Series R®Air-Cooled
Helical Rotary Liquid Chillers
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.
January 2015
RTAC-SVX01M-EN
Introduction
Read this manual thoroughlybefore operating or servicing
this unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required.Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.
The three types of advisories are defined as follows:
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. 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.
WARNING
CAUTIONs
NOTICE
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
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.
Indicates a situationthat could resultin
equipment or property-damage only
accidents.
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.
Important 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.
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 PPE required for the work being
undertaken (Examples; cut resistant gloves/sleeves,
butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
ALWAYS refer to appropriate Material Safety Data
Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA
guidelines for proper PPE.
•When working with or around hazardous chemicals,
ALWAYS refer to the appropriate MSDS/SDS and
OSHA/GHS (Global Harmonized System of
Classification and Labelling of Chemicals) guidelines
for information on allowable personal exposure
levels, proper respiratory protection and handling
instructions.
•If there is a risk of energized electrical contact, arc, or
flash, technicians MUST put on all PPE in accordance
with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit. NEVER PERFORM ANY
SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND
ARC FLASH CLOTHING. ENSURE ELECTRICAL
METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.
Failure to follow instructions could result in death or
serious injury.
Compliance with the following is required to preserve the
factory warranty:
All Unit Installations
Startup MUST be performed by Trane, or an authorized
agent of Trane, to VALIDATE this WARRANTY. Contractor
must provide a two-week startup notification to Trane (or
an agent of Trane specifically authorized to perform
startup).
Copyright
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
Introduction
All trademarks referenced in this document are the
trademarks of their respective owners.
Revision History
RTAC-SVX01M-EN (30 Jan 2015)
•Correction to Model Number digit 5-7.
•Addition of seismic isolator option.
•Removal of duplicated information found in other
locations
•Removal of detailed communication system
information
(nameplate, catalog, submittal).
found in controls documents.
RTAC-SVX01M-EN3
Table of Contents
Introduction ............................. 2
Table of Contents ........................ 4
Model Number Description ............... 6
Outdoor Unit Nameplate ............... 6
Compressor Nameplate ................ 6
Unit Model Number .................... 7
Compressor Model Number ............ 8
Compressor Serial Number ............. 8
General Data ............................ 9
Unit Description ....................... 9
Accessory/Option Information ........... 9
Isolator Shipping Location ............. 9
Pre-installation ......................... 20
Unit Inspection ..................... 20
Inspection Checklist ................. 20
Storage ........................... 20
Installation Responsibilities ........... 20
General ............................. 20
Dimensions and Weights ................ 21
Dimensions .......................... 21
Clearances ........................... 21
Weights ............................. 24
Non-Seismically Rated Units .......... 24
Seismically Rated Unit Weights ....... 26
Remote Evaporator Unit Weights ...... 27
Installation - Mechanical ................ 28
Location Requirements ................ 28
Noise Considerations ................ 28
Foundation ........................ 28
Clearances ......................... 28
Rigging .............................. 28
Lifting Procedure ................... 28
Isolation and Sound Emission .......... 34
Mounting and Leveling ................ 34
Unit Isolation ........................ 34
Elastomeric Isolators
(Optional for units without seismic rating) 34
System Configuration and Interconnecting
Refrigerant Piping
.....................56
Line Sizing ............................60
Liquid Line Sizing Steps ..............60
Suction Line Sizing Steps .............61
Suction Accumulator Sizing ...........61
Piping Installation Procedures ...........62
Refrigerant Sensors ....................62
Refrigerant Pressure Relief Valve Venting .62
Leak Test and Evacuation ...............63
Refrigerant and Additional Oil Charge ....64
Refrigerant Charge Determination ......64
Oil Charge Determination .............64
Installation - Electrical ....................65
General Recommendations .............65
Installer-Supplied Components ..........66
Power Supply Wiring .................66
Control Power Supply ..................67
Heater Power Supply and Convenience
Outlet (Packaged Units Only) ..........67
Interconnecting Wiring .................68
Chilled Water Pump Control ...........68
Alarm and Status Relay Outputs
4RTAC-SVX01M-EN
Table of Contents
(Programmable Relays) ............... 68
Relay Assignments Using TechView .... 69
Low Voltage Wiring ................... 69
Emergency Stop .................... 69
External Auto/Stop .................. 70
External Circuit Lockout – Circuit #1 and #2
70
Ice Building Option .................. 70
External Chilled Water Setpoint
(ECWS) Option ..................... 70
External Current Limit Setpoint
(ECLS) Option ...................... 71
Chilled Water Reset (CWR) ........... 71
Communications Interface Options ..... 72
Tracer Communications Interface
Option ............................ 72
LonTalk™ Interface (LCI-C) ........... 72
Operating Principles .................... 73
Refrigeration Cycle ................... 73
Refrigerant R-134a .................... 73
Compressor .......................... 73
Condenser and Subcooler ............. 74
Expansion Valve ...................... 74
Evaporator ........................... 74
Oil System ........................... 74
Controls Interface ....................... 75
Overview ............................ 75
Controls Interface ..................... 75
DynaView Display .................... 75
Key Functions ...................... 75
Display Screens .................... 76
Modes Screen ...................... 77
Chiller Screen ...................... 81
Compressor Screen ................. 81
Refrigerant Screen .................. 81
Setpoint Screen .................... 82
Diagnostic Screen .................. 83
Power-Up ......................... 83
Display Formats ...................... 83
Units ............................. 83
Languages ......................... 83
TechView .............................83
Unit View ..........................85
Compressor Service View .............85
Status View .........................85
Setpoint View .......................85
Diagnostics View ....................86
Configuration View ..................86
Software View ......................89
Binding View .......................89
Replacing or Adding Devices ..........89
Pre-Start Checkout .......................92
Start-Up and Shutdown ..................93
Unit Start-Up .........................93
Temporary Shutdown and Restart .......94
Extended Shutdown Procedure ..........94
Seasonal Unit Start-Up Procedure .......95
System Restart After Extended Shutdown 95
Sequence of Operation .................96
Maintenance ...........................100
Weekly ..............................100
Monthly .............................100
Annual ..............................100
Refrigerant and Oil Charge Management 100
Lubrication System ...................101
Oil Sump Level Check ...............101
Condenser Maintenance ...............101
Condenser Coil Cleaning .............101
Travel Restraint ......................102
Diagnostics ............................103
Legend to Diagnostics Table ...........103
Starter Diagnostics ...................103
Main Processor Diagnostics ............108
Communication Diagnostics ...........116
Main Processor Boot Messages
and Diagnostics
......................121
Unit Wiring ............................122
Log and Check Sheet ...................124
RTAC-SVX01M-EN5
Model Number Description
Nameplates
The RTAC outdoor unit nameplates are applied to the
exterior of the Control Panel. A compressor nameplate is
located on each compressor.When the unit arrives, if unit
is not covered with atarp, compare all nameplate datawith
ordering, submittal, and shipping information.
Outdoor Unit Nameplate
See Figure 1, p. 6 for a typical unit nameplate.Theoutdoor
unit nameplate provides the following information:
•Unit model and size description.
•Unit serial number.
•Identifies unit electrical requirements.
•Lists correct operating charges of R-134a and
refrigerant oil (Trane OIL00048).
•Lists unit test pressures.
•Identifies installation, operation and maintenance and
service data literature (Pueblo).
•Lists drawing numbers for unit wiring diagrams
(Pueblo).
Model Number Coding System
The model numbers for the unit and the compressor are
composed of numbers and letters that represent features
of the equipment.Shown in the followingtable is a sample
of typical unit model number and the coding system for
each.
Each position, or group of positions, in the model number
is used to represent a feature. For example, in the first
table, position 08 of the unit model number, UnitVoltage,
contains the number“4”.A 4 in this position means that the
unit voltage is 460/60/3.
Unit Model Number. An example of a typical unit
model number (M/N) is:
RTAC 350A UA0N NAFN N1NX 1TEN NN0N N01N
Model number digits are selected and assigned in
accordance with the definitions as listed in “Unit Model
C =230/60/3
J= 380/60/3
D =400/50/3
4= 460/60/3
5= 575/60/3
Digit 9 - Manufacturing
Location
U = Water Chiller Business Unit,
Pueblo, CO USA
Digits 10, 11 - Design Sequence
XX =Factory Input
Digit 12 - Unit Basic
Configuration
N =Standard efficiency/performance
H =High efficiency/performance
A =Extra efficiency/performance
Digit 13 - Agency Listing
N =No agency listing
U =C/UL listing
S =Seismic rated - IBC and OSHPD
R =C/UL listed and seismic rated
Digit 14 - Pressure Vessel Code
A = ASME pressure vessel code
C =Canadian code
D =Australian code
L= Chinese code
Digit 15 - Evaporator
Application
F= Standard (40-60 F) leaving temp
G =Low (Less than 40 F) leaving
temp
R =Remote (40-60 F) leaving temp
Digit 16 - Evaporator
Configuration
N =2 pass, 0.75” insulation
P =3 pass, 0.75” insulation
Q =2 pass, 1.25” insulation
R =3 pass, 1.25” insulation
Digit 17 - Condenser
Application
N =Standard ambient (25-115°F)
H =High ambient (25-125°F)
L= Low ambient (0-115°F)
W = Wide ambient (0-125°F)
Digit 18 - Condenser Fin
Material
1= Standard aluminum slit fins
2= Copper fins
4= CompleteCoat™ epoxy coated
fins
Digit 19 - Condenser Fan/Motor
Configuration
T= STD fans with TEAO motors
W = Low noise fans
Digit 20 - Compressor Motor
Starter Type
X =Across-the-line
Y= Wye-delta closed transition
Digit 21 - Incoming Power Line
Connection
1= Single point power connection
2= Dual point power connection
Digit 22 - Power Line
Connection Type
T= Terminal block connection
D =Non-fused disconnect switch(es)
C =Circuit breaker(s)
Digit 23 - Unit Operator
Interface
D =DynaView operator interface
Digit 24 - Remote Operator
Interface
N =No remote interface
C = Tracer™ Comm 3 interface
B =BACnet®interface
L= LonTalk®compatible (LCI-C)
interface
Digit 25 - Control Input
Accessories/Options
N =No remote inputs
R =Ext. evaporator leaving water
setpoint
C =Ext. current limit setpoint
B =Ext. leaving water and current
limit setpoint
Digit 26 - Control Output
Accessories/Options
N =No output options
A = Alarm relay outputs
C =Ice making I/O
D =Alarm relay outputs and ice
making I/O
Digit 27 - Electrical Protection
Options
0= No short circuit rating
5= Default short circuit rating
6= High amp short circuit rating
Digit 28 - Flow Switch
T= Factory installed flow switch -
water
U =Factory installed flow switch
glycol
Digit 29 - Control Panel
Accessories
N =No convenience outlet
A =15A 115V convenience outlet
(60Hz)
Digit 30 - Service Valves
1= With suction service valves
Digit 31 - Compressor Sound
Attenuation Option
0= No compressor sound
attenuation
1= Factory installed compressor
sound attenuation
Digit 32 - Appearance Options
N =No appearance options
A = Architectural louvered panels
C =Half louvers
Digit 33 - Installation
Accessories
N =No installation accessories
F= Flange kit for water connections
R =Neoprene in shear unit isolators
G =Neoprene isolators and flange kit
E =Seismic elastomeric isolation
pads
S =Seismic spring isolators
RTAC-SVX01M-EN7
Model Number Descriptions
Digit 34 - FactoryTesting
Options
0= Standard functional test
C =Customer-witnessed
performance
test with report
C =Customer-witnessed
performance
test plus Rapid Restart test
E =Non-witnessed performance test
with report
Digit 35 — Control, Label &
Literature
C =Spanish
E =English
F= French
Digit 36 — Special Order
X =Standard unit configuration
S =Unit has special order feature
The 140 - 500 ton Model RTAC unitsare helical-rotary type,
air-cooled liquid chillers designed for installation
outdoors.The compressor circuits are completely
assembled, hermetic packages that are factory-piped,
wired, leak-tested, dehydrated, and tested for proper
control operation before shipment.
Chilled water inlet and outlet openings are covered for
shipment. Each compressor has a separate compressor
motor starter.The RTAC series featuresTrane’s exclusive
Adaptive Control ™ logic, which monitors the control
variables that govern the operation of the chiller unit.
Adaptive Control logic can adjust capacity variables to
avoid chiller shutdown when necessary, and keep
producing chilled water. The units feature two
independent refrigerant circuits. Compressor unloaders
are solenoid actuated and oil pressure operated. Each
refrigerant circuit is provided with filter, sight glass,
electronic expansion valve, and charging valves.The
shell-and-tube type evaporator is manufactured in
accordance with ASME standards or other international
codes. Each evaporator is fully insulated and is equipped
with water drain and vent connections. Packaged units
have heat tape protection to - 20°F (-28.9°C) as standard.
As an option, a convenience outlet can be supplied.
Note: Packaged units are factory charged with refrigerant
and oil.
Figure 2.Typical RTAC packaged unit and components
Accessory/Option Information
Check all the accessories and loose parts which are
shipped with the unit against the shipping list. Included in
these items will be water vessel drain plugs, rigging and
electrical diagrams, and service literature, which are
placed inside the control panel and/or starter panel for
shipment.
Isolator Shipping Location
If optional neopreneisolators (model number digit 33) are
ordered with unit, they are shipped mounted on the unit.
See Figure 3 and Figure 4.
Figure 3.Isolator shipping locations 140-250T units
Neoprene Isolator Shipping Location
Figure 4.Isolator shipping locations 275-500T units
Neoprene Isolator Shipping Location
RTAC-SVX01M-EN9
General Data
Table 1.General Data - 60 hz units - standard efficiency - IP
Size140 155 170 185 200 225250275300350400450500
Compressor
Quantity #2222222333444
Nominal size
@60Hz
(tons) 70/70 85/70 85/85
100/
85
100/
100
120/
100
120/
120
Evaporator
Water storage (gal)29323436403943626772838691
2 pass arrangement
Min flow (gpm)193214202217241217241309339375404422461
Max flow (gpm)709785741796883796883113412431374148315481690
Water conn (NPS-in)4466666888888
3 pass arrangement
Min flow (gpm)129143135145161145161206226250270282307
Max flow (gpm)47352349453158953158975682991698910321127
Min ambient-std(°C)-3.9-3.9-3.9-3.9-3.9-3.9-3.9-3.9-3.9-3.9-3.9-3.9-3.9
Min ambient-low(°C)-17.8-17.8 -17.8 -17.8-17.8 -17.8-17.8 -17.8 -17.8-17.8-17.8-17.8-17.8
1. Data containing information on two circuits is shown as follows: ckt 1/ ckt 2.
2. Minimum start-up/operating ambient is based on a 5 mph wind across the condenser.
3. RTAC units must only operate with refrigerant R-134a and Trane Oil 00048.
Screw
100/
70-70 /
100
Flooded
Fin and tube
6400/
6400
Direct drive propeller
HFC-134a
102/
102
85-85 /
100
4572/
2743
166/91 188/91
8-8/78-8/78-8/
100
5486/
3657
100-100/
100
6400/
3657
209/91 188/
7
85-85 /
85-85
5486/
5486
188
8-8/
8-8
100-100/
85-85
6400/
5486
209/
188
9-9/
9-9
100-100/
100-100
6400/
6400
209/
209
9-9
9-9
RTAC-SVX01M-EN19
Pre-installation
Unit Inspection
When unit is delivered, verify it is the correct unit and is
properly equipped.
If unit is covered with optional tarp, confirm unit was
ordered with a tarp. Inspect tarp for any visible damage.
If unit does not have optional tarp, compare information
on unit nameplate with ordering and submittal
information. Inspect all exterior components for visible
damage.
Report any apparent damage or material shortage to
carrier and make a “unit damage” notation on carrier’s
delivery receipt. Specify extent and type of damage found
and notifyTrane Sales Office. Do not proceed with
installation of a damaged unit without sales office
approval.
Inspection Checklist
To protect against loss due to damage in transit, complete
this checklist upon receipt of unit.
•Inspect the individual pieces of the shipment before
accepting the unit. Check for obvious damage to the
unit or packing material.
•Inspect the unit for concealed damage as soon as
possible after delivery and before it is stored.
Concealed damage must be reported within 15 days.
•If concealed damage is discovered, stop unpacking the
shipment. Do not remove 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.
•Notify the carrier’s terminal of the damage
immediately, by phone and by mail. Request an
immediate, joint inspection of the damage with the
carrier and the consignee.
NotifyTrane sales representative and arrange for repair.
Do not repairunit until damage is inspected bythe carrier’s
representative.
•Install unit on a flat foundation, level (within 1/4” [6
mm] across the length and width of the unit), and
strong enough to support unit loading.
•Install unit per the instructions contained in the
Installation-Mechanical and Installation-Electrical
sections of this manual.
•Install any optional sensors and make electrical
connections at the CH530.
•Where specified, provide and install valves in water
piping upstream and downstream of evaporator water
connections to isolate evaporator for maintenance,
and to balance/trim system.
•Furnish and install pressure gauges in inlet and outlet
piping of the evaporator.
•Furnish and install a drain valve to the bottom of the
evaporator waterbox.
•Supply and install a vent cock to the top of the
evaporator waterbox.
•Furnish and install strainers ahead of all pumps and
automatic modulating valves, and at inlet of
evaporator.
•Provide and install field wiring.
•Install heat tapeand insulate thechilledwater lines and
any other portions of the system, as required, to
prevent sweating under normal operating conditions
or freezing during low ambient temperature
conditions.
•Install evaporator drain plug.The plug ships in unit
control panel.
•Start unit under supervision of a qualified service
technician.
General
Report any damage incurred during handling or
installation to theTrane sales office immediately.
Storage
Extended storage of outdoor unit prior to installation
requires these precautionary measures:
•Store the outdoor unit in a secure area.
•At least every three months (quarterly), check the
pressure in the refrigerant circuits to verify that the
refrigerant charge is intact. If it is not, contact a
qualified service organization and the appropriate
Trane sales office.
•Close the discharge and liquid line isolation valves.
Installation Responsibilities
Generally, the contractor must do the following when
installing an RTAC unit:
20RTAC-SVX01M-EN
Dimensions and Weights
Dimensions
See unit submittals for specificunit dimensions and water
connection locations.
Clearances
Provideenough space aroundthe outdoor unit to allowthe
installation and maintenance personnel unrestricted
Figure 5. Recommended unit clearance — 15 foot bases
access to allservice points. Refer to submittal drawings for
the unit dimensions. A minimum of 4 feet (1.2 m) is
recommended for compressor service. Provide sufficient
clearance for the opening of control panel doors. See
Figure 5, p. 21 through Figure 9, p. 23 for minimum
clearances. In all cases, local codes which require
additional clearances will take precedence over these
recommendations.
Figure 6. Recommended unit clearances 18-21 foot bases
RTAC-SVX01M-EN21
Dimensions and Weights
Figure 7. Recommended unit clearances 30-45 foot bases
Tube Removal
Clearance Area
(Non DynaView
Control Panel End)
22RTAC-SVX01M-EN
Figure 9. Recommended evaporator clearance
148”
(3760 mm)
Unobstructed flow of condenser air is essential to
maintain chiller capacity and operating efficiency. When
determining unit placement, give careful consideration to
assuring a sufficient flow of air across the condenser heat
transfer surface.Two detrimental conditions are possible
and must be avoided if optimum performance is to be
achieved: warm air recirculation and coil starvation.
Warm air recirculationoccurs when discharge air from the
condenser fans is recycled back to the condenser coilinlet.
Coil starvation occurs when free airflow to (or from) the
condenser is restricted.
Both warm air recirculation and coil starvation cause
reduction in unit efficiency and capacity due to the
increased head pressures.
Debris, trash, supplies etc. should not be allowed to
accumulate in the vicinity ofthe unit. Supply air movement
may draw debris into the condenser coil, blocking spaces
between coil fins and causing coil starvation. Special
consideration should be given to low ambient units.
Condenser coils and fan discharge must be kept free of
snow or other obstructions to permit adequate airflow for
satisfactory unit operation.
In situations where equipment must be installed with less
clearance than recommended, such as frequently occurs
in retrofit and rooftop applications, restricted airflow is
common.The Main Processor will direct the unit to make
as much chilled water aspossible given theactual installed
conditions. Consult yourTrane sales engineer for more
details.
Note: If the outdoor unit configuration requires a
variance to the clearance dimensions, contact your
Trane Sales Office Representative. Also refer to
Trane Engineering Bulletins for application
information on RTAC chillers.
Dimensions and Weights
RTAC-SVX01M-EN23
Dimensions and Weights
Weights
Non-Seismically Rated Units
Table 11. Weight - packaged units - 60 Hz - aluminum or CompleteCoat coils
1. Operating weight includes refrigerant and water.
2. Shipping weight includes nitrogen holding charge.
3. All weights +/- 3%.
Shipping
Weight (lb)
24861128273012382528114728051272
25251145279012662556115928501293
25281147280512722600117929201325
25561159285012932797126931141413
26001179292013252846129131921448
2797126931141413----
2846129131921448----
Standard EfficiencyHigh Efficiency
Shipping
Weight (kg)
Operating
Weight (lb)
Operating
Weight (kg)
Shipping
Weight (lb)
Shipping
Weight (kg)
Operating
Weight (lb)
Operating
Weight (kg)
RTAC-SVX01M-EN27
Installation - Mechanical
Location Requirements
Noise Considerations
Locate outdoor unit away from sound sensitive areas. If
required, install rubber vibration isolators in all water
piping and use flexible electrical conduit. Consult an
acoustical engineer for critical applications. Also refer to
A base or foundationis notrequired if unit location islevel
and strong enough to support unit’s operating weight as
listed in “General Data,” p. 9, Table 1, p. 10 through
Table 10, p. 19. Provide rigid, non-warping mounting pads
or concrete foundation of sufficient strength and mass to
support unit operating weight (including piping, and full
operating charges of refrigerant, oil and water). Once in
place, outdoor unit must be level within 1/ 4" (6 mm) over
its length and width.
Trane Company is not responsible for equipment
problems resulting from an improperly designed or
constructed foundation.
Note: To allow for cleaning under the condensing coil, it
is recommended that an opening be left between
the unit base and the concrete pad.
Clearances
Provideenough space aroundthe outdoor unit to allowthe
installation and maintenance personnel unrestricted
access to allservice points. Referto submittal drawings for
the unit dimensions. A minimum of 4 feet (1.2 m) is
recommended for compressor service. Provide sufficient
clearance for the opening of control panel doors. See
Figure 5, p. 21 through Figure 9, p. 23 in “Dimensions and
Weights,” p. 21 for minimum clearances. In all cases, local
codes which require additional clearances will take
precedence over these recommendations.
Rigging
Lifting Procedure
WARNING
Heavy Objects!
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift. Other lifting arrangements could cause
equipment or property damage. Failure to follow
instructions above or properly lift unit could result in
unit dropping and possibly crushing operator/
technician which could result in death or serious injury.
WARNING
Improper Unit Lift!
Test lift unit approximately 24 inches to verify proper
center of gravity lift point. To avoid dropping of unit,
reposition lifting point if unit is not level. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or serious injury and possible
equipment or property-only damage.
WARNING
Heavy Objects!
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift. Other lifting arrangements could cause
equipment or property damage. Failure to follow
instructions above or properly lift unit could result in
unit dropping and possibly crushing operator/
technician which could result in death or serious injury.
Important: Do not fork lift unit.
See Table 18, p. 30 through Table 22, p. 32 for lifting
weights and Table 23, p. 33 andTable 24, p. 33 for center of
gravity (CG) dimensions.
28RTAC-SVX01M-EN
Rigging
See Figure 10 through Figure 12, p. 29 for lifting point
references, Table 19 through Table 21 for lifting weights,
and unit submittals lift point dimensions.
Figure 10. Lifting the unit (packaged and remote) 15-21 foot base
Figure 11. Lifting the unit (packaged and remote) 30-36 foot base
Installation - Mechanical
Control Panel
W1 - near side
W2 - far side
W3 - near side
W4 - far side
Figure 12. Lifting the unit (packaged and remote) 39-45 foot base