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Trane UniTrane Installation, Operation And Maintenance Instructions

Trane UniTrane Installation, Operation And Maintenance Instructions

Fan-coil and air conditioners
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See also: Installation, Operation & Maintenance Manual
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
UNT-SVX07B-EN
July 2010

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  • Page 1 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 UNT-SVX07B-EN July 2010...
  • Page 2 CFCs such as HCFCs and HFCs. Responsible Refrigerant Practices! Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures.
  • Page 3 Failure to follow code could result in death or serious injury. Trademarks Force-Flo, Trane, the Trane logo, and UniTrane are trademarks of Trane in the United States and other countries. All trademarks referenced in this document are the trademarks of their respective owners.

  • Page 4: Table Of Contents

    Table of Contents Model Number Descriptions ..........7 General Information .
  • Page 5 Installation—Controls ..........52 General Information .
  • Page 6 Binary Outputs ..........87 Tracer ZN520 Sequence of Operation .

  • Page 7: Model Number Descriptions

    Model Number Descriptions Digit 9 — Piping System/ Digit 15 — Color Each UniTrane fan-coil and Force-Flo Placement No Paint (Concealed Units Only) cabinet heater has a multiple charac- Deluxe Beige No piping, RH, No Auxiliary Drain ter model number unique to that par- Soft Dove ticular unit.
  • Page 8 Model Number Descriptions Digits 21, 22, 23 — Electric Heat Digit 27 — Main Control Valve Digit 29 — Piping Packages kW — ( ) = 208 V Derate None None 2-Way, 2-Position, NO (30 psig) Basic Ball Valve Supply and 000 = No Electric Heat 3-Way, 2-Position, NO (28 psig)
  • Page 9 Model Number Descriptions Digit 36 — Control Function #4 Digit 44 — Wall Boxes None None Low Temperature Detection Anodized Wall Box Digits 37, 38 — Future Control Functions Digit 39 — Projection Panels and Falsebacks None 5/8” Standard Recessed Panel (Vertical Recessed Units Only) 2”...

  • Page 10: General Information

    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).

  • Page 11: Pre-Installation

    Shipping Package UniTrane fan-coil and Force-Flo cabinet heaters ship in individual cartons for handling and storage ease. Each carton has tagging information such as the model number, sales order number, serial number, unit size, piping connections, and unit style to help properly locate the unit in the floor plan.

  • Page 12: Installation Preparation

    6. Exterior: Touch up painted panels if necessary. If panels need paint, sanding is not necessary. However, clean the surface of any oil, grease, or dirt residue so the paint will adhere. Purchase factory approved touch up epoxy paint from your local Trane Service Parts Center and apply. Service Access Service access is available from the front on vertical units and from the bottom on horizontal units.

  • Page 13: Pre-Installation Checklist

    Pre-Installation Figure 2. Recommended service clearances 24" 12" both sides 8.5" both sides 3" model A, vertical concealed model B, vertical cabinet model K, low vertical concealed model L, low vertical cabinet model H, vertical recessed 36" 12" both sides 8.5"...

  • Page 14: Dimensions And Weights

    Dimensions and Weights Table 1. Fan-coil component data Unit Size Coil Data Face Area — ft 0.8 (743) 0.8 (743) 1.1 (1020) 1.6 (1490) 2.1 (1950) 3.2 (2970) 3.2 (2970) LxDxH — in. (cm) 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...
  • Page 15 Dimensions and Weights Table 2. Low vertical fan-coil component data Unit Size Coil Data Face Area — ft 1.1 (1020) 1.6 (1490) 2.1 (1950) L x D x H — in. (cm) 2-Row 20 x 1.7 x 8 (51 x 4 x 20) 29.5 x 1.7 x 8 (75 x 4 x 20) 38 x 1.7 x 8 (97 x 4 x 20) 3-Row 20 x 2.6 x 8 (51 x 7 x 20)

  • Page 16: Available Models

    Dimensions and Weights Available Models Model A: Vertical Concealed Model B: Vertical Short Model C: Horizontal Concealed Model D: Horizontal Cabinet Model E: Horizontal Recessed Model F: Wall Hung Cabinet (Force-Flo units only) Model L: Low Vertical Concealed Model K: Low Vertical Cabinet Model H: Vertical Recessed Model J: Slope-Top Cabinet Model M: Inverted Vertical Cabinet...

  • Page 17: Factory-Installed Piping Packages

    Dimensions and Weights Factory-Installed Piping Packages Note: This figure shows piping package components and basic arrangement. It is not an accurate picturial of what factory-installed piping packages look like. UNT-SVX07B-EN...

  • Page 18: Vertical Concealed, Model A

    Dimensions and Weights Vertical Concealed, Model A Vertical Concealed Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 32-11/16” 37-11/16” 47-3/16” 55-11/16” 74-11/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 22-13/16” 27-13/16” 37-5/16” 45-13/16” 64-13/16” 17-5/16” 22-5/16” 31-13/16” 40-5/16” 59-5/16” 19-5/16” 24-5/16”...

  • Page 19: Vertical Cabinet, Model B

    Dimensions and Weights Vertical Cabinet, Model B Vertical Cabinet Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 33-5/16” 38-5/16” 47-13/16” 56-5/16” 75-5/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 7-5/8” 7-1/8” 8-7/8” 7-1/8” 7-5/8” 18” 24” 30” 42” 60” 19-5/16” 24-5/16”...

  • Page 20: Horizontal Concealed, Model C

    Dimensions and Weights Horizontal Concealed, Model C Horizontal Concealed Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 32-11/16” 37-11/16” 47-3/16” 55-11/16” 74-11/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 22-13/16” 27-13/16” 37-5/16” 45-13/16” 64-13/16” 19-3/8” 24-3/8” 33-7/8” 42-3/8” 61-3/8” 18-1/8” 23-1/8”...

  • Page 21: Horizontal Cabinet, Model D

    Dimensions and Weights Horizontal Cabinet, Model D Horizontal Cabinet Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 33-5/16” 38-5/16” 47-3/16” 56-5/16” 75-5/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 7-5/8” 7-1/8” 8-7/8” 7-1/8” 7-5/8” 18” 24” 30” 42” 60” 17-1/4” 22-1/4”...

  • Page 22: Horizontal Recessed, Model E

    Dimensions and Weights Horizontal Recessed, Model E Horizontal Recessed Unit Dimensions Unit Size 02–03 10–12 35-13/16” 40-13/16” 50-5/16” 48-13/16” 77-13/16” 21-5/16” 262-5/16” 35-13/16” 44-5/16” 63-5/16” 22-13/16” 273-13/16” 37-5/16” 45-13/16” 64-13/16” 19-3/8” 24-3/8” 33-7/8” 42-3/8” 61-3/8” 18-1/8” 23-1/8” 32-5/8” 41-1/8” 60-1/8” 32-7/16”...

  • Page 23: Vertical Wall Hung Cabinet, Model F (Force-Flo Units Only)

    Dimensions and Weights Vertical Wall Hung Cabinet, Model F (Force-Flo Units Only) Vertical Wall Hung Cabinet Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 33-5/16” 38-5/16” 47-13/16” 56-5/16” 75-5/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 7-5/8” 7-1/8” 8-7/8” 7-1/8” 7-5/8”...

  • Page 24: Vertical Recessed, Model H

    Dimensions and Weights Vertical Recessed, Model H Vertical Recessed Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 32-11/16” 37-11/16” 47-3/16” 55-11/16” 74-11/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 22-13/16” 27-13/16” 37-5/16” 45-13/16” 64-13/16” 17-5/16” 22-5/16” 31-13/16” 40-5/16” 59-5/16” 47” 51”...

  • Page 25: Vertical Slope Top, Model J

    Dimensions and Weights Vertical Slope Top, Model J Vertical Slope Top Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 33-5/16” 38-5/16” 47-13/16” 56-5/16” 75-5/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 7-5/8” 7-1/8” 8-7/8” 7-1/8” 7-5/8” 18” 24” 30” 42” 60”...

  • Page 26: Low Vertical Concealed, Model K

    Dimensions and Weights Low Vertical Concealed, Model K Low Vertical Concealed Unit Dimensions (in.) and Weights (lb) Unit Size " 2-3/8 41-7/16” 50-15/16” 59-7/16” 6-1/4 " 26-1/4” 35-3/4” 44-1/4” " 12-1/4 27-15/16” 36-13/16” 45-15/16” " 12-1/2 22-5/16” 31-13/16” 40-5/16” 24-1/4” 339-3/4”...

  • Page 27: Low Vertical Cabinet, Model L

    Dimensions and Weights Low Vertical Cabinet, Model L 3-1/16" 10-15/16" 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" 1-15/16" 11-5/16" 11-5/16" 1-5/16" 14-1/2" 1-1/8" Low Vertical Cabinet Unit Dimensions (in.) and Weights (lb) Unit Size 46-15/16”...

  • Page 28: Inverted Vertical Cabinet, Model M (Force-Flo Units Only)

    Dimensions and Weights Inverted Vertical Cabinet, Model M (Force-Flo Units Only) Inverted Vertical Cabinet Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 33-5/16” 38-5/16” 47-13/16” 56-5/16” 75-5/16” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 7-5/8” 7-1/8” 8-7/8” 7-1/8” 7-5/8” 18” 24”...

  • Page 29: Inverted Vertical Recessed, Model N (Force-Flo Units Only)

    Dimensions and Weights Inverted Vertical Recessed, Model N (Force-Flo Units Only) Inverted Vertical Recessed Unit Dimensions (in.) and Weights (lb) Unit Size 02–03 10–12 27-7/8” 32-7/8” 42-3/8” 50-7/8” 69-7/8” 21-5/16” 26-5/16” 35-13/16” 44-5/16” 63-5/16” 22-13/16” 27-13/16” 37-5/16” 45-13/16” 64-13/16” 2-3/8” 2-3/8”...

  • Page 30: Fan-Coil Coil Connections, Vertical Units

    Dimensions and Weights Fan-Coil Coil Connections, Vertical Units Fan-Coil Coil Connections, Horizontal Units UNT-SVX07B-EN...

  • Page 31: Force-Flo Coil Connections, Vertical Units

    Dimensions and Weights Force-Flo Coil Connections, Vertical Units Force-Flo Coil Connections, Horizontal Units UNT-SVX07B-EN...

  • Page 32: Force-Flo Coil Connections, Inverted Units

    Dimensions and Weights Force-Flo Coil Connections, Inverted Units UNT-SVX07B-EN...

  • Page 33: Fresh Air Opening Locations, Horizontal Units-Models C, D, And E

    Dimensions and Weights Fresh Air Opening Locations, Horizontal Units—Models C, D, and E Fresh air opening dimensions, horizontal units Unit Size 02–03 10–12 1’ 6” 1’ 11” 2’ 8-1/2” 3’ 5” 5’ 0” 1’ 9-5/16” 2’ 2-5/16” 2’ 11-13/16” 3’ 8-5/16” 5’...

  • Page 34: Fresh Air Opening Locations, Vertical Units-Models A, B, F, H, J, K, L, M, And N

    Dimensions and Weights Fresh Air Opening Locations, Vertical Units—Models A, B, F, H, J, K, L, M, and N Fresh air opening dimensions, vertical units Unit Size 02–03 10–12 1’ 6” 1’ 11” 2’ 8-1/2” 3’ 5” 5’ 0” 1’ 9-5/16” 2’...

  • Page 35: Wall Box

    Dimensions and Weights Wall Box Wall box dimensions Continuous Mortar Ribs Unit Size, Ref. only Dimensions A x B Internal Supports Top and 02–03 24-3/8 x 4- 3/4 Bottom 24-3/8 x 7-1/2 1/8” 33-1/8 x 7-1/2 1/8” 37-1/2 x 7-1/2 1/2”...

  • Page 36: Projection Panel

    Dimensions and Weights Projection Panel Unit to Wall—Top View Front View ISO Rear View ISO Projection panel dimensions Unit Size 02–03 10–12 3’ 11” 4’ 3” 5’ 3” 5’ 5-1/2” 7’ 5-1/2” 2’ 6” 2’ 6” 2’ 6” 2’ 9-1/2” 2’...

  • Page 37: Installation-Mechanical

    Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.
  • Page 38 Installation—Mechanical 2. Slide a 1/2-inch sweat connection coupling (installer provided) onto the coil headers. Note: For vertical fan-coil units, push the main condensate drain hose and overflow condensate drain hose through the inside of the chassis end panel to prevent them from getting burned when making sweat connections.
  • Page 39 Installation—Mechanical Install a secondary overflow drain line if necessary by punching out the overflow drain nipple on the auxiliary drain pan. Next, place a -inch inside diameter flexible plastic tube over the nipple and secure with a field supplied hose clamp. Note: The installer is responsible for adequately insulating field piping.
  • Page 40 Installation—Mechanical Figure 5. Attach the changeover sensor to the entering water pipe as shown for changeover to work properly Figure 6. Close-up view of the changeover sensor If the unit does not have a factory piping package, the factory attaches the sensor and coiled lead wires to the piping side end panel.
  • Page 41 Installation—Mechanical If the fan-coil unit does not have a factory piping package, the switch and coiled lead wires ship inside the piping side end panel. The installer should position the lockout switch on the supply water line of the unit by sliding its spring connector over the pipe. See Figure Figure 7.
  • Page 42 External Insulating Requirements Insulate and vapor seal surfaces colder than surrounding air dew-point a to prevent unplanned condensation. Trane recommends field-insulation of the following areas to prevent potential condensate problems: 1. Supply and return water piping connections 2. Condensate drain lines and connections 3.
  • Page 43 Installation—Mechanical Figure 10. Manual circuit setter valve Figure 11. Automatic circuit setter valve Figure 12. Automatic circuit setter valve Perform the following procedure to set maximum water flow through the coil: 1. Establish water flow through the coil. Perform an open override of the valve if the control valve is closed to the coil, either manually or by Tracer.
  • Page 44 Installation—Mechanical If the piping package has modulating valves: To manually drive the valve open, depress the button stem on top of the valve and push the lever located on the side of the valve to the full open position. 2. For presetting, use the appropriate valve curve shown in Figure 13, p.
  • Page 45 Installation—Mechanical Figure 13. Manual circuit setter valve, differential pressure vs. flow UNT-SVX07B-EN...
  • Page 46 This provides sufficient hydrostatic head pressure to overcome trap losses and ensure complete condensate removal. b. Trane recommends using flat and thermostatic traps because of gravity drain and continuous discharge operation. c. Use float and thermostatic traps with atmospheric pressure gravity condensate return, with automatic controls or where the possibility of low pressure supply steam exists.
  • Page 47 Installation—Mechanical Figure 14. Typical piping for steam coils Code of System Components in Piping Diagram Float and thermostatic steam trap Bucket steam trap Gate valve Automatic two-position (on-off) control valve Automatic three-way control valve Vacuum breaker Check valve Strainer Automatic or manual air vent Figure 15.

  • Page 48: Installation-General

    Installation—General Installing the Unit Follow the procedures below to install the unit properly. Refer to “Dimensions and Weights, ” p. 14 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.

  • Page 49: Cabinet Units

    Installation—General Note: Follow the requirements of National Fire Protection Association (NFPA) Standard 90A or 90B, concerning the use of concealed ceiling spaces as return air plenums. 1. Prepare the ceiling opening for recessed units. Reference the unit submittals for dimensions. 2.

  • Page 50: Installation Checklist

    Installation—General Figure 16. Installing the trim ring assembly on horizontal recessed units Notes: • The trim ring assembly cannot accomodate unlevel ceilings. • On sizes 8, 10, and 12 center installation position and use 2- or 3.5-inch bolts, whichever is best suited for installation.
  • Page 51 Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

  • Page 52: Installation-Controls

    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. General Information Control Options (Including Factory-Installed) Tracer ZN010 Options Tracer ZN510 and ZN520 Options Unit-mounted zone sensor: Wall-mounted zone sensor: Digit 30 = E and Digit 31 = V Digit 30 = F or G and Digit 31 = 1 X13511530-01 (wall)

  • Page 53: Installing Wall-Mounted Wired Sensors

    Installation—Controls Tracer ZN510 and ZN520 Options (continued) Wall-mounted wired display sensor with setpoint adjustment: Digit 30 = F or G and Digit 31 = 4 X13790886-04 (wall) Wall-mounted wireless temperature sensor (WTS) (setpoint adjustment, no fan speed adjustment) and unit-mounted receiver: Digit 30 = F or G and Digit 31 = 6 X13790821-01 (wall) X13790860-02 (unit)
  • Page 54 Installation—Controls Figure 17. Wall-mounted zone sensor dimensions TYP R.07 in (R1.9) mm 0.31 in (8 mm) TYP 0.24 in (6 mm) 2.9 in (73.5 cm) 1.08 in (27.5 mm) 0.12 in (3 mm) 3.39 in (86 mm) 2.48 in (63 mm) 4.68 in (118.9 mm) 0.63 in (15.9 mm) 1.45 in (36.8 mm)

  • Page 55: Location Considerations

    Installation—Controls Height Requirements It is recommended that you mount the back plate a maximum distance of 54 inches above the floor. If a parallel approach by a person in a wheelchair is required, reduce the maximum height to 48 inches. Note: Consult section 4.27.3 of the 2002 ADA (Americans with Disability Act) guideline, and local building codes, for further details regarding wheelchair requirements.

  • Page 56: Installing Wall-Mounted Wireless Zone Sensors

    ® Trane wireless sensor sets are compatible with any Trane unit controller that uses a standard 10 kΩ temperature input. The sets include sensor, receiver, wiring harness, and two AA lithium batteries. No further software or hardware is necessary for site evaluation, installation, or maintenance.

  • Page 57: Location Considerations

    Installation—Controls TYP R.07 in 0.31 in (8 mm) (R1.9 mm) TYP 0.24 in (6 mm) 2.9 in (73.5 mm) 1.08 in (27.5 mm) 0.12 in (3 mm) 3.39 in (86 mm) 4.68 in (118.9 mm) 0.63 in (15.9 mm) 1.45 in (36.8 mm) 2.62 in (66.5 mm) Location Considerations Placement of the sensor is critical to proper operation (the receiver is factory mounted on fan-coil...

  • Page 58: Replacing The Sensor Cover

    Installation—Controls Replacing the Sensor Cover To replace the cover: 1. Hook the cover over the top of the back plate. Apply light pressure to the bottom of the cover until it snaps in place. 2. Install the security screw into the bottom of the cover (if desired). Security screw UNT-SVX07B-EN...

  • Page 59: Installation-Electrical

    Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

  • Page 60: Wall-Mounted Control Interconnection Wiring

    Installation—Electrical NOTICE Equipment Damage! Unit transformer IT1 provides power to fan-coil unit only. Field connections to the transformer IT1 may create immediate or premature unit component failure. All input/output circuits (except isolated relay contacts and optically isolated inputs) assume a grounded source, either a ground wire at the supply transformer to control panel chassis, or an installer supplied ground.
  • Page 61 Installation—Electrical Table 5. Decimal to fractional HP (kW) conversion (continued) Decimal Fraction 0.05 1/20 0.06 1/16 0.10 1/10 0.13 0.07 1/15 0.12 0.16 0.24 0.12 0.13 0.24 0.05 0.07 1/20 1/15 0.06 0.12 1/16 0.10 0.16 1/10 0.13 0.24 0.05 0.12 1/20 0.06...
  • Page 62 Installation—Electrical Table 8. Free-discharge motors on units with three- and four-row coils 115 Volt 208–230 Volt 277–480 Volt Unit Size hp (kW) hp (kW) hp (kW) 0.60 0.03 (0.02) 0.03 (0.02) 0.03 (0.02) 0.80 0.05 (0.04) 0.05 (0.04) 0.05 (0.04) 1080 1.00 0.06 (0.04)
  • Page 63 Installation—Electrical Table 10. Fan-coil electric heat kW (continued) Unit Size Unit Voltage 10.0 10.0 Table 11. Electric heat kW, low vertical fan-coil Unit Size Unit Voltage 115.0 115.0 115.0 Note: Low vertical units are only available with electric heat in combination with the two-row cooling coil. Minimum Circuit Ampacity (MCA) and Maximum Fuse Size (MFS) Calculations for Fan-Coils with Single Phase Electric Heat Heater amps = (heater kW x 1000)/heater voltage...
  • Page 64 Installation—Electrical Table 12. Force-Flo single-stage, max kW electric heat Unit Size Volts Phase Wires Heater kW Heater amps/ph 208.0 2.25 10.9 240.0 12.5 277.0 10.9 208.0 2.25 240.0 480.0 208.0 21.7 240.0 25.0 277.0 21.7 208.0 12.6 240.0 14.5 480.0 208.0 27.5 240.0...
  • Page 65 Installation—Electrical Table 13. Force-Flo single stage, low kW electric heat (continued) Unit Size Voltage # Wires amps/ph amps/ph amps/ph 208/60/1 10.9 15.9 240/60/1 12.5 18.8 277/60/1 10.9 16.3 208/60/3 240/60/3 10.9 480/60/3 208/60/1 10.9 15.9 21.7 240/60/1 12.5 18.8 25.0 277/60/1 10.9 16.3...
  • Page 66 Installation—Electrical Table 14. Force-Flo two-stage electric heat (continued) Unit Size Volts Phase Wires 1st Stage kW Total kW Total amps/ph 27.5 31.3 27.1 15.9 18.1 38.0 10.5 43.8 10.5 38.0 21.9 10.5 25.3 10.5 12.7 10.1 48.8 13.5 56.3 13.5 48.8 10.1 28.2...

  • Page 67: Controls Interface

    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. Refer to the most recent version of Trane publication CNT-SVX04A-EN (Tracer ZN.520 Unit Controller: Installation, Operation and Programming Guide) for the communication wiring diagram.

  • Page 68: Wireless Temperature Sensor

    Controls Interface • Make sure that the 24 Vac power supplies are consistent in how they are grounded. Avoid sharing 24 Vac between LonTalk UCMs. • Avoid over-tightening cable ties and other forms of cable wraps. A tight tie or wrap could damage the wires inside the cable.

  • Page 69: Observing The Receiver For Readiness To Associate

    Controls Interface Figure 19. Setting the rotary address switches on the receiver and the sensor Do not remove the insulation strip yet. B1 + WIRELESS LESS INSTALL TALL TA A LED4 Pb-FREE LED1 LED1 LED2 LED2 LED3 LED3 SIGNAL SIGNAL LED5 LED5 ADD D RESS...

  • Page 70: Associating The Sensor To The Receiver

    Controls Interface Associating the Sensor to the Receiver To associate the sensor to the receiver: 1. Remove the sensor cover by firmly pressing the thumb tab at the bottom of the cover and pulling the cover away from the back plate. 2.

  • Page 71: Configuring The Wireless Display Sensor (Model Wds Only)

    Controls Interface Model WDS sensor Model WTS 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 pre-configured for three speeds. The configuration of the sensor determines which system features can be accessed and changes can be made by the tenant (for example, changes to cooling/heating mode, setpoint, or fan speed.
  • Page 72 Controls Interface 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 UNT-SVX07B-EN...
  • Page 73 Controls Interface 3. Configure the sensor options in the order shown in the table. • Press to scroll to the next selection (as illustrated). • Press to move to the next menu (as illustrated). Setting Configuration Options Temperature • Choose Fahrenheit or Celsius •...
  • Page 74 Controls Interface Optional Features Displaying Setpoint or Temperature. You can configure the sensor to display either the temperature (default) or setpoint. To select either option: 1. Verify that the sensor is in operating mode and at the home screen. 2. Press the up and down arrows for 3 seconds. The arrow indicates setpoint display, as shown in the figure.

  • Page 75: Replacing The Sensor Cover

    Controls Interface Note: If you try to access a feature that is locked, the locked symbol will appear on the display. If you press a keypad button to try change a locked setting, the locked symbol will flash. Replacing the Sensor Cover To replace the cover: 1.
  • Page 76 Controls Interface Receiver Power-up Sequence When power is applied to the receiver, one of the following sequences occurs. The sequence is dependent on the address setting and the association status of the receiver. Address set to 000 and receiver is not associated with a sensor •...
  • Page 77 The minimum change in temperature setpoint required to force a sensor transmission is: – 0.1°C for a model WDS sensor Operating Mode (Model WDS) This section describes how to operate the Trane wireless sensor, model WDS. Figure 20 shows an example of a model WDS that has been configured and is in operating mode.

  • Page 78: Wireless Sensor Specifications

    Replace batteries. Flashing symbol Use only UL-listed non-rechargeable 1.5 V indicates that lithium AA batteries (Trane p/n X13770035010 approximately 14 days of or equivalent). operation remain. Wireless Sensor Specifications The following table presents specifications for all models of the wireless sensor sets.
  • Page 79 Controls Interface Sensor operating temperature 32ºF to 122ºF (0ºC to 50ºC) Receiver operating temperature -40ºF to 158ºF (-40ºC to 70ºC) Storage temperature -40ºF to 185ºF (-40ºC to 85°C) Storage and operating humidity range 5% to 95%, non-condensing Accuracy 0.5°F over a range of 55ºF to 85°F (12.8ºC to 29.4°C) Resolution 0.125ºF over a range of 60ºF to 80ºF (15.56ºC to 26.67°C) 0.25ºF when outside this range...
  • Page 80 Controls Interface The following table presents agency compliance information for wireless sensor set models as shown. United States compliance UL listed: UL 94-5VA Flammability rating (all models) UL 916: Energy management equipment FCC CFR47, Section 15.247 & Subpart E Digital Modulation Transmission with no SAR (FCC Identification TFP- 13651127) This device complies with Part 15 of the FCC Rules.

  • Page 81: Pre-Start

    Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.
  • Page 82 Pre-Start Electrical Check all electrical connections for tightness. Note: Some circumstances may require the unit to run before building construction is complete. These operating conditions may be beyond the design parameters of the unit and may adversely affect the unit. UNT-SVX07B-EN...

  • Page 83: Start-Up

    Start-Up Tracer™ ZN510 & 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.

  • Page 84: Fan Mode Switch Operation

    Start-Up Figure 22. Fan speed switch The unit-mounted option operates on line voltage. The wall-mounted option is low-voltage and has three 24-volt relays using a factory-wired transformer and relays to control the fan motor. Tracer ZN010 & ZN510 Tracer ZN010 is a stand-alone device that controls fan-coils and cabinet heaters. Tracer ZN510 can be stand-alone or use peer-to-peer communications.

  • Page 85: Tracer Zn520 Operation

    Start-Up Auto (Fan Cycling) Fan and fresh air damper cycle with control valve option to maintain setpoint temperature. In cooling mode, the fan cycles from off to medium and in heating mode it cycles from off to low. When no heating or cooling is required, the fan is off and the fresh air damper option closes. Low/Med/High (Continuous Fan) Fan operates continuously while control valve option cycles to maintain setpoint temperature.

  • Page 86: Sequence Of Operation: Tracer Zn010 And Zn510

    Start-Up Sequence of Operation: Tracer ZN010 and ZN510 Note: This section applies only to units with a Tracer ZN010 or ZN510 controller. Power-Up Sequence When 24 Vac power is initially applied to the Tracer ZN010 or ZN510, the following sequence occurs: 1.

  • Page 87: Binary Outputs

    Start-Up BIP2: Condensate Overflow Detection Option The factory hard wires the condensate overflow sensor to binary input #2 (BIP2) on the Tracer ZN010 and ZN510. The sensor defaults normally closed (N.C.), and will trip off the unit on a condensate overflow diagnostic if condensate reaches the trip point. In addition, the Tracer ZN010 and ZN510 control unit devices as listed below: Fan: Off Valves: Closed...

  • Page 88: Zone Sensors

    The fan cycles when the fan mode switch is placed in auto. The fan runs continuous when placed in the high, medium, or low position. Use Rover, Trane’s installation and service tool, to change auto defaults.

  • Page 89: Tracer Zn520 Sequence Of Operation

    Start-Up (a) Whenever two states are listed for the fan: The first state (off) applies when there is not a call for heating or cooling. The second state (varies) applies when there is a call for heating or cooling. The heat default is factory configured for low fan speed, and the cool default is medium. Table 20.
  • Page 90 Occupied Bypass Mode The controller can be placed in occupied bypass mode by either communicating an occupancy request of Bypass to the controller or by using the timed override On button on the Trane zone sensor. When the controller is in unoccupied mode, you can press the On button on the zone sensor to place the controller into occupied bypass mode for the duration of the bypass time (typically 120 minutes).

  • Page 91: Cooling Operation

    Start-Up Cooling Operation The heating and cooling setpoint high and low limits are always applied to the occupied and occupied standby setpoints. During the cooling mode, the Tracer ZN520 controller attempts to maintain the space temperature at the active cooling setpoint. Based on the controller’s occupancy mode, the active cooling setpoint is one of the following: •...

  • Page 92: Fan Mode Operation

    Start-Up The controller uses the measured space temperature, the active heating setpoint, and discharge air temperature, along with the control algorithm, to determine the requested heating capacity of the unit (0%–100%). The outputs are controlled based on the unit configuration and the required heating capacity.
  • Page 93 Start-Up are present, the communicated request has priority over the hardwired input. See Table Table 23, and Table Table 22. Local fan switch enabled Communicated Fan Speed Input Fan Switch (Local) Fan Operation Ignored Ignored Medium Ignored Medium High Ignored High Auto Medium...
  • Page 94 Start-Up If both a zone sensor module and communicated request exist, the communicated request has priority. Fan Cycling Operation Tracer ZN520 does not support fan cycling in occupied mode. The fan cycles between high speed and off in the unoccupied mode only. The controller’s cascade control algorithm requires continuous fan operation in the occupied mode.
  • Page 95 Start-Up Electric Heat Operation The Tracer ZN520 controller supports one or two-stage electric heat operation for heating. To control the space temperature, electric heat is cycled to control the discharge air temperature. The rate of cycling is dependent upon the load in the space and the temperature of the incoming fresh air from the economizer (if any).
  • Page 96 (with communication wiring between units) and building automation system applications. For this application you will need to use the Rover service tool. For more information on setup, refer to the Trane publication EMTX-SVX01G-EN, or the most recent version.
  • Page 97 Start-Up • One DX cooling stage • One or two-stage electric heat (dehumidification requires this to be in the reheat position) • Face and bypass damper • Modulating outdoor air damper • One baseboard heat stage For more information, see Table Table 27.

  • Page 98: Space Temperature Measurement

    Communication jack Space Temperature Measurement Trane zone sensors use a 10kΩ thermistor to measure the space temperature. Typically, zone sensors are wall-mounted in the room and include a space temperature thermistor. As an option, the zone sensor can be unit-mounted with a separate space temperature thermistor located in the unit’s return air stream.
  • Page 99 Start-Up When the hardwired setpoint adjustment is used to determine the setpoints, all unit setpoints are calculated based on the hardwired setpoint value, the configured setpoints, and the active mode of the controller. The hardwired setpoint is used with the controller’s occupancy mode (occupied, occupied standby, or unoccupied), the heating or cooling mode, the temperature deadband values, and the heating and cooling setpoints (high and low limits) to determine the controller’s active setpoint.
  • Page 100 Communication also is possible via Rover, Trane’s service tool. Peer-to-peer communication across controllers is possible even when a building automation system is not present. You do not need to observe polarity for LonTalk communication links.

  • Page 101: Maintenance

    Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.
  • Page 102 Maintenance Auxiliary Drain Pan 1. To remove the auxiliary drain pan, loosen the hose clamp (installer supplied) around the drain connection collar and disconnect the drain line. 2. Remove the overflow drain line to the auxiliary drain pan if it was installed. 3.
  • Page 103 Maintenance Figure 26. To remove the main drain pan on vertical fan-coil units, disconnect the clips holding the pan to the fanboard. Clips Hold Drain Pan in Place Horizontal Units. To remove the main drain pan on a horizontal fan-coil unit, peel the insulation from the edges of the pan’s underside to access the mounting screws.
  • Page 104 Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

  • Page 105: Periodic Maintenance Checklists

    Replacing the Motor The capacitor for all unit motors can be replaced should it fail. Contact the local Trane service department to replace the motor capacitor in the event it fails. However, the motor itself cannot be repaired or rewound.
  • Page 106 Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

  • Page 107: Diagnostics

    Diagnostics Table 30. Tracer ZN520 diagnostics Diagnostic Other Outputs Condensate overflow Valves Closed, Fresh air damper Closed, Electric heat Off, Baseboard heat Off Low temperature detection Valves Open, Fresh air damper Closed, Electric heat Off, Baseboard heat Off Low air flow - fan failure Valves Closed, Fresh air damper Closed, Electric heat Off, Baseboard heat Off Space temperature failure Valves Closed, Fresh air damper Closed, Electric heat Off, Baseboard heat Off...
  • Page 108 2. By initiating a manual output test at the controller 3. By cycling power to the controller 4. Through Rover™, Trane’s service tool 5. Tracer ZN520: by using any other communicating device ab le to access the controller’s diagnostic reset input.
  • Page 109 5. No Action: The diagnostic has no affect on the end device. Using Trane’s Service Tool, Rover™ 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).
  • Page 110 Diagnostics Table 32. Fan outputs do not energize Probable Cause Explanation Random start After power-up, the controller always observes a random start that varies observed between 0 and 25 seconds. The controller remains off until the random start time expires. Power-up control wait When power-up control wait is enabled (non-zero time), the controller remains off until one of two conditions occurs: 1.
  • Page 111 Diagnostics Table 34. Valves stay open Probable Cause Explanation Normal operation The controller opens and closes the valves to meet the unit capacity requirements. Valve override The controller can communicate a valve override request to affect the valve operation. Manual output test The controller includes a manual output test sequence that verifies analog and binary output operation and the associated wiring.
  • Page 112 Diagnostics Table 37. Fresh air damper stays closed 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.

  • Page 113: Troubleshooting

    Diagnostics Troubleshooting Troubleshooting the Relay (Daughter) Board The relay board serves as a common interface to all of the standard end devices, and has an LED ® that indicates power to the board. Factory switches are pre-set and locked in place with LocTite However, these seals can be broken if field-modifications are needed.
  • Page 114 Diagnostics Figure 29. Relay board detail Interface to Tracer ZN Controller LED Indicates Power Configuration Switches (Factor Pre-set) Connection to Valve and Piping Sensor Crossover Harness Do Not Adjust These Switch Positions Because it May Result in a Safety Hazard! Note: HAZARDOUS Voltage in Dashed Area of Board! Switch SW1: Controller Type...

  • Page 115: Troubleshooting Wireless Controls

    Diagnostics feature is on models with both hydronic and electric heat. Low vertical models with electric heat, switch SW4 to position 2 (on). Troubleshooting Wireless Controls Locations of LEDs, Test button, Test Symbols, and Error Codes The receiver for all models has four LEDs: LED1, LED2, LED3, and LED5. Figure 30 shows their locations.
  • Page 116 Diagnostics Figure 31. LED, Test button, and symbol locations on the sensor LED1 LED2 LED3 LED5 Test symbols Error code Test button Test button WTS sensor WDS sensor Diagnostics LED1, LED2, and LED3, located on the sensor of model WTS respond to diagnostics by exhibiting specific blinking patterns.
  • Page 117 Diagnostics LED1, LED2, and LED3, located on the receiver of all models, respond to diagnostics by exhibiting specific blinking patterns. They respond independently of any user action (see Table 39). Table 39. Diagnostics on the receiver LED state Indicates... LED1: Off Disassociated LED2: Off •...
  • Page 118 Diagnostics Table 41. Observing signal strength on the receiver User action LED state (receiver, all models) Indicates... None LED1: Off Normal state LED2: Off • No Test button press. LED3: Off Press Test button LED1: On Excellent signal strength on the sensor LED2: On •...
  • Page 119 Use two non-rechargeable 1.5 V lithium AA batteries in the sensor. To maintain UL rating, use only UL-listed lithium batteries. The sensor ships with Energizer™ L91 batteries already installed. Replacement batteries are available at Trane Service Parts Centers (p/n X13770035010) or other local suppliers.
  • Page 120 Diagnostics Battery Installation WARNING Prevent Injury! Batteries can explode or leak and cause burns if installed backwards, disassembled, charged, or exposed to water, fire, or high temperature. WARNING Prevent Injury! Keep away from small children. If swallowed, contact your local poison control center immediately.
  • Page 121 Diagnostics Sensor/Receiver Compatibility Version 1.5 (p/n X13790854 and X13790855) and higher receivers are compatible with all sensors models and support all functions. Receivers released prior to version 1.5 are compatible with only model WTS. Replacing a Failed Sensor or Receiver Note: Receivers ship installed on the unit.
  • Page 122 Diagnostics Procedure for Testing the Receiver If the receiver is not working as expected: 1. Verify that the receiver is powered. 2. Set the receiver address to 000 to force the zone temperature output and zone temperature setpoint output to their default mode values (see “Output Values—Failure and Default Modes of Operation, ”...
  • Page 123 Diagnostics a. All models: Measure between the grounded GND-SIGNAL (black) wire and either the SETPOINT (red) or ZONE (white) wire. Compare resistance measurements to those in Table b. WDS only: Measure between the grounded GND-SIGNAL (black) wire and the FAN/SYSTEM (green) wire.

  • Page 124: Troubleshooting Tracer Zn010, Zn510, And Zn520

    If the LED is on continuously, even when power is applied to the controller means that someone is pressing the SERVICE button or that the controller has failed. If the LED flashes once every second, use Rover™, Trane’s service tool, to restore the unit to normal operation. Refer to the Rover™ product literature for more information.

  • Page 125: Manual Output Test

    Diagnostics Manual Output Test The purpose of the manual output test sequence is to verify output and end device operation. Use the manual output test to: • Verify output wiring and operation without using Rover™, service tool • Force the water valve to open and balance the hydronic system Note: The manual output test is not an automatic cycle.

  • Page 126: Wiring Diagrams

    Wiring Diagrams CSTI Fan Speed Switch UNT-SVX07B-EN...

  • Page 127: Csti Non Fan Speed Switch

    Wiring Diagrams CSTI Non Fan Speed Switch UNT-SVX07B-EN...

  • Page 128: Line Voltage Fan Speed Switch

    Wiring Diagrams Line Voltage Fan Speed Switch UNT-SVX07B-EN...

  • Page 129: Tracer Zn010 With Electric Heat

    Wiring Diagrams Tracer ZN010 with Electric Heat UNT-SVX07B-EN...

  • Page 130: Tracer Zn510 With Main And Auxiliary Valves

    Wiring Diagrams Tracer ZN510 with Main and Auxiliary Valves UNT-SVX07B-EN...

  • Page 131: Zn520 With 2-Stage Electric Heat

    Wiring Diagrams ZN520 with 2-Stage Electric Heat UNT-SVX07B-EN...
  • Page 132 Supersedes UNT-SVX07A-EN (April 2005) www.trane.com Trane has a policy of continuous product and product data improvement and reserves the right to For more information, contact your local Trane change design and specifications without notice. Only qualified technicians should perform the office or e-mail us at comfort@trane.com...

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