Trane Voyager 12.5 to 25 Tons Catalogue

Product Catalog

Packaged Rooftop Air Conditioners Voyager™ – Heat Pump

12½ – 20 Tons – 60 Hz

June 2014

PKGP-PRC012M-EN

Introduction

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 revolutionize this design concept.

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

Voyager 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 all of this with Voyager.

Voyager 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 Voyager Products are built to meet your needs.

It’s Hard To Stop A Trane®.

This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

Trademarks

Trane and the Trane logo, Frostat, Integrated Comfort, ReliaTel, Tracer, are trademarks of Trane in the United States and other countries. All trademarks referenced in this document are the trademarks of their respective owners.

Revision Summary

PKGP-PRC012M-EN (12 Jun 2014)

• Updated Low Leak Economizer Factory and Field Installed Option

• Updated Features & Benefits, Model Number Description, Performance Data, Weights, and Mechanical Specifications

Table of Contents

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Standard and Optional Features at a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Outstanding Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Variety of Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Other Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Cooling Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Heating Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Factory Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Factory or Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Other Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Factory Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Factory or Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Model Number Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Field Installed Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Zone Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Typical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Jobsite Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Factory Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Factory or Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

PKGP-PRC012M-EN 3

Features and Benefits

Voyager has the features and benefits that make it first class in the light commercial rooftop market. Designed with input from field contractors and engineers, its U-shaped airflow performance is outstanding.

Figure 1. Voyager features

Foil-Faced Insulation

Quick Adjust Idler Pulley

ReliaTel™ Microprocessor Controls

Colored and Numbered Wiring

Low Ambient Cooling to Zero° F

High and Low Pressure Switches

Scroll Compressors (R-410A)

Available in R-410A refrigerant

Hinged Access Doors

Single Side Service

Smoke Detector

Fan Failure Switch

Clogged Filter Switch

Through-the-Base Electrical

Disconnect Switch or Circuit Breaker

Convenience Outlet

Variable Frequency DriveQ

Standard and Optional Features at a Glance

Standard Features

• 2” throwaway filters

• 5 year Limited Compressor Warranty

• 1 year Limited Parts Warranty

• Anti-Short Cycle Timer

• Belt Drive Motors

• Colored and Numbered Wiring

• Crankcase Heaters

• Dedicated Airflow

• Easy Access Low Voltage Terminal Board (LTB)

• Foil-Faced and Edge Captured Insulation

• High Pressure Cutout

• IAQ Sloped Condensate Drain Pan

• Liquid Line Refrigerant Drier

• Low Ambient Cooling to 0°F

• Operating Charge of R-410A

• Patented Hybrid Condenser Coil for Easy Cleaning

•Phase Monitor

• Quick Access Panels

• Quick Adjust Idler Arm Pulley

• ReliaTel™ Microprocessor Controls

• Single Point Power

• Single Side Service

• Standardized Components

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• U-shaped Airflow Pattern

• Variable Frequency Drive (Multispeed Indoor Fan and Single Zone VAV)

Factory Installed Options

• 2” MERV 8 or MERV 13 Filters5 with Filter Removal Tool

• Black Epoxy Pre-Coated Coils

•CO

• Condensate Overflow Switch

• Fault Detection & Diagnostics (FDD)

• High Efficiency Motors

• High Short Circuit Current Rated (SCCR) Electrical Subsystem

• Hinged Access Doors

• Human Interface - 5 inch Color Touchscreen

• Multi-Speed Fan

• Powered or Unpowered Convenience Outlet

• Single Zone Variable Air Volume (SZVAV)

• Stainless Steel Drain Pan

• Supply and/or Return Air Smoke Detector

• Through the Base Electrical with Circuit Breaker

• Through the Base Electrical With Disconnect Switch

• Through the Base Utilities Access

Sensor Wiring (Wiring Only)

Features and Benefits

2, 9

10, 11

6, 10, 11

Factory or Field Installed Options

• BACnet™ Communication Interface

• Barometric Relief

• Clogged Filter/Fan Failure Switch

• Discharge Air Sensing Kit

• Economizer - Standard, Downflow

• Electric Heaters5, 7,

• Frostat™

2, 5

• Indoor Fan Motor Shaft Grounding Ring

• LonTalk® Communications Interface

• Low Leak Economizer - Downflow

• Oversized Motors

• Reference or Comparative Enthalpy

• ReliaTel Options Module

• Tool-less Hail Guards

• Trane Communications Interface (TCI)5,

Field Installed Options

•CO2 Sensor

• Digital Display Zone Sensor

• Dual Thermistor Remote Zone Sensor

• Economizer - Standard, Horizontal

• High Static Drive

• Low Leak Economizer - Downflow

• Manual Outside Air Damper

• Motorized Outside Air Dampers

• Powered Exhaust

• Roof Curb (Downflow only)

• Remote Potentiometer

2, 5

3, 5

PKGP-PRC012M-EN 5

Features and Benefits

• Ventilation Override Accessory

• Zone Sensors and Remote Zone Sensors

Note: Explanation of Note

- Note16 located in “Model Number Description,” p. 19.

Other Benefits

• Cabinet Design Ensures Water Integrity

• Ease of Service, Installation and Maintenance

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

• Outstanding Airflow Distribution

• ReliaTel Controls Benefits

• Rigorous Testing

• Unmatched Product Support

•Varitrac

Outstanding Standard Features

Anti-Short Cycle Timer

Provides a 3 minute minimum “ON” time and 3 minute “OFF” time for compressors to enhance compressor reliability by assuring proper oil return.

Colored and Numbered Wiring

Save time and money tracing wires and diagnosing the unit.

Compressors

Voyager contains the best compressor technology available to achieve the highest possible performance. Dual compressors are outstanding for humidity control, light load cooling conditions and system back-up applications. Dual compressors are available on all models.

Condenser Coil

Voyager boasts a patent-pending 1+1+1 condenser coil (pictured right), permanently gapped for easy cleaning.

Controls—ReliaTel

ReliaTel microprocessor controls provide unit control for heating, cooling and ventilating utilizing input from sensors that measure indoor and outdoor temperature and other zone sensors. ReliaTel also provides outputs for building automation systems and expanded diagnostics. For a complete list of ReliaTel offerings, refer to “Other Benefits,” p. 13.

Conversion-less Units

The dedicated design units (either downflow or horizontal) require no panel removal or alteration time to convert in the field — a major cost savings during installation. Horizontal units come complete with duct flanges so the contractor doesn’t have to field fabricate them. These duct flanges are a time and cost saver.

Crankcase Heaters

These band or insertion heaters provide improved compressor reliability by warming the oil to prevent migration during off-cycles or low ambient conditions. These are standard on all Voyager models.

6 PKGP-PRC012M-EN

Features and Benefits

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.

Easy Access Low Voltage Terminal Board

Voyager’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.

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.

Low Ambient Cooling

All Voyager microprocessor units have cooling capabilities down to 0°F as standard.

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.

Motors

All indoor fan motors are belt drive as standard.

Pressure Cutouts

Low and high pressure cutouts are standard on all Voyager models.

Phase Monitor

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

Quick-Access Panels

Remove three or fewer screws for access to the standardized internal components and wiring.

PKGP-PRC012M-EN 7

Features and Benefits

Quick-Adjust Idler Arm

With the Quick-Adjust Idler Arm (pictured right), the belt and sheaves can be quickly adjusted without moving the mounted fan motor. The result is a major savings in time and money.

Single Point Power

A single electrical connection powers the unit.

Single Side Service

Single side service is standard on all units.

Sloped Drain Pans

Standard on every unit.

Standardized Components

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

U-Shaped Airflow Pattern

The U-shaped airflow allows for improved static capabilities.

Variable Frequency Drives - VFD (Multispeed Indoor Fan and SZ VAV Only)

Variable Frequency Drives are factory installed and tested to provide supply fan motor speed modulation, as well as modulating gas heat. VFDs on the supply fan, as compared to inlet guide vanes or discharge dampers, are quieter, more efficient, and are eligible for utility rebates. All VFDs are designed to allow bypass if required. Bypass control will simply provide full nominal airflow in the event of drive failure. Modulating gas heat models with VFDs allow tighter space temperature control with less temperature swing.

Variety of Options

Factory Installed Options

Black Epoxy Pre-Coated Coils

The pre-coated coils are an economical option for protection in mildly corrosive environments.

CO2 Sensor Wiring

This unit wiring for field installed C02 sensors. Factory-installed C02 sensor wiring saves time and ensures proper unit connections for the field installed C02 sensor kits.

Condensate Overflow Switch

A condensate overflow switch is available to shut the unit down in the event that the condensate drain line becomes clogged. This option protects the unit from water overflowing from the drain pan and entering the base of the units.

Fault Detection & Diagnostics (FDD)

This offering meets the mandatory requirement of CA Title 24 of fully configurable diagnostics allowing fault history and reading fault codes at the unit.This option provides detection of the

8 PKGP-PRC012M-EN

Features and Benefits

following faults: Air temperature sensor failure/fault and notification of acceptable economizer mode.The FDD system shall be certified by the Energy Commission as meeting the requirements.

High Efficiency Filtration

Voyager units offer a variety of high efficiency filtration options. MERV 8 and MERV 13 filters provide additional filtration beyond the capabilities of typical 2” throwaway filters. Also, when MERV 8 or MERV 13 filters are ordered, units come equipped with a filter removal tool.

High Efficiency Motors

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

High Short Circuit Current Rating (SCCR)

Voyager rooftop units now have an optional high short circuit current rated electrical subsystem for units with an MOP above 60A. This option is a perfect fit for applications that need protection against high potential fault currents. This option also includes individual over current protection for each compressor and the indoor fan, as well as a dedicated over current protection to the condenser fan motor(s). When the high SCCR is ordered, the control box will have components separated into two sections - high and low voltage components.

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.

Human Interface

The 5 inch Color Touchscreen Human Interface provides an intuitive user interface to the rooftop unit that speeds up unit commissioning, shortens unit troubleshooting times, and enhances preventative maintenance measures. The human interface includes several features such as:

• Data trending capabilities by means of time series graphs

• Historical alarm messages

• Real-time sensor measurements

• On board system setpoints

• USB port that enables the downloading of component runtime information as well as trended historical sensor data

• Customizable reports

Multi-Speed Indoor Fan System

Multi-speed indoor fan system is designed for use in applications for meeting the minimum requirement of CA Title 24. This system incorporates a multi-speed fan control to change the speed of the fan to 67% of full airflow based off compressor stages.

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 Through the Base Electrical with either the Disconnect Switch or Circuit Breaker option is ordered. This option is available on all models.

PKGP-PRC012M-EN 9

Features and Benefits

Single Zone VAV - One Zone Variable Air Volume Mode

Note: Single Zone VAV is designed to be used with a zone sensor. If a unit is configured for Single

Single Zone VAV is designed for use in single zone applications like gymnasiums, auditoriums, manufacturing facilities, retail box stores, and any large open spaces, where there is a lot of diversity in the load profile. Single Zone VAV (SZ VAV) is an ideal replacement to "yesterday's" constant volume (CV) systems, by reducing operating costs while improving occupant comfort. SZ VAV systems combine Trane application, control and system integration knowledge to exactly match fan speed with cooling and heating loads, regardless of the operating condition. Trane algorithms meet/exceed ASHRAE 90.1- 2010, SZ VAV energy-saving recommendations, and those of CA Title 24. The result is an optimized balance between zone temperature control and system energy savings. Depending on your specific application, energy savings can be as much as 20%.

Note: Building system modeling in energy simulation software like TRACE is recommended to

SZ VAV is fully integrated into the ReliaTel Control system and is available today. It provides the simplest and fastest commissioning in the industry through proven factory-installed, wired, and tested system controllers. All control modules, logic and sensors are factory installed, and tested to assure the highest quality and most reliable system available. This means no special programming of algorithms, or hunting at the jobsite for sensors, boards, etc. that need to be installed in the field. Single Zone VAV is a quick and simple solution for many applications and is available from your most trusted rooftop VAV system solution provider- Trane.

Zone VAV operation but is connected to a thermostat, the control will revert to multi-speed (2-Speed) indoor fan control. (See "Multi-Speed Indoor Fan System" above.)

evaluate performance improvements for your application.

Stainless Steel Drain Pan

For excellent corrosion and oxidation resistance, the optional stainless steel drain pan provides a cleanable surface that complement other IAQ solutions such as high efficiency filtration (MERV 8 or 13), and demand control ventilation (CO

Supply, Return, and Plenum Air Smoke Detector

With this option (pictured right) 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.

Supply and/or Return Smoke Detectors may not be used with the Plenum Smoke Detector.

Through the Base Electrical/Horizontal Side Access with Circuit Breaker

This option is a factory installed thermal-magnetic, molded case, HACR Circuit Breaker with provisions for through the base electrical connections.

Through the Base Electrical/Horizontal Side Access 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 be provided allowing electrical access for both control and main power connections inside the curb and through the base of the unit. This option will allow for field installation of liquid-tight conduit and an external, field-installed disconnect switch.

10 PKGP-PRC012M-EN

Factory or Field Installed Options

BACnet™ Communications Interface

The BACnet communications interface allows the unit to communicate directly with a generic open protocol BACnet MS/TP Network Building Automation System Controls.

Barometric Relief

Designed to be used on downflow units, barometric relief is an unpowered means of relieving excess building pressure.

Clogged Filter/Fan Failure Switch

A dedicated differential pressure switch is available to achieve active fan failure indication and/or clogged filter indication.

Discharge Air Sensing Kit

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

Economizer - Standard, Downflow

Economizers are equipped with either dry bulb, reference, or comparative enthalpy sensing. These economizers provide free cooling as the outdoor temperature and/or humidity decreases. Correctly installed, they offer a valuable energy savings. Factory-installed economizers save time and ensure proper installation.

Note: Factory-installed economizers require some field set-up.

Features and Benefits

Economizer - Low Leak, Downflow

This accessory meets low leak requirements for ASHRAE 90.1, IECC, and CA Title 24 standards (3 cfm/ft^2@1" wg exterior air, 4 cfm/ft^2@1" wg return air). This option allows 100% outdoor air supply from 0-100% modulating dampers and is standard with barometric relief. It can be paired with powered exhaust for additional building pressure relief. This option can be paired with or without Fault Detection & Diagnostics (FDD) to meet current mandatory CA Title 24 requirements. Available on downflow units only. The economizers come with three control options, dry bulb and reference or comparative enthalpy (optional).

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.

Frostat™

This capillary bulb embedded in the face of the evaporator coil monitors coil temperature to prevent evaporator icing and protect the compressor. Recommended for applications with low leaving air temperatures, low airflow and/or high latent load applications.

Indoor Fan Motor Shaft Grounding Ring

Shaft grounding rings are used on all VFD driven motors to provide a conductive discharge path away from the motor bearings to ground. Bearing Protection Rings shall be maintenance free circumferential rings of conductive micro fibers that discharge voltages to ground.

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.

Oversized Motors

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

PKGP-PRC012M-EN 11

Features and Benefits

Reference or Comparative Enthalpy

Measures and communicates humidity while maximizing comfort control.

ReliaTel Options Module (RTOM)

The RTOM monitors the supply fan proving, clogged filter, supply air temperature, exhaust fan setpoint, dehumidification setpoint, supply air tempering, Frostat™ and smoke detector.

Tool-less Hail Guards

Tool-less, hail protection quality coil guards (pictured right) shall be either factory or field-installed for condenser coil protection. This option protects the condenser coil from vandalism and/or hail damage.

Trane Communication Interface (TCI)

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

Field Installed Options

CO2 Sensor - Demand Control Ventilation (DCV)

Demand-controlled ventilation (DCV) is a control strategy that responds to the actual demand (need) for ventilation by regulating the rate at which the HVAC system brings outdoor air into the building. A CO2 sensor measures the concentration (parts per million, ppm) of CO2 (Carbon Dioxide) in the air. As the CO the current ventilation needs of the zone. The CO2 sensor kit is available as a field installed accessory. Two field installed kits are offered; C02 sensor and wiring or C02 sensor only. The C02 Sensor only kit should be ordered with factory installed C0 sensor wiring saves set-up time and ensures proper unit connections for the C02 sensor.

concentration changes, the outside air damper modulates to meet

sensor wiring. Factory installed C02

Dampers

0–25 percent manual or 0–50 percent motorized outside air dampers are available.

Digital Display Zone Sensor

The Digital LCD (Liquid Crystal Display) zone sensor has the look and functionality of standard zone sensors.

Economizer - Standard, Horizontal

Economizers are equipped with either dry bulb or reference or comparative enthalpy sensing. These economizers provide free cooling as the outdoor temperature and/or humidity decreases. Correctly installed, they offer a valuable energy savings.

Economizer - Low Leak, Downflow

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.

Powered Exhaust

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.

12 PKGP-PRC012M-EN

Remote Potentiometer

When properly installed in the economizer control circuitry, this accessory provides a remote variable resistance to enable the operator to adjust the minimum damper position.

Roof Curbs

Available for downflow units. Only two roof curbs for the entire Voyager line simplifies curb selection.

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/Thermostats

Available in programmable, automatic and manual styles.

Note: Zone sensors required for units configured for Single Zone VAV indoor fan system control

Other Benefits

Features and Benefits

to enable Single Zone VAV functionality.

Cabinet Integrity

For added water integrity, Voyager has a raised 1-1/8” lip around the supply and return of the downflow units to prevent water from blowing into the ductwork.

Easy to Install, Service and Maintain

Because today’s owners are very cost-conscious when it comes to service and maintenance, Voyager 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. Voyager does this by offering outstanding standard features enhanced by a variety of factory and field installed options, multiple control options, rigorously tested proven designs and superior product and technical support.

Outstanding Airflow Distribution

Airflow is outstanding. The Voyager can replace an older machine with old ductwork and, in many cases, improve the comfort through better air distribution.

ReliaTel™ Controls Benefits

ReliaTel controls provide unit control for heating, cooling and ventilating by 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 the compressor will run for a specific

amount of time which allows oil to return for better lubrication, enhancing the reliability of the compressor.

PKGP-PRC012M-EN 13

Features and Benefits

Voyager 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 Voyager 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 the “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 Packaged Gas/Electric, Cooling, and Heat Pump models. This provides standardization of parts for contractors. Less money is tied up in inventory with ReliaTel.

Rigorous Testing

All of Voyager’s designs were rigorously rain tested at the factory to ensure water integrity. Voyager units incorporate either a one piece top or the Trane-Tite-Top (T3). Each part of the top (either two or three pieces) overlaps in such a way that water cannot leak into the unit. These overlapped edges are gasketed and sealed to ensure superior 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. All coils are pressure and leak tested at a minimum of 450 psig. The completely assembled refrigerant system is leak tested at a minimum of 240 psig with a refrigerant and nitrogen mixture.

All parts are inspected at the point of final assembly. Sub-standard parts are identified and rejected immediately. Every unit receives a 100 percent unit run test before leaving the production line to make sure it lives up to rigorous Trane requirements.

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Features and Benefits

VariTrac

Unmatched Support

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

• Product • Special Applications

• Application • Specifications

• Service • Computer Programs and much more

•Training

Vari Trac

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

Note: Varitrac is not recommended for SZ VAV and Multi-speed indoor fan applications.

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Application Considerations

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

Low Ambient Cooling

This Voyager line features, as a standard, low ambient cooling down to 0°F. Contact your local Trane Representative for more assistance with low ambient cooling applications.

Barometric Relief

This product line offers an optional barometric relief damper included in the downflow economizer accessory. 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.

Important: THE EFFECTIVENESS OF BAROMETRIC RELIEF DAMPER DURING ECONOMIZING

OPERATION IS SYSTEM RELATED. PRESSURE DROP OF THE RETURN AIR SYSTEM SHOULD BE CONSIDERED TO CONTROL BUILDING PRESSURIZATION.

Power Exhaust Accessory

The power exhaust accessory is available on all downflow units. This accessory can be field installed and will assist in relieving a building’s pressurization.

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 serviceability, 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 sloped condensate drain pans. Units must be installed level, any unit slope must be toward access side of unit.

Vari Trac

Varitrac is not recommended for SZ VAV and Multi-speed indoor fan applications.

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Selection Procedure

Cooling Capacity

Step 1

Calculate the building’s total and sensible cooling loads at design conditions. Use the Trane calculation form or any other standard accepted method.

Step 2

Given the following building requirements:

A. Electrical Characteristics: 460/60/3

B. Summer Design Conditions: Entering Evaporator Coil: 80 DB/ 67 WB

Outdoor Ambient: 95 DB

C. Total Cooling Load: 172 MBh

D. Sensible Cooling Load: 122 MBh

E. Airflow: 6000 cfm

F. External Static Pressure: 0.50 in. w.g.

G. Rooftop - downflow configuration.

H. Accessories, Economizer, Supplementary Electric Heat

I. Heating Capacity 100 MBh

460 volt/3 phase Electric Supplemental Heat - at 6000 cfm

Size the equipment using Table 3, p. 24. As a starting point, a rough determination of the size of the unit must be made. This selection will then be confirmed after examining the performance at the given conditions. Divide the total cooling load by nominal BTUH per ton (12 MBh per ton); then round up to the nearest unit size. 172 MBh/12 MBh = 14.33 (approx. 15 tons.)

Step 3

Table 3, p. 24 shows that a WSD180E4 has a gross cooling capacity of 186.2 MBh and 138.9 MBh

sensible capacity at 95°F ambient and 6000 cfm with 80 DB/67 WB air entering the evaporator.

To Find Capacity at Intermediate Conditions

When the design conditions are between two numbers that are in the capacity table, interpolation is required to approximate the capacity.

Note: Extrapolation outside of the table conditions is not recommended.

Step 4

Verify that there will be enough capacity by determining net capacity. In order to select the correct unit which meets the building’s requirements, the fan motor heat must be deducted from the gross cooling capacity. The amount of heat that the fan motor generates is dependent on the effort by the motor CFM and static pressure. To determine the total unit static pressure, add the following:

External Static: 0.50 in.

Standard Filter 1 in: 0.05 in. (from Table 12, p. 29)

Economizer Return Air: 0.04 in. (from Ta b l e 12 , p . 2 9)

Electric Heater Size 18 kW: 0.06 in.

Total Static Pressure: 0.65 in.

Note: The Evaporator Fan Performance Table 6, p. 27 has already accounted for the pressure drop

for standard filters and wet coils.

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Selection Procedure

Therefore, the actual Total Static Pressure is 0.65 - 0.05 = 0.6. With 6000 CFM and 0.60 inches,

Table 6, p. 27 shows 2.17 Bhp.

The note below Table 6, p. 27 gives a formula to calculate Fan Motor Heat:

3.15 x bhp = MBh

3.15 x 2.17 = 6.835 MBh

Now subtracting the fan motor heat from the gross cooling capacity of the unit:

Net Total Cooling Capacity =

186.2 - 6.835 = 179.36 MBh

Net Sensible Cooling Capacity =

138.9 - 6.385 = 132.065 MBh

Step 5

If the performance will not meet the required load of the building, try a selection at the next higher size unit.

Heating Capacity

Step 1

Calculate the building heating load using the Trane calculation form or other standard accepted method.

Step 2

Size the equipment using Tab l e 1 4 , p . 3 1 to match the heating loads at design conditions.

A. Total Heating Load: 100 MBh

B. Outdoor Ambient (Winter) 17 DB

C. Indoor Return Temperature: 70 DB

D . Airflow: 6000 CFM

Use the integrated portion of Table 14, p. 31 for the WSD180E4 to determine capacity at winter design conditions. The mechanical heating portion of the heat pump will provide 85.4 MBh.

Step 3

Because 45 MBh is less than the building’s required heating capacity at winter design conditions, a supplementary heater must be selected.

100.0 - 85.54 = 14.46 MBh

From Table 17, p. 32, at 480 volts, the 18 kW Heater will be adequate to do the job.

18 kW 61 MBh

From Table 17, p. 32 select heater AYDHTRK418A (18 kW 460/60/3).

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