Trane Optimus RTHD Installation, Operation And Maintenance Manual
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Trane Optimus RTHD Installation, Operation And Maintenance Manual

Water-cooled chillers
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Installation, Operation, and Maintenance
Optimus™ Water-Cooled Chillers
Model RTHD
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.
April 2022
SAFETY WARNING
RTHD-SVX01K-EN

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  • Page 1 Installation, Operation, and Maintenance Optimus™ Water-Cooled Chillers Model RTHD SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
  • Page 2 Practices requirements for arc flash protection, PRIOR to servicing the unit. NEVER PERFORM ANY Trane believes that responsible refrigerant practices are SWITCHING, DISCONNECTING, OR VOLTAGE important to the environment, our customers, and the air conditioning industry. All technicians who handle TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH CLOTHING.
  • Page 3 This document and the information in it are the property of Refrigerant under High Pressure! Trane, and may not be used or reproduced in whole or in Failure to follow instructions below could result in an part without written permission. Trane reserves the right...

  • Page 4: Table Of Contents

    Table of Contents Model Number Module Connections for ......6 Interconnecting Wiring ....44 Unit Nameplate .
  • Page 5 Table of Contents Inhibit ......63 Immediate Shutdown to Stopped or Run Inhibit ......64 Momentary Power Loss .

  • Page 6: Model Number

    Model Number Nameplates of the equipment. Shown in the following table is a sample of typical unit model number and the coding system for each. The Optimus™ unit nameplates are applied to the exterior of the Control Panel. A compressor nameplate is located Each position, or group of positions, in the model number on the compressor.

  • Page 7: Model Number Descriptions

    Model Number Descriptions Unit Model Number Digits 1,2,3,4 – Chiller Model Digits 14,15 – Evaporator Digit 24 – Condenser Water Passes RTHD= Water-Cooled Optimus™ Chiller B1 = B1 Evaporator B2 = B2 Evaporator 2 Pass Digit 5 – Manufacturing C1 = C1 Evaporator Location Digit 25 –...

  • Page 8: Compressor Model Number

    Model Number Descriptions Digit 37 – Flow Switch Digit 45 – Under/Over Voltage Digits 54 – Refrigerant Monitor Protection Input No Flow Switch Evaporator (NEMA 1) None None Evaporator and Condenser With Under/Over Voltage 100 ppm / 4-20 mA (NEMA 1) Protection 1000 ppm / 4-20 mA Evaporator (NEMA 4)

  • Page 9: General Information

    General Information Unit Description The RTHD units are single compressor, helical-rotary type, Figure 2 through Figure 4 show typical Optimus™ units water-cooled liquid chillers designed for installation and their components. Water inlet and outlet openings are indoors. Each unit is a completely assembled, hermetic covered before shipment.
  • Page 10 General Information Figure 4. Component location — Optimus (back view) Compressor Oil Separators Oil Filter (Cold) Hot Oil Filter is hidden from view. Discharge Line Unit Nameplate Relief Valves (On side of starter/control panel) EXVs Evaporator Water Inlet Condenser Service Valves Oil Sump (With Refrigerant Isolation (The oil distribution system is located between...
  • Page 11 General Information Table 1. General data Unit Configuration Description Units B1B1B1 B1C1D1 B2B2B2 B2C2D2 C1D5E4 C1D6E5 C1E1F1 C2D3E3 GENERAL Refrigerant Type R-134a or R-513A Refrigerant Charge Oil Type OIL48 Wye-delta starter with R-134a Oil Charge Oil Type OIL315 Wye-delta starter R513A(b) Charge(c) Oil Type...
  • Page 12 (c) If oil cooler is installed (model number digit 30 = C), add 0.3 gal (1L) to oil charge value given for B compressor family units. Add 1.0 gal (4L) for all other units. (d) See unit submittal or Trane Select Assist (TSA) report for design/selected minimum flows. Table 2.
  • Page 13 (c) If oil cooler is installed (model number digit 30 = C), add 0.3 gal (1L) to oil charge value given for B compressor family units. Add 1.0 gal (4L) for all other units. (d) See unit submittal or Trane Select Assist (TSA) report for design/selected minimum flows. Table 3.
  • Page 14 (c) If oil cooler is installed (model number digit 30 = C), add 0.3 gal (1L) to oil charge value given for B compressor family units. Add 1.0 gal (4L) for all other units. (d) See unit submittal or Trane Select Assist (TSA) report for design/selected minimum flows. RTHD-SVX01K-EN...

  • Page 15: Pre-Installation

    “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.

  • Page 16: Installation Requirements

    (b) Start-up must be performed by Trane or an agent of Trane specifically authorized to perform start-up and warranty of Trane products. Contractor shall provide Trane (or an agent of Trane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to the scheduled start-up.

  • Page 17: Dimensions And Weights

    Dimensions and Weights Unit Dimensions See unit submittals for specific unit dimensions and water connection locations. Unit Weights Table 5. Weights — standard units (wye-delta starter) Shipping Weight Operating Weight Unit Configuration B1B1B1 9,292 4,215 9,867 4,476 B1C1D1 9,837 4,462 10,554 4,787 B2B2B2...
  • Page 18 Dimensions and Weights Table 6. Weights — units with AFD option Shipping Weight Operating Weight AFD D1H Frame AFD D2H Frame AFD D1H Frame AFD D2H Frame Unit Configuration B1B1B1 9526 4321 9664 4384 10101 4582 10239 4645 B1C1D1 10071 4568 10209 4631...

  • Page 19: Service Clearances

    Required vertical clearance above unit is 36” (914 mm). • If the room configuration requires a variance to the There should be no piping or conduit located over the clearance dimensions, contact your Trane sales office compressor motor. representative. •...

  • Page 20: Installation Mechanical

    Optimus™ Water-Cooled Chillers, for place, the unit must be level within 1/2" (12.7 mm) across instructions, including weights and rigging the length and width of the unit. The Trane Company is not instruction for components. responsible for equipment problems resulting from an improperly designed or constructed foundation.
  • Page 21 Installation Mechanical WARNING Heavy Objects! Failure to follow instructions below could result in unit dropping which could result in death or serious injury, and equipment or property-only damage. Ensure that all the lifting equipment used is properly rated for the weight of the unit being lifted. Each of the cables (chains or slings), hooks, and shackles used to lift the unit must be capable of supporting the entire weight of the unit.

  • Page 22: Lifting Procedure

    Installation Mechanical Lifting Procedure Figure 7. Rigging configuration Anti-rolling Cable Eyelet or M16 Anti-rolling Internal Thread Cable F (min) Lifting Starter Controls Holes 44.5mm dia typ Condenser Evaporator Unit Model Number Location (a) Optional AFD is not shown. See Figure 3, p. 9 for location of optional AFD.
  • Page 23 Installation Mechanical Table 7. Rigging dimensions (continued) Dimension - in (mm) Unit Configuration Units 3658 3353 1612 D1G2G2 63.54 3.82 26.02 3658 3353 1614 D2D2E2 59.96 24.17 3048 2743 1523 D2F2F3 63.39 3.98 24.29 3658 3353 1610 D2G2G1 63.46 25.75 3658 3353 1612...
  • Page 24 Installation Mechanical 2. When unit is at its final location, remove shipping bolts Figure 9. Compressor shipping spacers that secure unit to wood base mounts. B family (suction side) 3. Install clevis connectors in lifting holes provided on the unit. Attach lifting chains or cables to clevis connectors Compressor Housing as shown in Figure 7, p.

  • Page 25: Unit Leveling

    Notes: • The elastomeric pads shipped (as standard) are adequate for most installations. For additional details on isolation practices, see Trane Engineering Bulletin Sound Ratings and Installation Guide Optimus™ Shipping Bracket Water-Cooled Chillers RLC-PRB015*-EN, or consult an acoustical engineer for sound-sensitive installations.
  • Page 26 Installation Mechanical Figure 12. Isolator pad placement Durometer: 50 ± 5 Durometer: 40 ± 5 0.31 0.31 Durometer: 55± 5 Typical Elastomeric Isolation Pad 0.31 (hidden leg) NOTE: Level unit to 1/4” (6.25mm) across length and width. Pads extend the full width of the legs Water Pressure Drop Data RTHD-SVX01K-EN...
  • Page 27 Installation Mechanical RTHD-SVX01K-EN...
  • Page 28 Installation Mechanical RTHD-SVX01K-EN...
  • Page 29 Installation Mechanical RTHD-SVX01K-EN...

  • Page 30: Water Piping

    Installation Mechanical Water Piping Figure 13. Typical water piping setup Cond Water Ref Valve (Opt) Shutoff Shutoff Relief Relief Valves Valves Isolation Valve Valve Valves Isolation Manifold Manifold Valves Cond Water Flow Evap Water Flow Flow Pressure Switch Differential Flow Gauge Switch Pressure...
  • Page 31 All water boxes may be reversed end-for-end. See prevent damage to internal components of the “Maintenance Procedures,” p. 69 for detailed waterbox evaporator/condenser. Trane assumes no responsibility removal instructions. for equipment damage caused by flushing/cleaning solutions or water-born debris. Remove sensors from wells before removing waterbox.
  • Page 32 Installation Mechanical Figure 16. Condenser and evaporator waterboxes — DGG/EGG 3 Pass Evap Connection Configuration EVAP COND (left or right hand) Depending on Water Inlet Making Grooved Pipe Connections • Shutoff (isolation) valves • Thermometers NOTICE • Cleanout tees Heat Exchanger Damage! •...
  • Page 33 Trane assumes no responsibility for equipment failures • The chiller must maintain a 23 psid system pressure which result from untreated or improperly treated differential at all load conditions in order to ensure water, or saline or brackish water.
  • Page 34 Installation Mechanical Water Pressure Gauges and Thermometers qualified service organization if nuisance machine shutdowns persist. Install field-supplied thermometers and pressure gauges • Adjust the switch to open when water flow falls below (with manifolds, whenever practical) as shown in nominal. See “General Information,”...
  • Page 35 Installation Mechanical Figure 17. Relief valve location Table 8. Pressure relief valve data Rated Relief Capacity Field Valves Discharge per Relief Conn Setpoint Number Valve Pipe Factory Valve (psi) (lba/ Size Shell Side Location Valves min.) (NPT) Conn (in) Evap - B1 48.0 1-5/16 -12 Evap - B2...
  • Page 36 Installation Mechanical Thermal Insulation All Optimus™ units are available with optional factory installed thermal insulation. If the unit is not factory insulated, install insulation over the areas shaded in Figure 18, p. 36. See Table 9 for types and quantities of insulation required.

  • Page 37: Freeze Protection

    Installation Mechanical Freeze Protection For unit operation in a low temperature environment, glycol solution strengths are contained in below table as adequate protection measures must be taken against follows: freezing. Adjusted settings and recommended ethylene Table 10. Freeze protection settings Ethylene Glycol Propylene Glycol Minimum...
  • Page 38 Installation Mechanical Example For Ice Building: Chilled Water Setpoint (std. comfort cooling) = 45°F Full Load Delta T (across evaporator)= 6°F Ice Termination Setpoint (entering water temp.) = 26°F Actual Leaving Solution Temperature = 26 - 6 = 20°F RTHD-SVX01K-EN...

  • Page 39: Installation Electrical

    Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.

  • Page 40: Units With Afd Option

    Installation Electrical Units with AFD Option Table 12. Compressor motor electrical data (50 Hz) — standard units (wye-delta starter) Table 13. Electrical data — units with AFD RLA @ Applied Range Compressor Voltage (Model Number Estimated Power Code Max kW (Wye) (Delta) Voltage...
  • Page 41 Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.
  • Page 42 For variable frequency drives AFD must be set with phase rotation clockwise (default or other energy storing components provided by Trane from factory), and phase reversal protection DISABLED. or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of All Units.
  • Page 43 For variable frequency drives inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s or others, refer to the appropriate manufacturer’s...

  • Page 44: Module Connections For Interconnecting Wiring

    Installation Electrical Module Connections for Chilled Water Flow Interlock Symbio™ 800 has an input that will accept a contact Interconnecting Wiring closure from a proof-of-flow device such as a flow switch. The flow switch is to be wired in series with the chilled All connectors can be unplugged or the wires can be water pump starter's auxiliary contacts.
  • Page 45 Installation Electrical prestart mode and de-energizes the condenser water pump relay. This diagnostic is automatically reset if flow is Reset Ratio calculation: established at any later time. The Reset Ratio on the User Interface is displayed as a Note: This diagnostic would never automatically reset if percentage.
  • Page 46 Installation Electrical External Auto/Stop Table 14. Chiller events/status descriptions (continued) Event/State Description If the unit requires the external Auto/Stop function, the installer must provide leads from the remote contacts to This output is true whenever the chiller has been the proper terminals of the LLID on the control panel. running in one of the Unloading types of limit modes (Condenser, Evaporator, Current Limit or The chiller will run normally when the contacts are closed.

  • Page 47: Afd Drive (Optional)

    AFD Drive (Optional) • External Base Loading Setpoint Trane TR200 drive is an electronic motor controller that This is an Analog Input that sets the base loading setpoint. converts AC mains input into a variable AC waveform This signal can be controlled by either a 2-10Vdc or 4-20ma output.

  • Page 48: Afd Drive Programming

    Installation Electrical Figure 21. AFD jumper Table 16. Non-compressor specific parameter settings Description Setting 0-03 Region Settings North American 0-20 Display Line 1.1 Small DC Link Voltage 0-22 Display Line 1.3 Heatsink Temp. 0-24 Display Line 3 Large Analog Input 53 0-40 [Hand on] Key on LCP Disabled...
  • Page 49 Installation Electrical Table 17. Compressor-specific parameter settings Motor Parameters B1/B2 Motor Frame C1/C2 Motor Frame D1/D2/D3/E3 Motor Frame Frame 460/ 400/ 380/ 575/ 460/ 400/ 380/ 575/ 460/ 400/ 380/ 575/ 400/ Description Motor Power 1-21 (hp) Motor Voltage 1-22 Motor 1-23 Frequency...

  • Page 50: Communications Interface

    Installation Electrical Communications Interface BACnet® Building Automation Control Network The BACnet® control network for Symbio™ 800 expands communications from the unit UCM network to the Tracer® Ensemble™ or Tracer SC+ building automation system or third party building automation system. Utilizing BACnet, the BAS allows external setpoint and configuration adjustment and monitoring of status and diagnostics.

  • Page 51: Operating Principles

    Operating Principles This section describes the overall operating principles of the compressor to discharge pressure conditions. the Optimus™ water chiller. Simultaneously, lubricant is injected into the compressor. An oil management system provides an almost oil-free General refrigerant to the shells to maximize heat transfer performance, while providing lubrication and rotor Optimus™...

  • Page 52: Oil Management

    Operating Principles copper with lands at all tube sheets. All tube sheets are made of carbon steel. Tubes are mechanically expanded into tube sheets and mechanically fastened to tube supports. Evaporator tubes are 1.0- inch (25.4 mm) diameter and condenser tubes are 0.75-inch (19.05 mm) diameter.

  • Page 53: Controls

    TU, supports service and maintenance tasks. ® Tracer TU serves as a common interface to all Trane® chillers, and will customize itself based on the properties of the chiller with which it is communicating.Thus, the service technician learns only one service interface.
  • Page 54 Controls ® Figure 23. Tracer RTHD-SVX01K-EN...

  • Page 55: Pre-Start

    Trane Service checklist in chapter “Log and Check Sheets,” p. Important: Start-up must be performed by Trane or an agent of Trane specifically authorized to perform start-up and warranty of Trane products. Contractor shall provide Trane (or an agent of Trane specifically authorized to...

  • Page 56: Start-Up And Shutdown

    Important: Initial unit commissioning start-up must be pressed and automatically restart the pump when the performed by Trane or an agent of Trane unit starts normally. specifically authorized to perform start-up 3. The unit will start normally, provided the following and warranty of Trane products.

  • Page 57: Sequence Of Operation

    Start-Up and Shutdown 6. Check the adjustment and operation of each safety and 8. Refer to the sequence for daily unit startup for the operating control. remainder of the seasonal startup 7. Close all disconnect switches. Sequence of Operation This section will provide basic information on chiller •...

  • Page 58: Power Up

    Symbio 800, and 105 seconds for the display. On all power apparent to the user. ups, the software model always will transition through the Figure 25. Sequence of events: power up diagram Second Trane Logo - Loading User InterfaceTemplate... Display Ready Black Screen Grey Screen Loading Data….

  • Page 59: Power Up To Starting

    Start-Up and Shutdown Power Up to Starting The Power up to starting diagram shows the timing from • Power up Start Delay setpoint set to 0 minutes a power up event to energizing the compressor. The • Adjustable Stop to Start Timer set to 5 seconds shortest allowable time would be under the following •...

  • Page 60: Stopped To Starting

    Start-Up and Shutdown Stopped to Starting The stopped to starting diagram shows the timing from a • Power up Start Delay Timer has expired stopped mode to energizing the compressor. The shortest • Adjustable Stop to Start Timer has expired allowable time would be under the following conditions: •...

  • Page 61: Starting Afd

    Start-Up and Shutdown Starting AFD The Starting AFD shows the order of operation for this type of starter. Figure 30. Sequence of events: starting AFD Confirm At Speed Input within Check for At Speed Input Opened Maximum Acceleration Timer (Default 7 seconds) Energize Stop and Start Relays Confirm Individual Phase...

  • Page 62: Satisfied Setpoint

    Start-Up and Shutdown Satisfied Setpoint The Satisfied Setpoint diagram shows the normal transition from Running to shutting down due to the Evap Leaving water temp falling below the differential to stop setpoint. Figure 32. Sequence of events: satisfied setpoint Satisfied Setpoint Running Preparing to Shutdown Shutting Down...

  • Page 63: Normal Shutdown To Stopped Or Run

    Start-Up and Shutdown Normal Shutdown to Stopped or Run Inhibit 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 33.

  • Page 64: Immediate Shutdown To Stopped Or Run Inhibit

    Start-Up and Shutdown Immediate Shutdown to Stopped or Run Inhibit The Immediate Shutdown diagram shows the Transition from Running through an Immediate Shutdown. The Dashed lines on the top attempt to show the final mode if you enter the stop via various inputs. Figure 34.

  • Page 65: Momentary Power Loss

    Start-Up and Shutdown Momentary Power Loss The Momentary Power Loss diagram shows how the controls act in a power interruption event that the controls diagnose as a MPL diagnostic. Figure 35. Sequence of events: momentary power loss MPL Cleared and Need to Cool Momentary Power Loss Detected Starting Waiting to Start...

  • Page 66: Complete)

    Start-Up and Shutdown Ice Building (Auto to Ice Building to Ice Building Complete) This diagram shows the transition from auto to ice building, to ice building complete Figure 37. Sequence of events: ice building (auto to ice building to ice building complete) Ice Building Command Evap Entering Water 1.

  • Page 67: Limit Conditions

    Start-Up and Shutdown Limit Conditions Symbio™ 800 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 18. Table 18. Limit conditions Condition Description The chiller, circuit, and compressor are currently running, but the operation of the chiller/compressor is being actively...

  • Page 68: Maintenance

    Stealth™ • Contact Trane service to leak check the chiller, inspect chiller. safety controls, and inspect electrical components for deficiencies.

  • Page 69: Maintenance Procedures Cleaning The Condenser

    (chains or slings) must be rated for overhead (a) All conditions stated above are based on the unit running fully loaded at AHRI conditions. If full load conditions cannot be met, contact Trane lifting applications with an acceptable working load service.

  • Page 70: Cleaning The Evaporator

    M12x1.75 serious injuries. Never stand below or in close proximity to heavy Obtain the required parts from your local Trane Parts objects while they are suspended from, or being lifted Center. by, a lifting device in case the object drops.

  • Page 71: Oil Sump Level Check

    4. After the unit is off line for 30 minutes, move the sightglass along the side of the oil sump. 5. The level should be between 2” and 5” from the bottom of the oil sump. Note: If oil levels are not between 2” and 5”, contact Trane service. RTHD-SVX01K-EN...

  • Page 72: Optional Afd

    Note: The power module fan comes on with power. inadvertently energized. For variable frequency drives or other energy storing components provided by Trane Other fans cycle with drive operation. or others, refer to the appropriate manufacturer’s 2.

  • Page 73: Diagnostics

    Diagnostics Diagnostic Name and Source: Name of Diagnostic and its source. Note that this is the exact text used in the User Interface and/or Service Tool displays. Affects Target: Defines the “target” or what is affected by the diagnostic. Usually either the entire Chiller, or a particular Circuit or Compressor is affected by the diagnostic (the same one as the source), but in special cases functions are modified or disabled by the diagnostic.

  • Page 74: Starter Diagnostics

    Diagnostics Starter Diagnostics Table 24. Starter diagnostics Diagnostic Active Modes Name and Affects [Inactive Reset Source Target Severity Persistence Modes] Criteria Level AFD Drive Fault Chiller Immediate NonLatch The AFD Drive Fault Relay is open Local The “At Speed” input was found to be opened with the All Running Modes At Speed Input compressor motor running after successfully obtaining...

  • Page 75: Local Communication Drive Diagnostics

    Diagnostics Table 24. Starter diagnostics (continued) Diagnostic Active Modes Name and Affects [Inactive Reset Source Target Severity Persistence Modes] Criteria Level "a) No current was sensed on one or two of the current transformer inputs while running or starting (See Nonlatching Power Loss Diagnostic for all three phases lost while running).

  • Page 76: Main Processor Diagnostics

    Diagnostics Table 25. Local communication drive diagnostics (continued) Diagnostic Active Modes Name and Affects [Inactive Reset Source Target Severity Persistence Modes] Criteria Level Drive sensed an output phase is missing. Output phase AFD Output Compressor Chiller Immediate Latching loss is defined as greater than 15% output current Local Phase Loss Running...
  • Page 77 Diagnostics Table 26. Main processor diagnostics (continued) Diagnostic Active Modes Name and Affects [Inactive Reset Source Target Severity Persistence Modes] Criteria Level The entering evaporator water temp fell below the leaving evaporator water temp. by more than 2°F for 100 °F-sec. Evap Water Flow Any Ckt(s) For falling film evaporators this diagnostic cannot reliably...
  • Page 78 Diagnostics Table 26. Main processor diagnostics (continued) Diagnostic Active Modes Name and Affects [Inactive Reset Source Target Severity Persistence Modes] Criteria Level Heat Recovery Bad Sensor or LLID. If heat recovery is install and it’s type Entering Water Heat Warning Latch is auto –...
  • Page 79 Diagnostics Table 26. Main processor diagnostics (continued) Diagnostic Active Modes Name and Affects [Inactive Reset Source Target Severity Persistence Modes] Criteria Level Any of the compressor’s motor winding temperature High Motor Chiller Immediate Latch sensors is seen to be beyond the windings rated Local Winding Temp temperature of 260°F (126.7°C)
  • Page 80 Service The events that led up to this failure, if known, should be recorded and transmitted to Trane Controls Engineering – (SW rev 6 and higher) Starter Failed to Starter failed to arm or start within the allotted time (2...
  • Page 81 Diagnostics Table 26. Main processor diagnostics (continued) Diagnostic Active Modes Name and Affects [Inactive Reset Source Target Severity Persistence Modes] Criteria Level Starter Module Checksum on EEPROM copy of the Starter LLID Memory Error Chiller Immediate Latch Local configuration failed. Factor default values used. Type 2 The main condenser water pump output was de-energize Unexpected...

  • Page 82: Communication Diagnostics

    Diagnostics Communication Diagnostics Notes: • The following communication loss diagnostics will not LLIDs, such as the Quad Relay LLID, have more than occur unless that input or output is required to be one functional output associated with it. A comm loss present by the particular configuration and installed with such a multiple function board, will generate options for the chiller.
  • Page 83 Diagnostics Table 27. Communication diagnostics (continued) Active Modes [Inactive Reset Diagnostic Name Affects Severity Persistence Modes] Criteria Level Continual loss of communication between the MP and Comm Loss: Economizer Chiller Normal Latch the Functional ID has occurred for a 30 second Remote Temperature period.
  • Page 84 Diagnostics Table 27. Communication diagnostics (continued) Active Modes [Inactive Reset Diagnostic Name Affects Severity Persistence Modes] Criteria Level Continual loss of communication between the MP and Comm Loss: External Heat Heat Warning Latch the Functional ID has occurred for a 30 second Remote Recovery Enable Recovery...
  • Page 85 Diagnostics Table 27. Communication diagnostics (continued) Active Modes [Inactive Reset Diagnostic Name Affects Severity Persistence Modes] Criteria Level "Continual loss of communication between the MP and the Functional ID has occurred for a 30 second Warning Comm Loss: Outdoor Air period.

  • Page 86: Wiring

    Wiring Table 28 Table 29 provide lists of field wiring diagrams, electrical schematics and connection diagrams for the Optimus™ units. Wiring diagrams can be accessed via e-Library. A laminated wiring diagram kit is also shipped with each RTHD unit. To determine the specific electrical characteristics of a particular chiller, see the nameplates mounted on the units.

  • Page 87: Log And Check Sheets

    Log and Check Sheets The operator log and check sheet are included for use as appropriate, for installation completion verification before Trane start-up is scheduled, and for reference during the Trane start-up. Where the log or check sheet also exists outside of this publication as standalone literature, the literature order number is also listed.
  • Page 88 Log and Check Sheets Page Left Intentionally Blank RTHD-SVX01K-EN...
  • Page 89 Important: A copy of this completed form must be submitted to the Trane service agency that will be responsible for the start- up of the chiller. Start-up will NOT proceed unless applicable items listed in this form have been satisfactorily completed.
  • Page 90 Therefore, chiller should have power for this amount of time before Trane Service arrives to do start-up.  If unit has nitrogen charge (model number digit 45 = 1), contact Trane Service for unit charging prior to start-up. 10.Equipment room ...
  • Page 91 Additional comments/instructions: ____________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________ A copy of this completed from must be submitted to the Trane Service Office that will be responsible for start-up of chiller. RLC-ADF005D-EN...
  • Page 92 For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.
  • Page 93 Chiller Settings Settin gs Se ttings Tab U nit Front Panel C hilled W ater Setpoint (F) Front Panel D emand Limit Setpoint (R LA) D ifferential to Start (F) D ifferential to Stop (F) Setpoint Source Fe ature Se ttings C hilled W ater R eset R eturn R eset R atio Return Start Reset...
  • Page 94 Operator Log C h iller Log Run Tim e M ain Tab 15 m in 30 m in 1 hr Chiller Mode Evap Ent/Lvg W ater Temp Cond Ent/Lvg W ater Temp Active Chilled W ater Setpoint (F) Average Line Current (% RLA) Active Demand Limit Setpoint (% RLA) Software Type Software Version...
  • Page 95 Notes RTAF-SVX001K-EN...
  • Page 96 For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

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