Trane SCXG-SVX01B-EN manual Waterside Economizer Installation Procedure

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pre-startup

Installation requirements

Waterside Economizer

Installation Procedure

1.Loosen and pull all end devices that go throught the bushing on the filter rack (upper right corner of rack).

2.Remove the filter rack from the back of

the unit by removing the 1/4” hex head screws from the top and bottom of the filter rack assembly.The filter rack assembly will hang on the unit when the screws are removed. Remove the filter rack by lifting it up off the unit.

3.Remove the economizer from the crate and position it behind the unit with the headers on the left side, when facing the back of the unit. Remove the plastic envelope that is taped to the economizer box assembly.This envelope contains the gasket that must be installed onto the vertical side flanges of the box.

4.Install the pressure sensitive gasket to the unit side of the vertical flange on the economizer box.

5.Hang the economizer on the unit as shown in Figure I-PR-7. Lift the economizer by using the holes provided in the top panel of the economizer.

6.Align economizer holes with the holes in the unit channel. Install screws in the top (6x) and bottom (6x) of the economizer.

7.Remove the unit’s rear middle panel and unbraze the two copper pipes in

the 2 5/8” water pipe. Do not remove the pipe outlet blockoff panel.

8.Remove the economizer tubing assemblies from the shipping box. Check ship-separate parts against those shown in Figures I-PR-8, I-PR-9, I- PR-10, and I-PR-11. Face the front of the unit to see which side the water pipe exits to determine if the unit has either right or left-hand piping.

9.Assemble tubing as shown in Figure I- PR-8 or I-PR-11.Tack all tubes in place before brazing to ensure proper fit-up. For right-hand piped units, install the ball valve actuator assembly and actuator as shown in Figure I-PR-10. Refer to the unit wiring diagram for wiring connection points.

10.Install the pipe insulation on all pipe line to prevent sweating

11.Install the rear panels.

12.Re-install the filter rack on the back of the economizer coil box and affix with screws provided.

Figure I-PR-7. Installing the waterside economizer.

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Contents Models JO and later design sequenceHazardousVoltage w/Capacitors IntroductionHazard Identification Special Note on Refrigeration EmissionsContents Refrigerant Handling Procedures Features and BenefitsModular Series Self-Contained Unit Components Unit Nameplate Installation informationModel Number Description Model Number Description ScwgDigit 24 Unit Connection Digit 31 Compressor ServiceValvesDigit 22 Unit Finish DigitModel Number Description Pswg Self-Contained Ship-WithAccessory Model Number DescriptionAfter-ShipmentAccessory Model Number Shipping Package Receiving and HandlingInstallation Preparation TopView CCRC/CIRC 20, 29 ServiceAccessTable I-PC-1. Service and code clearance requirements SectionLifting Equipment Capacity Rigging and Unit HandlingFigure I-PC-7.Assembled modular unit proper rigging Unit Handling ProcedureUnits with Thermostat Only Split-Apart Unit AssemblyIntelliPak UnitsUCM Only Remove panels FML, FMM, and FMRFigure I-PC-9 How to assemble the split apart modular unit Pre-Installation Checklist Skid RemovalExternal Unit Isolation Left-side view DimensionsWeights SCWG/SIWG Dimensions,SCRG/SIRG Dimensions, SCRG/SIRGWeight, lbsLeft-side View Right-side view Top view Detail Dimensions, Dimensions WeightsCCRC/CIRC Refrigerant connections, CCRC/CIRC Air-cooled condenser dimensions & weight, in-lbsCCRC/CIRC -Air-Cooled Condenser CCRC/CIRC Electrical connections,Hot Water Coil Hot water coil dimensions & weight, in-lbsSteam Coil Steam coil dimensions, in-lbsElectric heat coil dimensions & weight, in-lbs Electric Heat CoilFlexible Horizontal Discharge Plenum Waterside Economizer Waterside economizer weight, in-lbsAirside economizer dimensions & weight, in-lbs Airside EconomizerDetail a Detail B Result in death or serious injury Mounting Requirements Dimensions Weights VFDVariable Frequency Drive Option VFD Control and LineVoltageElectrical Installation Procedure VFD with bypass dimensions,Variable Frequency Drive with Bypass Hazardous Voltage w/Capaci- tors Mechanical SpecificationsDuct Connections Water PipingTable I-MR-1. Water Connection Sizes Waterside Piping ArrangementsBrazing Procedures Refrigerant Piping Air-Cooled Units OnlyHazard of Explosion and Deadly Gases Equipment Damage Unit Wiring DiagramsSupply PowerWiring Live Electrical ComponentsSelection Procedures Shipping bracket Installation requirementsPre-Startup Procedures Supply Fan IsolatorsFigure I-PR-3. Correct plenum insulation placement Unit Handling Airside Economizer InstallationUnit Installation Field Wiring ConnectionsStatic PressureTransducer Installation VAV units only Installing theTransducerTransducer Location Figure I-PR-7. Installing the waterside economizer Waterside Economizer Installation ProcedureTubing assemblies for waterside econo Mizer left-hand piping Waterside Economizer Ship-Separate Parts List Hydronic Coil Installation Installation ProcedureUnit Structural Integrity Electric Heat Installation Electric Heat CoilWiring ProcedureTable I-PR-2.Available Electric Heat kW BAYSENS077* Description Standard with All IntelliPak UnitsZone Sensor Options for IntelliPak Control Units CV Unit Zone Sensor OptionsBAYSENS073 Description CV andVAV Unit Zone Sensor OptionsVAV Unit Zone Sensor Option BAYSENS074 DescriptionMounting the Subbase Zone Sensor InstallationWiring Mounting LocationRight Mounting Directly to the Wall Mounting to Junction Box ConstantVolume Zone Sensor BAYSENS019 Description Variable AirVolume Zone Sensor BAYSENS020B DescriptionProgrammable Zone Sensors Airflows from adjacent zones or other units Programmable Zone Sensor InstallationTime Clock Option Time Clock InstallationTime Clock Installation Checklist Wiring theTimeclockLocation Recommendations Remote Human Interface Panel InstallationHuman Interface HI Panel Remote Human Interface PanelProcedure Mounting the Remote Human Interface RHI PanelWall Mounting the RHI Panel Pre-startup Interprocessor Communication Bridge ModuleWiring Wiring the Remote Human InterfaceLowVoltage AC FieldWiring Connections Communication Link ShieldedTwisted PairWiringPre-Startup Checklist Connecting toTracer SummitProgrammable Zone Sensor Options Installation programmingDuring Programming Indicates Heat supply air Cool supply air Warmup temperatureKeypad Operation Up and Down Button Arrows Temporary Manual OverrideTime Button Keypad LockoutFigure I-P-6.Temporary manual override menu screen Temporary Override Run ModeTable I-P-1. Zone sensor BAYSENS019 option menu settings Figure I-P-7.Temporary manual override run mode screenOff Flashing Remote Panel Indicator Signals From UCM to ZSMIntelligent Copy To use Intelligent CopyFigure I-P-9.BAYSENS019 complete icon display Icon DescriptionsFigure I-P-10.BAYSENS020 complete icon display To review and change programs Setting theTimeProgramming theTime Clock Option ProgrammingCompressor Damage Installation startupUnit Startup Procedures Pre-Startup ChecklistStartup Log EvaporatorCompressor Amp Draw Air Cooled Units Water Cooled UnitsPoints List -TracerTMLCI-I Module Points List RTM ModulePoints List Gbas Module Points List Ecem ModuleRTM Module Board Standard on all Units Unit Control ComponentsTable O-GI-2. RTM sensor resistance vs. temperature VAV Box OptionTable O-GI-3. RTM setpoint analog inputs Human Interface Module Standard on all Units Heat ModuleVentilation Override Module VOM Option Supply fan on Supply fan VFD on if equipped Purge sequence DGeneric BuildingAutomation System Module Option Table O-GI-7. Gbas input voltage corresponding setpoints Table O-GI-6. Gbas analog input setpointsWaterside Components Figure O-GI-3. Basic water piping, constant water flow UnitAirside Components General Operation information Air-Cooled Condensers Airside Economizer Interface with Comparative EnthalpyProperWaterTreatment Input Devices and System FunctionsFilter Switch Return AirTemperature SensorSupply Air Temperature Sensor Supply Airflow Proving SwitchesTracer Summit System Operation operationControl Sequences Operation Unoccupied Sequence of OperationMorning Warmup Cycling Capacity Morning Warmup MWUTimed Override Activation ICS Occupied Sequence Electric Heat Supply Air Setpoint Reset VAV Units OnlyMechanical Cooling Water-Cooled Units OnlyCompressors Compressor Lead/Lag OperationTable O-SO-1. Compressor Stages Step Control Evaporator Coil Frost ProtectionTable O-SO-2. Pressure cutouts Operation Service Valve OptionTable M-GI-1. SCWG/SIWG/SCRG/SIRG General Maintenance Data Maintenance informationMaintenance procedures Maintenance ProceduresAir Filters Inspecting and Cleaning the Drain Pan Inspecting and Cleaning the FanRemove all standing water Supply Fan Variable Frequency Drive VFDFan Drive Table M-MP-3. Compatible Fan Bearing Grease Fan BearingsTable M-MP-1. Baldor Fan Bearing Lubrication Schedule Table M-MP-2.AO Smith Bearing Lubrication ScheduleFan BeltTension Deflection = belt span/64Table M-MP-4. Fan shaft bearing torques Belt Adjusting BeltTensionRefrigerant System Confined Space HazardsRefrigerant Evacuation R407c Refrigerant LeakTestingMotor Winding Damage Use of Pressure Regulator Valves GaugesMaintenance Coil Fin Cleaning Proper Coil CleaningAgentInlet GuideVanes Coil Freezeup Piping Components Chemical Cleaning of Condenser and Economizer CoilFlow Switch Maintenance Cleaning the Flow SwitchAnnual Maintenance Maintenance Periodic ChecklistsMonthly Checklist Semi-Annual MaintenanceSystem Checks Check the zone thermostat settingsOperating Procedures Common Unit Problems and SolutionsDiagnostics Maintenance diagnosticsEntering Water Temp Sensor Fail Heat Module Auxilliary Temperature Sensor FailEmergency Stop Entering Cond WaterTemp Sensor FailMCM Communications Failure Mode Input FailureLow Air Temp Limit Trip Low Pressure Control Open Circuit 1, 2, 3, orTemp. Sensor Failure NSB Panel ZoneTemperature Sensor FailureCheck Field/unit wiring between RTM and NSB Panel Humidity Sensor FailureRTM Zone Sensor Failure RTM Data Storage ErrorLCI-I Module Comm Failure Supply Fan VFD Bypass EnabledProblemThe LCI-I has lost communication withTracer Summit Supply Fan FailureRender all HI keystrokes ineffective VOM Communications FailureWSM Communications Fail Water Flow Fail WSM Mixed AirTemp Sensor Fail114 115 Literature Order Number

SCXG-SVX01B-EN specifications

The Trane SCXG-SVX01B-EN is an advanced variable refrigerant flow (VRF) system designed to provide efficient and flexible heating and cooling solutions for commercial and residential applications. This system exemplifies Trane's commitment to innovation, energy efficiency, and ease of installation, making it a standout choice in the industry.

One of the main features of the SCXG-SVX01B-EN is its ability to deliver precise temperature control across multiple zones. The system utilizes a modular design that allows for the connection of multiple indoor units to a single outdoor unit, enabling simultaneous heating and cooling in different areas of a building. This zoned comfort not only enhances occupant satisfaction but also contributes to energy savings by allowing for targeted climate control where it is most needed.

Trane's VRF technology is complemented by its inverter-driven compressors, which adjust their speed according to the demand for heating or cooling. This means that the system operates more efficiently than traditional systems by consuming less energy during partial load conditions. The SCXG-SVX01B-EN also integrates advanced heat recovery capabilities, allowing it to transfer heat from one zone to another, further optimizing energy usage.

The unit's compact design simplifies installation, making it suitable for both retrofit projects and new constructions. The flexible piping layout supports various configurations, allowing easy adaptation to the building's architecture. The model also incorporates intelligent controls, offering a user-friendly interface that enhances operational flexibility and promotes energy management.

In addition to its performance features, the Trane SCXG-SVX01B-EN emphasizes sustainability. It uses advanced refrigerants with low global warming potential (GWP), aligning with environmental regulations and helping to minimize the system's ecological footprint. The durable construction of the system ensures longevity and reliability, reducing maintenance costs and enhancing overall operational efficiency.

Finally, Trane supports its products with comprehensive warranties and a network of service professionals, ensuring that customers have access to expert assistance throughout the life cycle of their system. The SCXG-SVX01B-EN represents a blend of technology, efficiency, and versatility, making it an ideal choice for those seeking an effective heating and cooling solution.
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