Trane RTAC 140-500, RTAC 140-400 User Manual

4.7 (6)

Installation

Operation

Maintenance

Series R Air-Cooled Helical Rotary

Liquid Chillers

Models

RTAC 140-500 ton units (60 Hz)

RTAC 140-400 ton units (50 Hz)

 

 

 

January 2006

RTAC-SVX01F-EN

© American Standard Inc. 2006

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 appropriate 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 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.

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 assembled, 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 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.

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

(tons)

70/70

85/70

85/85

100/85

100/100

120/100

120/120

Size

 

 

 

 

 

 

 

 

 

 

 

 

Evaporator

 

 

 

 

Water Storage

(gallons)

29

32

33

35

39

38

42

 

(liters)

111

121

127

134

146

145

158

Min. Flow

(gpm)

193

214

202

217

241

217

241

 

(l/sec)

12

14

13

14

15

14

15

Max. Flow

(gpm)

709

785

741

796

883

796

883

 

(l/sec)

45

50

47

50

56

50

56

 

 

 

 

 

 

 

 

 

 

 

 

 

Condenser

 

 

 

 

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

 

(mm)

3962/3962

4572/3962

4572/4572

5486/4572

5486/5486

6401/5486

6401/6401

Coil Height

(inches)

42

42

42

42

42

42

42

 

(mm)

1067

1067

1067

1067

1067

1067

1067

Fins/Ft

 

192

192

192

192

192

192

192

Number of Rows

3

3

3

3

3

3

3

 

 

 

 

 

 

 

 

 

 

 

 

 

Condenser Fans

 

 

 

 

Quantity

 

4/4

5/4

5/5

6/5

6/6

7/6

7/7

Diameter

(inches)

30

30

30

30

30

30

30

 

(mm)

762

762

762

762

762

762

762

Total Airflow

(cfm)

77000

84542

92087

101296

110506

119725

128946

 

(m3/hr)

130811

143623

156441

172086

187732

203394

219059

Nominal Fan

(rpm)

1140

1140

1140

1140

1140

1140

1140

Speed

(rps)

19

19

19

19

19

19

19

 

Tip Speed

(ft/min)

8954

8954

8954

8954

8954

8954

8954

 

(m/s)

45

45

45

45

45

45

45

 

 

 

 

 

 

 

 

 

 

Min Starting/Operating Ambient

 

 

 

Std Unit

(Deg F)

25

25

25

25

25

25

25

 

(Deg C)

-3.9

-3.9

-3.9

-3.9

-3.9

-3.9

-3.9

Low Ambient

(Deg F)

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

 

 

 

 

 

 

 

 

 

 

 

 

 

General Unit

 

 

 

 

Refrigerant

 

HFC-134a

HFC-134a

HFC-134a

HFC-134a

HFC-134a

HFC-134a

HFC-134a

No. of Independent

2

2

2

2

2

2

2

Refrigerant Circuits

 

 

 

 

 

 

 

% Min. load

 

15

15

15

15

15

15

15

Refrigerant

(lb)

165/165

175/165

175/175

215/210

215/215

225/215

225/225

Charge

 

 

 

 

 

 

 

 

 

(kg)

75/75

79/75

79/79

98/95

98/98

102/98

102/102

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

 

(liters)

6/6

6/6

6/6

8/6

8/8

8/8

8/8

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.

10

RTAC-SVX01F-EN

General Information

Table 2

General Data — 275500 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

 

(tons)

85/85

100/100

120/120

100/100

120/120

120/120

Size

 

 

100

100

100

100/100

100/100

120/120

 

 

 

 

Evaporator

 

 

 

Water Storage

(gallons)

60

65

70

81

84

89

 

 

(liters)

229

245

264

306

316

337

Min. Flow

(gpm)

309

339

375

404

422

461

 

 

(l/sec)

20

21

24

26

27

29

Max. Flow

(gpm)

1134

1243

1374

1483

1548

1690

 

 

(l/sec)

72

78

87

94

98

107

 

 

 

 

 

 

 

 

 

 

 

 

Condenser

 

 

 

Quantity

of Coils

 

8

8

8

8

8

8

Coil Length

(inches)

180/108

216/108

252/108

216/216

252/216

252/252

 

 

(mm)

4572/2743

5486/2743

6401/4572

5486/5486

6401/5486

6401/6401

Coil Height

(inches)

42

42

42

42

42

42

 

 

(mm)

1067

1067

1067

1067

1067

1067

Fins/Ft

 

 

192

192

192

192

192

192

Number of Rows

 

3

3

3

3

3

3

 

 

 

 

 

 

 

 

 

 

 

 

Condenser Fans

 

 

 

Quantity

 

 

10/6

12/6

14/6

12/12

14/12

14/14

Diameter

 

(inches)

30

30

30

30

30

30

 

 

(mm)

762

762

762

762

762

762

Total Airflow

(cfm)

147340

165766

184151

221016

239456

257991

 

 

(m3/hr)

250307

281610

312843

375471

406797

438285

Nominal Fan Speed (rpm)

1140

1140

1140

1140

1140

1140

 

 

(rps)

19

19

19

19

19

19

Tip Speed

(ft/min)

8954

8954

8954

8954

8954

8954

 

 

(m/s)

45

45

45

45

45

45

 

 

 

 

 

 

 

 

 

 

 

 

Min Starting/Oper Ambient

 

 

 

Std Unit

 

(Deg F)

25

25

25

25

25

25

 

 

(Deg C)

-3.9

-3.9

-3.9

-3.9

-3.9

-3.9

Low Ambient

(Deg F)

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

 

 

 

 

 

 

 

 

 

 

 

 

General Unit

 

 

 

Refrigerant

 

HFC-134a

HFC-134a

HFC-134a

HFC-134a

HFC-134a

HFC-134a

No. of Independent

 

2

2

2

2

2

2

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

 

 

(kg)

166/91

188/91

209/91

188/188

209/188

209/209

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

 

 

(liters)

17.4/8

19/8

19/8

19/19

19/19

19/19

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.

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

 

2

2

2

2

2

2

2

3

3

4

4

Nominal

(tons)

70/70

85/70

85/85

100/85

100/100

120/100

120/120

85/85

100/100

85/85

100/100

Size

 

 

 

 

 

 

 

 

100

100

85/85

100/100

 

 

 

 

 

 

Evaporator

 

 

 

 

 

 

Water

(gallons)

33

35

39

38

42

42

42

70

70

81

89

Storage

(liters)

127

134

146

145

158

158

158

264

264

306

337

 

Min. Flow

(gpm)

202

217

241

217

241

241

241

375

375

404

461

 

(l/sec)

13

14

15

14

15

15

15

24

24

26

29

Max. Flow

(gpm)

741

796

883

796

883

883

883

1374

1374

1483

1690

 

(l/sec)

47

50

56

50

56

56

56

87

87

94

107

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Condenser

 

 

 

 

 

 

Quantity of

 

4

4

4

4

4

8

8

8

8

8

8

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

 

(mm)

4572/

5486/

5486/

6401/

6401/

3658/

4572/

5486/

6401/

5486/

6401/

 

 

4572

4572

5486

5486

6401

3658

2743

3658

3658

5486

6401

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Condenser Fans

 

 

 

 

 

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)

30

30

30

30

30

30

30

30

30

30

30

 

(mm)

762

762

762

762

762

762

762

762

762

762

762

Total

(cfm)

91993

101190

110387

119598

128812

136958

147242

173733

192098

220778

257626

Airflow

(m3/hr)

156281

171906

187530

203178

218831

232670

250141

295145

326344

375066

437665

Nominal

(rpm)

1140

1140

1140

1140

1140

1140

1140

1140

1140

1140

1140

Fan Speed

(rps)

19

19

19

19

19

19

19

19

19

19

19

Tip Speed

(ft/min)

8954

8954

8954

8954

8954

8954

8954

8954

8954

8954

8954

 

(m/s)

45

45

45

45

45

45

45

45

45

45

45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

(Deg F)

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Ambient

(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

2

2

2

2

2

2

2

2

2

2

2

Refrigerant Circuits

 

 

 

 

 

 

 

 

 

 

 

% Min. load

 

15

15

15

15

15

15

15

15

15

15

15

Refrigerant

(lb)

175/175

215/205

215/215

225/215

225/225

235/235

235/235

415/200

460/200

415/415

460/460

Charge

(kg)

79/79

98/93

98/98

102/98

102/102

107/107

107/107

188/91

209/91

188/188

209/209

 

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

 

(liters)

6/6

6/6

6/6

8/6

8/8

8/8

8/8

17/8

19/8

17/17

19/19

 

 

 

 

 

 

 

 

 

 

 

 

 

Base

(feet)

15

18

18

21

21

30

30

36

39

39

45

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

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

 

2

2

2

2

2

3

3

3

4

4

4

Nominal

(tons)

70/70

85/70

85/85

100/85

100/100

70-70/100

85-85/100

100-100/

85-85/85-

100-100/

100-100/

Size

 

 

 

 

 

 

 

 

100

85

85-85

100-100

 

 

 

 

 

Evaporator

 

 

 

 

 

 

Water

(gallons)

29

32

33

35

38

54

60

64

73

77

80

Storage

(liters)

110

120

126

133

145

203

227

243

275

291

304

 

Min. Flow

(gpm)

192

221

200

215

239

262

307

336

384

377

401

 

(l/sec)

12

13

13

14

15

17

19

21

22

24

25

Max. Flow

(gpm)

702

778

735

789

875

962

1124

1232

1275

1383

1470

 

(l/sec)

44

49

46

50

55

61

72

78

80

87

93

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Condenser

 

 

 

 

 

 

Quantity of

 

4

4

4

4

4

8

8

8

8

8

8

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/

4512/

4572/

5486/

5486/

3962/

4572/

5486/

4572/

5486/

6401/

 

 

3962

3962

4512

4572

5486

4512

2743

2743

4572

4572

5486

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

(mm)

762

762

762

762

762

762

762

762

762

762

762

Total

(cfm)

63346

69507

75671

83236

90803

108698

121056

136210

151332

166467

181611

Airflow

(m3/hr)

107615

118081

128553

141405

154260

184661

205655

231399

257089

282801

308528

Nominal

(rpm)

950

950

950

950

950

950

950

950

950

950

950

Fan Speed

(rps)

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

Tip Speed

(ft/min)

7461

7461

7461

7461

7461

7461

7461

7451

7461

7461

7461

 

(m/s)

38

38

38

38

38

38

38

38

38

38

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

(Deg F)

0

0

0

0

0

0

0

0

0

0

0

Ambient

(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

2

2

2

2

2

2

2

2

2

2

2

Refrigerant Circuits

 

 

 

 

 

 

 

 

 

 

 

% Min. load

 

15

15

15

15

15

15

15

15

15

15

15

Refrigerant

(lb)

165/165

175/165

175/175

215/210

215/215

335/200

365/200

415/200

365/365

415/365

415/415

Charge

(kg)

75/75

79/75

79/79

98/95

98/98

152/91

166/91

188/91

166/166

188/166

188/188

 

Oil

(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

Charge

(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

 

Base

(feet)

15

15

15

18

18

30

30

36

39

39

39

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

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)

70/70

85/70

85/85

100/85

100/100

70-70/

85-85/

100-100/

85-85/

100-100/

100-100/

 

 

 

 

 

 

 

100

100

100

85-85

85-85

100-100

 

 

 

 

 

Evaporator

 

 

 

 

 

Water

(gallons)

33

35

38

38

41

64

69

69

80

83

89

Storage

(liters)

126

133

145

145

157

243

262

262

304

314

335

 

Min. Flow

(gpm)

200

215

239

215

239

336

371

371

401

419

457

 

(l/sec)

13

14

15

14

15

21

23

23

25

26

29

Max. Flow

(gpm)

735

789

875

789

875

1232

1362

1362

1470

1535

1675

 

(l/sec)

46

50

55

50

55

78

86

86

93

97

106

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Condenser

 

 

 

 

 

Qty of Coils

 

4

4

4

4

4

8

8

8

8

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/

5486/

5486/

6401/

6401/

4572/

5486/3658

6401/

5486/5486

6401/5486 6401/

 

 

4572

4572

5486

5486

6401

2743

 

3658

 

 

6401

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

(m3/hr)

128390

141225

154063

166921

179781

205510

242881

268607

308120

330817

359556

Nominal Fan (rpm)

950

950

950

950

950

950

950

950

950

950

950

Speed

(rps)

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

15.8

 

Tip Speed

(ft/min)

7461

7461

7461

7461

7461

7461

7461

7461

7461

7461

7461

 

(m/s)

38

38

38

38

38

38

38

38

38

38

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min Starting/Oper Ambient

 

 

 

 

 

Std Unit

Deg F

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)

 

(C)

 

 

 

 

 

 

 

 

 

 

 

Low

Deg F

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)

Ambient

(C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

2

2

2

2

2

2

2

2

2

2

2

Refrigerant Circuits

 

 

 

 

 

 

 

 

 

 

 

% Min. load

 

15

15

15

15

15

15

15

15

15

15

15

Refrigerant

(lb)

175/175

215/205

215/215

225/215

225/225

365/200

415/200

460/200

415/415

460/415

460/460

Charge

(kg)

79/79

98/93

98/98

102/98

102/102

166/91

188/91

209/91

188/188

209/188

209/209

 

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

 

(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

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

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

Trane RTAC 140-500, RTAC 140-400 User Manual

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 definitions 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

185 185 Nominal Tons

200 200 Nominal Tons

225 225 Nominal Tons

250 250 Nominal Tons

275 275 Nominal Tons

300 300 Nominal Tons

350 350 Nominal Tons

375 375 Nominal Tons

400 400 Nominal Tons

450 450 Nominal Tons

500 500 Nominal Tons

Digit 8

Unit Voltage

A 200V/60Hz/3Ph power K 220V/50Hz/3 Ph power

C230V/60Hz/3Ph power

J380V/60Hz/3Ph power

D400V/50Hz/3Ph power 4 460V/60Hz/3Ph power

5 575V/60Hz/3Ph power

Digit 9

Manufacturing Location

U Pueblo

E Charmes

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

CCanadian code

DAustralian code

LChinese code

RVietanamese code

S Special

Digit 15

Evaporator Temperature Range &

Application Type

FStandard Temp. with Frz Prot

RRem Evap, Std. Temp, No Frz Prot

GLow Temp, with Frz Prot

Digit 16

Evaporator Configuration

NStandard pass arrangement, insulated

Digit 17

Condenser Temperature Range

NStandard ambient range 25-115 deg F

HHigh ambient capability 25-125 deg F

L Low ambient capability 0-115 deg F

WWide ambient capability 0-125 deg F

Digit 18

Condenser Fin Material

1Standard aluminum slit fins

2Copper fins, non-slit fins

4 Complete Coat aluminum fins

Digit 19

Condenser Fan/Motor Configuration

NCondenser fans with ODP motors

W Low Noise fans

TCondenser fans with TEAO motors

Digit 20

Compressor Motor Starter Type

XAcross-the-line starters

YWye-delta closed transition starters

Digit 21

Incoming Power Line Connection

1Single point power connection

2Dual point power connection (1/ ckt)

Digit 22

Power Line Connection Type

T Terminals 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

R Remote leaving water temp stpt C Remote current limit setpoint

BRemote lvg. temp.setpoint and remote current limit setpoint

Digit 26

 

COOP

26

Control Output Accessories/Options

N No output options A Alarm relay

CIcemaking

DIcemaking and alarm relay

Digit 27

Short Circuit Rating

0 No short circuit withstand rating

510000A SCR

435000A SCR

665000A 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

A15A 115V convenience outlet (60HZ)

Digit 30

Refrigerant Service Valves

1 Suction service valves

Digit 31

Compressor Sound Attenuator

Option

0No sound attenuator

1Factory installed sound attenuator

Digit 32

Appearance Options

N No appearance options

AArchitectural louvered panels

CHalf Louvers

GAccess guards

BAccess guards and half louvers

PPainted unit

LPainted unit with full louvered panels

HPainted unit with half louvered panels

KPainted unit with access guards

WPainted w/access guards and half louvers

Digit33

Installation Accessories

N No installation accessories

R Neoprene isolators

FFlanged water connection kit

GNeoprene isolators and flange wtr conn kit

Digit 34

Factory Test

0 No factory run test P Performance test

W Witness test

Digit 35

Label, and Literature Language

E English

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 Table 1 through Table 5 in the General Information section.

See Table 6 for lifting weights and center of gravity (CG) dimensions.

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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