Trane SCXG-SVX01B-EN manual Programming theTime Clock Option, Setting theTime, Manual Override

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Installation programming

Programming theTime Clock Option

Setting theTime

Important: Depress the reset key before

beginning to set time and program.

1.Select military (24:00 hr.) or AM/PM (12:00 hr.) time mode by depressing and holding the “h” key while pressing “+ 1h” key to toggle between military and AM/PM. (AM appears in the display when in AM/PM mode.)

2.Press and hold down “Ÿ” key.

3.If setting the time when daylight savings time is in effect, press “+ 1h” key once (+ 1h will appear in display).

4.Set hour with “h” key. If AM or PM does not appear in display, the unit is in military time. See note above to change display.

5.Set minutes with “m” key.

6.Press “Day” key repeatedly to the day of the week. (1 is Monday, 7 is Sunday)

7.Release “Ÿ” key, colon will begin flashing.

Note: If keys h + or m + are kept depressed for longer than 2 seconds, a rapid advance of figures will result.

The “Digi 20” electronic time switch is freely programmable for each day of the week in one minute increments. For easy and quick programming, the following 4 block programs are available:

Monday through Sunday

Monday through Saturday

Monday through Friday

Saturday and Sunday

Programming

Follow the instructions below for programming the time clock.

1.Press “Prog.” key. 1234567 AM—:— will appear in display. (Pressing “Prog.” key again, display will show the number of free programs “Fr 20”). Press again to RETURN to 1st program.

2.Press “%” key, “~” ON symbol will

appear. Pressing the key again will toggle to OFF “€”. Select ON or OFF for the program.

3.Press “h+” to select hour for switching time.

4.Press “m+” to select minute for switching time.

5.If the program is to occur every day of the week, (24 hour time control) ignore “Day” key and press “Prog.” key to advance to program.

6.For 7 day time control, press “Day” key. 1 2 3 4 5 6 (Monday through Saturday) block of days appears in display. Pressing “Day” key again, 1 2 3 4 5 (Monday through Friday) appears in display. Repeated presses will cycle through all days of the week and back to 1 through 7 (Monday through Sunday). Select day or block of days desired.

7.Press “Prog.” key and repeat steps 2 through 6a to enter additional programs of ON and OFF times. (Note that more than one OFF time may be programmed, enabling automatic control or manual overrides.)

8.Press “Ÿ” key to enter run mode.

To review and change programs:

1.To review a program at any time, press “Prog.” key. Programs display in the sequence they were entered with repeated presses of “Prog.” key.

2.To change a program, select that program as outlined in step 1. Enter the time of day and days of week just as in the programming steps above. The old program is overwritten with the new selections. Press “Prog.” to store the new program.

3.To delete an individual program, select the program as in step 1 and press “h” and “m” keys until “—:—” appears in the display. Press either “Prog.” or “¹” key until “—:—” flashes. The program is deleted after a few seconds.

Manual Override

While in the “run” mode (“Ÿ” symbol is displayed), pressing the “%” key will reverse the load status (switch load off if it is on, or switch it on if it is off). A hand symbol appears in the display to indicate the override is active. At the next scheduled switching time, automatic time control resumes, eliminating the override.

Pressing the “%” key a second time “[~]” appears in the display indicating the load is permanently on.

Pressing the “%” key a third time “[€]” appears in the display indicating the load is permanently off.

Pressing the “%” key a fourth time returns to automatic, “%” appears in the display.

All days shown in the respective blocks will switch on (or off) at the selected hour and minute.

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SCXG-SVX01B-EN

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Contents JO and later design sequence ModelsSpecial Note on Refrigeration Emissions IntroductionHazard Identification HazardousVoltage w/CapacitorsContents Features and Benefits Refrigerant Handling ProceduresModular Series Self-Contained Unit Components Installation information Unit NameplateModel Number Description Scwg Model Number DescriptionDigit Digit 31 Compressor ServiceValvesDigit 22 Unit Finish Digit 24 Unit ConnectionSelf-Contained Ship-WithAccessory Model Number Description Model Number Description PswgAfter-ShipmentAccessory Model Number Receiving and Handling Shipping PackageInstallation Preparation Section ServiceAccessTable I-PC-1. Service and code clearance requirements TopView CCRC/CIRC 20, 29Rigging and Unit Handling Lifting Equipment CapacityUnit Handling Procedure Figure I-PC-7.Assembled modular unit proper riggingRemove panels FML, FMM, and FMR Split-Apart Unit AssemblyIntelliPak UnitsUCM Only Units with Thermostat OnlyFigure I-PC-9 How to assemble the split apart modular unit Pre-Installation Checklist Skid RemovalExternal Unit Isolation SCWG/SIWG Dimensions, DimensionsWeights Left-side viewSCRG/SIRG Dimensions, SCRG/SIRGWeight, lbsLeft-side View Right-side view Top view Dimensions Weights Detail Dimensions,CCRC/CIRC Electrical connections, CCRC/CIRC Air-cooled condenser dimensions & weight, in-lbsCCRC/CIRC -Air-Cooled Condenser CCRC/CIRC Refrigerant connections,Hot water coil dimensions & weight, in-lbs Hot Water CoilSteam coil dimensions, in-lbs Steam CoilElectric heat coil dimensions & weight, in-lbs Electric Heat CoilFlexible Horizontal Discharge Plenum Waterside economizer weight, in-lbs Waterside EconomizerAirside economizer dimensions & weight, in-lbs Airside EconomizerDetail a Detail B Control and LineVoltage Dimensions Weights VFDVariable Frequency Drive Option VFD Result in death or serious injury Mounting RequirementsElectrical Installation Procedure VFD with bypass dimensions,Variable Frequency Drive with Bypass Water Piping Mechanical SpecificationsDuct Connections Hazardous Voltage w/Capaci- torsWaterside Piping Arrangements Table I-MR-1. Water Connection SizesBrazing Procedures Refrigerant Piping Air-Cooled Units OnlyHazard of Explosion and Deadly Gases Live Electrical Components Unit Wiring DiagramsSupply PowerWiring Equipment DamageSelection Procedures Supply Fan Isolators Installation requirementsPre-Startup Procedures Shipping bracketFigure I-PR-3. Correct plenum insulation placement Field Wiring Connections Airside Economizer InstallationUnit Installation Unit HandlingStatic PressureTransducer Installation VAV units only Installing theTransducerTransducer Location Waterside Economizer Installation Procedure Figure I-PR-7. Installing the waterside economizerTubing 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 CV Unit Zone Sensor Options Standard with All IntelliPak UnitsZone Sensor Options for IntelliPak Control Units BAYSENS077* DescriptionBAYSENS074 Description CV andVAV Unit Zone Sensor OptionsVAV Unit Zone Sensor Option BAYSENS073 DescriptionMounting Location Zone Sensor InstallationWiring Mounting the SubbaseRight Mounting Directly to the Wall Mounting to Junction Box ConstantVolume Zone Sensor BAYSENS019 Description Variable AirVolume Zone Sensor BAYSENS020B DescriptionProgrammable Zone Sensors Programmable Zone Sensor Installation Airflows from adjacent zones or other unitsWiring theTimeclock Time Clock InstallationTime Clock Installation Checklist Time Clock OptionRemote Human Interface Panel Remote Human Interface Panel InstallationHuman Interface HI Panel Location RecommendationsProcedure Mounting the Remote Human Interface RHI PanelWall Mounting the RHI Panel Pre-startup Communication Link ShieldedTwisted PairWiring Wiring the Remote Human InterfaceLowVoltage AC FieldWiring Connections Interprocessor Communication Bridge ModuleWiringConnecting toTracer Summit Pre-Startup ChecklistInstallation programming Programmable Zone Sensor OptionsHeat supply air Cool supply air Warmup temperature During Programming IndicatesKeypad Operation Keypad Lockout Temporary Manual OverrideTime Button Up and Down Button ArrowsTemporary Override Run Mode Figure I-P-6.Temporary manual override menu screenFigure I-P-7.Temporary manual override run mode screen Table I-P-1. Zone sensor BAYSENS019 option menu settingsTo use Intelligent Copy Remote Panel Indicator Signals From UCM to ZSMIntelligent Copy Off FlashingIcon Descriptions Figure I-P-9.BAYSENS019 complete icon displayFigure I-P-10.BAYSENS020 complete icon display Programming Setting theTimeProgramming theTime Clock Option To review and change programsPre-Startup Checklist Installation startupUnit Startup Procedures Compressor DamageStartup Log EvaporatorCompressor Amp Draw Water Cooled Units Air Cooled UnitsPoints List Ecem Module Points List RTM ModulePoints List Gbas Module Points List -TracerTMLCI-I ModuleUnit Control Components RTM Module Board Standard on all UnitsTable 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 Purge sequence D Supply fan on Supply fan VFD on if equippedGeneric BuildingAutomation System Module Option Table O-GI-6. Gbas analog input setpoints Table O-GI-7. Gbas input voltage corresponding setpointsWaterside Components Figure O-GI-3. Basic water piping, constant water flow UnitAirside Components General Operation information Airside Economizer Interface with Comparative Enthalpy Air-Cooled CondensersInput Devices and System Functions ProperWaterTreatmentSupply Airflow Proving Switches Return AirTemperature SensorSupply Air Temperature Sensor Filter SwitchUnoccupied Sequence of Operation Operation operationControl Sequences Operation Tracer Summit SystemMorning Warmup Cycling Capacity Morning Warmup MWUTimed Override Activation ICS Occupied Sequence Water-Cooled Units Only Supply Air Setpoint Reset VAV Units OnlyMechanical Cooling Electric HeatCompressors Compressor Lead/Lag OperationTable O-SO-1. Compressor Stages Step Control Evaporator Coil Frost ProtectionTable O-SO-2. Pressure cutouts Service Valve Option OperationMaintenance information Table M-GI-1. SCWG/SIWG/SCRG/SIRG General Maintenance DataMaintenance 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-2.AO Smith Bearing Lubrication Schedule Fan BearingsTable M-MP-1. Baldor Fan Bearing Lubrication Schedule Table M-MP-3. Compatible Fan Bearing GreaseFan BeltTension Deflection = belt span/64Table M-MP-4. Fan shaft bearing torques Adjusting BeltTension BeltRefrigerant System Confined Space HazardsRefrigerant Evacuation Use of Pressure Regulator Valves Gauges Refrigerant LeakTestingMotor Winding Damage R407cMaintenance Coil Fin Cleaning Proper Coil CleaningAgentInlet GuideVanes Coil Freezeup Cleaning the Flow Switch Chemical Cleaning of Condenser and Economizer CoilFlow Switch Maintenance Piping ComponentsSemi-Annual Maintenance Maintenance Periodic ChecklistsMonthly Checklist Annual MaintenanceCommon Unit Problems and Solutions Check the zone thermostat settingsOperating Procedures System ChecksMaintenance diagnostics DiagnosticsEntering Cond WaterTemp Sensor Fail Heat Module Auxilliary Temperature Sensor FailEmergency Stop Entering Water Temp Sensor FailLow Pressure Control Open Circuit 1, 2, 3, or Mode Input FailureLow Air Temp Limit Trip MCM Communications FailureHumidity Sensor Failure NSB Panel ZoneTemperature Sensor FailureCheck Field/unit wiring between RTM and NSB Panel Temp. Sensor FailureRTM Data Storage Error RTM Zone Sensor FailureSupply Fan Failure Supply Fan VFD Bypass EnabledProblemThe LCI-I has lost communication withTracer Summit LCI-I Module Comm FailureRender all HI keystrokes ineffective VOM Communications FailureWSM Communications Fail WSM Mixed AirTemp Sensor Fail Water Flow 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.

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