Trane TWA075A, TWE200B, TWA200B, TWE050A manual Mechanical Specifications

Page 52

Mechanical Specifications

Heat Pumps

General

Unit shall be assembled on heavy gauge steel mounting/lifting rails and shall be weather proofed. Unit shall include a hermetic scroll or reciprocating compressor(s), plate fin condenser coil, fans and motors, controls, and holding charge of nitrogen. Operating Range shall be between 115° F (46°C) and 50°F (10°C) in cooling as standard from factory. Unit shall be UL 1995 listed and rated in accordance with ARI Standard 340/360.

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 500 hours in salt spray test. Unit shall have removable end panels which allow access to all major components and controls.

Refrigeration System — Single Compressor

TWA075A,TWA100A units shall have a single refrigeration circuit. Each refrigeration circuit has an integral subcooling circuit. A refrigeration filter drier, expansion valve, and check valves shall be provided as standard.The unit shall have both a liquid line and suction gas line service valve with gauge port.

Unit shall have one direct drive,Trane hermetic scroll compressor with 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 nameplate voltage. Crankcase heater, discharge line thermostat, and current-sensitive motor overloads shall be included for maximum protection. Scroll type compressor shall provide inherently low vibration and noise by having no suction and discharge valves. External high and low pressure cutout devices shall be provided. Evaporator defrost control provided in indoor blower coil unit shall prevent compressor slugging by temporarily interrupting compressor operation when low evaporator coil temperatures are encountered.

Refrigeration System — Dual

Compressor

TWA155B,TWA200B units shall have two separate and independent refrigeration circuits. Each refrigeration circuit shall have an integral subcooling circuit. A refrigeration filter drier shall be provided as standard. Unit shall have both a liquid line and suction gas line service valve with gauge ports.

Unit shall have twoTrane direct drive, hermetic scroll compressors with centrifugal oil pump and provide positive lubrication to all moving parts. Motor shall be suction gas-cooled and shall have a voltage utilization range of plus or minus 10 percent of nameplate voltage. Crankcase heater, and current-sensitive motor overloads shall be included for maximum protection. Scroll type compressor shall provide inherently low vibration and noise by having no suction and discharge valves. External high and low pressure cutout devices shall be provided. Evaporator defrost control provided in indoor blower coil shall prevent compressor slugging by temporarily interrupting compressor operation when low evaporator coil temperatures are encountered.

Condenser Coil

Coils shall be internally finned or smooth bore, 3/8" (10mm) copper tubes mechanically bonded to a configured aluminum plate fin as standard. Coil shall be factory pressure and leak tested to 420 psig (2,930 kPa) air pressure. Metal grilles with PVC coating for coil protection is optional.

Condenser Fan And Motor(s) Direct-drive, statically and dynamically balanced, 26 or 28 inch (660 or 711 mm) propeller fan(s) with aluminum blades and electro-coated steel hubs shall be used in draw-through vertical discharge position. Either permanently lubricated totally enclosed or open construction type motors shall be provided and shall have built-in current and thermal overload protection. Motor(s) shall have either ball or sleeve bearing type.

Controls

Heat pump units shall be completely factory wired with necessary controls and contactor pressure lugs or terminal block for power wiring. Control wiring

shall be 24-volt control circuit which includes fusing and control transformer. Units shall provide external location for mounting a fused disconnect device. Time delay timers to prevent compressors in dual compressor units from simultaneous start-up and anti- recycle timers are available as optional accessories.

Defrost Controls

Electronic timed initiated, temperature terminated defrost system with choice of 50, 70, or 90 minute cycle shall be included.Timed override limits defrost cycle to 10 minutes.

Low Ambient Operation

Standard units shall start and operate to approximately 50°F (10°C) when matched withTrane air handlers and coils. Optional head pressure control accessory permits operation to 0°F (-17.8°C).

ACCESSORIES

Low Ambient Head Pressure Control — This accessory shall modulate the RPM of unit outdoor fan motor in response to outdoor ambient temperatures and liquid line temperature. Accessory provides unit cooling operation to outdoor temperatures of 0°F (-17.8°C).

Vibration Isolation Packages —This accessory shall reduce transmission of noise and vibration to building structures, equipment, and adjacent spaces. Packages shall be available in either neoprene-in-shear or spring-flex types.

Time Delay Relay —This accessory shall prevent compressors in dual compressor unit from coming on line simultaneously.Timer shall be 24-volt, 60 cycle, with four minute timing period.

Anti-Short-CycleTimer —This accessory shall prevent rapid on-off compressor cycling in light load conditions by not allowing compressor to operate for 5-7 minutes upon shutdown.This accessory shall consist of a 24-volt, 60 cycle, solid state timing device with either 5 or 7 minute fixed- off timing period.

52

SSP-PRC002-EN

Page 51 Page 53
Image 52
Page 51 Page 53
Contents Split System Heat Pumps Manufacturing Control Designing the DetailsStandardized Cabinets FiltersContents Features and Benefits Low Ambient Cooling OperationOdyssey a Complete Split System Clearance Requirements Application ConsiderationsBlower Rotation Selection Procedure Cooling CapacityHeating Capacity Air Delivery SelectionSplit System Heat Pump Model Nomenclature Model Number DescriptionAir Handler Model Nomenclature Heat Pumps General DataTable GD-1 General Data Heat Pumps Condensing Unit Power kW Table GD-2 General Data Heat PumpsCondensing Unit Only 2, Btu kW Number Type 3D Scroll No. Motors Motor HP Motor RPM, kWTable GD-3 General Data Air Handlers Air HandlersTable GD-3 General Data Performance DataSystem125.2 99.3109.5 120.5105 115 Dry EnteringWet Bulb F4500 119.6 99.3115 105 Enter Dry 161.9216.2 223.9DataTWA075A DataTWA100A ODTemp Suction ReferenceTemperature CTWA100A Heat Pump Only SI DataTWA155B TWA155B Heat Pump Only SIDataTWA200B TWA200B Heat Pump Only SIOutdoor Heating Capacity Btu/1000 At OutdoorTemperature Indicated Indoor Dry BulbTemperature Outdoor Heating Capacity BTUH/1000 At15.6 20.1DataSystem Performance Data Air HandlerTable PD-13 Evaporator Fan Performance TWE050A I-P Table PD-13- Evaporator Fan Performance TWE050A SITable PD-15 Evaporator Fan Performance TWE075A I-P Table PD-15Table PD-15 Evaporator Fan Performance TWE075A SI Table PD-16 Blower Speeds TWE075ATable PD-17 Table PD-17 Evaporator Fan Performance TWE100A, TWE100B I-PTable PD 18 Blower Speeds TWE100A,TWE100B Table PD-19 Evaporator Fan Performance TWE155B I-P Table PD-19 Evaporator Fan Performance TWE155B SITable PD-20- Blower Speeds TWE155B KW RPMTable PD-21- Evaporator Fan Performance TWE200B I-P Table PD-21Table PD-21- Evaporator Fan Performance TWE200B SI Table PD-22 Blower Speeds TWE200BUnit Louver Angle Deflection Position Model No Straight 1400TWE050 1800 2200Table PD-25 Auxiliary Electric Heat Capacity Air Handler Table ED-1- Electrical Characteristics Motors Air Handler Table ED-2 UnitWiring Air HandlerTable ED-4 UnitWiring Heat Pumps Electrical Data17.31 Heater34.62 Jobsite Connections TWA050/TWE050TWA075A/TWE075A 2TWA075A/TWE155BTypical Wiring Heat Pump Single CompressorHeat Pump Heat Pump Dual Compressors Typical Air Handler Air HandlerDimensional Figure DD-1 TWA075 Heat PumpDimensional Data Figure DD-2 10TonTWA100A Heat PumpFigure DD-3 TWA155B Heat Pump Figure DD-4 TWA200B Heat Pump Figure DD-5 TWE050AAir Handlers Figure DD-6 -TWE075A Air Handler Figure DD-7-TWE100A Air Handler Figure DD-8-TWE100B Air Handler 905 Table DD-1 Air Handler Dimensions in. mm878 Figure DD-10- TWE155B Air Handler Figure DD-11 -TWE200B Air Handler Table DD-2 Air Handler Dimensions in. mm Table DD-2- Air Handler Dimensions in. mmDataAccessories Mechanical Specifications Evaporator Coil Evaporator FanPage Page Trane Literature Order Number

TWA200B, TWA075A, TWE200B, TWE050A specifications

Trane has a long-standing reputation for manufacturing high-efficiency heating, ventilation, and air conditioning (HVAC) systems. Among their impressive lineup are the Trane TWA200B, TWE050A, TWA075A, and TWE200B models, each designed with advanced technologies that cater to various residential and commercial needs.

The Trane TWA200B is a powerful 2-ton air handler equipped with a variable-speed blower that enhances energy efficiency and provides consistent airflow. With a compact design, it fits well in tight spaces while delivering superior indoor comfort. One of its notable features is its compatibility with Trane's ComfortLink II Zoning System, allowing for customized temperature control in different zones of a building. This model is optimized for use with high-efficiency heat pumps and has enhanced filtration options that improve indoor air quality by trapping dust, pollen, and other allergens.

The TWE050A is a 5-ton packaged air conditioning unit that integrates both cooling and heating capabilities. This model is particularly praised for its high SEER (Seasonal Energy Efficiency Ratio) rating, which indicates superior energy efficiency and reduced operational costs. The TWE050A utilizes Trane's proprietary Spine Fin coil technology, which maximizes surface area for better heat exchange and overall efficiency. Its durable construction ensures long-lasting performance in various weather conditions, making it ideal for both residential and light commercial applications.

The TWA075A is a versatile 7.5-ton air handler designed for larger spaces. It features a robust construction and is equipped with a multi-speed blower that can be adjusted to meet specific airflow requirements, ensuring optimal comfort. This model is notable for its sound attenuation features, which minimize operational noise, making it suitable for quiet environments. Additionally, the TWA075A supports advanced thermostat compatibility, enabling users to maintain precise control over indoor temperatures.

Finally, the TWE200B stands out as a 20-ton packaged rooftop unit, making it an excellent choice for extensive commercial applications. Its advanced compressor technology ensures effective cooling and heating while maintaining high energy efficiency. The TWE200B includes enhanced connectivity options, allowing for remote monitoring and control through smart devices. This model also incorporates Trane's Integrated Comfort System, which streamlines operation and simplifies maintenance tasks.

Overall, the Trane TWA200B, TWE050A, TWA075A, and TWE200B models embody the company's commitment to quality, innovation, and energy efficiency, making them excellent choices for a wide array of HVAC applications.
Top Page Image Contents