Trane PKGP-PRC003-EN manual Mechanical Specifications

Page 53

Mechanical Specifications

General

The units shall be convertible airflow.The operating range shall be between 115°F and 0°F in cooling as standard from the factory for units with microprocessor controls. Operating range for units with electromechanical controls shall be between 115°F and 40°F. Cooling performance shall be rated in accordance with ARI testing procedures. All units shall be factory assembled, internally wired, fully charged with R-22, and 100 percent run tested to check cooling operation, fan and blower rotation, and control sequence before leaving the factory. Wiring internal to the unit shall be colored and numbered for simplified identification. Units shall be UL listed and labeled, classified in accordance to UL 1995/CAN/CSA No. 236-M90 for Central Cooling Air Conditioners. Canadian units shall be CSA Certified.

Casing

Unit casing shall be constructed of zinc coated, heavy gauge, galvanized steel. Exterior surfaces shall be cleaned, phosphatized, and finished with a weather-resistant baked enamel finish. Unit’s surface shall be tested 1000 hours in a salt spray test in compliance with ASTM B117. Cabinet construction shall allow for all maintenance on one side of the unit. Service panels shall have lifting handles and be removed and reinstalled by removing only a single fastener while providing a water and air tight seal. All exposed vertical panels and top covers in the indoor air section shall be insulated with a cleanable foil-faced, fire-retardent permanent, odorless glass fiber material. The base of the unit shall be insulated with 1/2 inch, 1 pound density foil-faced, closed-cell material. All insulation edges shall be either captured or sealed.The unit’s base pan shall have no penetrations within the perimeter of the curb other than the raised 11/8 inch high downflow supply/return openings to provide an added water integrity precaution, if the condensate drain backs up.The base of the unit shall have provisions for forklift and crane lifting, with forklift capabilities on three sides of the unit.

UnitTop

The top cover shall be one piece construction or where seams exist, it shall be double-hemmed and gasket- sealed. The ribbed top adds extra strength and prevents water from pooling on unit top.

Filters

One inch, throwaway filters shall be standard on all 3-5 ton units.The filter rack can be converted to two inch capability. Two inch filters shall be factory supplied on all 6-10 ton units. Optional 2-inch pleated filters shall be available.

Compressors

All 3 ton standard units shall have direct- drive, hermetic, reciprocating type compressors.The reciprocating type compressors have a centrifugal oil pump providing positive lubrication to moving parts. Motor shall be suction gas-cooled and shall have a voltage utilization range of plus or minus 10 percent of unit nameplate voltage. Crankcase heater, internal temperature, and current- sensitive motor overloads shall be included for maximum protection. Compressors shall have internal spring isolation and sound muffling to minimize vibration transmission and noise. Low pressure switches shall be standard.

3 ton high efficiency and 4-10 ton standard and high efficiency units shall have direct-drive, hermetic, scroll type compressors with centrifugal type oil pumps. Motor shall be suction gas-cooled and shall have a voltage utilization range of plus or minus 10 percent of unit nameplate voltage. Internal overloads shall be provided with the scroll compressors. Crankcase heaters shall be included on 7½ ton standard efficiency units.

Refrigerant Circuits

Each refrigerant circuit offers a choice of independent fixed orifice expansion devices or thermal expansion valve. Service pressure ports, and refrigerant line filter driers are factory-installed as standard. An area shall be provided for replacement suction line driers.

Evaporator and Condenser Coils Internally finned, 5/16” copper tubes mechanically bonded to a configured aluminum plate fin shall be standard. Coils shall be leak tested at the factory to ensure the pressure integrity.The evaporator coil and condenser coil shall be leak tested to 200 psig and pressure tested to 450 psig.The condenser coil shall have a patent pending 1+1+1 hybrid coil designed with slight gaps for ease of cleaning. A removeable, reversible, double-sloped condensate drain pan with provision for through the base condensate drain is standard.

Outdoor Fans

The outdoor fan shall be direct-drive, statically and dynamically balanced, draw-through in the vertical discharge position.The fan motor shall be permanently lubricated and shall have built-in thermal overload protection.

Indoor Fan

All 3-5 ton 3-phase units offer a choice of direct-drive, FC, centrifugal fans or belt driven, FC centrifugal fans with adjustable motor sheaves. 3-5 ton direct drive oversized motors shall be available for high static operations. All 6-10 ton units shall have belt drive motors with an adjustable idler-arm assembly for quick- adjustment to fan belts and motor sheaves. All motors shall be thermally protected. All indoor fan motors meet the U.S. Energy Policy Act of 1992 (EPACT).

Controls

Unit shall be completely factory-wired with necessary controls and contactor pressure lugs or terminal block for power wiring. Unit shall provide an external location for mounting a fused disconnect device. Microprocessor controls provide for all 24 volt control functions.The resident control algorithms shall make all heating, cooling, and/or ventilating decisions in response to electronic signals from sensors measuring indoor and outdoor temperatures.The control algorithm maintains accurate temperature control, minimizes drift from set point, and provides better building comfort. A centralized Microprocessor shall provide anti-short cycle timing and time delay between compressors to provide a higher level of machine protection.

PKGP-PRC003-EN

53

Page 52 Page 54
Image 53
Page 52 Page 54
Contents Packaged Heat Pumps American Standard Inc. All Rights Reserved IntroductionContents Factory or Field Installed Options Features BenefitsFactory Installed Options Field Installed Options Quality and Reliability Features and BenefitsEasy to Install, Service and Maintain ColoredAnd NumberedWiring Clogged Filter/Fan Failure SwitchBlack Epoxy Pre-Coated Coils Cabinet IntegrityPower Exhaust Option Phase MonitorQuick-Access Panels Quick-Adjust Idler ArmVentilation Override Accessory Rigorous TestingUnit Cabinet VariTracEasy to Install Added Efficiency Condensate Trap Barometric ReliefClearance Requirements Unit PitchHeating Capacity Cooling CapacityAir Delivery Selection Step036 11 12,13 Model Number DescriptionTable GD-1 General Data GeneralData Table GD-2 General Data General DataOutdoorSoundRatingdB3 Outdoor Coil -Type Outdoor Fan TypeTable GD-3 General Data ½, 10TonEER2 Outdoor Fan- TypeMBH SHC MBH SHC MBH SHC Performance DataMBH SHC Performance Ton Three Phase WSC060A1,A3, A4, AWMBH SHC MBH SHC MBH SHC MBH SHC MBH ½ Ton Three PhaseTon Three Phase Horizontal WSC036AWSC048A WSC060ATable PD-9 Data3TonTable PD-8 Table PD-10 Data4TonTable PD-11 HP Standard Motor & Field SuppliedTable PD-12 Data5TonTable PD-13 HP Standard Motor & Drive Low Static DriveTable PD-15 Data6TonTable PD-14 Table PD-16 Data7½TonTable PD-17 HP Oversized Motor& Field Supplied Sheave2Table PD-18 Data10 TonTable PD-19 HP Standard Motor & Drive HP Oversized Motor & DriveTable PD-22 Oversized Motor & Drive Sheave/Fan Speed Rpm Table PD-20- Standard Motor & Sheave/Fan Speed RpmWSC072A WSC090AWSC072A WSC090A WSC120A Table PD-25 Outdoor Sound Power Level dB ref -12WattsAt 1200 CFM Heating Capacities Net WSC036A1 At 1200 CFMAt 1600 CFM Heating Capacities Net WSC048A1 At 1600 CFMAt 2000 CFM Heating Capacities Net WSC60A1 At 2000 CFMWSC72A At 3000 CFM Downflow Configuration WSC120A Nominal Distribution Table PD-38 Auxiliary Electric Heat Capacity14.2 18.00 28.5 19.0 27.00 42.7 21.3 36.00 56.9 37.9 54.00 6Ton ½ Ton 10Ton 2000 3000 CFMWS120A3,A4,AW ReliaTel Controlled Units ControlsElectrical Data Table ED-1 Unit Wiring208/230 Volts Three Phase 208/230 Volts Single PhaseVolts Three Phase BAYHTR306A FLA LRA HP2 RPM RLA LRA Table ED-8 Electrical Characteristics Power ExhaustAMPS1 Amps Jobsite Connections Zone Sensors -Typical Number Of WiresData Tons DimensionalData Dimensional7½ Tons WSC072A and WSC090A Tons -WSC120A Dimensional DataTons Unit Clearance and Roof Opening SupplyTons Downflow Duct Connections Field Fabricated Tons Roof CurbSee Page 46 forThrough the Base Utilities Information Data AccessoriesTons Economizer, Manual, or Motorized Fresh Air DamperSee Page 48 forThrough the Base Utilities Information Table W-2 Factory-installed Options Net Weights Lbs1,2 WeightsMechanical Specifications Factory or Field Installed Options Factory Installed OptionsField Installed Options PL-UN-PKGP-WSC 3-10TONS-PRC003-EN-02-04 PL-UN-PKGP-WSC 3-10TONS-PRC003-EN-09-04

PKGP-PRC003-EN specifications

The Trane PKGP-PRC003-EN is a high-performance packaged rooftop unit designed to provide efficient heating, cooling, and ventilation solutions for a wide variety of commercial applications. Its innovative design encompasses advanced technologies aimed at improving energy efficiency and overall operational efficiency.

One of the standout features of the PKGP-PRC003-EN is its highly efficient variable speed compressor. This technology allows the unit to modulate its capacity based on the specific needs of the environment, ensuring optimal comfort levels while reducing energy consumption. Coupled with a robust fan system, the unit can maintain precise temperature control in fluctuating weather conditions, providing reliable comfort year-round.

The unit's advanced controls use a user-friendly interface that simplifies operation and monitoring. These controls can be integrated with building management systems (BMS), allowing for seamless connectivity and enhanced control over the HVAC system. With the capability for remote monitoring, facility managers can track performance metrics and receive alerts for maintenance, ensuring that the unit operates efficiently and minimizes downtime.

In terms of design, the PKGP-PRC003-EN is equipped with durable construction materials that withstand outdoor environments, ensuring a long lifespan with minimal maintenance. The unit’s compact footprint allows it to fit in tight spaces on rooftops, making it an ideal choice for urban environments where space is limited.

Furthermore, the Trane PKGP-PRC003-EN incorporates advanced filtration systems to improve indoor air quality. These filters effectively capture dust, pollen, and other allergens, contributing to a healthier indoor environment. The unit is also designed with sound attenuation features, minimizing operational noise, which is particularly beneficial for installations in noise-sensitive areas.

Overall, the Trane PKGP-PRC003-EN sets a high standard in the realm of rooftop HVAC solutions. Its combination of energy efficiency, smart control capabilities, and robust construction makes it a reliable choice for businesses looking to enhance their indoor climate while being mindful of operational costs. The integration of advanced technologies ensures that it not only meets but exceeds the expectations of modern HVAC performance, all while maintaining user-friendly operation and maintenance.
Top Page Image Contents