UV-SVN03_.book Page 1 Thursday, January 24, 2013 5:27 PM Installation, Operation, and Maintenance Vertical Unit Ventilator Classroom Unit Ventilator—Model VUV Models VUVE “A” and later Design Sequence 750 cfm—1500 cfm SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
UV-SVN03_.book Page 2 Thursday, January 24, 2013 5:27 PM 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 death or personal injury.
UV-SVN03_.book Page 3 Thursday, January 24, 2013 5:27 PM Warnings, Cautions and Notices WARNING Hazard of Explosion and Deadly Gases! Never solder, braze or weld on refrigerant lines or any unit components that are above atmospheric pressure or where refrigerant may be present. Always remove refrigerant by following the guidelines established by the EPA Federal Clean Air Act or other state or local codes as appropriate.
UV-SVN03_.book Page 4 Thursday, January 24, 2013 5:27 PM Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Model Number Descriptions . . . . . . . . . . . . . . 6 General Information . . . . . . . . . . . . . . . . . . . . . 8 Unit Description . . . . . . . . . . . . . . . . . . . . . 8 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ECM Application Notes . . . . . . . . . . . . . . . . . . 10 Dimensions and Weights . . . . . . . . . . . . . . . .
UV-SVN03_.book Page 5 Thursday, January 24, 2013 5:27 PM Pre-Start-up Checklist . . . . . . . . . . . . . . . 71 Output Testing (UC400) . . . . . . . . . . . . . . .95 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Diagnostics (UC400) . . . . . . . . . . . . . . . . .95 Tracer ZN520 Unit Startup . . . . . . . . . . . . 72 Troubleshooting (Wireless Controls) . . . . .96 Tracer UC400 Unit Startup . . . . . . . . . . . 72 Troubleshooting (Tracer ZN520) . . . . . . .
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UV-SVN03_.book Page 7 Thursday, January 24, 2013 5:27 PM Model Number Descriptions Digit 32 — Unit Depth Digit 41 — Filter A B C = = = 1 2 3 D = E = F = G = H = J = Standard (16-5/8 in.) 21-1/4 in. Depth with Baffle 21-1/4 in. Depth with Full Sheet Metal Back and Baffle 21-1/4 in. Depth with 25 in. High Falseback 21-1/4 in. Depth with 26 in. High Falseback 21-1/4 in. Depth with 27 in. High Falseback 21-1/4 in. Depth with 28 in. High Falseback 21-1/4 in. Depth with 29 in.
UV-SVN03_.book Page 8 Thursday, January 24, 2013 5:27 PM General Information Unit Description Options Unit Nameplate. The unit nameplate is located in the Field-Installed Controls (Option). The unit comes equipped with a fan speed switch, damper blade (only), and an optional low temperature detection. left hand end pocket, behind the control box. It includes the unit model number, serial number, electrical characteristics, and other pertinent unit data. Factory Shipment.
UV-SVN03_.book Page 9 Thursday, January 24, 2013 5:27 PM General Information Face and Bypass Actuator (Option). The face and bypass damper actuator incorporates a direct couple design. It provides electronic protection against overload. A limit switch is not included, nor required as part of the design. When reaching the damper end position, the actuator automatically stops. The gears can be manually disengaged with a button on the housing. Refer to Table 2, p.
UV-SVN03_.book Page 10 Thursday, January 24, 2013 5:27 PM ECM Application Notes The new Trane BLDC system has some notable differences to traditional designs. perform the function of a two 3-pole contactors. Figure 1. Sample arrangement: electric heat relay RPM Mode The motors are programmed from the factory to run in rpm mode and will not change rpm based on external static pressure, except at the performance limits of the motor/controller.
UV-SVN03_.book Page 11 Thursday, January 24, 2013 5:27 PM Dimensions and Weights Unit Location and Clearances Locate the unit in an indoor area. The ambient temperature surrounding the unit must not be less than 45°F. Do not locate the unit in areas subject to freezing. NOTICE: Equipment Damage! Do not locate the unit in areas subject to freezing. Pipes could burst at lower temperature resulting in equipment damage. Attention should be given to service clearance and technician safety.
UV-SVN03_.book Page 12 Thursday, January 24, 2013 5:27 PM Dimensions and Weights Figure 2. Standard depth unit (4)K.O. FOR PIPING OR ELECTRICAL A 16 5/8" 2 3/8" PIPE CHASE 5 3/4" 7/8" O.D. DRAIN CONN. 5" 30" 7/8" O.D. AUX. DRAIN CONN.
UV-SVN03_.book Page 13 Thursday, January 24, 2013 5:27 PM Dimensions and Weights Figure 3. Falseback unit 21 1/4" A 16 5/8" 2 3/8" (4)K.O. FOR PIPING OR ELECTRICAL 5 3/4" 7/8" O.D. DRAIN CONN. PIPE CHASE 7/8" O.D. 30" 30" AUX. DRAIN CONN.
UV-SVN03_.book Page 14 Thursday, January 24, 2013 5:27 PM Dimensions and Weights Figure 4. Dynamic air barrier unit (4)K.O. FOR PIPING OR ELECTRICAL 21 1/4" A 16 5/8" 2 3/8" PIPE CHASE 5 3/4" 5" 7/8" O.D. DRAIN CONN. 22 5/8" 30" 7/8" O.D. AUX. DRAIN CONN.
UV-SVN03_.book Page 15 Thursday, January 24, 2013 5:27 PM Dimensions and Weights Figure 5.
UV-SVN03_.book Page 16 Thursday, January 24, 2013 5:27 PM Dimensions and Weights Figure 6.
UV-SVN03_.book Page 17 Thursday, January 24, 2013 5:27 PM Dimensions and Weights Figure 7. Crossover piping 16 5/8" DEPTH UNIT 7/8" I.D. FIELD CONN. W/ SHUT 1 1/2" OFF VALVE FLUSH RETURN 3" SR SUPPLY 3 1/2" 4 1/2" 24" 19 3/8" TOP VIEW 3 5/8" 5 3/8" SIDE VIEW 21 1/4" DEPTH UNIT 7/8" I.D. FIELD CONN. W/ SHUT OFF VALVE FLUSH 1 1/4" RETURN 3" SUPPLY SR 24" 19 3/8" 3 1/2" 4 1/2" TOP VIEW 8 1/4" 10" SIDE VIEW Note: 1-3/8 in. OD and 2-1/8 in. ID crossover piping 1.
UV-SVN03_.book Page 18 Thursday, January 24, 2013 5:27 PM Receiving and Handling The unit ventilator is packaged in clear stretch wrap and protective cardboard. Note: Before unwrapping, make a visual inspection of the unit for any damage that may have occurred during shipping. All orders are shipped FOB (Freight on Board) from the factory, therefore any claims must be made with the delivering carrier. Following visual inspection, carefully begin the following procedures: 1.
UV-SVN03_.book Page 19 Thursday, January 24, 2013 5:27 PM Pre-Installation Jobsite Inspection Always perform the following checks before accepting a unit: 1. Verify that the nameplate data matches the data on the sales order and bill of lading (including electrical data). 2. Verify that the power supply complies with the unit nameplate specifications. 3. Visually inspect the exterior of the unit, for signs of shipping damage.
UV-SVN03_.book Page 20 Thursday, January 24, 2013 5:27 PM Installation—Mechanical Wall Box Installation The following instructions are general recommendations for installing wall intake boxes. Consult the architectural plans for specific requirements. Additional materials required to complete any specific installations (such as duct connections, metal mounting plates, or flanges) are not furnished by Trane. For best results, all air intake boxes should be removable from outside of the building.
UV-SVN03_.book Page 21 Thursday, January 24, 2013 5:27 PM Installation—Mechanical 4. Remove shipping bracket from the lower rear corners of the unit to separate the unit from the skid. Access to the screws holding the bracket to the skid is obtained inside the unit. 5. Rotate the fan wheels manually. The wheels should move freely and be in proper alignment. Visually inspect the fan area for obstructions or shipping damage. 6. Remove all applicable knockouts for coil piping and electrical connections. 5.
UV-SVN03_.book Page 22 Thursday, January 24, 2013 5:27 PM Installation—Mechanical Figure 11. Mounting hole location E C F C B B A 075 100 125 150 D Standard unit (no falseback) Standard falseback 29 in. stepdown falseback 28 in. stepdown falseback 27 in. stepdown falseback 26 in. stepdown falseback 25 in. stepdown falseback Standard unit (no falseback) Standard falseback 29 in. stepdown falseback 28 in. stepdown falseback 27 in. stepdown falseback 26 in. stepdown falseback 25 in.
UV-SVN03_.book Page 23 Thursday, January 24, 2013 5:27 PM Installation—Mechanical Figure 12. Subbase with leveling legs Unit Base Weld Nuts 2"- 6" Subbase For leveling legs 2. Set the unit on the subbase and fasten with four, 3/8 in. x 16 ft x 1 in. hex head cap screws and 3/8 in. lock washers. Note: Hex screws and lock washers are provided by the factory. They are located in a baggy and are used to attach the base to the unit ventilator.
UV-SVN03_.book Page 24 Thursday, January 24, 2013 5:27 PM Installation—Piping Piping Installation 6. Reconnect p-trap to the drain pan and replace clips to secure the pan to the fan deck. Before installation of piping package, the shipping bracket holding the piping in place, must be removed. 7. Proper installation of piping is necessary to provide efficient coil operation and to prevent damage during operation. Follow standard piping practices and include all accessories as necessary.
UV-SVN03_.book Page 25 Thursday, January 24, 2013 5:27 PM Installation—Piping the condensing unit installation and wiring manuals which are shipped with the condensing unit. Note: The ETL listing mark applied to a unit ventilator does not apply to any associated refrigerant condensing unit. Refrigerant Piping There are detailed methods for determining condensate load under various operating conditions. However, in most cases this is not necessary if the coils are piped as shown in Figure 13.
UV-SVN03_.book Page 26 Thursday, January 24, 2013 5:27 PM Installation—Piping Plumbing the Valve Figure 15. Steam piping: 2- and 3-way valves 2-way valve The valve may be plumbed in any angle but preferably not with the actuator below horizontal level of the body. Make sure there is enough room around the actuator for servicing or replacement.
UV-SVN03_.book Page 27 Thursday, January 24, 2013 5:27 PM Installation—Piping Wiring the Valve WARNING Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring! enough room to remove actuator cover for servicing. Mount the valve on the tube or pipe. Note: Ensure the flow through the valve is in the direction indicated by the arrow stamped on the valve body. Figure 20.
UV-SVN03_.book Page 28 Thursday, January 24, 2013 5:27 PM Installation—Piping Figure 22. Installing isolation valve Figure 23. Preparation for soldering 3. Sweat the joints, keeping outer surface free from solder. Note: Do not use silver solder due to high temperature requirements. 4. Install body valve into pipe. WARNING Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring! Improperly installed and grounded field wiring poses FIRE & ELECTROCUTION hazards.
UV-SVN03_.book Page 29 Thursday, January 24, 2013 5:27 PM Installation—Sensors Control Options Figure 28. Wall mtd display sensor (SP, OCC/UNOCC, COMM) Figure 24. Unit mtd temp sensor (SP, OCC/UNOCC, OALMH) (Electric heat with auto and off speeds) X13790886-04 (wall; 3-speed) X13790844-01 (unit) Figure 25. Unit mtd display sensor (SP, OCC/UNOCC, COMM) Figure 29. Wall mtd display sensor (SP, OCC/UNOCC, COMM) X13790886-03 (wall; 2-speed) X13790886-04 (unit; 3-speed) Figure 26.
UV-SVN03_.book Page 30 Thursday, January 24, 2013 5:27 PM Installation—Sensors Figure 32. Unit mtd FSS (OLH), wall mtd display temp sensor (SP, OCC/UNOCC, COMM) X13790886-03 (wall) X13790475-01 (unit) Installing Wall-Mounted Wired Sensors Reference the wall-mounted zone sensor dimensions in Figure 36, p. 30. Position the sensor on an inside wall three to five feet above the floor and at least 18 inches from the nearest outside wall.
UV-SVN03_.book Page 31 Thursday, January 24, 2013 5:27 PM Installation—Sensors • Areas that are close to heat sources such as sunlight, appliances, concealed pipes, chimneys, or other heatgenerating equipment • Airflow from adjacent zones or other units. • Unheated or uncooled spaces behind the controller, such as outside walls or unoccupied spaces.
UV-SVN03_.book Page 32 Thursday, January 24, 2013 5:27 PM Installation—Sensors b. Secure the back plate against the mounting surface using included hardware. Figure 38. 4. To install the zone sensor module to a standard junction box: a. Level and install a 2 x 4-in. junction box (installer supplied) vertically on the wall. b. Pull the control wires through the cutout. Attach the module to the wall using the screws provided. 5. Strip the insulation on the interconnection wires back 0.
UV-SVN03_.book Page 33 Thursday, January 24, 2013 5:27 PM Installation—Sensors Note: Do not use 000 as an address. An address of 000 removes all association knowledge, reverts the sensor to a low-power hibernation mode, and sends a disassociation request to the receiver. not have to remove the covers to access the rotary address switches. Note: Do not use 000 as an address. An address of 000 returns the receiver outputs to their factory defaults (zone temperature and setpoint outputs: 72.
UV-SVN03_.book Page 34 Thursday, January 24, 2013 5:27 PM Installation—Sensors 2. Verify that the sensor is set to the same address as the receiver it is to be associated with. Model WZS sensor 3. Power the sensor by removing the insulation strip from between the two batteries. LED1 LED2 LED3 LED5 Test button Association is automatically initiated between the sensor and the receiver. When LED3 on the receiver stops blinking, association has been established.
UV-SVN03_.book Page 35 Thursday, January 24, 2013 5:27 PM Installation—Sensors Model WDS sensor 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 below. Test button Push firmly, then release Configuring the Wireless Display Sensor (Model WDS only) Note: Sensors shipped with the fan-coil are preconfigured for three speeds.
UV-SVN03_.book Page 36 Thursday, January 24, 2013 5:27 PM Installation—Sensors Setting Temperature • Choose Fahrenheit or Celsius • Choose the degree resolution (whole degrees, half degrees, or tenths of degrees). Configuration Options . . . . . . Setpoint no setpoint single setpoint dual setpoint System no system options enabled Fan (Default) Note: Not all fan options are available for all systems.
UV-SVN03_.book Page 37 Thursday, January 24, 2013 5:27 PM Installation—Sensors Arrow indicates setpoint is shown on display Sensor Operations Temporary Occupancy (Timed Override) Temporary occupancy (timed override) is available on model WDS. Temporary occupancy is selected for afterbusiness-hours adjustment of temperature setting, fan settings, or heat/cool settings, when the system has changed to unoccupied mode. System control will revert to unoccupied after a pre-determined time period.
UV-SVN03_.book Page 38 Thursday, January 24, 2013 5:27 PM Installation—Sensors • The receiver conducts an energy scan for 20 seconds to determine the clearest channel on which to operate. • LED3 flashes On every 2 seconds when it is ready to accept a sensor association request. When an association request is made by a sensor, the receiver instructs the sensor on which power level to operate.
UV-SVN03_.book Page 39 Thursday, January 24, 2013 5:27 PM Installation—Sensors Changing Heating and Cooling Room Temperature Settings (applies to some systems) Some systems allow you to select both heating and cooling room temperature settings. If your system has this option, this symbol appears when you adjust the temperature setting. When you adjust the cooling setting, the top arrow and snowflake flash. When you adjust the heating setting, the bottom arrow and flame flash. 1.
UV-SVN03_.book Page 40 Thursday, January 24, 2013 5:27 PM Installation—Sensors Wireless Sensor Specifications The following table presents specifications for all models of the wireless sensor sets. Sensor operating temperature 32°F to 122°F Receiver operating temperature -40°F to 158°F Storage temperature -40°F to 185°F Storage and operating humidity 5% to 95%, non-condensing range Accuracy 0.5°F over a range of 55ºF to 85°F Resolution 0.125°F over a range of 60°F to 80°F 0.
UV-SVN03_.book Page 41 Thursday, January 24, 2013 5:27 PM Installation—Sensors The following table presents agency compliance information for wireless sensor set models as shown. United States compliance (all models) UL listed: UL 94-5VA Flammability rating UL 916: Energy management equipment FCC CFR47, Section 15.247 & Subpart E Digital Modulation Transmission with no SAR (FCC Identification TFP13651127) This device complies with Part 15 of the FCC Rules.
UV-SVN03_.book Page 42 Thursday, January 24, 2013 5:27 PM Installation—Electrical Wiring Motor data can be found in Table 5, p. 11. WARNING Electrocution and Fire Hazards with Improperly Installed and Grounded Field Wiring! Improperly 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 your local/state electrical codes.
UV-SVN03_.book Page 43 Thursday, January 24, 2013 5:27 PM Installation—Electrical and local requirements. Refer to the following table for the wire size range and maximum wiring distance for each device. Important: Do not bundle or run interconnection wiring in parallel with or in the same conduit with any high-voltage wires (110 V or greater). Exposure of interconnection wiring to high voltage wiring, inductive loads, or RF transmitters may cause radio frequency interference (RFI).
UV-SVN03_.book Page 44 Thursday, January 24, 2013 5:27 PM Installation—Electrical Split System Start-Up After all piping and wiring has been completed, follow the instructions provided with the condensing unit for control testing and system start-up. If sweat type field-piped systems are being used, then pressure testing, evacuation, and refrigerant charging will be required.
UV-SVN03_.book Page 45 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Overview • This section changes to vertical unit ventilator units, integrating new Trane Brushless DC motors and controllers. This exciting new series delivers outstanding comfort, safety, and performance with greatly reduced energy consumption compared to traditional units with permanent split capacitance AC motors. The new series of units will provide a long service life with proper installation and operation.
UV-SVN03_.book Page 46 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup • The engine integrates a versatile configurable auxiliary temperature sensor. CSTI Adapter Board • The engine incorporates various safety and lockout features, such as maintaining proper fan speeds, if electric heat is called for. Figure 45. CSTI adapter board 1 Standard Adapter Board Figure 44.
UV-SVN03_.book Page 47 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Installation and Initial Setup WARNING Hazardous Voltage w/Capacitors! Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized.
UV-SVN03_.book Page 48 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup • Wall-mounted low-voltage fan speed switch inputs to the adapter boards’ terminal strips and 24 Vac tap to field-installed fan speed switch. • Field-supplied controllers/thermostats to the adapter boards’ terminal strips and 24 Vac power tap to field-supplied controller/thermostat. • Adjustment and calibration of the variable speed inputs (VSP/0–10V) on the system.
UV-SVN03_.book Page 49 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Adjustment and Configuration of the Engine Board CSTI Adapter Board Field Connections Figure 47. 3 2 1 CSTI adapter board field connections 13 12 11 10 9 8 7 6 5 4 3 2 1 WARNING Safety Alert! You MUST follow all recommendations below. Failure to do so could result in death or serious injury. 1. VSP 10V 6. 2. VSP 0–10V 7. V1Op/Cooling 3. VSP DC COM 8. Not used 9. Not used 1. 24 Vac Y (hot) 10.
UV-SVN03_.book Page 50 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup The ECM engine board features a nested menu integrated user interface (UI) that supports: Figure 48. ECM engine label 1. Status display for instant touch-free confirmation of unit operation. 2. Configuration parameter and value display and modification changes (using integrated menu/set buttons). 3. Error code prioritized reporting. Status Display 1 Figure 49.
UV-SVN03_.book Page 51 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup RPM Mode RUNNING/ FAN STATUS CONTINUOUS LOOP Displayed when: 1) No error codes are present 2) Motor has completed ramping → → Indicates the current rpm of Motor 1 in the system. “0” rpm here indicate that no fan speed has been requested. Indicates the current rpm of Motor 2 in the system. “0” rpm here indicate a fan off condition OR a fan “missing” condition(a).
UV-SVN03_.book Page 52 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Configuration parameter and value display and modification changes Table 11. The ECM engine board’s on-board user interface is easy to use and supports: Button Duration Action Short Press in Status Display <1 sec None 1. Verification/auditing of on-board parameter settings (read-only) 2. Adjustment of the on-board settings (write) Figure 50.
UV-SVN03_.book Page 53 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Configuration Use Examples Example 1. To view the value of parameters without saving. In this case we wish to verify that the “Low Speed Value” for Motor 1 is set correctly to 800 rpm. We start with the ECM engine scrolling status display and proceed as follows: It would appear that the value has been changed, but if we check the value, we notice that the original value has been retained. Example 2.
UV-SVN03_.book Page 54 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Error Codes Displayed during abnormal operation. Indicates a locked rotor condition of Motor 1. The motor will be locked out until the cause has been resolved, and the power cycled; refer to refer to “Troubleshooting (ECM),” p. 105 for resolution details. Motor 2 will continue to operate, but will not be monitored. Fan Status function, if being used, will report an inoperative motor.
UV-SVN03_.book Page 55 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Initial Setup and Configuration After connections of power and hookup of customer installed controls/fan speed switches and under normal/ operative conditions the only adjustments needed to be made to the ECM engine board during commissioning of the unit are: • Adjustment and calibration of the variable speed inputs (VSP/0–10V) on the system, where applicable.
UV-SVN03_.book Page 56 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup comes standard with three to five field-accessible thermostatic inputs (with adjustable speed), so the use of the 0–10V inputs is optional. • All inputs are independently configurable and simultaneously accessible, and the ECM engine will choose the highest user (configured and requested) speed. However, care should be taken with customer controls to avoid contention of signals.
UV-SVN03_.book Page 57 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Use of Potentiometer/Rheostat For VSP Figure 51. Typical connection WARNING Hazardous Voltage w/Capacitors! Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized.
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UV-SVN03_.book Page 59 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup will perform the same as the parameter but will in addition, disable the heating function on electric heat and on the changeover coil heat if there are fan failures. The auxiliary heating coil valve will continue to respond to customer heating requests. changeover and electric heat lockout function may not work correctly unless the ECM engine board is configured to perform these functions.
UV-SVN03_.book Page 60 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup b. The input impedance of the thermistor circuit must be set correctly (the parameter should be set to for CSTI units). c. The temperature sensed is higher than the parameter. d. The parameter is higher than the parameter. e. The temperature is not in the dead-band between the parameter and the parameter (in this case, previous state will be retained). 4.
UV-SVN03_.book Page 61 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Configuration Settings of the ECM Engine Board WARNING 3. If the format setting for rpm values are not correct (i.e., not four-digit: XXXX), please check the operation mode of the ECM engine board and and motor signal output format and . Safety Alert! You MUST follow all recommendations below. Failure to do so could result in death or serious injury.
UV-SVN03_.book Page 62 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Table 13. Configuration settings of the ECM engine board Description on Unit Label Mtr 1 High Spd Mtr 1 Med Spd Mtr 1 Low Spd EHStg1 Mtr1 Spd EH Stg 2 Mtr 1 Spd User Interface Name Typical User Interface Value Notes: Description Sets the high-speed rpm for Motor 1. Sets the medium-speed rpm for Motor 1. Sets the low-speed rpm for Motor 1.
UV-SVN03_.book Page 63 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Table 13. Configuration settings of the ECM engine board (continued) Notes: User Interface Name Typical User Interface Value Mt2 Ovspd RPM Selects the rpm above which the Motor 2 will be assumed to be in an overspeed condition and will need to be shut down. This envelope protection value should not be altered.
UV-SVN03_.book Page 64 Thursday, January 24, 2013 5:27 PM ECM Overview and Setup Table 13. Configuration settings of the ECM engine board (continued) Description on Unit Label Protect Funct User Interface Name Typical User Interface Value Notes: Description These notes are provided for reference only, and the ECM engine label must be used as the ultimate guide for setting up an engine board on specific units.
UV-SVN03_.book Page 65 Thursday, January 24, 2013 5:27 PM Time Clock Setting the Time Clock Set the Time Format, Time, and Day The Time Clock must be programmed for the unit to operate. If not programmed, the unit may not run in the correct occupied/unoccupied state until timing instructions are received from the Time Clock. (Program to 24 hr or am/pm format.) Note: Power must be supplied to the unit for the time clock to be set.
UV-SVN03_.book Page 66 Thursday, January 24, 2013 5:27 PM Time Clock 2. The hour display begins to blink—use the + and/or buttons to select the desired setting and then press OK. • Press the +1h button (see Figure 57) to add 1 hour to the current time. Press the +1h button again to subtract 1 hour from the current time. 3. The minute display begins to blink—use + / - to select the desired setting and press OK. Figure 57. Daylight Savings Time 4.
UV-SVN03_.book Page 67 Thursday, January 24, 2013 5:27 PM Wired Controllers—Communication Wiring Wiring Installation (ZN520) Tracer ZN520 controllers are LonTalk® devices that interface with the Trane Tracer Summit building management system. Reference the unit wiring diagram or submittals. Ground shields at each Tracer ZN520, taping the opposite end of each shield to prevent any connection between the shield and anther ground.
UV-SVN03_.book Page 68 Thursday, January 24, 2013 5:27 PM Wired Controllers—Communication Wiring Wiring Overview Outline or part of the BACnet Device ID (refer to the illustration below). IMC General Instructions (p. 68) 24 VAC XFRM AO1 BI4 AO2 BI5 UI1 UI2 1 P1 BACnet MS/TP Link P2 LINK IMC TX RX SERVICE SERVICE TOOL 78 78 4 56 78 4 56 0 x10 9 1 BO1 BO2 BO3 BO4 BO5 BO6 BO7 BO8 BO9 3 0 x100 ADDRESS 9 1 4 56 1 23 9 Connection Wiring (p. 69) 23 Setting the Address (p.
UV-SVN03_.book Page 69 Thursday, January 24, 2013 5:27 PM Wired Controllers—Communication Wiring Note: The BACnet Device ID is displayed as the Software Device ID on the Tracer TU Controller Settings page in the Protocol group. Lin Link k1 2 Power Supply Please read all of the warnings, cautions, and notices below before proceeding with this section.
UV-SVN03_.book Page 70 Thursday, January 24, 2013 5:27 PM Wired Controllers—Communication Wiring Transformer Recommendations A 24Vac power supply must be used for proper operation of the binary inputs, which requires 24Vac detection. In addition, the spare 24Vac outputs may be used to power relays and TRIACS. • • . 24Vac transformer A pigtail connection may be necessary between earth ground and/or enclosure ground if the device is not grounded through one leg of the transformer wiring.
UV-SVN03_.book Page 71 Thursday, January 24, 2013 5:27 PM Pre-Start Pre-Start-up Checklist Before energizing the unit, the following system devices must be checked: Is the high voltage power supply correct and in accordance with the nameplate ratings? Is the field wiring and circuit protection the correct size? Is the low voltage control circuit wiring correct per the unit wiring diagram? Is the piping system clean/complete and correct? Is unit serviceable? (See “Dimensions and Weights,” p.
UV-SVN03_.book Page 72 Thursday, January 24, 2013 5:27 PM Startup Tracer ZN520 Unit Startup Refer to the most recent version of Trane publication CNTSVX04A-EN (Tracer ZN520 Unit Controller: Installation, Operation and Programming Guide). The factory preprograms the ZN520 with default values to control the temperature and unit airflow. Use Tracer Summit building automation system or Rover™ software to change the default values. Follow the procedure below to operate the ZN520 in a stand-alone operation: 1.
UV-SVN03_.book Page 73 Thursday, January 24, 2013 5:27 PM Startup speed (motor/energy/acoustics ) and valve position (pump energy, chilled water reset ). As the capacity requirement increases at low fan speed, the water valve opens. When the low fan speed capacity switch point is reached, the fan switches to medium speed and the water valve repositions to maintain an equivalent capacity. The reverse sequence takes place with a decrease in required capacity.
UV-SVN03_.book Page 74 Thursday, January 24, 2013 5:27 PM Startup does not affect the controller’s occupancy. When the communicated occupancy request is occupied, the controller uses the local occupancy binary input to switch between the occupied and occupied standby modes. During occupied standby mode, the controller’s economizer damper position goes to the economizer standby minimum position. The economizer standby minimum position can be changed using Rover service tool.
UV-SVN03_.book Page 75 Thursday, January 24, 2013 5:27 PM Startup The controller only cycles the fan off with heating and cooling capacity in the unoccupied mode. The economizer is used for cooling purposes whenever the outdoor temperature is below the economizer enable setpoint and there is a need for cooling. The economizer is used first to meet the space demand, and other forms of cooling are used if the economizer cannot meet the demand alone.
UV-SVN03_.book Page 76 Thursday, January 24, 2013 5:27 PM Startup controller. When both are present, the communicated request has priority over the hard-wired input. See Table 15, Table 16, and Table 17. Table 15. Local fan switch enabled (Tracer ZN520) Communicated Fan Speed Input Fan Switch (Local) Fan Operation Off Ignored Off Low Ignored Low Medium Ignored Medium High Ignored High Auto Off the local zone sensor module, a communicated request, or the default fan speed (off).
UV-SVN03_.book Page 77 Thursday, January 24, 2013 5:27 PM Startup time. Once this temperature stabilization period has expired, the controller compares the entering water temperature against the effective space temperature (either hard-wired or communicated) to determine whether the entering water can be used for the desired heating or cooling.
UV-SVN03_.book Page 78 Thursday, January 24, 2013 5:27 PM Startup without the existence of a building automation system. This applies to applications where multiple unit controllers share a single space temperature sensor (for rooms with multiple units but only one zone sensor) for both standalone (with communication wiring between units) and building automation system applications. For this application you will need to use the Rover service tool.
UV-SVN03_.book Page 79 Thursday, January 24, 2013 5:27 PM Startup Table 21. Analog inputs (Tracer ZN520) controller ignores the hard-wired space temperature input and uses the communicated value.
UV-SVN03_.book Page 80 Thursday, January 24, 2013 5:27 PM Startup disabled through configuration using the Rover service tool. If the zone sensor switch is disabled, the controller resorts to its stored configuration default fan speeds for heating and cooling, unless the controller receives a communicated fan input. When the fan switch is in the off position, the controller does not control any unit capacity. The unit remains powered and all outputs drive to the closed position.
UV-SVN03_.book Page 81 Thursday, January 24, 2013 5:27 PM Startup Occupied Mode (UC400) Timed Override Control (UC400) In Occupied Mode, the UC400 controller maintains the space temperature based on the occupied space temperature setpoint ± occupied offset. The controller uses the occupied mode as a default mode when other forms of occupancy request are not present and the fan runs continuously. The outdoor air damper, if present, will close when the fan is OFF.
UV-SVN03_.book Page 82 Thursday, January 24, 2013 5:27 PM Startup If the discharge air temperature falls below the discharge air temperature low limit setpoint, (configurable using the Tracer TU service tool), and the cooling capacity is at a minimum, the available heating capacity is used to raise the discharge air temperature to the low limit (refer to the following section, “Discharge Air Tempering (UC400).”).
UV-SVN03_.book Page 83 Thursday, January 24, 2013 5:27 PM Startup unit ventilators and blower coils) before changing to another speed. Initially running on high speed provides adequate torque to start the fan motor from the OFF position. Note: In occupied mode, the UC400 controller requires continuous fan operation because of cascade zone control. In unoccupied mode, the fan cycles.
UV-SVN03_.book Page 84 Thursday, January 24, 2013 5:27 PM Startup Modulating Valve Operation (UC400) The UC400 controller supports tri-state modulating valve control. Two binary outputs control each valve: one to drive the valve open and one to drive the valve closed. The stroke time for each valve is configurable using the Tracer TU service tool. The controller supports the following: speed fan operation. A controller can receive a BAScommunicated outdoor air damper minimum position.
UV-SVN03_.book Page 85 Thursday, January 24, 2013 5:27 PM Startup economizing. The modulating outdoor air damper provides the first source of cooling for the controller. The controller initiates economizing if the outdoor air temperature is below the economizer enable point (configurable using the Tracer TU service tool).
UV-SVN03_.book Page 86 Thursday, January 24, 2013 5:27 PM Startup the fan is running. The fan status is reported as OFF whenever the fan is not running. In addition, a fan status switch can be connected to binary input 5 (BI5) to monitor the status of the fan for belt-driven or direct-driven units (except Trane Macon factory ECM fan motor units).
UV-SVN03_.book Page 87 Thursday, January 24, 2013 5:27 PM Maintenance 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 disconnects before servicing.
UV-SVN03_.book Page 88 Thursday, January 24, 2013 5:27 PM Maintenance Figure 61. Removal of drain pan Table 25. Motor voltage 3 4 1 2 Unit voltage Motor voltage 115-60-1 115-60-1 208-60-1 208/230-60-1 230-60-1 208/230-60-1 208-60-3 208/230-60-1 460-60-3 277-60-1 277-60-1 277-60-1 230-60-3 208/230-60-1 If a replacement motor is required, it should be ordered from The Trane Company. To replace the fan motor, complete the following steps: Access to Fanboard & Motor.
UV-SVN03_.book Page 89 Thursday, January 24, 2013 5:27 PM Maintenance Modulating Valves. The valve should be serviced by a 3. Removed the coil’s solid steel front cover. trained, experienced technician. For detailed piping installation steps, see “Installation—Piping,” p. 24; for modulating valve removal steps, see “Modulating Water Valves (Option),” p. 25. 4. Vacuum the dust/particles from the coil face.
UV-SVN03_.book Page 90 Thursday, January 24, 2013 5:27 PM Diagnostics Troubleshooting Checklist If operating difficulties are encountered, refer to the following table for probable causes and corrective measures. If suggested corrective measures have been taken, and the trouble still persists, contact the control supplier or the local Trane Sales Office.
UV-SVN03_.book Page 91 Thursday, January 24, 2013 5:27 PM Diagnostics Problem Heating Cooling Cause Room too cool Room too cool Unit utilizes Wall Fin auxiliary radiation: Room too hot Motor Unit 265 and 460 volt unit X Correction X Room sensor is not properly set. Reset room sensor temperature. X Clogged filter. Replace filter. X Face and bypass damper, or coil valve is malfunctioning.
UV-SVN03_.book Page 92 Thursday, January 24, 2013 5:27 PM Diagnostics Translating Multiple Diagnostics (Tracer ZN520) The controller senses and records each diagnostic independently of other diagnostics. It is possible to have multiple diagnostics present simultaneously. The diagnostics are reported in the order they occur.
UV-SVN03_.book Page 93 Thursday, January 24, 2013 5:27 PM Diagnostics Using Trane’s Service Tool, Rover (Tracer ZN520) Rover, Trane’s service tool, can reset diagnostics present in the controller and troubleshoot the unit. For more information, refer to the Trane publication EMTX-SVX01G-EN (Rover Service Tool: Installation, Operation, and Programming Guide), or the most recent revision.
UV-SVN03_.book Page 94 Thursday, January 24, 2013 5:27 PM Diagnostics Table 31. Electric heat not operating (Tracer ZN520) Table 33. Fresh air damper stays closed (Tracer ZN520) Probable Cause Explanation Probable Cause Normal operation The controller cycles electric heat on and off to meet the unit capacity requirements. Normal operation Requested mode: off It is possible to communicate the operating mode (such as off, heat, cool) to the controller.
UV-SVN03_.book Page 95 Thursday, January 24, 2013 5:27 PM Diagnostics Output Testing and Diagnostics (UC400) shut down. Manual diagnostics can be cleared from the UC400 controller in one of the following ways: • By using the Tracer TU service tool to reset latching diagnostics on the Alarms Status tab or by temporarily overriding the Reset Diagnostic Request (bv/2) on the Binary Status tab. • Through a building automation system. • By cycling power to the controller.
UV-SVN03_.book Page 96 Thursday, January 24, 2013 5:27 PM Diagnostics Table 34. UC4000 diagnostics (continued) Diagnostic Type Diagnostic Probable Cause Consequences Space Invalid or missing temperature value for zone (a) failure temperature. Automatic • Discharge air temperature control runs • Unit shuts OFF if both space temperature and discharge air temperature fail Entering water temp failure Invalid or missing value for zone temperature.
UV-SVN03_.book Page 97 Thursday, January 24, 2013 5:27 PM Diagnostics Figure 66. LED, Test button, and symbol locations on the sensor Error codes appear on the display of the model WDS sensor when diagnostics occur (see Table 35). Table 35. Diagnostics on the sensor (wireless controls) Error code (WDS LED state when Test button is pressed (WZS sensor display) Indicates...
UV-SVN03_.book Page 98 Thursday, January 24, 2013 5:27 PM Diagnostics Table 37. Observing signal strength on the sensor (wireless controls) Symbol (WDS sensor LED state Indicates... User action (WZS sensors) display) LED1: Off LED2: Off LED3: Off No Test symbols Normal state appear • No Test button press. LED1: Off Press Test button on the LED2: Off LED3: Off sensor Associated; no communication with receiver • Associated, but no signal from the receiver after pressing Test button.
UV-SVN03_.book Page 99 Thursday, January 24, 2013 5:27 PM Diagnostics For more information on interpreting the LEDs and the display symbols that indicate signal strength, see “Testing Signal Strength (Wireless Controls),” p. 97. Replacing Sensor Batteries (Wireless Controls) Sensor battery type, length of life, and installation are addressed in this section. Battery Type (Wireless Controls) WARNING Prevent Injury! Keep away from small children.
UV-SVN03_.book Page 100 Thursday, January 24, 2013 5:27 PM Diagnostics • The receiver receives a disassociation notification from its associated sensor • The receiver does not receive a communication from its associated sensor within 50 minutes. • The sensor and receiver are associated and communicating at the time the sensor is set to 000 and the Test button is pressed. Note: A disassociated sensor will transit an association request every 10 minutes.
UV-SVN03_.book Page 101 Thursday, January 24, 2013 5:27 PM Diagnostics but the receiver determines the ultimate output power level of the sensor. Output Values—Failure and Default Modes of Operation (Wireless Controls) The following table provides output values for failure and default modes of operation, which can be used for troubleshooting. Table 41. Output values Situation Receiver address = 000 11.17 kΩ, 72.5°F (22.
UV-SVN03_.book Page 102 Thursday, January 24, 2013 5:27 PM Diagnostics Troubleshooting (Tracer ZN520) If the LED is off, either the power is off, an abnormal condition is present or the TEST button is pressed. Yellow COMM LED (Tracer ZN520) 1 If the LED is off continuously, the controller is not detecting any communication. This is normal for units in standalone applications. If the LED blinks, the controller detects communication. If the LED is on continuously, this indicates an abnormal condition.
UV-SVN03_.book Page 103 Thursday, January 24, 2013 5:27 PM Diagnostics two seconds.The green LED will begin to blink, indicating the controller is in test mode. Troubleshooting (UC400) Table 44. Test sequence for 1-heat/1-cool configurations (Tracer ZN520) Table 45 through Table 50, p. 105 provide troubleshooting information if encountering operational problems with the UC400 controller. Steps Fan BOP1-3 Cool Output BOP4(a) Heat Output BOP5 Damper BOP6 1.
UV-SVN03_.book Page 104 Thursday, January 24, 2013 5:27 PM Diagnostics Table 46. Valves remain closed (UC400) (continued) Probable Cause Explanation Unit configuration The controller must be properly configured based on the actual installed end devices and application. If the unit configuration does not match the actual end device, the valves may not work correctly. Random start observed Requested mode off Table 47.
UV-SVN03_.book Page 105 Thursday, January 24, 2013 5:27 PM Diagnostics Table 50. Outdoor air damper remains open Probable Cause Explanation Unit wiring The wiring between the controller outputs and the outdoor air damper must be present and correct for normal outdoor air damper operation. Refer to applicable wiring diagram. Failed end device Check damper actuator to ensure proper operation.
UV-SVN03_.book Page 106 Thursday, January 24, 2013 5:27 PM Diagnostics input 1 on the Tracer ZN controller (polarity sensitivity). • The mini-access lid on the front of the main control panel lid has the ECM engine troubleshooting/setup guide affixed to the back of the lid. This guide is unitspecific and should be consulted before determining the disposition of a unit. connections will cause malfunction and the system will shutdown.
UV-SVN03_.book Page 107 Thursday, January 24, 2013 5:27 PM Diagnostics 3. VSP Inputs (0–10V inputs) are of the wrong polarity – Verify that variable speed (VSP) inputs are properly wired to 1TB4. electronics will be damaged, and the motor will not be controllable. • Verify that the fan speed request is not below 450 rpm. Speeds below 450 rpm are not supported on the fancoil product. • Verify that the all binary inputs to the customer terminal blocks are of proper and consistent polarity.
UV-SVN03_.book Page 108 Thursday, January 24, 2013 5:27 PM Replacing ECM Components WARNING Hazardous Voltage w/Capacitors! NOTICE: Equipment Damage! Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized.
UV-SVN03_.book Page 109 Thursday, January 24, 2013 5:27 PM Replacing ECM Components Circuit Modules Replacement Notes/Work Instructions 1. Circuit modules are equipped with nylon standoffs which can either be removed by squeezing the barbs at the rear of the control panel, or squeezing the latch above the circuit module. If the latter method is chosen, the standoffs will be retained on the metal panel.
UV-SVN03_.book Page 110 Thursday, January 24, 2013 5:27 PM Replacing ECM Components Figure 70. 3. Once the light has been activated, click OK on the Softset Rotary Address - Expansion Module dialog box shown in Step 2. When you click OK, Tracer TU softsets the engine module IMC address to 99 and the light on the module will turn off. 4. Return to the Expansion Module Status box, click Discover and wait five to ten seconds for Tracer TU to refresh the screen.
UV-SVN03_.book Page 111 Thursday, January 24, 2013 5:27 PM Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.Trane.com.
