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

Trane Optimus RTHD Installation, Operation And Maintenance Manual

Water-cooled chillers with symbio 800 controls
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Installation, Operation, and Maintenance
Optimus™ Water-Cooled Chillers
with Symbio™ 800 controls
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.
May 2024
SAFETY WARNING
RTHD-SVX01L-EN

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Summary of Contents for Trane Optimus RTHD

  • Page 1 Installation, Operation, and Maintenance Optimus™ Water-Cooled Chillers with Symbio™ 800 controls 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 (HCFCs). Not all refrigerants containing these compounds bump cap, fall protection, electrical PPE and arc have the same potential impact to the environment. Trane flash clothing). ALWAYS refer to appropriate advocates the responsible handling of all refrigerants.
  • Page 3 This document and the information in it are the property of additives. Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to...

  • Page 4: Table Of Contents

    Unit Leveling ......23 Trane Wi-Fi Adapter ..... . 51 Isolation Pads .
  • Page 5 Maintenance ....... 67 Check Sheet and Request for Trane Recommended Maintenance ....67 Service.

  • Page 6: Model Number

    Model Number Nameplates An example of a typical unit model number (M/N) is: RTHD UB1F XG0U AB1A 2LAL B1A2 LALA VXQX EXAA The Optimus™ unit nameplates are applied to the exterior AXY1 76DC XT52 XXXX XXH of the Control Panel. A compressor nameplate is located on the compressor.

  • Page 7: Model Number Descriptions

    Model Number Descriptions Unit Model Number Digit 1, 2, 3, 4 — Chiller Model Digit 14, 15 — Evaporator Digit 23 — Condenser Tube Type RTHD = Water-Cooled Optimus™ Chiller B1 = B1 Evaporator A = Enhanced Fin-Copper - 0.028 in. B2 = B2 Evaporator B = Smooth Bore Copper C1 = C1 Evaporator...
  • Page 8 Model Number Descriptions Digit 34 — Safety Devices Digit 44 — Max RLA (Starter) Digit 49 — External Base Loading X = Standard C = 277 Max RLA (Fixed Speed) X = None E = 364 Max RLA (Fixed Speed) 2 = 2–10 Vdc Input G = 126 Max RLA (Drive and Panel) 4 = 4–20 mA Input...

  • Page 9: Compressor Model Number

    Model Number Descriptions Compressor Model Number Digit 1, 2, 3, 4 — Chiller Model CHHC = Positive Displacement, Helical Rotary (Twin Screw) Hermetic Compressor Digit 5, — Design Control * = Factory Assigned Digit 6 — Frame Size B = B Frame C = C Frame D = D Frame Digit 7 —...

  • Page 10: General Information

    General Information Unit Description Figure 2, p. 10 through show typical Optimus™ units and their components. Water inlet and outlet openings are The RTHD units are single compressor, helical-rotary type, covered before shipment. The oil tank is factory charged water-cooled liquid chillers designed for installation with the proper amount of refrigeration oil.
  • Page 11 General Information Figure 3. Component location — Optimus™ with AFD (front view) Note: Component locations shown in Figure 3, p. 11 the same for units with optional AFD. RTHD-SVX01L-EN...
  • Page 12 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 13: Pre-Installation

    Pre-Installation Inspection • Notify the Trane sales representative and arrange for repair. Do not repair the unit, however, until damage is When the unit is delivered, verify that it is the correct unit inspected by the transportation representative. and that it is properly equipped.
  • Page 14 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 15: Dimensions And Weights

    Dimensions and Weights Unit Weights Table 2. Weights — standard units (wye-delta starter) Shipping Weight Operating Weight Unit Configuration B1B1B1 9292 4215 9867 4476 B1C1D1 9837 4462 10554 4787 B2B2B2 9402 4265 10019 4545 B2C2D2 9953 4515 10653 4832 C1D5E4 12973 5884 13673...

  • Page 16: Unit Dimensions

    • Maximum clearances are given. Some units configurations may require less clearance than others in the same category. • If the room configuration requires a variance to the clearance dimensions, contact your Trane sales office representative. RTHD-SVX01L-EN...
  • Page 17 Dimensions and Weights Figure 5. Service clearances 3’-0” (914 mm) Service Clearance 3’-0” (914mm) Service Clearance Tube Removal Clearance (Either End) 3’-0” (914mm) EDE, DDE, CDE, BBB: Service Clearance 108” (2743mm) (Opposite Tube Removal) EFF, DFF, CEF, BCD: 126” (3200mm) EGG, DGG, CGG: 3’-0”...

  • Page 18: Installation Mechanical

    SVB02*-EN, Optimus™ Water-Cooled place, the unit must be level within 1/2" (12.7 mm) across Chillers, Disassembly Procedure for the length and width of the unit. The Trane Company is not instructions, including weights and rigging responsible for equipment problems resulting from an instruction for components.
  • Page 19 Installation Mechanical Figure 6. Lifting location point weights and dimensions = C.G. Note: Optional AFD is not shown. See Figure 3, p. 11 for location of optional AFD. Lifting weights and center of gravity measurements are shown for both unit configurations in tables below. RTHD-SVX01L-EN...

  • Page 20: Lifting Procedure

    Installation Mechanical Lifting Procedure Figure 7. Rigging configuration Anti-rolling Cable Eyelet or M16 Anti-rolling Internal Thread Cable F (min) Starter Controls 44.5mm dia typ Condenser Evaporator Unit Model Number Location Note: Optional AFD is not shown. See Figure 3, p. 11 for location of optional AFD.
  • Page 21 Installation Mechanical Table 5. Rigging dimensions (continued) Dimension Unit Configuration Units 144.00 132.00 63.40 3.98 24.29 24.00 C2F2F3 3658 3353 1610 120.00 108.00 60.00 7.36 24.09 24.00 D1D1E1 3048 2743 1524 144.00 132.00 63.46 3.90 24.49 24.00 D1F1F2 3658 3353 1612 144.00 132.00...
  • Page 22 Installation Mechanical WARNING 8. Level the unit as described in “Unit Leveling,” p. 9. The unit is shipped with spacers on the compressor Shipping Mounts! mount that protect isolation pads during shipping and Failure to follow below instructions could result in handling.

  • Page 23: Unit Leveling

    Installation Mechanical Figure 10. Compressor shipping spacers C, D, E 1. Check unit level end-to-end by placing a level on the family (discharge side) top surface of the evaporator shell. 2. If there is insufficient surface available on the top of Compressor evaporator shell, attach a magnetic level to bottom of Housing...
  • Page 24 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) Pads extend the full NOTE: Level unit to 1/4” (6.25mm) across length and width. width of the legs Water Pressure Drop Data RTHD-SVX01L-EN...
  • Page 25 Installation Mechanical RTHD-SVX01L-EN...
  • Page 26 Installation Mechanical RTHD-SVX01L-EN...

  • Page 27: 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 28 Refer to the prevent damage to internal components of the current engineering bulletin for further details on evaporator/condenser. Trane assumes no installation. responsibility for equipment damage caused by •...
  • Page 29 Installation Mechanical Figure 14. Condenser and evaporator waterboxes — BBB/BCD 2 Pass Evap Connection Configuration (left or right hand) EVAP COND Depending on Water Inlet Figure 15. Condenser and evaporator waterboxes — CEF/CDE/DDE/EDE/DFF/EFF/CFF 2 Pass Evap Connection Configuration (left or right hand) COND EVAP Depending on Water Inlet...
  • Page 30 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 • Thermometers • Cleanout tees NOTICE • Pipe strainer Heat Exchanger Damage! •...
  • Page 31 The following guidelines must be met to ensure adequate required. Trane assumes no responsibility for oil circulation throughout the system. equipment failures which result from untreated or improperly treated water, or saline or brackish water.
  • Page 32 Installation Mechanical Using untreated or improperly treated water in these units Electrical section). Specific connections and schematic may result in inefficient operation and possible tube wiring diagrams are shipped with the unit. damage. Consult a qualified water treatment specialist to Flow switches must stop or prevent compressor operation determine whether treatment is needed.
  • Page 33 Installation Mechanical NOTICE Table 6. Pressure relief valve data Rated Field Equipment Damage! Dis- Capacity Conn Factory Valve Num- charge Failure to comply with specifications may result in per Relief Pipe Shell Side Location - ber of Setpoint capacity reduction, unit damage and/or relief valve Valve (lba/ Size Conn (in)

  • Page 34: Freeze Protection

    Installation Mechanical 18, p. 34. See Table 7, p. 34 for types and quantities of Table 7. Recommended insulation types insulation required. Type Sq. Feet Location Notes: Evaporator 3/4" wall • Liquid line filter, refrigerant charging valves, water temperature sensors, drain and vent Compressor 3/4"...
  • Page 35 Installation Mechanical Table 8. Freeze protection settings (continued) Ethylene Glycol Propylene Glycol Glycol Minimum Minimum Minimum Minimum Solution Solution Percentage Recommended Low Recommended Recommended Low Recommended Freeze Freeze Refrigerant Temp Leaving Water Temp Refrigerant Temp Leaving Water Temp Point (°F) Point (°F) Cutout (°F) Cutout (°F)

  • Page 36: Installation Electrical

    For variable frequency drives terminations, and for possible shorts or grounds. or other energy storing components provided by Trane or others, refer to the appropriate • For proper electrical component operation, do not manufacturer’s literature for allowable waiting periods locate the unit in areas exposed to dust, dirt, corrosive for discharge of capacitors.

  • Page 37: Units With Afd Option

    The RLA @ Max kW is based on the performance of the motor developing full rated horsepower. Electrical Data Table Information Trane® Select Assist™ selection program at design conditions. If motor kW draw at design conditions is less Compressor motor electrical data is provided in Table 9, p.

  • Page 38: Installer-Supplied Components

    • Fused-disconnect switches or circuit breakers. or other energy storing components provided by Trane or others, refer to the appropriate Power Supply Wiring manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with a CAT III or IV...
  • Page 39 Installation Electrical Figure 19. Electrical Installation 6.1” x 14.6” (156x370mm) opening for incoming line voltage (8) 1/2” conduit knockout for use with 30 volt wiring Class II 30 VAC max Low Voltage VFD Drive Area (6) 1/2” conduit and (4) 1-1/4” conduit Line Voltage knockouts for use with 115 volts wiring Control Section...
  • Page 40 Verify with a CAT III or IV frequency drives or other energy storing voltmeter rated per NFPA 70E that all capacitors have components provided by Trane or others, refer to discharged. the appropriate manufacturer’s literature for allowable waiting periods for discharge of 1.

  • Page 41: Module Connections For Interconnecting

    Equipment Failure! or other energy storing components provided by Failure to follow instructions could result in Trane or others, refer to the appropriate equipment damage. manufacturer’s literature for allowable waiting periods Plugs should NOT be reversed with the jacks. Plugs for discharge of capacitors.
  • Page 42 Installation Electrical shall always be stopped when the evaporator pressure is automatically resetting diagnostic “Condenser Water Flow seen to be close to the Low Side Evaporator Pressure relief Overdue” shall be generated which terminates the prestart valve setting. mode and de-energizes the condenser water pump relay. This diagnostic is automatically reset if flow is established Chilled Water Flow Interlock at any later time.
  • Page 43 Installation Electrical The Reset Ratio on the User Interface is displayed as a Table 11. Chiller events/status descriptions (continued) percentage. To use it in the above equation it must be converted to its decimal form. Description Event/State Reset Ratio percent / 100 = Reset Ratio decimal This output is true whenever the chiller has Example of converting Reset Ratio: been running in one of the Unloading types of...
  • Page 44 Installation Electrical Emergency Stop without regard to differential to start or stop, or to leaving water temperature control. This allows the flexibility to The Symbio 800 provides auxiliary control for a customer prestart or preload a chiller in anticipation of a large load specified/installed latching trip out.

  • Page 45: Afd Drive (Optional)

    AFD Drive (Optional) operation. Trane TR200 drive is an electronic motor controller that converts AC mains input into a variable AC waveform output. The frequency and voltage of the output are regulated to control the motor speed or torque.
  • Page 46 Installation Electrical Table 13. Non-compressor specific parameter Table 13. Non-compressor specific parameter settings settings (continued) Description Setting Description Setting Region Settings Motor Speed Low Limit [Hz] 0-03 North American 4-12 30Hz Display Line 1.1 Small DC Link Voltage 0-20 4-18 Current Limit Display Line 1.3 Heatsink Temp.

  • Page 47: Communications Interface

    Installation Electrical Table 14. Compressor-specific parameter settings (continued) Parameters B1/B2 Motor Frame C1/C2 Motor Frame D1/D2/D3 Motor Frame Motor Frame Iron Loss Resistance 1-36 188.388 142.836 280.73 152.612 152.612 116.132 243.61 125.549 125.549 90.188 193.85 125.549 (ohms) Maximum 3-03 Reference (Hz) Motor Speed 4-14 High Limit (Hz)

  • Page 48: Operating Principles

    Operating Principles This section describes the overall operating principles of the Optimus™ water chiller. Figure 22. Thermal syphon system Condenser Oil Sump TR200 (Optional) Load Solenoid Unload Solenoid EXV 1 EXV 2 Ball valve Evaporator Filter Ball Check Filter valve valve General •...

  • Page 49: Refrigeration Cycle

    Operating Principles Refrigeration Cycle compressor suction, and while the liquid refrigerant is distributed over the tube bundle in the evaporator. The refrigeration cycle can be described using the pressure-enthalpy diagram shown in Figure 23, p. 49. Key Refrigeration Circuit State Points are indicated on the figure and are referenced in the discussion following.
  • Page 50 Operating Principles controls intelligently prevents the chiller from operating simply tripping due to a safety concern. When problems do outside of its limits, or compensates for unusual operating occur, diagnostic messages assist the operator in conditions, while keeping the chiller running rather than troubleshooting.

  • Page 51: Controls

    Trane Wi-Fi Adapter level of sophistication that improves service technician effectiveness and minimizes chiller downtime. This The Trane Wi-Fi adapter kit (equipped with a USB cable) portable PC-based service-tool software supports service enables communication among devices on a Wi-Fi network...

  • Page 52: Pre-Start

    Pre-Start Upon completion of installation, complete the Optimus™ Important: Start-up must be performed by Trane or an RTHD Installation Completion Check Sheet and Request agent of Trane specifically authorized to for Trane Service checklist in chapter “Log and Check perform start-up and warranty of Trane Sheets,”...

  • Page 53: Start-Up And Shutdown

    Start-Up and Shutdown Important: Initial unit commissioning start-up must be 3. The unit will start normally, provided the following performed by Trane or an agent of Trane conditions exist: specifically authorized to perform start-up and a. The Symbio 800 receives a call for cooling and the warranty of Trane products.

  • Page 54: Sequence Of Operation

    Start-Up and Shutdown 7. Close all disconnect switches. diagram can be though of as a state chart, with the arrows and arrow text depicting the transitions between states. 8. Refer to the sequence for daily unit startup for the remainder of the seasonal startup. •...

  • Page 55: Power Up

    'Stopped' to 'Starting' occurs, but it is not apparent to AdaptiView™ screens during a power up of the Symbio the user. Figure 25. Sequence of events: power up diagram Second Trane Logo - Loading User Interface Template... Display Ready...

  • Page 56: Power Up To Starting

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

  • Page 57: Stopped To Starting

    Start-Up and Shutdown Stopped to Starting • Power up Start Delay Timer has expired • Adjustable Stop to Start Timer has expired The stopped to starting diagram shows the timing from a stopped mode to energizing the compressor. The shortest •...

  • Page 58: Starting Wye-Delta

    Start-Up and Shutdown Starting Wye-Delta The Starting Wye-Delta shows the order of operation for this type of starter. Figure 29. Sequence of events: Starting wye-delta Energize Stop and Start Relays Confirm Proper Compressor Rotation within 0.3 seconds (Phase Reversal) and > 5% RLA (Phase Loss) Confirm No Transition Complete Signal (Transition Complete Input Shorted) Confirm >...

  • Page 59: 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 60: 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 61: Normal Shutdown To Stopped Or Run

    Start-Up and Shutdown Normal Shutdown to Stopped or Run Dashed lines on the top attempt to show the final mode if you enter the stop via various inputs. Inhibit The Normal Shutdown diagram shows the Transition from Running through a Normal (friendly) Shutdown. The Figure 33.

  • Page 62: Immediate Shutdown To Stopped Or

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

  • Page 63: 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 Momentary Power Loss Detected MPL Cleared and Need to Cool Starting Waiting to Start...

  • Page 64: Ice Building

    Start-Up and Shutdown Ice Building (Running to Ice Building to Running) This diagram show the transition from normal cooling to ice building, back to normal cooling Figure 36. Sequence of events: ice building (running to ice building to running) Evap Leaving Ice Building Command Ice Building 1.

  • Page 65: Ice Building (Auto To Ice Building To Ice Building 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 66: No Load Start

    Start-Up and Shutdown No Load Start This diagram shows a pre-start sequence with the Start Sequence Type set to 'No Load'. Figure 38. Sequence of events: no load start Removal of all of the following: External Stop Local Stop Evap Leaving Water Tracer/BAS Stop Temp Above the Diff to Stop...

  • Page 67: Maintenance

    Stealth™ • Contact Trane service to leak check the chiller, inspect chiller. safety controls, and inspect electrical components for Use an Operator Log (see “Log and Check Sheets,”...

  • Page 68: Maintenance Procedures

    If chiller measurements vary significantly from sludge and loose material from smooth-bore condenser values listed below, problems may exist with refrigerant tubes. and oil charge levels. Contact Trane service. WARNING Table 16. Operating conditions at full load Heavy Object!

  • Page 69: Cleaning The Evaporator

    Maintenance 4. Properly connect the lift connection device to the Table 18. RTHD Torque waterbox. See Figure 39, p. 69. Ensure lift connection Evaporator Condenser device is securely fastened. 65 ft-lbs (88 Nm) 65 ft-lbs (88 Nm) 5. Install hoist ring on to the lifting connection on the waterbox.

  • Page 70: Oil Sump Level Check

    Operating compressors with service valves open will or other energy storing components provided by result in severe oil loss and equipment damage. Trane or others, refer to the appropriate Never operate the compressor with the sight glass manufacturer’s literature for allowable waiting periods service valves opened.
  • Page 71 Maintenance Operational Inspection Power Applied Note: The power module fan comes on with power. Other fans cycle with drive operation. WARNING 2. Check historic fault codes using AFD control panel (LCP). Live Electrical Components! Note: The AFD control panel is used ONLY for service Failure to follow all electrical safety precautions when and should never be used for machine operation.

  • Page 72: Diagnostics

    Diagnostics Diagnostic Name and Source: Name of Diagnostic and Persistence: Defines whether or not the diagnostic and its its source. Note that this is the exact text used in the User effects are to be manually reset (Latched), or can be either Interface and/or Service Tool displays.
  • Page 73 Diagnostics Table 21. Starter diagnostics (continued) Affects Active Modes Reset Diagnostic Name Severity Persistence Criteria Target [Inactive Modes] Level Compressor current exceeded overload time vs. trip Motor Current Chiller Energized characteristic. For Water Cooled products Must trip = 112% Chiller Immediate Latch Local...
  • Page 74 Diagnostics Table 21. Starter diagnostics (continued) Affects Active Modes Reset Diagnostic Name Severity Persistence Criteria Target [Inactive Modes] Level Detected compressor currents greater than 10% RLA on any or all phases when the compressor was commanded off. Detection time shall be 5 seconds minimum and 10 Starter Contactor seconds maximum.

  • Page 75: Local Communication Drive

    Diagnostics Local Communication Drive Diagnostics Table 22. Local communication drive diagnostics Affects Active Modes Reset Diagnostic Name Severity Persistence Criteria [Inactive Modes] Target Level AFD Bus Over Compressor Bus overvoltage indicated the high bus voltage cut out has Immediate Non-latching Chiller Local Voltage...
  • Page 76 The read back value is not equal the written value. It will be tripped after two retries of write failure. Note: This Energy Meter Write Warning Chiller Latch Remote diagnostic currently applies to Trane Enercept energy meter Value Failure only. Defective Sensor or LLID Display invalid value Evaporator Diff Warning...
  • Page 77 Diagnostics Table 23. Main processor diagnostics (continued) Affects Active Modes Reset Diagnostic Name Severity Persistence Criteria Target [Inactive Modes] Level The Evaporator water flow proof input was open for more than 6-10 contiguous seconds after flow had been proven. Evap pump The pump command status will not be effected.
  • Page 78 Diagnostics Table 23. Main processor diagnostics (continued) Affects Active Modes Reset Diagnostic Name Severity Persistence Criteria Target [Inactive Modes] Level The leaving water temperature exceeded the high evap water temp limit for 15 continuous seconds. The evaporator water pump relay will be de-energized to stop the pump but only if it is running due one of the diagnostics listed on the Only effective if right.
  • Page 79 Diagnostics Table 23. Main processor diagnostics (continued) Affects Active Modes Reset Diagnostic Name Severity Persistence Criteria Target [Inactive Modes] Level a. The inferred Saturated Evap Refrigerant Temperature dropped below the Low Refrigerant Temperature Cutout Setpoint for 450°F-sec while the circuit was running after the ignore period had expired.
  • Page 80 The events that led up to this failure, if known, should be recorded and transmitted to Trane Controls Engineering. Starter failed to arm or start within the allotted time (2 Starter Failed to...

  • Page 81: Communication Diagnostics

    Diagnostics Communication Diagnostics no longer being heard from by the Main Processor. Many LLIDs, such as the Quad Notes: Relay LLID, have more than one functional • The following communication loss diagnostics output associated with it. A comm loss with such a multiple function board, will generate will not occur unless that input or output is required to be present by the particular...
  • Page 82 Diagnostics Table 24. Communication diagnostics (continued) Active Modes Reset Diagnostic Name Affects Severity Persistence Criteria [Inactive Modes] Level Continual loss of communication between the MP and the Comm Loss: Functional ID has occurred for a 30 second period. Chiller Warning External Demand shall discontinue use of the External Demand limit setpoint Chiller...
  • Page 83 Diagnostics Table 24. Communication diagnostics (continued) Active Modes Reset Diagnostic Name Affects Severity Persistence Criteria [Inactive Modes] Level Continual loss of communication between the MP and the Comm Loss: Starter Chiller Immediate Latch Local Functional ID has occurred for a 30 second period. Comm Loss: Continual loss of communication between the MP and the Electronic...

  • Page 84: Wiring

    Wiring Table 26, p. 84 provide lists of field wiring diagrams, Table 26. Wiring drawings — AFD units electrical schematics and connection diagrams for the Drawing Description Optimus™ units. Wiring diagrams can be accessed via e- Library. A laminated wiring diagram kit is also shipped with 2311-6077 Schematic each RTHD unit.

  • Page 85: Log And Check Sheets

    The operator log and check sheet are included for use as • Optimus™ RTHD Installation Completion Check Sheet appropriate, for installation completion verification before and Request for Trane Service (RLC-ADF005*-EN) Trane start-up is scheduled, and for reference during the • Chiller Settings Trane start-up. •...

  • Page 86: Optimus™ Chiller Installation Completion Check Sheet And Request For Trane

    ___________________________ ☐ Pumps run, air bled from system ☐ Strainer installed in entering water piping Important: Start-up must be performed by Trane or an (evaporator and condenser) and cleaned agent of Trane specifically authorized to ☐ Relief valve ventilation piping installed (if perform start-up of Trane®...

  • Page 87: Service

    Optimus™ Chiller Installation Completion Check Sheet and Request for Trane Service ☐ All controls installed and connected Note: Additional time required to properly complete the start-up and commissioning, due to any 6. Testing incompleteness of the installation, will be invoiced at ☐...

  • Page 88: Chiller Settings

    Optimus™ Chiller Installation Completion Check Sheet and Request for Trane Service Chiller Settings Settings Settings Tab Unit Front Panel Chilled Water Setpoint (°F) Front Panel Demand Limit Setpoint (%) Front Panel Cooling Differential to Start (°F) Front Panel Cooling Differential to Stop (°F)

  • Page 89: Operator Log

    Optimus™ Chiller Installation Completion Check Sheet and Request for Trane Service Operator Log Chiller Log Run Time Main Tab 15 min 30 min 1 hr Chiller Mode Evaporator Ent/Lvg Water Temp Condenser Ent/Lvg Water Temp Active Chilled Water Setpoint (°F)
  • Page 90 Optimus™ Chiller Installation Completion Check Sheet and Request for Trane Service Chiller Log Run Time Main Tab 15 min 30 min 1 hr Motor Current Amps L1 L2 L3 (Amps) Input Voltage AB BC CA RTHD-SVX01L-EN...
  • Page 91 Notes RTHD-SVX01L-EN...
  • Page 92 For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

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