Trane PKG-PRC002-EN manual Application Considerations Self-Contained, Return Air Ductwork

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Application

Considerations Self-Contained

Self-Contained Acoustical Recommendations

Successful acoustical results are dependent on many system design factors.

Following are general acoustical recommendations. For more information, or if there is concern about a particular installation, contact a professional acoustical consultant.

Location and Orientation of the Mechanical Equipment Room

Locate the equipment room adjacent to stairwells, utility rooms, electrical closets, and rest rooms if possible (See figure below). This minimizes the acoustic effects and risk of workmanship or installation errors. Place the discharge and return air ductwork over these less acoustically sensitive areas, using vertical or horizontal fresh air shafts. Consult code requirements for fresh air and smoke purge constraints.

Return Air Ductwork

Duct the return air into the mechanical equipment room. Connect ductwork to the unit if local code dictates. The return air ductwork must have an elbow inside the equipment room. This elbow will reduce sound transmissions through the return duct. Extend the ductwork from the elbow far enough to block the “line of sight” to the exterior of the equipment room. Use a minimum ductwork length of 15 feet to the equipment room exterior. Line the duct with two-inch, three-pound density insulation. Use multiple, small return ducts for better acoustical performance to the occupied space.

Supply Air Ductwork

Insulate the supply air duct with two-inch, three-pound density insulation. Extend this lining at least 15 feet out from the equipment room wall, keeping the duct aspect ratio as small as possible. Minimize large flat panels since they

transmit sound. In addition, small aspect ratios will minimize potential“oil canning” of the duct due to flow turbulence.

The flexible horizontal discharge plenum option helps avoid complicated ductwork transitions. Ductwork turning vanes typically improve pressure drop but degrade acoustical performance.

Recommended Maximum AirVelocities The maximum recommended velocity for the discharge air duct is 2,000 fpm. The maximum recommended velocity for the return air duct is 1,000 fpm. Limit air velocities below these operating points to minimize the risk of flow turbulence that causes regenerated noise. Using round supply duct and static regain allows maximum discharge air velocities up to 3,000 fpm. Lining round supply duct also substantially lowers frequency noise attenuation. However, flow regenerated noise potential increases dramatically at air velocities over 3000 fpm.

Equipment Room Location and Orientation

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PKG-PRC002-EN

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Contents Commercial Self-Contained DecemberIntroduction Signature Series Self-Contained UnitsContents Features and Benefits Standard Features Optional FeaturesIntegrated Self-Contained Systems Integrated Comfort System ICSLow Torque Variation Proven DesignThroughTesting and ResearchTrane 3-DScroll Compressor Application Considerations Self-Contained Return Air DuctworkSupply Air Ductwork Equipment Room Location and OrientationIsolation Recommendations Condenser Water PipingUnit Operating Limits Application Air CooledConsiderations CondenserProcedure Self-Contained SelectionUnit Capacities Waterside Economizer CapacitySelection Example Design Conditions Unit SelectionProcedure Model NumberDescription Self-Contained Model Number DescriptionSelf-Contained Accessory Model Number Description Remote Air-Cooled Condenser Model Number Description General Data TonsTable GD-3. SCWF/SIWF Water-Cooled Self-Contained, 42-80Tons SCRF/SIRF Table GD-4. SCRF/SIRF Air-Cooled Self-ContainedGeneral Data CCRC/CIRCHeating Coil Table GD-7. Self-Contained Heating CoilDrops Chart PD-5. Airside Pressure Drop PerformanceData DropsAirside Pressure Heating CoilsDischarge Plenum 20 to 38 Ton Unit 42 to 80 Ton UnitAirside Pressure Airside Economizer with Standard Damper Airside Economizer with Traq Damper Pressure Drop Chart PD-21. Waterside Pressure Drop SCWF/SIWF 35Waterside SCWF/SIWF Performance Water-Cooled Data Table PD-1. CFM Capacity Correction TableWater-Cooled 20 TonTable PD-2. SCWF/SIWF 20 Economizer Full Capacity 8,000 cfm Table PD-3. SCWF/SIWF 20 Economizer Low Capacity 8,000 cfmEntering WaterTemp Entering Air 75 F 85 F 95 F Table PD-6. SCWF/SIWF 22 Economizer Low Capacity 8,800 cfm 22 TonTable PD-5. SCWF/SIWF 22 Economizer Full Capacity 8,800 cfm EnteringWaterTemp Entering Air 75 F 85 F 95 F 25 Ton Table PD-9. SCWF/SIWF 25 Economizer Low Capacity 10,000 cfmEntering Water Temp Entering Air 75 F 85 F 95 F 29 Ton Table PD-12. SCWF/SIWF 29 Economizer Low Capacity 11,600 cfm84.2 32 Ton Table PD-15. SCWF/SIWF 32 Economizer Low Capacity 12,800 cfm94.5 35 Ton Table PD-18. SCWF/SIWF 35 Economizer Low Capacity 14,000 cfm401 320 38 Ton Table PD-21. SCWF/SIWF 38 Economizer Low Capacity 15,200 cfm434 373 42 Ton Table PD-24. SCWF/SIWF 42 Economizer Low Capacity 16,800 cfm403 84.1 46 Ton Table PD-27. SCWF/SIWF 46 Economizer Low Capacity 18,400 cfm83.8 52 Ton Table PD-30. SCWF/SIWF 52 Economizer Low Capacity 20,800 cfm596 471 58 Ton Table PD-33. Scwfsiwf 58 Economizer Low Capacity 23,200 cfm663 571 65 Ton Table PD-36. SCWF/SIWF 65 Economizer Low Capacity 26,000 cfmEntering Water Temp Entering Air 72 Ton Table PD-39. SCWF/SIWF 72 Economizer Low Capacity 28,000 cfm83.7 80 Ton Table PD-42. SCWF/SIWF 80 Economizer Low Capacity 29,800 cfm891 761 Air-Cooled Table PD-45. SCRF/SIRF 25 Gross Cooling Capacity 11,600 cfm Table PD-46. SCRF/SIRF 29 Gross Cooling Capacity 12,800 cfm 30 Ton Table PD-47. SCRF/SIRF 30 Gross Cooling Capacity 14,000 cfmTable PD-48. SCRF/SIRF 35 Gross Cooling Capacity 15,200 cfm 40 Ton Table PD-49. SCRF/SIRF 40 Gross Cooling Capacity 18,400 cfm50 Ton Table PD-50. SCRF/SIRF 50 Gross Cooling Capacity 23,200 cfmTable PD-51. SCRF/SIRF 60 Gross Cooling Capacity 29,800 cfm Performance Air-CooledData60-Ton Self-Contained Heating CoilsTable PD-52. HotWater Heating Capacity Table PD-53. Steam Heating CapacityControls Available Input and Output PointsStandard IntelliPak Unit Control Features IntelliPak Unit FeaturesHuman Interface Panel HI Main menus of the human interface panels areControl Sequences Operation SequenceControls Operation Generic Building Automation System Module Gbas Option Gbas Analog InputsGbas Binary Outputs Demand Limiting Binary InputAirside Options Air-Cooled CondensersWater Purge Inlet GuideVane ControlOccupied ZoneTemperature Control Unoccupied ZoneTemperature Control Cooling and HeatingHeating Electric Heating Hot Water or SteamSupply Air Tempering Hot Water and Steam Units Only Supply Air Temperature Control Unit Sequence OperationSupply Air Setpoint Reset Zone Sensor Controls OptionsStandard On All Units Model Number Digit 6 = A, BAYSENS017Thermometer to indicate temperature in the zone Setpoint thumbwheel for local setpoint adjustment Selection Procedures Electrical DataTable ED-7. CCRC/CIRC Condenser Electrical Data Electrical Data SCWF/SCRFTable ED-6. Single Stage Electric Heat Electrical Data Dimensions Self-Contained Weights Tons Ton Self-ContainedDimensions Self-Contained Weights 40-80 Ton Detail B Discharge Dimensions Discharge Dimensions English inchesDischarge Dimensions Metric mm Detail a Electrical ConnectionsDimensions Air-Cooled Weights Condenser Ccrc Unit DimensionsDimensions WeightsRefrigerant and Electrical Connections Front View Looking at Control PanelHot Water Coil Steam CoilDimensions Plenum Dimensions English inchesPlenum Dimensions Metric mm Flexible Horizontal Discharge PlenumAirside Economizer AirsideEconomizer Airside Economizer Dimensions English inches Airside Economizer Dimensions Metric mmField-Installed AdjustmentZone Sensors Dual Setpoint, Manual/AutomaticProgrammable Night-Setback Sensor Zone Temperature Sensor OnlyFunction Lights Service Service/Code Clearance RequirementsClearances Self-Contained ModelsTop View CCRC/CIRC 50 Top View CCRC/CIRC 20Top View CCRC/CIRC 35 Dimensions Weights Table W-1. Unit Weights SCWF/SCRF/SIWF/SIRFTable W-2. Unit Weights CCRC/CIRC Table W-3. Variable Frequency Drive WeightsMechanical Specifications Self-Contained Signature Series Self Contained UnitsMechanical Air-CooledSpecifications Condenser Mechanical Specifications Options Air Volume/Temperature Control Zone Temperature ControlSupply Air Temperature Control with Inlet GuideVanes Self-Contained OptionsComparative Enthalpy Control Standard Two-Position Damper InterfaceAirside Economizer Interface Airside Economizer Interface with Comparative EnthalpyWater Flow Switch Service ValvesLow Entering Air Temperature Protection Device Non-fused Disconnect SwitchProtective Coating Cabinet CoilsCupro-Nickel Condenser Stainless Steel Drain PanLiterature Order Number

PKG-PRC002-EN specifications

The Trane PKG-PRC002-EN is a groundbreaking packaged rooftop unit designed to meet the diverse needs of commercial and industrial spaces. This model showcases Trane’s commitment to innovation, energy efficiency, and reliability, making it a preferred choice for HVAC professionals and building owners alike.

One of the main features of the PKG-PRC002-EN is its high-efficiency design. This unit leverages advanced technologies to minimize energy consumption while ensuring optimal cooling and heating performance. Its efficient compressor, coupled with enhanced heat exchangers, significantly reduces operating costs and energy bills, aligning with today’s sustainability goals.

The PKG-PRC002-EN features a robust and durable construction, which translates to enhanced longevity and reduced maintenance requirements. Designed for ease of installation, the unit is compact and lightweight, facilitating seamless retrofitting and integration into existing systems. Furthermore, its accessible service panels allow for straightforward maintenance and repairs, thus minimizing downtime and service disruptions.

Equipped with Trane's advanced control technology, the PKG-PRC002-EN offers precise temperature management, ensuring consistent comfort across different zones within a building. The intuitive controls enable users to program schedules and adjust settings based on their specific needs, enhancing comfort while maximizing efficiency.

The model also incorporates advanced filtration options, improving indoor air quality by effectively reducing pollutants and allergens. This focus on health and safety is essential, especially in commercial settings where air quality can significantly impact occupant well-being and productivity.

Another notable characteristic of the PKG-PRC002-EN is its low noise levels during operation, which is essential for maintaining a conducive indoor environment in workplaces, retail spaces, or educational institutions. The unit's design minimizes sound transmission, creating a more pleasant atmosphere for occupants.

In summary, the Trane PKG-PRC002-EN is a highly efficient, reliable, and user-friendly rooftop unit that combines advanced technology with robust construction. Its energy-saving features, superior air quality options, and focus on quiet performance make it an excellent choice for modern commercial HVAC applications, ultimately contributing to sustainable building practices and enhanced occupant comfort.
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