Installation and Maintenance Manual

ManualsBrandsTrane ManualsFan CoilsTrane Uni Fan Coil and Force-Flo

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. Improperly installed, adjusted or altered equipment by an unqualified person could

result in death or serious injury. When working on the equipment, observe all precautions in the literature

and on the tags, stickers, and labels that are attached to the equipment.

UniTrane™ Fan-Coil and Force-Flo™ Air Conditioners

200 to 1,200 cfm

April 2012 UNT-SVX07D-EN

Installation, Operation,

and Maintenance

Models FC and FF

“ZO” and later design sequence

Low vertical models FCKB and FCLB

“SO” and later design sequence

UNT-SVX07_-EN.book Page 1 Friday, April 27, 2012 9:40 AM

Summary of content (138 pages)

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UNT-SVX07_-EN.book Page 1 Friday, April 27, 2012 9:40 AM Installation, Operation, and Maintenance UniTrane™ Fan-Coil and Force-Flo™ Air Conditioners 200 to 1,200 cfm Models FC and FF “ZO” and later design sequence Low vertical models FCKB and FCLB “SO” and later design sequence SAFETY WARNING Only qualified personnel should install and service the equipment.
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UNT-SVX07_-EN.book Page 2 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 3 Friday, April 27, 2012 9:40 AM Warnings, Cautions and Notices Revision History The revision of this literature dated 27 Apr 2012 includes information for Tracer™ UC400 controls. Trademarks Force-Flo, Rover, Tracer, Tracer Summit, Trane, the Trane logo, and UniTrane are trademarks or registered trademarks of Trane in the United States and other countries. All trademarks referenced in this document are the trademarks of their respective owners.
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UNT-SVX07_-EN.book Page 4 Friday, April 27, 2012 9:40 AM Table of Contents Warnings, Cautions and Notices . . . . . . . . . . 2 Horizontal Units . . . . . . . . . . . . . . . . . . . . .42 Model Number Descriptions . . . . . . . . . . . . . . 6 Cabinet Units . . . . . . . . . . . . . . . . . . . . . . .42 General Information . . . . . . . . . . . . . . . . . . . . . 9 Recessed Units . . . . . . . . . . . . . . . . . . . . . .42 Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . .
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UNT-SVX07_-EN.book Page 5 Friday, April 27, 2012 9:40 AM Recommended Communication Wiring Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Wiring Installation (Tracer UC400) . . . . . . 73 Discharge Air Tempering (UC400) . . . . .100 Heating or Cooling Mode (UC400) . . . . .100 Wiring Overview Outline . . . . . . . . . . . . . 74 Entering Water Temperature Sampling Function (UC400) . . . . . . . . . . . . . . . . . . . . . . .101 General Instructions . . . . . . . . . . . . . .
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UNT-SVX07_-EN.book Page 6 Friday, April 27, 2012 9:40 AM Model Number Descriptions UniTrane Fan-Coil Digit 9 — Piping System/ Placement Following is a complete description of the fan-coil model number. Each digit in the model number has a corresponding code that identifies specific unit options. A = Drain Note: Not all options are available on all cabinet styles. Contact your local Trane sales representative for more information.
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UNT-SVX07_-EN.book Page 7 Friday, April 27, 2012 9:40 AM Model Number Descriptions Digits 21, 22, 23 — Electric Heat kW — ( ) = 208V Derate 000 = 010 = 015 = 020 = 025 = 030 = 040 = 050 = 060 = 070 = 080 = 100 = No Electric Heat 1.0 kW (0.75 kW) 1.5 kW (1.1 kW) 2.0 kW (1.5 kW) 2.5 kW (1.9 kW) 3.0 kW (2.3 kW) 4.0 kW (3.0 kW) 5.0 kW (3.8 kW) 6.0 kW (4.5 kW) 7.0 kW (5.3 kW) 8.0 kW (6.0 kW) 10.
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UNT-SVX07_-EN.book Page 9 Friday, April 27, 2012 9:40 AM General Information UniTrane fan-coil and Force-Flo units are intended for single zone applications. These units have load capabilities of 200 to 1200 cfm. See Figure 1 for unit components. Fan-coil units are available as two-pipe, with or without electric heat (one hydronic circuit) or four-pipe (two hydronic circuits). Force-Flo units feature two-pipe hydronic, electric heat only, or steam only.
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UNT-SVX07_-EN.book Page 10 Friday, April 27, 2012 9:40 AM Pre-Installation 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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UNT-SVX07_-EN.book Page 11 Friday, April 27, 2012 9:40 AM Pre-Installation is continuously pitched 1 inch per 10 feet of condensate line run to adequately drain condensate. 5. Wall & ceiling openings: Vertical recessed/concealed units require wall/ceiling openings. Refer to submittal for specific dimensions before attempting to install.
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UNT-SVX07_-EN.book Page 12 Friday, April 27, 2012 9:40 AM Dimensions and Weights Table 1. Fan-coil component data Unit Size 02 03 04 06 08 10 12 0.8 0.8 1.1 1.6 2.1 3.2 3.2 2-Row 15 x 1.7 x 8 15 x 1.7 x 8 20 x 1.7 x 8 29.5 x 1.7 x 8 38 x 1.7 x 8 57 x 1.7 x 8 57 x 1.7 x 8 3-Row 15 x 2.6 x 8 15 x 2.6 x 8 20 x 2.6 x 8 29.5 x 2.6 x 8 38 x 2.6 x 8 57 x 2.6 x 8 57 x 2.6 x 8 4-Row 15 x 3.5 x 8 15 x 3.5 x 8 20 x 3.5 x 8 29.5 x 3.5 x 8 38 x 3.5 x 8 57 x 3.5 x 8 57 x 3.
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UNT-SVX07_-EN.book Page 13 Friday, April 27, 2012 9:40 AM Dimensions and Weights Table 2. Low vertical fan-coil component data Unit Size 03 04 06 1.1 1.6 2.1 2-Row 20 x 1.7 x 8 29.5 x 1.7 x 8 38 x 1.7 x 8 3-Row 20 x 2.6 x 8 29.5 x 2.6 x 8 38 x 2.6 x 8 Coil Data Face Area — ft2 L x D x H — in. Volume — gal 1-Row (Heat) 0.08 0.11 0.14 2-Row 0.15 0.22 0.28 3-Row 0.23 0.33 0.
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UNT-SVX07_-EN.book Page 15 Friday, April 27, 2012 9:40 AM Dimensions and Weights Factory-Installed Piping Packages Auto Circuit Setter (C) Note: This figure shows piping package components and basic arrangement. It is not an accurate pictorial of what factory-installed piping packages look like.
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UNT-SVX07_-EN.book Page 16 Friday, April 27, 2012 9:40 AM Dimensions and Weights Vertical Concealed, Model A Vertical Concealed Unit Unit Size 200-300 400 600 800 No. of Fans 1 1 2 2 3 No.
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UNT-SVX07_-EN.book Page 17 Friday, April 27, 2012 9:40 AM Dimensions and Weights Vertical Cabinet, Model B Vertical Cabinet Unit Unit Size 200-300 400 600 800 No. of Fans 1 1 2 2 1000-1200 3 No.
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UNT-SVX07_-EN.book Page 18 Friday, April 27, 2012 9:40 AM Dimensions and Weights Horizontal Concealed, Model C Horizontal Concealed Unit Dimensions (in.) and Weights (lb) Unit Size 200-300 400 600 800 No. of Fans 1 1 2 2 3 No.
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UNT-SVX07_-EN.book Page 19 Friday, April 27, 2012 9:40 AM Dimensions and Weights Horizontal Cabinet, Model D Horizontal Cabinet Unit Unit Size 200-300 400 600 800 1000-1200 No. of Fans 1 1 2 2 3 No.
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UNT-SVX07_-EN.book Page 20 Friday, April 27, 2012 9:40 AM Dimensions and Weights Horizontal Recessed, Model E Horizontal Recessed Unit Unit Size 200-300 400 600 800 No. of Fans 1 1 2 2 3 No.
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UNT-SVX07_-EN.book Page 21 Friday, April 27, 2012 9:40 AM Dimensions and Weights Vertical Wall Hung Cabinet, Model F (Force-Flo Units Only) Vertical Wall Hung Cabinet Unit Unit Size 200-300 400 600 800 1000-1200 No. of Fans 1 1 2 2 3 No.
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UNT-SVX07_-EN.book Page 22 Friday, April 27, 2012 9:40 AM Dimensions and Weights Vertical Recessed, Model H Vertical Recessed Unit Unit Size 200-300 400 600 800 No. of Fans 1 1 2 2 3 No.
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UNT-SVX07_-EN.book Page 23 Friday, April 27, 2012 9:40 AM Dimensions and Weights Vertical Slope Top, Model J Vertical Slope Top Unit Unit Size 200-300 400 600 800 No. of Fans 1 1 2 2 1000-1200 3 No.
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UNT-SVX07_-EN.book Page 24 Friday, April 27, 2012 9:40 AM Dimensions and Weights Low Vertical Concealed, Model K Low Vertical Concealed Unit Dimensions (in.) and Weights (lb) Unit Size A 2-3/8" 06 59-7/16” B 26-1/4” 35-3/4” 44-1/4” 27-15/16” 36-13/16” 45-15/16” D 22-5/16” 31-13/16” 40-5/16” E 24-1/4” 339-3/4” 42-1/4” Operating Weight 109 139 147 Shipping Weight 96 123 131 12-1/2" 2-9/16" 1-1/16" 04 50-15/16” C 6-1/4" 12-1/4" 1-1/16" 3-3/8" 03 41-7/16” Notes: 1.
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UNT-SVX07_-EN.book Page 25 Friday, April 27, 2012 9:40 AM Dimensions and Weights Low Vertical Cabinet, Model L 10-15/16" 3-1/16" 10-15/16" 2-3/8" 4-7/16" 12-1/4" 12-1/2" 8-1/2" 3-7/8" 7-1/2" 9-13/16" 1-13/16" 1-13/16" 13-3/16" 2-11/16" 13-1/2" 3-1/4" 6-7/16" 11-5/16" 11-5/16" 1-15/16" 1-5/16" 14-1/2" 1-1/8" Low Vertical Cabinet Unit Dimensions (in.
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UNT-SVX07_-EN.book Page 26 Friday, April 27, 2012 9:40 AM Dimensions and Weights Inverted Vertical Cabinet, Model M (Force-Flo Units Only) Inverted Vertical Cabinet Unit Dimensions (in.
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UNT-SVX07_-EN.book Page 27 Friday, April 27, 2012 9:40 AM Dimensions and Weights Inverted Vertical Recessed, Model N (Force-Flo Units Only) Inverted Vertical Recessed Unit Dimensions (in.
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UNT-SVX07_-EN.book Page 34 Friday, April 27, 2012 9:40 AM Dimensions and Weights Wall Box Wall box dimensions Continuous Mortar Ribs Top and Bottom 1/8” 1/8” 1/2” Unit Size, Ref.
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UNT-SVX07_-EN.book Page 36 Friday, April 27, 2012 9:40 AM Installation—Mechanical Duct Connections Piping Considerations Install all air ducts according to National Fire Protection Association standards for the Installation of Air Conditioning and Ventilating Systems (NFPA 90A and 90B). Hydronic Coil Piping Before installing field piping to the coil, consider the following: • All coil connections are 5/8-inch O.D. (or 1/2-inch nominal) female copper connections.
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UNT-SVX07_-EN.book Page 37 Friday, April 27, 2012 9:40 AM Installation—Mechanical Water Piping Connections to Factory-Installed Piping Package Before installing water piping supply and return lines to factory piping package, note the following items. • All piping connections are 5/8-inch O.D. (1/2-inch nominal) female copper connections. • The fan-coil supply and return piping should not interfere with the auxiliary drain pan or condensate line. See “Condensate Drain,” p. 37 for more information.
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UNT-SVX07_-EN.book Page 38 Friday, April 27, 2012 9:40 AM Installation—Mechanical Automatic Changeover Sensor Two-pipe changeover units with either the Tracer ZN010, ZN510, ZN520, and UC400 and CSTI controls have an automatic changeover sensor that determines heating or cooling mode based on the supply water temperature. On units with a factory piping package, the factory straps the changeover sensor to the piping supply water pipe. See Figure 5, p. 38 and Figure 6, p. 38. Figure 5.
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UNT-SVX07_-EN.book Page 39 Friday, April 27, 2012 9:40 AM Installation—Mechanical 2. For units with manual air vents, back the set screw out to expel air from the unit and then re-tighten the set screw. Figure 10. Automatic circuit setter valve Figure 11. Automatic circuit setter valve The automatic air vent should require no adjustment for the coil to vent. However, if the coil does not vent immediately, unscrew the outer portion of the fitting to expel air from the port.
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UNT-SVX07_-EN.book Page 40 Friday, April 27, 2012 9:40 AM Installation—Mechanical 5. Adjust the circuit setter valve by turning the valve stem until the appropriate pressure drop is achieved. 6. After achieving the proper setting, slightly loosen the two socket head cap screws and rotate the memory stop around until it touches the back side of the indicator. Then tighten the screws to securely set the open memory position. The memory stop indicates the last set open position.
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UNT-SVX07_-EN.book Page 41 Friday, April 27, 2012 9:40 AM Installation—Mechanical Figure 13. Typical piping for steam coils Code of System Components in Piping Diagram FT Float and thermostatic steam trap BT Bucket steam trap GV Gate valve OV Automatic two-position (on-off) control valve TV Automatic three-way control valve VB Vacuum breaker CV Check valve ST Strainer AV Automatic or manual air vent Figure 14.
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UNT-SVX07_-EN.book Page 42 Friday, April 27, 2012 9:40 AM Installation—General Installing the Unit Follow the procedures below to install the unit properly. Refer to “Dimensions and Weights,” p. 12 for specific unit dimensions and mounting hole locations. Vertical Units NOTICE: Electrical Wiring! Do not allow electrical wire to fall between the unit and installation surface. Failure to comply may result in electrical shorts or difficulty accessing wires.
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UNT-SVX07_-EN.book Page 43 Friday, April 27, 2012 9:40 AM Installation—General 1. Insert the mounting bolts through the panel brackets of the trim ring and secure to the hanger holes on the unit. Tighten the mounting bolts to pull the trim ring snug against the finished ceiling. Figure 15. Installing the trim ring assembly on horizontal recessed units 2. Install the bottom panel by placing the hinged end on the trim ring hinged end (always at the unit’s return end). 3.
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UNT-SVX07_-EN.book Page 44 Friday, April 27, 2012 9:40 AM Installation—General Installation Checklist  7. The following checklist is only an abbreviated guide to the detailed installation procedures given in this manual. Use this list to ensure all necessary procedures are complete. For more detailed information, refer to the appropriate sections in this manual.  8. Install the auxiliary drain pan, if ordered, properly under piping package on fan-coil units.
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UNT-SVX07_-EN.book Page 45 Friday, April 27, 2012 9:40 AM Installation—Controls Control sensor options include both unit-mounted (factory-installed) and wall-mounted sensors. Installation instructions for the wall-mounted sensors are provided in this chapter.
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UNT-SVX07_-EN.book Page 46 Friday, April 27, 2012 9:40 AM Installation—Controls Wall-mounted wired display sensor with setpoint adjustment: Digit 30 = F, G, or J and Digit 31 = 4 Figure 16.
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UNT-SVX07_-EN.book Page 47 Friday, April 27, 2012 9:40 AM Installation—Controls • Metal barriers between the receiver and the sensor (for example, plastered walls with metal lathe or metal roof decks) • Thick, solid concrete walls between the receiver and the sensor • Placing the sensor inside metal enclosures Height Requirements It is recommended that you mount the back plate a maximum distance of 54 inches above the floor.
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UNT-SVX07_-EN.book Page 48 Friday, April 27, 2012 9:40 AM Installation—Controls 7. To replace the cover: a. Hook the cover over the top of the back plate. Apply light pressure to the bottom of the cover until it snaps in place. b. Install the security screw into the bottom of the cover (if desired). If installing a Tracer ZN510 or Tracer ZN520 zone sensor, see “Tracer ZN510, ZN520, and UC400 Options,” p. 45 for more information. Figure 17. Figure 18.
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UNT-SVX07_-EN.book Page 49 Friday, April 27, 2012 9:40 AM Installation—Electrical Unit Wiring Diagrams Specific unit wiring diagrams, based on unit options ordered, are provided inside each unit and can be easily removed for reference. Use these diagrams for connections or trouble analysis. Wiring diagrams are attached on the inside of the front panel of vertical cabinet and recessed models and on the fan and motor panel of vertical concealed and all horizontal models.
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UNT-SVX07_-EN.book Page 50 Friday, April 27, 2012 9:40 AM Installation—Electrical Recommendation: 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). In addition, improper separation may cause electrical noise problems.
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UNT-SVX07_-EN.book Page 51 Friday, April 27, 2012 9:40 AM Installation—Electrical Table 11. Table 10. Electric heat kW, low vertical fan-coil Unit Size Unit Voltage kW kW kW 3.0 115 1.0 1.5 2.0 kW 4.0 115 1.0 1.5 2.0 2.5 6.0 115 1.0 1.5 2.0 2.5 Unit Size 02 Force-Flo single-stage, max kW electric heat Voltage # Wires Heater kW Heater amps/ph 208/60/1 2 2.25 10.9 240/60/1 2 3.0 12.5 277/60/1 2 3.0 10.9 208/60/3 3 2.25 6.3 240/60/3 3 3.0 7.3 480/60/3 4 3.
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UNT-SVX07_-EN.book Page 52 Friday, April 27, 2012 9:40 AM Installation—Electrical Table 12. Force-Flo single stage, low kW electric heat Unit Size Voltage 02 208/60/1 2 240/60/1 2 03 04 06 08 10 12 # Wires amps /ph kW amps /ph 0.8 3.7 1.5 7.3 1.0 4.2 2.0 8.4 2.0 7.3 kW kW amps /ph Table 13. Force-Flo two-stage electric heat Unit Size 02 Voltage # Wires 1st Stage kW 208/60/1 2 0.8 2.3 10.9 240/60/1 2 1.0 3.0 12.5 Total kW Total amps/ph 277/60/1 2 1.0 3.
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UNT-SVX07_-EN.book Page 53 Friday, April 27, 2012 9:40 AM ECM Overview and Setup Overview Trane BLDC Motor This addendum addresses changes to UniTrane Fan-Coil and Cabinet Heater 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. Figure 20.
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UNT-SVX07_-EN.book Page 54 Friday, April 27, 2012 9:40 AM ECM Overview and Setup ECM Engine Controller Figure 21.
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UNT-SVX07_-EN.book Page 55 Friday, April 27, 2012 9:40 AM ECM Overview and Setup – Standard thermostats put out only “on” signals, however customer may select a normally open valve. A selectable switch allows the customer to invert the thermostat outputs for correct operation. These switches are set at the factory, but can be adjusted in the field.
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UNT-SVX07_-EN.book Page 56 Friday, April 27, 2012 9:40 AM 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. WARNING Safety Alert! • 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.
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UNT-SVX07_-EN.book Page 57 Friday, April 27, 2012 9:40 AM ECM Overview and Setup an external potentiometer or rheostat. The 10 Vdc supply supports up to 10 mA draw. TB3 (right five positions) is normally used to provide 24V hookup to a wall mounted fan speed switch, and to accept the returns from the switch for High, Medium, and Low requests. TB4 (left three positions) is normally used to control the system with a 0–10 Vdc output from a thermostat/ controller, or a fan control rheostat/potentiometer.
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UNT-SVX07_-EN.book Page 58 Friday, April 27, 2012 9:40 AM ECM Overview and Setup The ECM engine board features a nested menu integrated user interface (UI) that supports: Figure 26. 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 27.
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UNT-SVX07_-EN.book Page 59 Friday, April 27, 2012 9:40 AM 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).
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UNT-SVX07_-EN.book Page 60 Friday, April 27, 2012 9:40 AM ECM Overview and Setup Configuration parameter and value display and modification changes Table 16. Button actuation levels 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 28.
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UNT-SVX07_-EN.book Page 61 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 62 Friday, April 27, 2012 9:40 AM 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 “Troubleshooting (ECM),” p. 126 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.
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UNT-SVX07_-EN.book Page 63 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 64 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 65 Friday, April 27, 2012 9:40 AM ECM Overview and Setup Use of Potentiometer/Rheostat For VSP Figure 29. 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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UNT-SVX07_-EN.book Page 67 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 68 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 69 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 70 Friday, April 27, 2012 9:40 AM ECM Overview and Setup Table 18. 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.
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UNT-SVX07_-EN.book Page 71 Friday, April 27, 2012 9:40 AM ECM Overview and Setup Table 18. 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.
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UNT-SVX07_-EN.book Page 72 Friday, April 27, 2012 9:40 AM ECM Overview and Setup Table 18. 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.
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UNT-SVX07_-EN.book Page 73 Friday, April 27, 2012 9:40 AM Wired Controllers—Communication Wiring Wiring Installation (ZN510 and ZN520) Tracer ZN510 and 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 ZN510 and ZN520, taping the opposite end of each shield to prevent any connection between the shield and anther ground.
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UNT-SVX07_-EN.book Page 74 Friday, April 27, 2012 9:40 AM Wired Controllers—Communication Wiring Wiring Overview Outline or part of the BACnet Device ID (refer to the illustration below). IMC General Instructions (p. 74) 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 78 4 56 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. 75) 23 Setting the Address (p.
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UNT-SVX07_-EN.book Page 75 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 76 Friday, April 27, 2012 9:40 AM 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.
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UNT-SVX07_-EN.book Page 77 Friday, April 27, 2012 9:40 AM Wireless Sensors Wireless Sensors Note: Receivers ship installed on the unit. To remove the receiver, press in the retention tabs on the underside of the receiver enclosure (see Figure 32) and push upward. Note: For more detailed information for wireless sensors, please see BAS-SVX04E-EN Figure 32. Retention tabs on underside of receiver enclosure Note: Do not use 000 as an address.
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UNT-SVX07_-EN.book Page 78 Friday, April 27, 2012 9:40 AM Wireless 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. 2. Verify that the sensor is set to the same address as the receiver it is to be associated with. 3. Power the sensor by removing the insulation strip from between the two batteries. 3.
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UNT-SVX07_-EN.book Page 79 Friday, April 27, 2012 9:40 AM Wireless Sensors Model WDS sensor Model WZS sensor LED1 LED2 LED3 LED5 Test button Test button Push firmly, then release Push firmly, then release Configuring the Wireless Display Sensor (Model WDS only) Note: Sensors shipped with the fan-coil are preconfigured for three speeds.
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UNT-SVX07_-EN.book Page 80 Friday, April 27, 2012 9:40 AM Wireless Sensors 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. 2. Press the center button on the keypad to begin the configuration process. Center button 3. Configure the sensor options in the order shown in the table. • Press or illustrated). • Press or illustrated).
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UNT-SVX07_-EN.book Page 81 Friday, April 27, 2012 9:40 AM Wireless 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.
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UNT-SVX07_-EN.book Page 82 Friday, April 27, 2012 9:40 AM Wireless 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.
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UNT-SVX07_-EN.book Page 83 Friday, April 27, 2012 9:40 AM Wireless 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.
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UNT-SVX07_-EN.book Page 84 Friday, April 27, 2012 9:40 AM Wireless Sensors 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. Press or to select the heating/ cooling setting.
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UNT-SVX07_-EN.book Page 85 Friday, April 27, 2012 9:40 AM Wireless Sensors Wireless Sensor Specifications Testing Signal Strength Indicates excellent signal strength Indicates satisfacto ry signal strength Indicate s poor signal strength Press the Test button to display the signal strength symbols. Indicates 50% of battery life left.
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UNT-SVX07_-EN.book Page 86 Friday, April 27, 2012 9:40 AM Wireless 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.
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UNT-SVX07_-EN.book Page 87 Friday, April 27, 2012 9:40 AM Pre-Start Pre-Startup Checklist Unit Piping Complete this checklist after installing the unit to verify all recommended installation procedures are complete before unit startup. This does not replace the detailed instructions in the appropriate sections of this manual. Disconnect electrical power before performing this checklist. Always read the entire section carefully to become familiar with the procedures. 1.
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UNT-SVX07_-EN.book Page 88 Friday, April 27, 2012 9:40 AM Startup Tracer ZN510 and ZN520 Unit Startup Refer to the Trane publication, CNT-IOP-1 (ComfortLink 10 Controller: Installation, Operation and Programming Guide) for Tracer ZN510 and CNT-SVX04A-EN for Tracer ZN520. The factory pre-programs the Tracer ZN510 and 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.
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UNT-SVX07_-EN.book Page 89 Friday, April 27, 2012 9:40 AM Startup Fan Mode Switch Operation UC400 Controller Operation Off Off Fan is turned off, two-position damper option springreturns closed. Fan is off; control valve options and fresh air damper options close. The low air temperature detection option is still active. Hi, Med, Lo Fan runs continuously at the selected speed. The twoposition damper option opens to an adjustable mechanical stop position.
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UNT-SVX07_-EN.book Page 90 Friday, April 27, 2012 9:40 AM Startup If the correct water temperature is available, the unit begins normal heating or cooling operation. If the measured entering water temperature is too low or high, the controller closes the valve and waits 60 minutes before attempting to sample the entering water. Refer to Table 19. Table 19.
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UNT-SVX07_-EN.book Page 91 Friday, April 27, 2012 9:40 AM Startup Zone Sensors (Tracer ZN010 and ZN510) The zone sensors available with the Tracer ZN010 and ZN510 provide up to three different inputs Table 24. Valid operating range and factory default setpoints Setpoint/parameter Default Setting Valid Operating Range 1. Space temperature measurement (10 KΩ thermistor) Unoccupied cooling setpoint 85°F 40°F to 115°F 2.
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UNT-SVX07_-EN.book Page 92 Friday, April 27, 2012 9:40 AM Startup Tracer ZN520 Sequence of Operation The Tracer ZN520 operates the fan in the following modes: 1. occupied 2. unoccupied 3. occupied standby 4. occupied bypass 5.
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UNT-SVX07_-EN.book Page 93 Friday, April 27, 2012 9:40 AM Startup Tracer Summit with Supply Fan Control (Tracer ZN520) The controller only cycles the fan off with heating and cooling capacity in the unoccupied mode. If the unit is communicating with Tracer Summit and the supply fan control programming point is configured for Tracer (the factory configures as local), Tracer Summit will control the fan regardless of the fan mode switch position.
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UNT-SVX07_-EN.book Page 94 Friday, April 27, 2012 9:40 AM Startup longer. At 100 percent capacity, the heating valve is fully open (modulating valves) or on continuously (twoposition valves). controller. When both are present, the communicated request has priority over the hard-wired input. See Table 26, Table 27, and Table 28.
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UNT-SVX07_-EN.book Page 95 Friday, April 27, 2012 9:40 AM Startup the local zone sensor module, a communicated request, or the default fan speed (off). If both a zone sensor module and communicated request exist, the communicated request has priority. Fan Cycling Operation (Tracer ZN520) Tracer ZN520 does not support fan cycling in occupied mode. The fan cycles between high speed and off in the unoccupied mode only.
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UNT-SVX07_-EN.book Page 96 Friday, April 27, 2012 9:40 AM Startup the economizer enable setpoint (absolute dry bulb), the controller modulates the outdoor air damper (between the active minimum damper position and 100 percent) to control the amount of outdoor air cooling capacity.
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UNT-SVX07_-EN.book Page 97 Friday, April 27, 2012 9:40 AM Startup Binary Outputs (Tracer ZN520) Binary outputs are configured to support the following: • Three fan stages (when one or two fan stages are present, medium fan speed can be configured as exhaust fan) • One hydronic cooling stage • One hydronic heating stage (dehumidification requires this to be in the reheat position) Table 32.
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UNT-SVX07_-EN.book Page 98 Friday, April 27, 2012 9:40 AM Startup controller ignores the hard-wired space temperature input and uses the communicated value. External Setpoint Adjustment (Tracer ZN520) Zone sensors with an external setpoint adjustment (1kΩ) provide the Tracer ZN520 controller with a local setpoint (50°F to 85°F or 10°C to 29.4°C). The external setpoint is exposed on the zone sensor’s front cover.
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UNT-SVX07_-EN.book Page 99 Friday, April 27, 2012 9:40 AM Startup UC400 Sequence of Operation The UC400 controller will operate to maintain the space temperature setpoint. This section provides information about sequence of operations. Power-up Sequence (UC400) When 24Vac power is initially applied to the UC400 controller, the following sequence occurs: 1. The Power Marquee LED turns on as red, then flashes green, and then turns a solid green. 2.
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UNT-SVX07_-EN.book Page 100 Friday, April 27, 2012 9:40 AM Startup Timed Override Control (UC400) If the UC400 controller has a timed override option (ON/CANCEL buttons), pushing the ON button initiates a timed override on request. A timed override on request changes the occupancy mode from unoccupied mode to occupied bypass mode. In occupied bypass mode, the controller controls the space temperature based on the occupied heating or cooling setpoints.
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UNT-SVX07_-EN.book Page 101 Friday, April 27, 2012 9:40 AM Startup In heating or cooling mode, the controller maintains the zone temperature based on the active heating setpoint and the active cooling setpoint, respectively. The active heating and cooling setpoints are determined by the occupancy mode of the controller. For 2-pipe and 4-pipe changeover units, normal heat/cool operation will not begin until the ability to conduct the desired heating or cooling operation is verified.
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UNT-SVX07_-EN.book Page 102 Friday, April 27, 2012 9:40 AM Startup section, “Manual Fan Speed Control (UC400)”). Modulating Valve Operation (UC400) AUTO Fan Operation; ECM Acoustical Mode (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.
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UNT-SVX07_-EN.book Page 103 Friday, April 27, 2012 9:40 AM Startup speed fan operation. A controller can receive a BAScommunicated outdoor air damper minimum position. A BAS-communicated minimum position setpoint has priority over all locally configured setpoints. When a communicated minimum position setpoint is not present, the controller uses the configured minimum position for low fan speed whenever the fan is running at low speed, regardless of the occupancy state.
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UNT-SVX07_-EN.book Page 104 Friday, April 27, 2012 9:40 AM Startup • The heating capacity is located in the reheat position Fan Status (UC400) • The space relative humidity is valid In 1-, 2- and 3-speed fans, the status is based on the statuses of the supply fan output multistate and analog points dedicated to fan control. The fan status is reported as HIGH, MEDIUM, LOW, and as a percentage, whenever the fan is running. The fan status is reported as OFF whenever the fan is not running.
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UNT-SVX07_-EN.book Page 105 Friday, April 27, 2012 9:40 AM Startup begins accumulating fan run time again. The diagnostics can be cleared and the filter timer reset by temporarily overriding the Filter Timer Reset Request on the Binary Status page or by using the reset button on the Alarms page in Tracer TU. Freeze Avoidance (UC400) Freeze avoidance is used for low ambient temperature protection. It is initiated only when the fan is OFF.
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UNT-SVX07_-EN.book Page 106 Friday, April 27, 2012 9:40 AM Maintenance Maintenance Procedures Perform the following maintenance procedures to ensure proper unit operation. 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.
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UNT-SVX07_-EN.book Page 107 Friday, April 27, 2012 9:40 AM Maintenance Main Drain Pan See Figure 38 to replace main drain correctly. Figure 38. When replacing the fan-coil’s main drain pan, install it correctly under the z-bar. Figure 40. To remove the main drain pan on horizontal fan-coil units, peel the insulation from the edges of the pan’s underside to access the mounting screws. Mounting Screw Coil Side Main Drain Z-Bar Vertical Units.
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UNT-SVX07_-EN.book Page 108 Friday, April 27, 2012 9:40 AM Maintenance is dependent upon system operating hours, filter maintenance, and efficiency and dirt load. Follow the suggested methods in the following paragraphs. Steam and Hydronic Coil Cleaning Procedure 1. Disconnect all electrical power to the unit. 2. Don the appropriate personal protective equipment (PPE). 3. Access both sides of the coil. 4. Use a soft brush to remove loose debris from both sides of the coil. 5.
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UNT-SVX07_-EN.book Page 109 Friday, April 27, 2012 9:40 AM Maintenance Vertical Units Routing Motor and Crossover Harnesses Notes: • In vertical units, wiring to the motor transitions from the control panel onto a trough onto the fan board. • The motor harnesses are routed through holes at the motor location below the fan board and into the motors with a latching multi-plug.
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UNT-SVX07_-EN.book Page 110 Friday, April 27, 2012 9:40 AM Maintenance Figure 41. Motor attachment screws (located behind motor) 2. Remove drain pan and drain pan support (vertical units) or remove drain pan (horizontal units). 3. Free the motor and crossover harnesses from the fan board, either by unplugging from the motors and valves and threading backwards, or by unplugging the motor plug from the adapter boards. 4. Remove the fan board attachment screws and carefully lower/slide out fan board. 5.
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UNT-SVX07_-EN.book Page 111 Friday, April 27, 2012 9:40 AM Maintenance 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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UNT-SVX07_-EN.book Page 112 Friday, April 27, 2012 9:40 AM Diagnostics Output Testing and Diagnostics (Tracer ZN520) Table 36.
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UNT-SVX07_-EN.book Page 113 Friday, April 27, 2012 9:40 AM Diagnostics Note: The automatic diagnostic reset function does not operate during the manual output test sequence. Diagnostic Reset (Tracer ZN520) If a special diagnostic occurs within 24 hours after an automatic diagnostic reset, the controller must be manually reset. Other possible methods of resetting diagnostics are described in the sections that follow.
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UNT-SVX07_-EN.book Page 114 Friday, April 27, 2012 9:40 AM Diagnostics Table 39. Valves stay closed (Tracer ZN520) Table 41. Electric heat not operating (Tracer ZN520) Probable Cause Explanation Probable Cause Explanation Normal operation The controller opens and closes the valves to meet the unit capacity requirements. Normal operation The controller cycles electric heat on and off to meet the unit capacity requirements.
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UNT-SVX07_-EN.book Page 115 Friday, April 27, 2012 9:40 AM Diagnostics Table 43. Fresh air damper stays closed (Tracer ZN520) Probable Cause Explanation Normal operation The controller opens and closes the fresh air damper based on the controller’s occupancy mode and fan status. Normally, the fresh air damper is open during occupied mode when the fan is running and closed during unoccupied mode.
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UNT-SVX07_-EN.book Page 116 Friday, April 27, 2012 9:40 AM Diagnostics Manual (Latching) Diagnostics (UC400). Manual Table 44. UC4000 diagnostics (continued) diagnostics (also referred to as latching) cause the unit to shut down. Manual diagnostics can be cleared from the UC400 controller in one of the following ways: Diagnostic Probable Cause Consequences Space Invalid or missing temperature value for zone (a) failure temperature.
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UNT-SVX07_-EN.book Page 117 Friday, April 27, 2012 9:40 AM Diagnostics Troubleshooting (Wireless Controls) Figure 43. LED, Test button, and symbol locations on the sensor Locations of LEDs, Test button, Test Symbols, and Error Codes The receiver for all models has four LEDs: LED1, LED2, LED3, and LED5. Figure 42 shows their locations. Note: To view LEDs on a flush mount receiver on a fancoil unit, the front panel of the unit must be removed. Figure 42.
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UNT-SVX07_-EN.book Page 118 Friday, April 27, 2012 9:40 AM Diagnostics Error codes appear on the display of the model WDS sensor when diagnostics occur (see Table 45). Table 45. Diagnostics on the sensor (wireless controls) Error code (WDS LED state when Test button is pressed (WZS sensor display) Indicates... sensor) N/A E0, E5, E7 Sensor failure • Replace sensor LED1: Off LED2: Off LED3(a): 1-blink pattern repeated 3 times E1 Disassociated • Sensor is not associated with a receiver.
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UNT-SVX07_-EN.book Page 119 Friday, April 27, 2012 9:40 AM Diagnostics LED3 on model WZS, and on the display on model WDS (Figure 43, p. 117). shown in Table 49, p. 119. • On model WDS, push the Test button on the sensor (see location on Figure 43, p. 117). In response, a battery test symbol appears on the display. The symbol shown indicates battery life expectancy (see Table 50). Table 49.
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UNT-SVX07_-EN.book Page 120 Friday, April 27, 2012 9:40 AM Diagnostics • The receiver address is changed from its current setting (001–999) Prevent Injury! • Keep away from small children. If swallowed, contact your local poison control center immediately. The receiver receives a disassociation notification from its associated sensor • The receiver does not receive a communication from its associated sensor within 50 minutes. 6. Observe the polarity indicators that are molded into the cover.
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UNT-SVX07_-EN.book Page 121 Friday, April 27, 2012 9:40 AM Diagnostics • The Test button on the sensor • The address test mode on the receiver • A common volt-ohm meter operation and agency requirements per country or region. The sensor has a default maximum power level of 10 mW, but the receiver determines the ultimate output power level of the sensor.
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UNT-SVX07_-EN.book Page 122 Friday, April 27, 2012 9:40 AM Diagnostics Troubleshooting (Tracer ZN520) given in Table 53, p. 122. Note: The output circuits are not electrically powered; consequently, resistance can be measured without risk of damage to the volt-ohm meter. 1 Table 52. Receiver resistance table for all models (wireless controls) Zone or setpoint temperature Nominal setpoint and heating Nominal zone temperature output setpoint output resistance resistance 55°F (12.8°C) 17.
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UNT-SVX07_-EN.book Page 123 Friday, April 27, 2012 9:40 AM Diagnostics 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) If the LED is off continuously, the controller is not detecting any communication. This is normal for units in standalone applications. hold the TEST button (turning off the green LED) for at least two seconds.The green LED will begin to blink, indicating the controller is in test mode. Table 54.
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UNT-SVX07_-EN.book Page 124 Friday, April 27, 2012 9:40 AM Diagnostics Troubleshooting (UC400) Table 55 through Table 60, p. 125 provide troubleshooting information if encountering operational problems with the UC400 controller. Table 55. Fan does not energize (UC400) Probable Cause Explanation Unit wiring The wiring between the controller outputs and the fan relays and contacts must be present and correct for normal fan operation. Refer to applicable wiring diagram.
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UNT-SVX07_-EN.book Page 125 Friday, April 27, 2012 9:40 AM Diagnostics Table 58. DX or electric heat does not energize (UC400) Table 60. Outdoor air damper remains open Probable Cause Probable Cause Explanation Explanation Unit wiring The wiring between the controller outputs and the end devices must be present and correct for normal operation. Refer to applicable wiring diagram.
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UNT-SVX07_-EN.book Page 126 Friday, April 27, 2012 9:40 AM Diagnostics Troubleshooting (ECM) 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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UNT-SVX07_-EN.book Page 127 Friday, April 27, 2012 9:40 AM Diagnostics connections will cause malfunction and the system will shutdown. • • Do not unplug or plug-in motors or connectors while the system is receiving a speed request of any kind. The system must be powered down before plugging or un-plugging connections to the adapter boards, engine boards or motors. Failure do so will register diagnostics or cause unsafe operation and reduction in the contact life of the connectors.
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UNT-SVX07_-EN.book Page 128 Friday, April 27, 2012 9:40 AM Diagnostics • Verify that the voltage jumper on the motor plug harness is absent for 208-230V units and 277V units. If the jumper is present for these units, the motor 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.
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UNT-SVX07_-EN.book Page 129 Friday, April 27, 2012 9:40 AM Replacing ECM Components 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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UNT-SVX07_-EN.book Page 130 Friday, April 27, 2012 9:40 AM Replacing ECM Components • Before assuming that any of the boards or components in the new system have failed, please ensure that the ECM engine board has been configured correctly and that the switches on the CSTI board (where applicable) are set correctly. • It is necessary to configure the service replacement ECM engine board before commissioning the unit.
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UNT-SVX07_-EN.book Page 131 Friday, April 27, 2012 9:40 AM Replacing ECM Components 5. Ensure that the CSTI adapter board switches are set correctly, as indicated on the attached unit schematic (where applicable). Figure 46. 6. After replacing modules, commission the unit by performing at a minimum, “Fan Speed Response Verification,” p. 72.
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UNT-SVX07_-EN.book Page 132 Friday, April 27, 2012 9:40 AM 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 47. 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.
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UNT-SVX07_-EN.book Page 133 Friday, April 27, 2012 9:40 AM Wiring Diagrams Figure 48.
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UNT-SVX07_-EN.book Page 134 Friday, April 27, 2012 9:40 AM Wiring Diagrams Figure 49.
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UNT-SVX07_-EN.book Page 135 Friday, April 27, 2012 9:40 AM Wiring Diagrams Figure 50.
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UNT-SVX07_-EN.book Page 136 Friday, April 27, 2012 9:40 AM Wiring Diagrams Figure 51.
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UNT-SVX07_-EN.book Page 137 Friday, April 27, 2012 9:40 AM Wiring Diagrams Figure 52.
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UNT-SVX07_-EN.book Page 138 Friday, April 27, 2012 9:40 AM 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.