Trane Voyager Commercial User manual

SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing
of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and
training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags,
stickers, and labels that are attached to the equipment.
Voyager™ Commercial
27.5 to 50 Ton 60 Hz
22.9 to 41.7 Ton 50 Hz
CV or VAV Rooftop Air Conditioners
with ReliaTel™ Controls, R-410A Refrigerant
November 2010 RT-SVX34C-EN
Installation, Operation,
Maintenance
Model Numbers
“B” and later design sequence
TC*, TE*, YC*330B, 360B, 420B, 480B, 600B (60 Hz/3 phase)
TC*, TE*, YC*275B, 305B, 350B, 400B, 500B (50 Hz/3 phase)

© 2010 Trane All rights reserved RT-SVX34C-EN
Warnings, Cautions and Notices
Warnings, Cautions and Notices. Note that warnings, cautions and notices appear at
appropriate intervals throughout this manual. Warnings are provided to alert installing contractors
to potential hazards that could result in personal injury or death. Cautions are designed to alert
personnel to hazardous situations that could result in personal injury, while notices indicate a
situation that could result in equipment or property-damage-only accidents.
Your personal safety and the proper operation of this machine depend upon the strict observance
of these precautions.
Important
Environmental Concerns!
Scientific research has shown that certain man-made chemicals can affect the earth’s naturally
occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the
identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine
and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all
refrigerants containing these compounds have the same potential impact to the environment.
Trane advocates the responsible handling of all refrigerants-including industry replacements for
CFCs such as HCFCs and HFCs.
Responsible Refrigerant Practices!
Trane believes that responsible refrigerant practices are important to the environment, our
customers, and the air conditioning industry. All technicians who handle refrigerants must be
certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these
service procedures. In addition, some states or municipalities may have additional requirements
that must also be adhered to for responsible management of refrigerants. Know the applicable
laws and follow them.
Literature Change History
RT-SVN34B-EN (April 2010)
Updated issue of manual: provides specific installation, operation and maintenance instructions
for B and later design sequence on units with R-410A refrigerant.
RT-SVN34B-EN (January 2010)
Updated issue of manual: provides specific installation, operation and maintenance instructions
for B and later design sequence on units with R-410A refrigerant.
RT-SVN34A-EN (March 2009)
Original issue of manual: provides specific installation, operation and maintenance instructions for
A and later design sequence on units with R-410A refrigerant.
ATTENTION: Warnings, Cautions and Notices appear at appropriate sections throughout
this literature. Read these carefully.
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, could
result in minor or moderate injury. It could also be used to alert against unsafe practices.
NOTICE:Indicates a situation that could result in equipment or property-damage-only
accidents.

RT-SVX34C-EN 3
Warnings, Cautions and Notices
Overview of Manual
One copy of the appropriate service literature ships inside the control panel of each unit. The
procedures discussed in this manual should only be performed by qualified, experienced HVAC
technicians.
Note: Do not release refrigerant to the atmosphere! If adding or removing refrigerant is required,
the service technician must comply with all federal, state, and local laws.
This booklet describes the proper installation, startup, operation, and maintenance procedures for
TC_, TE_, and YC_22.9 to 50 Ton CV (Constant Volume) and VAV (Variable Air Volume) applications.
Refer to the table of contents for a listing specific topics. Refer to the "System Troubleshooting"
section at the end of this manual for troubleshooting information.
By carefully reviewing the information within this manual and following the instructions, the risk
of improper operation and/or component damage will be minimized.
It is important that periodic maintenance be performed to help assure trouble free operation. A
maintenance schedule is provided at the end of this manual. Should equipment failure occur,
contact a qualified service organization with qualified, experienced HVAC technicians to properly
diagnose and repair this equipment.
60 Hz units with standard options are certified by Underwriters Laboratory.
WARNING
Personal Protective Equipment (PPE) Required!
Installing/servicing this unit could result in exposure to electrical, mechanical and chemical
hazards.
• Before installing/servicing this unit, technicians MUST put on all Personal Protective
Equipment (PPE) recommended for the work being undertaken. ALWAYS refer to appropriate
MSDS sheets and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals, ALWAYS refer to the appropriate MSDS
sheets and OSHA guidelines for information on allowable personal exposure levels, proper
respiratory protection and handling recommendations.
• If there is a risk of arc or flash, technicians MUST put on all necessary Personal Protective
Equipment (PPE) in accordance with NFPA70E for arc/flash protection PRIOR to servicing the
unit.
Failure to follow recommendations could result in death or serious injury.
WARNING
Proper Field Wiring and Grounding Required!
All field wiring MUST be performed by qualified personnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow
requirements for field wiring installation and grounding as described in NEC and your local/
state electrical codes. Failure to follow codes could result in death or serious injury.

4RT-SVX34C-EN
Table of Contents
Literature Change History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Overview of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
60 Hz Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Model Number Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
50 Hz Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Commonly Used Acronyms/Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 11
About the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Precautionary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
First Aid Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
General Unit Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Downflow Models Only: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
All Units: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Field Installed Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Gas Heat Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Unit Dimensions and Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Recommended Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Roof Curb and Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Horizontal Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Unit Rigging and Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Installation General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Condensate Drain Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
O/A Sensor & Tubing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Units with Statitrac™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Installation Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Disconnect Switch External Handle (Factory Mounted Option) . . . . . . . . . . 29
Main Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Thru-the-Base Electrical (Optional Accessory) . . . . . . . . . . . . . . . . . . . . . 30
Electrical Wire Sizing and Protection Device Equations . . . . . . . . . . . . . . . . 35
Low Voltage Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Control Power Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Field Installed AC Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Field Installed DC Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Remote Panels and Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

RT-SVX34C-EN 5
Constant Volume Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Variable Air Volume Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Installation Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Connecting the Gas Supply Line to the Furnace Gas Train . . . . . . . . . . . 51
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Unit Control Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Microelectronic Control Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Variable Air Volume Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Constant Volume or Variable Air Volume Applications . . . . . . . . . . . . . . 63
Preparing the Unit for Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Electrical Phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Voltage Supply and Voltage Imbalance . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Starting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Test Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Verifying Proper Fan Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Verifying Proper Air Flow (CFM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Exhaust Fan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Economizer Damper Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Economizer (O/A) Dampers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Manual Fresh Air Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Starting the Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Starting 27.5 to 35 Ton Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Starting 40 to 50 Ton Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Scroll Compressor Operational Noises . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Compressor Crankcase Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Charging by Subcooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Measuring Subcooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Gas Heat Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Electric Heat Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Final Unit Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
For Constant Volume Units; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
For Variable Air Volume Units; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Mechanical Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . 112
Dehumidification (Modulating Hot Gas Reheat) Sequence of Operation . 112
Units without an Economizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Economizer operation based on Dry Bulb . . . . . . . . . . . . . . . . . . . . . . . . 113
Economizer operation based on Reference Enthalpy . . . . . . . . . . . . . . 114
Economizer Operation based on Comparative Enthalpy . . . . . . . . . . . . 114

6RT-SVX34C-EN
Gas Heat Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Electric Heat Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Low Pressure Control (LPC) Sequence of Operation (ReliaTel Control) . . 117
High Pressure Control and Temperature Discharge Limit
(ReliaTel Control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Fan Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Monthly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Cooling Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Heating Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Fall Restraint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Refrigerant Evacuation and Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Compressor Replacements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Electrical Phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Precision Suction Restrictor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
System Status/Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Terminal locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Diagnostics (CV units only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Diagnostics (VAV only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Resetting Cooling and Ignition Lockouts . . . . . . . . . . . . . . . . . . . . . . . . . 131
Zone Temperature Sensor (ZSM) Service Indicator . . . . . . . . . . . . . . . . 132
RTRM Zone Sensor Module (ZSM) Test . . . . . . . . . . . . . . . . . . . . . . . . . 132
Test 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Test 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Test 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Test 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Programmable & Digital Zone Sensor Test . . . . . . . . . . . . . . . . . . . . . . 134
ReliaTel Refrigeration Module (RTRM) . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Test 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Test 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
ReliaTel Air Module (RTAM) Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Test 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Test 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Test 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Test 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Test 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Compressor—Blink Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

RT-SVX34C-EN 7
TR-1 and TR-200 VFD Programming Parameters . . . . . . . . . . . . . . . . . . 146
Unit Wiring Diagram Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Warranty and Liability Clause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
COMMERCIAL EQUIPMENT RATED 20 TONS AND LARGER AND RELATED
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

8RT-SVX34C-EN
60 Hz Description
Digit 1, 2 — Unit Function
TC = DX Cooling, No Heat
TE = DX Cooling, Electric Heat
YC = DX Cooling, Natural Gas Heat
Digit 3 — Unit Airflow Design
D = Downflow Configuration
H = Horizontal Configuration
Digit 4, 5, 6 — Nominal Cooling
Capacity
330 = 27½ Tons
360 = 30 Tons
420 = 35 Tons
480 = 40 Tons
600 = 50 Tons
Digit 7 — Major Development
Sequence
B = R-410A Refrigerant
Digit 8 — Power Supply1
E = 208/60/3
F = 230/60/3
4 = 460/60/3
5 = 575/60/3
Digit 9 — Heating Capacity4
0 = No Heat (TC only)
L = Low Heat (YC only)
H = High Heat (YC only)
J = Low Heat-Stainless Steel Gas
Heat Exchanger (YC only)
K = High Heat-Stainless Steel Gas
Heat Exchangers (YC only)
M = Low Heat-Stainless Steel Gas
Heat Exchanger w/
Modulating control
(27.5-35 ton YC only)
P = High Heat-Stainless Steel Gas
Heat Exchangers w/
Modulating control
(27.5-35 ton YC only)
R = Low Heat-Stainless Steel Gas
Heat Exchanger w/
Modulating control
(40-50 ton YC only)
T = High Heat-Stainless Steel Gas
Heat Exchangers w/
Modulating control
(40-50 ton YC only)
Note: When second digit is “E” for
Electric Heat, the following values
apply in the ninth digit.
A = 36 kW (27 kW for 208v)
B = 54 kW (41 kW for 208v)
C = 72 kW
D = 90 kW
E = 108 kW
Digit 10 — Design Sequence
A =First
Digit 11 — Exhaust6
0=None
1 = Barometric Relief (Available
w/ Economizer only)
2 = 100% Power Exhaust Fan
(Available w/ Economizer only)
3 = 50% Power Exhaust Fan
(Available w/ Economizer only)
4 = 100% Fresh Air Tracking Power
Exhaust Fan (Available
w/ Economizer only)
5 = 50% Fresh Air Tracking Power
Exhaust Fan (Available
w/ Economizer only)
6 = 100% Power Exhaust w/
Statitrac™
Digit 12 — Filter
A = 2” Std Eff, Throwaway Filters
B = 2” MERV 8, High Eff, Throwaway
Filters
C = 4” MERV 8, High Eff, Throwaway
Filters
D = 4” MERV 14, High Eff, Throwaway
Filters
Digit 13 — Supply Fan Motor, HP
1=7.5Hp
2=10Hp
3=15Hp
4 = 20 Hp
Digit 14 — Supply Air Fan Drive
Selections3
Digit 15 — Fresh Air Selection
A= NoFreshAir
B = 0-25% Manual Damper
C = 0-100% Economizer, Dry Bulb
Control
D = 0-100% Economizer,
Reference Enthalpy Control
E = 0-100% Economizer,
Differential Enthalpy Control
F = “C” Option and Low Leak
FreshAir Damper
G = “D” Option and Low Leak
Fresh Air Damper
H = “E” Option and Low Leak
Fresh Air Damper
Digit 16 — System Control
1 = Constant Volume
2 = VAV Supply Air Temperature
Control w/o Inlet Guide Vanes
3 = VAV Supply Air Temperature
Control w/Inlet Guide Vanes
4 = VAV Supply Air Temperature
A = 550 RPM H = 500 RPM
B = 600 RPM J = 525 RPM
C = 650 RPM K = 575 RPM
D = 700 RPM L = 625 RPM
E = 750 RPM M = 675 RPM
F = 790 RPM N = 725 RPM
G = 800 RPM
Control w/Variable Frequency
Drive w/o Bypass
5 = VAV Supply Air Temperature
Control w/Variable Frequency
Drive and Bypass
Note: Zone sensors are not included
with option and must be ordered
as a separate accessory.
Miscellaneous Options
Digit 17
A = Service Valves2
Digit 18
B = Through the Base Electrical
Provision
Digit 19
C = Non-Fused Disconnect Switch
with External Handle
Digit 20
D= Factory-Powered15AGFI
Convenience Outlet and
Non-Fused Disconnect Switch
with External Handle
Digit 21
E = Field-Powered 15A GFI
Convenience Outlet
Digit 22
F = Trane Communication
Interface (TCI)
Digit 23
G = Ventilation Override
Digit 24
H = Hinged Service Access
Digit 25
H = Tool-less Condenser Hail Guards
J = Condenser Coil Guards
Digit 26
K = LCI (LonTalk)
B = BACnet Communications
Interface (BCI)
Digit 27
* = Unused Digit
Digit 28
M = Stainless Steel Drain Pans
Digit 29 — Condenser Coil
Options
0 = Standard Efficiency
Condenser Coil
N = Standard Efficiency
Condenser Coil with Black
Epoxy Pre-Coating
Digit 30-31 — Miscellaneous
Options
Model Number Descriptions

RT-SVX34C-EN 9
Model Number Descriptions
P = Discharge Temperature
Sensor
R = Clogged Filter Switch
Digit 32 — Dehumidification
Option
T = Modulating Hot Gas Reheat
Model Number Notes
1. All voltages are across the line
starting only.
2. Option includes Liquid, Discharge,
Suction Valves.
3. Supply air fan drives A thru G are
used with 27½-35 ton units only and
drives H thru N are used with 40 & 50
ton units only.
4. Electric Heat KW ratings are based
upon voltage ratings of 208/240/480/
600 V. For a 240 V heater derated to
208 V, the resulting kW rating
decreases from 36 kW to 27 kW, and
from 54 kW to 41 kW. Voltage
offerings are as follows: (see Tabl e 19,
p. 47 for additional information):
5. The service digit for each model
number contains 32 digits; all 32
digits must be referenced.
6. Ventilation override exhaust mode is
not available for the exhaust fan with
fresh air tracking power exhaust. VOM
is available for the exhaust fan
without fresh air tracking power
exhaust.
Tons
Electric
Heater
Rated
Voltage
KW
27/36 41/54 72 90 108
27½
to 35
208 x x
240 x x
480 x x x x
600 x x x
40
and
50
208 x
240 x
480 x x x x
600 x x x x

10 RT-SVX34C-EN
Model Number Descriptions
50 Hz Description
Digits 1, 2 – Unit Function
TC = DX Cooling, No Heat
TE = DX Cooling, Electric Heat
YC = DX Cooling, Natural Gas Heat
Digit 3 – Unit Airflow Design
D = Downflow Configuration
H = Horizontal Configuration
Digits 4, 5, 6 – Nominal Cooling
Capacity
275 = 22.9 Tons (82 kW)
305 = 25.4 Tons (89 kW)
350 = 29.2 Tons (105 kW)
400 = 33.3 Tons (120 kW)
500 = 41.7 Tons (148 kW)
Digit 7 – Major Development
Sequence
B = R-410A Refrigerant
Digit 8 – Power Supply1
C = 380/50/3
D = 415/50/3
Digit 9 – Heating Capacity4
0 = No Heat (TC only)
L = Low Heat (YC only)
H = High Heat (YC only)
Note: When second digit is “E” for
Electric Heat, the following values
apply in the ninth digit.
380V / 415V
A = 23 kW / 27 kW
B = 34 kW / 40 kW
C = 45 kW / 54 kW
D = 56 kW / 67 kW
E = 68 kW / 81 kW
Digit 10 – Design Sequence
A= First
Digit 11 – Exhaust6
0=None
1 = Barometric Relief (Available
w/ Economizer only)
2 = 100% Power Exhaust Fan
(Available w/ Economizer only)
3 = 50% Power Exhaust Fan
(Available w/ Economizer only)
4 = 100% Fresh Air Tracking Power
Exhaust Fan (Available
w/ Economizer only)
5 = 50% Fresh Air Tracking Power
Exhaust Fan (Available
w/ Economizer only)
6 = 100% Power Exhaust w/
Statitrac™
Digit 12 – Filter
A = 2” (51 MM) Std Eff, Throwaway
Filters
B = 2” (51 MM) MERV 8, High Eff,
Throwaway
Filters
C = 4” (102 MM) MERV 8, High Eff,
Throwaway Filters
D = 4” (102 MM) MERV 14, High Eff,
Throwaway Filters
Digit 13 – Supply Fan Motor, HP
1 = 7.5 Hp (5.6 kW)
2 = 10 Hp (7.5 kW)
3=15Hp(10kW)
4 = 20 Hp (15 kW)
Digit 14 – Supply Air Fan Drive
Selections3
Digit 15 – Fresh Air Selection
A= NoFreshAir
B = 0-25% Manual Damper
C = 0-100% Economizer, Dry Bulb
Control
D = 0-100% Economizer,
Reference Enthalpy Control
E = 0-100% Economizer,
Differential Enthalpy Control
F = “C” Option and Low Leak
Fresh Air Damper
G = “D” Option and Low Leak
Fresh Air Damper
H = “E” Option and Low Leak
Fresh Air Damper
Digit 16 – System Control
1 = Constant Volume
2 = VAV Supply Air Temperature
Control w/o Inlet Guide Vanes
3 = VAV Supply Air Temperature
Control w/Inlet Guide Vanes
Note: Zone sensors are not included
with option and must be ordered
as a separate accessory.
Miscellaneous Options
Digit 17
A = Service Valves2
Digit 18
B = Through the Base Electrical
Provision
Digit 19
C = Non-Fused Disconnect Switch
with External Handle
Digit 20
D = Factory-Powered 15A GFI
Convenience Outlet and
Non-Fused Disconnect Switch
with External Handle
Digit 21
E=Field-Powered15AGFI
Convenience Outlet
Digit 22
A = 458 RPM H = 417 RPM
B = 500 RPM J = 437 RPM
C = 541 RPM K = 479 RPM
D = 583 RPM L = 521 RPM
E = 625 RPM M = 562 RPM
F = 658 RPM N = 604 RPM
G = 664 RPM
F = Trane Communication
Interface (TCI)
Digit 23
G = Ventilation Override
Digit 24
H = Hinged Service Access
Digit 25
H = Tool-less Condenser Hail Guards
J = Condenser Coil Guards
Digit 26
K = LCI (LonTalk)
B = BACnet Communications
Interface (BCI)
Digit 27
* = Unused Digit
Digit 28
M = Stainless Steel Drain Pans
Digit 29 — Condenser Coil
Options
0 = Standard Efficiency
Condenser Coil
N = Standard Efficiency
Condenser Coil with Black
Epoxy Pre-Coating
Digit 30-31 — Miscellaneous
Options
P = Discharge Temperature
Sensor
R = Clogged Filter Switch
Digit 32 — Dehumidification
Option
T = Modulating Hot Gas Reheat
Model Number Notes
1. All voltages are across-the-line
starting only.
2. Option includes Liquid, Discharge,
Suction Valves.
3. Supply air fan drives A thru G are
used with 22.9-29.2 ton (82-105 kW)
units only and drives H thru N are
used with 33.3 and 41.7 ton (120-148
kW) units only.
4. Electric Heat kW ratings are based
upon voltage ratings of 380/415 V.
Heaters A, B, C, D are used with 22.9-
29.2 ton (82-105 kW) units only and
heaters B, C, D, E are used with 33.3-
41.7 ton (120-148 kW) units only.
5. The service digit for each model
number contains 32 digits; all 32
digits must be referenced.
6. Ventilation override exhaust mode is
not available for the exhaust fan with
fresh air tracking power exhaust. VOM
is available for the exhaust fan
without fresh air tracking power
exhaust.

RT-SVX34C-EN 11
General Information
Commonly Used Acronyms/Abbreviations
BAS = Building Automation System
CFM = Cubic Feet per Minute
CLV = Cooling Valve (Reheat only)
COMM = Module Designation for TCI/LCI
CV = Constant Volume
CW = Clockwise
CCW = Counterclockwise
DSP = Direct Space Pressure control
DTS = Discharge Air Sensor
DWU = Daytime Warm-up
E/A = Exhaust Air
ECA = Economizer Actuator
EET = Entering Evaporator Temperature Sensor
F/A = Fresh Air
FFS = Fan Failure Switch
ICS = Integrated Comfort System (See BAS)
IDM = Indoor Fan Motor
IGV = Inlet Guide Vanes
I/O = Input/Output
IOM = Installation, Operation and Maintenance manual (Ships with each unit)
LCI = LonTalk® Communication Interface
LCI-R = LonTalk Communication Interface with ReliaTel
LH = Left Hand
MAS = Mixed Air Sensor
MAT = Mixed Air Temperature
MWU = Morning Warm Up
NSB = Night Setback (programmable ZSM BAYSENS119*)
O/A = Outside Air
OAH = Outside Air Humidity
OAT = Outside Air Temperature
PGA = Power Exhaust Actuator
PSIG = Pounds Per Square Inch Gauge pressure
PHM = Phase monitor
R/A = Return Air
RAH = Return Air Humidity
RAT = Return Air Temperature sensor
RH = Right Hand
RHP = Reheat Pumpout Solenoid
RHV = Reheat Valve
RLP = Reheat Low Pressure Cutout
RPM = Revolutions Per Minute
RTAM = ReliaTel Airhandler Module
RTDM = ReliaTel Dehumidification Module
RTVM = ReliaTel Ventilation Module

12 RT-SVX34C-EN
General Information
About the Unit
Overall unit dimensional data is illustrated in Figure 1, p. 17 to Figure 9, p. 22. Each package rooftop
unit ships fully assembled and charged with the proper refrigerant quantity from the factory. They
are controlled by a microelectronic unit control processor. Several solid state modules are grouped
to form the "Control System". The number of modules within any given control system will be
dependent upon the options and accessories ordered with the unit. Acronyms are used extensively
throughout this manual when referring to the "Control System" (see acronyms/abbreviations
previous page).
Basic unit components include:
• Scroll compressors
• One (1) Intertwined Evaporator Coil
• One (1) Intertwined Condenser Coil
• One (1) Supply Fan
• Three (3) to Four (4) Condenser Fans
• Filters (type is dependent on option selection)
Precautionary Measures
WARNING
Fiberglass Wool!
Product contains fiberglass wool. Disturbing the insulation in this product during installation,
maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic
fibers known to the state of California to cause cancer through inhalation. Glass wool fibers may
also cause respiratory, skin or eye irritation.
- Avoid breathing fiberglass dust.
- Use a NIOSH approved dust/mist respirator.
- Avoid contact with the skin or eyes. Wear long-sleeved, loose-fitting clothing, gloves, and eye
protection.
- Wash clothes separately from other clothing: rinse washer thoroughly.
- Operations such as sawing, blowing, tear-out, and spraying may generate fiber concentrations
requiring additional respiratory protection. Use the appropriate NIOSH approved respiration in
these situations.
RTOM = ReliaTel Options Module
RTRM = ReliaTel Refrigeration Module
S/A = Supply Air
SPC = Space Pressure Calibration Solenoid
SPP = Space Pressure Transducer
SPT = Static Pressure Transducer
TCI = Trane Communication Interface
TCO = Temperature Cutout
TDL = Temperature Discharge Limit
VAV = Variable Air Volume
VFD = Variable Frequency Drive
VHR = Ventilation Heat Relay (VAV box relay)
W.C . = Wat er C ol umn
XFSP = Exhaust Fan Setpoint
ZSM = Sensor, Zone Sensor, Zone Sensor Module, Zone Panel

RT-SVX34C-EN 13
General Information
First Aid Measures
Eye Contact - Flush eyes with water to remove dust. If symptoms persist, seek medical attention.
Skin Contact - Wash affected areas gently with soap and warm water after handling.
An optional roof curb, specifically designed for the Voyager commercial rooftop units is available
from Trane. The roof curb kit must be field assembled and installed according to the latest edition
of the curb installation guide.
Unit Inspection
As soon as the unit arrives at the job site:
• Verify that the nameplate data corresponds to the sales order and bill of lading (including
electrical data).
• Visually inspect the exterior of the unit, including the roof, for physical signs of shipping
damage.
• Check for material shortages. Figure 11 on page 23 illustrates where "ship with" items are
placed inside the unit.
If the job site inspection reveals damage or material shortages, file a claim with the carrier
immediately. Specify the type and extent of the damage on the "bill of lading" before signing. Do
not install a damaged unit without the Appropriate Trane sales representative's approval!
• Visually check the internal components for shipping damage as soon as possible after delivery
and before it is stored. Do not walk on the sheet metal base pans.
WARNING
No Step Surface!
Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the supporting
metal to collapse. Failure of the drain pan could result in death or serious injury.
Bridging between the unit's main supports may consist of multiple 2 by 12 boards or sheet metal
grating.
• If concealed damage is discovered, notify the carrier's terminal office immediately by phone
and by mail. Concealed damage must be reported within 15 days.
• Request an immediate joint inspection of the damage by the carrier and the consignee. Do not
remove the damaged material from the receiving location. Take photos of the damage, if
possible. The owner must provide reasonable evidence that the damage did not occur after
delivery.
Storage
Take precautions to prevent condensate formation inside the unit electrical components and
motors when:
a. The unit is stored before it is installed; or,
b. 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
startup.
Do not use the unit heater as temporary heat without completing the startup procedures detailed
under "Unit startup".
Trane will not assume responsibility for equipment damage resulting from accumulation of
condensate on the unit electrical components.

14 RT-SVX34C-EN
Pre-Installation
The checklist listed below is a summary of the steps required to successfully install a Voyager
Commercial rooftop unit. This checklist is intended to acquaint the installing personnel with what
is required in the installation process. It does not replace the detailed instructions called out in the
applicable sections of this manual.
General Unit Requirements
Downflow Models Only:
• An optional roof curb, specifically designed for the Voyager commercial rooftop units is
available from Trane. The roof curb kit must be field assembled and installed according to the
latest edition of the curb installation guide.
• Assemble and install the roof curb, including necessary gaskets. Make sure the curb is level.
• Install and secure the ductwork to the curb.
All Units:
• Check unit for shipping damage and material shortage. (Refer to "Unit inspection" section).
• Rigging the unit. Refer to Figure 12, p. 24.
• Placing the unit on curb; check for levelness. See “Roof Curb and Ductwork” on page 16.
• Ensure that the unit-to-curb seal is tight and without buckles or cracks.
• Install an appropriate drain line to the evaporator condensate drain connections, as required.
Refer to Figure 14, p. 29.
• Service Valve Option; See “Starting the Compressor” on page 98.
• Return/Fresh-air damper adjustment. Refer to “Economizer Damper Adjustment” on page 94.
• Exhaust Fan Damper Stop Adjustment. Refer to Exhaust Damper Adjustment figures,
beginning with Figure 46, p. 103.
Electrical Requirements
(See Figure 18, “Typical Field Power Wiring,” on page 34.)
• Verify that the electrical power supply characteristics comply with the unit nameplate
specifications.
• Inspect all control panel components; tighten any loose connections.
• Connect properly sized and protected power supply wiring to a field supplied/installed
disconnect and unit power terminal block HTB1, or to the optional unit-mounted disconnect
switch.
WARNING
Proper Field Wiring and Grounding Required!
All field wiring MUST be performed by qualified personnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow
requirements for field wiring installation and grounding as described in NEC and your local/
state electrical codes. Failure to follow codes could result in death or serious injury.
• Properly ground the unit.

RT-SVX34C-EN 15
Pre-Installation
Field Installed Control Wiring
(Figure 19, p. 41 and Figure 20, p. 42.)
Important: All field-installed wiring must comply with NEC and applicable local codes.
• Complete the field wiring connections for the constant volume controls as applicable. Refer to
the “Low Voltage Wiring” on page 39 for guidelines.
• Complete the field wiring connections for the variable air volume controls as applicable. Refer
to the “Low Voltage Wiring” on page 39 for guidelines.
Gas Heat Requirements
(See “Installation Piping” on page 53.)
• Gas supply line properly sized and connected to the unit gas train.
• All gas piping joints properly sealed.
• Drip leg Installed in the gas piping near the unit.
• Gas piping leak checked with a soap solution. If piping connections to the unit are complete,
do not pressurize piping in excess of 0.50 psig or 14 inches w.c. to prevent component failure.
• Main supply gas pressure adequate.
• Flue Tubes clear of any obstructions.

16 RT-SVX34C-EN
Unit Dimensions and Weights
Recommended Clearances
Adequate clearance around and above each Voyager Commercial unit is required to ensure proper
operation and to allow sufficient access for servicing.
If the unit installation is higher than the typical curb elevation, a field constructed catwalk around
the unit is recommended to provide safe, easy access for maintenance and servicing. Table 1, p. 23
lists the recommended clearances for single and multiple unit installation. These clearances are
necessary to assure adequate serviceability, cataloged capacities, and peak operating efficiency.
If the clearances available on the job site appear to be inadequate, review them with your Trane
sales representative.
Roof Curb and Ductwork
The curbs for the 27.5 to 50 Ton commercial rooftop units enclose the entire unit base area. They
are referred to as "full perimeter" type curbs.
Step-by-step instructions for the curb assembly and installation with curb dimensions and curb
configuration for "A", "B", and "C" cabinets ship with each Trane accessory roof curb kit. (See the
latest edition of the curb installation guide) Follow the instructions carefully to assure proper fit
when the unit is set into place.
The S/A and R/A ductwork adjoining the roof curb must be fabricated and installed by the installing
contractor before the unit is set into place. Trane curbs include flanges around the openings to
accommodate duct attachment.
Ductwork installation recommendations are included in the instruction booklet that ships with each
Trane accessory roof curb kit.
Note: For sound consideration, cut only the holes in the roof deck for the supply and return duct
penetration. Do Not remove the roof decking from the inside perimeter of the curb.
If a Trane curb accessory kit is not used:
a. The ductwork can be attached directly to the S/A and R/A openings. Be sure to use a flexible
duct connector at the unit.
b. For "built-up" curbs supplied by others, gaskets must be installed around the curb perimeter
flange, S/A opening, and R/A openings.
c. Insulation must be installed on the bottom of the condenser section of the unit.
Horizontal Ductwork
When attaching the ductwork to a horizontal unit, provide a water tight flexible connector at the unit
to prevent noise transmission from the unit into the ductwork. Refer to figures beginning on page
17 for the S/A and R/A opening dimensions.
All outdoor ductwork between the unit and the structure should be weather proofed after
installation is completed.
If optional power exhaust is selected, an access door must be field-installed on the horizontal return
ductwork to provide access to exhaust fan motors.

RT-SVX34C-EN 17
Unit Dimensions and Weights
Figure 1. 60 Hz 27½-35, 50 Hz 23-29 Tons (TC, TE, YC Low Heat)
Figure 2. Rear view showing duct openings for horizontal units
1 1/4
(32)
3 1/4
(81)

18 RT-SVX34C-EN
Unit Dimensions and Weights
Note: Dimensions in ( ) are mm, 1”= 25.4 mm.
Figure 3. 60 Hz 27½-35, 50 Hz 23-29 Tons (TC, TE, YC Low Heat)
Figure 4. 60 Hz 27½-35, 50 Hz 23-29 Tons (YC High Heat)
NOTES:
1. SEE DETAIL HOOD DRAWING FOR HORIZONTAL /
DOWNFLOW UNITS FOR ADDITIONAL DIMENSION
AND LOCATION.
179 3/4"
4565.65mm
42"
1066.8mm
83 13/16"
2128.8mm
90 1/16"
2287.5mm
180 5/16"
4579.9mm
90 3/8"
2295.5mm
5 3/8"
136.5mm
7 9/16"
192.1mm
3.25 [82.55mm] TO TOP OF FAN GRILLE
70 7/16"
1789.1mm
40 3/16"
1020.7mm
6 7/8"
174.6mm
1 1/4" [31.7mm]
FEMALE PVC PIPE
3/4" [19.0mm] NPT
GAS INLET
SEE NOTE 2
CUSTOMER
CONNECTION POINT
191

RT-SVX34C-EN 19
Unit Dimensions and Weights
Note: Dimensions in ( ) are mm, 1”= 25.4 mm.
Figure 5. Duct openings, 60 Hz 27½-35, 50 Hz 23-29 Tons (YC High Heat)
Figure 6. 60 Hz 27½-35, 50 Hz 23-29 Tons (YC High Heat)
1 1/4
(32)
3 1/4
(81)
5270.5mm
207 1/2"
42"
5 3/8"
83 13/16"
2128.8mm
7 9/16"
208 1/16"
5284.7mm
90 5/8"
2301.8mm
90 1/16"
70 7/16"
40 3/16"
6 15/16"
PVC PIPE FEMALE
1" [25.4MM] NPT
GAS INLET
NOTES:
1. SEE ROOFCURB DRAWING FOR DETAILS
ON FIELD DUCT FITUP AND CONNECTIONS
2. SEE DETAIL HOOD DRAWING FOR HORIZONTAL /
DOWNFLOW UNITS FOR ADDITIONAL DIMENSION
AND LOCATION.
SEE NOTE 2
CUSTOMER
CONNECTION POINT
1066.8mm
2287.5mm
136.5m
192.1m
3.25 [82.55mm] TO
TOP OF FAN GRILLE
1789.1mm
1020.7mm
174.6mm
1 1/4" [31.7mm]

20 RT-SVX34C-EN
Unit Dimensions and Weights
Figure 7. 60 Hz 40-50, 50 Hz 33-42 Tons (TC, TE, YC Low and High Heat)
Figure 8. Duct openings, 60 Hz 40-50, 50 Hz 33-42 Tons
(TC, TE, YC Low and High Heat)
1 1/4
(32)
3 1/4
(81)