Trane Uni Fan Coil and Force-Flo Installation Manual

SAFETY WARNINGOnly qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating,

10 UNT-SVX07D-ENPre-InstallationReceiving and HandlingUpon delivery, inspect all components for possible shipping damage. See “Receiving Checklist” (

Startup100 UNT-SVX07D-ENTimed Override Control (UC400)If the UC400 controller has a timed override option (ON/CANCEL buttons), pushing the ON button

StartupUNT-SVX07D-EN 101 In heating or cooling mode, the controller maintains the zone temperature based on the active heating setpoint and the active

Startup102 UNT-SVX07D-ENsection, “Manual Fan Speed Control (UC400)”). AUTO Fan Operation; ECM Acoustical Mode (UC400)When the controller is configure

StartupUNT-SVX07D-EN 103 speed fan operation. A controller can receive a BAS-communicated outdoor air damper minimum position.A BAS-communicated minim

Startup104 UNT-SVX07D-EN• The heating capacity is located in the reheat position• The space relative humidity is validThe space relative humidity can

StartupUNT-SVX07D-EN 105 begins accumulating fan run time again. The diagnostics can be cleared and the filter timer reset by temporarily overriding t

106 UNT-SVX07D-ENMaintenanceMaintenance ProceduresPerform the following maintenance procedures to ensure proper unit operation.Air FiltersChange or c

MaintenanceUNT-SVX07D-EN 107 Main Drain PanSee Figure 38 to replace main drain correctly.Vertical Units. To remove the main drain pan on vertical fan

Maintenance108 UNT-SVX07D-ENis dependent upon system operating hours, filter maintenance, and efficiency and dirt load. Follow the suggested methods

MaintenanceUNT-SVX07D-EN 109 Vertical UnitsNotes:• In vertical units, wiring to the motor transitions from the control panel onto a trough onto the fa

Pre-InstallationUNT-SVX07D-EN 11 is continuously pitched 1 inch per 10 feet of condensate line run to adequately drain condensate.5. Wall & ceili

Maintenance110 UNT-SVX07D-ENNote: Motor plug with latch.Horizontal UnitsNotes:• In horizontal units, wiring to the motor is routed below the fan boar

MaintenanceUNT-SVX07D-EN 111 Monthly Maintenance1. Inspect unit air filters. Clean or replace if airflow is blocked or if filters are dirty.2. Check

11 2 UNT-SVX07D-ENDiagnosticsOutput Testing and Diagnostics (Tracer ZN520)Translating Multiple Diagnostics (Tracer ZN520)The controller senses and re

DiagnosticsUNT-SVX07D-EN 11 3 Note: The automatic diagnostic reset function does not operate during the manual output test sequence.If a special diag

Diagnostics114 UNT-SVX07D-ENTable 39. Valves stay closed (Tracer ZN520)Probable Cause ExplanationNormal operationThe controller opens and closes the

DiagnosticsUNT-SVX07D-EN 11 5 Output Testing and Diagnostics (UC400)This section provides information about the following:• Output testing• Diagnosti

Diagnostics11 6 UNT-SVX07D-ENManual (Latching) Diagnostics (UC400). Manual diagnostics (also referred to as latching) cause the unit to shut down. M

DiagnosticsUNT-SVX07D-EN 11 7 Troubleshooting (Wireless Controls)Locations of LEDs, Test button, Test Symbols, and Error CodesThe receiver for all mo

Diagnostics11 8 UNT-SVX07D-ENError codes appear on the display of the model WDS sensor when diagnostics occur (see Table 45).LED1, LED2, and LED3, lo

DiagnosticsUNT-SVX07D-EN 119 shown in Tab l e 49, p. 119 .• On model WDS, push the Test button on the sensor (see location on Figure 43, p. 117 ). I

12 UNT-SVX07D-ENDimensions and WeightsTable 1. Fan-coil component dataUnit Size 02 03 04 06 08 10 12Coil DataFace Area — ft20.8 0.8 1.1 1.6 2.1 3.2 3

Diagnostics120 UNT-SVX07D-EN6. Observe the polarity indicators that are molded into the cover.7. Install two batteries (of the type specified in “Bat

DiagnosticsUNT-SVX07D-EN 121 • The Test button on the sensor• The address test mode on the receiver• A common volt-ohm meterProcedure for Testing the

Diagnostics122 UNT-SVX07D-ENgiven in Table 53, p. 122.Note: The output circuits are not electrically powered; consequently, resistance can be measure

DiagnosticsUNT-SVX07D-EN 123 If the LED is off, either the power is off, an abnormal condition is present or the TEST button is pressed.Yellow COMM LE

Diagnostics124 UNT-SVX07D-ENTroubleshooting (UC400)Tab l e 5 5 through Table 60, p. 125 provide troubleshooting information if encountering operati

DiagnosticsUNT-SVX07D-EN 125 Table 58. DX or electric heat does not energize (UC400) Probable Cause ExplanationUnit wiring The wiring between the con

Diagnostics126 UNT-SVX07D-ENTroubleshooting (ECM)Notes:• The new Trane BLDC system is a closed loop system that has equipment protections and envelop

DiagnosticsUNT-SVX07D-EN 127 connections will cause malfunction and the system will shutdown.• Do not unplug or plug-in motors or connectors while the

Diagnostics128 UNT-SVX07D-EN• Verify that the voltage jumper on the motor plug harness is absent for 208-230V units and 277V units. If the jumper is

UNT-SVX07D-EN 129 Replacing ECM ComponentsNotes:• Ensure that drip-loops are maintained on wiring on pipe end of unit to avoid wicking of water into t

Dimensions and WeightsUNT-SVX07D-EN 13 Table 2. Low vertical fan-coil component dataUnit Size 03 04 06Coil DataFace Area — ft21.1 1.6 2.1L x D x H — i

Replacing ECM Components130 UNT-SVX07D-EN• Before assuming that any of the boards or components in the new system have failed, please ensure that the

Replacing ECM ComponentsUNT-SVX07D-EN 131 5. Ensure that the CSTI adapter board switches are set correctly, as indicated on the attached unit schemati

132 UNT-SVX07D-ENECM Application NotesThe new Trane BLDC system has some notable differences to traditional designs.RPM ModeThe motors are programmed

UNT-SVX07D-EN 133 Wiring DiagramsFigure 48. Unit-mounted fan speed switch with factory-mounted disconnectUNT-SVX07_-EN.book Page 133 Friday, April 2

Wiring Diagrams134 UNT-SVX07D-ENFigure 49. Tracer ZN 520 unit with two-stage electric heat and unit-mounted zone sensorUNT-SVX07_-EN.book Page 134

Wiring DiagramsUNT-SVX07D-EN 135 Figure 50. CSTI unit with single-stage electric heat and unit-mounted fan switch (Note: CSTI configuration switches)U

Wiring Diagrams136 UNT-SVX07D-ENFigure 51. Tracer ZN520 unit with four-pipe configuration, condensate overflow switch and wall-mounted zone sensorUNT

Wiring DiagramsUNT-SVX07D-EN 137 Figure 52. Tracer ZN510 unit with four-pipe configuration and split zone sensor/unit fan switch configurationUNT-SVX0

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustaining safe, com

Dimensions and Weights14 UNT-SVX07D-ENAvailable ModelsModel A: Vertical ConcealedModel B: Vertical ShortModel C: Horizontal ConcealedModel D: Hor

Dimensions and WeightsUNT-SVX07D-EN 15 Factory-Installed Piping PackagesNote: This figure shows piping package components and basic arrangement. It is

Dimensions and Weights16 UNT-SVX07D-ENVertical Concealed, Model AVertical Concealed UnitUnit Size 200-300 400 600 800 1000-1200No. of Fans1122 3No. o

Dimensions and WeightsUNT-SVX07D-EN 17 Vertical Cabinet, Model BVertical Cabinet Unit Unit Size 200-300 400 600 800 1000-1200No. of Fans1122 3No. of M

Dimensions and Weights18 UNT-SVX07D-ENHorizontal Concealed, Model CHorizontal Concealed Unit Dimensions (in.) and Weights (lb)Unit Size 200-300 400 6

Dimensions and WeightsUNT-SVX07D-EN 19 Horizontal Cabinet, Model DHorizontal Cabinet Unit Unit Size 200-300 400 600 800 1000-1200No. of Fans1122 3No.

© 2012 Trane All rights reserved UNT-SVX07D-ENWarnings, Cautions and NoticesWarnings, Cautions and Notices. Note that warnings, cautions and notic

Dimensions and Weights20 UNT-SVX07D-ENHorizontal Recessed, Model EHorizontal Recessed Unit Unit Size 200-300 400 600 800 1000-1200No. of Fans1122 3No

Dimensions and WeightsUNT-SVX07D-EN 21 Vertical Wall Hung Cabinet, Model F (Force-Flo Units Only)Vertical Wall Hung Cabinet Unit Unit Size 200-300 400

Dimensions and Weights22 UNT-SVX07D-ENVertical Recessed, Model HVertical Recessed UnitUnit Size 200-300 400 600 800 1000-1200No. of Fans1122 3No. of

Dimensions and WeightsUNT-SVX07D-EN 23 Vertical Slope Top, Model JVertical Slope Top UnitUnit Size 200-300 400 600 800 1000-1200No. of Fans 1 1 2 2 3N

Dimensions and Weights24 UNT-SVX07D-ENLow Vertical Concealed, Model K 12-9/16"2-11/16"10-11/16"1-13/16"1-1/8"1-13/16"

Dimensions and WeightsUNT-SVX07D-EN 25 Low Vertical Cabinet, Model L10-15/16"4-7/16"8-1/2"10-15/16"2-3/8"12-1/4"12-1/2&q

Dimensions and Weights26 UNT-SVX07D-ENInverted Vertical Cabinet, Model M (Force-Flo Units Only)Inverted Vertical Cabinet Unit Dimensions (in.) and W

Dimensions and WeightsUNT-SVX07D-EN 27 Inverted Vertical Recessed, Model N (Force-Flo Units Only)Inverted Vertical Recessed Unit Dimensions (in.) and

Dimensions and Weights28 UNT-SVX07D-ENCompact Concealed, Model PCONTROLBOXMAIN DRAIN (OPTIONAL)CONNECTION FOR7/8” OD COPPERTUBE AND CLAMPSECONDARY DR

Dimensions and WeightsUNT-SVX07D-EN 29 Fan-Coil Coil ConnectionsVertical UnitsHorizontal UnitsUNT-SVX07_-EN.book Page 29 Friday, April 27, 2012 9:4

Warnings, Cautions and NoticesUNT-SVX07D-EN 3 Revision HistoryThe revision of this literature dated 27 Apr 2012 includes information for Tracer™ UC400

Dimensions and Weights30 UNT-SVX07D-ENForce-Flo Coil ConnectionsVertical UnitsHorizontal UnitsUNT-SVX07_-EN.book Page 30 Friday, April 27, 2012 9:

Dimensions and WeightsUNT-SVX07D-EN 31 Force-Flo Coil ConnectionsInverted UnitsUNT-SVX07_-EN.book Page 31 Friday, April 27, 2012 9:40 AM

Dimensions and Weights32 UNT-SVX07D-ENFresh Air Opening LocationsHorizontal Units—Models C, D, E, and P (Back Duct Collar Only for Model P)Fresh air

Dimensions and WeightsUNT-SVX07D-EN 33 Fresh Air Opening LocationsVertical Units—Models A, B, F, H, J, K, L, M, and NFresh air opening dimensions, ver

Dimensions and Weights34 UNT-SVX07D-ENWall BoxWall box dimensions Unit Size, Ref. only Dimensions A x B Internal Supports02–03 24-3/8 x 4- 3/4 104 24

Dimensions and WeightsUNT-SVX07D-EN 35 Projection PanelProjection panel dimensions Projection panel, all unit sizes Unit Size 02–03 04 06 08 10–12A

36 UNT-SVX07D-ENInstallation—MechanicalDuct ConnectionsInstall all air ducts according to National Fire Protection Association standards for the Inst

Installation—MechanicalUNT-SVX07D-EN 37 Water Piping Connections to Factory-Installed Piping PackageBefore installing water piping supply and return l

Installation—Mechanical38 UNT-SVX07D-ENAutomatic Changeover SensorTwo-pipe changeover units with either the Tracer ZN010, ZN510, ZN520, and UC400 and

Installation—MechanicalUNT-SVX07D-EN 39 2. For units with manual air vents, back the set screw out to expel air from the unit and then re-tighten the

4 UNT-SVX07D-ENTable of ContentsWarnings, Cautions and Notices . . . . . . . . . . 2Model Number Descriptions . . . . . . . . . . . . . . 6Genera

Installation—Mechanical40 UNT-SVX07D-EN5. Adjust the circuit setter valve by turning the valve stem until the appropriate pressure drop is achieved.

Installation—MechanicalUNT-SVX07D-EN 41 Figure 13. Typical piping for steam coilsFigure 14. Main steam coil connection diagramCode of System Component

42 UNT-SVX07D-ENInstallation—GeneralInstalling the UnitFollow the procedures below to install the unit properly. Refer to “Dimensions and Weights,” p

Installation—GeneralUNT-SVX07D-EN 43 1. Insert the mounting bolts through the panel brackets of the trim ring and secure to the hanger holes on the un

Installation—General44 UNT-SVX07D-ENInstallation ChecklistThe following checklist is only an abbreviated guide to the detailed installation procedure

UNT-SVX07D-EN 45 Installation—ControlsControl sensor options include both unit-mounted (factory-installed) and wall-mounted sensors. Installation inst

Installation—Controls46 UNT-SVX07D-ENInstalling Wall-Mounted Wired SensorsReference the wall-mounted zone sensor dimensions in Figure 16, p. 46. Posi

Installation—ControlsUNT-SVX07D-EN 47 • Metal barriers between the receiver and the sensor (for example, plastered walls with metal lathe or metal roo

Installation—Controls48 UNT-SVX07D-EN7. To replace the cover:a. Hook the cover over the top of the back plate. Apply light pressure to the bottom of

UNT-SVX07D-EN 49 Installation—ElectricalUnit Wiring DiagramsSpecific unit wiring diagrams, based on unit options ordered, are provided inside each uni

UNT-SVX07D-EN 5 Recommended Communication Wiring Prac-tices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Wiring Installation (Trace

Installation—Electrical50 UNT-SVX07D-ENRecommendation: Do not bundle or run interconnection wiring in parallel with or in the same conduit with any h

Installation—ElectricalUNT-SVX07D-EN 51 Minimum Circuit Ampacity (MCA) and Maximum Fuse Size (MFS) Calculations for Fan-Coils with Single Phase Electr

Installation—Electrical52 UNT-SVX07D-ENTable 12. Force-Flo single stage, low kW electric heat Unit Size Voltage# Wires kWamps/ph kWamps/ph kWamps/ph0

UNT-SVX07D-EN 53 ECM Overview and SetupOverviewThis addendum addresses changes to UniTrane Fan-Coil and Cabinet Heater units, integrating new Trane Br

ECM Overview and Setup54 UNT-SVX07D-ENECM Engine Controller• The ECM engine controls and reports the performance of up to two Trane BLDC motors.• The

ECM Overview and SetupUNT-SVX07D-EN 55 – Standard thermostats put out only “on” signals, however customer may select a normally open valve. A selectab

ECM Overview and Setup56 UNT-SVX07D-EN• Wall-mounted low-voltage fan speed switch inputs to the adapter boards’ terminal strips and 24 Vac tap to fie

ECM Overview and SetupUNT-SVX07D-EN 57 an external potentiometer or rheostat. The 10 Vdc supply supports up to 10 mA draw.TB3 (right five positions) i

ECM Overview and Setup58 UNT-SVX07D-ENThe ECM engine board features a nested menu integrated user interface (UI) that supports:1. Status display for

ECM Overview and SetupUNT-SVX07D-EN 59 RPM Mode RUNNING/ FAN STATUS CONTINUOUS LOOPDisplayed when:1) No error codes are present2) Motor has completed

6 UNT-SVX07D-ENModel Number DescriptionsUniTrane Fan-CoilFollowing is a complete description of the fan-coil model number. Each digit in the model nu

ECM Overview and Setup60 UNT-SVX07D-ENConfiguration parameter and value display and modification changesThe ECM engine board’s on-board user interfac

ECM Overview and SetupUNT-SVX07D-EN 61 Configuration Use ExamplesExample 1. To view the value of parameters without saving. In this case we wish to v

ECM Overview and Setup62 UNT-SVX07D-ENError CodesDisplayed during abnormal operation.Indicates a locked rotor condition of Motor 1. The motor wil

ECM Overview and SetupUNT-SVX07D-EN 63 Initial Setup and ConfigurationAfter connections of power and hookup of customer installed controls/fan speed s

ECM Overview and Setup64 UNT-SVX07D-ENcomes standard with three to five field-accessible thermostatic inputs (with adjustable speed), so the use of t

ECM Overview and SetupUNT-SVX07D-EN 65 Use of Potentiometer/Rheostat For VSPA courtesy 10-Vdc supply is provided that can support a 10-mA draw. The us

ECM Overview and Setup66 UNT-SVX07D-ENThe ECM engine board provides additional temperature controlled logic to help coordinate certain electric-heat

ECM Overview and SetupUNT-SVX07D-EN 67 changeover and electric heat lockout function may not work correctly unless the ECM engine board is configured

ECM Overview and Setup68 UNT-SVX07D-ENb. The input impedance of the thermistor circuit must be set correctly (the  parameter should be set to 

ECM Overview and SetupUNT-SVX07D-EN 69 Configuration Settings of the ECM Engine BoardNote: The engine board functions and unit specific settings are s

Model Number DescriptionsUNT-SVX07D-EN 7 Digits 21, 22, 23 — Electric Heat kW — ( ) = 208V Derate000 = No Electric Heat010 = 1.0 kW (0.75 kW)015 = 1.5

ECM Overview and Setup70 UNT-SVX07D-ENTable 18. Configuration settings of the ECM engine board Description on Unit LabelUser Interface NameTypical Us

ECM Overview and SetupUNT-SVX07D-EN 71 Mt2 Ovspd RPM Selects the rpm above which the Motor 2 will be assumed to be in an overspeed condition

ECM Overview and Setup72 UNT-SVX07D-ENFan Speed Response Verification1. After performing controller specific commissioning, observe the display on th

UNT-SVX07D-EN 73 Wired Controllers—Communication WiringWiring Installation (ZN510 and ZN520)Tracer ZN510 and ZN520 controllers are LonTalk® devices th

Wired Controllers—Communication Wiring74 UNT-SVX07D-ENWiring Overview OutlineGeneral InstructionsConformance to Regulatory StandardsAll wiring must c

Wired Controllers—Communication WiringUNT-SVX07D-EN 75 Note: The BACnet Device ID is displayed as the Software Device ID on the Tracer TU Controller S

Wired Controllers—Communication Wiring76 UNT-SVX07D-ENTransformer RecommendationsA 24Vac power supply must be used for proper operation of the binary

Wireless SensorsUNT-SVX07D-EN 77 Wireless SensorsNote: Receivers ship installed on the unit. To remove the receiver, press in the retention tabs on th

Wireless Sensors78 UNT-SVX07D-ENNote: Do not use 000 as an address. An address of 000 removes all association knowledge, reverts the sensor to a low-

Wireless SensorsUNT-SVX07D-EN 79 Configuring the Wireless Display Sensor (Model WDS only)Note: Sensors shipped with the fan-coil are pre-configured fo

Model Number Descriptions8 UNT-SVX07D-ENDigit 34 0 = NoneDigit 35 — Control Function #30=None2 = Condensate Overflow DetectionDigit 36 — Control Func

Wireless Sensors80 UNT-SVX07D-ENThe display will change to configuration mode. When the sensor is in configuration mode, a wrench symbol appears on t

Wireless SensorsUNT-SVX07D-EN 81 4. Review the display to ensure that you have selected the correct configuration.5. To return the display to operati

Wireless Sensors82 UNT-SVX07D-ENLocking or Unlocking Settings. You can lock or unlock the setpoint, system, or fan setting to prevent changes.To loc

Wireless SensorsUNT-SVX07D-EN 83 • The receiver conducts an energy scan for 20 seconds to determine the clearest channel on which to operate.• LED3 fl

Wireless Sensors84 UNT-SVX07D-ENSome systems allow you to select both heating and cooling room temperature settings. If your system has this option,

Wireless SensorsUNT-SVX07D-EN 85 Testing Signal StrengthTesting Battery StatusWireless Sensor SpecificationsThe following table presents specification

Wireless Sensors86 UNT-SVX07D-ENThe following table presents agency compliance information for wireless sensor set models as shown. United States com

UNT-SVX07D-EN 87 Pre-StartPre-Startup ChecklistComplete this checklist after installing the unit to verify all recommended installation procedures are

88 UNT-SVX07D-ENStartupTracer ZN510 and ZN520 Unit StartupRefer to the Trane publication, CNT-IOP-1 (ComfortLink 10 Controller: Installation, Operati

StartupUNT-SVX07D-EN 89 Fan Mode Switch OperationOffFan is turned off, two-position damper option spring-returns closed.Hi, Med, LoFan runs continuous

UNT-SVX07D-EN 9 General InformationUniTrane fan-coil and Force-Flo units are intended for single zone applications. These units have load capabilities

Startup90 UNT-SVX07D-ENIf the correct water temperature is available, the unit begins normal heating or cooling operation. If the measured entering w

StartupUNT-SVX07D-EN 91 Zone Sensors (Tracer ZN010 and ZN510)The zone sensors available with the Tracer ZN010 and ZN510 provide up to three different

Startup92 UNT-SVX07D-ENTracer ZN520 Sequence of OperationThe Tracer ZN520 operates the fan in the following modes:1. occupied2. unoccupied3. occupied

StartupUNT-SVX07D-EN 93 Tracer Summit with Supply Fan Control (Tracer ZN520)If the unit is communicating with Tracer Summit and the supply fan control

Startup94 UNT-SVX07D-ENlonger. At 100 percent capacity, the heating valve is fully open (modulating valves) or on continuously (two-position valves).

StartupUNT-SVX07D-EN 95 the local zone sensor module, a communicated request, or the default fan speed (off).If both a zone sensor module and communic

Startup96 UNT-SVX07D-ENthe economizer enable setpoint (absolute dry bulb), the controller modulates the outdoor air damper (between the active minimu

StartupUNT-SVX07D-EN 97 Binary Outputs (Tracer ZN520)Binary outputs are configured to support the following:• Three fan stages (when one or two fan st

Startup98 UNT-SVX07D-ENcontroller ignores the hard-wired space temperature input and uses the communicated value. External Setpoint Adjustment (Trace

StartupUNT-SVX07D-EN 99 UC400 Sequence of OperationThe UC400 controller will operate to maintain the space temperature setpoint. This section provides