TRANE HVAC COMMERCAIL ROOFTOP UNITS NEW INSTALLATIONS

Posted on May 15, 2018

Packaged Gas/Electric

Rooftop Units YSC

Precedent™

3 - 10 Tons — 60 Hz

Packaged Rooftop Air Conditioners

Through the years, Trane has designed and developed the most complete line of Packaged Rooftop products available in the market today. Trane was the first to introduce the Micro—microelectronic unit controls—and has continued to improve and revolutionalize this design concept.

Electromechanical controls are available for simpler applications, and for the more sophisticated, ReliaTel™ microprocessor controls.

The ReliaTel control platform offers the same great features and functionality as the original Micro, with additional benefits for greater application flexibility.

With its sleek compact cabinet, rounded corners and beveled top Precedent continues to provide the highest standards in quality and reliability, comfort, ease of service, and the performance of Trane light commercial products.

Trane customers demand products that provide exceptional reliability, meet stringent performance requirements, and are competitively priced. Trane delivers with Precedent.

Precedent features cutting edge technologies: reliable compressors, Trane engineered ReliaTel controls, computer-aided run testing, and Integrated Comfort™ Systems. So, whether you’re the contractor, the engineer, or the owner you can be certain Precedent Products are built to meet your needs.

It’s Hard To Stop A Trane

Factory Installed Options

• Black Epoxy Pre-Coated Coils

• Dehumidification Option

• High Pressure Cutout

• Hinged Access Doors

• Novar Return Air Sensor

• Novar Unit Controls

• Phase Monitor

• Powered or Unpowered Convenience

Outlet

• Supply and/or Return Air Smoke Detector

• Thermal Expansion Valve

• Through the Base Electrical Access

• Through the Base Electrical With Circuit

Breaker

• Through the Base Electrical With

Disconnect Switch

• Two-Inch Pleated Filters

Factory or Field Installed Options

• Clogged Filter/Fan Failure Switch

• Differential Pressure Switches

• Discharge Air Sensing Kit

• Economizer

• Electric Heaters

• Frostat

• LonTalk® Communications Interface

• Oversized Motors

• Reference or Comparative Enthalpy

• Tool-less Hail Guards

• Trane Communications Interface (TCI)

Field Installed Options

• CO2

Sensing

• Digital Display Zone Sensor

• Dual Thermistor Remote Zone Sensor

• High Static Drive

• Humidity Sensor

• Manual Outside Air Damper

• Motorized Outside Air Dampers

• Powered Exhaust

• Remote Potentiometer

• Roof Curb

• Thermostat

• Ventilation Override Accessory

• Zone Sensor

Easy to Install, Service and Maintain

Because today’s owners are very costconscious when it comes to service and maintenance, the Trane Precedent was designed with direct input from service contractors. This valuable information helped to design a product that would get the serviceman off the job quicker and save the owner money. Precedent does this by offering:

Quality and Reliability

ReliaTel™ Controls (LCI-R) ReliaTel controls provide unit control for heating, cooling and ventilating utilizing input from sensors that measure outdoor and indoor temperature. Quality and Reliability are enhanced through ReliaTel control and logic:

—prevents the unit from short cycling, considerably improving compressor life.

—ensures that the compressor will run for a specific amount of time which allows oil to return for better lubrication, enhancing the reliability of the compressor.Precedent with ReliaTel reduces the number of components required to operate the unit, thereby reducing possibilities for component failure.

ReliaTel Makes Installing and Servicing Easy

ReliaTel eliminates the need for field installed anti-shortcycle timer and time delay relays. ReliaTel controls provide these functions as an integral part of the unit. The contractor no longer has to purchase these controls as options and pay to install them. The wiring of the low voltage connections to the unit and the zone sensors is as easy as 1-1, 2-2, and 3-3. This simplified system makes wiring easier for the installer.

ReliaTel Makes Testing Easy

ReliaTel requires no special tools to run the Precedent unit through its paces. Simply place a jumper between Test 1 and Test 2 terminals on the Low Voltage Terminal Board and the unit will walk through its operational steps automatically.

— The unit automatically returns control to the zone sensor after stepping through the test mode a single time, even if the jumper is left on the unit

As long as the unit has power and th “system on” LED is lit, ReliaTel is operational. The light indicates that the controls are functioning properly.

ReliaTel features expanded diagnostic capabilities when utilized with Trane Integrated Comfort™ Systems .Some zone sensor options have central control panel lights which indicate the mode the unit is in and possible diagnostic information (dirty filters for example).

Other ReliaTel Benefits

The ReliaTel built-in anti-shortcycle timer, time delay relay and minimum “on” time control functions are factory tested to assure proper operation.

ReliaTel softens electrical “spikes” by staging on fans, compressors and heaters.

Intelligent Fallback is a benefit to the building occupant. If a component goes astray, the unit will continue to operate at predetermined temperature setpoint.

Intelligent Anticipation is a standard ReliaTel feature. It functions continuously as ReliaTel and zone sensor(s) work together in harmony to provide much tighter comfort control than conventional electro-mechanical thermostats.

The same ReliaTel Board fits all Precedent Packaged Gas/Electrics, Cooling with Electric Heat, and Heat Pump models. This provides standardization of parts for contractors. Less money is tied up in inventory with ReliaTel.

Electromechanical Controls

For the simpler job that does not require a building automation system, or expanded diagnostics capabilities, Precedent offers electromechnical controls. This 24-volt control includes the control transformer and contactor pressure lugs for power wiring.

Outstanding Standard and Optional Components

Black Epoxy Pre-Coated Coils The pre-coated coils are an economical option for protection in mildly corrosive environments.

Cabinet Integrity

For added water integrity, Precedent has a raised 11 / 8, " lip around the supply and return of the downflow units to prevent water from blowing into the ductwork.

Clogged Filter/Fan Failure Switch

A dedicated differential pressure switch is available to achieve active fan failure indication and/or clogged filter indication. These sensors allow a zone sensor service light or Integrated Comfort System to indicate a dirty filter or a fan that’s not working. The field installation charges for these valuable feedback devices often eliminate them from consideration. Factory installation can make such features a good investment.

CO2 Sensing

The CO2 sensor has the ability to monitor space occupancy levels within the building by measuring the parts per million of CO2 (Carbon Dioxide) in the air. As the CO2 levels increase, the outside air damper modulates to meet the CO2 space ventilation requirements. The CO2 sensor kit is available as a field installed accessory.

Colored And Numbered Wiring Save time and money tracing wires and diagnosing the unit.

Compressors

Precedent contains the best compressor technology available to achieve the highest possible performance. Our compressor line includes Trane built ClimaTuff® reciprocating and scrolls.

Condenser Coil

Precedent boasts a patent-pending 1+1+1 condenser coil, permanently gapped for easy cleaning.

Dehumidification (Hot Gas Reheat) Option

This option allows for increased outdoor air ventilation. It reduces humidity levels while increasing comfort level in the air space. Cooling can operate without a demand for dehumidification. The hot gas reheat coil is designed to deliver maximum reheat temperatures and pivot to allow for easy access cleaning.

Digital Display Zone Sensor

The Digital LCD (Liquid Crystal Display) zone sensor has the look and functionality of standard zone sensors. This sensor should be utilized with ReliaTel™ controls.

Discharge Air Sensing Kit

Provides true discharge air sensing in heating models. The kit is functional only with the ReliaTel Options Module.

Downflow And Horizontal Economizers The economizers come with three control options — dry bulb is standard, enthalpy and differential enthalpy are optional.

Dual Thermistor Remote Zone Sensor This sensor will reduce the total number of remote sensors to obtain space temperature averaging. This sensor should be utilized with ReliaTel controls.

Foil-Faced Insulation

All panels in the evaporator section of the unit have cleanable foil-faced insulation. All edges are either captured or sealed to ensure no fibers get into the airstream.

Factory Built Roof Curbs Available for downflow units. Only two roof curbs for the entire Precedent line simplifies curb selection.

Flexibility

Units are built to order in our standard “shortest in the industry” ship cycle time.

Fresh Air

0 - 25% manual or 0 - 50% motorized outside air hoods are available.

High Pressure Cutout

This factory-installed option is offered for units that do not have High Pressure Cutout as standard. All 3-phase units with scroll compressors include High Pressure cutout as standard.

High Static Drive Accessory

Available on many models, this high static drive accessory extends the capability of the standard motor. Avoid expensive motors and operating costs by installing this optimized sheave accessory.

Hinged Access Doors

These doors permit easy access to the filter, fan/heat, and compressor/ control sections. They reduce the potential roof damage from screws or sharp access door corners.

LonTalk® Communications Interface

The LonTalk communications interface allows the unit to communicate as a Tracer™LCI-V device or directly with generic LonTalk Network Building Automation System Controls.

Phase Monitor

Phase monitor shall provide 100% protection for motors and compressors against problems caused by phase loss, phase imbalance, and phase reversal. Phase monitor is equipped with an LED that provides an ON or FAULT indicator.

Power Exhaust Option This option is available on downflow units and provides exhaust of the return air, when using a downflow economizer, to maintain proper building pressurization. Great for relieving most building overpressurization problems.

Progressive Tubular Heat ExchangerThe compact cabinet features a tubular heat exchanger in low, medium and high heat capacities. The heat exchanger is fabricated using stainless steel burners and corrosionresistant aluminized steel tubes as standard on all models. It has an induced draft blower to pull the gas mixture through the burner tubes. The heater has a direct spark ignition system which doubles as a safety device to prove the flame. Gas electric Precedent models exceed all California seasonal efficiency requirements. They also perform better than required to meet the California NOx emission requirements.

Quick-Access Panels

Remove two screws for access to the standardized internal components and wiring. Quick-Adjust Idler Arm With the Quick-Adjust Idler Arm, the belt and sheaves can be quickly adjusted without moving the mounted fan motor. The result is a major savings in time and money.

Reference or Comparative Enthalpy

Measures and communicates humidity while maximizing comfort control.

Sloped Drain Pans Every Precedent unit has a noncorrosive, removable, double-sloped drain pan that’s easy to clean and reversible to allo w installation of drain trap on either side of the unit.

Standardized Components

Components are placed in the same location on all Precedent units. Familiarize yourself with one Precedent and you are familiar with every Precedent. Due to standardized components throughout the Precedent line, contractors/owners can stock fewer parts.

Supply and/or Return Air Smoke Detector

With this option installed, if smoke is detected, all unit operation will be shut down. Reset will be manual at the unit. Return Air Smoke Detectors require minimum allowable airflow when used with certain models.

Thermal Expansion Valve Available for a wider range of applications.

Trane Communication Interface (TCI)

Available factory or field installed. This module when applied with the ReliaTel™ easily interfaces with Trane’s Integrated ComfortTM System.

Tool-less Hail Guards

Tool-less, hail protection quality coil guards shall be either factory or fieldinstalled for condenser coil protection. This option protects the condenser coil from vandalism and/or hail damage.

Unit Cabinet

The compact cabinet with rounded corners takes up less room and is less costly to ship. The beveled and ribbed top is not only aesthetically pleasing, it is designed to prevent water from pooling.

VariTrac

When Trane’s changeover VAV System for light commercial applications is coupled with Precedent, it provides the latest in technological advances for comfort management systems and can allow thermostat control in every zone served by VariTrac.

Ventilation Override Accessory

With the Ventilation Override Accessory installed, the unit can be set to transition to up to 3 different pre-programmed sequences for Smoke Purge, Pressurization, and Exhaust. The transition occurs when a binary input on the RTOM is closed (shorted). This would typically be a hard wired relay output from a smoke detector or fire control panel. The ventilation override kit is available as a field installed accessory.

Zone Sensors

Available in programmable, automatic and manual styles. Precedent offers ultimate flexibility. Units are built to order in our standard “shortest in the industry” ship cycle time.

Rigorous Testing

All of Precedent’s designs were rigorously rain tested at the factory to ensure water integrity.

Actual shipping tests were performed to determine packaging requirements. Units were test shipped around the country to determine the best packaging. Factory shake and drop tests were used as part of the package design process to help assure that the unit arrives at the job site in top condition.

Rigging tests include lifting a unit into the air and letting it drop one foot, assuring that the lifting lugs and rails hold up under stress.

We perform a 100% coil leak test at the factory. The evaporator and condenser coils are leak tested at 200 psig and pressure tested to 450 psig.

All parts are inspected at the point of final assembly. Sub-standard parts are identified and rejected immediately.

Every unit receives a 100% unit run test before leaving the production line to make sure it lives up to rigorous Trane requirements.

Easy to Install Convertible Units

–The units ship in a downflow configuration. They can be easily converted to horizontal by simply moving two panels.

– Units come complete with horizontal duct flanges so the contractor doesn’t have to field fabricate them. These duct flanges are a time and cost saver.

Easy Access Low Voltage Terminal Board

Precedent’s Low Voltage Terminal Board is external to the electrical control cabinet. It is extremely easy to locate and attach the thermostat wire and test operation of all unit functions. This is another cost and time saving installation feature.

Low Voltage Connections

The wiring of the low voltage connections to the unit and the zone sensors is as simple as 1-1, 2-2, and 3-3. This simplified system makes it easy for the installer to wire.

Electric Heaters

Electric heat modules are available within the basic unit. If ordering the Through the Base Electrical option with an Electrical Heater, the heater must be factory installed.

Powered or Unpowered Convenience Outlet

This option is a GFCI, 120v/15amp, 2 plug, convenience outlet, either powered or unpowered. This option can only be ordered when the Through the Base Electrical with either the Disconnect Switch, or Circuit Breaker, option is ordered.

Single Point Power

A single electrical connection powers the unit.

Single Side Service

Single side service is standard on all units.

Through the Base Electrical with Disconnect Switch

Factory installed 3-pole, molded case, disconnect switch with provisions for through the base electrical connections are available.

Through the Base Utilities Access

An electrical service entrance shall beprovided allowing electrical access for both control and main power connections inside the curb and through the base of the unit. Option will allow for field installation of liquid-tight conduit and an external field installed disconnect switch.

Unit Mounted Disconnect or Circuit Breaker

Codes require a method of assured unit shutdown for servicing. Field-installed disconnects sometimes interfere with service access. Factory installation of unit disconnects reduces costs, assures proper mounting and provides the opportunity to upgrade to unit circuit breaker protection.

A wide variety of Factory Installed Options (FIOPs) are available.

Airflow

Airflow is outstanding. The Precedent can replace an older machine with old ductwork and, in many cases, improve the comfort through better air distribution. Belt or direct drive – standard or oversized supply fan motors meet a wide airflow range.

Cooling

Standard or High Efficiency Cooling available.

Economizer

Equipped with either dry bulb, reference or comparative enthalpy sensing, this feature provides free cooling as the outdoor temperature and/or humidity decreases. Economizers, correctly installed, offer a valuable energy savings. Factory-installed economizers save time and ensure proper installation.

High Efficiency Motors

This option is available with efficiency ratings from 86.5 up to 91.0. It is not available for all models.

Low Ambient Cooling

All Precedent microprocessor units have cooling capabilities down to 0°F as standard. Electromechanical models have cooling capabilities to 40°F as built, or to 0°F by adding the optional low ambient control (frostat).

Oversized Motors

Factory or field installed oversized motors available for high static applications.

One of our Finest Assets:

Trane Sales Representatives are a Support Group that can assist you with:

— Product

— Application

— Service

— Training

— Special Applications

— Specifications

— Computer Programs and much more

Precedent has the features and benefits that make it first class in the light commercial rooftop market.

Application of this product should be within the cataloged airflow and cooling considerations.

Low Ambient Cooling

The Precedent™ line features, with ReliaTel™ microprocessor controls, low ambient cooling down to 0°F. With electromechanical controls, Precedent features low ambient cooling to 40°F. The following options need to be included/ considered when low ambient applications are required: continuous fan operation, crankcase heaters, thermal expansion valves, frostat. Contact your local Trane Representative for more assistance with low ambient cooling applications.

Barometric Relief

This product line offers an optional barometric relief damper for use in conjunction with economizer option. This accessory consists of gravity dampers which open with increased pressure. As the building air pressure increases, the pressure in the unit return air section also increases, opening the dampers and relieving the conditioned space.

Barometric Relief

Condensate Trap

The evaporator is a draw-thru configuration. A trap must be field provided prior to start-up on the cooling cycle.

Clearance Requirements

The recommended clearances identified with unit dimensions should be maintained to assure adequate service maximum capacity and peak operating efficiency. Actual clearances which appear inadequate should be reviewed with the local Trane sales personnel.

Unit Pitch

These units have reversible sloped condensate drain pans. Units must be installed level, any unit slope must be toward the side of unit where condensate drain is connected.

Precedent™ 3-5 Tons — 60 Hz13 SEER R-22, R-410A15 SEER R-410APackaged Cooling, Heat Pumps (T*C), (WSC)Packaged Gas/Electric (Y*C)

RT-PRC023-EN

Voyager™ I Rooftop Units

Cooling-only TSD/TSH 060 072 102 120

Reversible WSD/WSH 060 072 090

Gas-fi red YSD/YSH 060 072 090 102 120

Foreword

These instructions are given as a guide to good practice in the installation, start-up, operation, and maintenance by the user, of Trane TSD/TSH, WSKD/WSH and YSD/ YSH units. They do not contain full service procedures necessary for the continued successful operation of this equipment. The services of a qualified technician should be employed through the medium of a maintenance contract with a reputable service company. Read this manual thoroughly before unit start-up. TSD/TSH units are designed to operate in cooling mode only, with optional auxiliary heat (electric heater or hot water coil). WSD/WSH can operate in cooling mode or heating mode by reversing the refrigeration cycle with or without auxiliary heat. YSD/YSH units are designed to operate In cooling mode and equipped with a gas fired heating module. TSD/TSH, WSD/WSH and YSD/YSH units are assembled, pressure tested, dehydrated, charged and run tested before shipment.

Warnings and Cautions

Warnings and Cautions appear at appropriate sections throughout this manual. Your personal safety and the proper operation of this machine require that you follow them carefully. The constructor assumes no liability for installations or servicing performed by unqualified personnel.

WARNING! Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION! Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices or for equipment or property-damage-only accidents.

Reception

On arrival, inspect the unit before signing the delivery note. In case of visible damage: The consignee (or the site representative) must specify any damage on the delivery note, legibly sign and date the delivery note, and the truck driver must countersign it. The consignee (or the site representative) must notify Trane Epinal Operations - Claims team and send a copy of the delivery note. The customer (or the site representative) should send a registered letter to the last carrier within 3 days of delivery.

Warranty

Warranty is based on the general terms and conditions of the manufacturer. The warranty is void if the equipment is repaired or modified without the written approval of the manufacturer, if the operating limits are exceeded or if the control system or the electrical wiring is modified. Damage due to misuse, lack of maintenance or failure to comply with the manufacturer’s instructions or recommendations is not covered by the warranty obligation. If the user does not conform to the rules of this manual, it may entail cancellation of warranty and liabilities by the manufacturer.

Refrigerant

The refrigerant provided by the manufacturer meets all the requirements of our units. When using recycled or reprocessed refrigerant, it is advisable to ensure its quality is equivalent to that of a new refrigerant. For this, it is necessary to have a precise analysis made by a specialized laboratory. If this condition is not respected, the manufacturer warranty could be cancelled.

Storage

Take precautions to prevent condensate formation inside the unit’s electrical components and motors

when:

1. The unit is stored before it is installed; or,

2. The unit is set on the roof curb and temporary auxiliary heat is provided in the building. Isolate all side panel service entrances and base pan openings (e.g., conduit holes, S/A and R/A openings, and flue openings) to minimize ambient air from entering the unit until it is ready for start-up. Do not use the unit’s heater as temporary heat without completing the start-up procedures detailed under “Unit Start-Up”. The Trane Company will not assume responsibility for equipment damage resulting from accumulation of condensate on the unit electrical components.

Maintenance Contract

It is strongly recommended that you sign a maintenance contract with your local Service Agency. This contract provides regular maintenance of your installation by a specialist in our equipment. Regular maintenance ensures that any malfunction is detected and corrected in good time and minimizes the possibility that serious damage will occur. Finally, regular maintenance ensures the maximum operating life of your equipment. We would remind you that failure to respect these installation and maintenance instructions may result in immediate cancellation of the warranty.

Training

To assist you in obtaining the best use of it and maintaining it in perfect operating condition over a long period of time, the manufacturer has at your disposal a refrigeration and air conditioning service school. The principal aim of this is to give operators and technicians a better knowledge of the equipment they are using, or that is under their charge. Emphasis is particularly given to the importance of periodic checks on the unit operating parameters as well as on preventive maintenance, which reduces the cost of owning the unit by avoiding serious and costly breakdown.

RT-PRC019E-E4

Voyager™ I

Rooftop Units

Cooling-only TSD/TSH 060-072-090-102-120

Heat pump WSD/WSH 060-072-090

Gas-fi red YSD/YSH 060-072-090-102-120

Trane Precedent and Voyager rooftop units offer:

Lower energy use and energy bills — Trane® eFlex™variable-speed compressors and fans precisely match output to the cooling demands of the space for ultra–high EER and IEER, enabling a full range of solutions like single-zone and multi-space VAV.

Lowest operating costs — Trane eDrive™ direct–drive fans save energy and operate more quietly than competing units, and the beltless design reduces maintenance over the lifetime of the unit.

Lowest installed costs — Factory–installed options can eliminate costly field labor charges for the lowest possible installed costs.

Fastest delivery — Most units can be ready in as few as two weeks–order to ship–the fastest delivery time in the industry.

The lowest costs. The highest efficiency. The fastest delivery time. For all these reasons and more, Trane Precedent and Voyager rooftop units aren't just the perfect choice–they're the only choice.

When it comes to HVAC expenses, every dollar counts. From

your initial investment to monthly utility costs and maintenance,

a light-commercial rooftop unit can have a significant impact

on your bottom line—which is why a Trane® Precedent™ lightcommercial

rooftop unit can be the perfect choice.

No competing light-commercial rooftop unit has a lower installed cost than

the Trane Precedent—and with its industry-leading efficiency and low

maintenance requirements, no other unit has a lower total cost of ownership.

And once you’ve made the wise decision that a Trane Precedent lightcommercial

rooftop unit is the right solution for your building, it’s good to

know that no other light-commercial rooftop unit can be delivered as quickly

as the Trane Precedent, with most units ready in as few as two weeks—order

to ship.

The lowest costs. The highest efficiency. The fastest delivery time. For all

these reasons and more, a Trane Precedent light-commercial rooftop unit

isn’t just the perfect choice—it’s the only choice to extend the life of your

building and improve the lives of those within it.

Ultra-high efficiency means ultra-low operating costs

Precedent ultra-high-efficiency models continue the Trane tradition of leadership in energy efficiency with these innovations.

• Trane eFlex™ variable-speed compressors and fans (available fall 2013) deliver the performance building occupants need, while also delivering the efficiency building owners want. By precisely matching output to the cooling demands of the space, Trane eFlex compressors and fans operate at their fastest levels when demand is high, and modulate to slower levels when demand is less, for an ultra-high Energy Efficiency Ratio (EER, which measures efficiency at peak output) and Integrated Energy Efficiency Ratio (IEER, a measurement of efficiency at variable workloads). The result: lower energy use and smaller energy bills.

• Trane eDrive™ direct-drive fans save energy and operate more quietly than competing units. These highly efficient fans feature a beltless design, which reduces maintenance over the lifetime of the unit and lowers operating costs.

Customized to fit your unique needs and delivered quickly

Because Trane recognizes that every building is different, we offer a wide range of factory-installed options on Precedent rooftop units, such as coated condenser coils, stainless steel drain pans, unit-mounted circuit breakers and more. Every Precedent unit can be customized to meet your exact needs, so you don’t have to compromise.

Factory-installed options are rigorously tested to dramatically reduce the amount of time and money spent installing and commissioning units in the field, as well as the chances for installation errors. Even the most highly configured Precedent units are ready in as few as two weeks—the fastest delivery time in the industry. You’ll spend less time waiting for your new Precedent rooftop unit and more time enjoying its cooling performance.

The Trane Human Interface Panel: More information,

more effectively delivered The optional Trane Human Interface Panel (available fall 2013) represents a breakthrough in unit controls, delivering comprehensive information about system performance on a large, easy-to-read color touchscreen display. Unlike competing displays, information shown on the Human Interface Panel is understandable at a glance—without requiring time-consuming decoding. Technicians can quickly and easily monitor important system operating parameters in real time, and compare current information with past performance—information that can be invaluable in keeping your Precedent rooftop unit working optimally. The Human Interface Panel also allows technicians to change certain system set points right from the panel, aiding in start-up, preventive maintenance tasks and troubleshooting.

Trane Intelligent Services for 24/7 peace of mind

The available Trane Intelligent Services (TIS) can monitor and evaluate real-time data from Precedent units around the clock, 365 days a year. If an immediate or potential problem is detected, Trane can notify the building operator or dispatch technicians to the equipment’s location. Continuous monitoring and expert data analysis can allow problems to be addressed quickly, reducing the likelihood that building occupant comfort will be impacted.

Trane combines technological innovation with legendary durability and performance to create the lowest cost of ownership. Trane® Precedent™ rooftop units not only offer the lowest installed cost, they also can reduce utility bills and maintenance requirements to create the lowest total cost of ownership in units that can operate at peak performance for as long as 20 to 30 years.

Trane eFlex variable-speed compressor and fan technology

Trane eFlex™ variable-speed compressors and fans deliver the performance building occupants need, while also delivering the efficiency building owners want. By precisely matching output to the cooling demands of the space, Trane eFlex compressors and fans operate at their fastest levels when demand is high, and modulate to slower levels when demand is less, for an ultra-high Energy Efficiency Ratio (EER, which measures efficiency at peak output) and Integrated Energy Efficiency Ratio (IEER, a measurement of efficiency at variable workloads). The result: lower energy use and smaller energy bills.

Trane eDrive direct-drive fan technology

Trane eDrive™ direct-drive fans save energy and operate more quietly than competing units. These highly efficient fans feature a beltless design, which reduces maintenance over the lifetime of the unit and lowers operating costs.

Variable air volume (VAV) option (Not shown)

Precedent rooftop systems offer both single-zone and multi-space VAV. ReliaTel™ controls can integrate with existing VAV solutions to interface with both Tracer™ and Tracker™ control platforms. Together, they deliver energyefficient solutions for every building need—and require minimal setup and commissioning. With the single-zone VAV option, the system modulates indoor fan and stage compressors as space temperature changes, for increased part-load efficiency and more precise temperature control.

Trane Human Interface Panel

A large, easy-to-read color touchscreen display delivers important system information at a glance—without requiring time-consuming decoding. This factory-installed option allows technicians to quickly and easily monitor important system operating parameters in real time, and compare current information with past performance— information that can be invaluable in keeping your Precedent rooftop unit working optimally. The Human Interface Panel also allows technicians to change certain system set points right from the panel, aiding in start-up, preventive maintenance tasks and troubleshooting.

MERV 8 and MERV 13 filters

High-efficiency filtration for better indoor air quality and occupant comfort. Using a MERV 13 air filter, Precedent units can remove contaminants as small as 0.3 microns in size, which can include bacteria, cooking oil, smoke, insecticide dust and paint pigments.

All-aluminum microchannel (MCHE) condenser coil

A more environmentally friendly condenser coil features improved durability and reliability. A recessed design protects fins from incidental damage, while increased coil rigidity enhances durability. The coil’s design dramatically reduces the opportunity for leaks, and all-aluminum construction minimizes corrosion and eliminates formicary corrosion. An optional coil coating can further safeguard against corrosion. The coil also uses less refrigerant, making it more environmentally friendly and meeting the requirements of LEED EA Credit 4.

Hot gas reheat (Not shown)

Heat energy is recycled from the compressor to reduce indoor air humidity, eliminating the need for a separate heat source to do the job—which saves energy and money. Maintaining proper indoor humidity levels improves indoor comfort and can eliminate costly moisture-related damage to the building.

Hot gas reheat (Not shown)

Foil-faced insulation

Foil-faced insulation edges are captured and sealed, reducing the chance for insulation fibers to enter the air stream and clog filters, which reduces maintenance needs and costs.

Hinged access doors

Easy entry to the unit’s service access areas reduces maintenance time—and reduces the opportunity for roof damage, too.

Color-coded, numbered wiring

Faster identification of wires helps save time and money when servicing and diagnosing the unit.

Performance

Trane® products are designed, engineered, built and tested to be solid performers, quietly doing their jobs year after year with minimal need for maintenance and repairs. The Trane Precedent™ light-commercial rooftop units build on a long history of efficient, durable, high-performance HVAC products. And Trane has the Building Information Modeling (BIM) objects to support your building design. Trane BIM objects represent your exact specifications and are pre-populated with data unique to each product configuration, saving time, increasing accuracy and improving how buildings are constructed.

Innovation

Founded a century ago on the belief that imagination and inspiration can overcome any obstacle, the Trane legacy of technological breakthroughs has made it an industry legend. Today’s Trane Precedent rooftop units contain numerous innovative solutions to boost performance and efficiency while maintaining high levels of reliability.

Commitment

The Trane commitment to our customers’ satisfaction begins before a product is installed and lasts for that product’s entire life. As a company, our livelihood depends on the Trane reputation—and the Trane reputation depends both on our products’ performance as well as our relationships with customers. We want every Trane customer to stay a Trane customer. Our commitment to those customers reflects that wish.

Knowledge

To become and remain an industry leader requires a full understanding of existing knowledge and a never-ending quest for new discoveries. For one hundred years, Trane has built and maintained its leadership status in the HVAC industry by employing the brightest and most inquisitive scientists, engineers and design experts—all of whom share a singular passion to know and explore the ever-evolving technology that improves the lives of our customers.

4TCC3018 through 4TCC3060

Single Packaged Convertible Cooling

13 SEER

1½ - 5 Ton

R-410A

Single Packaged Cooling System

Trane offers a complete family of cooling systems, designed to give you the

unbeatable combination of energy efficiency and lower operating costs.

Introducing the new TRANE Single Packaged Cooling System.

Single Packaged Cooling Systems are easy and versatile to install. Because cooling and air handling functions are all contained in a single cabinet, a Trane packaged air conditioner is easy to install and service. It can be flush mounted beside your home at ground level or placed on the roof for horizontal or downflow installation. When connected to an optional Trane thermostat control and air distribution ducts, you have a highly efficient, total home comfort system.

Single Packaged Cooling Systems provide better performance. All major components on these products, including the compressor, have been designed and manufactured for maximum service. Every Climatuff® compressor is designed and manufactured to exacting specifications. Each design is life tested in extreme environments to ensure reliable and long lasting operation in normal applications. Each compressor has internal motor protection for added reliability.

4TCY4024 through 4TCY4060

Single Packaged Convertible Cooling

14 SEER

2 - 5 Ton

R-410A

Single Packaged Cooling Systems provide better performance. Our single packaged air conditioners offer cooling efficiencies that are unmatched in the industry and provide you with a product far superior in performance than the competition.

4YCC3018 through 4YCC3060

Single Packaged Convertible

Gas/Electric 13 SEER

1½ - 5 Ton, 40 - 120 MBTU

R-410A

Single Packaged Convertible Gas/

Electric Systems

Trane offers a complete family of packaged gas/electric heating and cooling systems, designed to give you the unbeatable combination of energy efficiency and lower operating costs. In warm weather, the package gas/electric system functions as an all-electric, high efficiency air conditioner. In cold weather, it operates as a natural gas or propane gas furnace, offering you the best of both energy worlds.

Introducing the new TRANE Single Packaged Convertible Gas/Electric System.

Single Packaged Convertible Gas/ Electric Systems are easy and versatile to install. Because cooling and heating functions are all contained in a single cabinet, a Trane single packaged convertible gas/electric system is easy to install and service. It can be flush mounted beside your home at ground level or placed on the roof for horizontal or downflow installation. When connected to an optional Trane thermostat control, and air distribution ducts, you have a highly efficient, total home comfort system.

Single Packaged Convertible Gas/ Electric Systems are unmatched in quality and reliability.

All major components on these products, including the compressor, have been designed and manufactured for maximum service. Every Climatuff® compressor is designed and manufactured to exacting specifications. Each design is life tested in extreme environments to ensure reliable and long lasting operation in normal applications. Each compressor has internal motor protection for added reliability.

Single Packaged Convertible Gas/ Electric Systems provide better performance.

Our single packaged cooling/heating units offer cooling/ heating efficiencies that are unmatched in the industry and provide you with a product far superior in performance than the competition.

Single Packaged Convertible

Gas/Electric 14 SEER

2–5 Ton

4YCC4024A1060A

4YCC4030A1070A

4YCC4036A1070A

4YCC4036A1090A

4YCC4042A1060A

4YCC4042A1090A

4YCC4048A1070A

4YCC4048A1090A

4YCC4060A1090A

4YCC4060A1115A

Single Packaged Convertible Gas/Electric Systems

Trane offers a complete family of packaged gas/electric heating and cooling systems, designed to provide the unbeatable combination of energy efficiency and lower operating costs. In warm weather, the package gas/electric system functions as an all-electric, high efficiency air conditioner. In cold weather, it operates as a natural gas or propane gas furnace, offering the best of both energy worlds.

Because cooling and heating functions are all contained in a single cabinet, a single

packaged convertible gas/electric system is easy to install and service.

It can be flush mounted beside your home at ground level or placed on the roof for horizontal or

downflow installation. When connected to an optional American Standard thermostat control,

and air distribution ducts, you have a highly efficient, total home comfort system.

Single Packaged Convertible Gas/Electric Systems are unmatched in quality and reliability.

All major components on these products, including the compressor, have been designed and

manufactured for maximum service. Every compressor is designed and manufactured to

exacting specifications. Each design is life tested in extreme environments to ensure reliable and

long lasting operation in normal applications. Each compressor has internal motor protection for

added reliability.

4YCZ6036A through 4YCZ6060A

Single Packaged Convertible Gas/Electric

16 SEER

3, 4 & 5 Ton, 75 - 120 MBTU

R-410A

Single Packaged Convertible Gas/Electric Systems provide better performance.

Our single packaged cooling/heating units offer cooling/heating efficiencies that are unmatched in the industry and provide you with a product far superior in performance than the competition.

4YCY4024 through 4YCY4060

Single Packaged Convertible Gas/Electric

14 SEER

2 - 5 Ton, 40 - 120 MBTU

R-410A

Trane® Foundation™

15- to 25-ton light-commercial rooftop units

Every building should start with a strong foundation. For your building, year-round comfort starts with a Trane® Foundation™ light-commercial rooftop unit—an all-new HVAC solution that truly delivers what you want: Trane performance, quality, reliability and value … all in a rooftop unit with a simple design that ships quickly, can directly replace many competing units, and—above all—is a Trane. The Trane Foundation light-commercial rooftop unit: a solid value that will make your building better for life.

The proven Trane performance you expect—and deserve

You expect a high level of performance from any Trane product, and Trane Foundation rooftop units re no exception. This all-new HVAC solution offers you the confidence that comes from key components that have been tested in the field—simply designed, durable components, including a long-lasting tubular heat exchanger, reliable gas ignition system and proven compressor technology. It all adds up to the perfect combination of new design and verified engineering that’s ready to go to work for you.

The rooftop unit that’s new — designed with help from people like you

Listening to our customers and delivering solutions to meet their needs is what has kept Trane an industry leader for more than a century. Before we began designing the new Foundation rooftop unit, we started by talking to the people whose thoughts, ideas and opinions matter most to us: people who own and use rooftop units. Trane conducted numerous interviews with light-commercial rooftop unit specifiers, owners and users, as well as its Customer Council. Their concerns, suggestions and observations about these products were carefully noted and studied.

That input directly benefits the people who use the Foundation rooftop unit on a daily basis—

the building occupants who experience its comfort and reliability. By listening to our customers,

Trane has made a better product for your customers.

So when you choose a Foundation rooftop unit, know that its form, function and features were

shaped by the people who matter most to us: people like you.

We designed the Trane Foundation from the ground up to be a welcome addition to your rooftop portfolio.

When we conceived the all-new Trane® Foundation™ lightcommercial rooftop unit, we started in the right place: from the beginning, with a fresh look at what a light-commercial rooftop unit can and should be.

Nothing was overlooked. Nothing was taken for granted. Every part of the new Trane Foundation rooftop unit was carefully considered to provide you with a lasting combination of performance, efficiency, reliability and value.

Long-life compressors

Rugged, reliable performance to deliver years of dependable cooling performance.

Tubular heat exchanger

Proven design efficiently maximizes heat transfer; thickgauge construction ensures long service life.

Reliable gas ignition system

Demonstrated performance in many Trane rooftop units currently serving customers, this gas ignition system has a long track record of trouble-free operation.

Foil-faced insulation

Foil-faced insulation edges are captured and sealed, reducing the chance for insulation fibers to enter the airstream and clog filters, which reduces maintenance needs and costs.

All-aluminum microchannel (MCHE) condenser coil

Recessed design protects fins from incidental damage, while increased coil rigidity enhances durability. The coil’s design dramatically reduces the opportunity for leaks, and all-aluminum construction minimizes corrosion. An optional coil coating can further safeguard against corrosion.

Color-coded, numbered wiring

Faster identification of wires helps save time and money when servicing and diagnosing the unit.

Simple control wiring integration

A user-friendly thermostat connection terminal allows for straightforward control wiring, including unit interlock capabilities.

Easy-access service panels (not shown)

Redesigned service panels make accessing the unit’s interior easier and faster to help control maintenance costs.

Discharge line thermostat

Reliability of the refrigeration subsystem is increased with compressor shutdown through the detection of excessive discharge line temperatures in cases of a slow refrigerant leak.

Electrical phase monitor

The unit is prevented from operating in the presence of potentially damaging electrical conditions, including loss of phase, phase reversal and insufficient voltage.

Maximum adaptability

for faster, easier, lessexpensive installations

When designing the new Trane Foundation rooftop unit, we considered everything—including the old rooftop units it will be replacing. That’s why we gave the Foundation rooftop unit a unique dual-footprint design that makes it compatible with multiple roof curbs without adapters or other modifications. We designed the Trane Foundation rooftop unit to easily match up to more buildings’ existing ductwork—and to help you manage your budget and your bottom line.

This footprint configuration matches most existing Trane roof curbs, helping make installations easy. If the old rooftop unit you’re replacing isn’t a Trane … … it’s quick and simple to modify the footprint configuration to match many other roof curb designs, saving the expense of installing an adapter curb.

You want a new rooftop unit.

You don’t want to wait for it.

There’s never a good time for a rooftop HVAC unit to fail. Waiting for its replacement can impact your patience—and, most importantly, your business.

Trane understands that when it comes to rooftop unit replacement, there’s not a moment to spare. This is why we actively manage the manufacturing and inventory of Foundation™ light-commercial rooftop units to ensure models are always ready to ship—often the same day you place an order. That kind of attention to detail isn’t always easy, but neither is waiting for a new rooftop unit.

Modern HVAC efficiency: You’ll notice the difference it can make.

Some rooftop HVAC units can work for a very long time, providing the heating and cooling you need … but at a higher price than you might realize. If your rooftop unit is even five years old, it doesn’t meet today’s standards for energy efficiency. The older that unit is, the more money you’re spending on utility bills to keep it operating.

Trane Foundation rooftop units are certified to meet the most recent energy-efficiency standards established by ASHRAE—your assurance of current design strategies to deliver lower energy consumption and lower utility bills.

RT-PRC060G-EN

Packaged Rooftop Air Conditioners

Foundation™ Cooling and Gas/Electric

15–25 Tons, 60 Hz

Through the years, Trane has designed and developed the most complete line of Packaged

Rooftop products available in the market today.

Trane customers demanded a product that provided exceptional reliability, was easy to install,

and was competitively priced. Trane listened and is proud to introduce the new Trane

Foundation™ Light Commercial rooftop unit.

With Foundation, Trane continues to provide the highest standards in quality and reliability,

comfort, performance, and ease of installation.

Standard and Optional Features at a Glance

Standard Features

• 2” throwaway filters

• 5kA SCCR (Short Circuit Current Rating)

• 5 year Limited Compressor Warranty

• 5 year Limited Heat Exchanger (15–17½ ton); 1 Year on 20 and 25 Tons

• 1 year Limited Parts Warranty

• Belt Drive Motors

• Cleanable Condensate Drain Pan

• Colored and Numbered Wiring

• Convertible Airflow (dedicated downflow only on high gas heat models)

• Cooling to 40°F

• Discharge Line Thermostat

• Electromechanical Controls

• Easy Access Low Voltage Terminal Board (LTB)

• Foil-Faced and Edge Captured Insulation

• High Pressure Cutout

• Liquid Line Refrigerant Drier

• Microchannel Type Condenser Coils

• Operating Charge of R-410A

• Phase Monitor

• Provisions for Through-the-Base Electrical

• Quick Access Panels

• Quick Adjust Fan Motor Mounting Plate

• Single Point Power

• Single Side Service

• Standardized Components

• Tubular Aluminized Steel heat Exchanger

Factory Installed Options

• Complete Coat™ Microchannel Condenser Coil

• Multi-Speed Indoor Fans (utilizing VFD)

• Stainless Steel Heat Exchanger with 10 Year Warranty

Factory or Field Installed Options

• Barometric Relief1

• Condensate Overflow Switch

• Economizer (Downflow)1

• Electric Heaters

• Low Leak Economizer with Fault Detection and Diagnostics and 5 Year Limited Warranty -

Downflow

• Manual Outside Air Dampers

• Motorized Outside Air Dampers

• Oversized Motor9

• Reference or Comparative Enthalpy Economizer

• Through the Base Electrical Access

• Through the Base Gas Piping

• Unit Mounted Non-Fused Disconnect Switch

Field Installed Options

• Crankcase Heater

• Demand Control Ventilation with CO2 Sensor

• Economizer (Horizontal)

• Frostat™

• High Altitude Kit

• High and Low Static Drive Kits

• Low Ambient Kit

• Low Leak Economizer with Fault Detection and Diagnostics and 5 Year Limited Warranty -

Horizontal

• LP Conversion Kit

• Powered Exhaust

• Remote Potentiometer

• Roof Curb

• Thermostat

• Tool-less Hail Guard

Other Benefits

• Cabinet Design Ensures Water Integrity

• Convertible Airflow - Downflow to Horizontal Airflow Configuration

• Ease of Service, Installation and Maintenance

• Mixed Model Build Enables “Fastest in the Industry” Ship Cycle Times

• Rigorous Testing

• Unmatched Product Support Outstanding Standard Features

Colored and Numbered Wiring Save time and money tracing wires and diagnosing the unit.

Compressors

Foundation™ contains the best compressor technology available to achieve the highest possible

performance. Dual compressors are outstanding for humidity control and part load cooling

conditions.

Controls—Electromechanical

This 24-volt control includes the control transformer and contactor pressure lugs for power wiring.

Convertible Units

Foundation units ship in the downflow configuration. A horizontal conversion kit, consisting of two downflow duct covers, is needed to convert the unit from a downflow to a horizontal airflow configuration. Units come complete with horizontal duct flanges so the contractor doesn't have to field fabricate them. These duct flanges are a time and cost saver. Units also have the ability to fit Trane and other competitors roof curbs (Carrier). In a matter of minutes, you can go from the Trane configuration to the Carrier configuration by simply changing the return air opening plate. This design allows for easy field conversion and eliminates the need for costly adapter curbs.

Discharge Line Thermostat

A bi-metal element discharge line thermostats installed as a standard feature on the discharge line of each system. This standard feature provides extra protection to the compressors against high discharge temperatures in case of loss of charge, extremely high ambient and other conditions which could drive the discharge temperature higher.

Efficiency

Product efficiencies meet the requirements of ASHRAE 90.1 - 2010.

Easy Access Low Voltage Terminal Board

Foundation™ Low Voltage Terminal Board is mounted outside the main electrical control cabinet. It is extremely easy to locate and attach the thermostat control wiring and also test operation of all unit functions. This is another cost and time saving installation feature.

Foil Faced Insulation

All panels in the evaporator section of the unit have cleanable foil-faced insulation. All edges are

either captured or sealed to ensure no insulation fibers get into the airstream.

Heat Exchanger

The cabinet features a tubular heat exchanger in, low, medium and high heat capacities. The heat exchanger is fabricated using stainless steel burners and corrosion-resistant aluminized steel tubes as standard on all models. As part of the heat exchanger assembly, an induced draft blower is used to pull the gas mixture through the burner tubes. A direct spark ignition system, which doubles as a safety device to prove the flame, is used to ignite the gas mixture.

Low Ambient Cooling

All Foundation units have cooling capabilities down to 40°F as standard.

Low Voltage Connections

The wiring of the low voltage connections to the unit and the thermostat is as simple as R-R, G-G, Y-Y, and W-W. This simplified system makes it easy for the installer to wire.

Precedent™

3-to 10-ton light commercial convertible units with ReliaTel™ microprocessor controls

Sleek exterior

A sleek compact cabinet with rounded corners for safety makes Precedent easy to handle. With its versatility and easy handling, it is a perfect match for the most complex or the simplest - light commercial applications.

Sleek exterior

Ultimate flexibility

Who is in the best position to decide which features meet your specific application needs? You, the customer, of course. Trane’s Precedent offers the most flexible light commercial packaged air conditioners in the industry. These units with convertible airflow are not prepackaged; you order and pay for only those options you really need.

Things like:

• 1-inch filters with rack capable of accepting 2-inch filters

• Direct or belt drive, standard or oversizedevaporator fan motors

• Gas/electric, cooling only, heat pumps

• R-410A refrigerant available on 3, 4 and 5 ton 13 SEER, 15 SEER and 6-10 ton models

• Low, medium or high heat gas heating capacities

• ReliaTel™ microprocessor or electromechanical controls

• Thermal expansion valve refrigerant control

• Standard or high efficiency cooling capacities

• Wide array of electric heat options

• 17 Plus 3-5 ton high efficiency gas/electric and cooling units available

Quality and reliability

• Scroll compressor

• Microchannel coils standard on T/YSC 6, 7½ (single/dual systems), 8½, 10 ton standard efficiency models and T/YHC 4, 5, 6, 7½ ton high efficiency)

• Progressive tubular aluminized steel heat exchanger

• Optional stainless steel heat exchanger with 10-year warranty

• Double sloped and reversible condensate drain pan (stainless steel optional)

• Easy to install Converts from downflow to horizontal by moving two panels

• Single-side access

• Easy access low voltage terminal board

• Single point power connection

• ReliaTel controlled units operate as standard with zone sensor or thermostat

• Standard through the base condensate connections

• Optional condensate overflow switch

Easy to service

• Patent pending multi-row condenser coil designed with gaps for easy cleaning

• ReliaTel assists service through the use of builtin test modes

• Standardized components

• Single-side service

• Colored and numbered wiring

• Easy adjust belt drive motors

Factory installed options

The following options ship factory-installed

within our standard “shortest in the industry” ship cycle time.

• Unit disconnect or circuit breakers ensure unit shutdown for servicing. Factory installation reduces cost, provides proper mounting and the opportunity to upgrade to unit circuit breaker protection.

• Economizer, dry bulb, reference or comparative enthalpy provides free cooling as the outdoor temperature and/or humidity decreases. Economizers offer great energy savings.

• Single Zone Variable Air Volume (SZVAV) reduces energy consumption in single zone applications.

• 115-volt electrical convenience outlet provides a GFI circuit for common air conditioning tools and lighting, as well as providing roof accessible outlets required by NEC.

• Clogged filter and fan failure switches trigger a thermostat service light or building controls system to indicate dirty filters or inoperative fans.

• CompleteCoat™ condenser coil coating is a cathodic epoxy type electrodeposition coating formulated for high edge build to plate fin and tube heat exchangers. The coating provides excellent resistance to corrosion.

• Hinged access doors permit easy entry to the unit’s service access areas.

• CO2 sensing with demand-controlled ventilation (DCV) regulates the rate at which the system brings outdoor air into the building. A CO2 sensor measures the concentration (parts per million) of CO2 in the air. As it changes, the outside air damper modulates to meet the zone’s ventilation needs.

• Ventilation override accessory enables the unit to be set to transition up to 3 different pre-programmed sequences for Smoke Purge, Pressurization, and Exhaust.

• Dehumidification (hot gas reheat) reduces humidity levels while increasing comfort level in the air space. The hot gas reheat coil delivers maximum reheat temperatures and pivots for easy access cleaning.

• Direct or belt drive evaporator fan motors for varying airflow requirements.

- Barometric Relief

- Phase Monitor*

- Supply and/or Return Smoke Detectors*

System controls that give you control

VariTrac™ — A control system that provides a thermostat and the intelligence for comfort control in each zone.

Tracker™ — Tracker building management panel provides microelectronic control and monitoring. Tracker has two-way communication with Precedent and VariTrac by providing status points and alarm messages through a communications link. This process creates a total Integrated Comfort System (ICS).

Tracker software provides scheduling, monitoring and timed override capabilities, as well as local and auto dial-out indication of alarms. Operator interface is simple and user-friendly with icons on the keypad and a two-line liquid crystal display (LCD).

Tracer™ — The Tracer Integrated Comfort System,

when coupled with Precedent, provides the ultimate in centralized control, monitoring, energy management and equipment diagnostic functions.

Tracer™ — The Tracer Integrated Comfort System,

when coupled with Precedent, provides the ultimate in centralized control, monitoring, energy management and equipment diagnostic functions.

Our light commercial rooftop units offer more and cost you less.

When deciding which rooftop unit is best for your building, remember that the initial purchase

is only part of the equation.

You’ll save in every aspect of your budget when you choose Trane.

The superior engineering of our Precedent™ and Voyager™ Light Commercial rooftop units delivers high reliability, easier installation, less maintenance, reduced operating costs and less upfront expense. In short, a lower total cost of ownership.

Easy on your budget

Trane Precedent and Voyager Light Commercial units offer superior engineering while delivering high efficiency air conditioning for new construction as well as replacement installations and retrofits. Unit efficiency surpasses EER minimum by 12%. Precedent high-efficiency rooftop units are 15% more efficient than typical packaged equipment. Energy efficiency can be increased by adding Trane controls, installation, maintenance and Service Level Agreements.

Trane offers:

• Lower supply fan energy costs—a savings of 7-10%—when the unit operates in continuous fan operation mode.

• Three stages of cooling on high efficiency, dual-compressor units for more precise temperature control, helping save money all year.

• Industry-leading IEER, helping to stretch an energy budget and provide quicker payback on investment.

Easy to install

These compact rooftop units fit into the same roofcurb as current models, reducing installation time and costs. Preconfigured units come with factory-installed options to eliminate expensive and time-consuming accessory field installations.

Easy to install

Easy to maintain

Trane Precedent and Voyager Light Commercial rooftop units offer easy access to filters, compressors and controls through single-side access doors.

• No belts. Precedent high efficiency units feature direct-drive fan motors, reducing maintenance requirements and costs.

• Test mode operation can indicate where potential problems exist, reducing overall service cost.

• Unit designed for easy coil cleaning to eliminate maintenance time, thereby increasing unit efficiency.

Improved indoor air quality

MERV 13 high efficiency filtration option reduces the amount of particles in the air and provides better air quality.

• C02 controls available to bring in more outside air when occupancy levels are high.

• Hot gas reheat available for humidity control.

• Cleanable dual sloped drain pans to reduce microbial growth.

Quiet operation

Select models of Precedent Light Commercial units include an ultra quiet plenum fan, which enables them to meet or exceed rigorous requirements for acoustic standards compliance. Because of the plenum fan and other sound mitigating design techniques—along with software modeling tools such as the Trane Acoustics Program—these units can provide a cost effective solution for your building and help deliver a quieter environment.

Designed primarily for classroom use, the Precedent line offers models in the 3- to 10-ton range, while the Voyager Light Commercial line features rooftop units from 12½ to 25 tons—perfect for lunchrooms, gymnasiums and auditoriums.

Trane Precedent and Voyager Light Commercial rooftop units provide quieter operation and can be configured to comply with rigorous acoustic standards. Studies show when noise levels are reduced, test scores improve.

And because of advanced filtration technology, both lines deliver improved indoor air quality. A healthier learning environment helps reduce absenteeism and improve teacher retention.

MERV 13 Filter

High efficiency filtration allows for delivering improved indoor air quality—a key qualifying component for LEED EQ credit 5.

Direct-Drive Plenum Fan*

Potential to achieve quieter operating environment. High efficiency, direct-drive fan allows for ease of service and overall lower cost of ownership. Easier start-up time in reducing overall time on the jobsite. No belts means less waste.

Phase Monitor

Protects unit from phase reversal, loss of phase and voltage imbalance.

Three Stages of Cooling**

Enhanced comfort through matching cooling load, savings. Allows for increased part load efficiency.

Three Stages of Cooling**

Enhanced comfort through matching cooling load, savings. Allows for increased part load efficiency.

Drain Pan

Non-corrosive, double sloped, reversible condensate drain pan is easy to clean and easy to install.

Condenser Coil

Patent-pending multi-rowcondenser coil designed with gaps for easy cleaning

Color-Coded,

Numbered Wiring Saves time and money when servicing and diagnosing the unit.

Hinged Access Doors

Permit easy entry to the unit’s service access areas. Also reduces opportunity for roof damage.

ReliaTel

Microprocessor Controls Onboard diagnostics allows for easy startup and trouble shooting.

The Plenum Fan: Key to a Quieter Classroom

A standard feature on our dual-compressor, high efficiency Precedent units, the plenum fan offers the quiet, unobtrusive operation you need for an effective learning environment, as well as reduced maintenance costs.

• Backward incline blade design performs at a whisper, allowing for a more efficient indoor sound mitigation plan.

• Fewer blades to clean and maintain.

• High efficiency, variable-speed indoor fan motor:

– Requires less power, reducing energy costs.

– Direct-drive motor eliminates maintenance associated with belt replacement and tensioning.

Humidity control with

rooftop systems

Air quality, conditioning, recycled energy, humidity solutions

A hot gas reheat system in essence “wrings” moisture from the air, providing occupants a more comfortable environment to learn, work, rehabilitate or play. For the building owner, it means decreased maintenance expense due to damage caused by interior moisture.

Drier buildings simply feel better. Humiditymanaged facilities offer a greater sense of comfort, and a healthier environment. Dehumidification is an on-going process of reducing or removing excess moisture from the air. Controlled humidity improves comfort, reduces moisture-based contaminant growth, and preserves building interiors.

Indoor Air Quality (IAQ)

The air we breathe is an especially important consideration when choosing a mechanical system. Properly conditioned indoor air goes beyond quality—it encompasses the health and safety of facility occupants. Humidity control provides a positive means to increase a building’s IAQ, while decreasing health issues and absenteeism. In addition, humidity control helps to preserve building structures and furnishings by reducing moisture-based contaminants that have the potential to cause damage.

Climate conditioning

While dehumidifying a building does not reduce temperature, it makes the air “feel” warmer. Keeping indoor humidity at acceptable levels:

• Greatly improves comfort

• Decreases occupant complaints

• Increases market values of facilities

The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) has developed Standard 62-2001, Ventilation for Acceptable Indoor Air Quality. It addresses indoor moisture and microbial growth by recommending:

Moisture control

One of the key steps to creating an interior environment that offers a comfortable atmosphere for learning, working, rehabilitation and recreational activities is to understand how moisture enters a building. Moisture enters a building in either a liquid or vapor state. Leaky roofs and damp carpets, condensation on cold surfaces, or leaky pipes can all contribute to liquid moisture. In a vapor state, moisture may enter the building through an outside ventilation system, human respiration, cooking, wet cleaning, or infiltration through cracks and other exterior openings.

Moisture removal

Regardless of how moisture enters a building, it has the potential to cause disruption, illness and damage. Removing unwanted moisture will significantly enhance any interior environment.

Relative humidity in habitable spaces preferably should be maintained between 30 percent and 60 percent to minimize the growth of allergenic pathogenic organisms.”

A humidity control solution!

Trane’s hot gas reheat dehumidification system can help facility designers and operators keep their buildings in their “comfort zone.” With a single unit, the system senses and controls both space humidity and temperature independently. The system operates conventionally when there is a demand for cooling without dehumidification, but on those humid days, the hot gas reheat system will remove unwanted moisture from the air. The result: both temperature and humidity are maintained without the wasteful and costly use of new energy.

The hot gas reheat system recycles energy that would otherwise be wasted. Dehumidification allows for and improved indoor air quality.

Trane combines technological innovation with legendary durability and performance to create the lowest cost of ownership. Trane® Precedent rooftop units not only offer the lowest installed cost, they also can reduce utility bills and maintenance requirements to create the lowest total cost of ownership in units that can operate at peak performance for as long as 20 to 30 years.

Trane Precedent ultra-high-efficiency models continue the Trane tradition of leadership in energy efficiency with these innovations:

Trane eFlex variable-speed compressors and fans deliver the performance building occupants need, while also delivering the efficiency building owners want. By precisely matching output to the cooling demands of the space, Trane eFlex compressors and fans operate at their fastest levels when demand is high, and modulate to slower levels when demand is less, for an ultra-high Energy Efficiency Ratio (EER, which measures efficiency at peak output) and Integrated Energy Efficiency Ratio (IEER, a measurement of efficiency at variable workloads).

The optional Trane Human Interface Panel represents a breakthrough in unit controls, delivering comprehensive information about system performance on a large, easy-to-read color touchscreen display. Technicians can quickly and easily monitor system operating parameters in real time, and compare current information with past performance to keep your Precedent rooftop unit working optimally.

Even the most highly configured Trane Precedent units are ready in as few as two weeks—the fastest delivery time in the industry.

Precedent™ 17 Plus rooftop unit

A solution for green schools

The facts are in: The creation of green schools offers proven benefits beyond the obvious environmental advantages. High performance schools cost less to operate. Upgrading systems for energy efficiency presents a prime opportunity to introduce new HVAC technologies that influence student and teacher health and productivity.

Follow the new rules

A growing number of states are implementing policies for green schools and regulations for Indoor Air Quality (IAQ). At Trane, we did our homework and came up with the industry’s most practical solution: The new Precedent™ 17 Plus packaged rooftop unit is the ideal choice for schools today.

Energy efficiency: Precedent schools the competition

At 17.5 SEER, this ENERGY STAR® rated Precedent is one of the most energy-efficient packaged rooftop units in the industry. It is up to 17 percent more efficient than the competition, and exceeds federal minimum requirements by over 30 percent.Of course, improved energy efficiency translates directly to reduced energy cost. Precedent 17 Plus gives school districts the opportunity to save money. By reducing monthly heating and cooling costs, Precedent 17 Plus provides a fast return on investment (ROI), and promises long-term savings that bring relief to financiallystressed operating budgets.

Indoor Air Quality: Precedent cleans up in every category

Published studies link poor Indoor Air Quality (IAQ) to asthma and other illnesses.1 Schools striving to provide a healthy learning environment for students can look to Precedent 17 Plus for advanced technologies that help manage many environmental health hazards—including dust, excessive moisture and chemical vapors.

The Precedent 17 Plus rooftop unit is available with an enhanced indoor fan cycle and variable capacity compressor capabilities. This includes a factory-installed and programmed Electronically Commutated Motor (ECM) that varies system supply airflow for superior humidity control, comfort, energy efficiency and sound levels at part load conditions. It also provides higher efficiency and significant cost savings during continuous fan operation.

The variable capacity compressor in the Precedent 17 Plus rooftop unit provides accurate temperature and humidity control in the space. When the compressor unloads based on space demand, energy consumption is reduced and system efficiency increases.

In addition, Precedent 17 Plus features a new single zone variable air volume control cycle. This feature provides accurate temperature and humidity control by adjusting both fan and compressor stages to maintain comfort within the space. A range of available filtration options—up to

The affordable solution

Today the financial benefits of creating a sustainable school are about 20 times greater than the cost of going green.2 Green schools are now more affordable due to the introduction of many practical innovations like Precedent 17 Plus. This exclusive rooftop unit offers an affordable price point that is easy on the capital budget, mounts on a standard roof curb, and reduces maintenance and utility costs during operation.

Optional high efficiency MERV 13 filters are available to control airborne contaminants, including bio-aerosols, and to meet the requirements of LEED EQ Credit 5

Reduce noise distraction: Multiple fan speeds result in quieter operation

Optional enhanced dehumidification control alleviates humidity in problem

areas.

Foil-faced insulation allows for easy cleaning

Compatible with BACnet™ controls (open protocol)

Standard phase monitors enhance compressor reliability

Service calls are completed faster when Precedent 17 Plus is installed with

optional ReliaTel™ controls

Control temperature and humidity more accurately and economically: Single zone variable air volume (VAV) bases fan and compressor speeds on internal space load requirements

Non-corrosive, double-sloped drain pan simplifies maintenance and reduces the potential for microbial growth

Demand control ventilation optimizes outdoor air needs based on space CO2

levels

Trane customers demand products that provide exceptional reliability, meet stringent performance requirements, and are competitively priced.Trane delivers with Precedent™.