Trane RTHD series Installation, Operation And Maintanance

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Page 1

Series R Helical Rotary Liquid Chillers

With heat recovery option

Models: RTHD

175-450 ton units (60 Hz) 125-410 ton units (50 Hz)

Feb. 2018

RTHD-SVX02H-EN

J99000002020

SAFETY WARNING

Only qualied personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specic knowledge and training. Improperly installed, adjusted or altered equipment by an unqualied person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

Installation, Operation,

and Maintenance

Page 2

Warnings, Cautions and Notices

Note that warnings, cautions and notices appear at appropriate intervals throughout this manual. Warnings are provide to alert installing contractors to potential hazards that could result in death or personal injury. Cautions are designed to alert personnel to hazardous situations that could result in personal injury, while notices indicate a situation that could result in equipment or property-damage-only accidents.

Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

Read this manual thoroughly before operating or servicing this unit.

ATTENTION:

Warnings, Cautions and Notices appear at appropriate sections throughout this literature. Read these carefully:

DWARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

DCAUTION

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

NOTICE:

Indicates a situation that could result in equipment or property-damage only

Important Environmental Concerns!

Scientiﬁc research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identiﬁed chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs such as HCFCs and HFCs.

Responsible Refrigerant Practices!

Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certiﬁed. The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service pro-

cedures. 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.

DWARNING

Proper Field Wiring and Grounding Required!

All eld wiring MUST be performed by qualied personnel. Improperly installed and grounded eld wiring

poses FIRE and ELECTROCUTION hazards. To avoid

these hazards, you MUST follow requirements for eld wiring installation and grounding as described in NEC and your local/state electrical codes. Failure to follow code could result in death or serious injury.

DWARNING

Personal Protective Equipment (PPE) Required!

Installing/servicing this unit could result in exposure to

electrical, mechanical and chemical hazards.

• Before installing/servicing this unit, technicians MUST put on all Personal Protective Equipment (PPE) recommended for the work being undertaken. ALWAYS refer to appropriate MSDS sheets and OSHA guidelines for proper PPE.

• When working with or around hazardous chemicals, ALWAYS refer to the appropriate MSDS sheets and OSHA guidelines for information on allowable personal exposure levels, proper respiratory protection

and handling recommendations.

• If there is a risk of arc or ash, technicians MUST

put on all Personal Protective Equipment (PPE) in

accordance with NFPA 70E or other country-specific requirements for arc ash protection, PRIOR to

servicing the unit.

Failure to follow recommendations could result in death or serious injury.

DWARNING

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.

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RTHD-SVX02H-EN 3

Contents

Warnings, Cautions and Notices ......................2

General Information ..........................................7

Unit Identiﬁcation - Nameplates .................... 7

Figure 1. Typical Unit Nameplate .................... 7

Unit Nameplates .............................................7

Unit Inspection ................................................ 7

Inspection Checklist ........................................7

Loose Parts Inventory .....................................7

Unit Description ............................................... 8

Model Number Coding System .....................8

Unit Model Number ........................................ 8

Table 1. Model Number .................................. 8

Model Number (located on compressor

nameplate) ......................................................12

Table 2. Compressor Model Number .......... 12

Figure 2. Component Location for Typical

RTHD Unit ........................................................ 12

Figure 3. Component Location for Typical

RTHD Unit (Back View) .................................... 13

Figure 4. Component Location for Typical

RTHD Total Heat Reclaim Unit ......................... 14

Figure 5. Component Location for Typical

RTHD Total Heat Reclaim Unit (Back View) ..... 15

Figure 6. Component Location for Typical

RTHD Partial Heat Reclaim Unit ...................... 16

Figure 7. Component Location for Typical RTHD Partial Heat Reclaim Unit (Back View) .. 17

Installation Overview .....................................17

Table 3. Installation Responsibility Chart for

RTHD Units ...................................................... 18

Table 4. General Data ....................................19

Table 5. General Data ................................... 20

Table 6. General Data ................................... 21

Table 7. General Data ................................... 22

Table 8. General Data ................................... 23

Table 9. General Data ................................... 24

Installation Mechanical ...................................25

Storage ........................................................... 25

Location Requirements ................................. 25

Noise Considerations ...................................25

Foundation ....................................................25

Vibration Eliminators ....................................25

Clearances .....................................................25

Figure 8. Recommended Operating and Ser-

vice Clearances ................................................ 26

Ventilation ......................................................27

Water Drainage .............................................27

Access Restrictions .......................................27

Moving and Rigging .....................................27

Figure 9. Unit Weights and Dimensions for Rigging 28

Table 10. Unit Weight (lb(kg)) ........................ 29

Table 11. Center of Gravity(in(mm)) .............. 30

Lifting Procedure ...........................................31

Table 12. Rigging ............................................ 31

Figure 10. Lifting the Unit ................................ 33

Alternate Moving Method ............................33

Isolation Pads ................................................33

Placement Neoprene Isolator Installation

(optional) .......................................................34

Figure 11. Isolator Pad Placement................... 34

Figure 12. Oil Separator with Shipping Bracket

and Compressor Shipping Spacer ................. 35

Unit Leveling .................................................35

Water Piping .................................................. 35

Piping Connections .......................................35

Reversing Water Boxes .................................35

Figure 13. Condenser and Evaporator Water

Connections -BBB ............................................ 36

Figure 14. Condenser and Evaporator Water

Connections -BCD/CCD ................................... 37

Figure 15. Condenser and Evaporator Water

Connections - CEF ............................................ 38

Figure 16. Condenser and Evaporator Water

Connections - CDE/DDE/EDE ........................... 39

Figure 17. Condenser and Evaporator Water

Connections – CFF/DFF/EFF ............................ 40

Figure 18. Condenser and Evaporator Water

Connections - CGG/DGG/EGG ........................ 41

Figure 19. Condenser and Evaporator Water

Connections - BCH ........................................... 42

Figure 20. Condenser and Evaporator Water

Connections - CEJ ............................................ 43

Figure 21. Condenser and Evaporator Water

Connections - CFJ/DFJ ..................................... 44

Figure 22. Condenser and Evaporator Water

Connections - DGK/EGK .................................. 45

Figure 23. Condenser and Evaporator Water

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4 RTHD-SVX02H-EN

Connections - BCL ........................................... 46

Figure 24. Condenser and Evaporator Water

Connections - CEM .......................................... 47

Figure 25. Condenser and Evaporator Water

Connections - CFM/DFM ................................. 48

Figure 26. Condenser and Evaporator Water

Connections - DGN/EGN ................................. 49

Table 13. Evaporator and Condenser Data ... 50

Water Pressure Drop Data ............................ 51

Making Grooved Pipe Connections .............55

Vents and Drains ...........................................55

Evaporator Piping Components ..................55

Entering Chilled Water Piping ......................55

Leaving Chilled Water Piping .......................55

Condenser Piping Components ...................55

Entering condenser water piping ................55

Leaving condenser water piping .................55

Condenser Water Regulating Valve ..............56

Condenser Water Regulating Valve Adjust-

ment ...............................................................56

Partial Heat Recovery Condenser Tube Parts .. 56

Full Heat Recovery Condenser Tube Parts ...56

Full Heat Recovery Condenser Water Tem-

perature Requirements and Control ............57

Installation Of Water Tank Temperature Sen-

sor ..................................................................57

Water Treatment ............................................. 57

Water Pressure Gauges and Thermometers ... 57

Figure 27. Typical Thermometer, Valving, and

Manifold Pressure Gauge Set-up ................... 58

Water Pressure Relief Valves ........................58

Flow Sensing Devices ...................................58

Refrigerant Pressure Relief Valve Venting ...59

Figure 28. Relief Valve Location....................... 59

Table 14. Pressure Relief Valve Data .............. 60

Thermal Insulation ........................................ 61

Figure 29. Typical RTHD Insulation Requirements 61

Table 15. Recommended Insulation Types .... 61

Waterbox Removal and Installation ..............62

Introduction .................................................. 62

Discussion ....................................................62

Procedure .....................................................62

Figure 30. Water Box Rigging and Lifting – Ver-

tical Lift Only .................................................... 63

Reassembly ..................................................63

Table 16. RTHD Torque ................................... 63

Parts Ordering Information ........................... 63

Table 17. Connection Devices ........................ 63

Figure 31. Eyebolt connection (Safety hoist ring

M12X1.75) ......................................................... 63

Questions ......................................................64

Installation Electrical .......................................65

General Recommendations .......................... 65

Power Supply Wiring .................................... 65

Water Pump Power Supply ..........................65

Electrical Panel Power Supply .....................65

Table 18. Wire Selection Chart for Starter Panels 65

Figure 32. Electrical Installation ...................... 66

Figure 33. Handle on Door ............................... 67

Table 19. Lug Sizes ......................................... 67

Figure 34. Y-D Starter Panel Power Wire Routing 68

Figure 35. Solid State Starter Panel Power Wire Routing 69

Module Connections for Interconnecting Wir-

ing ................................................................... 70

Interconnecting Wiring (Field Wiring Re-

quired) ............................................................70

Chilled Water Pump Control .........................70

Chilled Water Flow Interlock .........................70

Condenser Water Pump Control ..................70

Condenser Water Flow Interlock ..................70

Heat Recovery Pump Control .......................71

Heat Recovery Water Flow Interlock ............71

Chilled Water Reset (CWR) ...........................71

Equations for calculating CWR ....................71

Table 20. Chiller Events/Status Descriptions 72

Table 21. Programable Relays ....................... 72

Emergency Stop ............................................72

External Auto/Stop ........................................72

Soft Loading ..................................................73

External Base Loading - Optional ................73

Base Loading Control setpoint ....................73

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RTHD-SVX02H-EN 5

Summit Interface - Optional .........................73

Operating Principles Mechanical ...................74

General ............................................................74

Refrigeration (Cooling) Cycle ........................74

Cycle Description ..........................................74

Figure 36. Pressure /Enthalpy Curve ............... 74

Figure 37. Refrigerant Flow Diagram .............. 75

Compressor Description ................................76

Figure 38. Compressor Description ................ 76

Compressor Motor ........................................77

Compressor Rotors .......................................77

Slide Valve Movement ..................................77

Oil Management System .............................. 77

Oil Separator .................................................77

Figure 39. Oil Flow Diagram ............................ 78

Oil Flow Protection .......................................78

Oil Filter .........................................................79

Compressor Bearing Oil Supply ..................79

Compressor Rotor Oil Supply ......................79

Lubricant Recovery .......................................79

Oil Cooler .......................................................79

Operator Interface Controls............................80

UC800 Overview ............................................ 80

Power Supply ...............................................80

Wiring and Port Descriptions ......................80

Figure 40. Wiring locations and connection ports 80

Communication Interfaces ..........................81

Rotary Switches ............................................81

LED Description and Operation ..................81

Figure 41. LED Locations ................................. 81

Table 22. LED Behavior .................................. 81

Controls Interface .......................................... 81

TD7 Display ...................................................81

Tracer TU ........................................................81

Tracer AdaptiView™TD7 ............................... 81

Operator Interface .........................................81

Figure 42. TD7 ................................................... 82

Main Display Area/Home Screen .................82

Figure 43. Main Screen .................................... 82

Table 23. Main Screen Items .......................... 82

Viewing Chiller Operating Modes ...............82

Figure 44. Chiller Operating Modes screen .... 82

Table 24. Operating Modes ............................ 83

Alarms ............................................................85

Viewing the Alarms Screen ..........................85

Figure 45. Alarm Screen .................................. 85

Reports ...........................................................85

Viewing the Reports Screen .........................85

Figure 46. Report Screen ................................. 85

Editing a Custom Report ..............................85

Figure 47. Edit Custom Report screen ............ 86

Figure 48. Report Evaporator Screen .............. 86

Table 25. Report Evaporator Screen Items ... 86

Figure 49. Report Condenser Screen .............. 86

Table 26. Report Condenser Screen Items .... 86

Figure 50. Report Compressor Screen ............ 87

Table 27. Report Compressor Screen Items . 87

Figure 51. Report Motor Screen ...................... 87

Table 28. Report Motor Screen Items ............ 87

Equipment Settings ......................................87

Viewing the Settings Screen ........................87

Figure 52. Setting Screen ................................. 87

Viewing and Changing Equipment Settings ... 87

Figure 53. Example equipment settings screen

(Chiller Settings shown) .................................. 88

Figure 54. Chilled Water Setpoint Screen ....... 88

Figure 55. Changed Chilled Water Setpoint Screen 88

Figure 56. Heat Reclaim Setpoint Screen ....... 88

Table 29. Settings Screen Items .................... 89

Display Settings ............................................89

Viewing the Settings Screen ........................89

Viewing and Changing Display Preferences ... 89

Figure 57. Display ReferenceScreen ............... 89

Figure 58. Data Format Page ........................... 90

Figure 59. Language Page ............................... 90

Figure 60. Date and Time screen ..................... 90

Cleaning the Display .....................................91

Figure 61. Countdown screen ......................... 91

Security Settings ...........................................91

Disabling/Enabling Security .........................91

Figure 62. Security screen ............................... 91

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6 RTHD-SVX02H-EN

Figure 63. Security screen ............................... 91

Logging In ......................................................92

Figure 64. Log In Screen .................................. 92

Logging Out ...................................................92

Figure 65. Log out conﬁrmation screen ......... 92

TracerTU ..........................................................93

Figure 66. ........................................................ 93

Unit Start-up ...................................................94

Power Up........................................................ 94

Figure 67. Sequence of operation: power up diagram 94

Figure 68. TD-7 screen displays ...................... 94

Power Up to Starting ..................................... 95

Figure 69. Power Up to Starting ...................... 95

Stopped to Starting ....................................... 95

Figure 70. Stopped to Starting ........................ 95

Limit Conditions ............................................ 96

Table 30. Limit Conditions ............................. 96

Seasonal Unit Start-Up Procedure ............... 96

Unit Shutdown ..............................................100

Normal Shutdown to Stopped ....................100

Figure 71. Normal Shutdown ........................ 100

Seasonal Unit Shutdown .............................100

Periodic Maintenance ....................................101

Overview ....................................................... 101

Weekly Maintenance and Checks ................101

Monthly Maintenance and Checks ..............101

Table 31. Operating Conditions at Full Load ....

101

Table 32. Operating Conditions at Minimum Load 101

Annual Maintenance .................................... 101

Scheduling Other Maintenance ...................102

Operating Log ...............................................102

Maintenance Procedures ..............................105

Cleaning the Condenser ..............................105

Mechanical Cleaning Procedure ................105

Chemical Cleaning Procedure ....................105

Cleaning the Evaporator ..............................105

Compressor Oil .............................................105

Table 33. POE Oil Properties ........................ 105

Oil Sump Level Check .................................105

Figure 72. Determining Oil Level in Sump ... 106

Removing Compressor Oil .........................106

Oil Charging Procedure ...............................106

Replacing the Main Oil Filter (Hot Filter) ....107

Replacing the Gas Pump Oil Filter ..............107

Figure 73. Oil Filter Replacement Chart (E,D, C

and B Frame Compressors) .......................... 10 8

Refrigerant Charge .......................................108

Evacuation and Dehydration .......................108

Refrigerant Charging ....................................108

Freeze Protection .........................................108

Table 34. Low Refrigerant Temperature, Eth-

ylene Glycol, and Freeze Protection Settings ....

109

Diagnostics .....................................................111

Table 35. Diagnostics Table .......................... 111

Wiring Schematics ........................................119

Unit Electrical Data ....................................... 119

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RTHD-SVX02H-EN 7

General Information

Unit Identication - 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

Unit Nameplates

The RTHD “unit” nameplate is applied to the exterior surface of the starter/ control panel. The “compressor” nameplate is applied to the compressor. The starter/control panel nameplate is located inside the panel.

The unit nameplate provides the following information:

• Unit model

• Unit Serial Number

• Unit device number.

»Identiﬁes unit electrical requirements

»Lists correct operating charges of HFC-134a and

refrigerant oil

»Lists unit test pressures and maximum working

pressures.

The starter/control panel nameplate provides the following information:

• Panel model number

• Rated load amps

• Voltage

• Electrical characteristics - starter type, wiring

• Options included.

The compressor nameplate provides the following information:

• Compressor model descriptor

• Compressor serial number

• Compressor device number

• Motor serial number

• Compressor electrical characteristics

• Refrigerant.

Unit Inspection

When the unit is delivered, verify that it is the correct unit and that it is properly equipped. 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 10 days after receipt.

• 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 Trane sales representative and arrange for

repair. Do not repair the unit, however, until damage is inspected by the transportation representative.

Loose Parts Inventory

Check all items against the shipping list. Water vessel drain plugs, isolation pads, rigging and electrical diagrams, service literature and the starter/control panel wire pullbox (required on some starters) are shipped unassembled in the starter control panel.

Page 8

General Information

8 RTHD-SVX02H-EN

Unit Description

The RTHD units are single compressor, helical-rotary type, water-cooled liquid chillers designed for installation indoors. Each unit is a completely assembled, hermetic package that is factory-piped, wired, leak-tested, dehydrated, charged (optional), and tested for proper control operation before shipment.

Figure 2 and Figure 3 show a typical RTHD unit and its

components. Figure 4 and Figure 5 show a typical RTHD total recovery unit and its components. Figure 6 and Figure 7 show a typical RTHD partial heat recovery unit and its components. Water inlet and outlet openings are covered before shipment. The oil tank is factory charged with the proper amount of refrigeration oil. The unit can be factory charged with refrigerant.

Model Number Coding System

The model numbers for the unit and the compressor are composed of numbers and letters that represent features of the equipment. Shown in the three tables following are samples of typical unit, compressor, and panel model numbers, followed by 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 letter “F”. An F in this position means that the unit voltage is 460/60/3.

Unit Model Number

Table 1. Model Number

Name Code M/N Digit M/N Code Description MODL 1-4 Basic product line

RTHD RTHD Water-Cooled Series R - Dev Sequence D

DCTL 5 Manufacturing Plant

WCBU U Water Chiller Business Unit, Pueblo CO USA EPL E Epinal Business Unit, Charmes FR CHIN C China Business Unit

COMP 6-7 Compressor

B1 B1 B1 compressor B2 B2 B2 compressor C1 C1 C1 compressor C2 C2 C2 compressor D1 D1 D1 compressor D2 D2 D2 compressor D3 D3 D3 compressor (50 Hz only) E3 E3 E3 compressor (50 Hz only)

VOLT 8 Unit power supply

200A A 200V/60Hz/3Ph power 230A C 230V/60Hz/3Ph power 380A D 380V/60Hz/3Ph power 380B R 380V/50Hz/3Ph power 400B T 400V/50Hz/3Ph power 415B U 415V/50Hz/3Ph power 460A F 460V/60Hz/3Ph power 575A H 575V/60Hz/3Ph power

SPEC 9 Design Specials

NONE X None ELSE C Specials denoted elsewhere NOT S Specials not denoted elsewhere

DSEQ 10-11 Design sequence

A0 A0 Factory/ABU assigned, start with A0

AGLT 12 Agency listing

NONE X No agency listing CUL U C/UL listing CCC 3 CCC- Chinese Compulsory Code

CODE 13 Pressure vessel code

ASME A ASME pressure vessel code CAN C Canadian code SQLO L Chinese code SPL S Special

Page 9

General Information

RTHD-SVX02H-EN 9

Table 1. Model Number

Name Code M/N Digit M/N Code Description EVAP 14-15 Evaporator

B1 B1 B1 evaporator B2 B2 B2 evaporator C1 C1 C1 evaporator C2 C2 C2 evaporator D1 D1 D1 evaporator D2 D2 D2 evaporator D3 D3 D3 evaporator D4 D4 D4 evaporator D5 D5 D5 evaporator D6 D6 D5 evaporator E1 E1 E1 evaporator F1 F1 F1 evaporator F2 F2 F2 evaporator G1 G1 G1 evaporator G2 G2 G2 evaporator G3 G3 G3 evaporator

EVTM 16 Evap Tube type

STD A Standard

EVWP 17 Evaporator passes

2 2 2 Pass evaporator 3 3 3 Pass evaporator 4 4 4 Pass evaporator

EVWC 18 Evaporator water connection

LH L Left hand evaporator connection RH R Right hand evaporator connection

EVCT 19 Evaporator connection type

STD A Standard grooved pipe SPEC S Special

EVPR 20 Evaporator water side pressure

LOW L 150 PSI / 10.5 Bar evaporator water pressure HIGH H 300 PSI / 21 Bar evaporator water pressure

COND 21-22 Condenser

B1 B1 B1 condenser B2 B2 B2 condenser D1 D1 D1 condenser D2 D2 D2 condenser E1 E1 E1 condenser E2 E2 E2 condenser E3 E3 E3 condenser E4 E4 E4 condenser E5 E5 E5 condenser F1 F1 F1 condenser F2 F2 F2 condenser F3 F3 F3 condenser G1 G1 G1 condenser G2 G2 G2 condenser G3 G3 G3 condenser H1 H1 H1 condenser (totalheat recovery) H2 H2 H2 condenser (totalheat recovery) J1 J1 J1 condenser (totalheat recovery) J2 J2 J2 condenser (totalheat recovery) J3 J3 J3 condenser (totalheat recovery) K1 K1 K1 condenser (totalheat recovery) L1 L1 L1 condenser (partialheat recovery) L2 L2 L2 condenser (partialheat recovery) M1 M1 M1 condenser (partialheat recovery) M2 M2 M2 condenser (partialheat recovery) M3 M3 M3 condenser (partialheat recovery) N1 N1 N1 condenser (partialheat recovery)

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General Information

10 RTHD-SVX02H-EN

Table 1. Model Number

Name Code M/N Digit M/N Code Description CDTM 23 Condenser tube type

CUFN A Enhanced n - copper SMBR B Smooth bore - copper SBCN C Smooth bore - 90/10 Cu/Ni

CDWP 24 Condenser passes

2 2 2 Pass

CDWC 25 Condenser water connection

LH L Left hand condenser connection RH R Right hand condenser connection

CDCT 26 Condenser connection type

STD A Standard grooved pipe MAR C Marine SPEC S Special

CDPR 27 Condenser water side pressure

150 L 150 PSI / 10.5 Bar condenser water pressure 300 H 300 PSI / 21 Bar condenser water pressure

CDLW 28 Condenser Leaving Water Temp

STD A Standard (<45 deg C)

VLVS 29 Refrigerant specialties

NONE X No refrigerant isolation valves VLV V Refrigerant isolation valves

OILC 30 Oil Cooler

NONE X without oil cooler OIL C with oil cooler

INSL 31 Thermal Insulation

NONE X No insulation INSC Q Factory insulation cold parts INSLS S Double insulation

SNDA 32 Sound Attenuator

NONE X No insulation INSC A Standard attenuator

LANG 33 Control,Label, and Literature Language

ENG E English CHN C Chinese

SFTY 34 Safety Devices

STD X Standard

CHRG 35 Shipping Charge

FACT A Full Factory Charge N2 B Nitrogen FACP C Refrigerant charged less than 12kg(R134a)

PCKG 36 Shipping Package

NONE X No shipping requirment SKID Z Shipment package+Unit bottom frame

FLOW 37 Flow Switch

NONE X Without EVNM A Evap NEMA-1 ECNM B Evap & Cond NEMA-1 EWP C Evap Vapor ECVP D Evap & Cond Vapor ERNM E Evap & Cond & HR Cond NEMA-1

TEST 38 Factory Performance Test

NONE X Without WIT C Witness test REP D Performance test w/report SPEC S Special

SRTY 39 Starter Type

YDEL Y Wye-delta closed transition starter SSST A Solid State starter

MRLA 40-42 Starter Type

MRLA *** Slection RLA

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General Information

RTHD-SVX02H-EN 11

Table 1. Model Number

Name Code M/N Digit M/N Code Description PCON 43 Power line connection type

TERM A Terminal block connection for incoming line(s) DISC B Mech disconnect switch CB D Circuit breaker CBHI F High interrupt circuit breaker GFCB H Ground fault circuit breaker GFHI J Ground fault high interrupt circuit breaker

ENC 44 Enclosure type

NEMA A NEMA 1

WVUO 45 Under/over voltage protection

NIST X No under/over voltage protection INST U Under/over voltage protection

OPIN 46 Unit operator interface

DVA A Dyna-View operator interface-Pueblo DVD D Dyna-View/Spanish DVG G Dyna-View/Trad.Chinese DVH H Dyna-View/Simp.Chinese DVJ J Dyna-View/Japanese DVK K Dyna-View/Portugese(Brazil) DVL L Dyna-View/Korean DVM M Dyna-View/Thai

COMM 47 Remote Interfaces (digital comm)

NIST X No remote digital comm TRM4 4 Tracer Comm 4 Interface TRM5 5 Tracer Comm 5 LCI-C (LonTalk )

SETP 48 External Chilled Water & Current Limit Setpoint

NIST X None INST 4 4-20 ma input INSA 2 2-10 Vdc input

BSLD 49 External Base Loading

NIST X None INST 4 4-20 ma input INSA 2 2-10 Vdc input

ICEB 50 Icemaking

NIST X None INST A Icemaking with relay INSA B Icemaking without relay

STAT 51 Programmable Relays

NIST X None INST R Programmable Relay

OATS 52 Chilled water reset -outdoor air temp

NIST X No Sensor (return water CHW reset standard) INST T Chilled water reset - outdoor air temp

RPOT 53 Reg. Valve & RLA

NIST X None WREG V Condenser reg. Valve out & % RLA out HPC P Condenser Pressure (%HPC) & % RLA out DELP D Chiller Delta P & %RLA out

RMTP 54 Refrigerant Monitor Input

NIST X None INST A 100 ppm / 4-20 ma INSA B 1000 ppm / 4-20 ma INSB C 100 ppm / 2-10 Vdc INSC D 1000 ppm / 2-10 Vdc

HWCT 55 Hot water Control

NIST X None INST H with hot water control

IACC 56 Installation Accessories

NONE X NONE NISO A Elastomeric lsolators

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General Information

12 RTHD-SVX02H-EN

Table 1. Model Number

Name Code M/N Digit M/N Code Description HR 57 Heat Recovery

NONE X NONE 1 1 Partial Heat recovery 2 2 Total Heat recovery

Model Number (located on compressor nameplate)

Table 2. Compressor Model Number

Selection Category M/N Digit M/N Code Description of Selection

Compressor Series 1-4 CHHC Semi-Hermetic Heli-Rotor Compressor Design Control 5 1 Pueblo Compressor Frame 6 B B Frame

C C Frame D D Frame E E Frame

Compressor Capacity 7 1 Smaller capacity (minor)

2 Larger capacity (major) 3 Special 50 Hz capacity

Motor 8 A 200V/60Hz/3

C 230V/60Hz/3 D 380V/60Hz/3 F 460V/60Hz/3 or 400V/50Hz/3 H 575V/60Hz/3

Specials 9 O No Specials

C Specials Denoted Elsewhere S Uncategorized Special not denoted elsewhere

Design Sequence 10-11 AO 1st Design (Factory Input)

Figure 2. Component Location for Typical RTHD Unit

TD7 Interface

quid Level

Senso

Gas Pump

Evaporator Water Outlet

Condenser Water Outlet

Condenser Water Inlet

Starter/Control Panel

Evaporator

Oil Separator

Relief Valves

Oil Sump

Page 13

General Information

RTHD-SVX02H-EN 13

Figure 3. Component Location for Typical RTHD Unit (Back View)

Oil Separators

EXVs

Relief Valves

Service Valves (With Refrigerant Isolation Valve Option Only)

Oil Sump (The oil distribution system is located between the condenser and the evaporator.)

Condenser

Evaporator Water Inlet

Unit Nameplate (On side of starter/control pa

Compressor

Discharge Line

Oil Filter (Cold) Hot Oil Filter is hidden from view.

Page 14

General Information

14 RTHD-SVX02H-EN

Figure 4. Component Location for Typical RTHD Total Heat Reclaim Unit

TD7 Interface

Oil Separator

Relief Valves

Oil Sump

Starter/Control Panel

Evaporator

Liquid Level Sensor

Gas Pump

Evaporator Water Outlet

Page 15

General Information

RTHD-SVX02H-EN 15

Figure 5. Component Location for Typical RTHD Total Heat Reclaim Unit (Back View)

Oil Separator

Compressor

Unit Nameplate (On side of starter/ control pane

Discharge Line

Evaporator Water Inlet

Standard Condenser Water Inlet

Total Heat Reclaim Condenser Water Inlet

Total Heat Reclaim Condenser Water Outlet

Oil Sump (The oil distribution system is located between the condenser and the evaporator.)

Service Valves (With Refrigerant Isolation Valve Option Only)

Standard Condenser Water Outlet

EXVs

Relief Valves

Oil Filter (Cold)

Hot Oil Filter is hidden

from view.

Standard/Total Heat Reclaim Condenser

Page 16

General Information

16 RTHD-SVX02H-EN

Figure 6. Component Location for Typical RTHD Partial Heat Reclaim Unit

TD7 Interface

Oil Separator

Relief Valves

Oil Sump

Starter/Control Panel

Evaporator

Liquid Level Sensor

Gas Pump

Evaporator Water Outlet

Page 17

General Information

RTHD-SVX02H-EN 17

Installation Overview

For convenience, Table 3 summarizes responsibilities that are typically associated with the RTHD chiller installation process.

Figure 7. Component Location for Typical RTHD Partial Heat Reclaim Unit (Back View)

Oil Separator

Compressor

Unit Nameplate (On side of starter/ control pane

Discharge Line

Evaporator Water Inlet

Standard Condenser Water Inlet

Partial Heat Reclaim Condenser Water Inlet

Partial Heat Reclaim Condenser Water Outlet

Oil Sump (The oil distribution system is located between the condenser and the evaporator.)

Service Valves (With Refrigerant Isolation Valve Option Only)

Standard Condenser Water Outlet

EXVs

Relief Valves

Oil Filter (Cold)

Hot Oil Filter is hidden

from view.

Standard/Partial Heat Reclaim Condenser

Page 18

General Information

18 RTHD-SVX02H-EN

Table 3. Installation Responsibility Chart for RTHD Units

Requirement

Trane-supplied, Trane-installed

Trane-supplied, Field-installed

Field-supplied, Field-installed

• Rigging • Safety chains

• Clevis connectors - Lifting beam

• Isolation • Isolation pads

• Elastomeric Isolators (option)

• Isolation pads

• Elastomeric Isolators (option)

• Electrical • Circuit breakers or non-fused

disconnects (optional)

• Unit-mounted starter

• Circuit breaker or non-fused dis-

connect handle

• Temperature sensor (optional outdoor air)

• Flow switches (may be eldsuplied)

• Condenser water regulating valve controller (optional: may be el-

supplied)

• Circuit breakers or fusible disconnects (optional)

• Terminal lugs

• Ground connection(s)

• Jumper bars

• BAS wiring (optional)

• IPC wiring

• Control voltage wiring

• High condenser pressure interlock

wiring

• Chilled water pump contactor and wiring

• Condenser water pump contactor and wiring

• Optional relays and wiring

• Water piping • Flow switches (may be eldsup-

plied)

• Condenser water regulating valve controller (optional: may be eld-

supplied)

• Thermometers

• Water ow pressure gauges

• Isolation and balancing valves water

piping

• Vents and drain valves

• Pressure relief valves (for water

boxes as required)

• Pressure Relief • Relief valves • Vent line and exible connector

• Insulation • Insulation (optional) • Insulation

Refer to the Installation Mechanical and Installation Electrical sections of this manual for detailed installation instructions.

• Locate and maintain the loose parts, e.g. isolators, temperature sensors, ﬂow sensors or other factory-ordered, ﬁeld-installed options, for installation, as required. Loose parts are located in the starter/control panel.

• Install the unit on a foundation with ﬂat support surfaces, level within 1/4” (6.35 mm) and of sufﬁcient strength to support concentrated loading. Place the manufacturer-supplied isolation pad assemblies under the unit.

• Install the unit per the instructions outlined in the Mechanical Installation section.

• Complete all water piping and electrical connections.

Note: Field piping must be arranged and supported

to avoid stress on the equipment. It is strongly recommended that the piping contractor provide at least 3 feet (914 mm) of clearance between the pre-installation piping and the planned location of the unit. This will allow for proper ﬁt-up upon arrival of the unit at the installation site. All necessary piping adjustments can be made at that time. Refer to the current engineering bulletin for further details on installation.

• Where speciﬁed, supply and install valves in the water piping upstream and downstream of the evaporator and condenser water boxes, to isolate the shells for maintenance and to balance/trim the system.

• Supply and install condenser water control valve(s) per Trane Engineering Bulletin -Water Cooled Series R® Condenser Water Contol.

• Supply and install ﬂow switches or equivalent devices in both the chilled water and condenser water piping. Interlock each switch with the proper pump starter and UC800, to ensure that the unit can only operate when water ﬂow is established.

• Supply and install taps for thermometers and pressure gauges in the water piping, adjacent to the inlet and outlet connections of both the evaporator and the condenser.

• Supply and install drain valves on each water box.

• Supply and install vent cocks on each water box.

• Where speciﬁed, supply and install strainers ahead

of all pumps and automatic modulating valves.

• Supply and install refrigerant pressure relief piping from the pressure relief to the atmosphere.

• If necessary, supply enough HCFC-134 refrigerant and dry nitrogen (75 psig) for pressure testing.

• Start the unit under supervision of a qualiﬁed service

Page 19

General Information

RTHD-SVX02H-EN 19

technician.

• Where speciﬁed, supply and insulate the evaporator and any other portion of the unit, as required, to prevent sweating under normal operating conditions.

• For unit-mounted starters, cutouts are provided at the top of the panel for line-side wiring.

Table 4. General Data

Unit Designator (corresponds to digits 6, 7, 14, 15, 21, 22 of unit model number)

D1D1E1 D1F1F2 D1G1G1 D1G2G2 D2D2E2 D2F2F3 D2G3G3 /

D3G3G3

General

Refrigerant Type HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a Refrigerant Charge

(lb (kg))

473

(215)

623

(283)

700

(318)

700

(318)

473

(215)

623

(283)

700

(318)

Oil Charge (gal(l))

(23)

(38)

(42)

(23)

(38)

(42)

Operating Weight (lb(kg))

15385

(6978)

17537

(7955)

20500

(9299)

21065

(9555)

15570

(7063)

18220

(8265)

21641

(9816)

Shipping Weight (lb(kg))

14443

(6551)

16187

(7342)

18600

(8437)

19107

(8667)

14562

(6605)

16820

(7630)

19508

(8849)

Overall Dimensions

Length (in(mm))

130

(3313)

147

(3736)

149

(3774)

149

(3774)

130

(3313)

147

(3736)

149

(3774)

Width (in(mm))

(1717)

(1771)

(1717)

(1771)

Height (in(mm))

(1937)

(2033)

(1937)

(2033)

Evaporator

Water Storage (gal (l))

(261)

102

(386)

136

(515)

144

(545)

(280)

107

(405)

159

(602)

Minimum Flow (gpm (l/s)) Water

415 (26)

for 2-pass

563 (36)

2-pass

505 (35)

3 pass

505 (35)

for 3-pass

450 (28)

for 2-pass

604 (38)

for 2-pass

622 (39)

for 3-pass

275 (17)

for 3-pass

376 (24)

3-pass

379 (24)

4 pass

411 (26)

for 4-pass

300 (20)

for 3-pass

404 (25)

for 3-pass

466 (29)

for 4-pass

Minimum Flow (gpm (l/s))Brine

498 (31)

for 2-pass

676 (43)

2-pass

606 (38)

3 pass

660 (42)

for 3-pass

541 (34)

for 2-pass

725 (46)

for 2-pass

747 (47)

for 3-pass

330 (21)

for 3-pass

454 (29)

3-pass

454 (29)

4 pass

492 (31)

for 4-pass

357 (23)

for 3-pass

487 (31)

for 3-pass

557 (35)

for 4-pass

Maximum Flow (gpm (l/s))

1812 (114)

for 2-pass

2478 (156)

for 2-pass

2218 (139)

3 pass

2413 (152)

for 3-pass

1980 (125)

for 2-pass

2667 (168)

for 2-pass

2732 (172)

for 3-pass

1206 (76) for 3-pass

1655 (104)

for 3-pass

1666 (104)

4 pass

1807 (114)

for 4-pass

1320 (83) for 3-pass

1780 (112)

for 3-pass

2050 (129)

for 4-pass

Condenser (all are 2-pass)

Water Storage (gal (l))

(166)

(216)

(299)

(344)

(178)

(231)

(367)

Minimum Flow (gpm (l/s))Water

291

(18)

355

(22)

444

(28)

535

(34)

316

(20)

385

(24)

589

(37)

Minimum Flow (gpm (l/s))Brine

350

(22)

430

(27)

530

(33)

650

(41)

380

(24)

460

(29)

710

(45)

Max Flow (gpm (l/s))

1280

(81)

1560

(98)

1960

(124)

2360

(149)

1390

(88)

1700

(107)

2600

(164)

All weights ±3%, include standard 150 psig water boxes. Operating weights include refrigerant, oil, and water charges. If oil cooler is installed, add 1/4 gal (1 liter) to the oil charge value given for B family units; add 1.0 gal (4 liters) for all other units. Overall dimensions are based on 3-pass evap/2 congurations pass cond and LH/RH water connections. Refer to TOPSS for exact job congurations.

• Supply and install the wire terminal lugs to the starter.

• Supply and install ﬁeld wiring to the line-side lugs of the starter.

Page 20

General Information

20 RTHD-SVX02H-EN

Table 5. General Data

Unit Designator (corresponds to digits 6, 7, 14, 15, 21, 22 of unit model number)

D2G2G1 D3D2E2 D3F2F3 D3G2G1 E3D2E2 E3F2F3 E3G2G1

General

Refrigerant Type HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a Refrigerant Charge

(lb (kg))

700

(318)

473

(215)

623

(283)

700

(318)

473

(215)

623

(283)

700

(318)

Oil Charge (gal(l))

(42)

(23)

(38)

(42)

(23)

(38)

Operating Weight (lb(kg))

20700

(9389)

15570

(7063)

18220

(8265)

20700

(9389)

15728

(7134)

18356

(8326)

20800

(9435)

Shipping Weight (lb(kg))

18700

(8482)

14562

(6605)

16820

(7630)

18700

(8482)

14720

(6677)

16956

(7695)

18800

(8552)

Overall Dimensions

Length (in(mm))

149

(3774)

130

(3313)

147

(3736)

149

(3774)

130

(3313)

147

(3736)

149

(3774)

Width (in(mm))

(1771)

(1717)

(1771)

(1717)

(1771)

Height (in(mm))

(2033)

(1937)

(2033)

(1937)

(2033)

Evaporator

Water Storage (gal (l))

144

(545)

(280)

107

(405)

144

(545)

(280)

107

(405)

144

(545)

Minimum Flow (gpm (l/s)) Water

550 (35)

3-pass

405 (28) for

2-pass

604 (38)

2-pass

550 (35)

3-pass

405 (28)

2-pass

604 (38)

2-pass

550 (35)

3-pass

411 (26)

4-pass

300 (19) for

3-pass

404 (25)

3-pass

411 (26)

4-pass

300 (19)

3-pass

404 (25)

3-pass

411 (26)

4-pass

Minimum Flow (gpm (l/s))Brine

660 (42)

3-pass

541 (34) for

2-pass

725 (46)

2-pass

660 (42)

3-pass

541 (34)

2-pass

725 (46)

2-pass

660 (42)

3-pass

492 (31)

4-pass

357 (23) for

3-pass

487 (31)

3-pass

492 (31)

4-pass

357 (23)

3-pass

487 (31)

3-pass

492 (31)

4-pass

Maximum Flow (gpm (l/s))

2413 (152)

for 3-pass

1980 (125)

for 2-pass

2667 (168)

for 2-pass

2413 (152)

for 3-pass

1980 (125)

2-pass

2667 (168)

for 2-pass

2413 (152)

for 3-pass

1807 (114)

for 4-pass

1320 (83) for 3-pass

1780 (112)

for 3-pass

1807 (114)

for 4-pass

1320 (83) for 3-pass

1780 (112)

for 3-pass

1807 (114)

for 4-pass

Condenser (all are 2-pass)

Water Storage (gal (l))

(299)

(178)

(231)

(299)

(178)

(231)

(299)

Minimum Flow (gpm (l/s))Water

444

(28)

316

(20)

355

(22)

444

(28)

316

(20)

355

(22)

444

(28)

Minimum Flow (gpm (l/s))Brine

530

(33)

380

(24)

460

(29)

530

(33)

380

(24)

460

(29)

530

(33)

Max Flow (gpm (l/s))

1960

(124)

1390

(88)

1700

(107)

1960

(124)

1390

(88)

1700

(107)

1960

(124)

Overall dimensions are based on 3-pass evap/2 pass cond and LH/RH water connections. Refer to TOPSS for exact job congurations.

Page 21

General Information

RTHD-SVX02H-EN 21

Table 6. General Data

Unit Designator (corresponds to digits 6, 7, 14, 15, 21, 22 of unit model number)

C1C2D2 C1D6E5 C1D5E4 C1D3E3 C1E1F1 C2D4E4 C2D3E3

General

Refrigerant Type HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a Refrigerant Charge

(lb (kg))

490

(222)

490

(222)

490

(222)

490

(222)

525

(238)

490

(222)

490

(222)

Oil Charge (gal(l))

(23)

(38)

(23)

Operating Weight (lb(kg))

12460

(5652)

13397

(6077)

13673

(6202)

15044

(6824)

15818

(7175)

13672

(6202)

15044

(6824)

Shipping Weight (lb(kg))

11735

(5334)

12780

(5797)

12973

(5885)

14002

(6351)

14718

(6675)

12972

(5884)

14002

(6351)

Overall Dimensions

Length (in(mm))

145

(3674)

130

(3313)

130

(3313)

130

(3313)

146

(3712)

130

(3313)

130

(3313)

Width (in(mm))

(1695)

(1717)

Height (in(mm))

(1870)

(1937)

Evaporator

Water Storage (gal (l))

(220)

(170)

(197)

(295)

(311)

(197)

(295)

Minimum Flow (gpm (l/s)) Water

347 (22) for

2-pass

293 (18) for

2-pass

351 (21) for

2-pass

465 (31) for

2-pass

450 (28) for

2-pass

351 (21) for

2-pass

465 (31) for

2-pass

232 (15) for

3-pass

196 (12) for

3-pass

234 (15) or

3-pass

324 (20) or

3-pass

300 (19) for

3-pass

234 (15) or

3-pass

324 (20) for

3-pass

Minimum Flow (gpm (l/s))Brine

375 (24) for

2-pass

352 (22) for

2-pass

422 (27) for

2-pass

584 (37) for

2-pass

487 (31) for

2-pass

422 (27) for

2-pass

584 (37) for

2-pass

276 (17) for

3-pass

233 (15) for

3-pass

281 (18) or

3-pass

389 (25) or

3-pass

357 (23) for

3-pass

281 (18) for

3-pass

389 (25) for

3-pass

Maximum Flow (gpm (l/s))

1531 (97) for

2-pass

1287 (81) for

2-pass

1542 (97)or

2-pass

2131 (134)or

2-pass

1980 (125)

for

2-pass

1542 (97) for

2-pass

2131 (134)

for

2-pass

1022 (150)

for

3-pass

860 (54) for

3-pass

1028 (65) or

3-pass

1417 (89) or

3-pass

1320 (83) for

3-pass

1028 (65) for

3-pass

1417 (89) for

3-pass

Condenser (all are 2-pass)

Water Storage (gal (l))

(129)

(110)

(121)

(178)

(226)

(121)

(178)

Minimum Flow (gpm (l/s))Water

212

(13)

206

(13)

245

(15)

325

(21)

375

(24)

245

(15)

325

(21)

Minimum Flow (gpm (l/s))Brine

255

(16)

250

(16)

295

(19)

390

(25)

450

(28)

295

(19)

390

(25)

Max Flow (gpm (l/s))

935

(59)

910

(57)

1080

(68)

1420

(90)

1650

(104)

1080

(68)

1420

(90)

Page 22

General Information

22 RTHD-SVX02H-EN

Table 7. General Data

Unit Designator (corresponds to digits 6, 7, 14, 15, 21, 22 of unit model number)

C2E1F1 C2F2F3 B1B1B1 B1C1D1 B2B2B2 B2C2D2

General

Refrigerant Type HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a Refrigerant Charge

(lb (kg))

525

(238)

700

(318)

410

(186)

490

(222)

410

(186)

490

(222)

Oil Charge (gal(l))

(38)

(42)

4.5

(17.0)

4.5

(17.0)

4.5

(17.0)

4.5

(17.0)

Operating Weight (lb(kg))

15818

(7175)

17560 (7965)

9867

(4476)

10554 (4787)

10019 (4544)

10653

(4832)

Shipping Weight (lb(kg))

14718

(6675)

16168 (7334)

9292

(4215)

9837

(4462)

9402

(4265)

9953

(4515)

Overall Dimensions

Length (in(mm))

146

(3712)

147

(3736)

126

(3210)

145

(3674)

126

(3210)

145

(3674)

Width (in(mm))

(1717)

(1634)

Height (in(mm))

(1937)

(1849)

Evaporator

Water Storage (gal (l))

(311)

107

(405)

(155)

(208)

(170)

(220)

Minimum Flow (gpm (l/s)) Water

450 (28) for

2-pass

604 (38) for

2-pass

253 (16) for

2-pass

320 (18) for

2-pass

288 (22) for

2-pass

347 (22) for

2-pass

300 (19) for

3-pass

404 (25) for

3-pass

168 (11) for

3-pass

213 (12) for

3-pass

192 (15) for

3-pass

232 (15) for

3-pass

Minimum Flow (gpm (l/s))Brine

487 (31) for

2-pass

725 (46) for

2-pass

303 (19) for

2-pass

346 (22) for

2-pass

346 (22) for

2-pass

375 (24) for

2-pass

357 (23) for

3-pass

487 (31) for

3-pass

200 (13) for

3-pass

254 (16) for

3-pass

233 (15) for

3-pass

276 (17) for

3-pass

Maximum Flow (gpm (l/s))

1980 (152)

for 2-pass

2667 (168)

for 2-pass

1104 (70) for

2-pass

1412 (89) for

2-pass

1266 (80) for

2-pass

1531 (97) for

2-pass

1320 (83) for 3-pass

1780 (112)

for 3-pass

736 (46) for

3-pass

941 (59) for

3-pass

844 (53) for

3-pass

1022 (65) for

3-pass

Condenser (all are 2-pass)

Water Storage (gal (l))

(226)

(231)

(106)

(117)

(110)

(129)

Minimum Flow (gpm (l/s))Water

357

(24)

355

(22)

193

(12)

193

(12)

212

(13)

212

(13)

Minimum Flow (gpm (l/s))Brine

450

(28)

460

(29)

230

(15)

230

(15)

255

(16)

255

(16)

Max Flow (gpm (l/s))

1650

(104)

1700

(107)

850

(54)

850

(54)

935

(59)

935

(59)

Overall dimensions are based on 3-pass evap/2 pass cond and LH/RH water connections. Refer to TOPSS for exact job congurations.

Page 23

General Information

RTHD-SVX02H-EN 23

Table 8. General Data

Unit Designator (corresponds to digits 6, 7, 14, 15, 21, 22 of unit model number)

B1C1H1 B2C2H2 C1E1J1 C2F2J3 D1F1J2 D2G2K1 D3G2K1 E3G2K1

General

Refrigerant Type HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a Refrigerant Charge

(lb (kg))

567

(257)

567

(257)

646

(293)

746

(338.5)

745

(338)

789

(358)

789

(358)

789

(358)

Oil Charge (gal(l))

7.5

(28.0)

7.5

(28.0)

(42)

(45)

(42)

13.5 (51)

Operating Weight (lb(kg))

12413 (5626)

12570

(5697)

19322

(8757)

21014

(9524)

21046

(9538)

24188

(10962)

24188

(10962)

24290

(11008)

Shipping Weight (lb(kg))

11180 (5067)

11363

(5150)

17365

(7870)

18830

(8534)

18792

(8517)

21363 (9682)

21363

(9682)

21465

(9728)

Overall Dimensions

Length (in(mm))

157

(3995)

157

(3995)

157

(3996)

158

(4007)

158

(4007)

160

(4062)

160

(4062)

160

(4062)

Width (in(mm))

(1830)

(1953)

(1960)

Height (in(mm))

(1919)

(2078)

(2061)

Evaporator

Water Storage (gal (l))

(208)

(220)

(311)

107

(405)

102

(386)

144

(545)

144

(545)

144

(545)

Minimum Flow (gpm (l/s)) Water

320(18)

2 -pass

347(22)

2 -pass

450(28)

2 -pass

604(38)

2 -pass

563(36)

2 -pass

550(35)

3 -pass

550(35)

3 -pass

550(35)

3 -pass

213(12)

3 -pass

232(15)

3 -pass

300(19)

3 -pass

404(25)

3 -pass

376(24)

3 -pass

411(26)

4 -pass

411(26)

4 -pass

411(26)

4 -pass

Minimum Flow (gpm (l/s))Brine

346(22)

2 -pass

375(24)

2 -pass

487(31)

2 -pass

725(46)

2 -pass

676(43)

2 -pass

660(42)

3 -pass

660(42)

3 -pass

660(42)

3 -pass

254(16)

3 -pass

276(17)

3 -pass

357(23)

3 -pass

487(31)

3 -pass

454(29)

3 -pass

492(31)

4 -pass

492(31)

4 -pass

492(31)

4 -pass

Maximum Flow (gpm (l/s))

1412(89)

2 -pass

1531(97)

2 -pass

1980(152)

2 -pass

2667(168)

2 -pass

2478(156)

2 -pass

2413(152)

3 -pass

2413(152)

3 -pass

2413(152)

3 -pass

941(59)

3 -pass

1022(65)

3 -pass

1320(83)

3 -pass

1780(112)

3 -pass

1655(104)

3 -pass

1807(114)

4 -pass

1807(114)

4 -pass

1807(114)

4 -pass

Condenser (Main condensation side waterway)

Water Storage (gal (l))

(158)

(162)

(279)

(267)

(285)

(316)

Minimum Flow (gpm (l/s))Water

190

(12)

206

(13)

380

(24)

349

(22)

349

(22)

444

(28)

444

(28)

444

(28)

Minimum Flow (gpm (l/s))Brine

238

(15)

254

(16)

444

(28)

460

(29)

428

(27)

523

(33)

523

(33)

523

(33)

Max Flow (gpm (l/s))

856

(54)

935

(59)

1649

(104)

1696

(107)

1554

(98)

1966

(124)

1966

(124)

1966

(124)

Condenser (Full heat recovery side channel)

Water Storage (gal (l))

(158)

(162)

(279)

(267)

(285)

(316)

Minimum Flow (gpm (l/s))Water

190

(12)

206

(13)

380

(24)

349

(22)

349

(22)

444

(28)

444

(28)

444

(28)

Minimum Flow (gpm (l/s))Brine

238

(15)

254

(16)

444

(28)

460

(29)

428

(27)

523

(33)

523

(33)

523

(33)

Max Flow (gpm (l/s))

856

(54)

935

(59)

1649

(104)

1696

(107)

1554

(98)

1966

(124)

1966

(124)

1966

(124)

Overall dimensions are based on 3-pass evap/2 pass cond and LH/RH water connections. Refer to TOPSS for exact job congurations.

Page 24

General Information

24 RTHD-SVX02H-EN

Table 9. General Data

Unit Designator (corresponds to digits 6, 7, 14, 15, 21, 22 of unit model number)

B1C1L1 B2C2L2 C1E1M1 C2F2M3 D1F1M2 D2G2N1 D3G2N1 E3G2N1

General

Refrigerant Type HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a HFC-134a Refrigerant Charge

(lb (kg))

490

(222)

490

(222)

545

(247)

645

(292.5)

644

(292)

725

(329)

725

(329)

725

(329)

Oil Charge (gal(l))

7.5

(28.0)

7.5

(28.0)

(42)

(45)

(42)

13.5 (51)

Operating Weight (lb(kg))

11259 (5102)

11360

(5148)

17040

(7723)

18737

(8492)

18790

(8516)

22597

(10241)

22597

(10241)

22698

(10287)

Shipping Weight (lb(kg))

10298 (4667)

10426

(4725)

15556

(7050)

17010

(7709)

17017

(7712)

20205 (9157)

20205

(9157)

20306

(9203)

Overall Dimensions

Length (in(mm))

150

(3815)

150

(3815)

149

(3780)

149

(3780)

149

(3780)

161

(4085)

161

(4085)

161

(4085)

Width (in(mm))

(1701)

(1814)

(1821)

(1925)

Height (in(mm))

(1892)

(1949)

(2002)

Evaporator

Water Storage (gal (l))

(208)

(220)

(311)

107

(405)

102

(386)

144

(545)

144

(545)

144

(545)

Minimum Flow (gpm (l/s)) Water

320(18)

2 -pass

347(22)

2 -pass

450(28)

2 -pass

604(38)

2 -pass

563(36)

2 -pass

550(35)

3 -pass

550(35)

3 -pass

550(35)

3 -pass

213(12)

3 -pass

232(15)

3 -pass

300(19)

3 -pass

404(25)

3 -pass

376(24)

3 -pass

411(26)

4 -pass

411(26)

4 -pass

411(26)

4 -pass

Minimum Flow (gpm (l/s))Brine

346(22)

2 -pass

375(24)

2 -pass

487(31)

2 -pass

725(46)

2 -pass

676(43)

2 -pass

660(42)

3 -pass

660(42)

3 -pass

660(42)

3 -pass

254(16)

3 -pass

276(17)

3 -pass

357(23)

3 -pass

487(31)

3 -pass

454(29)

3 -pass

492(31)

4 -pass

492(31)

4 -pass

492(31)

4 -pass

Maximum Flow (gpm (l/s))

1412(89)

2 -pass

1531(97)

2 -pass

1980(152)

2 -pass

2667(168)

2 -pass

2478(156)

2 -pass

2413(152)

3 -pass

2413(152)

3 -pass

2413(152)

3 -pass

941(59)

3 -pass

1022(65)

3 -pass

1320(83)

3 -pass

1780(112)

3 -pass

1655(104)

3 -pass

1807(114)

4 -pass

1807(114)

4 -pass

1807(114)

4 -pass

Condenser (Main condensation side waterway)

Water Storage (gal (l))

(156)

(160)

(274)

(262)

(279)

(340)

Minimum Flow (gpm (l/s))Water

190

(12)

206

(13)

380

(24)

349

(22)

349

(22)

444

(28)

444

(28)

444

(28)

Minimum Flow (gpm (l/s))Brine

238

(15)

254

(16)

444

(28)

460

(29)

428

(27)

523

(33)

523

(33)

523

(33)

Max Flow (gpm (l/s))

856

(54)

935

(59)

1649

(104)

1696

(107)

1554

(98)

1966

(124)

1966

(124)

1966

(124)

Condenser (Full heat recovery side channel)

Water Storage (gal (l))

(71)

(75)

(116)

(112)

(119)

(125)

Minimum Flow (gpm (l/s))Water

(5)

133

(8)

123

(8)

124

(8)

158

(10)

158

(10)

158

(10)

Minimum Flow (gpm (l/s))Brine

(5)

(6)

155

(10)

162

(10)

152

(10)

187

(12)

187

(12)

187

(12)

Max Flow (gpm (l/s))

304

(19)

304

(19)

476

(30)

491

(31)

476

(30)

491

(31)

491

(31)

491

(31)

Overall dimensions are based on 3-pass evap/2 pass cond and LH/RH water connections. Refer to TOPSS for exact job congurations.

Page 25

RTHD-SVX02H-EN 25

Installation Mechanical

Storage

If the chiller is to be stored more than one month prior to installation, observe the following precautions:

• Do not remove the protective coverings from the electrical panel.

• Store the chiller in a dry, vibration-free, secure area.

• At least every three months, attach a gauge and man-

ually check the pressure in the refrigerant circuit. If the refrigerant pressure is below 71 psig at 70oF (or 46 psig at 50oF), call a qualiﬁed service organization and the appropriate Trane sales ofﬁce.

Note: Pressure will be approximately 20 psig if shipped

with the optional nitrogen charge.

Location Requirements

Noise Considerations

• Refer to Trane Engineering Bulletin -Series R® Chiller Sound Ratings and Installation Guide.

for sound consideration applications.

• Locate the unit away from sound-sensitive areas.

• Install the isolation pads under the unit. Refer to “Unit

Isolation.”

• Install rubber vibration isolators in all water piping.

• Use ﬂexible electrical conduit for ﬁnal connection to

the UC800.

•Sealallwallpenetrations.

Note: Consult an acoustical engineer for critical applica-

tions.

Foundation

Provide rigid, non-warping mounting pads or a concrete foundation of sufﬁcient strength and mass to support the chiller operating weight (including completed piping and full operating charges of refrigerant, oil and water).

Refer to Table 10 for unit operating weights.

Once in place, level the chiller within 1/4” (6.35 mm) over its length and width.

The Trane Company is not responsible for equipment problems resulting from an improperly designed or constructed foundation.

Vibration Eliminators

• Provide rubber boot type isolators for all water piping at the unit.

• Provide ﬂexible conduit for electrical connections to the unit.

• Isolate all pipe hangers and be sure they are not supported by main structure beams that could introduce vibration into occupied spaces.

• Make sure that the piping does not put additional stress on the unit.

Note: Do not use metal braided type eliminators on the

water piping. Metal braided eliminators are not effective at the frequencies at which the unit will operate.

Clearances

Provide enough space around the unit to allow the installation and maintenance personnel unrestricted access to all service points. Refer to submittal drawings for the unit dimensions.

Allow adequate clearance for condenser and compressor servicing. A minimum of three feet is recommended for compressor service and to provide sufﬁcient clearance for the opening of control panel doors. Refer to Figure

8 for minimum clearances required for condenser tube

service. In all cases, local codes will take precedence over these recommendations.

Note: Required vertical clearance above the unit is 36”

(914.4 mm). There should be no piping or conduit located over the compressor motor.

If the room conﬁguration requires a variance to the clearance dimensions, contact your Trane sales ofﬁce representative.

Page 26

Installation Mechanical

26 RTHD-SVX02H-EN

Figure 8. Recommended Operating and Service Clearances

3'-0" (914 mm) Service C learance

3'-0" (914 mm)

Service Cl earance

26.4" (671 mm ) Radius

36.5" (927 mm) Radius

105

Swing

3'-0" (914 mm) Service Cl earance (Opposite Tube Removal)

3'-0" (914 mm) Service C learance

Tube Removal

Clearance (Either End)

EDE, D DE, CDE, BBB:

108" (2743 mm)

EFF, DFF, CFF,CEF, BCD: 1

26" (3200 mm)

EGG, DGG

30" (3302 mm)

Page 27

Installation Mechanical

RTHD-SVX02H-EN 27

Note: Maximum clearances are given. Depending on

the unit conﬁguration, some units may require less clearance than others in the same category.

Ventilation

The unit produces heat even though the compressor is cooled by the refrigerant. Make provisions to remove heat generated by unit operation from the equipment room. Ventilation must be adequate to maintain an ambient temperature lower than 122°F (50°C).

Vent the evaporator, condenser and compressor pressure relief valves in accordance with all local and national codes. Refer to Table 12.

Make provisions in the equipment room to keep the chiller from being exposed to freezing temperatures (32°F/0°C).

Water Drainage

Locate the unit near a large capacity drain for water vessel drain-down during shutdown or repair. Condensers and evaporators are provided with drain connections. Refer to “Water Piping.” All local and national codes ap-

ply.

Access Restrictions

Door clearances for the RTHD units are given in Figure

9 . Refer to the unit submittals for speciﬁc “per unit”

dimensional information.

Moving and Rigging

The Model RTHD chiller should be moved by lifting at designated lift points only. Refer to Figure 10 and Table

10 for typical unit lifting and operating weights. Refer to

the rigging diagram that ships with each unit for speciﬁc “per unit” weight data.

DWARNING

Heavy Equipment!

Always use lifting equipment with a capacity exceeding unit lifting weight by an adequate safety factor. (+10%). Follow the procedures and diagrams in this manual and in the submittal. Failure to do so can result in death or serious injury.

Page 28

Installation Mechanical

28 RTHD-SVX02H-EN

Figure 9. Unit Weights and Dimensions for Rigging

=C.G.

Page 29

Installation Mechanical

RTHD-SVX02H-EN 29

Table 10. Unit Weight (lb(kg))

Location (points)

Unit Designator* A B C D

E3G2G1 5158 4304 4226 5300

(2340) (1952) (1917) (2404)

E3F2F3 4781 3582 3750 4851

(2169) (1625) (1701) (2200)

E3D2E2 3796 2834 3300 4789

(1722) (1285) (1497) (2172)

D3G3G3 5320 4451 4327 5140

(2413) (2019) (1963) (2331)

D3G2G1 5085 4255 4136 5171

(2307) (1930) (1876) (2346)

D3F2F3 4737 3563 3722 4797

(2149) (1616) (1688) (2176)

D3D2E2 3754 2818 3269 4720

(1703) (1278) (1483) (2141)

D2G3G3 5320 4451 4327 5140

(2413) (2019) (1963) (2331)

D2G2G1 5085 4255 4136 5171

(2307) (1930) (1876) (2346)

D2F2F3 4737 3563 3722 4797

(2149) (1616) (2176) (2176)

D2D2E2 3754 2818 3269 4720

(1703) (1278) (1483) (2141)

D1G1G1 4981 4148 4041 5076

(2259) (1882) (1833) (2302)

D1G2G2 5216 4344 4231 5316

(2366) (1970) (1919) (2411)

D1F1F2 4526 3452 3615 4594

(2053) (1566) (1640) (2084)

D1D1E1 3728 2758 3236 4694

(1691) (1251) (1468) (2129)

C2F2F3 4649 3496 4707 4707

2109 1586 2135 2135

C2E1F1 4205 3046 3196 4271

(1907) (1382) (1450) (1937)

C2D3E3 3612 2738 3148 4503

(1638) (1242) (1428) (2043)

C2D4E4 3374 2479 2876 4243

(1530) (1124) (1305) (1925)

C1E1F1 4205 3046 3196 4271

(1907) (1382) (1450) (1937)

C1D3E3 3612 2738 3148 4503

(1638) (1242) (1428) (2043)

C1D5E4 3375 2479 2876 4243

(1531) (1124) (1305) (1925)

C1D6E5 3330 2430 2825 4195

(1510) (1102) (1281) (1903)

C1C2D2 3946 2606 2055 3322

(1790) (1182) (932) (1507)

B2C2D2 3162 2297 1767 2726

(1510) (1042) (802) (1237)

B2B2B2 2522 1996 1926 2958

(1144) (905) (874) (1342)

B1C1D1 3136 2264 1739 2698

(1422) (1027) (789) (1224)

B1B1B1 2495 1969 1901 2928

(1132) (893) (862) (1328)

* Unit Designator (corresponds to digits 6,7,14,15,21,22 of unit

model number)

Location (points)

Unit Designator* A B C D

Total Heat Reclaim

B1C1H1 3430 2429 2255 3062

(1556) (1102) (1023) (1389)

B2C2H2 3463 2485 2315 3102

(1571) (1127) (1050) (1407)

C1E1J1 4819 3721 3858 4965

(2186) (1688) (1750) (2252)

C2F2J3 5165 4087 4246 5333

(2343) (1854) (1926) (2419)

D1F1J2 5161 4068 4228 5335

(2341) (1845) (1918) (2420)

D2G2K1 5432 4515 5258 6155

(2464) (2048) (2385) (2792)

D3G2K1 5432 4515 5258 6155

(2464) (2048) (2385) (2792)

E3G2K1 5798 4932 4934 5800

(2630) (2237) (2238) (2631)

Partial Heat Reclaim

B1C1L1 3183 2222 2017 2875

(1444) (1008) (915) (1304)

B2C2L2 3210 2255 2053 2910

(1456) (1023) (931) (1320)

C1E1M1 4385 3223 3389 4561

(1989) (1462) (1537) (2069)

C2F2M3 4700 3567 3796 4945

(2132) (1618) (1722) (2243)

D1F1M2 4709 3565 3794 4952

(2136) (1617) (1721) (2246)

D2G2N1 5240 4171 4870 5922

(2377) (1892) (2209) (2686)

D3G2N1 5240 4171 4870 5922

(2377) (1892) (2209) (2686)

E3G2N1 5604 4592 4548 5562

(2542) (2083) (2063) (2523)

* Unit Designator (corresponds to digits 6,7,14,15,21,22 of unit

model number)

Page 30

Installation Mechanical

30 RTHD-SVX02H-EN

Table 11. Center of Gravity(in(mm))

Unit Designator* X Y Z

E3G3G3 30.8 63.81 37.62

(782.32) (1621) (956)

E3G2G1 30.8 63.55 38.70

(782.32) (1614) (983)

E3F2F3 27.64 63.46 38.33

(702.06) (1612) (974)

E3D2E2 25.9 60.05 40.5

(658) (1525) (1029)

D3G3G3 30.85 63.48 37.44

(784) (1612) (951)

D3G2G1 30.58 68.56 37.79

(777) (1741) (960)

D3F2F3 27.7 63.4 38.14

(704) (1610) (969)

D3D2E2 25.97 59.95 40.31

(660) (1523) (1024)

D2G3G3 30.85 63.48 37.44

(784) (1612) (951)

D2G2G1 30.58 68.56 37.79

(777) (1741) (960)

D2F2F3 27.7 63.4 38.14

(704) (1610) (969)

D2D2E2 25.97 59.95 40.31

(660) (1523) (1024)

D1G1G1 30.58 68.56 37.79

(777) 1741) (960)

D1G2G2 30.77 63.55 37.72

(782) (1614) (958)

D1F1F2 27.92 63.47 38.7

(709) (1612) (9833)

D1D1E1 25.91 60 40.47

(658) (1524) (1028)

C2F2F3 27.92 63.47 38.7

(709) (1612) (9833)

C2E1F1 26.36 63.49 40.95

(670) (1613) (1040)

C2D3E3 26.13 59.74 40.08

(664) (1517) (1018)

C2D4E4 26.13 59.74 40.08

(664) (1517) (1018)

C1E1F1 26.36 63.49 40.95

(670) (1613) (1040)

C1D3E3 26.13 59.74 40.08

(664) (1517) (1018)

C1D5E4 26.13 59.74 40.08

(664) (1517) (1018)

C1D6E5 26.13 59.74 40.08

(664) (1517) (1018)

B2C2D2 22.4 58.29 33.51

(569) (1481) (851)

B2B2B2 22.88 58.11 35.43

(581) (1476) (900)

B1C1D1 22.32 58.23 33.65

(567) (1479) (855)

B1B1B1 22.84 58.13 35.59

(580) (1477) (904)

* Designator correponds to digits 6,7,14,15,21,22 of model number

Unit Designator* X Y Z

Total Heat Reclaim

B1C1H1 26 58 32

(666) (1481) (824)

B2C2H2 26 58 32

(671) (1483) (819)

C1E1J1 31 62 39

(794) (1582) (999)

C2F2J3 32 62 38

(824) (1583) (953)

D1F1J2 32 62 38

(822) (1584) (954)

D2G2K1 35 68 36

(883) (1732) (927)

D3G2K1 35 68 36

(883) (1732) (927)

E3G2K1 35 64 37

(887) (1621) (947)

Partial Heat Reclaim

B1C1L1 24 58 33

(601) (1480) (837)

B2C2L2 24 58 33

(603) (1482) (833)

C1E1M1 28 63 40

(714) (1592) (1027)

C2F2M3 29 63 38

(749) (1593) (974)

D1F1M2 29 63 38

(748) (1593) (974)

D2G2N1 33 68 37

(848) (1737) (939)

D3G2N1 33 68 37

(848) (1737) (939)

E3G2N1 34 64 38

(853) (1619) (961)

* Designator correponds to digits 6,7,14,15,21,22 of model number

Page 31

Installation Mechanical

RTHD-SVX02H-EN 31

Lifting Procedure

DCAUTION

Equipment Damage!

Never use a forklift to move the unit. The skid is not designed to support the unit at any one point and using a forklift to move the equipment may cause unit damage. Always position the lifting beam so that cables do not contact the unit. Failure to do so may result in unit damage.

Note: If absolutely necessary, the chiller can be pushed

or pulled across a smooth surface if it is bolted to wood shipping mounts.

DWARNING

Shipping Mounts!

Do not use the threaded holes in the compressor to lift or assist in lifting the unit. They are not intended for that purpose and could create a dangerous situation. Do not remove the wood mounts until the unit is in its

nal location. Removal of wood shipping mounts prior to unit nal locating could result in death or serious

injury or equipment damage.

1. When the unit is at its ﬁnal location, remove the shipping bolts that secure the unit to the wood base mounts.

2. Rig the unit properly and lift from above or jack the unit (alternate moving method). Use the points shown on the rigging diagram that ships with the unit as shown in Figure 10. Remove the base mounts.

3. Install clevis connectors in lifting holes provided on the unit. Attach lifting chains or cables to clevis connectors as shown in Figure 10. Each cable alone must be strong enough to lift the chiller.

Table 12. Rigging

Unit Designator*

Dimension (mm (in))

A B C D E F

E3G2G1 3658 3353 1621 20 661 610

(144.02) (132.01) (63.82) (0.79) (26.02) (24.02)

E3F2F3 3658 3353 1612 29 615 610

(144.02) (132.01) (63.46) (1.14) (24.21) (24.02)

E3D2E2 3048 2743 1525 116 612 610

(120.00) (107.99) (60.04) (4.57) (24.09) (24.02)

D3G2G1 3658 3353 1612 99 654 610

(144.02) (132.01) (63.46) (3.90) (25.75) (24.02)

D3F2F3 3658 3353 1610 101 617 610

(144.02) (132.01) (63.39) (3.98) (24.29) (24.02)

D3D2E2 3048 2743 1523 188 614 610

(120.00) (107.99) (59.96) (7.40) (24.17) (24.02)

D2G3G3 / D3G3G3 3658 3353 1612 99 654 610

(144.02) (132.01) (63.46) (3.90) (25.75) (24.02)

D2G2G1 3658 3353 1612 99 654 610

(144.02) (132.01) (63.46) (3.90) (25.75) (24.02)

D2F2F3 3658 3353 1610 101 617 610

(144.02) (132.01) (63.39) (3.98) (24.29) (24.02)

D2D2E2 3048 2743 1523 188 614 610

(120.00) (107.99) (59.96) (7.40) (24.17) (24.02)

D1G1G1 3658 3353 1614 97 661 610

(144.02) (132.01) (63.54) (3.82) (26.02) (24.02)

D1G2G2 3658 3353 1614 97 661 610

(144.02) (132.01) (63.54) (3.82) (26.02) (24.02)

D1F1F2 3658 3353 1612 99 622 610

(144.02) (132.01) (63.46) (3.90) (24.49) (24.02)

D1D1E1 3048 2743 1524 187 612 610

(120.00) (107.99) 60.00) (7.36) (24.09) (24.02)

C2F2F3 3658 3353 1610 101 617 610

(144.02) (132.01) 63.39) (3.98) (24.29) (24.02)

* Designator corresponds to digits 6, 7, 14, 15, 21, 22 of model number

Page 32

Installation Mechanical

32 RTHD-SVX02H-EN

Unit Designator*

Dimension (mm (in))

A B C D E F

C2E1F1 3658 3353 1613 129 624 610

(144.02) (132.01) (63.50) (5.08) (24.57) (24.02)

C2D3E3 3048 2743 1517 225 618 610

(120.00) (107.99) (59.72) (8.86) (24.33) (24.02)

C2D4E4 3048 2743 1523 219 584 610

(120.00) (107.99) (59.96) (8.62) (22.99) (24.02)

C1E1F1 3658 3353 1613 129 624 610

(144.02) (132.01) (63.50) (5.08) (24.57) (24.02)

C1D3E3 3048 2743 1517 225 618 610

(120.00) (107.99) (59.72) (8.86) (24.33) (24.02)

C1D5E4 3048 2743 1523 219 584 610

(120.00) (107.99) (59.96) (8.62) (22.99) (24.02)

C1D6E5 3048 2743 1524 218 582 610

(120.00) (107.99) (60.00) (8.58) (22.91) (24.02)

C1C2D2 3658 3353 1459 93 523 610

(144.02) (132.01) (57.44) (3.66) (20.59) (24.02)

B2C2D2 3658 3353 1481 93 523 610

(144.02) (132.01) (58.31) (3.66) (20.59) (24.02)

B2B2B2 3048 2743 1476 98 535 610

(120.00) (107.99) (58.11) (3.86) (21.06) (24.02)

B1C1D1 3658 3353 1479 95 521 610

(144.02) (132.01) (58.23) (3.74) (20.51) (24.02)

B1B1B1 3048 2743 1447 97 534 610

(120.00) (107.99) (56.97) (3.82) (21.02) (24.02)

Total Heat Reclaim

B1C1H1 3658 3353 1479 95 620 610

(144.02) (132.01) (58.23) (3.74) (24.41) (24.02)

B2C2H2 3658 3353 1481 93 625 610

(144.02) (132.01) (58.31) (3.66) (24.61) (24.02)

C1E1J1 3658 3353 1613 129 748 610

(144.02) (132.01) (63.50) (5.08) (29.45) (24.02)

C2F2J3 3658 3353 1610 101 781 610

(144.02) (132.01) (63.39) (3.98) (30.75) (24.02)

D1F1J2 3658 3353 1612 99 779 610

(144.02) (132.01) (63.46) (3.90) (30.67) (24.02)

D2G2K1 3658 3353 1612 99 763 610

(144.02) (132.01) (63.46) (3.90) (30.04) (24.02)

D3G2K1 3658 3353 1612 99 763 610

(144.02) (132.01) (63.46) (3.90) (30.04) (24.02)

E3G2K1 3658 3353 1621 20 767 610

(144.02) (132.01) (63.82) (0.79) (30.20) (24.02)

Partial Heat Reclaim

B1C1L1 3658 3353 1479 95 555 610

(144.02) (132.01) (58.23) (3.74) (21.85) (24.02)

B2C2L2 3658 3353 1481 93 557 610

(144.02) (132.01) (58.31) (3.66) (21.93) (24.02)

C1E1M1 3658 3353 1613 129 668 610

(144.02) (132.01) (63.50) (5.08) (26.30) (24.02)

C2F2M3 3658 3353 1610 101 706 610

(144.02) (132.01) (63.39) (3.98) (27.80) (24.02)

D1F1M2 3658 3353 1612 99 705 610

(144.02) (132.01) (63.46) (3.90) (27.76) (24.02)

D2G2N1 3658 3353 1612 99 728 610

(144.02) (132.01) (63.46) (3.90) (28.66) (24.02)

D3G2N1 3658 3353 1612 99 728 610

(144.02) (132.01) (63.46) (3.90) (28.66) (24.02)

E3G2N1 3658 3353 1621 20 733 610

(144.02) (132.01) (63.82) (0.79) (28.86) (24.02)

* Designator corresponds to digits 6, 7, 14, 15, 21, 22 of model number

Page 33

Installation Mechanical

RTHD-SVX02H-EN 33

Figure 10. Lifting the Unit

F (MIN)

ANTI-ROLLING CABLE

ANTI-ROLLI NG CABLE

UNIT MODEL NUMBER LO CATION

PAVEDNOC

EVAP

COND

SLORTNOCRETRATS

EYELET OR M16 INTERNAL THREAD

LIFTING HOLES

44,5 MM TY P

NOTES:

1. LIFTING CABLES (CHAINS) WILL NOT BE THE SAME LENGTH. ADJUST TO KEEP UNIT LEVEL WHILE LIFTING.

2. ATTACH ANTI-ROLLING CABLE (CHAIN) AS SHOWN WITHOUT TENSION. NOT AS A LIFTING CABLE, BUT TO PREVENT UNIT FROM ROLLING.

3. DO NOT FORK LIFT UNIT.

4. WEIGHTS ARE TYPICAL FOR UNITS WITH R-134a CHARGE.

5. IF UNIT IS DISASSEMBLED, SEE SERVICE BULLETIN FOR LIFTING AND RIGGING OF COMPONENTS.

WARNING: DO NOT USE CABLES (CHAINS) OR SLINGS EXCEPT AS SHOWN. OTHER LIFTING ARRANGEMENTS MAY CAUSE EQUIPMENT DAMAGE OR SERIOUS PERSONAL INJURY.

4. Attach cables to lifting beam. Total lifting weight, lifting weight distribution and required lifting beam dimensions are shown in the rigging diagram shipped with each unit and in Figure 10. The lifting beam crossbar must be positioned so the lifting cables do not contact unit piping or electrical panel enclosure.

DWARNING

Anti- rotation Strap!

Connect an anti-rotation strap between the lifting beam and compressor before lifting unit. Failure to do so may result in death or serious injury should a lifting cable fail.

5. Connect an anti-rotation strap or cable loosely between the lifting beam and the threaded coupling or eyelet provided at the top of the compressor. Use an eyebolt or clevis to secure the strap at the coupling or eyelet.

Note: The anti-rotation strap is not a lifting chain, but

a safety device to ensure that the unit cannot tilt during lifting.

Alternate Moving Method

6. If it is not possible to rig from above as shown in the ﬁgures, the unit may also be moved by jacking each end high enough to move an equipment dolly under each tube sheet support. Once securely mounted on the dollies, the unit may be rolled into position.

Isolation Pads

The elastomeric pads shipped (as standard) are adequate for most installations. For additional details on isolation practices, refer to Trane Engineering Bulletin -Series R® Chiller Sound Ratings and Installation Guide., or consult an acoustical engineer for sound-sensitive installations.

7. During ﬁnal positioning of the unit, place the isolation pads under the evaporator and condenser tube sheet supports. Level the unit.

Page 34

Installation Mechanical

34 RTHD-SVX02H-EN

Figure 11. Isolator Pad Placement

Technical data of rubber AVM

Model

Load

(kg)

Load

(Lbs)

Deection

(±3mm)

Vertical Rigidity

(kg/mm)

Outer Size(±2mm)

L W H C ØD S

HA-700 700 1543

58.33

159 118 70 127 14 M12

HA-1000 1000 2205 83.33

HA-1400 1400 3086 116.67

HA-1800 1800 3968 150.00

Bottom plate

Isolator

9. The unit is shipped with four spacers (only three on B family) on the compressor mount that protect the compressor isolation pads during shipping and in handling. Remove these spacers (Figure 12) before the unit is operated.

10. Remove the shipping brackets from the bottom sides of the oil separator(s) (see Figure 12).

Note: Once shipping bracket(s) is removed, the oil sep-

arator is only supported by the discharge line.

Placement Neoprene Isolator Installation (optional)

8. Install the optional neoprene isolators at each mounting location.

8.1. Secure the isolators to the mounting surface, using the mounting slots in the isolator base plate, as shown as below. Do not fully tighten the isolator mounting bolts at this time.

8.2. Align the mounting holes in the base of the unit, with the threaded positioning pins on the top of the isolators.

8.3. Lower the unit on to the isolators and secure the isolator to the unit with a nut. Maximum isolator deﬂection should be approximately 1/4”.

8.4. Level the unit carefully. Refer to “Leveling”. Fully tighten the isolator mounting bolts.

8.5. Two Isolators for each foot, refer to Figure 11 , total 8 isolators installed for one chiller.

Page 35

Installation Mechanical

RTHD-SVX02H-EN 35

Unit Leveling

Note: The electrical panel side of the unit is designated

as the “front” of the unit.

1. Check unit level end-to-end by placing a level on the top surface of the evaporator shell.

2. If there is insufﬁcient surface available on the top of the evaporator shell, attach a magnetic level to the bottom of the shell to level the unit. The unit should be level to within 1/4” (6.35 mm) over its length.

3. Place the level on the evaporator shell tube sheet support to check sideto- side (front-to-back) level. Adjust to within 1/4” (6.35 mm) of level frontto- back.

Note: The evaporator MUST be level for optimum heat

transfer and unit performance.

4. Use full-length shims to level the unit.

Water Piping

Piping Connections

DCAUTION

Equipment Damage!

To prevent equipment damage, bypass the unit if using

an acidic ushing agent.

Make water piping connections to the evaporator and condenser. Isolate and support piping to prevent stress on the unit. Construct piping according to local and national codes. Insulate and ﬂush piping before connecting to unit.

Use grooved pipe connectors for all water piping connections. Evaporator and condenser water inlet and outlet sizes and locations are shown by the unit submittals and in Figure 13 through Figure 18. The designation in the tables corresponds to the compressor frame code followed by the evaporator shell code followed by the condenser shell code as given in the unit model number, digits 6, 7, 14, 15, 21 and 22. Table 13 gives additional water connection information.

Reversing Water Boxes

All water boxes may be reversed end-for-end. Do not rotate water boxes. Remove the sensors from the wells before removing the water box. Complete the water box switch and replace the sensors. See Figure 13 through

Figure 18 for correct orientation of the water inlet and

outlet.

If the water boxes are reversed, be sure to properly rewire the water temperature sensors in the control panel.

Note: Be certain to replace water boxes right-side-up

to maintain proper bafﬂe orientation. Use new o-rings.

Figure 12. Oil Separator with Shipping Bracket and Compressor Shipping Spacer

Shipping Bracket

Oil Separator

Remove 4 Shipping

Spacers (only 3 on B

Compressor

Housing

M20 bolt

family)

Page 36

Installation Mechanical

36 RTHD-SVX02H-EN

Figure 13. Condenser and Evaporator Water Connections -BBB

24.48 [622 mm]

12. 47 [317 mm]

11.50 [292 mm]

13.35 [339 mm]

9.50 [241 mm]

70.30 [1786 mm]

13.84 [351 mm]

9.44 [240 mm]

107.66 [2734 mm] Standard 3 Pass

28.59 [726 mm]

9.44 [240 mm]

72.80 [1849 mm]

7.80[198 mm]

97.51 [2477 mm]

4.96 [126 mm]

0.08 [2 mm]

10.23 [260 mm]

OUT

COND

EVAP

CONDENSER

OIL S UMP

OUT

EVAPORATOR

EVA POR ATOR

2 Pass Evaporator Connection Configuration (left or right hand) Depends on Water Inlet

28.46 [723 mm]

3.90 [353 mm]

10.31 [262 mm]

6.97 [177 mm]

64.34 [1634 mm]

Page 37

Installation Mechanical

RTHD-SVX02H-EN 37

Figure 14. Condenser and Evaporator Water Connections -BCD/CCD

24.48 [622 mm]

12.47[317 mm]

11.50 [292 mm]

13.35 [339 mm]

9.50 [241 mm]

13.84 [351 mm]

9.44 [240 mm]

125.91 [3198 mm] St anda rd 3 Pas s

9.44 [240 m m]

28.59 [726 mm]

70. 80 [17 98 m m]

118. 00 [29 97 m m]

7.80 [198] mm

7.91 [201 mm]

0. 01 [ 0 m m]

COND

EVAP

OUT

EVAPORATOR

CONDENS ER

OIL SUMP

4. 96 [12 6 mm]

OUT

72.80 [1849 mm]

EVAPORATOR

2 Pass Evaporator

Connection Configuration (left or right hand)

Depends on Water Inlet

28.46 [723 mm]

13.90[353 mm]

10.31 [262 mm]

6.97 [177 mm]

66.74 [1695 mm]

Page 38

Installation Mechanical

38 RTHD-SVX02H-EN

Figure 15. Condenser and Evaporator Water Connections - CEF

27.22[692 mm]

12.73 [323 mm]

12.49 [317 mm]

67.5 4 [1715 mm]

14.50 [368 mm]

5.29 [134 mm]

73.44 [1865 mm]

14.88 [378 mm]

10.20 [260 mm]

125. 91 [31 98 mm ]

Standard 3 Pass

30.1 3 [765 mm ]

10.20 [260mm]

76. 24 [19 37 mm ]

4.84 [123 mm]

3.07 [78 mm]

6.0 0 [153 mm ]

9.11 [232 mm]

118.00 [2997 mm]

OUT

EVAPORATOR

OI L SUM P

CONDENSER

COND EVAP

EVAPORATOR

2 Pass Evaporator

Connection Configuration (left or right hand)

Depends on Water Inlet

7.67 [195 mm]

29.80 [757 mm]

15.24 [387 mm]

11.02[280 mm]

Page 39

Installation Mechanical

RTHD-SVX02H-EN 39

Figure 16. Condenser and Evaporator Water Connections - CDE/DDE/EDE

12.72 [323 m m]

7.20 [691 mm]

67. 58 [17 17 m m]

14.5 0 [36 8 mm]

5.29 [134 mm]

12. 49 [31 7 mm ]

73. 44 [18 65 m m]

97. 5 0 [24 77 m m]

8.0 0 [20 3 mm] for 150 psi

8.5 0 [21 6 mm] for 300 psi

2.56 [65 m m]

7.5 9 [19 3 mm]

6. 00 [153 mm] for 150 psi

6.50 [166 mm] for 300 psi

14.88 [378 mm]

10.20[260mm]

107. 66 [273 4 mm ] Sta ndar d 3 Pass

30.13 [765 mm]

10.20 [260 m m]

76.27 [1937 mm]

OUT

COND

EVAP

EVAPORATOR

OUT

CONDENSER

OI L SUM P

EVA POR ATOR

2 Pass Evaporator

Connection Configuration (left or right hand)

Depends on Water Inlet

7.67 [195 mm]

29.80 [757 mm]

15.24 [387 mm]

11.02 [280 mm]

Page 40

Installation Mechanical

40 RTHD-SVX02H-EN

Figure 17. Condenser and Evaporator Water Connections – CFF/DFF/EFF

27.22 [692 mm]

12.49 [317 mm]

67. 54 [ 171 6 mm ]

16. 20 [41 1 mm ]

3.59 [91 mm]

73. 52 [18 67 m m]

10.91 [277 mm]

10.67 [271 mm]

125.91 [3198 mm] Sta ndar d 3 Pass

27.91 [709 mm]

10.67 [271 mm]

12.73 [323 mm]

4.87 [124 mm] 3.0 4 [ 77 m m]

6.00 [153 mm]

9.11 [232m m ]

118.00 [2997 mm]

76.23 [1936 mm]

OUT

COND

EVAP

EVAPORATOR

OU T

OIL S UMP

CONDENSER

EVAPORATOR

2 Pass Evaporator

Connection Configuration (left or right hand)

Depends on Water Inlet

27.87 [708mm]

10.94 [278 mm]

12.52 [318 mm]

8.71 [221 mm]

Page 41

Installation Mechanical

RTHD-SVX02H-EN 41

Figure 18. Condenser and Evaporator Water Connections - CGG/DGG/EGG

69.72 [1771 mm]

14.70 [373 mm]

1.18 [30 mm]

18.63 [473 mm]

9.35 [238 mm]

125.91 [3198 mm] Standard 4 Pass

33.89 [861 mm]

12.20 [310 mm]

10.35[263 mm]

129.80 [3297 mm]

28 [185 mm]

0.67 [17 mm]

3.22 [82 mm]

77.29 [1963 mm]

80.02 [2033 mm]

OUT

COND

EVAP

OUT

EVAPORATOR

CONDENSER

OI L SUM P

22.50 [571 mm]

29. 09 [739 mm]

14.61 [371mm]

OUT

11.39 [289 mm]

EVAPORATOR

3 Pass Evaporator

Connection Configuration (left or right hand)

Depends on Water Inlet

CONFORMS TO ASME Y14.5M-1994

ANGLES =

HOLE DIA =

12.60 [320 mm]

14.17 [360 mm]

32.64 [829 mm]

14.17 [360 mm]

Page 42

Installation Mechanical

42 RTHD-SVX02H-EN

Figure 19. Condenser and Evaporator Water Connections - BCH

75.55 [191

9 mm]

28.59 [726 mm]

9.44 [240 mm]125.91 [3198 mm]

Standard 3 -pass

13.84 [351 mm]

9.44 [240 mm]

70.80 [1798 mm]

9.50 [241 mm]13.35 [339 mm]

72.05 [1830 mm]

10.16 [258 mm]

22.52 [572 mm]

14.25 [362 mm]

26.30

[668 mm]

OUTOUT

OUT

COND

EVAP

8.27 [210 mm]118.00 [2997 mm]14.43 [367 mm]

21.93 [557 mm]

7.91 [201 mm] 0.01 [0 mm]

Condenser

Evaporator

Oil Sump

Page 43

Installation Mechanical

RTHD-SVX02H-EN 43

Figure 20. Condenser and Evaporator Water Connections - CEJ

73.44 [1865 mm]

5.29 [134 mm]

14.50 [368 mm]

17.52 [445 mm]

32.09 [815 mm

]

10.43 [265 mm]

25.00 [635 mm]

76.89 [1953 mm]

30.13 [765 mm]

81.81 [20

78 mm]

10.20 [260 mm]

14.88 [378 mm]

125.91 [3198mm]

118.00 [2997 mm]2108.27 [ mm]

38815.28 [ mm]

150/300 psi Condenser

water chamber

53721.18 [ mm]

300 psi Condenser

water chamber

2078.15 [ mm]

OUT

0.01 [0 mm]

Standard 3 -pass

Condenser

Evaporator

Oil Sump

Page 44

Installation Mechanical

44 RTHD-SVX02H-EN

Figure 21. Condenser and Evaporator Water Connections - CFJ/DFJ

76.89 [1953 mm]

25.00 [635 mm]

10.43 [265 mm]

]

17.52 [445 mm]

16.20 [411 mm]

3.59 [91 mm]

73.52 [1867 mm]

125.91 [3198mm]

10.91 [277 mm]

10.67 [271 mm]

81.81 [20

78 mm]

27.91 [709 mm]

2078.15 [ mm]

53721.18 [ mm]

38815.28 [ mm]

2108.27 [ mm] 118.00 [2997 mm]

OUT

0.01 [0 mm]

150/300 psi Condenser

water chamber

300 psi Condenser

water chamber

Standard 3 -pass

Page 45

Installation Mechanical

RTHD-SVX02H-EN 45

Figure 22. Condenser and Evaporator Water Connections - DGK/EGK

77.29 [1963 mm]

22.50 [571 mm]

1.18 [30 mm]

18.63 [473 mm]

77.17 [1960 mm]

42616.77 [ mm]

796 [ mm]

26510.43 [ mm]

63525.00 [ mm]

12.20 [310 mm]

11.39 [289 mm]

33.89 [861 mm]

125.91 [3198 mm] 9.35 [238 mm]

206181.14 [

mm]

OUT

2108.27 [ mm]3289129.49 [ mm]38815.28 [ mm]

538 21.18 [ mm]

30.12 [ mm]

883.46 [ mm]

150/300 psi Condenser

water chamber

300 psi Condenser

water chamber

Standard 4 -pass

Condenser

Evaporator

Oil Sump

Page 46

Installation Mechanical

46 RTHD-SVX02H-EN

Figure 23. Condenser and Evaporator Water Connections - BCL

28.59 [726 mm]

9.44 [240 mm]125.91 [3198 mm]

13.84 [351 mm]

9.44 [240 mm]

70.80 [1798 mm]

9.50 [241 mm]

13.35 [339 mm]

OUT

COND

EVAP

35413.94 [ mm]

56922.40 [ mm]

672

.46 [ mm]

1837.20 [ mm]

1525.98 [ mm]

31812.52 [ mm]

44717.60 [ mm]

170166.97 [ mm]

189274.49 [

mm]

2459.65 [ mm] 2997118.00 [ mm] 41016.14 [ mm]

42316.65 [ mm]

57322.56 [ mm]

7.91 [201 mm]

0.01 [0 mm]

Standard 3 -pass

Condenser

Evaporator

Oil Sump

Page 47

Installation Mechanical

RTHD-SVX02H-EN 47

Figure 24. Condenser and Evaporator Water Connections - CEM

73.44 [1865 mm]

5.29 [134 mm]

14.50 [368 mm]

30.13 [765 mm]

10.20 [260 mm]

14.88 [378 mm]

125.91 [3198mm]

OUT

43116.97 [ mm]

53120.91 [ mm]

75029.53 [ mm]

850 [ mm]

1646.46 [ mm]

2238.78 [ mm]

37514.76 [ mm]

53721.14 [ mm]

194976.73 [

mm]

41016.14 [ mm]

42316.65 [ mm]

57322.56 [ mm]

2108.27 [ mm]

2997118.00 [ mm]

0.01 [0 mm]

8.15 [207 mm]

71.42 [1814 mm]

Standard 3 -pass

Condenser

Evaporator

Oil Sump

Page 48

Installation Mechanical

48 RTHD-SVX02H-EN

Figure 25. Condenser and Evaporator Water Connections - CFM/DFM

OUT

43116.97 [ mm]

53120.91 [ mm]

75029.53 [ mm]

850

.46 [ mm]

1646.46 [ mm]

2238.78 [ mm]

37514.76 [ mm]

53721.14 [ mm]

41116.20 [ mm] 3.59 [91 mm]

71.69 [1821 mm]

73.52 [1867 mm]

10.91 [277 mm]

10.68 [271 mm]

27.91 [709 mm]

194976.73 [

mm]

3198125.91 [ mm]

10.67 [271 mm]

41016.14 [ mm]

42316.65 [ mm]

57322.56 [ mm]

2997118.00 [ mm] 2108.27 [ mm]

1827.17 [ mm]

251.00 [ mm]

Standard 3 -pass

Condenser

Evaporator

Oil Sump

Page 49

Installation Mechanical

RTHD-SVX02H-EN 49

Figure 26. Condenser and Evaporator Water Connections - DGN/EGN

77.29 [1963 mm]

22.50 [571 mm]

1.18 [30 mm]

18.63 [473 mm]

12.20 [310 mm]

125.91 [3198 mm] 9.35 [238 mm

]

OUT

35213.86 [ mm]

59823.54 [ mm]

79831.42 [ mm]

896 [ mm]

2459.65 [ mm]

39015.35 [ mm]

41516.34 [ mm]

65225.67 [ mm]

192575.79 [ mm]

2108.27 [ mm]3297129.80 [ mm]41016.14 [ mm]

42816.85 [ mm]

57822.76 [ mm]

823.22 [ mm]

170.67 [ mm]

28911.39 [ mm]

86133.89 [ mm]

200278.82 [

mm]

Standard 4 -pass

Condenser

Evaporator

Oil Sump

Page 50

Installation Mechanical

50 RTHD-SVX02H-EN

Table 13. Evaporator and Condenser Data

Compress

or Frame

Code (Digit

6,7 of Model

No.)

Evap Shell

Code (Dig-

its 14, 15 of

Model No.)

Evap.

Shell

Diameter

(in)

Nominal Connector

size (NPS)*

Cond Shell

Code

(Digits 21,22 of

Model No.)

Cond. Shell

Diameter

(in)

Nom. Conn.

Size

(NPS)*

Pass3-Pass4-Pass

Standard

Condenser

Heat

Reclaim

2-Pass 2-Pass

D2 26.5 8 8 6 E2 22.0 8 -

F2 29.0 8 8 - E2 22.0 8 -

G2 33.5 - 10 8 G1 25.75 8 -

D2 26.5 8 8 6 E2 22.0 8 -

F2 29.0 10 8 - F3 22.0 8 G2 33.5 - 10 8 G1 25.75 8 G3 33.5 - 10 8 G3 25.75 8 -

G3 33.5 - 10 8 G3 25.75 8 D2 26.5 8 8 6 E2 22.0 8 -

F2 29.0 10 8 - F3 22.0 8 G2 33.5 - 10 8 G1 25.75 8 -

D1 26.5 8 8 6 E1 22.0 8 -

F1 29.0 10 8 - F2 22.0 8 G1 33.5 - 10 8 G1 25.75 8 -

D3 26.5 8 8 6 E3 22.0 8 D4 26.5 8 8 6 E4 22.0 8 -

E1 26.5 8 8 6 F1 22.0 8 -

F2 29.0 10 8 - F3 22.0 8 -

D6 26.5 8 8 6 E5 22.0 8 D5 26.5 8 8 6 E4 22.0 8 D3 26.5 8 8 6 E3 22.0 8 -

E1 26.5 8 8 6 F1 22.0 8 -

C2 23.0 - 6 - D2 18.75 6 -

B2 23.0 - 6 - B2 18.75 6 -

C1 23.0 - 6 - D1 18.75 6 -

B1 23.0 - 6 - B1 18.75 6 -

B1 C1 23.0 - 6 - H1 25.75 6 6 B2 C2 23.0 - 6 - H2 25.75 6 6 C1 E1 26.5 8 8 - J1 31.5 8 8 C2 F2 29.0 10 8 - J3 31.5 8 8 D1 F1 29.0 10 8 - J2 31.5 8 8 D2 G2 33.5 - 10 8 K1 31.5 8 8 D3 G2 33.5 - 10 8 K1 31.5 8 8 E3 G2 33.5 - 10 8 K1 31.5 8 8 B1 C1 23.0 - 6 - L1 22.0 6 3 B2 C2 23.0 - 6 - L2 22.0 6 3 C1 E1 26.5 8 8 - M1 26.5 8 4 C2 F2 29.0 10 8 - M3 26.5 8 4 D1 F1 29.0 10 8 - M2 26.5 8 4 D2 G2 33.5 - 10 8 N1 29.0 8 4 D3 G2 33.5 - 10 8 N1 29.0 8 4 E3 G2 33.5 - 10 8 N1 29.0 8 4

Metric Conversion is: 6 NPS = 150 mm nominal 8 NPS = 200 mm nominal 10 NPS = 250 mm nominal

Page 51

Installation Mechanical

RTHD-SVX02H-EN 51

Water Pressure Drop Data

Evaporator Pressure Drop

G Frame - 3 Pass

0 500 100015002000 25003000

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

G Frame - 4 Pass

0500 1000 1500 2000

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

F Frame - 2 Pass

0500 1000 1500 2000 2500 3000

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

F Frame - 3 Pass

0500 1000 1500 2000

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

E Frame - 2 Pass

0500 1000 1500 2000

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

E Frame - 3 Pass

0200 400600 800100012001400

Flow (GPM)

Delt-P (Ft H

Page 52

Installation Mechanical

52 RTHD-SVX02H-EN

Evaporator Pressure Drop

D Frame - 2 Pass

0500 1000 1500 2000 2500

Flow (GPM)

Delt-P (Ft H

D4 & D5

Evaporator Pressure Drop

D Frame - 3 Pass

0 200 400600 8001000120 01400

Flow (GPM)

Delt-P (Ft H

D4 & D5

Evaporator Pressure Drop

C Frame - 2 Pass

0500 1000 1500

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

C Frame - 3 Pass

0200 400600 80

000

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

B Frame - 3 Pass

0200 400600 80

000

Flow (GPM)

Delt-P (Ft H

Evaporator Pressure Drop

B Frame - 2 Pass

0 200 400600 8001000120 01400

Flow (GPM)

Delt-P (Ft H

Page 53

Installation Mechanical

RTHD-SVX02H-EN 53

Condenser Pressure Drop

G Frame - 2 Pass

0500 1000 1500 2000 2500 3000

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

F Frame - 2 Pass

0500 1000 1500 2000

Flow (GPM)

Delt-P (Ft H

F1 & F3

Condenser Pressure Drop

E Frame - 2 Pass

0500 1000 1500

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

D Frame - 2 Pass

0200 400600 80

000

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

B Frame - 2 Pass

0200 400600 80

000

Flow (GPM)

Delt-P (Ft H

R² = 1

0 200 400600 80

000

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

D Frame - 4 Pass

Page 54

Installation Mechanical

54 RTHD-SVX02H-EN

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

E Frame - 4 Pass

R² = 1

0 200 400 600 800 100

200

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

K Frame - 2 Pass

0 500 1000 1500 2000 2500 3000

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

N Frame - 2 Pass

0500 1000 1500 2000 2500 3000

Heat Reclaim N1

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

J Frame - 2 Pass

0 500 1000 1500 2000

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

M Frame - 2 Pass

0500 1000 1500 2000

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

H Frame - 2 Pass

0 200 400 600800 1000

Page 55

Installation Mechanical

RTHD-SVX02H-EN 55

Flow (GPM)

Delt-P (Ft H

Condenser Pressure Drop

L Frame - 2 Pass

0200 400 600 80

000

Condenser L1

Heat Reclaim L1

Making Grooved Pipe Connections

DCAUTION

Equipment Damage!

To prevent damage to water piping, do not overtighten connections. To prevent equipment damage, bypass

the unit if using an acidic ushing agent.

Note: Make sure that all piping is ﬂushed and cleaned

prior to starting the unit.

Vents and Drains

Install pipe plugs in evaporator and condenser water box drain and vent connections before ﬁlling the water systems.

To drain water, remove vent and drain plugs, install a NPT connector in the drain connection with a shutoff valve and connect a hose to it.

Evaporator Piping Components

Note: Make sure all piping components are between

the shutoff valves, so that isolation can be accomplished on both the condenser and the evaporator.

“Piping components” include all devices and controls used to provide proper water system operation and unit operating safety. These components and their general locations are given below.

Entering Chilled Water Piping

• Air vents (to bleed air from system)

• Water pressure gauges with shutoff valves

• Pipe unions

• Vibration eliminators (rubber boots)

• Shutoff (isolation) valves

• Thermometers

• Cleanout tees

• Pipe strainer

Leaving Chilled Water Piping

• Air vents (to bleed air from system)

• Water pressure gauges with shutoff valves

• Pipe unions

• Vibration eliminators (rubber boots)

• Shutoff (isolation) valves

• Thermometers

• Cleanout tees

• Balancing valve

• Pressure relief valve

• Flow switch

DCAUTION

Evaporator Damage!

To prevent evaporator damage, do not exceed 150 psig (10.3 bar) evaporator water pressure for standard water boxes. Maximum pressure for high pressure water boxes is 300 psig (20.7 bar). Refer to digit 14 of the Model No. To prevent tube damage, install a strainer in the evaporator water inlet piping. To prevent tube corro-

sion, ensure that the initial water ll has a balanced pH.

Condenser Piping Components

“Piping components” include all devices and controls used to provide proper water system operation and unit operating safety. These components and their general locations are given below.

Entering condenser water piping

• Air vents (to bleed air from system)

• Water pressure gauges with shutoff valves

• Pipe unions

• Vibration eliminators (rubber boots)

• Shutoff (isolation) valves. One per each pass

• Thermometers

• Cleanout tees

• Pipe strainer

Leaving condenser water piping

• Air vents (to bleed air from system)

• Water pressure gauges with shutoff valves

• Pipe unions

• Vibration eliminators (rubber boots)

• Shutoff (isolation) valve - one per each pass

Page 56

Installation Mechanical

56 RTHD-SVX02H-EN

• Thermometers

• Cleanout tees

• Balancing valve

• Pressure relief valve.

• Flow switch

DCAUTION

Condenser Damage!

To prevent condenser damage, do not exceed 150 psig (10.3 bar) water pressure for standard water boxes. Maximum pressure for high pressure water boxes is 300 psig (20.7 bar). Refer to digit 18 of the Model No. To prevent tube damage, install a strainer in condenser water inlet piping. To prevent tube corrosion, ensure

that the initial water ll has a balanced pH.

Condenser Water Regulating Valve

The Condenser Head Pressure Control Option provides for a 0-10VDC (maximum range - a smaller range is adjustable) output interface to the customer’s condenser water ﬂow device. The condenser water ﬂow device is typically a large butterﬂy type (6” or 8”) automatic valve for 200 to 400 Ton chillers.

The following guidelines must be met in order to ensure adequate oil circulation throughout the system.

• The RTHD must maintain a 23 psid system pressure differential at all load conditions in order to ensure adequate oil circulation.

• The entering condenser water temperature must be above 55°F (12.8°C) or between 45°F (7.2°C) and 55°F (12.8°C) with a 1°F temperature rise per minute to 55°F (12.8°C).

• Condenser leaving water temperature must be 17°F degrees higher than evaporator leaving water temperature within 2 minutes of startup. A 25°F diferential must be maintained thereafter.

If the above guidelines cannot be met, then some form of tower water control must be used.

Condenser Water Regulating Valve Adjustment

A separate TechView Settings Menu tab entitled “Condenser Head Pressure Control - Setup” that is only visible if the conﬁguration is selected, contain the following settings and manual overrides for user adjustments and commissioning all under one tab:

• “Off State” Output Command (0-10 Vdc 0.1 volt increments, Default 2.0 Vdc)

• Output Voltage @ Desired Minimum Flow (Adj: 0 to

10.0 in 0.1 volt increments, Default 2.0 Vdc)

• Desired Minimum Flow (Adj: 0- 100% of full ﬂow in 1% intervals, Default 20%)

• Output Voltage @ Desired Maximum Flow (Adj: 0 to

10.0 in .1 volt increments (or ﬁner), Default 10 Vdc)

• Actuator Stroke Time (Min to Max Range Time) (Adj: 1 to 1000 seconds, in 1 second increments, Default 30s)

• Damping Coefﬁcient (adj: 0.1 to 1.8 , in .1 increments, Default .5)

• Head Pressure Control Override (enumeration of: disabled (auto), “off” state, minimum, maximum (100%),) default :disabled (auto). When this setting is in “disabled (auto)”

• Condenser Water Pump Prerun Time

Partial Heat Recovery Condenser Tube Parts

Partial heat recovery condenser should be installed with a pressure reducing valve to reduce the inlet water pressure. This requirement is only for the design pressure that the water pressure exceeds the container nameplate. This is necessary to prevent the valve disc and valve seat from being damaged by excessive pressure drop. In addition, it is necessary to limit the water side pressure of partial heat recovery condenser. Some heat recovery condenser water side design pressure shown in the container nameplate.

DWARNING

May Damage The Condenser and Compressor!

In order to avoid damaging the partial heat recovery

condenser or water ow regulating valve, the inlet

pressure should not exceed the design pressure shown in the container nameplate.

Full Heat Recovery Condenser Tube Parts

The full heat recovery condenser should be installed with a pressure reducing valve to reduce the inlet water pressure. This requirement is only for the design pressure that the water pressure exceeds the container nameplate. This is necessary to prevent the valve disc and valve seat from being damaged by excessive pressure drop. In addition, it is necessary to limit the water side pressure of the total heat recovery condenser. The total heat recovery condenser water side design pressure shown in the container nameplate.

DWARNING

May Damage The Condenser and Compressor!

In order to avoid damaging the total heat recovery

condenser or water ow regulating valve, the inlet

pressure should not exceed the design pressure shown in the container nameplate.

Page 57

Installation Mechanical

RTHD-SVX02H-EN 57

Full Heat Recovery Condenser Water Temperature Requirements and Control

DWARNING

The following application conditions

must be satised, otherwise the unit will

be damaged easily!

1. Operation control of the pump: the operation of the pump must correspond with the pump start-stop signal of the UC800 controller of the unit.

2. Setting of water ow switch: the ow switch node

of the unit is not allowed to be short-connected, and

it should be connected with the water system ow switch, and the ow rate is not less than 60% of the rated ow when the water ow switch is closed.

3. Establishment time of ow: Time between ow

switch close and water pump runs should not exceed 5 minutes.

4. In addition to the mode switching process, the two water pumps of the full heat recovery unit are not allowed to run simultaneously.

Installation Of Water Tank Temperature Sensor

The RTHD full heat recovery unit needs to collect the temperature of the client’s water tank at run time for load control, and the installation of the temperature sensor of the tank can be referenced below. Part 1 is provided by the customer. The internal thread speciﬁcation of the joint and temperature sensor temperature package is 1/2-14NPT. Parts 2, 3, 4 are provided by Trane. In order to avoid affecting the measurement accuracy, the distance between the insertion position of the temperature sensor and the water tank must not exceed 200mm. The temperature sensor is connected to the temperature acquisition module by 20 meters long connecting line, and the temperature of the water tank is transmitted to the unit control cabinet.

Client water box

Max. 200mm

Receive full heat recovery condenser inlet

1. Temperature sensor temperature well connector.

2. Temperature sensor temperature well.

3. Temperature sensor

4. 20 meters long connecting line.

Water Treatment

DCAUTION

Proper Water Treatment!

The use of untreated or improperly treated water in a RTHD may result in scaling, erosion, corrosion, algae or

slime. It is recommended that the services of a qualied

water treatment specialist be engaged to determine what water treatment, if any, is required. The Trane Company assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water.

Using untreated or improperly treated water in these units may result in inefﬁcient operation and possible tube damage. Consult a qualiﬁed water treatment specialist to determine whether treatment is needed.

Water Pressure Gauges and Thermometers

Install ﬁeld-supplied thermometers and pressure gauges (with manifolds, whenever practical) as shown in Figure

27. Locate pressure gauges or taps in a straight run of

pipe; avoid placement near elbows, etc. Be sure to install the gauges at the same elevation on each shell if the shells have opposite-end water connections.

To read manifolded water pressure gauges, open one valve and close the other (depending upon the reading desired). This eliminates errors resulting from differently calibrated gauges installed at unmatched elevations.

Page 58

Installation Mechanical

58 RTHD-SVX02H-EN

Figure 27. Typical Thermometer, Valving, and Manifold Pressure Gauge Set-up

Pressure Differential Gauge

Isolation Valves

Manifold

Flow Switch

Shutoff Valves

Thermometers

Relief Valve

Relief

Valve

Cond

Evap Wa

ter

Wat

Flow

Shutoff Valves

Reg. Valve (Opt.)

Cond Water

Flow Switch

Refer to Trane Engineering Bulletin - Series R® Chillers Sound Ratings and

Installation Guide for sound-sensitive applications.

Water Pressure Relief Valves

DCAUTION

Shell Damage!

Install a pressure relief valve in both evaporator and condenser water systems. Failure to do so may result in shell damage.

Install a water pressure relief valve in one of the condenser and one of the evaporator water box drain connections or on the shell side of any shutoff valve. Water vessels with close-coupled shutoff valves have a high potential for hydrostatic pressure buildup on a water temperature increase. Refer to applicable codes for relief valve installation guidelines.

Flow Sensing Devices

The installer must provide ﬂow switches or differential pressure switches with pump interlocks to sense system water ﬂow. Flow switch locations are schematically shown in Figure 27.

To provide chiller protection, install and wire ﬂow switches in series with the water pump interlocks, for both chilled water and condenser water circuits (refer to the Installation Electrical section). Speciﬁc connections and schematic wiring diagrams are shipped with the unit.

Flow switches must stop or prevent compressor operation if either system water ﬂow drops off below the required minimum shown on the pressure drop curves. Follow the manufacturer’s recommendations for selection and installation procedures. General guidelines for ﬂow switch installation are outlined below.

• Mount the switch upright, with a minimum of 5 pipe diameters straight, horizontal run on each side.

• Do not install close to elbows, oriﬁces or valves.

Note: The arrow on the switch must point in the direc-

tion of the water ﬂow.

• To prevent switch ﬂuttering, remove all air from the water system.

Note: The UC800 provides a 6-second time delay on the

ﬂow switch input before shutting down the unit

on a loss-of-ﬂow diagnostic. Contact a qualiﬁed service organization if nuisance machine shutdowns persist.

• Adjust the switch to open when water ﬂow falls below nominal. Refer to the General Data table in Section 1 for minimum ﬂow recommendations for speciﬁc water pass arrangements. Flow switch contacts are closed on proof of water ﬂow.

Page 59

Installation Mechanical

RTHD-SVX02H-EN 59

Refrigerant Pressure Relief Valve Venting

DWARNING

Hazardous Gases!

Consult local regulations for any special relief line requirements. Refrigerant vented into a conned equipment room could displace available oxygen to breathe, causing possible asphyxiation or other serious health risks. Failure to follow these recommendations could result in death or serious injury.

Note: Vent pipe size must conform to the ANSI/ASHRAE

Standard 15 for vent pipe sizing. All federal, state, and local codes take precedence over any suggestions stated in this manual.

All relief valve venting is the responsibility of the installing contractor.

All RTHD units use evaporator, compressor, and condenser pressure relief valves (Figure 28) that must be vented to the outside of the building.

Relief valve connection sizes and locations are shown in the unit submittals. Refer to local codes for relief valve vent line sizing information.

DCAUTION

Equipment Damage!

Do not exceed vent piping code specications. Failure to comply with specications may result in capacity

reduction, unit damage and/or relief valve damage.

Relief valve discharge setpoints and capacities rates are given in Table 14. Once the relief valve has opened, it will reclose when pressure is reduced to a safe level.

Note: Once opened, relief valves may have tendency to

leak and must be replaced.

Figure 28. Relief Valve Location

Evaporator Shell

* Valve is hidden by pipe

Condenser Shell

Discharge Pipes

Pressure relief valve discharge capacities will vary with shell diameter and length and also compressor displacement. Discharge venting capacity should be calculated as required by ASHRAE Standard 15-94. Do not adjust relief valve setting in the ﬁeld.

Page 60

Installation Mechanical

60 RTHD-SVX02H-EN

Table 14. Pressure Relief Valve Data

Valve Location Discharge

Setpoint (psi)

Number of Valves

Rated Capacity per Relief Valve (lba/min.)

Field Connection Pipe Size (in NPT)

Factory Shell Side Connection(in)

Evap - B1 200 2 48.0 1 1-5/16-12 Evap - B2 200 2 48.0 1 1-5/16-12 Evap - C1 200 2 48.0 1 1-5/16-12 Evap - C2 200 2 48.0 1 1-5/16-12 Evap - D1 200 2 48.0 1 1-5/16-12 Evap - D2 200 2 48.0 1 1-5/16-12 Evap - D3 200 2 48.0 1 1-5/16-12 Evap - D4 200 2 48.0 1 1-5/16-12 Evap - D5 200 2 48.0 1 1-5/16-12 Evap - D6 200 2 48.0 1 1-5/16-12 Evap - E1 200 2 48.0 1 1-5/16-12 Evap - F1 200 2 48.0 1 1-5/16-12 Evap - F2 200 2 48.0 1 1-5/16-12 Evap - G1 200 2 48.0 1 1-5/16-12 Evap - G2 200 2 48.0 1 1-5/16-12 Evap - G3 200 2 48.0 1 1-5/16-12 Cond - B1 200 2 48.0 1 1-5/16-12 Cond - B2 200 2 48.0 1 1-5/16-12 Cond - D1 200 2 48.0 1 1-5/16-12 Cond - D2 200 2 48.0 1 1-5/16-12 Cond - E1 200 2 48.0 1 1-5/16-12 Cond - E2 200 2 48.0 1 1-5/16-12 Cond - E3 200 2 48.0 1 1-5/16-12 Cond - E4 200 2 48.0 1 1-5/16-12 Cond - E4 200 2 48.0 1 1-5/16-12 Cond - E5 200 2 48.0 1 1-5/16-12 Cond - F1 200 2 48.0 1 1-5/16-12 Cond - F2 200 2 48.0 1 1-5/16-12 Cond - F3 200 2 48.0 1 1-5/16-12 Cond - G1 200 2 48.0 1 1-5/16-12 Cond - G1 200 2 48.0 1 1-5/16-12 Cond - G3 200 2 48.0 1 1-5/16-12 Cond - H1 200 2 48.0 1 1-5/16-12 Cond - H2 200 2 48.0 1 1-5/16-12 Cond - J1 200 2 48.0 1 1-5/16-12 Cond - J2 200 2 48.0 1 1-5/16-12 Cond - J3 200 2 48.0 1 1-5/16-12 Cond - K1 200 2 48.0 1 1-5/16-12 Cond - L1 200 2 48.0 1 1-5/16-12 Cond - L2 200 2 48.0 1 1-5/16-12 Cond - M1 200 2 48.0 1 1-5/16-12 Cond - M2 200 2 48.0 1 1-5/16-12 Cond - M3 200 2 48.0 1 1-5/16-12 Cond - N1 200 2 48.0 1 1-5/16-12 Comp - B1/B2* 200 2 78.8 1-1/4 1-5/8-12 Comp - C1/C2* 200 3 78.8 1-1/4 1-5/8-12 Comp - D1/D2/D3* 200 3 78.8 1-1/4 1-5/8-12 Comp -E3* 200 3 78.8 1-1/4 1-5/8-12

* Only used with isolation valve option

Page 61

Installation Mechanical

RTHD-SVX02H-EN 61

Thermal Insulation

All RTHD units are available with optional factory installed thermal insulation. If the unit is not factory insulated, install insulation over the areas shaded in Figure

29. Refer to Table 15 for types and quantities of insulation

required.

Insulation thickness is determined at normal design conditions which are:

• Standrad comfort-cooling leaving chilled water temperature

• 85ºF Dry bulb ambient temperature

• 75% Relative humidity

Operation outside of normal design conditions as deﬁned above may require additional insulation; contact Trane for further review.

Note: Liquid line ﬁlter, refrigerant charging valves, wa-

ter temperature sensors, drain and vent connections when insulated must remain accessible for service.

Note: Use only water-base latex paint on factory-applied

insulation. Failure to do so may result in insulation shrinkage.

Note: Units in environments with higher humidity or

very low leaving water temperature may require thicker insulation

Figure 29. Typical RTHD Insulation Requirements

Table 15. Recommended Insulation Types

Location Type Sq. Feet

Evaporator 3/4” wall 90 Compressor 3/4” wall 25 All components and piping on low side

of system (gas pump, return oil line,

lter from pump)

3/4” wall 160

Page 62

62 RTHD-SVX02H-EN

Waterbox Removal and Installation

Introduction

The purpose of this bulletin is to communicate waterbox weights, recommended connection devices, and connection and lifting arrangements for RTHD water cooled chillers.

Important

Only qualied technicians should perform the installation and servicing of equipment referred to this bulletin.

ATTENTION:

Warnings, Cautions and Notices appear at appropriate sections throughout this literature. Read these carefully:

DWARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

DCAUTION

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

NOTICE:

Indicates a situation that could result in equipment or property-damage only

Discussion

This bulletin will discuss recommended hoist ring/clevises and lifting. Proper lifting technique will vary based on mechanical room layout.

• It is the responsibility of the person(s) performing the work to be properly trained in the safe practice of rigging, lifting, securing, and fastening the of water box.

• It is the responsibility of the person(s) providing and using the rigging and lifting devices to inspect these devices to insure they are free from defect and are rated to meet or exceed the published weight of the waterbox.

• Always use rigging and lifting devices in accordance with the applicable instructions for such device.

Procedure

DWARNING

Heavy Objects!

Each of the individual cables (chains or slings) used to lift the waterbox must be capable of supporting the entire weight of the waterbox. The cables (chains or slings) must be rated for overhead lifting applications with an acceptable working load limit. Failure to properly lift waterbox could result in death or serious injury.

DWARNING

Eyebolts!

The proper use and ratings for eyebolts can be found in ANSI/ASME standard B18.15 Maximum load rating for eyebolts are based on a straight vertical lift in a gradually increasing manner. Angular lifts will signicantly lower maximum loads and should be avoided whenever possible. Loads should always be applied to eyebolts in the plane of the eye, not at some angle to this plane. Failure to properly lift waterbox could result in death or serious injury.

Review mechanical room limitations and determine the safest method or methods of rigging and lifting the waterboxes.

1. Determine the type and size of chiller being serviced. Refer to Trane Nameplate located on chiller control panel.

Important: This bulletin contains rigging and lifting information for Trane RTHD water cooled chillers built in Taicang China only. For Trane chillers built outside China, refer to literature provided by the applicable manufacturing location.

2. Select the proper lift connection device from Table

17. The rated lifting capacity of the selected lift con-

nection device must meet or exceed the published weight of the waterbox.

3. Insure the lift connection device has the correct connection for the waterbox. Example: thread type (coarse/ﬁne, English/metric). Bolt diameter (English/ metric).

4. Properly connect the lift connection device to the waterbox. Refer to Figure 30. Insure lift connection device is securely fastened Install hoist ring on to the lifting connection on the waterbox. Torque to 37Nm (28 ft-lbs) for M12 x1.75 (mm) threaded connection.

5. Disconnect water pipes, if connected.

6. Remove waterbox bolts.

7. Lift the waterbox away from the shell.

Page 63

Waterbox Removal and Installation

RTHD-SVX02H-EN 63

Figure 30. Water Box Rigging and Lifting – Vertical Lift

Only

1 = Cables, chains or slings

2 = Eyebolt connection (See ﬁgure 2)

3 = Waterbox

4 = Factory welded connection device

DWARNING

OVERHEAD HAZARD!

Never stand below or in close proximately to heavy objects while they are suspended from, or being lifted by, a lifting device. Failure to follow these instructions could result in death or serious injuries.

8. Store waterbox in a safe and secure location and position.

Do not leave waterbox suspended from lifting device.

Reassembly

Once service is complete the waterbox should be reinstalled on the shell following all previous procedures in reverse. Use new o-rings or gaskets on all joints after thoroughly cleaning each joint.

1. Torque waterbox bolts. Torque bolts in a star pattern. Refer to Table 16 for torque values.

Table 16. RTHD Torque

Unit Bolt Size

(mm)

Evaporator Condenser

RTHD M12x1.75 88 Nm

(65 ft-lbs)

88 Nm (65 ft-lbs)

Parts Ordering Information

This Bulletin is informational only and does not authorize any parts or labor.

Use the Table 17 for part ordering information.

Table 17. Connection Devices

Unit Product Rated

Capacity

Part Number

RTHD Safety Hoist Ring

M12X1.75

674 Kg RNG00003C

(See Figure 31)

Figure 31. Eyebolt connection (Safety hoist ring M12X1.75)

MATERIAL LIST —

1.AMERICAN DRILL BUSHING (ADB), M12X1.75 THREAD, SAFETY HOIST RING, 19mm EFFECTIVE THREAD LENGTH, PART NO. 24012, RATED 1050 Kg.

CUT OFF BOLT TO AN EFFECTIVE THREAD LENGTH OF 13mm.

NOTE:

CAPACITY IS DERATED FROM MANUFACTURER RATING, BECAUSE OF DECREASED EFFECTIVE THREAD LENGTH.

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64 RTHD-SVX02H-EN

DWARNING

Safety Hoist Ring Modication!

The modication shown in Figure 31 must be complete prior to using the hoist ring to lift the waterbox. Failure to make these modication could result in death or serious injuries.

The length of the standard hoist ring bolt must be shortened (modiﬁed) prior to use for lifting waterboxes. Shorting of the bolt as instructed will help insure the base of the hoist right is ﬂat against the waterbox when properly seated. If bases of hoist is not properly seated against waterbox side loading on the bolt may occur which could lead to bolt failure.

Questions

Contact the Product Technical Service department in Taicang, China with questions regarding this Service Bulletin. They can be reached at baojjw@trane.com.

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RTHD-SVX02H-EN 65

Installation Electrical

General Recommendations

For proper electrical component operation, do not locate the unit in areas exposed to dust, dirt, corrosive fumes, or excessive humidity. If any of these conditions exist, corrective action must be taken.

DWARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.

All wiring must comply with local and National Electric Codes. Minimum circuit ampacities and other unit electrical data is on the unit nameplate. See the unit order speciﬁcations for actual electrical data. Speciﬁc electrical schematics and connection diagrams are shipped with the unit.

Typical wiring diagrams are in the back of this manual.

DCAUTION

Use Copper Conductors Only!

Unit terminals are not designed to accept other types of conductors. Failure to use copper conductors may result in equipment damage.

Do not allow conduit to interfere with other components,

structural members or equipment. All conduit must be long enough to allow compressor and starter removal.

Note: To prevent control malfunctions, do not run low

voltage wiring (<30V) in conduit with conductors

carrying more than 30 volts.

Power Supply Wiring

Model RTHD are designed according to NEC Article 31015; therefore, all power supply wiring must be sized and selected accordingly by the project engineer.

For a complete discussion on the use of conductors, see Trane Engineering Bulletin EB-MSCR-40.

Refer to Trane Engineering Bulletin CTV-EB-93 for power wire sizing.

Water Pump Power Supply

Provide power supply wiring with fused disconnect for both the chilled water and condenser water pumps.

Electrical Panel Power Supply

Power supply wiring instructions for the starter/control panel are:

1. Run line voltage wiring in conduit to access opening(s) on starter/control panel or pull-box. See CTVEB-93 for wire sizing and selection information and refer to Table 18 that show typical electrical connec- tion sizes and locations. Always refer to submittal information for your actual unit speciﬁcations.

Table 18. Wire Selection Chart for Starter Panels

Min. Wire Size Copper (75°C)

Supply Leads for All Starters (0 - 2000 Volts) 1 Conduit 3 Wire

1 Conduit 6 Wire

1 Conduit 9 Wire

2 Conduit 6 Wire

2 Conduit 12 Wire

3 Conduit 9 Wire

4 Conduit 12 Wire

8 40 * * * * * * 6 52 * * * * * * 4 68 * * * * * * 3 60 * * * * * * 2 92 * * * * * * 1 104 * * * * * * 0 120 192 252 360 384 360 480 00 140 224 294 420 448 420 560 000 160 256 336 480 512 480 640 0000 184 294 386 552 589 552 736 250 204 326 428 612 653 612 816 300 228 356 479 684 730 684 912 350 248 397 521 744 794 744 992 400 268 429 563 804 858 804 1072 500 304 486 638 912 973 912 1216 Conductors to the starter and motor connected in parallel (electrically joined at both ends to form a single conductor) must be sized 0 (1/0)

or larger per NEC 310-4. Each phase must be equally represented in each conduit.

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66 RTHD-SVX02H-EN

Figure 32. Electrical Installation

7”x10” (178x254mm)

Opening for incoming line voltage

(8) 1/2” Conduit knockouts for use with 30 volt wiring

LINE VOLTAGE

LINE VOLTAGE AND STARTER

SECTION

EVAPORATOR

CONDENSER

CLASS II

30 VAC MAX

LOW VOLTAGE

AREA

CLASS I

132 VAC MAX

CONTROL

VOLTAGE AREA

(6) 1/2” Conduit and (4) 1-1/4” Conduit knockouts for use with 11 5 volt wiring

TD 7 SECTION

DWARNING

Live Electrical Components!

During installation, testing, servicing and troubleshooting of this product, it may be necessary to work with

live electrical components. Have a qualied licensed

electrician or other individual who has been properly trained in handling live electrical components perform these tasks. Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury.

Compressor Motor Phase Sequencing

Always verify that proper rotation of the Series R compressor is established before the machine is started. Proper motor rotation requires conﬁrmation of the electrical phase sequence of the power supply. The motor is internally connected for clockwise rotation with incoming power supply phased A, B, C.

To conﬁrm the correct phase sequence (ABC), use a Model 45 Associated Research Phase indicator or equivalent.

Basically, voltages generated in each phase of a polyphase alternator or circuit are called phase voltages. In a three-phase circuit, three sine wave voltages are generated, differing in phase by 120 electrical degrees. The order in which the three voltages of a three-phase system succeed one another is called phase sequence or phase rotation. This is determined by the direction of rotation of the alternator. When rotation is clockwise, phase sequence is usually called “ABC,” when counterclockwise, “CBA.”

This direction may be reversed outside the alternator by

interchanging any two of the line wires. It is this possible interchange of wiring that makes a phase sequence indicator necessary if the operator is to quickly determine the phase rotation of the motor.

Correcting Improper Electrical Phase Sequence

Proper compressor motor electrical phasing can be quickly determined and corrected before starting the unit. If using an Associated Research Model 45 Phase Sequence Indicator, follow this procedure:

1. Press the STOP button to insure the unit will not attempt to start the compressor.

2. Open the electrical disconnect or circuit protection switch that provides line power to the line power terminal block in the control panel (or to the unit-mounted disconnect).

3. 3. Connect the phase sequence indicator leads to the line power terminal block (or the unit mounted disconnect) as follows:

Phase Seq. Lead 1TB1 Terminal

Black (Phase A) L1 Red (Phase B) L2 Yellow (Phase C) L3

4. Turn power on by closing the unit supply power disconnect switch.

5. Read the phase sequence on the indicator. The “ABC” indicator on the face of the phase indicator will glow if phase is “ABC”.

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DWARNING

Hazardous Voltage!

6. If the “CBA” indicator glows instead, open the unit main power disconnect and switch two line leads on the line power terminal block (or the unit mounted disconnect). Reclose the main power disconnect and recheck phasing.

7. Reopen the unit disconnect and disconnect the phase indicator.

Terminal Lugs

Proper starter/control panel line-side lug sizes are speciﬁed on the starter submittals. These lug sizes must be compatible with conductor sizes speciﬁed by the electrical engineer or contractor. Appropriate lug sizes are provided.

Circuit Breakers and Non-Fused Disconnect Switches (factory installed Option)

Units that are ordered with factory installed Circuit Breakers or Non-Fused Disconnect Switches ship with the handle in the control panel. The handle must be installed prior to starting the unit.

The operating mechanism is already pre installed on the Disconnect/ Circuit Breaker frame.

The hole locations and shafts lengths have already been cut. And the shaft already installed.

DWARNING

Hazardous Voltage!

1. Attach the handel and gasket to the enclosure door and secure with the four bolts, lock washers and nut as shown in Figure 33. Tighten to 75 in-Lbs.

Note: There is an additional lexan spacer on the handel

not shown in the Figure 33, do not remove.

Figure 33. Handle on Door

2. Check that when the enclosure door is closed, the handle interlocks with the shaft in all handel positions except RESET/OPEN. To open the enclosure door when the breaker is in the ON position, rotate the screw slot on the handle plate counter -clockwise. Verify operation.

Table 19. Lug Sizes

RLA Circuit Breaker Non-fused

Disconnect Switch

1-185 (2) 2/0 - 250 MCM or

(1)2/0 - 500

(1) #4 - 350 MCM

186-296 (2) 2/0 - 250 MCM or 2/0 - 500 297-444 (2) 3/0 - 350 MCM 445-592 (2) 1 - 500 MCM 593-888 (4) 4/0 - 500 MCM

RLA Main Lugs Only

1-623 (2) #4-500 MCM 624-888 (4) #4/0-500 MCM

Fused Disconnect Switches

Size fused disconnects in accordance with NEC Article 440-22(a).

Rated Load Amperage (RLA)

The compressor motor RLA for a particular chiller is determined by the ﬁeld selection program and indicated on the compressor nameplate.

Minimum Circuit Ampacity (MCA)

The MCA is equal to 1.25 x the compressor RLA (on nameplate).

Maximum Fuse/Circuit Breaker Size

The maximum fuse/circuit breaker size is equal to 2.25 x the compressor RLA in accordance with UL 1995, para.

36.15.See also NEC 440-22.

The recommended dual element (RDE) fuse size is equal to 1.75 x RLA in accordance with NEC Table 430-152.

For recommended ﬁeld connection lug sizes (RTHD starters) see Table 19.

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68 RTHD-SVX02H-EN

DWARNING

Electrical Shock!

Contacting any of the motor terminals, even with the motor off can cause a severe, potentially fatal, shock. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

IMPORTANT!

WHEN EVACUATING THE CHILLER’S REFRIGERANT SYSTEM, ALWAYS HAVE THE MAIN POWER DISCONNECT/ CIRCUIT BREAKER OPENED.

Even when the compressor is not running, voltage is present at the compressor motor terminals, providing the potential for current to ow through a low impedance path. When removing refrigerant for the chiller both the condenser and chilled water pump must be operating to avoid freeze up.

As the chiller is evacuated below atmospheric pressure, the dielectric strength (resistance to arcing) of the gaseous atmosphere is signiﬁcantly reduced. Because the SCRs are connected “inside the delta,” three of the motor terminals are connected directly to the line voltage. An “arc over” can occur between motor terminals under conditions seen in the evacuation process.

If this occurs the circuit breaker (or other external protective devices) will trip in response to high fault currents, and motor damage may also occur.

This can be avoided through being certain that the chiller is fully disconnected from all power sources

before beginning pumpdown or evacuation procedures, as well as guaranteeing that the disconnect

cannot be accidentally closed while the chiller is in a vacuum.

Figure 34. Y-D Starter Panel Power Wire Routing

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RTHD-SVX02H-EN 69

Figure 35. Solid State Starter Panel Power Wire Routing

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70 RTHD-SVX02H-EN

Module Connections for Interconnecting Wiring

All connectors can be unplugged or the wires can be removed from the screw assembly. If an entire plug is removed, make sure the plug and the associated jack are marked for proper location identiﬁcation during reinstallation.

DCAUTION

Equipment Damage!

Plugs and jacks must be clearly marked before discon-

necting, because specic plugs will t into other jacks.

Possible damage to equipment may occur if the plugs are reversed with the jacks.

Interconnecting Wiring (Field Wiring Required)

Important:

Do not turn chiller on or off using the chilled

water pump interlocks.

When making ﬁeld connections, refer to the appropriate ﬁeld layout, wiring, schematics and controls diagrams that ship with the unit. The diagrams in this manual are typical only and may not match the unit.

Whenever a contact closure (binary output) is referenced, the electrical rating is:

At 120 VAC 7.2 amp resistive

2.88 amp pilot duty 1/3 hp, 7.2 FLA, 43.2 LRA

At 240 VAC 5.0 amp resistive

2.0 amp pilot duty 1/3 hp, 3.6 FLA, 21.6 LRA

Whenever a dry contact input (binary input) is referenced, the electrical rating is 24VDC, 12 mA.

Whenever a control voltage contact input (binary input) is referenced, the electrical rating is 120 VAC, 5mA.

Note: Asterisked connections require the user to pro-

vide an external source of power. The 115V control power transformer is not sized for additional load.

Chilled Water Pump Control

UC800 has a evaporator water pump output relay that closes when the chiller is given a signal to go into the Auto mode of operation from any source. The contact is opened to turn off the pump in the event of most machine level diagnostics to prevent the build up of pump heat. To protect against the build-up of pump heat for those diagnostics that do not stop and/or start the pump and to protect against the condition of a bad ﬂow switch, the pump shall always be stopped when the evaporator pressure is seen to be close to the Low Side Evaporator Pressure relief valve setting.

Chilled Water Flow Interlock

UC800 has an input that will accept a contact closure from a proof-of-ﬂow device such as a ﬂow switch. The ﬂow switch is to be wired in series with the chilled water pump starter’s auxiliary contacts. When this input does not prove ﬂow within 20 minutes relative to transition from Stop to Auto modes of the chiller, or if the ﬂow is lost while the chiller is in the Auto mode of operation, the chiller will be inhibited from running by a non-latching diagnostic. The ﬂow switch input shall be ﬁltered to allow for momentary openings and closings of the switch due to turbulent water ﬂow. This is accomplished with a 6 seconds ﬁltering time. The sensing voltage for the condenser water ﬂow switch is 115/240 VAC.

IMPORTANT!

DO NOT cycle the chiller through starting and stopping the chilled water pump. This could cause the compressor to shut down fully loaded. Use the external stop/start input to cycle the chiller.

Condenser Water Pump Control

UC800 provides a contact closure output to start and stop the condenser water pump. If condenser pumps are arranged in a bank with a common header, the output can be used to control an isolation valve and/or signal another device that an additional pump is required.

Condenser Water Pump Prestart time has been added to help with cold condenser water problems. In very cold outdoor ambients, the cooling towers sump cold water would reach the chiller some time after the low system differential pressure protection had run through its ignore time, and result in an immediate shutdown and latching diagnostic. By simply starting the pump earlier, and allowing mixing of the warmer indoor loop with the cooling tower’s sump, this problem can be avoided.

Condenser Water Flow Interlock

The UC800 shall accept an isolated contact closure input from a customer installed proof-of-ﬂow device such as a ﬂow switch and customer provided pump starter auxiliary contact for interlocking with condenser water ﬂow. The input shall be ﬁltered to allow momentary openings and closings of the switch due to turbulent water ﬂow, etc. This shall be accomplished with a 6 seconds ﬁltering time. The sensing voltage for the condenser water ﬂow switch is 115/240 VAC.

On a call for cooling after the restart inhibit timer has timed out, the UC800 shall energize the condenser water pump relay and then check the condenser water ﬂow switch and pump starter interlock input for ﬂow conﬁrmation. Startup of the compressor will not be allowed until ﬂow has proven.

If ﬂow is not initially established within 1200 seconds (20 minutes) of the condenser pump relay energizing, an automatically resetting diagnostic “Condenser Water

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RTHD-SVX02H-EN 71

Flow Overdue” shall be generated which terminates the prestart mode and de-energizes the condenser water pump relay This diagnostic is automatically reset if ﬂow is established at any later time.

Note: This diagnostic would never automatically reset

if UC800 was in control of the condenser pump through its condenser pump relay since it is commanded off at the time of the diagnostic. It could however reset and allow normal chiller operation if the pump was controlled from some external source.

Heat Recovery Pump Control

UC800 provides a closed contact output for starting and closing the heat recovery pump.

Heat Recovery Water Flow Interlock

UC800 on one input port, receives the user installation ﬂow test device, such as ﬂow switch contact signal and provide pump starter auxiliary contact signal, to interlock cooling water ﬂow. This input must be ﬁltered to prevent the instantaneous disconnection and closure caused by eddy current. The ﬁltering time constant is 6 seconds. The heat recovery ﬂow switch sensor voltage is 115/240vac.

When heat recovery is required, the UC800 unit will energize the heat recovery pump relay, and then check the heat recovery ﬂow switch and pump starter input to conﬁrm the ﬂow. The compressor must not be started before conﬁrming the ﬂow.

If heat recovery water pump relay live within 1200 seconds (20 minutes) after ﬂow can’t established, will appear automatically restore the diagnosis of fault - “delay” heat recovery water information, thus to suspend the pre startup mode and disconnect heat recovery pump relay. The fault will be automatically reset after the ﬂow is established in the following time.

Note: if UC800 is used to control the heat recovery

pump through a heat recovery pump relay, the diagnostic failure will not be automatically reset because it is set to be closed in case of a diagnosis. If the pump is controlled by external source, the fault can be automatically reset and the chiller can be started normally.

Chilled Water Reset (CWR)

The MP will reset the chilled water temperature setpoint based on either return water temperature, or outdoor air temperature. The Return Reset option is standard, Outdoor Reset is optional.

The following is selectable:

• RESET TYPE Setpoint. This can be set to: NO CWR, OUTDOOR AIR TEMPERATURE RESET, RETURN WATER TEMPERATURE RESET, or CONSTANT RETURN WATER TEMPERATURE RESET. The MP shall not permit more than one

type of reset to be selected.

• RESET RATIO Setpoints. For outdoor air temp. reset, both positive and negative reset ratios will be allowed.

• START RESET Setpoints.

• MAXIMUM RESET Setpoints.

The maximum resets shall be with respect to the chilled water setpoint.

When the chiller is running, if any type of CWR is enabled, the MP will step the CWS toward the desired CWS’ (based on the below equations and setup parameters) at a rate of 1 degree F every 5 minutes until the Active CWS equals the desired CWS’. When the chiller is not running the CWS will be fully reset immediately (within one minute). The chiller will then start at the Differential to Start value above a fully reset CWS or CWS’ for Outdoor, Return, and Constant Return Reset.

Equations for calculating CWR

Equation used to get Degrees of Reset:

Outdoor Air:

Degrees of Reset = Reset Ratio * (Start Reset - TOD)

Return Reset:

Degrees of Reset = Reset Ratio * (Start Reset - (TWE TWL))

Constant Return:

Degrees of Reset = 100% * (Design Delta Temp - (TWE TWL))

To obtain Active CWS from Degrees of Reset:

Active CWS = Degrees of Reset + Previous CWS

Note: Previous CWS can either be Front Panel, BAS, or

External

Reset Ratio calculation:

The Reset Ratio on the User Interface is displayed as a percentage. To use it in the above equation it must be converted to its decimal form.

Reset Ratio percent / 100 = Reset Ratio decimal

Example of converting Reset Ratio:

If the Reset Ratio displayed on the User Interface is 50% then use (50/100) = .5 in the equation

TOD = Outdoor Air Temp

TWE = Evap Entering Water Temp

TWL = Evap Leaving Water Temp

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72 RTHD-SVX02H-EN

Table 20. Chiller Events/Status Descriptions

Event/State Description

Alarm - Latching This output is true whenever there is any active diagnostic that requires a manual reset to clear, that effects

the Chiller, the Circuit, or any of the Compressors on a circuit. This classication does not include informational diagnostics.

Alarm - Auto Reset This output is true whenever there is any active diagnostic that could automatically clear, that effects the

Chiller, the Circuit, or any of the Compressors on a circuit. This classication does not include informational

diagnostics. If all of the auto resetting diagnostics were to clear, this output would return to a false condition.

Alarm This output is true whenever there is any diagnostic effecting any component, whether latching or automati-

cally clearing. This classication does not include informational diagnostics.

Warning This output is true whenever there is any informational diagnostic effecting any component, whether latching

or automatically clearing.

Chiller Limit Mode This output is true whenever the chiller has been running in one of the Unloading types of limit modes

(Condenser, Evaporator, Current Limit or Phase Imbalance Limit) continuously for the last 20 minutes. A given limit or overlapping of different limits must be in effect continuously for 20 minutes prior to the output

becoming true. It will become false, if no Unload limits are present for 1 minute. The lter prevents short

duration or transient repetitive limits from indicating. The chiller is considered to be in a limit mode for the purposes of front panel display and annunciation, only if it is fully inhibiting loading by virtue of being in either the “hold” or “forced unload” regions of the limit control, excluding the “limited loading region”. (In previous designs, the “limit load” region of the limit control was included in the criteria for the limit mode call out on the front panel and annunciation outputs)

Compressor Running The output is true whenever any compressors are started or running on the chiller and false when no com-

pressors are either starting or running on the chiller.

This status may or may not reect the true status of the compressor in Service Pumpdown if such a mode

exists for a particular chiller.

Chiller Head Pressure Relief Request Relay

This relay output is energized anytime the chiller is running in one of the following modes; Ice Making Mode

or Condenser Pressure Limit Control Mode continuously for the duration specied by the Chiller Head Relief

Relay Filter Time. The Chiller Head Relief Relay Filter Time is a service setpoint. The relay output is de-en-

ergized anytime the chiller exits all above modes continuously for the duration specied by the same Chiller

Head Relief Relay Filter Time.

The UC800 Service Tool (Tracer TU) is used to install and assign any of the above listed events or status to each of the four relays provided with this option.

The default assignments for the four available relays are listed below.

Table 21. Programable Relays

LLID Name LLID Software

Relay Designation

Output Name Default

Operating Status Programmable Relays

Relay 0 Status Relay 4, J2-1,2,3 Head Pressure Relief Request Relay 1 Status Relay 3, J2-4,5,6 Chiller Limit Mode Relay Relay 2 Status Relay 2, J2-7,8,9 Chiller Alarm Relay (latching or nonlatching) Relay 3 Status Relay 1, J2-10,11,12 Compressor Running Relay

Emergency Stop

The UC800 provides auxiliary control for a customer speciﬁed/installed latching trip out. When this customer-furnished remote contact is provided, the chiller will run normally when the contact is closed. When the contact opens, the unit will trip off on a manually resettable diagnostic. This condition requires manual reset at the chiller switch on the front of the control panel.

External Auto/Stop

If the unit requires the external Auto/Stop function, the installer must provide leads from the remote contacts to

the proper terminals of the LLID on the control panel.

The chiller will run normally when the contacts are closed. When the contact opens, the compressor(s), if operating, will go to the RUN:UNLOAD operating mode and cycle off. Unit operation will be inhibited. Re-closure of the contacts will permit the unit to automatically return to normal operation.

Note: A “panic” stop (similar to “emergency” stop) can

be manually commanded by pressing the STOP button twice in a row, the chiller will immediately shut down, but without creating a latching diagnostic.

Programmable Relays (Alarm and Status) Optional

UC800 provides a ﬂexible alarm or chiller status indication to a remote location through a hard wired interface to a dry contact closure. Four relays are available for this

function, and they are provided (generally with a Quad Relay Output LLID) as part of the Alarm Relay Output Option.

The events/states that can be assigned to the programmable relays are listed in the following table.

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RTHD-SVX02H-EN 73

Soft Loading

Soft loading will prevent the chiller from going to full capacity during the pulldown period.

The UC800 control system has two soft loading algorithms running all of the time. They are capacity control soft loading and current limit soft loading. These algorithms introduce the use of a Filtered Chilled Water Setpoint and a Filtered Current Limit Setpoint. After the compressor has been started, the starting point of the ﬁltered chilled water setpoint is initialized to the value of the Evap Leaving Water Temperature. The ﬁltered current limit setpoint is initialized to the value of the Current Limit Softload Starting Percent. These ﬁltered setpoints allow for a stable pull-down that is user adjustable in duration.

They also eliminate sudden transients due to setpoint changes during normal chiller operation.

Three settings are used to describe the behavior of soft loading. The setup for softloading can be done using TU.

• Capacity Control Softload Time: This setting controls the time constant of the Filtered Chilled Water Setpoint. It is settable between 0 and 120 min.

• Current Limit Control Softload Time: This Setting controls the time constant of the Filtered Current Limit Setpoint. It is settable between 0 and 120 minutes.

• Current Limit Softload Starting Percent: This setting controls the starting point of the Filtered Current Limit Setpoint. It is adjustable from 40 to 100 percent RLA.

External Base Loading - Optional

Primarily for process control requirements, base loading provides for immediate start and loading of a chiller up to an externally or remotely adjustable current limit setpoint without regard to differential to start or stop, or to leaving water temperature control. This allows the ﬂexibility to prestart or preload a chiller in anticipation of a large load application. It also allows you to keep a chiller on line between processes when leaving water temperature control would normally cycle the unit.

When the base loading option is installed through Tracer TU it will be controllable through TD7/TU, External Hardware Interface or Tracer (if Tracer is installed). Order for precedence for all setpoints, TD7/TU then External then Tracer from lowest to highest priority. If one of the higher priority setpoints drops out due to a bad sensor or communication loss then base loading shall go to the next lowest priority of command and setpoint. The command settings and control setpoints associated with base loading are explained below.

Base Loading Control setpoint

This setpoint has three possible sources, an External Analog Input, TD7/TU or Tracer.

• TD7/TU Base Loading Control Setpoint The range is 40 - 100 % Compressor Load (Max %RLA). The default is 50%.

• Tracer Base Loading Control Setpoint The range is 40 - 100 % Compressor Load (Max %RLA). The default is 50%.

• External Base Loading Setpoint This is an Analog Input that sets the base loading setpoint. This signal can be controlled by either a 2-10Vdc or 4-20ma Signal based on conﬁguration information. The equations show the relationship between input and percent compressor load: If the input is conﬁgured as a 4 - 20 mA: % Load = 3.75 * (mA Input) + 25 If the input is conﬁgured as a 2 - 10 Vdc: % Load = 7.5 * (Vdc Input) + 25

Summit Interface - Optional

UC800 provides an optional interface between the chiller and a Trane Summit BAS. A Communications interface LLID shall be used to provide “gateway” functionality between the Chiller and Summit.

LonTalk Communication Interface - Optional

UC800 provides an optional LonTalk Communication Interface (LCI-C) between the chiller and a Building Automation System (BAS). An LCI-C LLID shall be used to provide “gateway” functionality between the LonTalk protocol and the Chiller.

External Chilled Water Setpoint - Optional

UC800 will accept either a 2-10 VDC or a 4-20 mA input (J9-4, J9-5) signal, to adjust the chilled water setpoint from a remote location.

External Current Limit Setpoint - Optional

UC800 will accept either a 2-10VDC or a 4-20mA input (J7-11, J7-12) signal to adjust the current limit setpoint from a remote location.

Percent Condenser Pressure Output - Optional

UC800 provides a 2-10 VDC analog output to indicate percent High Pressure Cutout (HPC) condenser pressure.

Percent HPC = (Condenser Pressure/High Pressure Cutout Setpoint)*100

Compressor Percent RLA Output - Optional

UC800 provides a 0-10 Vdc analog output to indicate % RLA of compressor starter average phase current. 2 to 10 Vdc corresponds to 0 to 120% RLA.

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74 RTHD-SVX02H-EN

Operating Principles Mechanical

This section contains an overview of the operation and maintenance of Series R chillers equipped with microcomputer-based control systems. It describes the overall operating principles of the RTHD water chiller.

Following the section is information regarding specific operating instructions, detailed descriptions of the unit controls and options (Operator Interface - Control Systems), and maintenance procedures that must be performed regularly to keep the unit in top condition (Periodic Maintenance and Maintenance Procedures). Diagnostic information (Diagnostics) is provided to allow the operator to identify system malfunctions.

Note: To ensure proper diagnosis and repair, contact a

qualiﬁed service organization if a problem should occur.

General

The Model RTHD units are single-compressor water-cooled liquid chillers. These units are equipped with unit-mounted starter/control panels.

The basic components of an RTHD unit are:

• Unit-mounted panel containing UC800 controller and Input/Output LLIDS

• Helical-rotary compressor

• Evaporator

• Electronic expansion valve

• Water-cooled condenser with integral subcooler

• Oil supply system

• Oil cooler (application dependent)

• Related interconnecting piping.

Refrigeration (Cooling) Cycle

The refrigeration cycle of the Series R chiller is conceptually similar to that of other Trane chiller products. It makes use of a shell-and-tube evaporator design with refrigerant evaporating on the shell side and water ﬂowing inside tubes having enhanced surfaces.

The compressor is a twin-rotor helical rotary type. It uses a suction gascooled motor that operates at lower motor temperatures under continuous full and part load operating conditions. An oil management system provides an almost oil-free refrigerant to the shells to maximize heat transfer performance, while providing lubrication and rotor sealing to the compressor. The lubrication system ensures long compressor life and contributes to quiet operation.

Condensing is accomplished in a shell-and-tube heat exchanger where refrigerant is condensed on the shell side and water ﬂows internally in the tubes.

Refrigerant is metered through the ﬂow system using an

electronic expansion valve, that maximizes chiller efﬁciency at part load.

A unit-mounted starter and control panel is provided on every chiller. Microprocessor- based unit control modules (UC800) provide for accurate chilled water control as well as monitoring, protection and adaptive limit functions. The “adaptive” nature of the controls intelligently prevents the chiller from operating outside of its limits, or compensates for unusual operating conditions, while keeping the chiller running rather than simply tripping due to a safety concern. When problems do occur, diagnostic messages assist the operator in troubleshooting.

Cycle Description

The refrigeration cycle for the RTHD chiller can be described using the pressure- enthalpy diagram shown in

Figure 36 Key State Points are indicated on the ﬁgure

and are referenced in the discussion following. A schematic of the system showing the refrigerant ﬂow loop as well as the lubricant ﬂow loop is shown in Figure 37.

Figure 36. Pressure /Enthalpy Curve

Pressure

Enthalpy

Liquid

Gas

Evaporation of refrigerant occurs in the evaporator. A metered amount of refrigerant liquid enters a distribution system in the evaporator shell and is then distributed to the tubes in the evaporator tube bundle. The refrigerant vaporizes as it cools the water ﬂowing through the evaporator tubes. Refrigerant vapor leaves the evaporator as saturated vapor (State Pt. 1).

The refrigerant vapor generated in the evaporator ﬂows to the suction end of the compressor where it enters the motor compartment of the suction-gascooled motor. The refrigerant ﬂows across the motor, providing the necessary cooling, then enters the compression chamber. Refrigerant is compressed in the compressor to discharge pressure conditions. Simultaneously, lubricant is injected into the compressor for two purposes: (1) to lubricate the rolling element bearings, and (2) to seal the very small clearances between the compressor’s twin rotors. Immediately following the compression process

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RTHD-SVX02H-EN 75

the lubricant and refrigerant are effectively divided using an oil separator. The oil-free refrigerant vapor enters the condenser at State Pt. 2. The lubrication and oil management issues are discussed in more detail in the compressor description and oil management sections that follow.

Bafﬂes within the condenser shell distribute the compressed refrigerant vapor evenly across the condenser tube bundle. Cooling tower water, circulating through the condenser tubes, absorbs heat from this refrigerant and condenses it.

As the refrigerant leaves the bottom of the condenser (State Pt. 3), it enters an integral subcooler where it is subcooled before traveling to the electronic expansion valve (State Pt. 4). The pressure drop created by the expansion process vaporizes a portion of the liquid refrigerant. The resulting mixture of liquid and gaseous refrigerant then enters the Evaporator Distribution system (State Pt. 5). The ﬂash gas from the expansion process is internally routed to compressor suction, and while the liquid refrigerant is distributed over the tube bundle in the evaporator.

The RTHD chiller maximizes the evaporator heat transfer performance while minimizing refrigerant charge requirements. This is accomplished by metering the liquid refrigerant ﬂow to the evaporator’s distribution system using the electronic expansion valve. A relatively low liquid level is maintained in the evaporator shell, which contains a bit of surplus refrigerant liquid and accumulated lubricant. A liquid level measurement device monitors this level and provides feedback information to the UC800 unit controller, which commands the electronic expansion valve to reposition when necessary. If the level rises, the expansion valve is closed slightly, and if the level is dropping, the valve is opened slightly such that a steady level is maintained.

Figure 37. Refrigerant Flow Diagram

condenser

s e p a r

t o

e p a r

evaporator

compressor

gas pump

EXV

dual discharge li nes only on C, D & E frame compressors

dual discharg e lines

only on C, D & E fram

compressor s

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76 RTHD-SVX02H-EN

Compressor Description

Figure 38. Compressor Description

Male Rotor

Female Rotor

Bearings

Load

lenoid

Piston Housing

Bearing Housing

Rotor Housing

Suction

Motor Housing

Slide Valve

Motor Stator

Discharge Plenum

Unloader Piston

Primary Mounting Holes

Oil Reclaim Port

Bearing Lubricant Port

Rotor Injection Port

Discharge Check Valve

Unload

Solenoid

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RTHD-SVX02H-EN 77

The compressor used by the Series R chiller consists of three distinct sections: the motor, the rotors and the bearing housing. Refer to Figure 38.

Compressor Motor

A two-pole, hermetic, squirrel-cage induction motor directly drives the compressor rotors. The motor is cooled by suction vapor drawn from the evaporator and entering the end of the motor housing (Figure 38) .

Compressor Rotors

Each Series R chiller uses a semi-hermetic, direct-drive helical rotary type compressor. Excluding the bearings, each compressor has only 3 moving parts: 2 rotors “male” and “female” - provide compression, and a slide valve that controls capacity. See Figure 38. The male rotor is attached to, and driven by the motor, and the female rotor is, in turn, driven by the male rotor. Separately housed bearing sets are provided at each end of both rotors on the RTHD units. The slide valve is located below (and moves along) the rotors.

The helical rotary compressor is a positive displacement device. Refrigerant from the evaporator is drawn into the suction opening at the end of the motor section. The gas is drawn across the motor, cooling it, and then into the rotor section. It is then compressed and released directly into the discharge plenum.

There is no physical contact between the rotors and compressor housing. Oil is injected into the bottom of the compressor rotor section, coating both rotors and the compressor housing interior. Although this oil does provide rotor lubrication, its primary purpose is to seal the clearance spaces between the rotors and compressor housing. A positive seal between these internal parts enhances compressor efﬁciency by limiting leakage between the high pressure and low pressure cavities.

Capacity control is accomplished by means of a slide valve assembly located in the rotor/bearing housing sections of the compressor. Positioned along the bottom of the rotors, the slide valve is driven by a piston/cylinder along an axis that parallels those of the rotors (Figure

38).

Compressor load condition is dictated by the coverage of the rotors by the slide valve. When the slide valve fully covers the rotors, the compressor is fully loaded. Unloading occurs as the slide valve moves away from the suction end of the rotors. Slide valve unloading lowers refrigeration capacity by reducing the compression surface of the rotors.

Slide Valve Movement

Movement of the slide valve piston (Figure 38) determines slide valve position which, in turn, regulates compressor capacity. Compressed vapor ﬂowing in to and out of the cylinder governs piston movement, and is controlled by the load and unload solenoid valves.

The solenoid valves (both normally closed) receive “load” and “unload” signals from the UC800, based on system cooling requirements. To load the compressor, the UC800 opens the load solenoid valve. The pressurized vapor ﬂow then enters the cylinder and, with the help of the lower suction pressure acting on the face of the unloader valve, moves the slide valve over the rotors toward the suction end of the compressor.

The compressor is unloaded when the unload solenoid valve is open. Vapor “trapped” within the cylinder is drawn out into the lower-pressure suction area of the compressor. As the pressurized vapor leaves the cylinder, the slide valve slowly moves away from the rotors toward the discharge end of the rotors.

When both solenoid valves are closed, the present level of compressor loading is maintained.

On compressor shutdown, the unload solenoid valve is energized. Springs assist in moving the slide valve to the fully-unloaded position, so the unit always starts fully unloaded.

Oil Management System

Oil Separator

The oil separator consists of a vertical cylinder surrounding an exit passageway. Once oil is injected into the compressor rotors, it mixes with compressed refrigerant vapor and is discharged directly into the oil separator. As the refrigerant-and-oil mixture is discharged into the oil separator, the oil is forced outward by centrifugal force, collects on the walls of the cylinder and drains to the bottom of the oil separator cylinder. The accumulated oil then drains out of the cylinder and collects in the oil sump located near the top and in-between the evaporator and condenser shells.

Oil that collects in the oil tank sump is at condensing pressure during compressor operation; therefore, oil is constantly moving to lower pressure areas.

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78 RTHD-SVX02H-EN

Figure 39. Oil Flow Diagram

Evaporator

Pressure

Transducer Pe

Evaporator

RTHD Oil System

Oil Filter

Optional Oil Cooler

Oil Heaters

Master Oil Line

Solenoid

Oil Separators

Oil Sump

Vent to

Condenser

To Bearings

Injection to

Rotors

Oil Return

Gas Pump

Vent Line

To Condenser

Pressure

Oil/Refrigerant

Mixture

Oil Recovery

Fill Solenoid

Valve

Drain Solenoid

Valve

Liquid/Vapor

Refrigerant Mixture

Condenser

EXV

Primary Oil System

Refrigerant & Oil Mixture-Oil Recovery System

Manual Service Valve

Optical Oil

Detector

Oil Pressure

Transducer

Condenser

Pressure

Transducer

Other

Oil Return Filter

restrictor

Compressor

Discharge

Temperature

Sensor

Manual Service Valve

Oil Flow Protection

Oil ﬂowing through the lubrication circuit ﬂows from the oil sump to the compressor (see Figure 39). As the oil leaves the sump, it passes through a service valve, an oil cooler (if used), oil ﬁlter, master solenoid valve, and another service valve. Oil ﬂow then splits into two distinct paths, each performing a separate function: (1) bearing lubrication and cooling, and (2) compressor oil injection.

Oil ﬂow and quality is proven through a combination of a number of sensors, most notably a pressure transducer and the optical oil level sensor.

If for any reason oil ﬂow is obstructed because of a plugged oil ﬁlter, closed service valve, faulty master solenoid, or other source, the oil pressure transducer will read an excessively high pressure drop in the oil system (relative to the total system pressure) and shut down the chiller.

Likewise, the optical oil level sensor can detect the lack of oil in the primary oil system (which could result from improper oil charging after servicing, or oil logging in other parts of the system). The sensor will prevent the compressor from starting or running unless an adequate

volume of oil is present. The combination of these two devices, as well as diagnostics associated with extended low system differential pressure and low superheat conditions, can protect the compressor from damage due to severe conditions, component failures, or improper operation.

If the compressor stops for any reason, the master solenoid valve closes; this isolates the oil charge in the sump during “off” periods. With the oil efﬁciently contained in the sump, oil is immediately available to the compressor at startup. Such ﬂows would otherwise purge oil from the lines and the oil sump, which is an undesirable effect.

To ensure the required system differential pressure is adequate to move oil to the compressor, the UC800 attempts to both control a minimum system differential pressure as well as monitor it. Based on readings from pressure transducers in both the evaporator and condenser , the EXV is modulated to maintain evaporator pressure at a minimum of 25 psid below the condenser pressure. Once the minimum is met, the EXV will return to normal liquid level control (see the paragraph on “Cycle Description”. If the differential is signiﬁcantly lower than required, the unit will trip and initiate a appropri-

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RTHD-SVX02H-EN 79

ate diagnostics and would enforce a compressor “cool down” period.

To ensure proper lubrication and minimize refrigerant condensation in the oil sump, heaters are mounted on the bottom of the oil sump. An auxilliary contact of the compressor starter, energizes these heaters during the compressor off cycle to maintain a proper elevation of the oil temperature. The heater element is continuously energized while the compressor is off and does not cycle on temperature.

Oil Filter

All Series R chillers are equipped with replaceable-element oil ﬁlters. Each removes any impurities that could foul the compressor internal oil supply galleries. This also prevents excessive wear of compressor rotor and bearing surfaces and promotes long bearing life. Refer to the Section 9 for recommended ﬁlter element replacement intervals.

Compressor Bearing Oil Supply

Oil is injected into the rotor housing where it is routed to the bearing groups located in the motor and bearing housing sections. Each bearing housing is vented to compressor suction so oil leaving the bearings returns through the compressor rotors to the oil separator.

Compressor Rotor Oil Supply

Oil ﬂowing through this circuit enters the bottom of the compressor rotor housing. From there it is injected along the rotors to seal clearance spaces around the rotors and lubricate the contact line between the male and female rotors.

Lubricant Recovery

Despite the high efﬁciency of the oil separators, a small percentage of oil will get past them, move through the condenser, and eventually end up in the evaporator. This oil must be recovered and returned to the oil sump. The function of active oil return is accomplished by a pressure-actuated pump referred to as the “gas pump.”

The gas pump, mounted just beneath the evaporator, is a cylinder with four ports controlled by two solenoids. The pump serves to return accumulating oil in the evaporator to the compressor at regular time intervals. As the refrigerant- oil mixture enters the gas pump from the bottom of the evaporator, a ﬁll solenoid opens to allow refrigerant vapor to be vented into the top of the evaporator, and is then closed. A second solenoid then opens to allow refrigerant at condenser pressure to enter the gas pump. Simultaneously, a check valve prevents reverse ﬂow back into the evaporator. A liquid refrigerant and oil mixture is displaced from the gas pump cylinder and is directed through a ﬁlter to the compressor. The oil then combines with oil injected into the compressor and returns to the oil sump via the oil separators.

Oil Cooler

The oil cooler is a brazed plate heat exchanger located near the oil ﬁlter. It is designed to transfer approximately one ton of heat from the oil to the suction side of the system. Subcooled liquid is the cooling source.

The oil cooler is required on units running at high condensing or low suction temperatures. The high discharge temperatures in these applications increase oil temperatures above the recommended limits for adequate lubrication and reduce the viscosity of the oil.

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80 RTHD-SVX02H-EN

Operator Interface Controls

UC800 Overview

Power Supply

The UC800 (1A22) receives 24 Vac (210 mA) power from the 1A2 power supply located in the chiller control panel.

Wiring and Port Descriptions

Figure 40 illustrates the UC800 controller ports, LEDs,

rotary switches, and wiring terminals.The numbered list following Figure 40 corresponds to the numbered callouts in the illustration.

Figure 40. Wiring locations and connection ports

Front view

Bottom View

1. Rotary Switches for setting BACnet®MAC address or MODBUS ID.

2. LINK for BACnet MS/TP, or MODBUS Slave (two terminals, ±). Field wired if used.

3. LINK for BACnet MS/TP, or MODBUS Slave (two terminals, ±). Field wired if used.

4. Machine bus for existing machine LLIDs (IPC3Tracer bus 19.200 baud). IPC3 Bus: used for Comm4 usingTCI or LonTalk®using LCI-C.

5. Power (210 mA at 24 Vdc) and ground terminations (same bus as item 4). Factory wired.

6. Not used.

7. Marquee LED power and UC800 Status indicator (Ta -

ble 22).

8. Status LEDs for the BAS link, MBus link, and IMC link.

9. USB device type B connection for the service tool (Tracer TU).

10. The Ethernet connection can only be used with theTracerAdaptiView display.

11. USB Host (not used).

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Communication Interfaces

There are four connections on the UC800 that support the communication interfaces listed. Refer to Figure 40, for the locations of each of these ports.

• BACnet MS/TP

• MODBUS Slave

• LonTalk using LCI-C (from the IPC3 bus) .

Rotary Switches

There are three rotary switches on the front of the UC800 controller. Use these switches to deﬁne a three-digit address when the UC800 is installed in a BACnet or MODBUS system (e.g., 107, 127, etc.). Note: Valid addresses are 001 to 127 for BACnet and 001 to 247 for MODBUS.

LED Description and Operation

There are 10 LEDs on the front of the UC800. Figure 41 shows the locations of each LED and Table 22, describes their behavior in speciﬁc instances.

Figure 41. LED Locations

Table 22. LED Behavior

LED UC800 Status

Powered. If the Marquee LED is green solid, the UC800 is powered and no problems exist. Marquee LEDLow power or malfunction. If the Marquee LED is red solid, the UC800 is powered, but there are problems present. Alarm. The Marquee LED blinks Red when an alarm exists.

LINK, MBUS, IMCThe TX LED blinks green at the data transfer rate when the UC800 transfers data to other devices on the link. The Rx LED blinks yellow at the data transfer rate when the UC800 receives data from other devices on the link.

Ethernet LinkThe LINK LED is solid green if the Ethernet link is connected and communicating. The ACT LED blinks yellow at the data transfer rate when data

ow is active on the link.

ServiceThe Service LED is solid green when pressed. For quali-

ed service technicians only. Do not use.

NOTICE:

Electrical Noise! Maintain at least 6 inches between low-voltage (<30V) and high voltage circuits. Failure to do so could result in electrical noise that could distort the signals carried by the low-voltage wiring, including IPC.

Controls Interface

TD7 Display

Each chiller is equipped with the TD7 interface. TD7 has the capability to display additional information to the advanced operator including the ability to adjust settings. Multiple screens are available and text is presented in multiple languages as factory-ordered or can be easily downloaded online.

Tracer TU

Tracer TU can be connected to the UC800 and provides further data, adjustment capabilities, diagnostics information, downloadable software.

Tracer AdaptiView™TD7

Operator Interface

Information is tailored to operators, service technicians, and owners. When operating a chiller, there is speciﬁc information you need on a day-to-day basis—setpoints, limits, diagnostic information, and reports. Day-to-day operational information is presented at the display. Logically organized groups of information— chiller modes of operation, active diagnostics, settings and reports put information conveniently at your ﬁngertips.

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82 RTHD-SVX02H-EN

Main Display Area/Home Screen

All screens appear within the main display area (shown as location in Figure 43).

Home screen: Chiller status information

The home screen (Figure 43) provides the most frequently needed chiller status information on “touch targets” (the entire white rectangular areas) for each chiller component. Touching any touch target displays a screen containing more chiller status information related to each component .

Figure 43. Main Screen

Table 23. Main Screen Items

Description Resolution Units

Active Chilled Water Setpoint X.X

F / °C Active Current Limit Setpoint X.X %RLA Average Motor Current %RLA X.X %RLA Evap Entering/Leaving Water Temp X.X

F / °C Cond Entering/Leaving Water Temp X.X

F / °C Frequency Command X.X Hz Evaporator Water Flow Status X.X Condenser Water Flow Status

Viewing Chiller Operating Modes

On the Reports screen, touch Chiller Operating Modes to view the current operating status of the chiller in terms of the top-level operating mode and submodes.

Note: You can also access the Chiller Operating Modes

screen from the chiller status button in the upper left corner of the screen.

Figure 44. Chiller Operating Modes screen

Figure 42. TD7

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Table 24. Operating Modes

Chiller Modes Description

MP Resetting

Stopped The chiller is not running and cannot run without intervention. Further information

is provided by the sub-mode:

Local Stop Chiller is stopped by TD7 Stop button command– cannot be remotely overridden. immediate Stop Chiller is stopped by the TD7 Panic Stop (by pressing Stop button twice in succession) – pre-

vious shutdown was manually commanded to shutdown immediately without a run-unload or pumpdown cycle - cannot be remotely overridden.

Diagnostic Shutdown – Manual Reset The chiller is stopped by a diagnostic that requires manual intervention to reset.

Run Inhibit The chiller is currently being inhibited from starting (and running*), but may be

allowed to start if the inhibiting or diagnostic condition is cleared. Further information is provided by the sub-mode:

Diagnostic Shutdown – Auto Reset The entire chiller is stopped by a diagnostic that may automatically clear. Starting is Inhibited by External Source The chiller is inhibited from starting (and running) by the “external stop” hardwired input. Start Inhibited by BAS The chiller is inhibited from starting (and running) by command from a Building Automation

System via the digital communication link (com 4 or com 5).

Waiting for BAS Communications This is a transient mode - 15-min. max, and is only possible if the chiller is in the Auto -

Remote command mode. After a power up reset, it is necessary to wait for valid communication from a Building Automation System (Tracer) to know whether to run or stay inhibited. Either valid communication will be received from the Building Automation System (e.g. Tracer), or a communication diagnostic ultimately will result. In the latter case the chiller will revert to Local control.

Power Up Delay Inhibit min:sec The compressor is currently being inhibited from starting as part of the power up start delay

(or staggered start) feature. This feature is intended to prevent multiple chillers from all starting simultaneously if power is restored to all chillers simultaneously.

Low Differential Refrigerant Pressure CoolDown Timemin:sec

See Oil Flow Protection (Spec Page 78)

Auto The chiller is not currently running but can be expected to start at any moment

given that the proper conditions and interlocks are satised. Further information is

provided by the sub-mode:

Waiting For Evap Water Flow The chiller will wait up to 20 minutes in this mode for evaporator water ow to be established

per the ow switch hardwired input.

Waiting for A Need to Cool The chiller will wait indenitely in this mode, for an evaporator leaving water temperature

higher than the Chilled Water Setpoint plus the Differential to Start.

Waiting to Start The chiller is not currently running and there is a call for cooling but start is de-

layed by certain interlocks or proofs. Further information is provided by the submode:

Waiting For Cond Water Flow The chiller will wait up to 20 minutes in this mode for condenser water ow to be established

per the ow switch hardwired input.

Start Inhibited Waiting for Oil The chiller will wait up to 2 minutes in this mode for oil level to appear in the oil tank. Condenser Water Pump Pre-Run

Timemin:sec

The chiller will wait up to 30 minutes (user adjustable) in this mode for to allow the condenser water loop to equalize in temperature

Restart Inhibit min:sec The compressor is currently unable to start due to its restart inhibit timer. A given com-

pressor is not allowed to start until 5 minutes (adj) has expired since its last start, once a number of “free starts” have been used up.

Waiting For EXV Preposition The Chiller will wait for the time it takes the EXV to get to its commanded pre-position prior

to starting the compressor. This is typically a relatively short delay and no countdown timer is necessary (less than 15 seconds)

Minimum Condenser Watermin:sec Only possible when Condenser Head Pressure Control option is enabled, this wait may be

necessary due to the Head Pressure control device’s stroke time.

Condenser Water Regulating Control min:sec

Only possible when Condenser Head Pressure Control option is enabled, this wait may be necessary due to the Head Pressure control device’s stroke time

Running The chiller, circuit, and compressor are currently running. Further information is

provided by the sub-mode:

High Discharge Temp Limit The compressor is running and is being forced loaded to its step load point, without regard

to the leaving water temperature control, to prevent tripping on high compressor discharge temperature.

Base Loaded Chiller is running in “Base Load” operation where the capacity of the chiller is controlled to

maintain a given current per an adjustable set point. The chiller is forced to run without regard to the chilled water temperatures and the differential to start and stop

Capacity Control Softloading The chiller is running, but loading is inuenced by a gradual ‘pulldown” lter on the chilled

water temperature setpoint The settling time of this lter is user adjustable as part of the

softload control feature.

Current Control Softloading The chiller is running, but loading is inuenced by a gradual lter on the current limit set-

point The starting current and the settling time of this lter is user adjustable as part of the

softload control feature.

Waiting For Heat Recovery Water Flow In this mode, the unit will wait for the establishment of heat recovery ow and the input of

the hardware interface of the ow switch.

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84 RTHD-SVX02H-EN

Table 24. Operating Modes

Chiller Modes Description

Heat Recovery Water Pump PreRun Time 2 min:sec

In this mode, the chiller will wait for a period of time (the user can adjust) to meet the tem-

perature requirements of the heat recovery water circuit. Heat Recovery Active The heat recovery is running. Normal To Heat Recovery Transition The unit is in the conversion process of refrigeration mode to heat recovery mode. Heat Recovery To Normal Transition The unit is in the conversion process of heat recovery mode to refrigeration mode. EXV Controlling Differential Pressure Liquid level control of the Electronic Expansion Valve has temporarily been suspended. The

EXV is being modulated to control for a minimum differential pressure. This control implies

low liquid levels and higher approach temperatures, but is necessary to provide minimum oil

ow for the compressor until the condenser water loop can warm up to approx 50F.

Chilled Water Control Unit is running in the Cooling Mode of operation and is attempting to control to the active

Chilled Water Setpoint. (Note this mode was not necessary prior to the introduction of Hot

Water Control)

Running – Limited The chiller, circuit, and compressor are currently running, but the operation of the

chiller/compressor is being actively limited by the controls. Further information is

provided by the sub-mode.* See the section below regarding criteria for annuncia-

tion of limit modes

Condenser Pressure Limit The circuit is experiencing condenser pressures at or near the condenser limit setting. Com-

pressors on the circuit will be unloaded to prevent exceeding the limits.* Low Evaporator Refrigerant Temperature

Inhibit

The circuit is experiencing saturated evaporator temperatures at or near the Low Refrigerant

Temperature Cutout setting. Compressors on the circuit will be unloaded to prevent tripping.

* Capacity Limited by Low Liquid Level The circuit is experiencing low refrigerant liquid levels and the EXV is at or near full open.

The compressors on the circuit will be unloaded to prevent tripping.* Current Limit The compressor is running and its capacity is being limited by high currents. The current

limit setting is 100% RLA (to avoid overcurrent trips) or lower as set by the compressor’s

“share” of the active current limit (demand limit) setting for the entire chiller.* Phase Unbalance Limit The compressor is running and its capacity is being limited by excessive phase current unbal-

ance.* Low Discharge Superheat Limit This is limit control that acts to prevent chiller shutdown when the discharge superheat ap-

proaches the limit setpoint by reducing the liquid level and unloading the slide valve. Oil Loss Avoidance This is limit control that acts to prevent chiller shutdown when the estimated refrigerant ow

approaches the calculated minimum ow by increasing the slide valve capacity and/or VFD

frequency Note: Other normal running modes (see above) may also appear under this top level mode

Shutting Down The chiller is still running but shutdown is imminent. The chiller is going through a

compressor run-unload. sequence. Shutdown is necessary due to one (or more) of

the following sub-modes:

Local Stop Chiller is in the process of being stopped by TD7 Stop button command immediate Stop Chiller is in the process of being stopped by TD7 Panic Stop command Diagnostic Shutdown – Manual Reset Chiller is in the process of being stopped by a Latching Diagnostic shutdown – Manual Reset

is required to clear Diagnostic Shutdown – Auto Reset Chiller is in the process of being stopped by a Diagnostic shutdown – Automatic clearing of

the diagnostic is possible if condition clears. Compressor Unloading min:sec The compressor is in its “run – unload” state in which it is being continuously unloaded for

40 sec prior to shutdown. Starting is Inhibited by External Source Chiller is in the process of being stopped by the External Stop hardwired input Start Inhibited by BAS The Chiller is in the process of shutdown due to a command from the Building Automation

System (e.g. Tracer) Evaporator Water Pump Off Delay min:sec

Service Override The Chiller is in a Service Override mode

Service Pumpdown The chiller, circuit, and compressor is running via a manual command to perform a Service

Pumpdown. Both evap and condenser water pumps are commanded to be running. The EXV

is being held wide open, but the manual liquid line service valve should be closed.

For heat recovery unit, may have below operation modes:

1. Cooling

2. Cooling + Heat recovery

3. Heating

Conditions for entering heat recovery(below conditions should both meet):

1. Chiller is at cooling mode

2. Heat recovery option enabled

3. Chiller is running

4. Customer water tank temperature <set point-margin

5. Heat recovery water ﬂow detected

6. No diagnostic

7. Heat recovery ignore time expired

Condition for exiting heat recovery(below condition just need meet any one):

1. Customer water tank temp>=set point + margin

2. Condenser pressure >170psig

3. Heat recovery option disabled

4. Chiller stop

5. Chiller has diagnostic

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RTHD-SVX02H-EN 85

Alarms

You can use the display to view alarms and to reset them. Alarms are communicated to the display immediately upon detection.

Viewing the Alarms Screen

Touch the Alarms button in the main menu area (Figure

43) to view the Alarms screen. A table of active alarms

appears that is organized chronologically with the most recent at the top of the list, as shown in Figure 45. This example shows the default view, which appears each time you return to the screen.

Note: A page number appears in the lower right corner

of the screen. If a screen contains more than one page, up/down arrows also appear for viewing the other pages.

Figure 45. Alarm Screen

The Alarms screen is accessible by depressing the Alarms enunciator. A verbal description will be provided.

A scrollable list of the last active Alarms is presented. Performing a “Reset Alarms” will reset all active Alarms regardless of type, machine or circuit. The scrollable list will be sorted by time of occurrence.

If a informational warning is present, the “Alarms” key will be present but not ﬂashing. If a Alarm shutdown (normal or immediate)has occurred, the “Alarm” key will display that is ﬂashing. If no Alarms exist, the “Alarm” key will not be present.

Reports

You can use the Tracer display to view a variety of reports and to create and edit a custom report. All reports contain live data that refreshes every 2–5 seconds.

Viewing the Reports Screen

Touch the Reports button in the main menu area (Figure

4) to view the Reports screen. The Reports screen contains the following buttons:

• Custom Report1

• Custom Report2

• Custom Report3

• Evaporator

• Condenser

• Compressor

• Motor

• About

• Operating Modes

• Log Sheet

• ASHRAE Chiller Log

Each button links to the report named on the button.

Figure 46. Report Screen

The Reports tab allows a user to select from a list of reports headings. Each report will generate a list of status items as deﬁned in the tables that follow.

Editing a Custom Report

You can edit the custom report by adding, removing, or re-order data as follows:

6. On the Custom Report screen, touch Edit. The Edit Custom Report screen appears.

7. Add, remove, or re-order as follows:

• To add an item to the custom report, touch it. It responds by changing to blue. You an use the arrows to scroll through the rest of the items that can be added to the custom report. Then touch Add to move the selected item to the box on the right side of the screen. To add all of the remaining items in the left box to the custom report, touch Add All.

• To remove an item from the custom report, touch it. It responds by changing to blue. You can use the arrows to scroll through the rest of the items that can be removed from the custom report. Then touch Remove to move the selected item to the box on the left side of the screen.

• To re-order items in the custom report, touch it. It responds by changing to blue. Use the arrows to change the order of a highlighted item.

8. To save and view your edited custom report, touch

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Save.

Figure 47. Edit Custom Report screen

Figure 48. Report Evaporator Screen

Table 25. Report Evaporator Screen Items

Description Resolution Units

Active Chilled Water Setpoint X.X

F / °C

Evaporator Entering Water Temperature

X.X

F / °C

Evaporator Leaving Water Temperature

X.X

F / °C

Evaporator Water Flow Status Flow, No Flow

Text

Evaporator Water Pump Override Auto, On

Text

Evaporator Approach Temperature X.X

F / °C

EXV Position Percent X.X

Evaporator Refrigerant Pressure XXX.X PSIA/

kPaA

Evaporator Saturated Rfgt Temp X.X

F / °C

Evaporator Refrigerant Liquid Level X.XX in/mm

Figure 49. Report Condenser Screen

Table 26. Report Condenser Screen Items

Description Resolution Units

Condenser Entering Water Temperature

X.X °F / °C

Condenser Leaving Water Temperature

X.X °F / °C

Condenser Water Flow Status Flow, No Flow Text Condenser Water Pump Override Auto, On Text Condenser Approach Temperature X.X °F / °C EXV Position Percent X.X % CondenserRefrigerant Pressure XXX.X PSIA/kPaA Condenser Saturated Rfgt Temp X.X °F / °C Differential Refrigerant Pressure XXX.X PSIA/kPaA Outdoor Air Temperature X.X °F / °C Recovery Active Active Active/InActive Text Active Heat Recovery Setpoint X.X °F / °C Heat Recovery Tank Water Temp X.X °F / °C Heat Recovery Water Flow Switch Flow/No Flow Text Heat Recovery Entering Water

Temp

X.X °F / °C

Heat Recovery Leaving Water Temp

X.X °F / °C

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Figure 50. Report Compressor Screen

Table 27. Report Compressor Screen Items

Description Resolution Units

Compressor Running Status On,Off Text Average Motor Current %RLA XX.X% %RLA Compressor Starts XX Text Compressor Running Time XX:XX Hr:Min Oil Loss Level Sensor Wet, Dry Text Discharge Temperature X.X

F / °C

Discharge Temperature X.X

F / °C Compressor Oil Pressure XXX.X PSIA/kPaA Evaporator Refrigerant Pressure XXX.X PSIA/kPaA Condenser Refrigerant Pressure XXX.X PSIA/kPaA Differential Refrigerant Pressure XXX.X PSIA/kPaA

Figure 51. Report Motor Screen

Table 28. Report Motor Screen Items

Description Resolution Units

Active Current Limit Setpoint X.X %RLA Average Motor Current %RLA X.X %RLA Starter Motor Current L1 %RLA X.X %RLA Starter Motor Current L2 %RLA X.X %RLA Starter Motor Current L3 %RLA X.X %RLA Starter Motor Current L1 X.X A Starter Motor Current L1 X.X A Starter Motor Current L1 X.X A Starter Input Voltage AB XXX.X V Starter Input Voltage BC XXX.X V Starter Input Voltage CA XXX.X V Average Motor Current X.X A Average Phase Voltage XXX.X V

Equipment Settings

You can use the TD7 display to monitor and change a variety of equipment settings.

Viewing the Settings Screen

Touch the Settings button in the main menu area (see

Figure 43) to view the Settings screen. Equipment Set-

tings identiﬁes a column of buttons located on the screen (see the outlined column in Figure 52). The buttons are:

• Chiller Settings

• Feature Settings

• Chiller Water Reset

• Manual Control Settings

Each of these buttons provide access to a screen that contains additional buttons related to eachtopic. This section provides detailed information about these screens.

Figure 52. Setting Screen

Viewing and Changing Equipment Settings

Each button in the Equipment Settings column on the Settings screen takes you to a menu screen that contains a group of buttons. Each button displays the name of a setting and its current value(Figure 53). Touch any button to view a screen where you can change the setting for the featureshown on the button.

Note: A page number appears in the lower right corner

of the screen. If a screen contains more than one page, up/down arrows also appear for viewing the other pages, as in Figure 53

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Figure 53. Example equipment settings screen (Chiller

Settings shown)

To change an equipment setting, follow this procedure:

1. Touch one of the button in the Equipment Settings column on the Settings screen, such as Chiller Settings. The corresponding screen appears (in this case, the Chiller Settings screen).

2. Touch the button that shows the equipment setting you want to change. A screen that allows you to change the equipment setting appears. There are two types of these screens:

• For screens with button selections (Figure 54), touch the button that represents the setting you want. The button becomes shaded, and a Save button appears at the bottom of thescreen.

• For screens with numerical keypads (Figure 55), touch the appropriate numbers to change the current value. The new value appears above the keypad.

3. Touch Save to complete the change. The current value is updated in the upper left side of thescreen, demonstrating that the change has been communicated to the Tracer UC800 controller. The screen you were previously viewing appears.

Figure 54. Chilled Water Setpoint Screen

Figure 55. Changed Chilled Water Setpoint Screen

Figure 56. Heat Reclaim Setpoint Screen

Keypad features:

• When you enter a new number, the value in the New value ﬁeld is deleted and replaced with the new entry.

• The backspace (arrow) key deletes the characters you previously entered.

• If the keypad is used to enter a setpoint that is out of range, an error dialog will appear when you touch the Save button.

• Keypads that allow negative numbers have positive and negative number (+/-) keys.

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Table 29. Settings Screen Items

Description Resolution Units

Chiller Settings

Active Chilled Water Setpoint ± XXX.X

F / °C Active Current Limit Setpoint XXX % %RLA Active Panel Base Load Cmd On/Auto Text Active Base Loading Setpoint XXX % Active Base Loading Command On/Auto Text Differential to Start XXX.X

F / °C Differential to Stop XXX.X

F / °C Setpoint Source (BAS/Ext/FP, Ext/ Front Panel, Front Panel),BAS/

Ext/FPText Evaporator Water Pump Off Delay XX Min Condenser Pump Prestart Time XX Min High Evap Water Temp Cutout XXX.X

F / °C Evaporator Leaving Water Temp Cut-

out

XX.X

F / °C

Low Refrigerant Temperature Cutout XX.X

F / °C Current Limit Softload Start Point XXX.X % Current Limit Control Softload Time XXXX Sec Capacity Control Softload Time XXXX Sec Local Atmospheric Pressure XXX.X psi/kPa Power Up Start Delay XXX Min

Feature Settings

External Chilled/Hot Water SetpointEnableEnable/Disable

Text

External Current Limit SetpointEnableEnable/Disable

Text

LCI-C Diagnostic EncodingEnable/ Disable

Text

Chilled Water Reset(Constant, Outdoor, Return, Disable), Disable

Text

Return Reset Ratio XXX % Return Start Reset XXX.X

F / °C Return Maximum Reset XXX.X

F / °C Outdoor Reset Ratio XXX % Outdoor Start Reset XXX.X

F / °C Outdoor Maximum Reset XXX.X

F / °C

Mode Overrides

Evap Water Pump (Auto, On), Auto Text Cond Water Pump (Auto, On), Auto Text

Display Reference

Date Format (“mmm dd, yyy”, “dd-mmm-yyyy”),

mmm dd, yyy

Text

Data Separator Text Time Format (12-hour, 24-hour), 12-

hour

Text

Unit System (SI, English) English Text Pressure Units (Absolute, Gauge),

Absolute

Text

Number Format Text

Display Settings

You can use the Tracer AdaptiView display to change the format of the information that appears on the display, and to clean the touch screen.

Viewing the Settings Screen

Touch the Settings button in the main menu area (Figure

43) to view the Settings screen. Display Settings iden-

tiﬁes a column of buttons located on the screen (see

Figure 57). The buttons are:

• Display Preferences

• Language

• Date and T ime

• Clean Display

Each button provide access to a screen that is related to the button name.

Viewing and Changing Display Preferences

On the Settings screen, touch Display Preferences to view a screen containing these buttons (see Figure 58):

• Date Format

• Date Separator

• Time Format

• Unit System

• Pressure Units

• Number Format

Figure 57. Display ReferenceScreen

Each of the buttons shows the name of a display preference and its format (current value). Touch any of these buttons to view a screen where you can change the format . The button representing the format currently used is shaded (see the “MMDDYYYY” button).

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Figure 58. Data Format Page

To change the format:

1. Touch the button that shows that format you prefer.

2. Touch Save to conﬁrm your selection and to return to the Display Preferences screen.

Date Format

Use the Date Format screen to choose from the following date formats:

• MMDDYYYY (default)

• YYYYMMDD

• DDMMYYYY

Date Separator

Use the Date Separator screen to choose from the following date formats:

• None

• Slash (default)

• Hyphen

Time Format

Use the Time Format screen to choose from the following time formats:

• 12 hour (default)

• 24 hour

Units System

Use the Display Units screen to choose from the following display units:

• SI

• Inch-Pounds (default)

Pressure Units

Use the Pressure Units screen to choose from the following pressure units:

• kPaA (default if “SI” is chosen for display units)

• kPaG

• PSIA (default if “Inch-Pound” is chosen for display

units)

• PSIG

Number Format

• 1000000.0

• 1000000,0

Figure 59. Language Page

The language that is currently in use on the display is expressed as the current value on the Language screen. The button that displays the current value is shaded (see the “English” buttonin Figure 59 as an example).

To change the language:

1. Touch the button that identiﬁes the language you prefer.

2. Touch Save to conﬁrm your selection and to return to the Settings screen.

Figure 60. Date and Time screen

The current date and time for the display is expressed as the current value. The current value appears below the center line on the screen.

Above the center line, the following date and time attributes appear:

• Month

• Day

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• Year

• Hour

• Minute

• AM/PM

To change the date or time:

1. Touch the square presenting the attribute you want to change. The square becomes highlighted.

2. Touch the up or down arrow key on the screen until the your desired selection appears. Repeat the process for any other attributes you want to change.

3. Touch Save to conﬁrm your selection and return to the Settings screen.

Cleaning the Display

On the Settings screen, touch Clean Display to disable the Tracer AdaptiView display screen for 15seconds so that you can clean the screen without it responding to touch. During this time, thescreen is black with a number in the center that counts down the seconds. After 15 seconds, theSettings screen re-appears.

Figure 61. Countdown screen

Security Settings

If security if enabled, the Tracer AdaptiView display requires that you log in with a four-digit security PIN to make settting changes that are protected by security. This feature prevents unauthorized personnel from doing so. There are two levels of security, each allowing speciﬁc changes to be made.

You can view all data without logging in. The log-in screen appears only when you try to change a setting that is protected by security, or when you touch the Log in button from the Settings screen.

Disabling/Enabling Security

The Tracer AdaptiView display gives you the ability to disable or enable the security feature that allows a user to log in and log out.

To disable security, you must be logged in:

1. From the Settings screen, touch the Security button. The Security screen appears (Figure 62).

Note: If you are logged out, the Log in screen appears.

2. Touch the Disable button. The button becomes shaded.

3. Touch Save. The Settings screen appears with only the Security button visible. The Log in/Logoutbutton is gone.

To enable security:

1. From the Settings screen, touch the Security button. The Security screen appears (Figure 62).

2. Touch the Enable button. The button becomes shaded.

3. Touch Save. The Settings screen appears with a Log out button, in addition to the Security button.

Figure 62. Security screen

Figure 63. Security screen

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Logging In

There are two levels of security:

• Security Level 1 allows users to change a limited group of secure settings. The default security PIN is

1111.

• Security Level 2 allows users to change all secure settings. The default security PIN is 7123.

A technician must use the Tracer TU service tool to deﬁne a different PIN, or to recall a PIN that has been forgotten. When deﬁning a PIN in Tracer TU, the technician enters a 4-digit PIN that corresponds with the desired level of security.

To log in:

1. Touch the Log in button. The Log in screen appears (Figure 63).

2. Use the keypad to enter your PIN.

• The PIN is a four-digit number, which was conﬁgured for your system with the Tracer TU service tool.

• As you enter the number, the PIN remains hidden by asterisks.

Note: If you enter an invalid PIN, an error message ap-

pears on the Log in screen.

3. Touch Save.

• If you viewed the Log in screen from touching Log in on the Settings screen, the Settings screen appears with a Log out button on it.

• If the Log in screen appeared when you tried to change a setting, you return to that setting screen.

Note: The PIN is valid until 30 minutes of inactivity

passes, or until you log out.

Figure 64. Log In Screen

Logging Out

To log out:

1. Touch the Log out button. A conﬁrmation screen appears (Figure 65).

2. Touch Yesto conﬁrm that you want to log out. The Settings screen appears with a Log in button on it.

Figure 65. Log out conrmation screen

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RTHD-SVX02H-EN 93

TracerTU

TracerTU (non-Trane personnel, contact your localTrane ofﬁce for software) adds a level of sophistication that improves service technician effectiveness and minimizes chiller downtime.TheTracer AdaptiView control’s operator interface is intended to serve only typical daily tasks. The portable PC-based service-tool software,Tracer TU, supports service and maintenance tasks. TracerTU serves as a common interface to allTrane® chillers,andwill customize itself basedonthe properties of the chiller with which it is communicating.Thus, the service technician learns only one service interface. The panel bus is easy to troubleshoot using LED sensor veriﬁcation. Only the defective device is replaced.Tracer TU can communicate with individual devices or groups of devices. All chiller status, machine conﬁguration settings, customizable limits, and up to 100 active or historic diagnostics are displayed through the service-tool software interface. LEDs and their respectiveTracerTU indicators visually conﬁrm the availability of each connected sensor, relay, and actuator. TracerTU is designed to run on a customer’s laptop,

connected to theTracer AdaptiView control panel with a USB cable.Your laptop must meet the following hardware and software requirements:

• 1 GB RAM (minimum)

• 1024 x 768 screen resolution

• CD-ROM drive

• Ethernet 10/100 LAN card

• An available USB 2.0 port

• Microsoft® Windows® XP Professional operation sys-

tem with Service Pack 3 (SP3) or Windows 7 Enterprise or Professional operating system (32-bit or 64bit4.0 or later.

Note: TracerTU is designed and validated for this mini-

mum laptop conﬁguration.Any variation from this conﬁguration may have different results. Therefore, support forTracerTU is limited to only those laptops with the conﬁguration previously speciﬁed.

Figure 66.

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94 RTHD-SVX02H-EN

Unit Start-up

Power Up

The Power up chart shows the respective TD7 screens during a power up of the main processor. This process takes from 30 to 50 seconds depending on the number of installed Options. On all power ups, the software mod-

el will always transition through the ‘Stopped’ Software state independent of the last mode. If the last mode before power down was ‘Auto’, the transition from ‘Stopped’ to ‘Starting’ occurs, but it is not apparent to the user.

Figure 67. Sequence of operation: power up diagram

Figure 68. TD-7 screen displays

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Power Up to Starting

The Power up to starting diagram shows the timing from a power up event to energizing the compressor. The shortest allowable time would be under the following conditions:

1. No motor restart inhibit

2. Evaporator and Condenser Water ﬂowing

3. Power up Start Delay setpoint set to 0 minutes

4. Adjustable Stop to Start Timer set to 5 seconds

5. Need to cool

The above conditions would allow for a minimum power up to starting compressor time of 95 seconds.

Figure 69. Power Up to Starting

RTHD Sequence of Operation Power Up To Starting Compressor

Stopped to Starting

The stopped to starting diagram shows the timing from a stopped mode to energizing the compressor. The shortest allowable time would be under the following conditions:

1. No motor restart inhibit

2. Evaporator and Condenser Water ﬂowing

3. Power up Start Delay Timer has expired

4. Adjustable Stop to Start Timer has expired

5. Need to cool

The above conditions would allow the compressor to start in 60 seconds

Figure 70. Stopped to Starting

RTHD Sequence of Operation Stopped to Starting

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Limit Conditions

UC800 will automatically limit certain operating parameters during startup and run modes to maintain optimum chiller performance and prevent nuisance diagnostic trips. These limit conditions are noted in Table 30.

Table 30. Limit Conditions

Running Limited

The chiller, circuit, and compressor are currently running, but the operation of the chiller/compressor is being actively limited by the controls. Further information is provided by the sub-mode.

Condenser Pressure Limit

The circuit is experiencing condenser pressures at or near the condenser limit setting. The compressor will be unloaded to prevent exceeding the limits.

Low Evaporator Refrigerant Temperature Inhibit

The circuit is experiencing saturated evaporator temperatures at or near the Low Refrigerant Temperature Cutout setting. The compressors will be unloaded to prevent tripping.

Capacity Limited by Low Liquid Level

The circuit is experiencing low refrigerant liquid levels and the EXV is at or near full open. The compressor will be unloaded to prevent tripping.

Current Limit The compressor is running and its capacity is

being limited by high currents. The current limit setting is 100% RLA (to avoid overcurrent trips).

Phase Unbalance Limit

The compressor is running and its capacity is being limited by excessive phase current unbalance.

Seasonal Unit Start-Up Procedure

1. Close all valves and re-install the drain plugs in the evaporator and condenser heads.

2. Service the auxiliary equipment according to the start-up/maintenance instructions provided by the respective equipment manufacturers.

3. Vent and ﬁll the cooling tower, if used, as well as the condenser and piping. At this point, all air must be removed from the system (including each pass). Close the vents in the evaporator chilled water circuits.

4. Open all the valves in the evaporator chilled water circuits.

5. If the evaporator was previously drained, vent and ﬁll the evaporator and chilled water circuit. When all air is removed from the system (including each pass), install the vent plugs in the evaporator water boxes.

DCAUTION

Equipment Damage!

Ensure that the oil sump heaters have been operating for a minimum of 24 hours before starting. Failure to do so may result in equipment damage.

6. Check the adjustment and operation of each safety and operating control.

7. Close all disconnect switches.

8. Refer to the sequence for daily unit startup for the remainder of the seasonal startup.

9. For the heat recovery unit, if chiller can’t start up by low system differential pressure at low condenser inlet water temperature. you cna increase the parameter in TU: Unit start time (max to 60 seconds).

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Series R Start-up Test Log

Job Name Job Location

Model # Serial # start date:

Sales Order # ship date: Job elevation (ft. above sea level)

STARTER DATA: START-UP ONLY

Manufacturer Chiller appearance at arrival:

Type: Compressor shipping bolts removed? Y N

Vendor ID #/Model #: Oil separator shipping bolts removed? Y N

Volts Amps Hz Machine Gauge Pressure: psig/ kPag

COMPRESSOR DATA:

Machine UC800 Pressure: psig/ kPag

Model #: Complete if pressure test is required

Serial #: Vacuum after leak test= mm

NAMEPLATE DATA:

Standing vacuum test = mm rise in hrs

RLA KW Volts

UNIT CHARGES

50 60 Hz Unit refrigerant charge: lbs/ Kg

DESIGN DATA: Unit Oil Charge: gal/ L

RLA KW Volts

CURRENT TRANSFORMER SUMMARY OF UNIT OPTIONS INSTALLED

Part Number (“X” code and 2-digit extension) Y N Tracer Communications Interface

Primary CT’s Y N Options Module

X - Y N Outdoor Air Sensor

X - Y N Ice Making Control

X - Y N Other

DESIGN CONDITIONS

Evap Desig GPM L/S PSID kPad Ent. Water F/C Leaving Water F/C

Evap Actual GPM L/S PSID kPad Ent. Water F/C Leaving Water F/C

Cond Design GPM L/S PSID kPad Ent. Water F/C Leaving Water F/C

Cond Actual GPM L/S PSID kPad Ent. Water F/C Leaving Water F/C

Owner Witness Signature:

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Installation Checklist for Model RTHD Series R

To: Trane Service Company

S.O. No.: Serial No:

Job/Project Name:

RECEIVING

Verify that the unit nameplate data corresponds to the ordering information.

Inspect the unit for shipping damage and any shortages of materials. Report any damage or shortage to the carrier.

UNIT LOCATION AND MOUNTING

Inspect the location desired for installation and verify adequate service access clearances.

Provide drainage for evaporator and condenser water.

Remove and discard all shipping materials (cartons, etc.)

Install optional spring or neoprene isolators, if required. Refer to IOM for details.

Level unit and secure it to the mounting surface.

UNIT PIPING

Caution:

If using an acidic commercial flushing solution, construct a temporary bypass around the unit to prevent damage to the internal components of the condenser and evaporator. To avoid possible equipment damage, do not use untreated or improperly treated system water.

Flush all unit water piping before making ﬁnal connections to unit.

Connect water piping to the evaporator and condenser.

Install pressure gauges and shutoff valves on the water inlet and outlet to the evap. and cond.

Install water strainers in the entering chilled water and condenser water lines.

Install balancing valves (discretionary) and ﬂow switches in the leaving chilled and condenser water lines.

Install drains with shutoff valves or drain plugs on the evaporator and condenser.

Vent the chilled water and condenser water systems at the high points of the system piping.

Pipe relief valves outdoors in accordance to ASHRAE 15, the IOM and local code.

ELECTRICAL WIRING

WARNING:

To prevent injury or death, disconnect electrical power source before completing wiring connections on the

unit.

Check for tight connections for the unit power supply wiring with the fused disconnect Unit-mounted circuit breaker (or unit-mounted disconnect) in the power section of the control panel.

Check for tight 115 volt control wiring connections to the chilled water pump and condenser water pump

Check Interlock Wiring, including chilled water pump control, chilled water flow interlock, condenser water pump, condenser water ﬂow interlock, external auto stop. For further details refer to the IOM or the unit wiring.

Caution:

Information on Interconnecting Wiring: Chilled Water Pump Interlock and External Auto/Stop must be adhered to or equipment damage may occur.

If remote Alarm contacts, Limit Warning Contact, Outdoor Air Temperature Sensor, Emergency Stop, Head Relief Request Contact, Ice Making, External Chilled Water Setpoint, External Current Limit Setpoint, Percent Condenser Pressure output are used refer to the IOM and the unit wiring for further details.

Control power wiring isolated in control panel/starter panel enclosure.

Is chilled water pump control by UCP2, CH530, UC800 or Others (circle one)

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Installation Checklist for Model RTHD Series R

PRE-START CHECK-OUT

Inspect all other wiring connection. Connections should be clean and tight.

Energize crankcase heaters. Heaters need to be energized 24 hours before start-up.

Conﬁrm that all service and isolation valves are open. Refer to RTHD-SVX02A-EN for RTHD units, RTHC-SB-1B for RTHC units and RTHB-IOM-1 for the RTHB units.

Remove the four (3 on B Frame Compressors) compressor shipping stops (snubbers) from under the compressor. (RTHD and RTHC only)

Remove shipping bolts from under the two oil separators (RTHD and RTHC only)

Conﬁrm phase-sequencing “A-B-C”. Refer to the IOM for further details.

Check all water temperature sensors for proper installation and use of heat transfer paste.

Fill the chilled water circuit. Type of glycol ___________________ Percent of glycol _______________ byweight

Caution:

To prevent equipment damage, do not use untreated or improperly treated water in the system.

Fill the condensing water circuit.

Close the fused disconnect switch to supply power to the chilled water pump and condenser water pump starter.

Start the water pumps. With water pumps running, inspect all piping connections for leakage. Make any necessary repairs.

With water pumps running, adjust water ﬂows and check water pressure drops through the evaporator and condenser.

Adjust the ﬂow switches for proper operation.

Return pumps to the automatic mode.

Disable machine start circuit until start-up mechanic arrives (use either the external stop or emergency stop circuit)

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Unit Shutdown

Normal Shutdown to Stopped

The Normal Shutdown diagram shows the Transition from Running through a Normal (friendly) Shutdown. The Dashed lines on the top attempt to show the ﬁnal mode if you enter the stop via various inputs.

Figure 71. Normal Shutdown

Seasonal Unit Shutdown

1. Perform the normal unit stop sequence using the <Stop> key.

Note: Do not open the starter disconnect switch. This

must remain closed to provide control power from the control power transformer to the oil sump heater.

2. Verify that the chilled water and condenser water pumps are cycled off. If desired, open the disconnect switches to the pumps.

3. Drain the condenser piping and cooling tower, if desired.

4. Remove the drain and vent plugs from the condenser headers to drain the condenser.

5. Verify that the Crank Case heater is working.

6. Once the unit is secured, perform the maintenance identiﬁed in the following sections.

Trane RTHD series Installation, Operation And Maintanance

Specifications and Main Features

Frequently Asked Questions

User Manual