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VAV-SVX01C-EN

UCM Programming and Operation

Chapter Overview

This chapter contains information about the following:

•

Accessing Rover/Comm4

•

UCM Home Tabs: At a Glance

•

UCM Home Tabs: Instructions

•

Entering and Exiting the Service Mode

•

Overriding VAVs

•

Resetting Diagnostics

Accessing Rover/Comm4

Rover Overview

Rover is a service tool that allows parameters to be viewed or adjusted in UCM v 2.0 and higher.
Prior to UCM v 2.0, you would need to use EveryWare to access units that were stand alone. The
operating and programming guide for Rover is EMTX-SVX01*-EN. Rover Comm4 is a software
application for monitoring, configuring, and testing VAV II/III/IV controllers on Comm4 links. Rover
Comm4 replaces Every Ware service software.

Note:

For Instructions on how to use Rover Comm4, refer to the Rover Comm4 online Help by
clicking Contents and Index on the Help menu.

Laptop Requirements and Complete Connection Instructions

For instructions on connecting a PC laptop to a Comm4 link, refer to the Installing Rover Service
Tool Version 5.0, 3270 3275.

Note:

A hard copy of this document is in the Rover package and an electronic copy
(Installation.pdf) can be found on the Rover installation CD-ROM.

To connect to a Comm4 Link

1.

Insert the Comm4 card in the PC laptop.

2. Connect the cables as shown in the appropriate figure. Refer to

Figure 15, p. 30

for connecting

to a Comm4 controller through a zone sensor and

Figure 16, p. 31

for Connecting to a Comm4

controller using alligator clips.

Note:

Make sure to maintain polarity.

Figure 15. Connecting to a Comm4 controller through a zone sensor.

Adapter cable

RJ11
plug

Comm4
PCMCIA card

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Содержание VAV-UCM 4.2

Страница 1: ...May 2010 VAV SVX01C EN Installation Operation Maintenance VAV UCM 4 2...

Страница 2: ...properly installed and grounded field wiring poses FIRE ELECTROCUTION hazards To avoid these hazards you MUST follow requirements for field wiring installation and grounding as described in NEC and yo...

Страница 3: ...Zone Sensor 14 Multiple UCM s per Auxiliary Duct Temperature Sensor 14 Zone Sensor Hardwired Option 14 Zone Sensor Wireless Option 14 Communication Wiring 15 Communication Link Wiring 15 DIP Switch Se...

Страница 4: ...ng and Exiting the Service Mode 44 Overriding VAVs 45 Resetting Diagnostics 45 Downloading Program Files from PC to DDC UCM 4 2 46 Sequence of Operations 48 Chapter Overview 48 Single Duct Units 48 Ov...

Страница 5: ...Procedures 68 Auxiliary Temperature Sensor Failure Procedures 70 Auxiliary C02 Sensor Failure Procedures 71 VAV Damper Failure Procedures 72 VAV Series Fan Failure Procedures 73 VAV Parallel Fan Fail...

Страница 6: ...livery to the space The volume of incoming air is monitored and the damper adjusts to provide accurate control independent of the duct pressure The damper modulates between operator airflow set points...

Страница 7: ...er valve is closed after reset This prevents a reset during hot water override from causing the valve to stop moving This also changes the behavior after reset when there is a reheat demand the hot wa...

Страница 8: ...door air quality requirements are provided A resultant ventilation ratio can be used to calculate an air handler s outside air damper minimum position or other control strategies Water Heat Output Con...

Страница 9: ...d accessories must be stored for a period of time prior to being installed they must be protected from the elements The storage location temperature should be between 40 to 150 F 40 to 65 6 C and the...

Страница 10: ...system instability Verify that communications wiring has properly been terminated at TB2 1 and TB2 2 Polarity is very important on the communications link Verify that the zone sensor connections are c...

Страница 11: ...specifically with that UCM Off Polarity is correct and no communication is occurring on the link Table 2 Yellow LED communication indicator function continued LED State Indication Table 3 Zone sensor...

Страница 12: ...s 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 least 16 AWG for...

Страница 13: ...d wiring MUST be performed by qualified personnel Failure to follow these requirements could result in death or serious injury Location and Mounting A zone sensor in each control zone should be locate...

Страница 14: ...master UCM Zone Sensor Hardwired Option Depending on the zone sensor options used a maximum of five wires may be required to run from the UCM to the zone sensor The zone sensor options are Zone sensor...

Страница 15: ...terminated at the Tracer Summit However a consistent documented wiring path will help troubleshoot communication problems after installation Field wiring for the communication link must meet the follo...

Страница 16: ...e UCM These switches allow a user to set a unique communication address for each UCM Each UCM on a given communication link must have a unique address in order for Tracer Summit or the CCP to communic...

Страница 17: ...ON ON ON ON OFF 34 98 ON OFF ON ON ON OFF 35 99 OFF OFF ON ON ON OFF 36 100 ON ON OFF ON ON OFF 37 101 OFF ON OFF ON ON OFF 38 102 ON OFF OFF ON ON OFF 39 103 OFF OFF OFF ON ON OFF 40 104 ON ON ON OF...

Страница 18: ...NO REALIZAR LO ANTERIORMENTE RECONFIGURED AS A CO2 SENSOR INPUT VIA THE COMMUNICATIONS INTERFACE MAINTAINED TO PREVENT PERMANENT DAMAGE TO CONTROL BOARD IF ONE LEG OF 24VAC CONTACTORS ARE 24 VAC 12VA...

Страница 19: ...VAV SVX01C EN 19 UCM 4 2 Installation and Wiring Figure 4 Wiring diagram for fan powered units with field installed reheat...

Страница 20: ...TB1 2 TB1 1 24V GND BL Y Y BL DIGITAL DISPLAY ZONE SENSOR DIGITAL DISPLAY ZONE SENSOR OPTIONAL FIELD INSTALLED 6 W COMM JACK REMOTE MTD 4 TB1 2 TB1 1 11 TB3 3 10 7 6 TB2 6 TB2 5 3 2 1 TB3 2 TB3 1 ZONE...

Страница 21: ...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...

Страница 22: ...ensor Setting the rotary address switches on the receiver and on the sensor Replacing and securing the receiver cover Powering the sensor and associating the sensor to the receiver Applying power to t...

Страница 23: ...areas of direct sunlight Avoid areas in the direct air stream of air diffusers Avoid exterior walls and other walls that have a temperature differential between their two sides Avoid areas close to so...

Страница 24: ...iated with 2 Make a notation of the address and location where this sensor is to be mounted Note Do not use 000 as an address for installation If you set the address to 000 it will Remove all associat...

Страница 25: ...TB3 5 A CO2 V 0 INSTALLED ZONE SENSOR TB3 6 GND TB1 1 24V MOUNTED DUCT MOUNTED WALL 24V GND 2 OPTIONAL FIELD REMOTE MTD W COMM JACK ZONE SENSOR 4 3 2 3 1 1 TB3 3 DIGITAL DISPLAY ZONE SENSOR OPTIONAL...

Страница 26: ...ess wire identification Wire Label Color Function HEATING SET N A Not used For future use FAN SYSTEM N A Not used For future use SETPOINT Red Space temperature setpoint ZONE White Zone temperature GND...

Страница 27: ...o operate LED1 LED2 and LED3 flash rapidly in succession round robin style while the channel scan is in progress Note Do not attempt association until the channel scan is finished After the channel sc...

Страница 28: ...y 50 minutes Note LED3 on the receiver stops blinking to indicate that association has been established Testing Signal and Battery Strength The following recommended test indicates signal and battery...

Страница 29: ...are true The receiver address is changed from its current setting 001 999 The receiver receives a disassociation notification from its associated sensor The receiver does not receive a communication...

Страница 30: ...service software Note For Instructions on how to use Rover Comm4 refer to the Rover Comm4 online Help by clicking Contents and Index on the Help menu Laptop Requirements and Complete Connection Instr...

Страница 31: ...Service Tool screen will appear 4 Double click on the Comm4 Service Tool icon to access a Comm4 VAV UCM This tool allows the user to monitor configure and test Comm4 Figure 16 Connecting to a Comm4 co...

Страница 32: ...for VAV UCM s range from 65 127 7 Select the desired device or range of devices and click the Scan button You ll be able to watch as the applications scan for the selected data Note The numbers selec...

Страница 33: ...n 8 Once the scan is complete the results will populate the device tree on the left hand side of the Rover Comm4 screen 9 Access the desired UCM from the device tree UCM Home Tabs At a Glance Figure 2...

Страница 34: ...ws whether the fan is on or off Auxiliary Input Type Shows the two types of auxillary inputs temperature and C02 They are mutually exclusive to one another Value The displayed value will reflect eithe...

Страница 35: ...e shown are non adjustable and are used to show values only Note The Setpoints tab will be defined in programming the configuration menus Wireless Tab Note This tab displays the older style wireless n...

Страница 36: ...guration To access the data fields for each tab and to make adjustments select the Configure button as shown in Figure 22 p 36 To make adjustments find the correct parameter change it and download to...

Страница 37: ...int low limit set to the factory defaults cooling high limit 102 F 38 8 C heating low limit 43 F 6 1 C should prevent them from impacting field operation High Limit This limit applies to the occupied...

Страница 38: ...Flow value must be less than or equal to the Maximum Flow value Min Local Heat If the Min Local Heat flow is enabled then the Min Local Heat flow is used to determine the minimum position flow instead...

Страница 39: ...Type Select the proper unit type The unit type information is maintained in the controller s EEPROM Important Edit the unit type BEFORE editing any items on the above list Unit types available for all...

Страница 40: ...l hot water and aux output will be grayed out and non selectable Local Heat Setpoint When the UCM version is 4 0 and the unit type is not Bypass Damper Rectangular or Bypass Damper Round this value is...

Страница 41: ...UCM to an upper level system controller The upper level system controller shall be responsible for causing any system changes necessary to provide occupied control When configured for an occupancy se...

Страница 42: ...r Select Averaged to use the sensor as part of a wired system OR to use the sensor as an averaging sensor in an older style wireless system Type This line is used to edit the type of temperature senso...

Страница 43: ...e old style wireless system that used spread spectrum technology For details on how this can be set up for existing applications using the older style wireless sensor see VAV SVX01B EN VAV UCM 4 0 Adv...

Страница 44: ...Rectangular UCM is programmed it is also configured to its best fit to a generic style or VariTrane D style box Using this method newer boxes can be used as replacements or to expand legacy systems No...

Страница 45: ...lect whether to override TUCs or VAVs 3 Click the units you want to override 4 In the list of overrides click the type of override you want to perform 5 Click the Override button The controller automa...

Страница 46: ...nu and click Save As 3 The Save As dialog box will appear Name unit and click Save Downloading Program Files from PC to DDC UCM 4 2 1 Select the Configure button and the Configuration screen will appe...

Страница 47: ...ck the File menu and click Open 3 The Open dialog box will appear Select the file you wish to open and click the Open button 4 Download to DDC VAV controller 5 Program is now in controller Figure 29 C...

Страница 48: ...ished heat is allowed to operate according to the Heat Control Type specified for the controller For electric heat units this heating minimum flow set point must be at or above 20 of the unit cataloge...

Страница 49: ...Fan Powered Units Parallel Fan Powered Units Occupied Units Air valve control for parallel fan powered units is the same as for single duct units The first heat output is utilized to control the fan T...

Страница 50: ...trols the air valve as a heating source rather than cooling Fan and heat outputs are disabled for parallel units with electric heat If the heat type is hot water heat then the fan will remain on if th...

Страница 51: ...energized anytime the air valve s position is greater than 0 Heating If the control action is edited to HEAT the UCM controls the air valve as a heating source rather than cooling The unit fan remain...

Страница 52: ...mperature reported from the UCM Note TOV push buttons should be pressed for at least 2 seconds and not more than 15 seconds Drive to Max and Go Unoccupied When a zone sensor thumbwheel is turned to it...

Страница 53: ...mperature fails above the high limit short or above 100 F 37 8 C the airflow shall be controlled to the maximum flow set point Flow Sensor Failure If a flow sensor failure is reported open short fails...

Страница 54: ...d be a 1 5 duct diameter long run of straight ducting into the VAV units inlet System Setup Set the outside air dampers to their minimum position Start the supply and return air fan s Before balancing...

Страница 55: ...boxes to MIN Note If the VAV boxes have already been assigned to groups and these groups are separate thermal zones then the balancing can be done on a group basis VAV Single Duct Unit Air Balancing...

Страница 56: ...dy be done in the factory in its commissioning process 2 After balancing a group box return that group box flow override to AUTO 3 Continue to the next group box repeating VAV unit air balancing proce...

Страница 57: ...ftware 2 Select a VAV box to balance and drive its hot water valve open max hot water override 3 Using hydraulic pressure gauges measure the flow across the high and low ports Convert this data from a...

Страница 58: ...s could result in death or serious injury Chapter Overview This chapter contains information about the following SP Diagnosing the Problem Diagnostic Log Diagnostic Table Troubleshooting Procedures UC...

Страница 59: ...see Figure 35 p 59 are listed to aid in understanding current operation Reported items are 1 Timed Override Exists 2 Cancel Timed Override 3 Auxiliary Temperature Sensor Not Present 4 Unoccupied Requ...

Страница 60: ...rted control as if very hot temperature Thumbwheel Setpoint Open OR short AND no active wireless sensors Setpoints from EEPROM used Air Flow For UCM 3 3 and prior Flow 10 when flow control point 10 OR...

Страница 61: ...Remove the communication link past the first VAV box and verify the polarity Check resistance across the communication wires for possible shorts or open circuitry 8 Communication link failure down On...

Страница 62: ...M the wires going to the zone have an open If 5VDC is not present check incoming power to the UCM board on TB1 1 and TB1 2 Should measure 24 VAC 10 If you measure the proper voltage at TB1 1 and TB1 2...

Страница 63: ...e the VDC It should be 5VDC If 5VDC is shown on terminals TB3 2 and TB3 3 at the UCM the wires going to the zone have an open If 5VDC is not present check incoming power to the UCM board on TB1 1 and...

Страница 64: ...st button S5 Table 18 p 65 They will occur on the receiver independently of any user action Table 18 p 65 Figure 36 Wireless sensor set components with base plates removed Table 15 Diagnostics LED1 LE...

Страница 65: ...not properly set defective receiver Table 17 Battery status LED5 on the sensor User Action LED Display Indicates Press Test Button SS Solid green for 5 seconds Battery condition is adequate for prope...

Страница 66: ...ntly off Poor signal quality Unreliable communication Strongly recommend moving the sensor or receiver to a better location Figure 37 Table 19 Output failure modes of operation Situation Zone Temperat...

Страница 67: ...connect the receiver sensor wires on the VAV UCM on terminals TB3 1 and TB3 2 and measure the VDC It should be 5VDC If 5VDC is not present check incoming power to the Table 20 Receiver resistance tabl...

Страница 68: ...rectly i e different from the balance report properly inspect the following Recalibrate VAV unit by cycling power to unit This can also be accomplished with Rover Summit or CCP software Note Cycling p...

Страница 69: ...if necessary 3 Wrong unit size downloaded into the UCM setup menu Verify that the actual unit size matches the unit s nameplate 4 Poor inlet configuration Trane recommends 1 duct diameters of straigh...

Страница 70: ...al 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...

Страница 71: ...res going to the zone have an open If 5VDC is not present check incoming power to the UCM board on TB1 1 and TB1 2 Should measure 24 VAC 10 If proper voltage measured on TB1 1 and TB1 2 and no voltage...

Страница 72: ...ritrac units Adjust to correct damper travel time using Rover software See Operation and Programming chapter Damper actuator loose on shaft Tighten damper actuator set screw to damper shaft Measure th...

Страница 73: ...ower input to TB1 1 power and TB1 2 ground of the UCM board The supply voltage should be between 20 and 28 VAC 24 VAC cataloged However voltages at either extreme may result in system instability Tria...

Страница 74: ...rflow is below this set point For this parallel fan configuration the fan control point if specified in a percentage of unit airflow must be set between 15 and 30 of the units cataloged airflow to ass...

Страница 75: ...e tests replace PSC motor speed controller Testing ECM DCU and ECM VCU Fan Control If ECM is not controlling Fan Motor properly inspect the following Note The ECM controller has 4 wire pin connector t...

Страница 76: ...acer Summit has the electric heat output disabled 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 l...

Страница 77: ...taloged 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 close...

Страница 78: ...AV Two Position Hot water failure Check binary outputs In the event that the heat outputs are not energizing properly inspect the following 1 Zone temperature is at or above the heating set point Incr...

Страница 79: ...ND 2 OPTIONAL FIELD REMOTE MTD W COMM JACK ZONE SENSOR 4 3 2 3 1 1 TB3 3 DIGITAL DISPLAY ZONE SENSOR OPTIONAL FIELD INSTALLED DIGITAL DISPLAY ZONE SENSOR TB2 5 TB2 6 REMOTE MTD W COMM JACK TB3 1 TB3 2...

Страница 80: ...TD 4 TB1 2 TB1 1 11 TB3 3 10 7 6 TB2 6 TB2 5 3 2 1 TB3 2 TB3 1 ZONE SENSOR OPTIONAL FIELD W COMM JACK INSTALLED ZONE SENSOR REMOTE MTD 3 4 TB3 1 TB3 2 TB2 5 1 2 TB2 6 3 2 TB3 3 1 ZONE SENSOR TERMINALS...

Страница 81: ...VAV SVX01C EN 81 Troubleshooting Figure 46 Single duct with single phase voltage electric heat...

Страница 82: ...82 VAV SVX01C EN Troubleshooting Figure 47 Single duct with three phase voltage electric heat...

Страница 83: ...VAV SVX01C EN 83 Troubleshooting Figure 48 SCR PSC fan powered with single phase voltage electric heat...

Страница 84: ...84 VAV SVX01C EN Troubleshooting Figure 49 SCR PSC fan powered with three phase voltage electric heat...

Страница 85: ...VAV SVX01C EN 85 Troubleshooting Figure 50 ECM fan powered with single phase voltage electric heat...

Страница 86: ...86 VAV SVX01C EN Troubleshooting Figure 51 ECM fan powered with three phase voltage electric heat...

Страница 87: ...Resistance Temperature Detector oC Celsius SAP Supply Air Pressure CCP Central Control Panel SAT Supply Air Temperature CFM Cubic Feet per Minute TB Terminal Block CMS Cubic Meters per Second TOV Tim...

Страница 88: ...or e mail us at comfort trane com Literature Order Number VAV SVX01C EN Date May 2010 Supersedes VAV SVX01C EN March 2009 Trane has a policy of continuous product and product data improvement and res...

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