Trane RTAC 140-500, RTAC 140-400 User Manual
Installation
Operation
Maintenance
Series R Air-Cooled Helical Rotary
Liquid Chillers
Preliminary
© American Standard Inc. 2006
Models
RTAC 140-500 ton units (60 Hz)
RTAC 140-400 ton units (50 Hz)
January 2006 RTAC-SVX01F-EN
NOTICE: Warnings and Cautions 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, may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
CAUTION: Indicates a situation that may result in equipment or propertydamage 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 and 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.
WARNING
Contains Refrigerant!
System contains oil and refrigerant under high pressure. Recover
refrigerant to relieve pressure before opening the system. See unit
nameplate for refrigerant type. Do not use non-approved refrigerants,
refrigerant substitutes, or refrigerant additives.
Failure to follow proper procedures or the use of non-approved
refrigerants, refrigerant substitutes, or refrigerant additives could result
in death or serious injury or equipment damage.
2 RTAC-SVX01F-EN
Table of Contents
General Information ............................................................................................. 7
Literature History.................................................................................................... 7
Unit Identification - Nameplates ............................................................................. 7
Unit Inspection ....................................................................................................... 8
Inspection Checklist ............................................................................................... 8
Loose Parts Inventory ............................................................................................ 8
Unit Description...................................................................................................... 8
Installation - Mechanical..................................................................................... 28
Installation Responsibilities ................................................................................... 28
Nameplates ........................................................................................................... 28
Outdoor Unit Nameplate ....................................................................................... 28
Compressor Nameplate ........................................................................................ 28
Storage .................................................................................................................. 29
General .................................................................................................................. 29
Location Requirements ......................................................................................... 29
Setting the Unit ..................................................................................................... 29
Isolation and Sound Emission ............................................................................... 36
Noise Considerations ............................................................................................ 37
Foundation............................................................................................................. 38
Clearances ............................................................................................................. 38
Unit Isolation and Leveling .................................................................................... 41
Neoprene Isolator Installation................................................................................ 41
Drainage ................................................................................................................ 41
Evaporator Water Piping........................................................................................ 41
Evaporator Piping .................................................................................................. 41
Entering Chilled Water Piping................................................................................ 42
Leaving Chilled Water Piping................................................................................. 42
Evaporator Drain .................................................................................................... 42
Evaporator Flow Switch......................................................................................... 42
Evaporator Water Pressure Drop RTAC 140 - 250 Ton ......................................... 43
Evaporator Water Pressure Drop RTAC 250 - 500 Ton ......................................... 44
Water Pressure Gauges ........................................................................................ 45
Water Pressure Relief Valves ................................................................................ 46
Freeze Protection .................................................................................................. 46
Low Evaporator Refrigerant Cutout and % Glycol Recommendations ................. 46
Procedure .............................................................................................................. 46
Important ............................................................................................................... 47
Specials ................................................................................................................. 47
Installation - Mechanical
Remote Evaporator Option ................................................................................ 49
Line Sizing ............................................................................................................. 53
Liquid Line Sizing Steps ........................................................................................ 54
Example Liquid Line Sizing .................................................................................... 55
Suction Line Sizing Steps ...................................................................................... 56
Example Suction Line Sizing.................................................................................. 56
Suction Accumulator Sizing ................................................................................... 57
Example of Suction Accumulator Line Sizing ........................................................ 57
Piping Installation Procedures ............................................................................... 57
Refrigerant Sensors............................................................................................... 58
Refrigerant Pressure Relief Valve Venting............................................................. 58
RTAC-SVX01F-EN 3
Table of Contents
Leak Test and Evacuation ..................................................................................... 58
Refrigerant and Additional Oil Charge .................................................................. 60
Refrigerant Charge Determination........................................................................ 60
Oil Charge Determination ..................................................................................... 61
Installation - Electrical........................................................................................ 62
General Recommendations .................................................................................. 62
Installer-Supplied Components............................................................................. 75
Power Supply Wiring ............................................................................................ 75
Control Power Supply ........................................................................................... 76
Heater Power Supply and Convenience Outlet (Packaged Units Only) ................ 76
Water Pump Power Supply .................................................................................. 77
Interconnecting Wiring ......................................................................................... 77
Chilled Water Flow (Pump) Interlock .................................................................... 77
Chilled Water Pump Control ................................................................................. 77
Alarm and Status Relay Outputs (Programmable Relays)..................................... 78
Relay Assignments Using TechView.................................................................... 79
Low Voltage Wiring .............................................................................................. 79
Emergency Stop ................................................................................................... 79
External Auto/Stop................................................................................................ 80
External Circuit Lockout – Circuit #1 and Circuit #2.............................................. 80
Ice Building Option ............................................................................................... 80
External Chilled Water Setpoint (ECWS) Option................................................... 81
External Current Limit Setpoint (ECLS) Option..................................................... 81
Chilled Water Reset (CWR) .................................................................................. 82
Communications Interface options....................................................................... 84
Optional Tracer Communications Interface .......................................................... 84
LonTalk Communications Interface for Chillers (LCI-C) ........................................ 84
Operating Principles ........................................................................................... 86
Refrigeration Cycle ............................................................................................... 86
Refrigerant R134a................................................................................................. 88
Compressor .......................................................................................................... 88
Condenser and Subcooler .................................................................................... 88
Expansion Valve.................................................................................................... 89
Evaporator ............................................................................................................ 89
Oil System ............................................................................................................ 89
Controls Interface ............................................................................................... 91
CH530 Communications Overview ...................................................................... 91
Controls Interface ................................................................................................. 91
DynaView Interface .............................................................................................. 91
Key Functions ....................................................................................................... 92
Radio Buttons ....................................................................................................... 92
Spin Value Buttons ............................................................................................... 92
Action Buttons ...................................................................................................... 92
Hot Links .............................................................................................................. 92
File Folder Tabs .................................................................................................... 92
Display Screens .................................................................................................... 93
Basic Screen Format ............................................................................................ 93
Front Panel Lockout Feature ................................................................................ 94
Front Panel Display During Cold Ambients........................................................... 94
4 RTAC-SVX01F-EN
Table of Contents
Modes Screen ....................................................................................................... 95
Chiller Screen ....................................................................................................... 101
Compressor Screen.............................................................................................. 101
Refrigerant Screen ............................................................................................... 102
Setpoint Screen .................................................................................................... 103
Diagnostic Screen ................................................................................................ 104
Power-Up ............................................................................................................. 105
Display Formats.................................................................................................... 105
Units ..................................................................................................................... 105
Languages ............................................................................................................ 105
TechView ............................................................................................................ 106
Minimum PC requirements to install and operate TechView ............................... 107
Unit View .............................................................................................................. 107
Compressor Service View .................................................................................... 109
Status View .......................................................................................................... 110
Setpoint View ....................................................................................................... 113
Diagnostics View .................................................................................................. 117
Software View ...................................................................................................... 122
Binding View ........................................................................................................ 123
Replacing or Adding Devices................................................................................ 124
Software Download.............................................................................................. 124
Instructions for First Time TechView Users ......................................................... 124
Diagnostics ......................................................................................................... 126
Legend to Diagnostics Table ................................................................................ 126
Pre-Start Checkout ............................................................................................. 137
Installation Checklist............................................................................................. 137
Receiving .............................................................................................................. 137
Unit Location and Mounting ................................................................................. 137
Unit Piping ............................................................................................................ 137
Electrical Wiring.................................................................................................... 138
General ................................................................................................................. 139
Unit Voltage Power Supply................................................................................... 140
Unit Voltage Imbalance ........................................................................................ 141
Unit Voltage Phasing ............................................................................................ 141
Water System Flow Rates.................................................................................... 142
Water System Pressure Drop............................................................................... 142
CH530 Set-Up ...................................................................................................... 143
Unit Start-Up Procedures .................................................................................. 144
Daily Unit Start-Up ................................................................................................ 144
General ................................................................................................................. 144
Seasonal Unit Start-Up Procedure ........................................................................ 145
System Restart After Extended Shutdown .......................................................... 146
Unit Shutdown Procedures ............................................................................... 147
Temporary Shutdown And Restart ....................................................................... 147
Extended Shutdown Procedure ........................................................................... 147
RTAC-SVX01F-EN 5
Table of Contents
Periodic Maintenance........................................................................................ 149
Weekly Maintenance ........................................................................................... 149
Maintenance Procedures .................................................................................. 155
Refrigerant and Oil Charge Management ............................................................ 155
R134a Field Charging Procedure ......................................................................... 156
Factory (initial) Refrigerant Charging Procedure .................................................. 156
Field Refrigerant Charging Procedure .................................................................. 156
Adding charge:..................................................................................................... 157
Charge Isolation in the high or low side of system.............................................. 157
High side charge isolation procedure: ................................................................. 157
Returning unit to running condition: .................................................................... 158
Low side charge isolation procedure: .................................................................. 158
Refrigerant Filter Replacement Procedure .......................................................... 159
Lubrication System .............................................................................................. 159
Oil Charging Procedure........................................................................................ 159
Factory (initial) Oil Charging Procedure................................................................ 161
Evaporator tube replacement .............................................................................. 163
Compressor Replacement ................................................................................... 163
Unit Wiring ......................................................................................................... 165
6 RTAC-SVX01F-EN
General Information
Literature History
RTAC-SVX001-EN (December 2000)
New manual.
RTAC-SVX01B-EN (September 2001)
New manual describes installation, operation, and maintenance of RTAC units and the
remote evaporator option.
RTAC-SVX01C-EN (February 2002)
Revised manual includes additional RTAC units to size 500 tons, new installation and
maintenance material, and expanded CH530 diagnostics.
RTAC-SVX01D-EN (July 2003)
Revised manual for new evaporator design for 2 compressor units. Design Sequence
H0 and later.
RTAC-SVX01E-EN (July 2004)
Revised manual for new evaporator design for 3 and 4 compressor units. Design
Sequence J0 and later.
RTAC-SVX01F-EN (January 2006)
Revised manual for new control panel design.
Unit Identification - Nameplates
When the unit arrives, compare all nameplate data with ordering, submittal, and shipping information. A typical unit nameplate is shown in Figure 1.
Figure 1 Typical Unit Nameplate
RTAC-SVX01F-EN 7
General information
Unit Inspection
When the unit is delivered, verify that it is the correct unit and that it is properly
equipped. Compare the information which appears on the unit nameplate with the
ordering and submittal information.
Inspect all exterior components for visible damage. Report any apparent damage or
material shortage to the carrier and make a “unit damage” notation on the carrier’s
delivery receipt. Specify the extent and type of damage found and notify the appropri
ate Trane Sales Office. Do not proceed with installation of a damaged unit without
sales office approval.
Inspection Checklist
To protect against loss due to damage incurred in transit, complete the following
checklist upon receipt of the 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 pos
sible. 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.
• Notify the Trane sales representative and arrange for repair. Do not repair the unit,
however, until damage is inspected by the carrier’s representative.
-
-
Loose Parts Inventory
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.
Unit Description
The 140 - 500 ton Model RTAC units are helical-rotary type, air-cooled liquid chillers
designed for installation outdoors. The compressor circuits are completely assem
bled, hermetic packages that are factory-piped, wired, leak-tested, dehydrated, and
tested for proper control operation before shipment.
NOTE: Packaged units are factory charged with refrigerant and oil.
Figure 2 shows a typical RTAC packaged unit and its components.
Table 1 through Table 5 contain general RTAC mechanical specifications for all unit
sizes.
-
8 RTAC-SVX01F-EN
General Information
.
Figure 2 Typical RTAC Unit
Chilled water inlet and outlet openings are covered for shipment. Each compressor
has a separate compressor motor starter. The RTAC series features Trane’s exclusive
Adaptive Control ™ logic, which monitors the control variables that govern the opera
tion 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.
RTAC-SVX01F-EN 9
-
General information
Table 1 General Data — 140-250 Ton 60 Hz Units - Standard Efficiency
Size 140 155 170 185 200 225 250
Type STD STD STD STD STD STD STD
Compressor
Quantity 2 2 2 2 2 2 2
Nominal
Size
Water Storage (gallons) 29 32 33 35 39 38 42
Min. Flow (gpm) 193 214 202 217 241 217 241
Max. Flow (gpm) 709 785 741 796 883 796 883
Quantity of Coils 4 4 4 4 4 4 4
Coil Length (inches) 156/156 180/156 180/180 216/180 216/216 252/216 252/252
Coil Height (inches) 42 42 42 42 42 42 42
Fins/Ft 192 192 192 192 192 192 192
Number of Rows 3 3 3 3 3 3 3
Quantity 4/4 5/4 5/5 6/5 6/6 7/6 7/7
Diameter (inches) 30 30 30 30 30 30 30
Total Airflow (cfm) 77000 84542 92087 101296 110506 119725 128946
Nominal Fan
Speed
Tip Speed (ft/min) 8954 8954 8954 8954 8954 8954 8954
Std Unit (Deg F) 25 25 25 25 25 25 25
Low Ambient (Deg F) 0.0 0.0 0.0 0.0 0,0 0.0 0.0
Refrigerant HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a
No. of Independent
Refrigerant Circuits
% Min . lo ad 15 15 15 15 15 15 15
Refrigerant
Charge
Oil Charge (gallons) 1.5/1.5 1.5/1.5 1.5/1.5 2.1/1.5 2.1/2.1 2.1/2.1 2.1/2.1
Base Length (feet) 15 15 15 18 18 21 21
1. Data containing information on two circuits shown as follows: CKT1/CKT 2.
2. Minimum start-up/operating ambient based on a 5 mph wind across the condenser.
(tons) 70/70 85/70 85/85 100/85 100/100 120/100 120/120
Evaporator
(liters) 111 121 127 134 146 145 158
(l/sec) 12 14 13 14 15 14 15
(l/sec) 45 50 47 50 56 50 56
Condenser
(mm) 3962/3962 4572/3962 4572/4572 5486/4572 5486/5486 6401/5486 6401/6401
(mm) 1067 1067 1067 1067 1067 1067 1067
Condenser Fans
(m m) 762 762 762 762 76 2 76 2 762
3
(m
/hr) 130811 143623 156441 172086 187732 203394 219059
(rpm ) 1140 1140 1140 1140 1140 1140 1140
(rps) 19 19 19 19 19 19 19
(m/s) 45 45 45 45 45 45 45
Min Starting/Operating Ambient
(Deg C) -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9
(Deg C) -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8
General Unit
22 22222
(lb) 165/165 175/165 175/175 215/210 215/215 225/215 225/225
(kg) 75/75 79/75 79/79 98/95 98/98 102/98 102/102
(liters) 6/6 6/6 6/6 8/6 8/8 8/8 8/8
10 RTAC-SVX01F-EN
General Information
Table 2 General Data — 275- 500 Ton 60 Hz Units - Standard Efficiency
Size 275 300 350 400 450 500
Type STD STD STD STD STD STD
Compressor
Quantity 3 3 3 4 4 4
Nominal
Size
Water Storage (gallons) 60 65 70 81 84 89
Min. Flow (gpm) 309 339 375 404 422 461
Max. Flow (gpm) 1134 1243 1374 1483 1548 1690
Quantity of Coils 8 8 8 8 8 8
Coil Length (inches) 180/108 216/108 252/108 216/216 252/216 252/252
Coil Height (inches) 42 42 42 42 42 42
Fins/Ft 192 192 192 192 192 192
Number of Rows 3 3 3 3 3 3
Quantity 10/6 12/6 14/6 12/12 14/12 14/14
Diameter (inches) 30 30 30 30 30 30
Total Airflow (cfm) 147340 165766 184151 221016 239456 257991
Nominal Fan Speed (rpm) 1140 1140 1140 1140 1140 1140
Tip Speed (ft/min) 8954 8954 8954 8954 8954 8954
Std Unit (Deg F) 25 25 25 25 25 25
Low Ambient (Deg F) 0.0 0.0 0.0 0.0 0.0 0.0
Refrigerant HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a
No. of Independent
Refrigerant Circuits
% Min. load 15 15 15 15 15 15
Refrigerant Charge (lb) 365/200 415/200 460/200 415/415 460/415 460/460
Oil Charge (gallons) 4.6/2.1 5.0/2.1 5.0/2.1 5.0/5.0 5.0/5.0 5.0/5.0
Base Length (feet) 30 36 36 39 45 45
1. Data containing information on two circuits shown as follows: CKT1/CKT 2.
2. Minimum start-up/operating ambient based on a 5 mph wind across the condenser.
(tons) 85/85
100
100 /100
100
120/12 0
100
100/10 0
100/10 0
120/120
100 /100
120/120
120/120
Evaporator
(liters) 229 245 264 306 316 337
(l/sec) 20 21 24 26 27 29
(l/sec) 72 78 87 94 98 107
Condenser
(mm) 4572/2743 5486/2743 6401/4572 5486/5486 6401/5486 6401/6401
(mm) 1067 1067 1067 1067 1067 1067
Condenser Fans
(mm) 762 762 762 762 762 762
3
(m
/hr) 250307 281610 312843 375471 406797 438285
(rps) 19 19 19 19 19 19
(m/s) 45 45 45 45 45 45
Min Starting/Oper Ambient
(Deg C) -3.9 -3.9 -3.9 -3.9 -3.9 -3.9
(Deg C) -17.8 -17.8 -17.8 -17.8 -17.8 -17.8
General Unit
222222
(kg) 166/91 188/91 209/91 188/188 209/188 209/209
(liters) 17.4/8 19/8 19/8 19/19 19/19 19/19
RTAC-SVX01F-EN 11
General information
Table 3 General Data — 140-400 Ton 60 Hz Units - High Efficiency
Size 140 155 170 185 200 225 250 275 300 350 400
Type HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH
Compressor
Quantity 22222223344
Nominal
Size
Water
Storage
Min. Flow (gpm) 202 217 241 217 241 241 241 375 375 404 461
Max. Flow (gpm) 741 796 883 796 883 883 883 1374 1374 1483 1690
Quantity of
Coils
Coil Length (inches) 180/180 216/180 216/216 252/216 252//252 144/144 180/108 216/144 252/144 216/216 252/252
Coil Height (inches)4242424242424242424242
Fins/Ft 192 192 192 192 192 192 192 192 192 192 192
Number of Rows33333333333
Quantity 5/5 6/5 6/6 7/6 7/7 8/6 8/8 12/6 14/6 12/12 14/14
Diameter (inches)3030303030303030303030
To ta l
Airflow
Nominal
Fan Speed
Tip Speed (ft/min) 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954
Std Unit (Deg F) 25 25 25 25 25 25 25 25 25 25 25
Low
Ambient
Refrigerant HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a
No. of Independent
Refrigerant Circuits
% Min . lo ad 15 15 15 15 15 15 15 15 15 15 15
Refrigerant
Charge
Oil Charge (gallons) 1.5/1.5 1.5/1.5 1.5/1.5 2.1/1.5 2.1/2.1 2.1/2.1 2.1/2.1 4.6/2.2 5.0/2.2 4.6/4.6 5.0/5.0
Base
Length
1. Data containing information on two circuits shown as follows: CKT 1/CKT 2
2. Minimum start-up/operating ambient based on a 5 mph wind across the condenser
(tons) 70/70 85/70 85/85 100/85 100/100 120/100 120/120 85/85
100
100/10 0
100
85/85
85/85
100/10 0
100/10 0
Evaporator
(gallons)3335393842424270708189
(liters) 127 134 146 145 158 158 158 264 264 306 337
(l/sec)1314151415151524242629
(l/sec) 47 50 56 50 56 56 56 87 87 94 107
Condenser
44444888888
(mm) 4572/
4572
(mm) 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067
5486/
4572
5486/
5486
6401/
5486
6401/
6401
3658/
3658
4572/
2743
5486/
3658
6401/
3658
5486/
5486
6401/
6401
Condenser Fans
(m m) 762 76 2 762 762 762 762 762 762 762 76 2 762
(cfm) 91993 101190 110387 119598 128812 136958 147242 173733 192098 220778 257626
3
(m
/hr) 156281 171906 187530 203178 218831 232670 250141 295145 326344 375066 437665
(rpm ) 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140
(rps)1919191919191919191919
(m/s)4545454545454545454545
Min Starting/Oper Ambient
(Deg C) -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9
(Deg F) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
(Deg C) -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8
General Unit
22222222222
(lb) 175/175 215/205 215/215 225/215 225/225 235/235 235/235 415/200 460/200 415/415 460/460
(kg) 79/79 98/93 98/98 102/98 102/102 107/107 107/107 188/91 209/91 188/188 209/209
(liters) 6/6 6/6 6/6 8/6 8/8 8/8 8/8 17/8 19/8 17/17 19/19
(feet) 15 18 18 21 21 30 30 36 39 39 45
12 RTAC-SVX01F-EN
General Information
Table 4 General Data - 120-400 Ton 50 Hz Units-Standard Efficiency
Size 140 155 170 185 200 250 275 300 350 375 400
Type STD STD STD STD STD STD STD STD STD STD STD
Compressor
Quantity 22222333444
Nominal
Size
(tons) 70/70 85/70 85/85 100/85 100/100 70-70/100 85-85/100 100-100/
100
85-85/85-85100-10 0/
85-85
100-10 0/
100-10 0
Evaporator
Water
Storage
Min. Flow (gpm) 192 221 200 215 239 262 307 336 384 377 401
Max. Flow (gpm) 702 778 735 789 875 962 1124 1232 1275 1383 1470
(gallons)29 32 33 35 38 546064737780
(liters) 110 120 126 133 145 203 227 243 275 291 304
(l/sec)1213131415171921222425
(l/sec) 44 49 46 50 55 61 72 78 80 87 93
Condenser
Quantity of
Coils
Coil Length (inches) 156/156 180/156 180/180 216/180 216/216 156/108 180/108 216/108 180/180 216/180 252/216
(mm) 3962/
Coil Height (inches) 42 42 42 42 42 42 42 42 42 42 42
(mm) 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067
Fins/Ft 192 192 192 192 192 192 192 192 192 192 192
Number of Rows33333333333
44444888888
3962
4512/
3962
4572/
4512
5486/
4572
5486/
5486
3962/
4512
4572/
2743
5486/
2743
4572/
4572
5486/
4572
6401/
5486
Condenser Fans
Quantity 4/4 5/4 5/5 6/5 6/6 8/6 10/6 12/6 10/10 12/10 12/12
Diameter (inches) 30 30 30 30 30 30 30 30 30 30 30
(m m) 76 2 762 762 76 2 762 76 2 762 762 76 2 762 76 2
To t al
Airflow
Nominal
Fan Speed
Tip Speed (ft/min) 7461 7461 7461 7461 7461 7461 7461 7451 7461 7461 7461
(cfm) 63346 69507 75671 83236 90803 108698 121056 136210 151332 166467 181611
3
/hr) 107615 118081 128553 141405 154260 184661 205655 231399 257089 282801 308528
(m
(rpm) 950 950 950 950 950 950 950 950 950 950 950
(rps) 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8
(m/s)38 38 38 38 38 383838383838
Min Starting/Oper Ambient
Std Unit (Deg F) 25 25 25 25 25 25 25 25 25 25 25
(Deg C) -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9
Low
Ambient
(Deg F)00000000000
(Deg C) -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8
General Unit
Refrigerant HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a
No. of Independent
Refrigerant Circuits
% Min. load 15 15 15 15 15 15 15 15 15 15 15
Refrigerant
Charge
Oil
Charge
Base
Length
1. Data containing information on two circuits shown as follows: CKT 1/CKT 2
2. Minimum start-up/operating ambient based on a 5 mph wind across the condenser
(lb) 165/165 175/165 175/175 215/210 215/215 335/200 365/200 415/200 365/365 415/365 415/415
(kg) 75/75 79/75 79/79 98/95 98/98 152/91 166/91 188/91 166/166 188/166 188/188
(gallons) 1.5/1.5 1.5/1.5 1.5/1.5 2.1/1.5 2.1/2.1 4.6/2.1 4.6/2.1 5.0/2.1 4.6/4.6 5.0/4.6 5.0/5.0
(liters) 6/6 6/6 6/6 8/6 8/8 17.4/8 17.4/8 19.0/8 17.4/17.4 19.0/17.4 19.0/19.0
(feet)15 15 15 18 18 303036393939
22222222222
RTAC-SVX01F-EN 13
General information
Table 5 General Data - 120-400 Ton 50 Hz Units-High Efficiency
Size 140 155 170 185 200 250 275 300 350 375 400
Type HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH
Compressor
Quantity 2 2 2 2 2 3 3 3 4 4 4
Nominal Size (tons) 7 0/70 85/70 85/8 5 100/85 100/100 70-70/
100
Evaporator
Water
Storage
Min. Flow (gpm) 200 215 239 215 239 336 371 371 401 419 457
Max. Flow (gpm) 735 789 875 789 875 1232 1362 1362 1470 1535 1675
(gallons)33 353838416469 6980 83 89
(liters) 126 133 145 145 157 243 262 262 304 314 335
(l/sec) 13 14 15 14 15 21 23 23 25 26 29
(l/sec) 46 50 55 50 55 78 86 86 93 97 106
Condenser
Qty of Coils 4 444488 88 8 8
Coil Length (inches) 180/180 216/180 216/216 252/216 252/252 180/108 216/144 252/144 216/216 252/216 252/252
(mm) 4572/
Coil Height (inches) 42 42 42 42 42 42 42 42 42 42 42
(mm) 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067
Fins/Ft 192 192 192 192 192 192 192 192 192 192 192
Number of Rows 3 3 3 3 3 3 3 3 3 3 3
4572
5486/
4572
5486/
5486
6401/
5486
6401/
6401
4572/
2743
Condenser Fans
Quantity 5/5 6/5 6/6 7/6 7/7 10/6 12/6 14/6 12/12 14/12 14/14
Diameter in. (mm) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762)
Total Airflow (cfm) 75575 83130 90687 98256 105826 120971 142969 158112 181371 194731 211648
Nominal Fan
Speed
Tip Speed (ft/min) 7461 7461 7461 7461 7461 7461 7461 7461 7461 7461 7461
3
/hr) 128390 141225 154063 166921 179781 205510 242881 268607 308120 330817 359556
(m
(rpm) 950 950 950 950 950 950 950 950 950 950 950
(rps) 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8
(m/s) 38 38 38 38 38 38 38 38 38 38 38
Min Starting/Oper Ambient
Std Unit Deg F
Low
Ambient
(C)
Deg F
(C)
25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9) 25 (-3.9)
0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8) 0 (-17.8)
General Unit
Refrigerant HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a
No. of Independent
Refrigerant Circuits
% Min. load 15 15 15 15 15 15 15 15 15 15 15
Refrigerant
Charge
Oil Charge (gallons) 1.5/1.5 1.5/1.5 1.5/1.5 2.1/1.5 2.1/2.1 4.6/2.1 4.6/2.1 5.0/2.1 4.6/4.6 5.0/5.0 5.0/5.0
Base Length (feet) 15 18 18 21 21 30 36 39 39 45 45
1. Data containing information on two circuits shown as follows CKT 1/CKT 2
2. Minimum start-up/operating ambient based on a 5 mph wind across the condenser
(lb) 175/175 215/205 215/215 225/215 225/225 365/200 415/200 460/200 415/415 460/415 460/460
(kg) 79/79 98/93 98/98 102/98 102/102 166/91 188/91 209/91 188/188 209/188 209/209
(liters) 6/6 6/6 6/6 8/6 8/8 17.4/8 17.4/8 19.0/8 17.4/17.4 19.0/19.0 19.0/19.0
22222222222
85-85/
100
5486/3658 6401/
100-10 0/
100
3658
85-85/
85-85
5486/5486 6401/5486 6401/
100-10 0/
85-85
100-10 0/
100-10 0
6401
14 RTAC-SVX01F-EN
General Information
Figure 3 Unit Dimensions 185-200 Ton Standard Efficiency, 60 Hz and 155, 170 Ton, High Efficiency, 50 and 60 Hz
RTAC-SVX01F-EN 15
Figure 4 Unit Dimensions 225-250 Ton Standard Efficiency, 60 Hz and 185-200 Ton, High Efficiency, 50 and 60 Hz
16 RTAC-SVX01F-EN
Figure 5 Unit Dimensions 225-250 Ton High Efficiency, 60 Hz
RTAC-SVX01F-EN 17
Figure 6 Unit Dimensions 250-275 Ton Standard Efficiency, 50 Hz and 250 Ton High Efficiency, 50 Hz and 275 Ton
Standard Efficiency, 60 Hz
18 RTAC-SVX01F-EN
Figure 7 Unit Dimensions 275 Ton High Efficiency, 50 and 60 Hz; 300 Ton, Standard Efficiency, 50 and 60 Hz and 350
Ton, Standard Efficiency 60 Hz
RTAC-SVX01F-EN 19
Figure 8 Unit Dimensions 300 Ton High Efficiency, 50 and 60 Hz
20 RTAC-SVX01F-EN
Figure 9 Unit Dimensions 350-400 Ton Standard Efficiency, Hz and 400 Ton, Standard Efficiency, 60 Hz and 350 Ton
High Efficiency, 50 and 60Hz
RTAC-SVX01F-EN 21
Figure 10 Unit Dimensions 450-500 Ton Standard Efficiency, 60 Hz and 375-400 Ton, High Efficiency, 50 Hz and 400 Ton
High Efficiency, 60 Hz
22 RTAC-SVX01F-EN
Figure 11 Unit Dimensions of Condenser/Compressor Unit for Remote Evaporator Option
RTAC-SVX01F-EN 23
Figure 12 Unit Dimensions for Remote Evaporator 140-170 Ton Standard Efficiency and 140 Ton High Efficiency
24 RTAC-SVX01F-EN
Figure 13 Unit Dimensions for Remote Evaporator185-250 Ton Standard Efficiency and 155-200 Ton High Efficiency
RTAC-SVX01F-EN 25
Model Number Coding System
The model numbers for the unit and the starter are composed of numbers and letters
that represent features of the equipment. Shown in the following table 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, Unit Voltage, 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 following defi-
nitions using the model number example shown above.
26 RTAC-SVX01F-EN
Digit 1-4
Unit Model
RTAC Air Cooled Series R® chiller
Digit 5-7
Unit Nominal Capacity
140 140 Nominal Tons
155 155 Nominal Tons
170 170 Nominal Tons
185185 Nominal Tons
200 200 Nominal Tons
225 225 Nom inal Tons
250 250 Nom inal Tons
275 275 Nom inal Tons
300 300 Nominal Tons
350 350 Nom inal Tons
375 375 Nom inal Tons
400 400 Nominal Tons
450 450 Nom inal Tons
500 500 Nominal Tons
Digit 8
Unit Voltage
A 200V/60Hz/3Ph power
K 220V/50Hz/3 Ph power
C 230V/60Hz/3Ph power
J380V/60Hz/3Ph power
D 400V/50Hz/3Ph power
4 460V/60Hz/3Ph power
5 575V/60Hz/3Ph power
Digit 9
Manufacturing Location
U Pueblo
ECharmes
Digit 10-11
Design Sequence
XX Factory/ABU Assigned
Digit 12
Unit Type
N Std. Efficiency/Performance
H High Efficiency/Performance
Digit 13
Agency Listing
N No agency listing
U C/UL listing
Digit 14
Pressure Vessel Code
A ASME pressure vessel code
C Canadian code
D Australian code
L Chinese code
R Vietanamese code
S Special
Digit 15
Evaporator Temperature Range &
Application Type
F Standard Temp. with Frz Prot
RRem Evap, Std. Temp, No Frz
Prot
G Low Temp, with Frz Prot
Digit 16
Evaporator Configuration
N Standard pass arrangement,
insulated
Digit 17
Condenser Temperature Range
N Standard ambient range
25-115 deg F
H High ambient capability
25-125 deg F
LLow ambient capability
0-115 deg F
WWide ambient capability
0-125 deg F
Digit 18
Condenser Fin Material
1 Standard aluminum slit fins
2 Copper fins, non-slit fins
4Complete Coat aluminum fins
Digit 19
Condenser Fan/Motor Configuration
N Condenser fans with ODP
motors
W Low Noise fans
T Condenser fans with TEAO
motors
Digit 20
Compressor Motor Starter Type
X Across-the-line starters
Y Wye-delta closed transition
starters
Digit 21
Incoming Power Line Connection
1 Single point power connection
2 Dual point power connection (1/
ckt)
Digit 22
Power Line Connection Type
TTerminals only
D Non-fused disconnect
switch(es)
C Circuit Breaker(s), HACR-rated
Digit 23
Unit Operator Interface
E Easy-View operator interface
D Dyna-View operator interface
Digit 24
Remote Interface
N No remote interface
C Tracer Comm 3 interface
LLon Talk Communication interface
(LCI)
Digit 25
Control Input Accessories/Options
N No remote input
RRemote leaving water temp stpt
CRemote current limit setpoint
BRemote lvg. temp.setpoint and
remote current limit setpoint
Digit 26
COOP 26
Control Output Accessories/Options
N No output options
AAlarm relay
CIcemaking
DIcemaking and alarm relay
Digit 27
Short Circuit Rating
0 No short circuit withstand rating
5 10000A SCR
4 35000A SCR
6 65000A SCR
Digit 28
Electrical Accessories and Export
Packing
N No flow switches
F NEMA-1 flow switch - 150 psi
E Vapor Proof FS - 150 psi
Digit 29
Control Panel Accessories
N No convenience outlet
A 15A 115V convenience outlet
(60HZ)
Digit 30
Refrigerant Service Valves
1 Suction service valves
Digit 31
Compressor Sound Attenuator
Option
0 No sound attenuator
1 Factory installed sound attenuator
Digit 32
Appearance Options
N No appearance options
A Architectural louvered panels
CHalf Louvers
G Access guards
B Access guards and half louvers
P Painted unit
L Painted unit with full louvered
panels
H Painted unit with half louvered
panels
K Painted unit with access guards
W Painted w/access guards and half
louvers
Digit33
Installation Accessories
N No installation accessories
R Neoprene isolators
F Flanged water connection kit
G Neoprene isolators and flange
wtr conn kit
Digit 34
Factory Test
0 No factory run test
P Performance test
WWitness test
Digit 35
Label, and Literature Language
EEnglish
G Chinese
Digit 36
Special Order
X Standard catalog configuration
S Unit has special order feature
Digit 37
Safety Devices
N None
X Standard
RTAC-SVX01F-EN 27
Installation - Mechanical
Installation Responsibilities
Generally, the contractor must do the following when installing an RTAC unit:
• 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 the evaporator for
maintenance, and to balance/trim system.
• Furnish and install flow switch to prove chilled water flow.
• 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 tape and insulate the chilled water 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.
Nameplates
The RTAC outdoor unit nameplates (Figure 1) are applied to the exterior of the Control
Panel. A compressor nameplate is located on each compressor.
Outdoor Unit Nameplate
The outdoor 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).
Compressor Nameplate
The compressor nameplate provides following information:
– Compressor model number.
– Compressor serial number.
– Compressor electrical characteristics.
– Utilization range.
– Recommended refrigerant.
28 RTAC-SVX01F-EN
Installation - Mechanical
Storage
Extended storage of the outdoor unit prior to installation requires the following precautionary measures:
1. Store the outdoor unit in a secure area.
2. 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.
3. Close the discharge and liquid line isolation valves.
General
Report any damage incurred during handling or installation to the Trane sales office
immediately.
Location Requirements
Setting the Unit
A base or foundation is not required if the selected unit location is level and strong
enough to support the unit’s operating weight as listed in
the General Information section.
See Table 6 for lifting weights and center of gravity (CG) dimensions.
Tab l e 1 through Tab l e 5 in
1. Lifting chains/cables will not
be the same length. Adjust to keep unit level while lifting.
2. Do not fork lift unit.
3. Weights are typical for units with R-134a charge.
Figure 14 Lifting the Unit (Package and Remote) 15-21-foot Base
RTAC-SVX01F-EN 29
Installation - Mechanical
1. Lifting chains/cables will not be the same length. Adjust to
keep unit level while lifting.
2. Do not fork lift unit.
3. Weights are typical for units with R-134a charge.
Figure 15 Lifting the Unit (Package and Remote) 30-36-foot Base
1. Lifting chains/cables will not be the same length. Adjust to
keep unit level while lifting.
2. Do not fork lift unit.
3. Weights are typical for units with R-134a charge.
Figure 16 Lifting the Unit 39-45-foot Base
30 RTAC-SVX01F-EN
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