Trane BCVC, BCHC Coil Maintenance, Potential unit damage from coil cleaners, Hazardous chemicals

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Maintenance

Coil Maintenance

Keep coils clean to maintain maximum performance. For operation at its highest efficiency, clean the coil often during periods of high demand or when dirty conditions prevail. Clean the coil a minimum of once per year to prevent dirt buildup in the coil fins, where it may not be visible.

Remove large debris from the coils and straighten fins before cleaning. Remove filters before cleaning. Rinse coils thoroughly after cleaning. Clean the coil fins using one of these methods:

steam with detergent

hot water spray and detergent

commercially available chemical coil cleaner

NOTICE

Potential unit damage from coil cleaners!

Do not use acidic chemical coil cleaners. Also, do not use alkaline chemical coil cleaners with a pH value greater then 8.5 (after mixing) without using an aluminum corrosion inhibitor in the cleaning solution. Using these types of cleaners could result in equipment damage.

Inspecting and Cleaning Coils

Coils become externally fouled as a result of normal operation. Dirt on the coil surface reduces its ability to transfer heat and can cause comfort problems, increased airflow resistance and thus increased operating energy costs. If the coil surface dirt becomes wet, which commonly occurs with cooling coils, microbial growth (mold) may result, causing unpleasant odors and serious health-related indoor air quality problems.

Inspect coils at least every six months or more frequently as dictated by operating experience. Cleaning frequently is dependent upon system operating hours, filter maintenance, and efficiency and dirt load. Follow is the suggested method below:

Steam, Hot Water, and Cooling Coil Cleaning Procedure

1.Don the appropriate personal protective equipment (PPE).

2.Gain access to both sides of the coil section.

3.Use a soft brush to remove loose debris from both sides of the coil.

4.Use a steam cleaning machine, starting from the top of the coil and working downward. Clean the leaving air side of the coil first, then the entering air side.

Use a block-off to prevent steam from blowing through the coil and into a dry section of the unit.

5.Repeat Step 4 as necessary. Confirm that the drain line is open following completion of the cleaning process.

6.Allow the unit to dry thoroughly before putting the system back into service.

7.Straighten any coil fins that may be damaged with a fin rake.

8.Replace all panels and parts and restore electrical power to the unit.

9.Ensure that contaminated material does not contact other areas of the unit or building. Properly dispose of all contaminated materials and cleaning solutions.

WARNING

Hazardous chemicals!

Coil cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as required. For personal safety refer to the cleaning agent manufacturer’s Materials Safety Data Sheet and follow all recommended safe handling practices. Failure to follow all safety instructions could result in death or serious injury.

BCXC-SVX01B-EN

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Contents April Blower Coil Air HandlerRefrigerant warning information Environmental ConcernsResponsible Refrigerant Practices Hazard of Explosion and Deadly Gases Trademarks About This ManualTable of Contents BCXC-SVX01B-EN Digits 1, 2, 3, 4 Unit Model Digit 16 Motor HorsepowerDigits 5, 6, 7 Unit Size Digit 8 Unit VoltageModel Number Description Blower Coil General Information General InformationGeneral Information Pre-Installation Receiving and HandlingJobsite Storage Recommendations Service Access Installation PreparationPre-Installation Unit size Dimension aRigging and Handling Unit Handling ProcedureImproper Unit Lift Unit Location RecommendationsSkid Removal Pre-Installation ChecklistHorizontal blower coil dimensions in. and weights lb Dimensions and WeightsUnit Size RH LH Weight Horizontal Blower CoilVertical blower coil dimensions in. and weights lb Dimensions and WeightsUnit Size Weight Vertical Blower CoilAngle filter and mixing box dimensions in. and weights lb Angle Filter and Mixing BoxUnit size AIR Flow Filter Filter Access Panel Bottom or Top Access Filter BoxElectric Heat Electric heat dimensions in. and weights lbSteam Coil Steam coil box dimensions in. and weights lbCoil Connections, NPT Supply ReturnHydronic coil connection sizes, OD Coil ConnectionsDX coil connection sizes, OD Steam coil connection sizes, female connection, NPTBasic Piping Piping PackagesDimensions and Weights Deluxe Piping Actual size Piping NominalInstalling Wall Mounted Controls Installation ControlsZone Sensor Installation Wiring InstructionsInstallation Controls Communication WiringService Communication Wiring Zone Sensors Without Interconnecting WiringTracer Summit Communication Wiring Installation Electrical Zone sensor maximum wiring distances, ft m Installation ElectricalWire size range Max. wiring distance Electrical Grounding Restrictions Hazardous VoltageUseful Formulas Available electric heat, min-max kWUnit size Voltage Motor electrical data 240/50/1 220/50/1190/50/3 380/50/3Installing the Unit Installation MechanicalBchc Installation Procedure Horizontal Units, Model BchcVertical Units, Model Bcvc Installation MechanicalMixing Box Option Heating Coil OptionMixing Box Installation Procedure Linkage Installation ProcedureCondensate Drain Connections Duct Connections Recommended drain trap installation for draw-through unitsWater Coil Connections Installation PipingPotential coil-freeze condition Refrigerant Coil PipingInstallation Piping Valve DamageSuction Line Field-installed evaporation piping example Field-Installing Evaporator PipingCoil Condensate Steam PipingGeneral Steam CoilsType NS steam coils, horizontal tubes for horizontal airflow Controls Interface Control OptionsTracer Controllers Controls Interface Rover Service SoftwareTracer controller input/output summary Tracer controller ZN010 ZN510 ZN520Tracer controller function summary End Device Option AvailabilityTracer Control Device ZN010 Tracer ZN510 Tracer ZN520 Pre-Start Pre-Start ChecklistReceiving Unit LocationDuctwork Pre-Start Component OverviewUnit Piping ElectricalStart-Up Sequence of OperationTracer ZN Controller Sequence of Operation Unoccupied Mode Occupied ModeSensor type Sensor position Unit occupancy mode Start-UpOccupied Standby Mode Tracer ZN510 or ZN520 only Cooling OperationOccupied Bypass Mode, Tracer ZN510 or ZN520 Only DX Cooling Tracer ZN520 only Start-Up Economizer Cooling Tracer ZN520 OnlyDischarge Air Tempering Tracer ZN520 Only Heating OperationTracer ZN520 fan configuration Fan Mode Operation Rotating ComponentsAuto fan operation Fan speed default Fan sequence of operationTracer ZN010 and ZN510 Fan Speed SwitchTracer ZN520 Continuous Fan OperationFan mode operation, Tracer ZN010 and ZN510 Fan Off DelayStart-Up Fan Cycling Operation Fan Start on High SpeedLocal fan switch enabled Entering Water Temperature Sampling FunctionTwo- and Four-Pipe Changeover Operation Fan operation in heating and cooling modesUnit type EWT sensor required? Coil water temperature Unit mode as related to water temperatureElectric Heat Operation Economizer Damper Tracer ZN520 OnlyTracer Dehumidification Tracer ZN520 Only BIP1 Low Temperature Detection OptionData Sharing Tracer ZN510 or ZN520 Only Binary InputsBIP2 Condensate Overflow Detection Option Binary input configurationsBIP3 Occupancy Sensor BIP4 Fan Status ZN520 OnlyBinary Outputs Analog InputsAnalog inputs Analog input Terminal Function Range ZN010 ZN510 ZN520Binary output configuration Space Temperature MeasurementZone sensor wiring connections Zone SensorExternal Setpoint Adjustment Fan Mode SwitchFan Switch Local SetpointCommunication Jack On/Cancel ButtonsMaintenance Procedures MaintenanceFan Assembly Set Screws MaintenanceFan Belt Tension Torque in.-lb Ft-lbBCBH/BCVC valve package waterflow limits Belt tensionBCHC/BCVC coil general data Hydronic coil dataRow coil Steam coil data Drive data Unit Motor Motor sheave Fan sheave Belt1750 1450 Size Watts Browning Trane 60 Hz 50 Hz Potential unit damage from coil cleaners Coil MaintenanceInspecting and Cleaning Coils Steam, Hot Water, and Cooling Coil Cleaning ProcedureRotating parts Periodic Maintenance ChecklistsMaintenance Diagnostics TroubleshootingLED Activity Diagnostics Manual Output Test ProcedureManual Output Test Translating Multiple Diagnostics DiagnosticsTracer ZN520 test sequence Fan Cool output a Heat output Damper Steps J1-1, J1-3Automatic Reset by the Controller Resetting DiagnosticsCycling Power Diagnostics Manual Output TestRover Service Tool Diagnostic Reset Tracer ZN510 or ZN520 OnlyTracer ZN520 diagnostics Tracer ZN010 and ZN510 controller diagnosticsDiagnostic Latching Fan Valves Electric heat Damper Diagnostic Fan Other outputsaFan outputs do not energize Common DiagnosticsValves stay closed Probably cause ExplanationValves stay open Electric heat not operatingFresh air damper stays closed DX or electric outputs do not energize Fresh air damper stays openTwo-Pipe Bcxc with Tracer ZN510 Wiring DiagramsFour-Pipe Bcxc with Tracer ZN510 Wiring DiagramsFour-Pipe Bcxc with Tracer ZN510 Two-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Tracer ZN520 Four-Pipe Bcxc with Control Interface Four-Pipe Bcxc with Control Interface Bcxc with DX Coil and Tracer ZN520 Field Installed DeviceBcxc with DX Coil, Hydronic Heating, and Tracer ZN520 BCXC-SVX01B-EN