Trane PKG-PRC002-EN manual Mechanical Specifications Self-Contained

Page 95

Mechanical

Specifications Self-Contained

Signature Series Self-

Contained Units

Cabinet

The unit framework shall be formed structural steel members of 14-gauge galvanized steel. Exterior panels shall be fabricated from 18-gauge galvanized steel. The fan and compressor sections shall be insulated with ¾-inch (19 mm) of

1.75lb./cu. ft. (28 kg./cu. ft.) density fiberglass insulation.

The unit shall be provided with removable panels to allow service access to compressors, condensers, fan motor, fan bearings, coils, and valves. Removable panels shall be secured with quick-acting fasteners. The refrigerant sight glasses shall be accessible during operation. The control panel door shall have lift-off hinges.

Compressors

Units shall have multiple compressors with independent circuits for water-cooled units and manifolded circuits for air- cooled units. Compressors shall be manufactured by the unit manufacturer. Scroll compressors shall be heavy duty suction cooled type with suction screen, centrifugal oil pump with dirt separator, oil charging valve, and oil sight glass. Protective devices for low pressure, high pressure, and motor temperature shall be provided. The compressors shall be mounted on isolators for vibration isolation.

Condenser (SCWF/SIWF only)

One condenser shall be provided for each compressor.The condensers shall be shell-and-tube design with removable heads and mechanically cleanable tubes. Tubes shall be ¾-inch (19mm) OD and constructed of copper. Condenser waterside working pressure shall be 400 psig. All condenser water piping including, cleanouts, shall be factory installed to provide single connections for water inlet and outlet.

Evaporator

The evaporator coil shall be seamless copper tubes expanded into aluminum fins.Tubes shall be ½-inch (13mm) OD with internally enhanced surfaces. Coil shall have staggered tube arrangement

with intertwined circuiting and no more than 12 fins per inch.

The drain pan shall be positively sloped in all directions to ensure proper condensate removal. The drain pan shall be fabricated of galvanized steel and insulated with ¾- inch (19 mm) of 1-lb. (0.5 kg) density fiberglass. Drain piping, including a trap with cleanout, shall be provided with a single-point connection to the unit’s exterior.

Refrigerant Circuit (SCWF only) Refrigerant circuits shall be independent and completely piped including sight glasses, distributors, thermal expansion valves with adjustable superheat and external equalizer, and high pressure relief valves with ½-inch (13 mm) flare connection. Filter driers ship loose for field installation. Unit shall be provided with adequate means of frost control.The circuits shall be factory dehydrated, charged with oil and refrigerant 22. Compressors shall be mounted on rubber-in-shear isolators for vibration isolation.

Refrigerant Circuit (SCRF/SIRF only) Two refrigerant circuits shall be piped to the unit’s exterior.The refrigerant piping includes filter driers (for field installation), sight glasses, distributors, thermal expansion valves with adjustable superheat and external equalizer. Unit shall be provided with adequate means of frost control. The circuits shall be factory tested, dehydrated and then charged with dry nitrogen. Compressors shall be mounted on rubber-in-shear isolators for vibration isolation.

Supply Fan

The supply fan shall be a single forward curved medium pressure fan secured to a solid steel shaft with grease lubricated bearings designed for 200,000 hours. Both fan bearings shall have greaselines extended to a common location. The drive components shall include fixed pitch sheaves and multiple V-belt sized for 130% nominal motor horsepower.The supply fan motor shall have a service factor of 1.15. The supply fan motor shall be either:

•Standard efficiency open drip-proof

•Premium efficiency open drip-proof

•Totally enclosed fan cooled standard

efficiency.

Supply fan motor shall have a standardT- frame. All drive components shall be accessible without using scaffolds or ladders.

The entire fan assembly, including drive components, shall be mounted on a common base. The fan base shall be isolated inside the unit. The entire assembly shall be statically and dynamically balanced at the factory.

Filters

Two-inch (51 mm) throwaway fiberglass filters shall be provided for installation during construction.

Unit Controls - DDC

Microprocessor controls shall be provided to control all unit functions. The control system shall be suitable to control CV or VAV applications.The controls shall be factory-installed and mounted in the main control panel. All factory-installed controls shall be fully commissioned (run tested) at the factory.The unit shall have a human interface panel with 16-key keypad, a two line, 40 character clear language (English, French, or Spanish) display as standard to provide the operator with full adjustment and display of control data functions. The unit controls shall be used as a stand-alone controller or as part of a building management system involving multiple units.

The unit shall be equipped with a complete microprocessor control system. This system shall consist of temperature and pressure (thermistor and static pressure transducer) sensors, printed circuit boards (modules) and a unit mounted human interface panel. Modules (boards) shall be individually replaceable for service ease. All microprocessors, boards, and sensors shall be factory mounted, wired, and tested.

The microprocessor boards shall be stand-alone DDC controls not dependent on communications with an on-site PC or building management network. The microprocessors shall be equipped with on-board diagnostics, indicating that all hardware, software, and interconnecting wiring are in proper operating condition. The modules (boards) shall be protected to prevent RFI and voltage transients from affecting the board’s circuits. All field

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Contents December Commercial Self-ContainedSignature Series Self-Contained Units IntroductionContents Features and Benefits Optional Features Standard FeaturesIntegrated Comfort System ICS Integrated Self-Contained SystemsLow Torque Variation Proven DesignThroughTesting and ResearchTrane 3-DScroll Compressor Equipment Room Location and Orientation Application Considerations Self-ContainedReturn Air Ductwork Supply Air DuctworkCondenser Water Piping Isolation RecommendationsUnit Operating Limits Condenser ApplicationAir Cooled ConsiderationsWaterside Economizer Capacity Procedure Self-ContainedSelection Unit CapacitiesUnit Selection Selection Example Design ConditionsSelf-Contained Model Number Description ProcedureModel Number DescriptionSelf-Contained Accessory Model Number Description Remote Air-Cooled Condenser Model Number Description Tons General DataTable GD-3. SCWF/SIWF Water-Cooled Self-Contained, 42-80Tons Table GD-4. SCRF/SIRF Air-Cooled Self-Contained SCRF/SIRFCCRC/CIRC General DataTable GD-7. Self-Contained Heating Coil Heating CoilDrops Drops Chart PD-5. Airside Pressure DropPerformance DataHeating Coils Airside Pressure20 to 38 Ton Unit 42 to 80 Ton Unit Discharge PlenumAirside Pressure Airside Economizer with Standard Damper Airside Economizer with Traq Damper Pressure Drop Chart PD-21. Waterside Pressure Drop SCWF/SIWF 35Waterside SCWF/SIWF Table PD-1. CFM Capacity Correction Table Performance Water-Cooled DataTable PD-3. SCWF/SIWF 20 Economizer Low Capacity 8,000 cfm Water-Cooled20 Ton Table PD-2. SCWF/SIWF 20 Economizer Full 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 Table PD-9. SCWF/SIWF 25 Economizer Low Capacity 10,000 cfm 25 TonEntering Water Temp Entering Air 75 F 85 F 95 F Table PD-12. SCWF/SIWF 29 Economizer Low Capacity 11,600 cfm 29 Ton84.2 Table PD-15. SCWF/SIWF 32 Economizer Low Capacity 12,800 cfm 32 Ton94.5 Table PD-18. SCWF/SIWF 35 Economizer Low Capacity 14,000 cfm 35 Ton401 320 Table PD-21. SCWF/SIWF 38 Economizer Low Capacity 15,200 cfm 38 Ton434 373 Table PD-24. SCWF/SIWF 42 Economizer Low Capacity 16,800 cfm 42 Ton403 84.1 Table PD-27. SCWF/SIWF 46 Economizer Low Capacity 18,400 cfm 46 Ton83.8 Table PD-30. SCWF/SIWF 52 Economizer Low Capacity 20,800 cfm 52 Ton596 471 Table PD-33. Scwfsiwf 58 Economizer Low Capacity 23,200 cfm 58 Ton663 571 Table PD-36. SCWF/SIWF 65 Economizer Low Capacity 26,000 cfm 65 TonEntering Water Temp Entering Air Table PD-39. SCWF/SIWF 72 Economizer Low Capacity 28,000 cfm 72 Ton83.7 Table PD-42. SCWF/SIWF 80 Economizer Low Capacity 29,800 cfm 80 Ton891 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 Table PD-47. SCRF/SIRF 30 Gross Cooling Capacity 14,000 cfm 30 TonTable PD-48. SCRF/SIRF 35 Gross Cooling Capacity 15,200 cfm Table PD-49. SCRF/SIRF 40 Gross Cooling Capacity 18,400 cfm 40 TonTable PD-50. SCRF/SIRF 50 Gross Cooling Capacity 23,200 cfm 50 TonTable PD-51. SCRF/SIRF 60 Gross Cooling Capacity 29,800 cfm Performance Air-CooledData60-Ton Table PD-53. Steam Heating Capacity Self-ContainedHeating Coils Table PD-52. HotWater Heating CapacityAvailable Input and Output Points ControlsMain menus of the human interface panels are Standard IntelliPak Unit Control FeaturesIntelliPak Unit Features Human Interface Panel HIControl Sequences Operation SequenceControls Operation Demand Limiting Binary Input Generic Building Automation System Module Gbas OptionGbas Analog Inputs Gbas Binary OutputsInlet GuideVane Control Airside OptionsAir-Cooled Condensers Water PurgeHeating Hot Water or Steam Occupied ZoneTemperature ControlUnoccupied ZoneTemperature Control Cooling and Heating Heating ElectricSupply Air Tempering Hot Water and Steam Units Only Supply Air Temperature Control Unit Sequence OperationSupply Air Setpoint Reset Model Number Digit 6 = A, BAYSENS017 Zone SensorControls Options Standard On All UnitsThermometer to indicate temperature in the zone Setpoint thumbwheel for local setpoint adjustment Electrical Data Selection ProceduresTable ED-7. CCRC/CIRC Condenser Electrical Data Electrical Data SCWF/SCRFTable ED-6. Single Stage Electric Heat Electrical Data Ton Self-Contained Dimensions Self-Contained Weights TonsDimensions Self-Contained Weights 40-80 Ton Detail a Electrical Connections Detail B Discharge DimensionsDischarge Dimensions English inches Discharge Dimensions Metric mmCcrc Unit Dimensions Dimensions Air-Cooled Weights CondenserFront View Looking at Control Panel DimensionsWeights Refrigerant and Electrical ConnectionsSteam Coil Hot Water CoilFlexible Horizontal Discharge Plenum DimensionsPlenum Dimensions English inches Plenum Dimensions Metric mmAirside Economizer AirsideEconomizer Airside Economizer Dimensions Metric mm Airside Economizer Dimensions English inchesDual Setpoint, Manual/Automatic Field-InstalledAdjustment Zone SensorsProgrammable Night-Setback Sensor Zone Temperature Sensor OnlyFunction Lights Self-Contained Models ServiceService/Code Clearance Requirements ClearancesTop View CCRC/CIRC 50 Top View CCRC/CIRC 20Top View CCRC/CIRC 35 Table W-3. Variable Frequency Drive Weights Dimensions WeightsTable W-1. Unit Weights SCWF/SCRF/SIWF/SIRF Table W-2. Unit Weights CCRC/CIRCSignature Series Self Contained Units Mechanical Specifications Self-ContainedMechanical Air-CooledSpecifications Condenser Self-Contained Options Mechanical Specifications OptionsAir Volume/Temperature Control Zone Temperature Control Supply Air Temperature Control with Inlet GuideVanesAirside Economizer Interface with Comparative Enthalpy Comparative Enthalpy ControlStandard Two-Position Damper Interface Airside Economizer InterfaceNon-fused Disconnect Switch Water Flow SwitchService Valves Low Entering Air Temperature Protection DeviceStainless Steel Drain Pan Protective Coating CabinetCoils Cupro-Nickel CondenserLiterature 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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