Trane UNT-SVX07A-EN, UniTrane Fan-Coil & Force Flo Air Conditioners manual General, Model Number

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general information

General

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 I-GI-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. Also, these units feature a variety of factory mounted piping packages.

Units with the three-speed fan switch only, are available with the switch mounted on the unit, or shipped sepa- rately, to be mounted in the occupied space. The unit mounted three-speed

switch option, can be ordered with a low voltage(24 volts AC) transformer and three fan speed relays. The ship seperate three-speed switch option, only comes with a low voltage (24 volt AC) trans- former and three fan speed relays.

The Tracer ZN010, ZN510, and ZN520 controllers are included inside the units control box assembly. These controllers utilize analog signals from a unit-mounted control device or from a control device mounted in the occupied space.

The controls interface option, includes a 24 volt AC transformer, and an interface terminal board. Controls provided by an external source, can be tied into the interface terminal board, utilizing 1/4" female spade connectors.

Model Number

Each UniTrane fan-coil and Force-Flo cabinet heater has a multiple character model number unique to that particular unit. To determine a unit’s specific options, reference the model number on the unit nameplate on the fan scroll. The unit nameplate also identifies the serial number, sales order number, and installation and operating specifications.

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.

Factory installed and tested controls

Removable, noncorrosive, positively-sloped drain pan that’s easy to clean

Easy to remove fan assembly

16-gage steel construction

Smaller unit footprint

 

Factory assembled,

 

installed and tested piping

 

 

package with IAQ drain pan

 

Two, three or

to collect condensate

Quiet operation

 

four-row coils

 

Cleanable closed- cell insulation (non- fiberglass)

Easy filter access

Damper allows up

without front panel

to 100% fresh air

removal

 

Figure I-GI-1. UniTrane fan-coil unit components. Vertical cabinet model is shown.

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UNT-SVX07A-EN

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Contents Installation, Operation, and Maintenance Models FC & FF ZO and later design sequenceGeneral information Common Hvac AcronymsContents General Model NumberGeneral Model Number DescriptionDigit 28 auxiliary control valve 0 = none Digit 29 piping packages 0 = noneDigit 30 control type 0 = none Digit 31 control optionTable I-GI-1. Fan-coil component data Table I-GI-2. Low vertical fan-coil component dataAvailable Models Model E horizontal recessedModel K low vertical cabinet Model M inverted vertical cabinetFactory-Installed Piping Packages Dimensions Installation WeightsVertical Concealed Unit Dimensions & weights, in-lbs Vertical Concealed, Model aVertical Cabinet Unit Dimensions, in-lbs Vertical Cabinet, Model BHorizontal Concealed Unit Dimensions, in-lbs Horizontal Concealed, Model CHorizontal Cabinet Unit Dimensions, in-lbs Horizontal Cabinet, Model DHorizontal Recessed Unit Dimensions, in-lbs Installation Dimensions WeightsHorizontal Recessed, Model E Vertical wall hung cabinet unit dimensions & weights, in-lbs Vertical Wall Hung Cabinet, Model FVertical Recessed Unit Dimensions, in-lbs Vertical Recessed, Model HVertical Slope Top Unit Dimensions, in-lbs Vertical Slope Top, Model JLow Vertical Concealed Unit Dimensions, in-lbs Low Vertical Concealed, Model KLow Vertical Cabinet Unit Dimensions, in-lbs Low Vertical Cabinet, Model LInverted vertical cabinet unit dimensions & weights, in-lbs Inverted Vertical Cabinet, Model MInverted vertical recessed unit dimensions & weights, in-lbs Inverted Vertical Recessed, Model NFan-Coil Coil Connections Vertical Units Horizontal Units Force Flo Coil Connections Vertical Units Horizontal Units Inverted UnitsFresh Air Opening Dimensions, Horizontal Units Fresh Air Opening Dimensions, Vertical Units Wall Box Dimensions Wall BoxProjection Panel Dimensions Projection PanelPre-installation Installation considerations Installation PreparationReceiving and Handling Jobsite StorageService Access Pre-Installation ChecklistConnecting field piping to coil MechanicalDuct Connections Piping ConsiderationsCondensate Drain Venting the Hydronic Coil Figure I-MR-4. Close-up view of the changeover sensorBalancing The Manual Circuit Setter Valve Figure I-MR-8. Manual circuit setter valveMechanical Code of System Components in Piping Diagram Steam PipingUnit Wiring Diagrams Supply Power WiringWall Mounted Control Interconnection Wiring ElectricalTable I-ER-2. Low vertical free discharge motors, 115 volt Table I-ER-3. Decimal to fractional HP kW conversionTable I-ER-8. Fan-coil electric heat kW Table I-ER-9. Electric heat kWTable I-ER-10. Force Flo single-stage, max kW electric heat Table I-ER-11. Force Flo single stage, low kW electric heatTable I-ER-12. Force Flo 2-stage electric heat Installation Installing the UnitUnit Leveling Figure I-IP-3. Zone sensor with on/cancel Comm jack Figure I-IP-5. Zone sensor onlyInstalling Wall Mounted Controls Wiring InstructionsFan Mode Switch Installation Zone Sensor InstallationInstallation Checklist Unit LevelingCommunication Wiring Recommended Communication Wiring PracticesPre-startup Device AddressingPre-Startup Checklist Installation startup Tracer ZN510 & ZN520 Unit StartupManual Fan Mode Switch General Operation informationGeneral Information Relay BoardFan Mode Switch Operation SequenceTracer ZN010 & ZN510 Operation Tracer ZN520 OperationBinary Inputs Binary OutputsFan Mode Switch Analog InputsZone Sensors Supply Fan OperationTracer ZN520 Sequence of Operation Heating Operation Cooling OperationDischarge Air Tempering Fan Mode Operation Continuous Fan OperationFan Start on High Speed Electric Heat OperationManual Fresh Air Damper Economizer Damper OptionTable O-SO-12. Binary input configurations Table O-SO-13. Binary output configurationData Sharing Binary OutputsTable O-SO-14. Analog inputs Table O-SO-15. Analog inputsFan Switch On/Cancel ButtonsTable O-SO-16. Zone sensor wiring connections Zone SensorMaintenance diagnostics Table M-D-1. Tracer ZN520 DiagnosticsTranslating Multiple Diagnostics Resetting DiagnosticsDiagnostic Reset Cycling the Fan SwitchTable M-D-4. Valves Stay Closed Table M-D-3. Fan outputs do not energizeTable M-D-5. Valves Stay Open Table M-D-7. Fresh Air Damper Stays Open Table M-D-6. Electric Heat Not OperatingTable M-D-8. Fresh Air Damper Stays Closed Maintenance troubleshooting Troubleshooting the Relay BoardSwitch SW1 Controller Type Switch SW2 Electric HeatTroubleshooting Tracer ZN010, ZN510 & ZN520 Red Service LEDGreen Status LED Yellow Comm LEDTable M-T-1. Test sequence for 1-heat/1-cool configurations BOP5 BOP6Maintenance Procedures MaintenanceMain Drain Pan Steam and Hydronic Coil Cleaning Procedure Coil MaintenanceWinterizing the Coil Control Device Replacement Replacing the MotorPeriodic Maintenance Checklists Monthly ChecklistMonthly Maintenance Annual MaintenanceTypical wiring Csti Fan Speed SwitchCsti Non Fan Speed Switch Line voltage fan speed switch Tracer ZN010 with electric heat Tracer ZN510 with main and auxilliary valves ZN520 with 2-stage electric heat Page Page Page PL-TD-UNT-SVX07A-EN