Trane PKG-PRC002-EN manual Controls Operation, Control Sequences Operation

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Sequence of

Controls Operation

Control Sequences of

Operation

Morning Warmup

This feature is available on all types of factory-installed heat units and on units with no heat. This function may still be selected to support systems with heat sources not provided by the self- contained unit. At the conclusion of unoccupied mode, the selected zone is heated to the user-defined morning warmup setpoint. The unit is then released to occupied mode. There are two types of morning warmup: full capacity or cycling capacity.

•Full Capacity Morning Warmup (MWU) Full capacity morning warmup uses full heating capacity to heat the zone as quickly as possible. Full heating capacity is provided until the morning warmup setpoint is met. At this point, the unit is released to daytime mode.

•Cycling Capacity Morning Warmup (MWU)

Cycling capacity morning warmup provides gradual heating to overcome “building sink” as the zone is heated. Normal zone temperature control with varying capacity is used to raise the zone temperature to the MWU zone temperature setpoint. Cycling capacity MWU will operate until MWU setpoint is reached or for 60 minutes. Then the unit switches to occupied mode. Cooling will suspend untill building load conditions exceed the MWU setpoint of 3 F (1.7 C), which is field adjustable.

Note: When using the morning warmup option in a heating/cooling self-contained unit in aVAV system, it is important to maintain airflow through the unit. This can be accomplished by electrically tying the VAV boxes to the VAV drive max output relay contacts on the unit’s RTM module board or by using changeover thermostats. Either of these methods will assure adequate airflow through the unit and satisfactory heating.

Ventilation Override (VOM) Option The user can customize up to five different override sequences for purposes of ventilation override control. If more than one VOM sequence is being requested, the sequence with the highest priority is initiated first. Priority schedule

is that sequence “A” (unit off) is first, with sequence “E” (purge with duct pressure control) last.

• UNIT OFF sequence “A”

When complete system shut down is required, the following sequence can be used.

•Supply fan – Off

•Supply fan VFD – Off (0 Hz) (if equipped)

•Inlet guide vanes – closed (if equipped)

•Outside air dampers – Closed

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Deenergized

•VO relay – Energized

•Exhaust fan (field-installed) - Off •Exhaust damper (field-installed) - Closed

• PRESSURIZE sequence “B”

This override sequence can be used if a positively pressured space is desired instead of a negatively pressurized space. •Supply fan – On

•Supply fan VFD – On (60 Hz) (if equipped)

•Inlet guide vanes/VAV boxes – Open (if equipped)

•Outside air dampers – Open

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/ Unoccupied output - Energized

•VO relay - Energized

•Exhaust fan (field-installed) - Off •Exhaust damper (field-installed) - Closed

• EXHAUST sequence “C”

With the building’s exhaust fans running and the unit’s supply fan off, the conditioned space becomes negatively pressurized. This is desirable for clearing the area of smoke when necessary; i.e. from an extinguished fire, to keep smoke out of areas that were not damaged. •Supply fan – Off

•Supply fan VFD – Off (0 Hz) (if equipped)

•Inlet guide vanes – Closed (if equipped)

•Outside air dampers – Closed

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Deenergized

•VO relay – Energized

•Exhaust fan (field-installed) - On •Exhaust damper (field-installed) - Open

• Purge sequence “D”

This sequence could be used for purging the air out of a building before coming out of unoccupied mode of operation onVAV units. Also, it can be used to purge smoke or stale air.

•Supply fan – On

•Supply fan VFD – On (60 Hz) (if equipped)

•Inlet guide vanes/VAV boxes – Open (if equipped)

•Outside air damper – Open

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Energized •VO relay – Energized

•Exhaust fan (field-installed) - On •Exhaust damper (field-installed) - Open

•Purge with duct pressure control “E” This sequence can be used when supply air control is required for smoke control.

•Supply fan – On

•Supply fan VFD – On (if equipped) •Inlet guide vanes – controlled by supply

air pressure control function with supply air pressure high limit disabled

•Outside air dampers – Open

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Energized •VO relay – Energized

•Exhaust fan (field-installed) - On •Exhaust damper (field-installed) - Open

Note: Each system (cooling, exhaust, supply air, etc.) within the unit can be redefined in the field for each of the five sequences, if required. Also the definitions of any or all of the five sequences may be locked into the software by simple key strokes at the human interface panel.

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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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