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BAS-SVX62E-EN

49

Troubleshooting

This section provides information about the following:

•

“Diagnostics”

•

“Troubleshooting Procedures,” p. 50

Diagnostics

The following table provides information about controller diagnostics.

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 components could
result in death or serious injury.

Table 13. Controller Diagnostics

Diagnostic

Air Valve

Fan

Reheat

Discharge air temperature failure (space
temperature control)

Normal

Normal

Normal

Discharge air temperature failure (ventilation
flow control without reheat)

Normal

Do not care

Do not care

Discharge air temperature failure (ventilation
flow control with reheat)

Closed

Do not care

Off

Discharge air temperature failure (flow tracking
control)

Normal

Do not care

Do not care

Low airflow (space temperature control)

Normal

Normal

Local electric heat is Off; local
hydronic and all remote heat is
normal

Low airflow (ventilation flow control)

Normal

Do not care

Local electric heat is Off; local
hydronic is normal; remote is Don't
Care

Supply air temperature failure (space
temperature control)

Normal

Normal

Local electric heat is Off

(a)

; local

hydronic and all remote heat is
normal

Supply air temperature failure (ventilation flow
control)

Normal

Do not care

Normal

Supply air temperature failure (flow tracking
control)

Normal

Do not care

Do not care

Space temperature fail (space temperature
control)

(b)

Occupied: cool minimum flow
setpoint Unoccupied: closed

Series fan enabled;



parallel fan Off

Off

Space temperature fail (ventilation flow
control)

Normal

Do not care

Normal

Space temperature fail (flow tracking control)

Normal

Do not care

Do not care

Local setpoint failure

Normal

Normal

Normal

Flow sensor failure or flow sensor calibration
failure (space temperature control)

Normal pressure dependent control Normal

Normal

Flow sensor failure or flow sensor calibration
failure (ventilation flow control)

Normal pressure dependent control Do not care

Normal

Flow sensor failure or flow sensor calibration
failure (flow tracking control)

If the configured airflow tracking
offset is positive, configure
maximum airflow If the configured
airflow tracking offset is negative,
configure minimum airflow

Do not care

Do not care

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Содержание Tracer UC210

Страница 1: ...ic knowledge and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in t...

Страница 2: ...could result in death or serious injury WARNING Personal Protective Equipment PPE Required Installing servicing this unit could result in exposure to electrical mechanical and chemical hazards Before...

Страница 3: ...any time and to make changes to its content without obligation to notify any person of such revision or change Trademarks All trademarks referenced in this document are the trademarks of their respect...

Страница 4: ...17 Setting Up the UC210 Controller on a BACnet Link 18 Setting the Address 18 BACnet Networks Without a Tracer SC System Controller 19 BACnet Networks With a Tracer SC System Controller 19 Wiring Requ...

Страница 5: ...ting Procedures 50 UC210 Controller Failure 50 UC210 Controller Communication Loss 51 Wired Zone Sensor Failure 52 Wired Zone Sensor Setpoint Failure 54 Airflow Sensor Failure 55 Supply Discharge Air...

Страница 6: ...erving The VAV terminal supplies the correct amount of ventilation air When reheat is added it tempers the ventilation air to reduce the load on the air handler by sensing the discharge air temperatur...

Страница 7: ...4 VDC load plus 12 VA maximum per binary load See Table 6 p 15 for sizing details Environmental Rating Enclosure NEMA 1 Installation U L 840 Category 3 Pollution U L 840 Degree 2 Agency Compliance UL9...

Страница 8: ...8 BAS SVX62E EN Overview Figure 2 Dimensions without Actuator Figure 3 Dimensions Trane VAV Factory Version UC210 251 4 mm 9 90 in 120 0 mm 4 72 in 155 6 mm 6 13 in 114 3 mm 4 50 in...

Страница 9: ...AS 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 tempora...

Страница 10: ...le 3 Comparison of UC210 UC400 to VV550 551 and VAV4 2 Tracer UC210 UC400 Tracer VV550 VV551 VAV 4 2 Supports BACnet Supports LonTalk Supports Trane proprietary Comm4 or Comm3 Local CO2 sensor input i...

Страница 11: ...esistive 100 to 100 k Binary Open collector dry contact Low impedance relay contacts recommended Pulse Solid state open collector Minimum dwell time is 25 ms On and 25 ms Off Binary input BI1 1 24 Vac...

Страница 12: ...erature thermistor 10k 77 F 25 C range 32 F to 122 F 0 C to 50 C AI2 Space setpoint potentiometer 1k from 50 to 90 F 10 to 32 2 C thumbwheel functionality supported AI3 Discharge air temperature 10k 7...

Страница 13: ...controller wiring section If heat has been added to the unit verify that the proper output connections are correct as detailed in the UC210 controller wiring section Verify that the tubing is properl...

Страница 14: ...ies F Models VariTrac and VariTrane is up to 28 VA Refer to Table 6 p 15 for information about calculating actual VA requirements WARNING Hazardous Voltage Disconnect all electric power including remo...

Страница 15: ...ts TRIAC BO1 to BO5 0 5 A 12 VA 24 Vac 12 VA Maximum Below is an example calculation for a cooling only box current requirements Description Draw UC210 no I O Setpoint and Zone Temperature Flow Occupa...

Страница 16: ...oubleshooting Guide BAS SVX51 EN Wiring Guidelines Use 18 AWG Trane purple shielded communication wire for BACnet installations Link limit of 4 000 ft and 60 devices maximum without a repeater Use a T...

Страница 17: ...ac Use same communication wire type without terminators for the zone sensor communication stubs from the UC210 controller IMC terminals to the zone sensor communication module Zone Sensor communicatio...

Страница 18: ...Practices and Troubleshooting Guide BAS SVX51 EN Setting the Address The three 3 rotary address dials on the UC210 serve one or two purposes depending upon the network they are always used for the MA...

Страница 19: ...t networks with a Tracer SC system controller the Device ID for the UC210 controller is always soft set by the system controller using the following scheme refer to the illustration below Note The BAC...

Страница 20: ...run AC power wires in the same wire bundle with input output wires Important Failure to comply may cause the controller to malfunction due to electrical noise 18 AWG 0 823 mm2 copper wire is recommen...

Страница 21: ...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 adjus...

Страница 22: ...tions outside of the operating temperature and the humidity range Wiring Each unit must be controlled by a zone sensor that utilizes a standard 10K at 77 F thermistor for temperature outputs Field wir...

Страница 23: ...onnected to BACnet link an air supply sensor is needed for auto changeover from cooling to heating mode or from heating to cooling mode Figure 8 Duct sensor locations and wiring Binary Wiring Binary I...

Страница 24: ...et Unoccupied is the other state If the binary input is set as Out of Service the default occupancy mode is occupied Binary Output Wiring Binary outputs that are required for unit operation are factor...

Страница 25: ...ails about wiring communication links refer to the BACnet Best Practices and Troubleshooting Guide BAS SVX51 EN Figure 9 Controller LEDs UC210 ADDRESS 0 1 2 3 4 5 6 7 8 9 x1 0 1 2 3 4 5 6 7 8 9 x10 0...

Страница 26: ...o talk to the controller or if it is capable of talking to the controller Also determine if the communication status shows down all of the time In addition check polarity and baud rate RX blinks yello...

Страница 27: ...er UC210 controller has four 4 valid occupancy modes that display under the operating status Occupied mode Unoccupied mode Occupied Standby mode and Occupied Bypass mode Heat Cool Status The heat cool...

Страница 28: ...lt Displays default configured setpoint Discharge Air Temperature Shows the discharge air temperature input which is the temperature of the air leaving the VAV box DA Temperature Setpoint BAS Displays...

Страница 29: ...C If a zone sensor thumbwheel setpoint is not being used this setpoint are added and subtracted from the Space Temperature Setpoint Default to determine the standby heating and cooling setpoints Spac...

Страница 30: ...ch requires reading both the maximum and minimum airflows during balancing Two point balancing ensures greater accuracy over the entire range of air valve operation Airflow Gain The airflow gain is us...

Страница 31: ...int Maximum Heat until the command changes The 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 vo...

Страница 32: ...puts 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 temp...

Страница 33: ...s the results of the two point air valve calibration along with the Minimum and Maximum Air Flow Setpoints Discharge Air Reset Limits This box contains settings that are used for Dual max VAV boxes Wh...

Страница 34: ...in that the VAV unit will use remote heat before local heat Heat Control Type Electric Choices are Pulse Width Modulation Staged and SCR Chose the correct electric heat type Number of Reheat Stages P...

Страница 35: ...n when the controller is in the calibration sequence If auto calibration is disabled the air valve and water valve are not driven closed and the flow sensor zero flow voltage reading is not recorded R...

Страница 36: ...pied 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...

Страница 37: ...pied or standby offset being added to the communicated local or default setpoint the occupied standby cooling setpoint or the unoccupied cooling setpoint is used The outputs are controlled based on th...

Страница 38: ...is providing heat to the space If the heating capacity increases the air valve modulates further open to provide more hot air to the space Air Valve Control in Space Temperature Control Operation Air...

Страница 39: ...SCR heat the heater is turned on and off on a very short cycle time to provide proportional control of heat output This allows for closer matching of heating capacity to the heating load resulting in...

Страница 40: ...with a temperature between 85 F and 95 F being optimal for space temperature control If air that is too hot is delivered to the space through ceiling mounted diffusers and then leaves the space throu...

Страница 41: ...Remote Fan Stage 1 Stage 2 Stage 3 Fan Not applicable Parallel fan Not applicable Not applicable Not applicable Fan and PWM electric 1 to 2 stages Not applicable Parallel fan Local PI capacity loop E...

Страница 42: ...the space requires cooling the air valve modulates between Airflow Setpoint Maximum and Airflow Setpoint Minimum to maintain space temperature at the active cooling setpoint and the water valve is clo...

Страница 43: ...supports an electronically commutated motor ECM The controller turns the ECM fan ON and OFF It does not change the ECM fan airflow dynamically The fan operates at a single speed to match the fan flow...

Страница 44: ...le 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 a...

Страница 45: ...ly repositions itself in response to changes in inlet static pressure By using pressure independent control for ventilation purposes a constant volume of fresh air can be maintained regardless of smal...

Страница 46: ...on 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 1...

Страница 47: ...protection The operation of freeze protection for local hot water heat depends on whether the controller is operating as a network controller or a stand alone controller Table 12 Unoccupied VFC Contro...

Страница 48: ...lated airflow setpoint is less than 10 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...

Страница 49: ...s Off local hydronic and all remote heat is normal Low airflow ventilation flow control Normal Do not care Local electric heat is Off local hydronic is normal remote is Don t Care Supply air temperatu...

Страница 50: ...short If controller still fails replace controller Note For Instructions on how to use Tracer TU refer to the Tracer TU Online Help and to the Tracer TU Service Tool Getting Started Guide TTU SVN02 Ch...

Страница 51: ...o define a three digit address when the UC210 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 thr...

Страница 52: ...the terminals 1 and 2 Compare the resistance to the temperature refer to Table 14 p 53 The resistance value should be within 2 degrees near those measured with an accurate temperature measuring devic...

Страница 53: ...together and need to be replaced Table 14 Zone Sensor Temperature Resistance Temperature oF Thermostat Thumbwheel Resistance Ohms a a Thumbwheel resistance checks are made at terminal 2 and 3 on the...

Страница 54: ...o the UC210 controller on XFMR 24 Vac input and It should measure 24 Vac 15 If the proper voltage is measured at the XFMR 24 Vac input and and there is no voltage at the and AI2 replace the UC210 cont...

Страница 55: ...possible Trane recommends pulling the transducer tubes off during the calibration process to simulate this e Select the Zero Air and Water Valve Start button on the Commissioning page Tracer TU servic...

Страница 56: ...the high and low tubes from the transducer to simulate no flow Read the transducer output voltage on P1 of the UC210 controller between the green and the black wires with a voltmeter The voltage shoul...

Страница 57: ...ting the wires on the UC210 controller on terminals AI3 and for a discharge air temperature sensor and measuring the Vdc It should be 5 Vdc If there is 2 6 3 0 Vdc at the UC210 controller the wires go...

Страница 58: ...voltage check up stream of controller to see were voltage has been interrupted Refer to the section Appendix Typical Trane Factory Wiring Diagrams p 67 WARNING Hazardous Service Procedures The mainte...

Страница 59: ...e has been interrupted Refer to the section Appendix Typical Trane Factory Wiring Diagrams p 67 Actuator motor has failed Check the incoming power to the UC210 controller on XFMR 24 Vac input and TRIA...

Страница 60: ...ify that the fan cycles ON Check BO to common It should have 24 Vac If it does not measure the power input to on XFMR 24 Vac input and of the UC210 controller The supply voltage should be between 20 4...

Страница 61: ...short cycling Increase the UC210 controller heating setpoint causing fan to cycle ON Lower the heating setpoint by 6 degrees and the fan will cycle OFF If the fan cycling is based on airflow the unit...

Страница 62: ...een completed check motor fan winding integrity and bearing failure PSC Permanent Split Capacitor Variable Speed Motor Check If the PSC Variable speed motor control does not change the motor speed che...

Страница 63: ...nd relay output Check correct binary output to common It should have 24 Vac If it does not measure the power input to on XFMR 24 Vac input and of the UC210 controller The supply voltage should be betw...

Страница 64: ...re the power input to XFMR 24 Vac input and of the UC210 controller The supply voltage should be between 20 4 to 27 6 Vac 24 Vac cataloged However voltages at either extreme may result in system insta...

Страница 65: ...Position Hot Water Failure In the event that the heat outputs do not energize check the following Zone temperature is at or above the heating setpoint Increase the UC210 controller heating setpoint Ve...

Страница 66: ...ged However voltages at either extreme may result in system instability Heat TRIAC s can be checked by purchasing a 24 Vac LED and connecting to the TRIAC output If they are lit it is calling heat out...

Страница 67: ...BAS SVX62E EN 67 Appendix Typical Trane Factory Wiring Diagrams Figure 13 UC210 Controller Wiring for Single Duct Unit...

Страница 68: ...68 BAS SVX62E EN Appendix Typical Trane Factory Wiring Diagrams Figure 14 UC210 Controller Wiring for Fan Powered Unit...

Страница 69: ...roller Installation and Setup BAS SVX31 Air Systems for Tracer SC Application Guide BAS APG007 Tracer Graphical Programming 2 TGP2 Editor Online Help Tracer Graphical Programming TGP2 Application Guid...

Страница 70: ...odulation PWM 39 Electric Heat SCR 39 Heating Operation 37 Hot Water Heat 42 On Off Electric Reheat 42 Reheat Control 38 Space Temperature Control Mode 37 Space Temperature Control Fan Powered Units 4...

Страница 71: ...1 Index Unoccupied Ventilation Flow Control 47 W Wiring Diagrams 67 Fan Powered Unit 68 Single Duct Unit 67 Wiring Installation Guidelines 14 UC210 Controller Power Wiring 14 UC210 Controller Pre powe...

Страница 72: ...ease industrial productivity and efficiency We are a 13 billion global business committed to a world of sustainable progress and enduring results For more information visit www ingersollrand com Inger...

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