save the configuration before you can start data logging 8 Click Start session logging to start the session log immediately if it has not been scheduled with a start time If a scheduled start time has been entered the data logging begins when the start time matches the current time in the device and ends when the stop time mas the current time in the device The data log is periodically and automatically saved to your hard drive Controller Settings Button Figure 29 The controller settings button H On Controller Settings button you can e View points e Enable and setup points Set the Tracer UC400 controller date and time including format and time zone Set the Tracer UC400 controller units SI or IP protocol parameters and Soft set the BACnet Device ID Analog Binary and Multistate Tabs VAV SVX07A EN Use the Analog Binary and Multistate tabs to create edit or delete the currently configured inputs outputs and values residing on the equipment controller This is the same as the Analog Statu
28. in areas subject to the following Drafts or dead spots behind doors or corners e Hot or cold air ducts e Radiant heat from the sun or appliances e Concealed pipes or chimneys Unheated or uncooled surfaces behind the sensor such as outside walls Air flows from adjacent zones or other units Wiring Each unit must be controlled by a zone sensor that utilizes a standard 10K ohm at 77 F thermister for temperature outputs Field wiring for the zone sensors must meet the following requirements 18 to 22 AWG stranded tinned copper shielded twisted pair wire is recommended e Maximum wire length 300 ft 100 m e Refer to Figure 4 p 18 and Figure 5 p 19 and the sensor instructions for terminal connections e All wiring must be in accordance with the National Electrical Code and local codes e codes require enclosed conductors the zone sensor wires should be installed in conduit Note Do not route zone sensor wires in conduit with 24 VAC or other high power conducting wires Zone Sensor Communication Stubs The wire that runs from a zone sensor to a unit controller is commonly referred to as a communication stub Figure 2 p 15 shows an example of communication stubs on a BACnet link The stub is not the BACnet link it is a wire that goes from the Tracer UC400 controller IMC terminal link down to the zone sensor At least one zone sensor per area or controller network should include the optional comm
29. is not lost or discarded with the packing material Visually inspectthe individual components for obvious defects or damage All components are thoroughly inspected before leaving the factory Any claims for damage incurred during shipment must be filed with the carrier If any component of the VAV system and or field installed accessories must be stored for a period of time prior to installation 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 or controls due to negligence during storage A controlled indoor environment must be used for storage Specifications AC wiring specifications Wire 16 AWG maximum copper wire Transformer e UL Listed Class 2 power transformer 19 30 VAC 24 VAC nominal The transformer must be sized to provide adequate power to the Tracer UC400 controller 24 VA and outputs maximum 12 VA for each binary output Storage Temperature 48 F to 203 F 44 C to 95 C e Relative humidity Between 5 to 95 noncondensing Operating e Temperature 40 F to 158 F 40 C to 70 C e Humidity Between 5 to 95 noncondensing Power 19 30 VAC 24 VAC nominal 50 60 Hz 24 VA e Mounting weight controller Mounting surface must support 80 Ib 364 kg Environmental rating enclosure NEMA 1 e Altitude 6 500 ft maximum
30. middle of an auto commissioning cycle the auto commissioning sequence restarts If an auto commission command is received during calibration calibration aborts and restarts after auto commissioning finishes If an abort auto commission command is received during the calibration portion of the primary air valve test it is honored after the air valve calibration finishes Air Balancing Use the Tracer TU service tool Air Balancing tool and the Trane Air Balancing Calculation spreadsheet to perform a basic two point air balance for the Tracer UC400 controller application Note The Air Balancing Calculation spreadsheet is included with Tracer TU service tool Important A full discussion of air balancing is beyond the scope of this document See Air Systems for Tracer SC Applications Guide BAS APG007 EN for extended coverage of this topic To perform a two point air balance 1 Record job information and the VAV ID from NAV tree in the Job section of the calculations spreadsheet Click the Equipment Utility button then click the Commissioning tab Verify the maximum and minimum airflow setpoints are set according to the job specification and record them in the Job section of the spreadsheet Enter the Nominal Air Flow reading in the Calculation section of the spreadsheet 5 Click the Air Balancing Start button in the Actions expanding box 51 Tracer UC400 Controller Operations 6 Select Drive to Maxi
31. nominal airflow The parallel fan turns OFF when the supply airflow rises above the configured parallel fan airflow enable setpoint plus 596 of the configured nominal airflow and the supply airflow is greater than the active minimum flow setpoint plus 596 of the configured nominal airflow In pressure dependent mode the air valve position is substituted for the supply airflow 59 Sequence of Operation Parallel fan operation during calibration During calibration the parallel fan is in the same state ON or OFF as it was before calibration started It remains in that state until one minute after calibration ends One minute after calibration ends normal control of the parallel fan resumes The one minute period is ignored if reheat is active or if the parallel fan is overridden Fan Off Delay There is a 15 second fan OFF delay When reheat is turned OFF the controller turns the fan OFF 15 seconds later Ventilation Flow Control Ventilation flow control VFC is one of three supported control algorithms It is applied to a VAV terminal and used to temper cold outdoor air OA that is brought into a building for ventilation purposes The tempered air is intended to supply an air handling unit AHU which provides comfort control to the zones it is serving The VAV terminal supplies the correct amount of ventilation air and when possible tempers the ventilation air to reduce the load on the air handler See Table 8 p
32. not already off reheat de energizes when the zone temperature rises more than 0 5 F 0 28 C above the heating setpoint The Stage 1 on time is proportional to the amount of reheat required For example when 50 of stage 1 capacity is required reheat is on for 90 seconds and off for 90 seconds When 75 of stage 1 capacity is required reheat is on for 135 seconds and off for 45 seconds When 100 of stage 1 capacity is required reheat is on continuously Stages 2 and 3 use the same on time logic as stage 1 listed above except stage 1 is always energized For example when 75 of unit capacity is required stage 1 is energized continuously and stage 2 is on for 90 seconds and off for 90 seconds When reheat is deenergized the cooling minimum airflow setpoint is activated Important Discharge air temperatures leaving air temperatures LAT should not exceed 100 F 110 F with 95 F being the optimal for zone temperature and comfort control At elevated DATs room stratification may result in uneven air distribution and zone temperature complaints See Table 6 p 57 for single duct reheat operation and Table 7 p 58 for fan powered reheat operation On Off Electric Reheat One two or three stages of staged electric reheat are available on single duct units The heating minimum airflow setpoint is enforced during reheat VAV SVX07A EN TRANE Sequence of Operation e Stage 1 is energized when the space temperature falls
33. properly If it does operate properly check inputs outputs for a short Check for alarms or diagnostics with Tracer TU service tool For final step check program by downloading good program using Tracer TU service tool Note For Instructions on how to use Tracer TU refer to the Tracer TU online Help by clicking on Tracer TU Help in the Help menu or see the Tracer TU Service Tool Getting Started Guide TTU SVN02 EN If controller is still failed replace controller Tracer UC400 Controller Communication Loss Procedures VAV SVX07A EN WARNING 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 Inthe event that the Tracer UC400 controller is not communicating properly No activity on the LINK or IMC LED s inspect the following The TX LED blinks green at the data transfer rate when the Tracer UC400 controller transfers data to other devices on the link The RX LED blinks yellow at the data transfer rate when the Tracer UC400 controller receives data from other devices on the link Check for incorrect supply voltage no voltage e Check Marq
34. the active space cooling setpoint Based on the controller occupancy mode the active space cooling setpoint is either the occupied cooling setpoint the occupied standby cooling setpoint or the unoccupied cooling setpoint The outputs are controlled based on the unit configuration and the required cooling capacity At 096 required cooling capacity the air valve is closed or atthe active minimum flow setpoint As the required cooling capacity increases the air valve opens above the minimum position At 10096 required cooling capacity the air valve opens to the maximum position or to the active maximum flow setpoint All units have a modulating air valve The modulating air valve is used to control the volume of air flowing through the diffusers and into the space Modulating the volume of air modulates the unit cooling capacity Also units may have local or remote reheat The reheat may be hydronic or electric Reheat is allowed to turn On when the space temperature is below the heating setpoint Heating Operation Under space temperature control during the heating mode communicated heat cool mode is heat the controller attempts to maintain the space temperature at the active heating setpoint Based on the controller occupancy mode the active space heating setpoint is either the occupied heating setpoint the occupied standby heating setpoint or the unoccupied heat setpoint ventilation requirements are in force during occupied heat
35. used as both the BACnet MAC address and the BACnet device ID Note Valid MAC addresses are 001 to 120 for BACnet Figure 3 Setting rotary switches IMG 24 24 24 IMC EIL SS Lon Lo as J Fi ds gt 8 EES L 7 UC400 x RX SERVICE 88 SERVICE TOOL ADDRESS 20 7 0 1 a I tis i 802 uos xi A Su J x100 x10 x1 Example of before and CONNECT AC FONERTOTHETRIAC SUPPLY TO POWERTHETRIACS 8 TRIAC SUPPLY TRIACS after setting addresses wo Nc Tro c f Tata Jordon Tos C Important Each Tracer UC400 controller device on the BACnet link must have a unique rotary switch setting otherwise communication problems will occur Use a 1 8 inch flathead screwdriver to set rotary switches 16 VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Space Temperature Control Wiring Zone Sensor Hardwired Option Depending on the zone sensor options used
36. when the controller is in the Off state or during the unoccupied period when the supply air valve is closed and the reheat is disabled During 61 Sequence of Operation occupied operation the control algorithm indirectly provides freeze protection See Table 9 p 62 for Unoccupied VFC control Note See BAS SVX20 EN for details on BAS system control of the Tracer UC400 controller Stand alone Controller Freeze Protection Controllers operating without communications do not have the source temperature available to them In these cases the discharge air temperature sensor is assumed to provide a reasonable representation of the coil temperature at conditions with no airflow if the sensor is close to the coil If the discharge air temperature at no airflow falls below the configured outdoor air low limit the hot water valve is fully opened The hot water valve remains open until the discharge air temperature is 10 F 5 56 C above the configured outdoor air low limit or occupied operation begins If the communicated source temperature is invalid and the local discharge air temperature sensor has failed freeze protection is active and the water valve is open Unoccupied Ventilation Flow Control The controller closes the air valve Local electric heat and hot water heat are disabled The hot water valves open if needed for freeze protection The operation of freeze protection for local hot water heat depends on whethe
37. 0 controller is calling in the status screen and LED is on for binary output to open the valve and TRIAC is not closed then check the Tracer UC400 controller TRIAC output wiring and relay output Check binary outputs See Figure 37 p 86 and Figure 38 p 87 for correct outputs Should have 24 if it does not measure the power input XFMR 24 input and of the Tracer UC400 controller The supply voltage should be between 20 and 28 24 VAC cataloged However voltages at either extreme may result in system instability Heat TRIAC s can 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 the Tracer UC400 controller If LED does not light up replace the Tracer UC400 controller Notice Equipment Damage The Tracer UC400 controller outputs are switched to ground Do not jumper 24 VAC to binary output TRIAC s because damage will occur Trane Honeywell Proportional Valve Check Out Procedures Two problems can occur with the cartridge actuator or both that can result in over conditioning the space Cartridge Failure e Ifthe 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 84 VAV SVX07A EN TRANE Troubleshoo
38. 3790496 Sensor only Part Number 13790492 Wireless zone sensor with adjustable setpoint thumbwheel C timed override TOV on cancel button Sensor Receiver Set Part Number X13790498 Sensor only Part Number X13790494 Wireless zone sensor with digital display Sensor Receiver Set Part Number X1379082401 Sensor only Part Number X1379082201 Wireless receiver only Part Number X13790854 17 VAV Start Up Check Out Procedure Figure 4 Tracer UC400 controller wiring connection diagram single duct unit 18 24VAC 60HZ NEC CLASS 2 CONTROL CIRCUIT LOAD 2VA WITHOUT HEAT PRESSURE TRANSDUCER TRL NE CONTROL BOX 1 1 uis l i per 1 NC CONTACT 1 RETURN _ 4 reansroRuER 1 1 NOT CONNECTED OPTIONAL CONTACTOR S HEATER ST OPTIONAL FIELD INSTALLED waa HEATER STAGE OCCUPANCY SENSOR es FACTORY WIRING FIELO WIRING OPTIONAL OR ALTERNATE WIRING 2 BARE WIRE ENDS REQUIRED FOR ALL FIELD CONNECTIONS X3 ZONE SENSOR TERMINALS 1 AND 2 REOUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION XA ADDMONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL UNIT MOUNTED TRANFORMER 15 NOT PROVIDED POLARITY FROM UNIT TO UNIT MUST BE MAINTAINED PREVENT PERMANENT DAMAGE TO CONTROL BOARD IF ONE LEG OF 24 SUPPLY IS G
39. ACTOR TST STAGE i VAV SVX07A EN 89 Wiring Diagrams Figure 41 SCR PSC fan powered with single phase voltage electric heat FAN POWERED UNITS UC400 HEATER TERMINALS TYPICAL OF SINGLE PHASE VOLTAGES LINE VOLTAGE L L2 N 208 240 480 SEE NAMEPLATE CONTACTOR MAGNETIC CONTACTORS MAG MERCURY CONTACTORS MERC PRI RI 3 EER 90 VAV SVX07A EN TRANE Wiring Diagrams Figure 42 SCR PSC fan powered with three phase voltage electric heat FAN POWERED UNITS UC400 208 480 575 HEATER TERMINALS TYPICAL OF THREE PHASE VOLTAGES L L2 L3N SEE HEATER SCHEMATIC FOR ACTUAL WIRING 1 Fer See MANDAI CONTACTORS MAGNETIC CONTACTORS MAGN MERCURY CONTACTORS MERC VAV SVX07A EN 91 Wiring Diagrams Figure 43 ECM fan powered with single phase voltage electric heat FAN POWERED UNITS UC400 ECM MOTOR HEATER TERMINALS TYPICAL OF SINGLE PHASE VOLTAGES CONTACTOR ST STAGE MAGNETIC CONTACTORS MAGN OR lt FOR VOLTAGES 208 240 8 480 A SECOND FUSE IS INSTALLED IF FUSE IS SELECTED 92 LINE VOLTAGE SEE NAMEPLATE L L2 208 240 L N 277 547 HEATER TERMINAL BOX ese POWER FACTOR CORRECTION CHOKE VAV SVX07A EN TRANE Wiring Diagrams Figure 44 ECM fan powered with three phase voltage electric heat 208 480 380 575 FAN POWERED UNITS
40. CK VAV SVX07A EN ae INSTALLED WIRELESS BUSS w HOD cos BK CLOSE R OPTIONAL FIELO INSTALLED PROPORTIONAL WATER VALVE it EP OPTIONAL FIELD INSTALLED ON OFF WATER VALVE y 1 GNO 1 GR NC CONTACT 1 B RETURN L 1 1 1 1 1 NOT CONNECTED OPTIONAL FIELD INSTALLEO OCCUPANCY SENSOR IMC 24VAC UNK A2 1 1 MC I GNO LINK GNO 6666000 i110 7 6 32 1 w COMM JACK OPTIONAL FELO INSTALLED 1 1 1 1 1 1 1 1 1 DIGITAL DISPLAY ZONE SENSOR 1 1 1 1 1 1 1 DIGITAL DISPLAY ZONE SENSOR ZONE SENSOR w COMM REMOTE MTO 1 oen 1 DAT SAT SENSOR OPTIONAL FELD INSTALLED l 02 SENSOR J 87 Wiring Diagrams Figure 39 Single duct with single phase voltage electric heat SINGLE DUCT UNITS UC400 HEATER TERMINALS TYPICAL OF SINGLE PHASE VOLTAGES LINE VOLTAGE SEE NAMEPLATE L L2 N 480 L L2 208 240 L N 277 547 1 ei MAGNETIC CONTACTORS MAGN MERCURY CONTACTORS MERC DNAL RESC Pe THERMAL SWITCH CUTOUT HEATER TERMINAL HOX UC400 CONTROL BOX 88 VAV SVX07A EN TRANE Wiring Diagrams Figure 40 Single duct with three phase voltage electric heat SINGLE DUCT UNITS UC400 HEATER TERMINALS TYPICAL OF THREE PHASE VOLTAGES SEE HEATER SCHEMATIC FOR ACTUAL WIRING 208 480 575 Li 23 X CONT
41. EN e TRANE Tracer UC400 Controller Operations closes the air valve if the configured airflow tracking offset is negative for flow tracking control units If the configured airflow tracking offset is positive the controller opens the air valve to the configured maximum airflow Once a valid differential pressure is established through the local hardwired input and no longer present the controller generates a flow sensor failure diagnostic Active Airflow Setpoint The Tracer UC400 controller supports one modulating air valve for heating and cooling operation The controller positions the modulating air valve to deliver the desired airflow cooling or heating capacity The desired airflow is called the active flow setpoint The airflow control algorithm compares the active airflow setpoint with the measured airflow and calculates the necessary air valve movement to minimize error The airflow setpoint is limited by applicable minimum and maximum flow setpoints Space CO2 Concentration CO2 based demand control ventilation uses the space CO2value The controller compares the space CO2 concentration to the configured band of CO2 values and determines the demand ventilation rate of the zone The resulting ventilation rate is called the effective ventilation setpoint The effective ventilation setpoint is the outdoor airflow required to provide ventilation It is used to calculate the ventilation ratio of the zone Outputs Damper Position Indic
42. ES LINKy IMC Toto senvice RX gemero SERVICE Ress BO 805 806 807 802 BO4 BO5 BO6 BO7 BO9 CONNECT POWERTOTHETRIAC SUPPLY TO POWER THETRIACS T EET E f LED Description and Operation There are 15 LEDs on the front of the Tracer UC400 controller Figure 1 p 14 shows the locations of each LED and a description of its behavior in specific instances Marquee LED e Shows solid green when the Tracer UC400 controller is powered and operating normally e Shows solid red when the Tracer UC400 controller is powered but represents low power or a malfunction e Blinks red when an alarm exists LINK The TX LED blinks green at the data transfer rate when the Tracer UC400 controller transfers data to other devices on the link The RX LED blinks yellow at the data transfer rate when the Tracer UC400 controller receives data from other devices on the link IMC The TXLED blinks green atthe data transfer rate when the Tracer UC400 controller transfer data to other devices on the IMC bus The RX LED blinks yellow at the data transfer rate when the Tracer UC400 controller receives data from other devices on the
43. IMC bus Service Shows solid green when pressed BO1 to BO9 Shows solid green when corresponding binary output is on VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Communication Wiring WARNING Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring Improperly installed and grounded field wiring poses FIRE amp 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 All field wiring MUST be performed by qualified personnel Failure to follow these requirements could result in death or serious injury Communication Link Wiring Requirements e Use 18 AWG Trane purple shielded communication wire for BACnet installations e Link limit of 4 000 ft and 60 devices maximum without a repeater e Use a Trane BACnet termination on each end of the link e Use daisy chain topology See Figure 2 p 15 e Maintain polarity Recommended Wiring Practices To ensure proper network communication follow these recommended wiring and planning guidelines when installing communication wire All wiring must comply with the National Electrical Code NEC and local codes e Make sure that 24 VAC power supplies are consistent in how they are grounded Avoid sharing 24 VAC between controllers e Avoid over tightening cable ties and other forms of cable wraps This can damage the wires insi
44. PTIONAL USE DF COMMUNICATIONS JACK INSTALLED yk TRANSFORMER ee ELECTRIC HEAT _ EDI EIEI 7 arb SCREW OPTIONAL FIELD INSTALLED DIGITAL DISPLAY ZONE SENSOR OPTIONAL FIELD OPTION SAT TEMP SENSOR OPTIONAL FIELD INSTALLED ELECTRIC HEATER WATER 906 iy VALVE AA Max OFTIONAL FIELO INSTALLED PROPORTIONAL WATER VALVE OPTIONAL FELD INSTALLED ON OFF WATER VALVE VAV SVX07A EN TRANE Wiring Diagrams Figure 38 Wiring diagram for fan powered unit that is either cooling only hot water or field installed reheat OPTIONAL FIELD INSTALLED ELECTRIC HEATER TO TRANSFORMER lt PRESSURE TRANSDUCER TRANE CONTROL BOX b a 8 z TO NOTE FAN RELAY 888 CONTACTOR S Hui FACTORY WIRING neater stage DAMPER p FIELD WIRING OPTIONAL ACTUATOR OPTIONAL OR ALTERNATE WIRING ELEC HEAT WIRING 2 BARE WIRE ENDS REQUIRED FOR ALL FIELD CONNECTIONS XX ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELOEO TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION lt NO ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE ON CANCEL C CONTACTORS ARE 24 VACt 12 MAX COIL MERCURY CONTACTORS 10VA MAX COIL MAGNETIC CONTACTORS TRANSFORMER PROVIDED IN ALL UNITS ZONE SENSOR TERMINALS amp AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR OPTIONAL USE OF COMMUNICATIONS JA
45. ROUNDED THEN GROUND LEG MUST BE CONNECTED TO 761 2 CONTACTORS ARE 24 VAC 12 MAX COIL MERCURY CONTACTORS 10 MAX COIL MAGNETIC CONTACTORS 771 FUSE DISCONNECT SWITCH amp TRANSFORMER LOCATED IN HEATER TRANSFORMER WIRE COLORS 120v W 208V R 240 0 277V BR 480 R BK 575v R 190v R 220 R 347V R ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDEO TWISTED PAIR WIRING FOR OPTIONAL USE OF COMMUNICATIONS JACK DAMPER ACTUATOR WIRING alc 8151 T couno sen o f 1 7 SWITCH i 1 4 1 1 1 6600600 a 1 1 1 1 1 1 1 41907652014 1 1 1 1 1 1 1 1 1 J DIGITAL ZONE SENSOR W COMM JACK REMOTE MTD OPTIONAL FIELD INSTALLED DIGITAL DISPLAY ZONE SENSOR tt D 52 po SENSOR w CONM JACK REMOTE MTD OPTIONAL FELO INSTALLED ELECTRIC HEATER OPTIONAL FIELO INSTALLEO PROPORTIONAL WATER VALVE OPTIONAL FIELD INSTALLED ON OFF WATER VALVE VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Figure 5 Tracer UC400 controller wiring connection diagram fan powered unit OPTIONAL FIELO INSTALLED ELECTRIC HEATER TO i TRANSFORMER lt 6 l PRESSURE TRANSDUCER i 1 OPTIONAL FIELD INSTALLED I PROPORTIONAL WATER VALVE OPTIONAL FIELO INSTALLED ON OFF WATER VALVE OCCUPANCY SENSOR IMI 2C INK
46. The space temperature controller airflow output reported airflow is bound to the flow tracking controller airflow setpoint input communicated airflow setpoint The flow tracking controller adds the configured airflow tracking offset positive or negative to the airflow setpoint communicated airflow setpoint and controls the airflow to this setpoint The flow tracking controller does not require a space temperature sensor or a discharge air temperature sensor If the calculated airflow setpoint is less than 1096 of the configured nominal airflow and the configured airflow tracking offset is less than zero the air valve is closed If the calculated airflow setpoint is less than 1096 of the configured nominal airflow and the configured airflow tracking offset is greater than or equal to zero the air valve is positioned at the configured minimum airflow The maximum airflow setpoint is limited by the configured maximum airflow Air Valve Control in Flow Tracking Control Operation The Tracer UC400 controllers support one modulating air valve for heating and cooling operation Air delivered to the space is controlled with a three wire floating point actuator that modulates the 62 VAV SVX07A EN TRANE Sequence of Operation air valve The controller positions the modulating air valve to deliver the desired airflow cooling or heating capacity The desired airflow is called the active flow setpoint Flow tracking control is provided by two
47. Tracer TU service tool and check that the communication link avoids interference Communication link should not be routed near or with any voltage source BACnet Wiring Best Practices The following wiring practices are recommended Strip no more than 2 inches 5 cm of the outer conductor of shielded wire Avoid sharing 24 VAC power between unit controllers Ensure that 24 VAC power supplies are consistently grounded If grounds are not maintained intermittent or failed communication could result 4 Check that the correct wire is used Recommended wire is twisted shielded pair See Chapter 2 for the wiring specifications for the Tracer UC400 controller Using Shielded Wire Follow these guidelines when using shielded wire Connect the shield portion of the wire at the first unit controller in the link Tape back the shield at the end of the unit controller line Wire together and tape all other shields at each unit controller 5 For final step check program by downloading good program using the Tracer TU service tool Note For Instructions on how to use Tracer TU refer to the Tracer TU online Help by clicking on Tracer TU Help in the Help menu or see Tracer TU Service Tool Getting Started Guide TTU SVNO2 EN If still not communicating to Tracer TU service tool and communication link replace controller Wired Zone Sensor Failure Troubleshooting Procedures 68 ZAWARNING Hazardous Service Procedures
48. Tracer UC400 controller outputs are switched to ground Do not jumper 24 VAC to binary output TRIAC s because damage will occur Move electric heat relay wires from the Tracer UC400 controller 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 SVX07A EN 83 Troubleshooting VAV Proportional Hot Water Failure Troubleshooting Procedures Check binary outputs ZNWARNING 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 In the event that the heat outputs are not energizing properly inspect the following 1 Zone temperature is at or above the heating setpoint Increase the Tracer UC400 controller heating setpoint 2 Verify the output configuration in the Tracer UC400 controller setup screen Unit needs to be configured as proportional hot water 3 Tracer SC has the heat output disabled Check overrides to make sure they are not inhibiting heat operation 4 Heatrelays have failed Ifthe Tracer UC40
49. UC400 controller on terminals Al2 and gt and measure the VDC It should be 5VDC If 5VDC is not present check incoming power to the Tracer UC400 controller on XFMR 24 VAC input and 5 Voltage should measure 24 10 If you measure the proper voltage at XFMR 24 VAC input and and no voltage at 12 and replace the Tracer UC400 controller Table 19 Receiver resistance Zone or Setpoint Temperature Nominal Zone Temperature Nominal Space Temperature Output Resistance Setpoint Output Resistance 55 12 8 17 47 8120 60 15 6 15 3k Q 695 Q 65 18 3 13 49k Q 597 Q 70 F 21 1 9C 11 9kQ 500 Q 75 OF 23 9 10 5kQ 403 Q 80 F 26 7 9C 9 3kQ 3050 85 29 4 8 25kQ 208 0 Airflow Failure Troubleshooting Procedures VAV SVX07A EN In the event that the 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 Recalibrate unit by cycling power to unit This can also be accomplished with Tracer TU service tool or Tracer SC Note Cycling power to the VAV board The default is to automatically cause the unit to calibrate 1 but this depends on binary value autocalibrate enable disable point However following the procedure outlined below will provide a more accurate calibration It is only necessary to perform this procedure in i
50. V Start Up Check Out Procedure Figure 8 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 Wiring and Associating the Receiver and Sensor VAV SVX07A EN The following procedure list shows the recommended order for installation Choosing a Location for Mounting the Sensor Setting the Rotary Address Switches on the Receiver and on the Sensor e Replacing and Securing the Receiver Cover e Powering the Sensor and Associating the Sensor to the Receiver e Applying Power to the Receiver e Testing Signal and Battery Strength Disassociation 23 VAV Start Up Check Out Procedure Choosing a Location for Mounting the Sensor Placement of the receiver and the sensor set is critical to proper operation In most installations distance is notthe 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 possible mount the receiver and sensor in line of sight Try to minimize the number of barriers between the pair of devices In general sheetrock walls and ceiling tiles offer little r
51. VDC 2A at 120 VAC 8A at 250 VAC BO3 Spare Relay 10A up to 277 VAC 10A at 30 VAC VDC 2A at 120 VAC 8A at 250 VAC BO4 Spare Relay 10A up to 277 VAC 10A at 30 VAC VDC 2A at 120 VAC 8A at 250 VAC 5 Heat stage 3 TRIAC 24 27 VAC 5A Resistive VA BO6 Heat stage 2 Water Valve Close TRIAC 24 27 VAC 5A Resistive VA BO7 Heat stage 1 Water Valve Open TRIAC 24 27 VAC 5A Resistive VA BO8 Air Damper Close TRIAC 24 27 VAC 5A Resistive VA 9 Air Damper Open TRIAC 24 27 VAC 5A Resistive VA Analog outputs AO1 and AO2 1 Spare Voltage output is 0 to 10 VDC 500 ohm min impedance Current output is 4 20 mA 500 ohm max impedance Note ECM fan for future production 2 Spare Voltage output is 0 to 10 VDC 500 ohm min impedance Current output is 4 20 mA 500 ohm max impedance Note For more information about wiring spare I O see the Tracer UC400 controller Installation Sheet X39641064 01 Agency listings compliance UL Open Energy Management Equipment 834Y UL94 5V Flammability CE marked FCC Part 15 Subpart B Class B Limit AS NZS CISPR 22 2006 VCCI V 3 2008 04 VAV SVX07A EN 7 General Information ICES 003 Issue 4 2004 Table 2 Agency listings compliance Standard Test Level EN 61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements part 1 General Requirements EN 55022 2006 CISPR 22 2005 Ai 2005 Radi
52. VX07A EN VAV SVX07A EN TRANE Troubleshooting Disconnect the zone sensor terminal plug from the Tracer UC400 controller and using an Ohmmeter measure the resistance across the terminals 1 and 2 Compare the resistance to temperature using Table 12 p 69 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 Verifythatthe wiring orthe Tracer UC400 controller are not defective With wires still connected to the Tracer UC400 controller disconnect zone sensor wires and check voltage DC from wires that were connected to terminals 1 and 2 of zone sensor You should measure 5VDC If 5VDC not present then see if the Tracer UC400 controller is outputting 5VDC This can be done by disconnecting the wires on the Tracer UC400 controller on terminals and and measure the VDC It should be 5VDC If you have at the Tracer UC400 controller the wires going to the zone have an open If 5VDC is not present check incoming power to the Tracer UC400 controller on XFMR 24 VAC input and should measure 24 10 If you measure the proper voltage at on XFMR 24 VAC input and and no voltage at AI1 and replace the Tracer UC400 controller Verify that the zone sensors are not shorted out Check the resistance across the wires Disconnect wires from the Tracer UC400 controller and zone sensor making sure the
53. X07A EN Sequence of Operation This chapter contains information about the following e Calibration e Occupancy Modes Space Temperature Control Single Duct Fan Powered Units e Ventilation Flow Control Flow Tracking Calibration Sequence The calibration sequence enables the controller to calibrate the air valve position and the water valve position Calibration takes place if autocalibration is enabled and either a power cycle or a transition from occupied to unoccupied has occurred Note Whether or not autocalibration is enabled the controller initiates calibration on a communicated application mode command The building automation system is responsible for the staggering of the calibration sequence that is needed between units When autocalibration is enabled and a transition from occupied to unoccupied occurs the calibration sequence starts after a fixed delay of three minutes The controller effective occupancy mode is unoccupied but runs like it is occupied during this three minute period The mode field of reported unit status reports calibration when the controller is in the calibration sequence If autocalibration is disabled the air valve and water valve are not driven closed and the flow sensor zero flow voltage reading is not recorded Refer to Table 5 p 53 for calibration actions Table 5 Calibration actions I O device Calibration action taken Result after calibration Air valve D
54. a maximum of seven wires may be required to run from the Tracer UC400 controller to the zone sensor The zone sensor options are Zone sensor temperature only Part Number X1351152801 Zone sensor with timed override TOV on cancel button Part Number X1351153001 Zone sensor with adjustable setpoint thumbwheel Part Number X1351152901 Zone sensor with adjustable setpoint thumbwheel timed override TOV on cancel button Part Number X1351152701 Zone sensor with digital display Part Number X1379088601 Display sensor has factory mounted communication module Communications module Part Number X1365146702 for one box of 12 Zone Sensor Wireless Option Wireless zone sensors are available individually or on sensor receiver sets A receiver is used to receive the signal from the wireless zone sensor and can be factory installed See BAS SVX04 EN for additional details on setup of the wireless zone sensors VAV SVX07A EN Note Currently wireless sensors do not provide a communication module option It is recommended that at least one wired sensor with communications module be installed within the network of controllers for service tool connection Wireless zone sensor temperature only Sensor Receiver Set Part Number X1379082301 Sensor only Part Number X13790821 Wireless zone sensor with adjustable setpoint thumbwheel F timed override TOV on cancel button Sensor Receiver Set Part Number X1
55. a2 1 GND LINK GNO pd or gr gr tot 1 6660000 1 1 1 1 1 1 1 81076521 1 1 1 1 1 1 1 1 DIGITAL DISPLAY ZONE SENSOR w COMM JACK REMOTE MTO e OPTIONAL FIELD INSTALLED p DAL DISPLAY ZONE SENSOR CONTROL BOX Nos FAN RELAY m gt Dem m CONTACTOR S isi tat FACTORY WIRING HEATER STAGE DAMPER M c FIELD WIRING OPTIONAL ACTUATOR OPTIONAL OR ALTERNATE WIRING ELEC HEAT WIRING 1 OPT ON 2 BARE WIRE ENDS REQUIRED FOR ALL FIELD CONNECTIONS SAT Te son ZONE SENSOR TERMINALS 1 AND 2 4 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION lt NO ADDITIONAL WIRING REQUIRED FOR NICHT SETBACK OVERRIDE ON CANCEL z i 1362 o CONTACTORS ARE 24 12 MAX COIL MERCURY CONTACTORS 1 MAX COIL CONTACTORS TRANSFORMER PROVIDED IN ALL UNITS XL ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR OPTIONAL USE OF COMMUNICATIONS JACK VAV SVX07A EN 19 VAV Start Up Check Out Procedure 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
56. acer TU online Help by clicking on Tracer TU Help in the Help menu Connection Instructions Unlike Comm4 or CommB the Tracer TU service tool connects directly to the controller rather than the communication link To connect to a Tracer UC400 controller 1 Install Tracer TU service tool onto the PC 2 Connect the USB cable 3 The PC may indicate Found New Hardware If the PC prompts you to install software complete the installation 4 Double click the Tracer TU service tool icon on the laptop PC desktop The splash screen will appear You may need to click the Connect button to continue Figure 25 Splash screen Connect Tracer TU Application version 2 0 Warning This computer program is protected by copyright laws and international treaties Unauthorized reproducbon or distribution of this program or any portion of it may result in severe civil and criminal penalties and will be prosectuted to the maximum extent possible under the law Trane 2008 All Rights Reserved 36 VAV SVX07A EN TRANE Tracer UC400 Controller Operations 5 The Tracer TU service tool Connect dialog box will appear Choose the Direct Connection Via USB cable radio button and click Connect Figure 26 Connect screen Connect Status Button Connect To Connection Type Direct Connection Via USB cable Connect Connection Detail Facility Connection Number Figu
57. al Tracer UC400 controller 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 54 VA Table 4 VA for factory installed component Style Volt Amps F Style Actuator 4 VA Air Valve Actuator C through E Style 12 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 cooling only Series D and E models consume 20 VA 12 VA forthe actuator and 8 VA for the board The heating output ratings remain the same Refer to Figure 4 p 18 and Figure 5 p 19 for the Tracer UC400 controller terminal locations and for wiring of output devices VAV SVX07A EN 13 VAV Start Up Check Out Procedure LED Description and Behavior 14 There are 15 LEDs on the front of the Tracer UC400 controller Figure 1 p 14 shows the locations of each LED and describes the behavior of each Tracer UC400 Controller Module Figure 1 LED locations lt 5 a a E 19 Marquee LED VEFPEIEVFTJI LEEREN enm m oom UC400 e TRANE lt TERDW
58. an winding integrity and bearing failure VAV Parallel Fan Failure Troubleshooting Procedures VAV SVX07A EN N WARNING Hazardous Service Procedures The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical or other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided could result in death or serious injury In the event that the fan output is not energizing properly inspect the following 1 Verify the output configuration in the Tracer UC400 controller setup screen Unit needs to be configured as parallel fan 2 Outputs on the Tracer UC400 controller are configured as normally closed Verify the output configuration in the Tracer UC400 controller setup screen Note Parallel fan can be enabled by either a differential temperature above the heating setpoint or CFM flow See Operation ch
59. ansmit 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 LED1 tq LED2 1 q SIGNAL E ADDRESS BATTERY STATUS L 1 55 28 VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure 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 chapter 1 Firmly press and release the Test button S5 on the bottom of the sensor Figure 14 p 29 2 View LED1 LED2 and LED3 to determine the strength of the signal View LED5 to determine the strength 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 Wireless sensors Model WTS and WZS sensors Model WDS sensors
60. apter for details 3 Tracer SC has the fan output disabled Check overrides to make sure they are not inhibiting fan operation 4 Aflow override exists locking out the fan output Check to make sure Tracer SC or Tracer TU has released fan disable override Note lf fan cycling is based on temperature go to step 5 and if it is based on air flow go to step 6 5 control is based on temperature and zone temperature is at or above the heating setpoint plus heating offset on units configured as temperature control A factory set differential of 0 5 F exists to prevent short cycling e Increase the Tracer UC400 controller heating setpoint causing fan to be cycled on e Lower the heating setpoint by 6 degrees and the fan should cycle off 6 If the fan control is based on flow the unit fan will be energized whenever supply airflow is below this setpoint 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 See if fan cycles on e Override damper open until CFM is above enabled flow setpoint fan should cycle off 7 Ifthe Tracer UC400 controller is calling in the status screen for the fan to be on and it is not then check the Tracer UC400 controller TRIAC output
61. arity must be maintained The 24 VAC is the hot side and 515 the ground side of the 24 input Refer to Figure 4 p 18 for the Tracer UC400 controller terminal locations The Tracer UC400 controller cannot be powered from a common 24 VAC transformer that is supplying power to a device containing full wave rectifier bridge in its power supply The acceptable voltage is 19 to 30 VAC 24 VAC nominal However voltages at either extreme may result in increased system instability Verify communications wiring has properly been terminated to link plus and negative at XFRM 24 and terminals Polarity must be maintained on the BACnet communications link Verify that the zone sensor connections are correct as detailed in the Tracer UC400 controller wiring section If heat has been added to the unit verify that the proper output connections have been made as detailed in the Tracer UC400 controller wiring section Verify that the tubing is properly connected to the differential pressure transducer VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Tracer UC400 Controller Power Wiring Power Requirements WARNING 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 ZNWARNING Elec
62. ated Emissions Class B Limit 30 MHz 1000 MHz 1 GHz 2 GHz EN 55022 2006 CISPR 22 2005 A1 2005 Conducted Emissions 150 kHz 30 MHz EN 61000 4 2 1995 1 1998 2 2001 Electrostatic Discharge ESD 8 kV air 4 kV contact EN 61000 4 3 2002 Radiated Fields 10 V m 80 MHz 1000 MHz 3 V m 1 4 GHz 2 0 GHz 1 V m 2 0 GHz 2 7 GHz EN 61000 4 4 2004 Fast Transients I O port 1 Kv AC inputs amp output ports 2 kV EN61000 4 5 1995 1 2001 Surge Transients AC input ports L L differential mode 1 kV EN61000 4 6 1996 1 2001 Conducted Disturbance 3 V 0 15 MHz 80 MHz EN61000 4 8 1993 A1 2001 Power Frequency Magnetic Field EN61000 4 11 Second Edition 2004 Voltage Dips and Interruptions 30 A m 50 Hz 0 Vnom 1 cycle 70 Vnom 25 cycle 40 Vnom 10 cycle 0 Vnom 250 cycle Note Trane declares that the product listed is in conformity with the essential requirements of Council Directive 2004 108 EC electromagnetic compatibility and conforms to the standards in this table Mounting The Tracer UC400 controller is factory installed in the control box Setting up the Tracer UC400 Controller on a BACnet Link Tracer SC and BACnet Communications Link Wiring Use 18 AWG shielded communication wire for BACnet MS TP installations Limit BACnet MS TP wiring links to 4 000 ft There is a 60 device maximum per link without a repeater Two
63. ates air valve or damper position Fan Output The Fan will be shown as On Off or None Heat Output Will indicate reheat capacity in Percentage Use the Analog tab to view the analog inputs outputs and values These three categories are presented in expanding boxes that stretch across the middle of the screen and they are defined from the factory To expand the box and view its contents click the arrow icon on the left side of the box header in each category View Details dialog boxes may be accessed by clicking on the details buttons located at the end of each line item Note For field use of spare analog points see BAS SVX20 EN Grid Columns Index Displays the sequence number assigned to the point Name Displays the name of the point Value Displays the current or assigned value of the point Units Displays the units of measure in which the point is expressed State Displays the state of the point Point states are Normal Out of Service Fault Locked and Alarm Control Click to bring up the Override Request dialog box on which you can change the state of the point Details Accesses the View Details Analog dialog box that contains information about each point including its reference priority owner and control time remaining for the current priority level or state Use the Binary tab to view the binary inputs outputs and values These categories are presented in expanding boxes that stretch across the middle of
64. b screens on the Controller Settings button to edit point definitions 1 Click the Analog Binary or Multistate tab 2 Select the radio button on the left side the row of the point you want to edit 3 Select the Edit option from the Action drop down menu The appropriate Point Configuration dialog box appears 4 Editthe individual settings you want to change Click Help to see descriptions of the various controls 5 Click Save when you are finished to save the point or points to the existing points file on your hard drive Controller Settings Tab 46 The Controller Settings tab contains drop down lists and options you can use to select some controller and display settings The content of this screen is dynamically generated depending on the type of controller to which you are connected and the protocol your system is using to communicate with the controller Date and Time Current Time Current Date Displays the current date and time from the controller Time Format Use this drop down list to select your preferred time format Short Date Format Use this drop down list to select your preferred date format Long Date Format Use this drop down list to select a hyphen or slash separator or to omit a separator To set the controller date and time 1 Click the Date and Time expanding box 2 Select the preferred Time Format Short Date Format and Long Date Format from the drop down list boxes 3 Click Save to save your se
65. below the active heating setpoint and minimum airflow requirements are met When the zone temperature rises above the active heating setpoint by 0 5 F 0 28 C stage 1 is de energized Stage 2 energizes when the space temperature is 1 F 0 56 C or more below the active heating setpoint and is de energized when the space temperature is 0 5 F 0 28 C below the active heating setpoint e Stage 3 energizes when the zone temperature is 2 F 1 11 C or more below the active heating setpoint and de energizes when the space temperature is 1 5 F 0 83 C below the active heating setpoint When reheat is de energized the cooling minimum airflow setpoint is activated See Table 6 p 57 for single duct reheat operation and Table 7 p 58 for fan powered reheat operation Hot Water Heat Two types of control of hydronic heat are supported On Off and modulating Hydronic heat is enabled if there is no valid supply air temperature Hydronic heat is disabled if the supply air temperature is greater than the configured reheat enable setpoint Note Steam is not supported On Off Hot Water Heat Refer to staged electric heat for operation Difference is we are controlling a two position hot water valve instead of contactor energizing an electric heat strip See Table 6 p 57 for single duct reheat operation and Table 7 p 58 for fan powered reheat operation Proportional Hot Water Reheat Proportional hot water reheat uses 3 wire floa
66. ber TGP2 Status Displays the operational state of the TGP2 program engine in which all programs execute TGP2 Resources Displays the amount of memory consumed by the programs Data Log Button VAV SVX07A EN Figure 28 Data log button Le The Data Graphing Utility available via the Data Log button provides the following capabilities Capture all data or a subset of the data put out by a controller directly to a log file on your hard drive You can specify the data points you want to capture in a logging configuration created onthe Data Graphing Utility s Session Log Tab View upto eight data items in graph strip chart format using the View Graphs Tabs You can manually select any of the available data items in the Available Data list or use a predefined graphing template You can launch multiple graphs and view them on your screen simultaneously View archived data from any of the previous session logs or from the graphing data you have saved on your hard drive 41 Tracer UC400 Controller Operations Export captured data to various file formats in third party software tools Save graphs as image files View Graphs Tab 42 The View Graphs tab contains controls used to set up and generate graphs line charts presenting a subgroup of logged data points You can use the predefined templates or you can define your own custom graphs You can also save your graph definition as a new template
67. cer UC400 Controller Failure Troubleshooting Procedures 66 ZNWARNING 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 1 Check the incorrect supply voltage or no voltage e Check Marquee LED Shows solid green when the Tracer UC400 controller is powered and operating normally Shows solid red when the Tracer UC400 controller is powered but represents low power or a malfunction If marquee LED is solid red check incoming power Measure the power input to the Tracer UC400 controller on XFMR 24 input and The supply voltage should be between 19 and 30 VAC 24 VAC cataloged However voltages at either extreme may result in system instability f voltage check up stream of controller to see were voltage has been interrupted See complete wiring diagrams Figure 37 p 86 to Figure 44 p 93 VAV SVX07A EN 5 TRANE Troubleshooting Check for short e Remove all wires from controller except incoming power Check device using Tracer TU service tool to see if the Tracer UC400 controller is operating
68. cer UC400 controller is compatible with the latest wireless zone sensors available from Trane Wireless zone sensors provide flexibility of sensor location and re location as well as reducing the cost of installation Wireless zone sensor receivers are available as a factory installed option General Information Flash Download The Tracer UC400 controller has been designed with flash memory This allows the option of upgrading the controller in the field features corrections to defects without changing out the controller Trane Controller Compatibility The Tracer UC400 controller is a BACnet compliant controller As such the controller is compatible with the latest generation of Trane controls This allows the Tracer UC400 controller to exist on the same communication wire as the rest of our controllers and share data with them as required Drive Min and Max from Zone Sensor When applied with a Trane zone sensor module that includes a thumbwheel setpoint or a LCD display the Tracer UC400 controller can easily be overridden to minimum and maximum flow By simply turning the thumbwheel to or increasing the setpoint to maximum on display sensors end of range in one direction the controller drives the air valve to the minimum cooling flow setpoint Similarly turning the thumbwheel to the or decreasing the setpoint to minimum on display sensors end of range in the other direction the controller drives the air valv
69. cing professional will use the TU Service Air and Water Balancing tool to calculate this value and balance the VAV box Normally you should not need to change this value here Minimum AirFlow Delta The minimum amount of change in the primary airflow required before airflow and the airflow setpoint are communicated on the communication link The percentage of change required is based on the nominal airflow For example if the nominal airflow is 1000 cfm and the minimum delta is 296 the primary airflow must increase or decrease by 20 cfm before the change is communicated on the communication link Ventilation Setup Ventilation Setpoint BAS The Tracer Summit BAS uses the ventilation setpoint from all the VAW boxes to calculate how much outdoor air OA the system needs During the occupied mode this setpoint is the active setpoint for ventilation Ventilation Standby Setpoint During the unoccupied mode this setpoint is the active setpoint for ventilation Space CO2 Setup Low Limit The controller adjusts the ventilation setpoint only when the CO2 concentration falls within the high and low limits When the CO2 concentration falls below the low limit this indicates that the zone is most likely unoccupied and that a minimum of ventilation air is required to ventilate the zone High Limit The controller adjusts the ventilation setpoint only when the CO concentration falls within the high and low limits When the CO2 concentration rises
70. city limited by communicated supply heat control closed Total capacity limited by communicated supply heat control Note Abbreviations Zt Zone temperature HSP Heating setpoint 58 VAV SVX07A EN TRANE Sequence of Operation Space Temperature Fan Powered Units VAV SVX07A EN The Tracer UC400 controllers provide three fan options when in space temperature control mode One speed ON OFF series fan One speed ON OFF parallel fan and Flow control parallel fan This controller supports an electronically commutated motor ECM The controller turns the ECM fan On and Off It does not change dynamically the ECM fan airflow To assist with flow balancing the fan flow rate is stored as a configuration item Series Fan The series fan is always controlled as a one speed ON OFF fan The fan operates continuously in the occupied or occupied standby mode The fan cycles ON and OFF with calls for heating or cooling in the unoccupied mode The series fan operates in a manner that prevents reverse rotational operation The series fan is turned ON whenever one of the following occurs e Target airflow control point is greater than zero e Target air valve position is not closed or Actual air valve position is not closed Series fan operation during calibration During calibration the series fan is OFF The series fan is turned OFF for 10 seconds during calibration after the air valve closes all the way
71. ck the settings 1 Verify that the sensor is in operating mode and at the home screen 2 Choose a setting to lock or unlock Select the setpoint by pressing the up or down arrow 1 p Setpoint Figure 23 Selectthe system menu by pressing the center button Use the left or right arrow to choose the setting 3 Press the left and right arrows for 4 seconds VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Figure 24 If you try to access a feature that is locked the lock symbol will appear on the displays If you press a keypad button to try and change a locked setting the locked symbol will flash VAV SVX07A EN 35 TRANE Tracer UC400 Controller Operations This chapter contains information about the following e Connecting with Tracer TU Service Tool Status Button e Data Log Button e Controller Settings Button Equipment Settings Button Connecting with the Tracer TU Service Tool The Tracer TU service tool is a service tool that allows parameters to be viewed or adjusted in the Tracer UC400 controller It is a software application for monitoring configuring balancing and testing Trane unit controllers such as the Tracer UC400 controller Installing Tracer TU Service Tool Note For PC requirements and detailed instructions see Tracer TU Service Tool Getting Started Guide TTU SVNO2 EN Note For instructions on how to use the Tracer TU service tool refer to the Tr
72. ctive unoccupied heating setpoint and the active unoccupied cooling setpoint When the controller is in the unoccupied mode and configured for ventilation flow control it will not run in unoccupied mode the air valve is closed and local heat is disabled A flow tracking controller runs the same as when it is occupied When the controller is in the unoccupied mode and configured for flow tracking control it runs the same as it does in occupied mode Occupied Standby Mode Occupied standby mode is used to reduce the heating and cooling demands during the occupied hours when the space is unoccupied It can be activated for a classroom currently not in use The controller can be placed in the occupied standby mode when a communicated occupancy mode request from a communicated occupancy override occupancy schedule or occupancy sensor is combined with an occupancy request from the local hardwired occupancy binary input Once in occupied standby mode the controller uses the occupied standby cooling and heating setpoints which typically cover a wider range than the occupied setpoints The wider range reduces the demand for heating and cooling in the space When the communicated occupancy mode request is unoccupied the occupancy binary input signal if present does not affect the controller occupancy mode When the communicated occupancy mode request communicated occupancy override not valid communicated occupancy schedule occupied or commu
73. ctory The Tracer UC400 controller can be configured from the factory with three different application programs Space Temperature Control STC Ventilation Flow Control VFC and Flow Tracking Control FTC The Tracer UC400 controller programmed for STC modulates a VAV s damper blade based zone temperature measured airflow and setpoints 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 setpoints depending on space conditions Additionally fan and heat outputs may be energized depending on the application The Tracer UC400 controller configured for VFC can be applied to a VAV terminal and used to temper cold outdoor air OA that is brought into a building for ventilation purposes The tempered air is intended to supply an air handling unit which provides comfort control to the zones it is serving The VAV terminal supplies the correct amount of ventilation air and when reheat is added tempers the ventilation air to reduce the load on the air handler by sensing the discharge air temperature of the VAV unit and controlling its long term average to the discharge air temperature setpoint The Tracer 0 400 controller can be configured for FTC and has two units with Tracer UCA00 controllers working together to provide flow tracking control One Trac
74. d refers to the 8 minimum difference g between the heating and B Cv cooling setpoints heat cool setpoint offset Note N A for VAV units 1 8 F 10 8 E 1 C 6 C System 9 139 ore OL DE Pd or O x E Td emergency heat B heat cool B heat cool off B auto off 2 heat cool off auto off Gp no system options enabled VAV SVX07A EN 31 VAV Start Up Check Out Procedure Setting Configuration options System continued b Dual setpoint Note for C No setpoint 16 L3 pd emergency heat heat cool auto off CE Gee O 10 amp heat cool auto off D NB emergency heat heat cool off Note N A for VAV no system options enabled Fan Note Tracer UC400 controller 6 8 8 does not use this to Uc Aum a gt control the fan in a VAV 98 E AUTO 5 SS P Auro 95 lt gt Zz AUTO 4 ER fan powered unit B B B auto off auto off auto off low auto high on low high med high BE 2 7 9 B eo off high on off low high off low no fan options med high enabled Occupancy timed override g gt gt enabled disabled 32 VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Figure 19 The example shows a display that has been configured
75. d result in death or serious injury If PSC Variable speed motor control is not changing speed of the motor inspect the following Wires connected improperly Check wiring to make sure speed control is wired correctly See Figure 37 p 86 and Figure 44 p 93 for wiring schematic Check voltage selection switch on side of variable speed motor control Should be set for motor voltage To check speed control Turn voltage selection switch fully CCW Turn motor speed control potentiometer fully CCW Motor should remain off Turn voltage selection switch fully CW Motor speed control potentiometer still fully CCW Measure motor voltage Should be no more than 8 VAC lower than line voltage e With voltage selection switch still fully CW Turn Motor speed control potentiometer slowly fully CW HI Should go to full speed smoothly Note If it fails any of these tests replace PSC motor speed controller VAV SVX07A EN TRANE Troubleshooting VAV Electric Heat Stage s Failure Procedures WARNING 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 re
76. d to restrict the tenant from making changes Configuration Procedure To configure settings on the model WDS sensor follow this procedure in the order presented 1 Press the configuration button for 3 seconds Figure 15 Configuration button The display will change to configuration mode When the sensor is in configuration mode a wrench symbol appears on the display and the menus are separated by lines as illustrated in Figure 16 p 30 Figure 16 2 Press the center button on the keypad to begin the configuration process 30 VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Figure 17 GAD 6 gt Center button lt p 3 Configure the sensor options in the order shown in Figure 18 p 31 Review the display to ensure that you have selected the correct configuration options Press G to scroll to the next selection e Press v to move to the next menu Figure 18 Wireless configuration Setting Configuration options Temperature Choose Fahrenheit or Celsius Choose the degree resolution whole degrees half degrees or tenths of degrees 3 rms n LI Lic re S 8 16 25 pr Pl Setpoint Note Dual setpoints are not applicable to units Deadband available for dual setpoint system only a Single setpoint Note For VAV no system options enabled should be selected Note Deadban
77. d to the point Name Displays the name of the point Value Displays the current or assigned value of the point Units Displays the units of measure in which the point is expressed State Displays the state of the point Point states are Normal Out of Service Fault Locked and Alarm Control Click to bring up the Override Request dialog box on which you can change the state of the point Details Accesses the View Details Multistate dialog box that contains information about the point s reference priority owner control time remaining for the current priority level or state feedback reference and feedback value This is a log that records each diagnostic independently of other diagnostics Model Displays the model number of the equipment BAS Communication Displays the status of the communications network Alarms Grid The grid columns are as follows Alarm icon There are four alarm icons indicating levels of severity Redindicates an alarm requiring immediate attention Orange indicates low priority alarm Blue indicates a normal condition and Yellow indicates a warning alarm Notification Class Displays the class to which the notification is sent Classes are set up in Event Routing on the Tracer SC Date Time Displays the date and time of the event that produced the alarm VAV SVX07A EN TRANE Tracer UC400 Controller Operations Point Name Displays the name of the affected point De
78. de the cable Do not run communication cable alongside or in the same conduit as 24 VAC power This includes the conductors running from TRIAC type inputs e In open plenums avoid running wire near lighting ballasts especially those using 277 VAC Use same communication wire type without terminators for the zone sensor communication stubs from the Tracer UC400 controller IMC terminals to the zone sensor communication module Note For more information see wiring guide BAS SVN03 EN Unit Controller Wiring for Tracer SC System Controller Figure 2 BACnet link wiring in daisy chain configuration with Trane BACnet terminators and zone senor communication stubs 7 cl TE i Wut wu 222224 2002 TR fem a n y E ms a oe BACnet Terminator 7 VAV SVX07A EN 15 VAV Start Up Check Out Procedure Rotary Switches There are three rotary switches on the font of the Tracer UC400 controller device that are used to define a three digit address when the Tracer TU service tool is installed on a BACnet communications network The three digit address setting is
79. dent control When a valid flow value is present the controller operates under pressure independent control If after an airflow sensor failure the airflow returns to the valid range airflow value greater than 1096 of configured nominal airflow the controller automatically resumes pressure independent control Local Setpoint The Tracer UC400 controller will display a local setpoint if the thumbwheel is enabled or disabled off of the zone sensor Space Space Temperature The temperature as reported by the zone sensor Space Temperature Active Setpoint The active or actual setpoint currently used by the Tracer UC400 controller Can be either Heating or Cooling depending on operating mode Space temperature from BAS Shows the Setpoint being communicated to the VAV unit from a BAS system Discharge Air Temperature Shows the discharge air temperature input which is the temperature of the air leaving the VAV box Ventilation Discharge Air flow Measured in CFM When a valid flow value is present the controller operates under pressure independent control If after an airflow sensor failure the airflow returns to the valid range airflow value greater than 1096 of configured nominal airflow the controller automatically resumes pressure independent control When the communicated airflow setpoint is invalid the flow sensor has failed or calibration has failed the controller VAV SVX07A EN Analog Tab Binary Tab VAV SVX07A
80. e electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided could result in death or serious injury 2 Measure the receiver output resistance by following the procedures Make sure the black wire GNS SIGNAL and the yellow wire GND POWER are grounded see Figure 34 p 74 for wiring diagrams Figure 34 om 00 1 1 24vac KGN 1 BK en R Make sure the receiver is powered up Disconnect the SETPOINT wire red and the ZONE wire white from the host unit controller Measure resistance between the grounded GND SIGNAL wire and either the SETPOINT or ZONE wire Compare resistance measurements to those presented in Table 19 p 75 e If resistance is not correct replace receiver Table 18 Output failure modes of operation Situation Zone Temperature Output Zone Setpoint Output Receiver address 000 11 17 72 5 F 22 5 451 Q 72 5 F 22 5 C indefinitely indefinitely Receiver address 001 to 999 Receiver has powered up but has not 1417 KQ S ege 22 5 C 451 Q 72 5 F 22 5 C received a communication from sensor Receiver address 001 to 999 Receiver does not receive a communication within 35 minutes Open Open fr
81. e validates both the proper operation of all outputs and the capability to measure all inputs The purpose of the test sequence is to minimize the labor required to commission the unit in the field The auto commissioning test does not require a flow sensor or a Discharge or Supply air temperature sensor If there is no flow sensor the controller runs in pressure dependent mode A temperature sensor in the discharge air stream is required for testing of the fan and the reheat The fan and the reheat are not tested if the discharge air temperature sensor is not present The fan is not tested if there is no fan Local reheat is tested if it is present Remote reheat is not tested The sequence starts on receipt of an auto commission command from the Tracer TU service tool start button or the Tracer SC The auto commission command contains a time date stamp No third party tool can start the auto commissioning sequence The user then chooses to commission all VAV boxes or box The results of auto commissioning are contained in a structured network variable called reported auto commissioning report The controller places the time date stamp in the report The structure is loaded with the default values for all ofthe fields when the auto commissioning test sequence starts The fields are updated with the results as the sequence progresses The data is held until the next auto commissioning test If an auto commission command is received in the
82. e 15 LEDs on the front of the Tracer UC400 controller Figure 1 p 14 shows the locations of each LED and a description of its behavior in specific instances Marquee LED Shows solid green when the Tracer UC400 controller is powered and operating normally Shows solid red when the Tracer UC400 controller is powered but represents low power or a malfunction VAV SVX07A EN 65 Troubleshooting e Blinks red when an alarm exists LINK e The TX LED blinks green at the data transfer rate when the Tracer UC400 controller transfers data to other devices on the link e The RX LED blinks yellow at the data transfer rate when the Tracer UC400 controller receives data from other devices on the link IMC Not used Service Shows solid green when pressed BO1 to BO9 Shows solid Yellow when corresponding binary output is on Green Service LED Table 11 p 66 shows and describes green service LED activity Table 11 Green service LED activity Green Service LED Activity Description LED is Off continuously after power is applied to the Normal operation controller LED is On continuously even when power is first applied to 5 pressed the Service push button or the controller the controller failed Uninstalled normal controller mode Use the Tracer TU LED flashes approximately once every two seconds service tool service tool to restore the unit to normal operation Tra
83. e 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 With flow going 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 x 596 replace transducer Supply Discharge Air Temp Sensor Failure Troubleshooting Procedures VAV SVX07A EN ZAWARNING Hazardous Service Procedures The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical or other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of
84. e sensor LED2 On gnal margin for reliable communication LED On Displays for 5 seconds then constantly Off Tul LED1 Off LED2 On LED3 On Displays for 5 seconds then constantly Off Satisfactory signal strength Adequate signal strength for reliable communication Moving sensor or receiver may improve signal strength Increased channel switching may reduce battery life LED1 Off LED2 Off LED3 On Displays for 5 seconds then constantly Off Tul Poor signal strength Unreliable communication Strongly recommend moving data sensor or receiver to a better location Note When checking signal strength both LED1 and LED3 on the receiver and sensor illuminate in unison if the sensor and receiver are associated Use this feature to confirm association VAV SVX07A EN 73 Troubleshooting 74 ZAWARNING Hazardous Service Procedures The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical or other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with liv
85. e stage of hot water reheat is available staged hot water does not allow tight control of the discharge air temperature Although the controller operates in this configuration it is not recommended Staged Reheat Control Algorithm Integral Only An incremental form of the integral PID algorithm computes the desired level of reheat capacity The algorithm is run once every 10 seconds Modulating Reheat Control Hot Water Only Units equipped with hot water coils should be sized so the maximum temperature of air leaving the coil does not exceed 140 F 60 C If hot water reheat is installed the preferred method of control is with a modulating valve The modulating valve enables an instantaneous discharge air temperature within the dead band of the discharge air temperature setpoint The reheat capacity algorithm for modulating hot water discharge air temperature control is the same algorithm used to control modulating hot water valves for a space temperature controller Modulating Reheat Control Algorithm Proportional Integral An incremental form of the proportional integral algorithm runs once every 10 seconds and calculates the reheat capacity required to meet the discharge air temperature setpoint The required capacity is equal to valve position Freeze Protection Hot Water Only Units with hot water coils installed are susceptible to freezing It is important to prevent the water coils from freezing Freeze protection occurs only
86. e to the maximum cooling flow setpoint Auto commissioning Report Tracer SC Tracer TU Tracer SC and Tracer TU both include auto commissioning reports that extracts and formats the commissioning data for each VAV controller This commissioning report is valuable both for the installer and for the owner The feature enables the system to be commissioned by exception a benefit for the installer The feature also can be used as validation valuable to the owner Simpler VAS Tracer SC includes a new VAV Air System VAS specifically designed for both BACnet and LonTalk VAV controllers This new VAS was designed to be much simpler to understand and provides a wizard to aid in first time setup of a VAS Static Pressure Optimization As a part ofthe standard application VAS calculates the duct static pressure setpoint based on the VAV unit with damper in the maximum flow position Ventilation Optimization As a part of the standard application the VAV system has the ability to calculate the ventilation setpoint for the air handling unit In addition the Tracer UC400 controllers have a ventilation ratio limit feature that automatically increases airflow to maintain the required ventilation while operating within system limits for outside air percent concentrations in the supply air stream CO2 Based Demand Control Ventilation As a part of the standard application the VAV system has the ability to calculate the ventilation setpoint for
87. eceiver 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 while the channel scan is in progress Note Do not attempt 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 27 Figure 12 LED3 blinks when the receiver is ready to be associated with a sensor RECEIVER a WE LED3 LED3 will begin to blink after 10 seconds VAV SVX07A EN 27 VAV Start Up Check Out Procedure Powering the Sensor and Associating the Sensor to the Receiver 1 Verify that the sensor is set to the same address as the receiver it is to be associated with 2 Remove the insulation barrier which is a plastic strip located between the two batteries Figure 13 p 28 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 Adisassociated sensor will tr
88. ed data in one or more graphs To capture live data you first configure and start a session log that runs in the background using the Session Log screen You can then set up and launch one or more graphs that visually track data items included in the session log using the View Graphs screen The Session Log tab allows you to select the specific data points tracked during session logging along with the name and location of the log file You can also save the setup definition and start the session log from this screen See related topics below Note You cannot graph data items that are not included in the session log configuration Choose Data Sampling Rate Use the hh mm ss spin box to specify the time between each sample For example a rate of 00 00 10 would result in a snapshot of data values being taken every 10 seconds File Automatically name session log Use this check box to accept the system generated log file name and default location Browse Click the Browse button to navigate to and specify an alternate file location which is then displayed in the entry box below Log file entry box Displaysthe selected path and file name orusethe entry boxto manually enter the full path and file name of the log file Data Selection Category Select a subsystem category from this drop down list For example in the case of a chiller the list could include Compressor Evaporator Motor Purge and so on Available Data Lists all ava
89. efinition as a reusable template Start Graph Click this button to start graphing the specified data points The Display Graph window appears after you click Start Graph It displays the generated graph you define in the Choose Data box A legend is provided to pair colors with selected data points The following controls appear on the Display Graph window Data Save Use this button to save the captured data in a comma separated variable CSV format file written to your hard drive All data recorded on the chart is saved in the file Graph Image Print Use this button to print the graph image Preview Use this button to preview the graph image before you print it Save Use this button to save the graph image to a file for subsequent printing and analysis Copy Use this button to copy the graph image to the clipboard so you can paste it in a file Zoom Zoom Reset Click this button to restore the graph to its original appearance after zooming in on an area of interest VAV SVX07A EN Session Log Tab e TRANE Tracer UC400 Controller Operations Show Legend Use this check box to show and hide the legend that displays the corresponding color of each data point Stop Graph Use this button to halt graphing when you have sufficient data for your purposes You can use the Tracer TU Data Logging Utility to capture live data from a controller at a specified sampling rate You can then graph subsets of the captur
90. ement control and laboratory use EMC requirements part 1 General Requirements Class B Limit 30 MHz 1000 MHz 1 GHz 2 GHz 150 kHz 30 MHz 8 kV air 4 kV contact 10 V m 80 MHz 1000 MHz 3 V m 1 4 GHz 2 0 GHz 1 V m 200 GHz 2 7 GHz port 1 kV AC inputs and output ports 2 kV AC input ports L L differential mode 1 kV 3 V 0 15 MHz 80 MHz 30 A m 50 Hz 0 Vnom 1 cycle 70 Vnom 25 cycle 40 Vnom 10 cycle 096 Vnom 250 cycle 09 03 2008 02 19 2009 European Contact Societe Trane Epinal France 1 rue des Ameriques B P 6 F 88191 Golbey Cedex France Phone 33 329 31 73 00 Fax 33 329 81 24 98 This document validates CE conformity of the Tracer UC400 Unit Controller TRANE www trane com Literature Order Number VAV SVX07A EN Date May 2010 Supersedes VAV SVX07A EN March 2009 For more information contact your local Trane T h li f A d d d d he riah office or e mail us at comfortGtrane com rane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice
91. er 24 VAC to BO8 and BO9 because damage will occur f damper actuator does not open or close replace actuator Series Fan Failure Troubleshooting Procedures ZAWARNING Hazardous Service Procedures The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical or other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided could result in death or serious injury In the event that the fan output is not energizing properly inspect the following 1 Verify the output configuration in the Tracer UC400 controller setup screen Unit needs to be configured as series fan 2 Outputs on the Tracer UC400 controller are configured as normally closed Verify the output configuration the Tracer UC400 controller setup screen Note Series fan powered units in the occupied mode has the fan cont
92. er UC400 controller is configured from the factory with the Space temperature program and the other is downloaded with the FTC program The STC airflow output is bound to the flow tracking controller airflow setpoint input The flow tracking controller adds the configured airflow tracking offset positive or negative to the airflow setpoint communicated airflow setpoint and controls the airflow to this setpoint The Tracer UC400 controller is BTL compliant with BACnet an open standard building automation protocol It meets the Application Specific Controller ASC profile per ASHRAE 135 2004 This allows the Tracer UC400 controller to integrate with other BACnet systems Available Inputs Inputs include a twisted shielded communication link zone sensor duct temperature sensors optional Occupancy Sensor optional Discharge Air Temperature DAT and or Supply Air Temperature SAT CO2 sensor and 24 power In addition to the points used for the application the spare inputs and outputs on the Tracer UC400 controller may be used for ancillary control which can be programmed using Tracer TU Tracer Graphical Programming 2 TGP2 Note For more information on using spare points see BAS SVX20 EN Tracer UC400 Programmable Controller Installation Operation and Maintenance General Information Shipping amp Storage Each VAV order ships with service literature When unpacking make sure that the literature
93. er cooling only hot water or field installed reheat 86 24 60HZ NEC CLASS 2 CONTROL CIRCUIT LOAD 12 WITHOUT HEAT PRESSURE TRANSDUCER IRANE RELAYS Ee Ld CONTROL BOX I reas ORuER 8 i NOT CONNECTED OPTIONAL xe FELD INSTALLEO Ls HEATER STAGE AM buenos EU ____ 2 OPTIONAL ELEC HEAT ACTUATOR NOTE 1 FACTORY WIRING M ee FIELD WIRING OPTIONAL OR ALTERNATE WIRING 2 BARE WIRE ENDS REQUIRED FOR ALL FIELD CONNECTIONS ZONE SENSOR TERMINALS 1 AND 2 REQUIRE SHIELDED TWISTED PAIR WIRING FOR COMMUNICATIONS JACK EQUIPPED ZONE SENSOR OPTION lt 2 ADDITIONAL WIRING REQUIRED FOR NIGHT SETBACK OVERRIDE lt Q F UNIT MOUNTED TRANFORMER IS NOT PROVIDED POLARITY FROM UNIT TO UNIT MUST BE MAINTAINED PREVENT PERMANENT DAMAGE TO CONTROL BOARD IF ONE LEG OF 24VAC SUPPLY 15 GROUNDED THEN GROUND LEG MUST BE CONNECTED TO T8 2 CONTACTORS ARE 24 12 MAX COIL MERCURY CONTACTORS 10VA MAX COIL MAGNETIC CONTACTORS lt 71 OPTIONAL FUSE DISCONNECT SWITCH amp TRANSFORMER LOCATED IN HEATER TRANSFORMER WIRE COLORS 120 208V R 240V 0 277V BR 480V R BK 579V 190v R 220v R 347V R lt E ZONE SENSOR TERMINALS 6 AND 7 REQUIRE SHIELDED TWISTED PAIR WIRING FOR O
94. ess 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 9 p 25 Important limitations are as follows e Multiple pairs may be located in close proximity e 1156 not possible to associate more than one sensor to a receiver nor is it possible to associate more than one receiver to a sensor VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Figure 9 Setting the rotary address switches on the receiver and the sensor Do not remove the insulation strip yet WIRI 54 23 23 2 RENE 23 23 23 Kez el IL LERES di Sg 19 5 19 19 q 5 19 19 p 95 1 ww Ste Em d 5 a DDRESS ADDRESS 5 FP TUS POWER 0533 cat BEY L T HEATING SET Sa 85 FAN SYSTEM 35 INBEAESS 55 w d 1 24VACIDC COMM U COMM Setting Receiver Address 1 Using a small screwdriver set the three rotary address switches locations S1 S2 S3 on the receiver Figure 9 p
95. estriction to the propagation of the radio signal throughout the building concrete or metal barriers offer the most restriction The transmission range for the sensor is as follows Open range 2 500 ft 762 m packet error rate 2 Usable range 200 ft 61 m e Typical range 75 ft 23 m Ambient considerations Avoid locations that are outside the operating temperature and humidity range Location Considerations for the Sensor When selecting a location for the sensor consider both thermal and radio transmission characteristics of the location Thermal considerations Avoid areas of direct sunlight Avoid areas in the direct air stream of air diffusers e Avoid exterior walls and other walls that have a 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 They will decrease radio signal quality Avoid placing the sensor inside metal enclosures Avoid radio transmissions through thick solid concrete walls Setting the Rotary Address Switches on the Receiver and the Sensor 24 Note To expedite the installation and association process set the addresses before applying power to the receiver The proc
96. fective If a soft set ID is present and you want to return it to a hard set device ID a Click Remove Soft Set ID b Click Save c Cycle the power to the controller to make the change effective 47 Tracer UC400 Controller Operations Equipment Settings Button Setpoints Tab 48 Figure 30 Equipment settings button ES On this button you can set in the Tracer UC400 controller setpoints and other settings as well as configure the controller parameters You can change a number of equipment setpoints and setup parameters from the Equipment Utility screens Scroll down through the expanding boxes to locate the setpoints you need to change Selecting a value from a drop down list Io Entering a new value directly in the entry field The value entered must be within the minimum and maximum limits Clicking and moving the slider The value changes to match the slider position Clicking the Revert button to restore the setting to a previous value Clicking the Default button to restore the setting to its system default value gr d te Click Save when you complete your changes Note When you leave a screen without clicking Save a dialog box appears asking if you want to save the new values Default Setpoints Unoccupied Cooling Setpoint Setpoints have a range from 40 0 F to 115 0 F 4 44 C to 46 11 C This cooling setpoint is used when the UCM is unoccupied The unoccupied coolin
97. figured a session log click the Data Log tab on the right side of the Tracer TU service tool window The View Graphs and Session Log tabs appear across the top of the viewing area Click the Session Log tab Set the time interval between samples on the Sampling Rate spin box This setting specifies how often Tracer TU captures a snapshot of the selected data points For example a data capture could occur every five seconds 15 minutes or once every hour Select the Automatically Name Session Log check box to use a system generated location and file name or click the Browse button to specify an alternate path and filename Select a major category from the Categories drop down list if you want to log only a subset of the available data points Select individual data points or groups of data points for logging by using the arrow controls For Example To transfer just a few items from the Available Data box to the Selected Data box highlight a data point you want to log then click the single right arrow key gt to transfer it to the Selected Data box Repeat for each data point you want to transfer You can also highlight several data points at once by pressing Ctrl while clicking each item with your mouse VAV SVX07A EN TRANE Tracer UC400 Controller Operations To eliminate just a few items from a predefined category first transfer all of the items to the Selected Data box using the double arrow and then eliminate any items
98. for a classroom currently not in use Standby Heating Minimum is the minimum amount of airflow desired when in the heat mode during this mode Heating Minimum Airflow 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 Heating Maximum Airflow The controller enters maximum flow heat on receipt of a communicated command and remains in maximum flow heat until the command changes The VAV SVX07A EN TRANE Tracer UC400 Controller Operations controller maintains the flow rate at the heating maximum airflow This is normally used with a rooftop unit with staged heat that needs a Max constant volume of air movement to keep the heat exchanger from overheating and tripping the heat in the rooftop unit tripping on a high limit safety Local Heat Minimum Airflow If the Min Local Heat flow is enabled then the Min 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 Commissioning Tab VAV SVX07A EN Actions Calibration Start Button The calibration sequence enables the controller to calibrate the air valve position and the water valve position as well as calibrate the flow sensor Auto commissioning Start Button The controller auto commissioning test sequenc
99. g setpoint must be greater than or equal to the unoccupied heating setpoint plus 2 0 F 1 1 C Occupied Standby Cooling Setpoint Based on the controller occupancy mode the active space cooling setpoint is the occupied stand by cooling setpoint The controller can be placed in the occupied standby mode when a communicated occupancy mode request from a communicated occupancy override occupancy schedule or occupancy sensor is combined with an unoccupied request from the local hardwired occupancy binary input Note This setpoint allows inactive spaces in the occupied mode to float to a more energy saving setpoint until occupancy mode deems it necessary to use another setpoint as its active setpoint Occupied Cooling Setpoint Setpoints a range from 40 0 F to 115 0 F 4 44 C to 46 11 C If a zone sensor thumbwheel setpoint is not being used this setpoint will be used as the UCM s active cooling setpoint during occupied times The cooling setpoint must be greater than or equal to the heating setpoint plus 2 0 F 1 1 C Note Occupied cooling and heating setpoints must be set within the cooling setpoint high limit and the heating setpoint low limit in order to control to the proper setpoints Occupied Heating Setpoint Setpoints have a range from 40 0 F to 115 0 F 4 44 C to 46 11 C If a zone sensor thumbwheel setpoint is not being used this setpoint will be used as the UCM s active heating setpoint during occupied times The
100. ges the entry to 0 None When the value of this field is not None the configuration of binary output 1 is set to Normally Open Fan Type Select the type of fan used by the UCM If you edit the unit type field Valid Selections Parallel Series Parallel Fan Control This entry will determine if a parallel fan will be controlled based on zone temperature or on flow conditions The entry field on this line will disappear if the unit does not have a parallel fan Parallel Fan Setup If Parallel fan control has been edited to Space Temperature the fan control offset will be entered as a temperature offset 3 F to 8 F which will be added to the heating setpoint If Parallel fan control has been edited to Primary Flow this line will be entered as a percent 0 to 100 Note See the Sequence of Operations section of this manual for details on parallel fan operation Reheat Settings Reheat Choose between reheat options of None Hot water or electric heat and then press the save button Valve Control Type The choices are two position and modulating Choose the correct valve and press the save button Location of Reheat Choices are Local and Remote There is an additional binary value point to select whether local or remote reheat has priority By selecting Local the VAV unit will use local reheat before remote reheat If Remote is selected it does the opposite in that the VAV unit will use remote heat before local heat VAV SV
101. he necessary air valve movement to minimize error The airflow setpoint is limited by applicable minimum and maximum flow setpoints Reheat Control There are two types of reheat control hydronic heat and electric heat Reheat is allowed to turn On if the zone temperature is below the heating setpoint Space temperature control can use reheat if the following conditions are all true e The unit is not calibrating Reheat is enabled communicated supply heat control request For local reheat only the fan if present is not being overridden to Off communicated fan override The supply air temperature is less than the configured reheat enable setpoint 5 F 2 78 C and Local heat minimum airflow is used for both local and remote reheat Electric Heat Pulse Width Modulation of Electric Heat One to three stages of Pulse Width Modulation PWM of electric heat are available on single duct units and fan powered units up to three stages are available for PWM heat control Energizing for a portion of a three minute time period modulates the electric heater This allows exact load matching for energy efficient operation and optimum zone temperature control The heating minimum airflow setpoint is enforced during reheat The amount of reheat supplied is dependent on both the degree that the space temperature is below the active heating setpoint and the time that the space temperature has been below the active heating setpoint If
102. ilable data points associated with the category selected Selected Data Displays all data points selected and transferred from the Available Data list box Arrow buttons Use these controls to transfer items back and forth between the Available Data and Selected Data list boxes Save Saves the session logging definition for future reuse Note You must save the configuration before you can start data logging Saving the session log configuration activates the Start session logging button Cancel Cancels session logging setup Start session logging Click to start session logging after you have defined the sampling rate the log file name and location and the data points to be included in the logging Session logging continues until you terminate your connection to the controller and end your Tracer TU session Data Log Setup Tab VAV SVX07A EN Use the Data Log Setup tab to create up to 50 data logs one for each point you want to track Data Logs Drop Down Menu The Data Logs drop down menu allows the user to copy edit or delete 43 Tracer UC400 Controller Operations Copy Use this option to copy an existing data log definition under a different name and then modify it to avoid extra typing Edit Use this option to edit an existing data log definition The Data Log Properties dialog box appears Delete Use this option to delete one or more data logs after you are finished with them Go button
103. ing and cooling The outputs are controlled based on the unit configuration and the required heating capacity At 096 required heating capacity the air valve is at its minimum flow setpoint As the required heating capacity increases the air valve opens above its minimum position At 10096 required heating capacity the air valve opens to its maximum position All units have a modulating air valve The modulating air valve is used to control how much air is flowing through the diffusers and into the space By modulating the volume of air flowing the unit heating capacity is modulated Units may also have local or remote reheat This reheat may be hydronic or electric Reheat is used to maintain the space temperature at the heating setpoint 55 Sequence of Operation 56 Note Heating operation and Reheat are two different entities Air Valve Control in Space Temperature Control Operation Air delivered to the space is controlled with a three wire floating point actuator that modulates the air valve The controller positions the modulating air valve to deliver the desired airflow cooling or heating capacity The desired airflow is called the active flow setpoint The controller positions the modulating air valve to deliver the desired airflow cooling and heating capacity to within 2 of nominal airflow The airflow control algorithm compares the active airflow setpoint with the measured airflow and calculates t
104. inuously energized See operation section for details 3 Tracer SC has the fan output disabled Check overrides to make sure they are not inhibiting fan operation 4 Aflow override exists locking out the fan output Check to make sure Tracer SC or Tracer TU service tool has released fan disable override 5 Ifthe Tracer UC400 controller is calling in the status screen for the Fan to be on and itis then check TRIAC output wiring and relay output e Override damper open Seeiffan cycles on e Check to common Should have 24 if it does not measure the power input to on XFMR 24 input and of the Tracer UC400 controller The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability can be checked with purchasing 24 VAC LED and see if it lights up on call for fan Tracer UC400 controller If LED does not light up replace the Tracer UC400 controller Remove fan wires from the Tracer UC400 controller and apply 24 VAC directly to fan relay wires Fanrelay should energize If it does not energize check wiring If wiring is OK replace fan relay 80 VAV SVX07A EN TRANE Troubleshooting Notice Equipment Damage The Tracer UC400 controller outputs are switched to ground Do not jumper 24 VAC to Binary output TRIAC s because damage will occur 6 After all checks have been completed check motor f
105. ion flow control staged reheat control electric or hot water achieves a 30 minute average discharge air temperature to within 5 F 2 78 C of the discharge air temperature setpoint when the inlet temperature is within the control range Ventilation flow control modulating reheat control hot water only achieves a discharge air temperature to within 5 F 2 78 C of the discharge air temperature setpoint when the inlet temperature is within the control range Air Valve Control 60 Ventilation flow control uses the air valve as a constant volume device The unit is given a constant flow setpoint for air valve control configured ventilation setpoint the air valve only repositions itself in response to changes in inlet static pressure By using pressure independent control for VAV SVX07A EN VAV SVX07A EN e TRANE Sequence of Operation ventilation purposes a constant volume of fresh air can be maintained regardless of small fluctuations in inlet static pressure Ventilation flow control unit can use a Ventilation Setpoint from a BAS system if itis valid If unit is stand alone the ventilation flow control uses one ofthe following two airflow setpoints e f no reheat being used it uses the configured Ventilation Setup Occupied Setpoint e If reheat being used it uses the configured Air Flow Setpoint Minimum Heat Staged Reheat Control Electric and Hot Water The heat outputs of the controller are binary Only discrete le
106. ir balance sequence a By simply turning the thumbwheel to or increasing the setpoint to maximum on display sensors end of range in one direction the controller drives the air valve to the minimum cooling flow setpoint b Turning the thumbwheel to the or decreasing the setpoint to minimum on display sensors end of range in the other direction the controller drives the air valve to the maximum cooling flow setpoint VAV SVX07A EN 11 TRANE VAV Start Up Check Out Procedure This chapter contains information about the following Tracer UC400 Controller Pre Power Check Out Tracer UC400 Controller Power Wiring Communication Wiring Space Temperature Control Wiring e Zone Sensor Wiring Duct Temperature Sensor Wiring Binary Input Wiring e Binary Output Wiring Zone Sensor Check Out Ventilation Flow Control Flow Tracking Control Wireless Zone Sensor Tracer UC400 Controller Pre Power Check Out ZNWARNING 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 12 Check the supply voltage at XFRM Proper pol
107. iver for all models has four LEDs LED1 LED2 LED3 and Figure 32 p 71 shows their locations Figure 32 LED locations on the receiver LED1 LED2 I LED3 2 51 2 ADDRESS n E OY Os POWER Z 8 HEATING SET lt E FAN SYSTEM Teas 95 ZONE GND SIGNAL 5 GND POWER COMM J COMM 4 The sensor for models WTS WZS have four LEDs LED1 LED2 LED3 LED5 The sensor for model WDS has test symbols and error codes that appear on the display All three sensor models have a Test button Figure 10 p 26 shows their locations Figure 33 LED test button and symbol locations on the sensor Test button Diagnostics VAV SVX07A EN LED1 LED2 LED3 LED5 r q 7 23 23 23 Os q 91 SIGNAL 2 Auro e LEDS ADDRESS oS 6 qi BE Y STATUS ji E Test symbols YWSEHESS Error code J1 Q Test button WTZ WZS sensor WDS sensor Note Reading diagnostics can show if the sensor has an is
108. ld result in death or serious injury This chapter contains the following troubleshooting procedures e Troubleshooting Procedures Diagnostics e LED Operation Tracer UC400 Controller Failure Troubleshooting Procedures e Tracer UC400 Controller Communication Loss Procedures e Wired Zone Sensor Failure Troubleshooting Procedures e Wired Zone Setpoint Failure Troubleshooting Procedures e Wireless Zone Sensor Failure Troubleshooting Procedures Airflow Failure Troubleshooting Procedures Supply Discharge Air Temperature Sensor Failure Troubleshooting Procedures Sensor Failure Troubleshooting Procedures VAV Damper Failure Troubleshooting Procedures VAV Series Fan Failure Troubleshooting Procedures VAV Parallel Fan Failure Troubleshooting Procedures Trane Honeywell Proportional Valve Check Out Procedures Troubleshooting Procedures Marquee Status LED will give you an indication if a diagnostic is present If diagnostic is present use Tracer TU service tool to access Tracer UC400 controller diagnostics See Table 10 p 64 for diagnostics After diagnostics have been assessed find correct procedures for troubleshooting issue Note The Tracer UC400 controller binary and analog outputs can be exercised by Tracer TU service tool See status and programming sections for detail Note Each binary output has a yellow LED associated to it that lights up when TRIAC output has been exercised Diagnostic
109. lections Units Number Format Use this drop down list to choose from available number formats for data display Default Units Use these option buttons to indicate which measurement system you wish to use I P inches and pounds or SI Standard International Units VAV SVX07A EN VAV SVX07A EN e TRANE Tracer UC400 Controller Operations Modify Default Units Use these drop down lists to change the default units of measure displayed for various device inputs or capabilities such as Temperature Gaseous Pressure Fluid Pressure Cooling Capacity and so on To set the controller units of measure 6 Click the Units expanding box Select your preferred Number Format from the Number Format drop down list Select your preferred units of measure by clicking either the I P Inches and Pounds SI Standard International Units option button in the Default Units group box Check the Modify Default Units check box if you wantto change the default units of measure displayed for various device inputs or capabilities such as Temperature Gaseous Pressure Fluid Pressure Cooling Capacity and so on Modify any of the default units by selecting the appropriate option from the drop down lists in the Modify Default Units group box Click Save Communication Type Displays the protocol that controllers use to communicate with other controllers on the link The controller uses a different protocol to communicate with Tracer TU
110. lid red for 5 seconds No light 25 battery life left Batteries should be replaced Batteries life expired or not installed properly or sensor is defective None Blinking red 1 blink pattern repeated 5 times Cycle repeats every 15 minutes Approximately 14 days of operation remain before the battery is too weak to power the sensor a Blink pattern is On for 1 4 s Off for 3 4 s with 2 s Off between repetitions 72 VAV SVX07A EN TRANE Troubleshooting e Model WDS Battery life Testing Battery Status Table 16 p 73 and signal strength Testing Signal Strength Table 17 p 73 are indicated Table 16 Battery status Battery symbol on model WDS sensor display User action Battery test symbol Indicates Press Test button v Full battery power 50 battery life left 25 battery life left Replace batteries Flashing symbol indicates that approximately 14 days of operation remain before the battery is too weak to power the sensor Table 17 Observing signal strength on the sensor User action LED state WTS WZS sensors Symbol WDS sensor display Indicates None LED1 Off No Test symbols Normal state LED2 Off appear No Test button press LED3 Off LED1 Off Associated no communication with receiver LED2 Off Associated but no signal from the receiver after pressing Test button LED3 Off Press Test button on th
111. mation system that supports BACnet VAV SVX07A EN VAV SVX07A EN e TRANE General Information Flow Tracking The Tracer UC400 controller is designed with the ability to be applied in flow tracking applications This allows the controller to be paired with one of its peers to mirror the flow of the lead unit with or without an offset positive or negative static pressure as desired Ventilation Flow Control with Tempering The Tracer UC400 controller is designed with the ability to be applied in ventilation flow control applications These applications pair a fresh air unit with ventilation boxes to provide fresh tempered air to a zone This feature also includes a freeze protection sequence to protect the hot water reheat coil from low supply air temperatures Auto commissioning Sequence The TracerUC400 controller is designed with an auto commissioning sequence With a discharge air temperature sensor this feature exercises the air valve fan and heat in the box and records the temperature before and after the action This allows the installer to more easily verify the operation of the unit and commission by exception An auto commissioning report can be generated with Tracer TU service tool Automatic Calibration The Tracer UC400 controller is designed to automatically calibrate the flow transducer each time the unit transitions to unoccupied This eliminates the need to initiate schedule calibration for most installations
112. mined during the air balancing of system A testing adjusting and balancing professional will use the Tracer TU service tool to calculate this value and balance the VAV box Normally you should not need to change this value here For Trane units the nominal airflow and unit flow gain are based on unit size Generic units just keep the unit flow gain to the default of 1 0 Air flow Measurement Offset The flow offset is used to calibrate the value reported by the flow sensor so that the reported flow matches the actual flow The flow offset is determined during the air balancing process A testing adjusting and balancing professional will use the Tracer TU service tool to calculate this value and balance the VAV box Normally you should not need to change this value here Note The flow offset is calculated only for two point balancing which requires reading both the maximum and minimum airflows during balancing Two point balancing ensure greater accuracy over the entire range of air valve operation Only controllers that support the Flow Measurement Offset network variable such as the Tracer UC400 controller can use two point balancing 49 Tracer UC400 Controller Operations 50 AirFlow Gain The airflow gain is used to calibrate the value reported by the flow sensor so that the reported airflow matches the actual airflow The flow gain is determined during the air balancing process A testing adjusting and balan
113. mperature Control Single Duct Fan Powered Units Space Temperature Single Duct Units VAV SVX07A EN Space Temperature Control Mode Space temperature control STC is one of three supported control algorithms Space temperature control requires a valid space temperature If there is no valid space temperature communicated or local the space temperature control algorithm does not run the unit either shuts down or goes to construction mode The Tracer UC400 controllers use the active space temperature to maintain the space temperature at the active space cooling setpoint or the active space heating setpoint The controller heat cool mode is determined by either a communicated request or by the controller itself when the heat cool mode is auto When the heat cool mode is auto the controller compares the supply airtemperature with the configured auto changeover setpointto determine ifthe supply air is hot or cold This is called autochangeover This determination may differ from the reported heat cool mode which matches the zone demand The control compares the active space setpoint and the active space temperature and calculates the desired capacity The control positions the modulating air valve to deliver the desired airflow cooling or heating capacity Cooling Operation Under space temperature control during the cooling mode communicated heat cool mode is cool the controller attempts to maintain the active space temperature at
114. mum Flow Position and allow sufficient time for the damper to fully open 7 Enter the Current Discharge Airflow value in the MAX CFM field blue under Tracer UC400 controller Measurement on the spreadsheet 8 Measure the actual airflow with the flow hood Add the totals if more than one diffuser is present 9 Record them in the MAX CFM field under Flow Hood Measurement 10 Select the Drive to Minimum Flow Position radio button and repeat the process for Minimum CFM recording both the Tracer UC400 controller measurement and the flow hood measurement on the spreadsheet 11 The Air Flow Measurement Offset and Air Flow Gain values change dynamically as each value is entered 12 When the procedures for maximum and minimum flow are complete enter the Air Flow Measurement Offset and Air Flow Gain values in the corresponding fields on the Commissioning tab screen of the Tracer TU service tool The Tracer UC400 controller reads the values and adjusts calibration to match the Maximum and Minimum airflow values Retain a copy of the spreadsheet as a record of the air balancing performed Configuration Tab 52 Application Equipment Type This allows for selection between three operational programs The three programs are Space Temperature Ventilation Flow and Flow Tracking Fan Settings Fan Configuration Fan Present This dialog box should be checked if the unit has a fan Tracer TU service tool automatically chan
115. nicated occupancy sensor not valid is occupied the controller uses the local occupancy binary input to switch between the occupied and occupied standby modes When the controller is in the occupied standby mode it uses occupied standby setpoints and runs in Occupied temperature control Ventilation flow control or space temperature control and e Flow tracking control Occupied Bypass Mode Occupied bypass mode is used for timed overrides For example if the controller is in unoccupied mode or occupied standby mode pressing the zone sensor ON button places the controller in occupied bypass mode for 120 minutes default configured occupied bypass time or until someone presses the zone sensor CANCEL button The controller can be placed in occupied bypass mode by either communicating an occupancy mode request of bypass mode communicated occupancy override to the controller or by using the zone sensor timed override ON button The occupied bypass mode and the occupied mode operate similarly When the controller is in the unoccupied mode pressing the zone sensor ON button places the controller in the occupied bypass mode for the duration of the configured occupied bypass time When the controller is in the occupied standby mode pressing the zone sensor ON button places the controller in the occupied bypass mode for the duration of the configured occupied bypass time 54 VAV SVX07A EN TRANE Sequence of Operation Space Te
116. njury In the event that the Tracer UC400 controller reports an incorrect or failed CO2 sensor input temperature properly inspect the following 1 Check that the CO point is not out of service Checking the config will not be necessary The point will exist be locked from the factory 2 Check jumper position on sensor Figure 36 Jumper position 24 GND OUT OUTPUT d 2 SELECTION ey 62 0 10 0107 JUMPERS mmm 20 0 10 0 20 4 20mA SELECTED Need to be set up as 0 10VDC Check voltage between UI2 and with the sensor connected Should be between 1 10VDC If it is not check incoming power Check voltage input to CO2 sensor with voltmeter Needs to be between 20 to 26 VAC nominal 24 VAC 3 If you measure the proper voltage at incoming power and you have no VDC output at UI2 and gt gt replace sensor If no voltage check up stream of controller to see were voltage has been interrupted See Figure 37 p 86 to Figure 44 p 93 for correct unit diagrams VAV SVX07A EN TRANE Troubleshooting VAV Damper Failure Troubleshooting Procedures VAV SVX07A EN ZAWARNING Hazardous Service Procedures The maintenance and troubleshooting procedures recommended in this section of the manual could result in exposure to electrical mechanical o
117. nstances where you are experiencing incorrect flow readings or ifthe unit reverts to pressure dependent mode despite being above 5 and below 110 of cataloged flow and performing a normal calibration and does not correct the problem Steps for Calibration Connect to the Tracer UC400 controller with Tracer TU service tool 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 Select the calibrate unit option button 75 Troubleshooting Tracer TU service tool will indicate that calibration is taking place by a calibration percent complete indicator 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 The controller is accurate in reading flow from 596 to 110 of cataloged CFM Release the box to auto and perform any necessary balancing work See Tracer TU Help for balancing details 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 Check with a magnehelic gauge and compare with the delta pressure DP chart located on the VAV box Check the tubing for reversal and or leaks Check the flow ring for plugged holes Blow out with compressed air if necessary Figure 35 Sens
118. o local CO2 sensor input Uses only a communicated value Local CO2 sensor input is available Single star initiates cool minimum airflow override 2 Single star initiates cool minimum airflow override 2 Single star initiates maximum flow override after pressing the ON button Override is held until you move the thumbwheel Double star initiates cool maximum airflow override b Double star initiates cool maximum airflow override b Double star initiates unoccupied override after pressing the ON button Override is held until you move the thumbwheel Does not support VariTrac central control panel CCP2 and Does not support VariTrac central control panel CCP2 and CCP3 Does support VariTrac CCP2 and CCP3 Supports ventilation flow control Supports ventilation flow control Does not support ventilation flow control Supports flow tracking control Supports flow tracking control Does not support flow tracking control Supports enhanced ventilation control sequences Supports enhanced ventilation control sequences Does not support enhanced ventilation control sequences Supports auto commissioning sequence Supports auto commissioning sequence Does not support auto commissioning sequence Does not support zone sensor air balance sequence Supports zone sensor air balance sequence Does not support zone sensor a
119. of total capacity PWM 1 stage 100 2 stages 50 each stages Output one stage 100 two output stages 50 each three stages 33 33 each Total capacity is M limited by communicated supply Total capacity is limited by communicated supply heat control heat control Fan Not Parallel fan Local thermostatic Local thermostatic Local thermostatic On Off applicable On Zt lt HSP On A lt HSP 1 F On zi HSP 2 F electric Off Zt 0 5 F 0 569 1 11 C 1 to 3 38 C Off Zt gt HSP 0 5 F Off Zt HSP 1 5 F Stages 0 28 C 0 28 C 0 83 C Each stage represents an equal percentage of total capacity Each stage represents an equal percentage of total capacity Total capacity is limited by Total capacity is limited by communicated supply heat control communicated supply heat control Fan Not Parallel fan Local thermostatic 2 Not applicable On Off hot lapplicable On Zt HSP water 1 1 to 3 1 0 5 F Off Zt gt HSP 0 5 F stages 0 0 28 C Total capacity is limited by communicated supply heat Total capacity is limited by Not applicable control communicated supply heat control Fan Not Parallel fan Local PI capacity loop Local PI capacity loop Modulating applicable Modulating valve capacity Total Modulating valve capacity Total capacity hot capacity Valve drive incrementally open closed water Valve drive incrementally open Total capa
120. om the sensor it is associated with Receiver has no power Open Open Thermistor in sensor has failed to Normal value either open or close Setpoint potentiometer has failed to Normal value Open either open or close When the test is complete reset the receiver address to its previous setting VAV SVX07A EN TRANE Troubleshooting Press the Test button S5 on the sensor to force re association Confirm association and communication by noting LED1 LED2 and LED3 as described in Signal Quality Test Pressing the Test button S5 on the sensor initiates a signal quality test LED1 LED2 and LED3 respond on the receiver by indicating excellent marginal or poor signal quality See Table 17 p 73 The Sensor LED s or LCD can be observed and verified using Table 17 p 73 If Sensor and receiver still do not operate properly replace bad components If unit passes tests Check Tracer UC400 controller operation 3 Defective Tracer UC400 controller Disconnect the receiver sensor wires on the Tracer UC400 controller on terminals and gt and measure the VDC It should be If 5VDC is not present check incoming power to the Tracer UC400 controller on XFMR 24 VAC input and Voltage should measure 24 10 If you measure the proper voltage at XFMR 24 input and and no voltage at replace the Tracer UC400 controller Disconnect the receiver setpoint wires on the Tracer
121. or signal vs airflow delivery 5 Flow Sensor In w g o zs 0 01 10 100 1 000 10 000 C fm 3 Wrong unit size downloaded into the Tracer UC400 controller setup screen See programming section for menu details Verify that the actual unit size matches the unit s nameplate 4 Poorinlet configuration Trane recommends 1 2 duct diameters of straight duct before the inlet of the box a 12 inch box should have 18 inches of straight run duct before the inlet 5 To determine whether or not the transducer has failed perform the following steps Check the 24 volts AC supply at 24 input and on the Tracer UC400 controller Voltage should be between 20 volts AC and 28 volts AC Read the input voltage to the transducer from the Tracer UC400 controller between the green and red wires on P1 of the Tracer UC400 controller The voltage should be between 76 VAV SVX07A EN TRANE Troubleshooting 4 50 volts DC and 5 50 volts DC 5 volts DC cataloged If voltage not available replace the Tracer UC400 controller Remove the high and low tubes from the transducer to simulate no flow Read the transducer output voltage on P1 of the Tracer UC400 controller 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 ofthe transducer indicating zero flow If voltag
122. pancy The binary inputs can be configured with the Tracer TU service tool for occupancy or other use The input associates 0 VAC with open contacts and 24 VAC with closed contacts It is activated by a dry contact switch closure e Must 18 to 22 AWG e Maximum wire length 1 000 ft 300 m e Refer to Figure 4 p 18 and Figure 5 p 19 and the sensor instructions for terminal connections Occupancy Binary Input The occupancy binary input can be configured as NO or NC Occupied is the normal state It is also the initial state at power up and after a reset Unoccupied is the other state If the binary input is configured as generic the default occupancy mode is occupied Binary Output Wiring Binary outputs that are required for unit operation are factory wired and commissioned The Tracer UC400 controller does have three extra binary outputs BO2 BO4 available for other use To program the three extra outputs on the Tracer UC400 controller see BAS SVX20 EN Tracer UC400 Programmable Controller Installation Operation and Maintenance Ventilation Flow control See Duct Temperature Sensor wiring described on Space Temperature Control Wiring Note If heat is installed Discharge Air sensor must be located at the discharge of the unit Flow Tracking Control Two controllers are used on to separate VAV units for flow tracking One is a space temperature controller and the other is a flow tracking controller The flow tracking uni
123. r other potential safety hazards Always refer to the safety warnings provided throughout this manual concerning these procedures When possible disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing Follow proper lockout tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided could result in death or serious injury In the event that the air valve is not modulating properly inspect the following 1 Tracer SC or Tracer TU service tool has enabled an override function in the Tracer UC400 controller The overrides are Open Closed Min or Max Disable all overrides Note See programming and operation chapter to be able to release override with Tracer TU service tool The Tracer UC400 controller is going through a recalibrate reset command This is shown in the diagnostic list in Tracer TU service tool Wait for calibration to finish 2 Zone temperature is greater than the heat setpoint or less than the cool setpoint Change the heat and or cool setpoint 3 Actuator not driving full drive time Drive time in advanced configuration not set at 90 seconds on current Varit
124. r the controller is operating as a network controller or a stand alone controller Table 9 Unoccupied VFC control freeze protection for hot water reheat Controller Air valve Hot water valve operation position Condition position Networked and Communicated supply air temperature greater than configured outdoor air low limit Closed valid icated Closed no communicare flow Communicated supply air temperature less than or equal to configured outdoor air low limit Open to 100 supply air freeze protection active diagnostic with 10 F hysteresis temperature Stand alone coil Discharge air temperature greater than configured outdoor air low limit Closed temperature sensed at Closed no flow Discharge air temperature less than or equal to configured outdoor air low limit freeze Open to 10096 discharge air protection active diagnostic with 109F hysteresis temperature 2 a Place the discharge temperature sensor in close proximity to the hot water coil discharge The sensor effectively reports coil temperature when there is no airflow through the coil Therefore the coil can be freeze protected by the discharge air temperature sensor Flow Tracking Flow tracking control FTC is one of three supported control algorithms Two Tracer UC400 controllers work together to provide flow tracking control See Figure 31 p 63 The space temperature controller outputs the airflow reported airflow
125. rane units Adjust to correct damper travel time using Tracer TU service tool See the Tracer UC400 Operation section e Damper actuator loose on shaft Tighten damper actuator set screw to damper shaft e Measure the power input to XFMR 24 VAC input and on the Tracer UC400 controller The supply voltage should be 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 37 p 86 to Figure 44 p 93 for correct unit diagrams 4 Actuator motor has failed e Check voltage at B on TRIAC outputs to Common you should have 24 VAC If 24 is not present check incoming power to the Tracer UC400 controller on XFMR 24 VAC input and Voltage should measure 24 10 If you measure the proper voltage at XFMR 24 VAC input and and no voltage at B and Common replace the Tracer UC400 controller Check motor by applying 24 VAC directly to common blue and jumper open black wire to a ground to drive damper open 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 79 Troubleshooting Damper should drive closed Note The Tracer UC400 controller outputs are switched to ground Do not jump
126. re 27 Status button B The Status button is the first utility button that can be selected and has six section tabs available for the selected device and utility Unit Summary Tab The Tracer TU service tool will launch and display the status of the Tracer UC400 controller VAV SVX07A EN The left hand side contains the device tree listing all of the devices on the link To access another controller on the link click on the device on the tree The right hand side of the screen contains four buttons for the Status Data Logs Trends Controller Settings and Equipment These are known as unitary buttons and they are the types of functions There will be tabs across the top of the screen and they will change depending upon the unitary button being viewed The body of the tab will contain fields logically grouped 37 Tracer UC400 Controller Operations 38 Connected to Describes the type of device being communicated to via Tracer TU service tool It also indicates the general program that has been placed in controller and if communication is up The two states for communication are Configured On line or Not Communicating Alert Boxes Points Out of Service Indicates the number of points that are currently set to Out of Service Active Alarms Indicates the number of active alarms requiring your attention When active alarms are present the information icon displays the color of the highest priority
127. rive the air valve closed to the stroke time plus 20 Initialize the air valve position as closed when the air seconds valve is over driven Flow sensor Subtract the zero flow reading from all subsequent Record the flow reading when the air valve is fully closed readings Modulating hot water reheat Drive the water valve closed for the stroke time plus 20 Initialize the water valve position as closed when the seconds water valve is over driven Fan Enabled Enabled Electric or On Off hot water Disabled Enabled Occupancy Modes Occupied Mode VAV SVX07A EN TGP2 programs have four valid occupancy modes Occupied Mode Unoccupied Mode Occupied Standby Mode and Occupied Bypass Mode Occupied mode is the normal default operating mode for occupied spaces or daytime operation When the controller is in the occupied mode it uses occupied setpoints and runs in e Occupied space temperature control Ventilation flow control has no occupancy and e Flow tracking control has no occupancy 53 Sequence of Operation Unoccupied Mode Unoccupied mode also known as night setback is the normal operating mode for unoccupied spaces or nighttime operation Unoccupied setpoints enable or disable occupied space temperature control When the controller is in the unoccupied mode and configured for space temperature control the controller attempts to keep the space temperature between the a
128. roller setup screen e Unit needs to be configured as two position hot water 3 Tracer SC has the heat output disabled Check overrides to make sure they are not inhibiting heat operation 4 Heat relays have failed fthe Tracer UC400 controller is calling in the status screen for the valve to be open and it is not then check the Tracer UC400 controller TRIAC output wiring and relay output e Ifthe Tracer UC400 controller is calling in the status screen and LED is on for binary output to openthe valve andtriacis not closed then check the Tracer UC400 controller TRIAC output wiring and relay output Check binary outputs See Figure 37 p 86 and Figure 38 p 87 for correct outputs Should have 24 if it does not measure the power input to XFMR 24 VAC input and of the Tracer UC400 controller The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability Notice Equipment Damage The Tracer UC400 controller outputs are switched to ground Do not jumper 24 VAC to binary output TRIAC s because damage will occur Heat TRIAC s can be checked with purchasing 24 VAC LED and see if it lights up on call for heat output to be open by the Tracer UC400 controller If LED does not light up replace the Tracer UC400 controller 85 Wiring Diagrams Wiring Diagrams Figure 37 Wiring diagram for single duct unit that is eith
129. s Table 14 Diagnostics on the receiver LED1 LED2 LED3 LED1 LED2 LED3 LED1 LED2 LED3 LED state Off Off 1 blink pattern repeated continuously Off Off 2 blink pattern repeated continuously Off Off 3 blink pattern repeated continuously a Blink pattern is On for 1 4 s Off for 1 4 s with 2 s Off between repetitions Table 15 Battery status LED5 on model WTS and WZS sensors 1 wireless zone sensor system failure 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 bot properly set defective receiver Observe LED5 on the receiver LED5 will be On solid green whenever the receiver is powered Make sure the receiver is properly grounded Both the black wire GND SIGNAL and the yellow wire GND POWER must be grounded Press the Test button 55 the sensor Models WTS WZS LED5 should turn On solid green indicating proper battery strength LED1 LED2 and LEDS will indicate signal strength See Table 17 p 73 User action LED state WTS WZS Indicates Press Test button Solid green for 5 seconds Battery is adequate for proper operation So
130. s The diagnostic reports informational modes items that are not in the unit s normal operation See Table 10 p 64 for diagnostic Table 10 Controller diagnostics Diagnostic Air valve Fan Reheat Discharge air temperature failure space Normal Normal Normal temperature control Discharge air temperature failure ventilation flow control without reheat Normal 64 VAV SVX07A EN TRANE Troubleshooting Table 10 Controller diagnostics continued Diagnostic Air valve Fan Reheat Discharge air temperature failure ventilation Closed Do n t care off flow control with reheat Discharge air temperature failure flow tracking Normal Do noteare Do not care control Local electric heat is Off local Low airflow space temperature control Normal Normal hydronic and all remote heat is normal Local electric heat is Off local Low airflow ventilation flow control Normal Do not care hydronic is normal remote is Don t Care Supply air temperature failure space Local electric heat is local Normal Normal hydronic and all remote heat is temperature control normal Supply air temperature failure ventilation flow Normal Do nat are Normal control Supply air temperature failure flow tracking Normal D mot eare Donor care control Space temperature fail space temperature Occupied cool minimum flow Series fan enabled Off
131. s tab in layout except now we have a screen design around editing Note To create new points to utilize the spare I O and or software only points see the Tracer UC 400 programmable controller IOM Important The following field descriptions apply to the Inputs Outputs and Values grid column areas of the screen Actions drop down menu Copy Use this option to copy an existing point configuration under a different name and then modify it to avoid extra typing Edit Use this option to edit an existing point configuration The appropriate Properties dialog box appears Delete Use this option to delete one or more point configurations Add New button Clickthis button to configure a new point The appropriate Properties dialog box appears 45 Tracer UC400 Controller Operations Grid Columns Index Displays the sequence number assigned to the point Name Displays the name of the point Reference Identifies the source or target of information supplied to or from the point Locked Indicates if the point is locked not modifiable State Displays the current state of the point Point states are Normal Out of Service Fault and Alarm Save Saves the points to the controller Save to File Saves the points listed on this screen to a new or existing file on your hard drive Cancel Returns the screen to its condition at the last save To edit an existing point Use the Analog Binary and Multistate ta
132. scription Displays a short description of what occurred Acknowledgement Required Indicates whether or not the alarm has to be acknowledged at the parent Tracer SC level Controller Status Tab BAS Communication Displays the status of the communications network Program The Tracer UC400 controller will have up to three VAV configurations downloaded and defined in the factory as part of the factory commissioning process The three programs will be a Base program for damper control Fan and Reheat control When looking at programming section of Controller Status tab operation of these programs can be monitored Grid Columns Padlock icon Indicates that the program is locked Index Displays the sequence number assigned to the point Name Displays the name of the program Status Displays the current operating status such as Idle or running Run Type Indicates how execution is controlled Scheduled or Triggered Interval Displays the time between program starts for example 10 minutes Latency Displays the time it takes for the program to run Error Displays the operational state whether Normal or Error Terminated Controller Lists identifying and status information for the controller including Product Name Product Version Hardware Part Number Hardware Serial Number Application Part Number Application Version Application Build Number Boot Part Number Boot Version Boot Build Unit Sales Order Number and Model Num
133. stalled by qualified personnel ONLY Under NO circumstances should an unqualified person service install it Servicing installing this equipment is a job requiring specific knowledge and MUST be left to a professional It involves working with hazardous components that are potentially life threatening if not handled properly Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury ZNWARNING Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring Improperly installed and grounded field wiring poses FIRE amp ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described NEC and your local state electrical codes field wiring MUST be performed by qualified personnel Failure to follow these requirements could result in death or serious injury Overview of Manual Note One copy of this document ships inside the control panel of each unit 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 It is important that periodic maintenance be performed to help assure trouble free operation Sho
134. sue or it has not been setup properly Use this information as a starting point LED1 LED2 and LED3 located on the sensor of models WTS and WZS respond to diagnostics by exhibiting specific blinking patterns View their response by pressing the Test button See Table 13 p 72 Error codes appear on the display of the model WDS sensor when diagnostics occur See Table 13 p 72 LED1 LED2 and LED3 located on the receiver of all models respond to diagnostics by exhibiting specific blinking patterns They respond independently of any user action See Table 14 p 72 71 Troubleshooting Table 13 Diagnostics on the sensor LED state when Test button is pressed Error code WDS WTS WZS sensors sensor display Indicates Sensor failure N A E5 E7 Replace sensor CERES peal Disassociated SEDE Off Sensor is not associated with a receiver LED3 1 blink pattern repeated 3 times Off Address set to 000 LEDS Off E Address not set to between 001 999 LED3 2 blink pattern repeated 3 times LIEBE OE Software error RED LED3 3 blink pattern repeated 3 times p LED1 Off Input voltage too high LED2 Off 4 No RF transmission is permitted with an input battery voltage LED3 4 blink pattern repeated 3 times greater than 3 9V a Blink pattern is On for 1 4s Off for 1 4s with 2s OPff between repetition
135. sult in death or serious injury In the event that the heat outputs are not energizing properly inspect the following 1 Zone temperature is at or above the heating setpoint Increase the Tracer UC400 controller heating setpoint 2 Verify the output configuration in the Tracer UC400 controller setup screen e Unit needs to be configured as 3 stage electric heat 3 Tracer SC 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 e Increase the airflow or lower the minimum heating flow 5 Heat relays have failed e Ifthe Tracer UC400 controller is calling in the status screen for the electric heat and the LED is on for correct binary output s for stage s of heat to be on and itis not on then check the Tracer UC400 controller TRIAC output wiring and relay output Check correct binary output to See Figure 37 p 86 should have 24 if it does not measure the power input to on XFMR 24 VAC input and ofthe Tracer UC400 controller The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability Heat TRIAC s can be checked with purchasing a 24 VAC LED and see if it lights up on call for heat stage UC400 If LED does not light up replace Tracer UC400 controller Notice Equipment Damage The
136. t does have inputs or output connected to the controller VAV SVX07A EN 21 VAV Start Up Check Out Procedure Wireless Zone Sensor The Trane Wireless Zone Sensor set includes a sensor and a receiver that work together to provide the same functions as the equivalent Trane wired sensor such as the standard 10k O 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 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 22 See Figure 7 p 22 and Figure 8 p 23 for dimensions of the Wireless Zone Sensor set Figure 7 Outside dimensions for sensor 72420904881 08 2 75 cm 2 90 in 7 35 cm zi m uag 4 78 in 12 14 cm H Note The dimensions are the 2 62 in 6 65 cm same for both the sensor and the receiver VAV SVX07A EN TRANE VA
137. the recommended safety warnings provided could result in death or serious injury In the event that the Tracer UC400 controller reports an incorrect or failed discharge or supply air temperature properly inspect the following 1 Make sure Tracer UC400 controller has been configured for the input and the point has not been set out of service 2 Discharge or supply air temperature is higher or lower than what the Tracer UC400 controller reads e Check the location and installation of the sensor Change the calibration factor in the Tracer UC400 controller setup screens Note If sensor is off more than 2 degrees continue to number 3 3 Sensor wired incorrectly Check wiring for the correct connections See Chapter 2 for further details on discharge or supply air sensor wiring 4 Defective sensor Disconnect the sensor terminal plug from the Tracer UC400 controller and using ohmmeter measure the resistance across the sensor wires Compare the resistance to temperature using Table 12 p 69 The resistance measured should correspond to a temperature within 2 degrees near those measured with an accurate temperature measuring device If not the sensor needs to be replaced 5 Defective wiring or Tracer UC400 controller See ifthe Tracer UC400 controller is outputting 5VDC This can be done by disconnecting the wires on the Tracer UC400 controller on terminals Al4 and gt for discharge air temperature 77
138. the air handling unit based on the CO concentration in or more spaces Ventilation Flexibility Ventilation can be managed in the following ways e Fixed occupancy ventilation setpoint e Scheduled or otherwise calculated ventilation setpoint Occupancy sensor to switch between normal and reduced ventilation 2 sensor for demand controlled ventilation 10 VAV SVX07A EN TRANE General Information Temperature Statistics As a part of the standard application both the VAS and Area applications calculate the minimum space temperature and source maximum space temperature and source and the average space temperature Tracer UC400 Controller Compatibility The Tracer UC400 controller integrates with other BACnet systems and devices using BACnet MS TP The Tracer UC400 controller provides standard BACnet objects data points that can be read by and or written to by other systems Note See BACnet Integration Guide BAS SVP01 EN for more information on the Tracer UC400 controller interface to non Trane systems Note BACnet is the Building Automation and Control Network BACnet and ANSI ASHRAE Standard 135 2004 protocol Table 3 Tracer UC400 Tracer VV550 and VAV 4 2 controller comparisons Tracer UC400 VAV Tracer VV550 VV551 4 2 Supports BACnet Supports LonTalk Comm5 Supports only Comm4 or Comm3 VariTrac or VariTrane Local CO2 sensor input is available N
139. the screen and they are defined from the factory To expand the box and view its contents click the arrow icon on the left side of the box header in each category View Details dialog boxes may be accessed by clicking on the details buttons located at the end of each line item Note For field use of spare analog points see BAS SVX20 EN 39 Tracer UC400 Controller Operations Multistate Tab Alarms Tab 40 Grid Columns Index Displays the sequence number assigned to the point Name Displays the name of the point Value Displays the current or assigned value of the point Units Displays the units of measure in which the point is expressed State Displays the state ofthe point Point states are Normal Out of Service Fault Locked and Alarm Control Click to bring up the Override Request dialog box on which you can change the state of the point Details Accesses the View Details Binary dialog box that contains information about each point including its reference priority owner control time remaining for the current priority level or state feedback reference feedback value change of state count and number of starts Use the Multistate tab to view the multistate data points grouped under inputs outputs and values To expand the box and view its contents click the arrow icon on the left side of the box header in each category Grid Columns Index Displays the sequence number assigne
140. tic Off Zt gt HSP 0 5 F 0 56 C On Zt lt HSP 2 F 0 28 C Off Zt gt HSP 0 5 F Off Zt gt HSP 1 5 F 0 28 Each stage represents an equal percentage of total capacity Total capacity is limited by communicated supply heat control VAV SVX07A EN 57 Sequence of Operation Table 6 Local heat only with no fan present continued Configuration Method of control Local Remote Stage 1 Stage2 Stage 3 Local thermostatic 4 Not applicable On Off hot Not applicable On zt lt HSP Not applicable water Off Zt gt 0 5 F 1 stage 0 289 Total capacity is limited by communicated supply heat control Not applicable Not applicable Modulating hot water Not applicable Local PI capacity loop Modulating valve capacity Total capacity Not applicable Valve drive incrementally open closed Total capacity limited by communicated supply heat control Note Abbreviations Zt Zone Temperature HSP Heating setpoint Table 7 Local heat only with parallel fan present Configuration Method of control Local Remote Fan Stage 1 Stage 2 Stage 3 Fen D Parallel fan Not applicable Not applicable Not applicable Fan Not Parallel fan Local PI capacity loop Local PI capacity loop PWM electric applicable Each stage represents an equal stage represents an equal percent of total capacity 1 to 3 percentage
141. ting Actuator Failure e Ifthe actuator has stopped moving to the closed position when commanded to and there is no play in the lever the actuator has failed 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 The actuator fault is intermittent and the actuator may operate again when removed from the valve or if tapped with a tool while still on the valve Note Actuator indicator on the side ofthe actuator should be positioned at the top of the actuator when valve is closed Two Position Hot Water Failure Troubleshooting Procedure VAV SVX07A EN Check binary outputs WARNING 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 In the event that the heat outputs are not energizing properly inspect the following 1 Zone temperature is at or above the heating setpoint e Increase the Tracer UC400 controller heating setpoint 2 Verify the output configuration in the Tracer UC400 cont
142. ting point actuator technology It is the same operation for single duct units as it is for fan powered units The heating minimum airflow setpoint is enforced during reheat The water valve opens as space temperature drops below the heating setpoint A separate reheat proportional plus integral control loop from that controlling airflow into the room is enforced Water valve position is dependent on the degree that the space temperature is below the active heating setpoint and the time that the space temperature has been below the active heating setpoint An additional on off remote heat output is available and energized when the proportional valve is driven 100 open and de energized when the proportional valve reaches 50 open When reheat is de energized the cooling minimum airflow setpoint is activated See Table 6 p 57 for single duct reheat operation and Table 7 p 58 for fan powered reheat operation Table 6 Local heat only with no fan present Configuration Method of control Local Remote Stage 1 Stage2 Stage 3 PWM electric Not applicable 1 to 3 stages 1 to stages Local PI capacity loop Each stage represents an equal percentage of total capacity PWM Output one stage 100 two stages 50 each three stages 33 33 each Total capacity is limited by communicated supply heat control Local thermostatic local thermostatic On Off electric Not applicable On Zt lt HSP On Zt lt HSP 1 F Local thermosta
143. trocution and Fire Hazards with Improperly Installed and Grounded Field Wiring Improperly installed and grounded field wiring poses FIRE amp ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described in the National Electrical Codes NEC and your local state electrical codes field wiring MUST be performed by qualified personnel Failure to follow these requirements could result in death or serious injury NOTICE Use Copper Conductors Only Unit terminals are not designed to accept other types of conductors Failure to use copper conductors could result in equipment damage Use at a minimum 16 AWG for power wiring and connect to terminal XFRM 24 and gt The 24 VAC is required to power the Tracer UC400 controller and has an acceptable voltage tolerance of 19 to 30 VAC Refer to Figure 4 p 18 and Figure 5 p 19 for the Tracer UC400 controller terminal locations Replace the control box cover after field wiring to prevent any electromagnetic interference Note A dedicated 24 VAC 75VA NEC class 2 transformer is recommended to power the Tracer UC400 controller When powering multiple controllers from one transformer polarity must be maintained Terminal 24 VAC is designated positive and terminal is negative to the unit casing ground The power consumption for cooling only Series F Models VariTrac and VariTrane is 28 VA To determine the tot
144. uee LED Shows solid green when the Tracer UC400 controller is powered and operating normally Shows solid red when the Tracer UC400 controller is powered but represents low power or a malfunction If marquee LED is solid red check incoming power Measure the power input to Tracer UC400 controller on XFMR 24 VAC input and The supply voltage should be between 19 and 30 VAC 24 VAC cataloged However voltages at either extreme may result in system instability e f no voltage check up stream of controller to see were voltage has been interrupted See complete wiring diagrams Figure 37 p 86 to Figure 44 p 93 Check that the Tracer UC400 controller is addressed correctly e Each Tracer UC400 controller on the BACnet link must have a unique rotary switch setting otherwise communication problems will occur There are three rotary switches on the front of the Tracer UC400 controller Use these switches to define a three digit address when the Tracer UC400 controller is installed in a BACnet system for example 107 120 and so on whether with other Trane BACnet controls or controls from another vendor This three digit rotary switch setting is used as both the BACnet MAC address and the BACnet Device ID Note Valid addresses are 001 to 120 e Verify the rotary switches on each Tracer UC400 controller is not duplicated on communication link 67 Troubleshooting 3 Check for alarms or diagnostics with
145. uld equipment failure occur contact a qualified service organization with qualified experienced HVAC technicians to properly diagnose and repair this equipment 2010 Trane All rights reserved VAV SVX07A EN Table of Contents VAV SVX07A EN General Information 5 Tracer UC400 BACnet Unit 5 Shipping amp Storage 6 Specifications 6 Tracer UC400 Controller Features 8 VAV Start Up Check Out Procedure 12 Tracer UC400 Controller Pre Power 12 Tracer UC400 Controller Power 13 LED Description and Behavior 14 Communication Wiring 1 15 Space Temperature Control 0 17 Ventilation Flow control 21 Flow Tracking Control 21 Wireless Zone Sensor 22 Tracer UC400 Controller Operations 36 Connecting with the Tracer TU Service Tool 36 Status B tton
146. unications module Installing additional sensors with the communications module will provide added convenience for the service technician There is no limitation on the number of stubs that can be wired from the Tracer UC400 controller Polarity must be maintained and the length limit is 600 ft 182 m The wire for the communication stub must be the same as that used for BACnet communication link wiring low capacitance 18 gauge shielded twisted pair with stranded tinned copper conductors Duct Temperature Sensor Wiring 20 The Tracer UC400 controller has separate analog inputs for discharge air sensors and supply air sensor The typical mounting position of the supply air sensor is upstream of the VAV unit and connected into the UC400 controller Figure 6 p 21 at Alb and However the discharge air temperature sensor may be downstream of the VAV unit at the discharge and connected into the Tracer UC400 controller at 14 and Refer to Controller Diagrams Figure 4 p 18 and Figure 5 p 19 for the Tracer UC400 controller terminal locations VAV SVX07A EN e TRANE VAV Start Up Check Out Procedure Figure 6 Duct temperature sensors upstream downstream Unit Supply Air Sensor Controls Discharge Air Sensor Binary Input Wiring Each Tracer UC400 controller provides three binary inputs On the Tracer UC400 controller factory installed controller one of the binary inputs is configured in the factory for occu
147. ut tagout procedures to ensure the power can not be inadvertently energized When necessary to work with live electrical components have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks Failure to follow all of the recommended safety warnings provided could result in death or serious injury In the event that the Tracer UC400 controller reports an incorrect zone setpoint properly inspect the following 1 Verify that the zone sensor is wired correctly Check wiring for the correct connections See section 2 for further details on zone sensor wiring 2 Check that the zone sensor setpoint dial is not defective Disconnect the zone sensor terminal plug from the Tracer UC400 controller and using an Ohmmeter measure the resistance across the terminals 2 common and 3 setpoint Compare the resistance to specified setpoint on sensor using Table 12 p 69 The resistance shown should correlate within 2 degrees of setpoint shown onTable 12 p 69 If not the zone sensor needs to be replaced 3 Checkthe wiring and the Tracer UC400 controller With wires still connected to Tracer UC400 controller disconnect zone sensor setpoint wires and check voltage DC from wires that were connected to terminals 2 and 3 of zone sensor You should measure 5VDC If you do not have 5VDC then see if the Tracer UC400 controller is outputting This can be done b
148. vels of discharge air temperature are possible Since discrete discharge air temperature levels do not always provide an instantaneous temperature within the required band staged reheat controls to a 30 minute average discharge air temperature The discharge air temperature setpoint is limited from 20 F to 70 F Staged Electric Reheat Control Units that are equipped with electric reheat should be sized so that the maximum temperature rise across the heating elements is from 40 F to 48 F 22 22 C to 26 67 C it should never exceed 50 F 27 78 for safety reasons These values were selected to allow the largest control range without damage to the heater elements For staged electric ventilation flow control the number of installed stages can range from one to three Three stages are recommended since finer control is available with more stages In cases where the outdoor air temperature is more than 48 F 26 67 C below the discharge air temperature setpoint the controller cannot provide the requested control performance The controller provides no cooling capacity If the outdoor air temperature OAT is above the discharge air temperature setpoint the discharge air temperature cannot be controlled and the discharge air temperature is equal to the OAT Staged Hot Water Reheat Control Units equipped with hot water coils should be sized so the maximum temperature of air leaving the coil does not exceed 140 F 60 C F Since only on
149. y disconnecting the wires on the Tracer UC400 controller on terminals Ground and AI2 and measure the VDC It should be 5VDC If you have 5VDC at the Tracer UC400 controller the wires going to the zone have an open If 5VDC is not present check incoming power to the Tracer UC400 controller on XFMR 24 VAC input and gt gt Voltage should measure 24 VAC 10 If you measure the proper voltage at on XFMR 24 VAC input and and no voltage at and Al2 replace Tracer UC400 controller 4 Verify that the zone sensor setpoint is not shorted out Check the resistance across the wires Disconnect wires from the Tracer UC400 controller 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 Wireless Zone Sensor Failure Troubleshooting Procedures Servicing and Testing Tools No special tools or software are necessary to service and test the wireless sensor system Test the system by using e The LEDs on the receiver LEDs on the model WTS WZS sensor and the display on the model WDS sensor Test button on the sensor address test mode on the receiver and volt ohm meter 70 VAV SVX07A EN TRANE Troubleshooting In the event that the Tracer UC400 controller reports an incorrect zone temperature or setpoint properly inspect the rece

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