Page 1 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. RTWS • RLC-SVX15D-EN Dec. 2023 Confidential and proprietary Trane information...
Page 2 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 procedures.
Page 3 WARNING Contains Refrigerant! System contains oil and refrigerant under high pressure. Recover refrigerant to relieve pressure before opening the system. See unit nameplate for refrigerant type. Do not use non-approved refrigerants, refrigerant substitutes, or refrigerant additives. Failure to follow proper procedures or the use of non-approved refrigerants, refrigerant substitutes, or refrigerant additives could result in death or serious injury or equipment damage.
Page 4: Table Of Contents
Contents Model Number Description …………………………………………………………………………10 Overview ……………………………………………………………………………………………………………………………10 Nameplates …………………………………………………………………………………………………………………10 Figure1.1 Unit Nameplate …………………………………………………………………………………………………10 Figure1.2 Location of Pressure Vessel Nameplates (front) …………………………………………………………11 Figure1.3 Location of Pressure Vessel Nameplates (back) …………………………………………………………11 Figure1.4 RTWS Model Number ……………………………………………………………………………………… 12 Figure1.5 Compressor Model Number (located on compressor nameplate) ………………………………… 15 General Information ………………………………………………………………………………...
Page 5 Contents Table5.1 Weight Distribution …………………………………………………………………………………………… 29 Figure5.5 Center of Gravity …………………………………………………………………………………………… 30 Table5.2. Center of Gravity Dimension ……………………………………………………………………………… 30 Evaporator Piping ……………………………………………………………………………………………………………… 31 Drainage …………………………………………………………………………………………………………………… 31 Reversing Water Boxes ………………………………………………………………………………………………… 32 Figure5.6 RTWD Evaporator Water Boxes …………………………………………………………………………… 32 Evaporator Piping Components ……………………………………………………………………………………… 32 Figure5.7 Evaporator Pressure Drop Curves - RTWS (2 pass, 50 Hz) ……………………………………………...
Page 6 Contents Chilled Water Reset (CWR) …………………………………………………………………………………………… 57 Communications Interface options ………………………………………………………………………………………… 60 Optional Tracer Communications Interface ………………………………………………………………………… 60 Table6.10 Wire Size ……………………………………………………………………………………………………… 60 LonTalk Communications Interface for Chillers (LCI-C) …………………………………………………………… 61 Installation Recommendations ……………………………………………………………………………………… 61 Table6.11 LonTalk Points List …………………………………………………………………………………………… 62 BACnet Communications Interface for Chillers (BCI-C) …………………………………………………………………...
Page 7 Contents DynaView Interface …………………………………………………………………………………………………………… 90 Figure 8.1 DynaView …………………………………………………………………………………………………… 90 KEY FUNCTIONS ………………………………………………………………………………………………………… 90 Display Screens ………………………………………………………………………………………………………… 91 Figure 8.2 The Basic Screen Format ………………………………………………………………………………… 92 Figure 8.3 Auto/Stop Screen …………………………………………………………………………………………… 93 Figure 8.4 Diagnostic Screen ………………………………………………………………………………………… 94 Figure 8.5 Manual Override Screen ………………………………………………………………………………… 95 Unit Screen ………………………………………………………………………………………………………………...
Page 8 Contents Power Up and Self Tests ………………………………………………………………………………………………… 121 Figure 8.25 Power Up and Self Tests Process Screen 1 …………………………………………………………… 121 Figure 8.26 Power Up and Self Tests Process Screen 2 …………………………………………………………… 121 Figure 8.27 Power Up and Self Tests Process Screen 3 ………………………………………………………… 122 Diagnostic Screens ………………………………………………………………………………………………………...
Page 9 Contents Limit Conditions ……………………………………………………………………………………………………………… 159 Table10.1 Limit Conditions …………………………………………………………………………………………… 159 Table10.2 Start-up Log ………………………………………………………………………………………………… 160 Unit Shutdown …………………………………………………………………………………… 161 Normal Shutdown to Stopped ……………………………………………………………………………………………… 161 Figure11.1 Normal Shutdown ………………………………………………………………………………………… 161 Seasonal Unit Shutdown …………………………………………………………………………………………………… 162 Maintenance and Service ………………………………………………………………………… 163 Overview …………………………………………………………………………………………………………………………...
Page 10: Model Number Description
5,638,691 5,761,914 5,809,794 5,884,494 5,950,443 6,035,651 6,049,299 6,050,098 6,067,804 6,131,471 6,161,395 6,167,713 PATENTS/CORRESPONDING FOREIGN PATENTS OWNED BY TRANE. 6,266,964 6,276,152 6,293,112 6,341,492 6,341,493 6,357,239 6,382,310 6,516,627 6,563,287 6,650,122 6,666,042 6,830,099 6,868,695 7,020,156 7,088,346 7,158,121 7,202,858 TRANE AIR CONDITIONING SYSTEMS (CHINA) CO., LTD MADE IN CHINA X39003321020C Compressor Nameplate The compressor nameplate provides the following information: •...
Page 11 Model Number Description • Utilization range. • Recommended refrigerant. Pressure Vessel Nameplates The pressure vessel nameplate is different for the evaporators, condensers and oil separators (RTWS only). The evaporator/condenser nameplates are located on the left portion of the shells. The insulation over the nameplates is intentionally left unglued, for ease in viewing the nameplate.
Page 12 Model Number Description Model Number Coding System The model numbers for the unit and the compressors are comprised of numbers and letter which represent features of the equipment. Each position or group of positions, in the number is used to represent a feature. For example, Unit voltage contains the number “C”.
Page 13: Connection Direction
Model Number Description Digit 01, 02, 03, 04 – Chiller Model = Special Digit 25 – Cond Water Side RTWS = Water Cooled Chiller Series Pressure Digit 16 – Pressure Relief Valve R™ Simplex = 10.4 Bar( 150 psi) Cond Water = Dual Relief Valve with 3-Way Pressure Digit 05, 06, 07 –...
Page 14: Current Limit Setpoint
Model Number Description Modbus interface = No Sound Reduction Package Digit 31 – External Water & Digit 43 – Insulation Digit 38 – Motor Current Analog Current Limit Setpoint = No Insulation Output (%RLA) = Factory Insulation - All Cold = No External Water &...
Page 15 Model Number Description Figure1.5 Compressor Model Number (located on compressor nameplate) RTWS • RLC-SVX15D-EN...
Page 16: General Information
The chilled/cooling water inlet and outlet openings are covered for shipment. The RTWS series features Trane's exclusive Adaptive Control logic with CH530 controls. It monitors the control variables that govern the operation of the chiller unit. Adaptive Control logic can correct these variables, when necessary, to optimize operational efficiencies, avoid chiller shutdown, and keep producing chilled water.
Page 17: General Data
General Information General Data Table2.1 General Data - 50 Hz Size Compressor Quantity Evaporator 29.8 35.7 48.5 55.6 Water Storage (gal) 12.8 14.7 Two Pass Arrangement Water Conn. Size (L/s) Minimum Flow (gpm) (L/s) 13.8 17.3 22.3 26.5 Maximum Flow (gpm) Three Pass Arrangement...
Page 18: Pre-Installation
• Notify the carrier's terminal of the damage immediately, by phone and by mail. Request an immediate, joint inspection of the damage with the carrier and the consignee. • Notify the Trane sales representative and arrange for repair. Do not repair the unit, however, until damage is inspected by the carrier's representative.
Page 19: Pre-Installation
Pre-Installation A list of the contractor responsibilities typically associated with the unit installation process is provided（See Table 3.1） Note: Unit Start-up must be completed by a qualified Trane service technician. Table 3.1 contractor responsibilities Type of Trane Supplied Trane Supplied...
Page 20: Unit Dimensions/Weights
Unit Dimensions/Weights Unit Dimensions and Service Clearances Figure 4.1 Unit Dimensions 2 PASS UNIT Note: X, Y – length of condenser waterbox at the direction of axis CONTROL PANEL POWER INTERFACE VIEW A-A RTWS • RLC-SVX15D-EN...
Page 21 Unit Dimensions/Weights Figure 4.2 Unit Dimensions 3 PASS UNITS NOTES: 1. T, U – length of evaporator (2 pass) waterbox at the direction of axis. 2. V, W – length of evaporator (3 pass) waterbox at the direction of axis. CONTROL PANEL POWER INTERFACE VIEW A-A RTWS •...
Page 22 Unit Dimensions/Weights Table 4.1 Specification of Symbol for Unit Dimensions 65-85 Ton 105-125 Ton RTWS mm(in) mm(in) SSST SSST A( Ⅱ PASS) 2996(118) 3028(119.2) B ( Ⅲ PASS) 3087(121.6) 3134(123.4) 1645(64.8) 2024(79.7) 1690(66.5) 2068(81.4) 890(35.1) 1145(45) 890(35.1) 1145(45) 665(26.2) 650(25.6) 245(9.6) 232(9.1) 656(25.9)
Page 23 Unit Dimensions/Weights Figure4.3 Unit Service an d Maintenance RTWS • RLC-SVX15D-EN...
Page 24: Unit Weights
Unit Dimensions/Weights Unit Weights Table4.2 Unit Weights Shipping Weight Operating Weight Model Efficiency kg (lbs) kg (lbs) HIGHT 1950 (4300) 2011 (4432) HIGHT 2144 (4727) 2217 (4887) HIGHT 2532 (5580) 2634 (5807) HIGHT 2556 (5633) 2670 (5887) 065-AFD HIGHT 1992 (4390) 2053 (4524) 085-AFD HIGHT...
Page 25: Installation - Mechanical
Refer to the chapter 4 on “Unit Dimensions/ Weights” for unit operating weights. Once in place, the unit must be level within 1/4" (6.4 mm) over its length and width. The Trane Company is not responsible for equipment problems resulting from an improperly designed or constructed foundation.
Page 26: Lifting Procedure
Installation - Mechanical Lifting Procedure Attach chains or cables to lifting beam, as shown in Figure5.1. Lifting beam crossbars MUST be positioned so lifting cables do not contact the sides of the unit. Attach the anti-rolling cable around the compressor suction pipe. Adjust as necessary for even level lift. WARNING Lifting and Moving Instructions! Do not use cables (chains or slings) except as shown.
Page 27: Unit Isolation And Leveling
Isolation Pads The elastomeric pads shipped (as standard) are adequate for most installations. For additional details on isolation practices, refer to Trane Engineering Bulletin RLC-PRB027-EN 《RTWS Chiller Sound Ratings and Installation Guide》, or consult an acoustical engineer for sound-sensitive installations.
Page 28 Installation - Mechanical 3. Lower the unit on to the isolators and secure the isolator to the unit with a nut. Maximum isolator deflection should be approximately 6mm（1/4”）. 4. Level the unit carefully. Fully tighten the isolator mounting bolts. Figure5.3 RTWS Neoprene Isolator Load Part Number Size Color...
Page 29 Installation - Mechanical Figure5.4 Mounting Point Locations and Weights Table5.1 Weight Distribution Unit Size Efficiency kg (lbs) kg (lbs) kg (lbs) kg (lbs) HIGH 572 (1261) 557 (1228) 446 (983) 432 (952) HIGH 648 (1429) 605 (1334) 495 (1091) 466 (1027) HIGH 826 (1821)
Page 30 Installation - Mechanical Figure5.5 Center of Gravity Table5.2. Center of Gravity Dimension Unit Size Efficiency mm (in) mm (in) mm (in) HIGH 1234 (49) 696 (27) 386 (15) HIGH 1234 (49) 724 (29) 377 (15) HIGH 1144 (45) 753 (30) 403 (16) HIGH...
Page 31: Evaporator Piping
It is recommended that the services of a qualified water treatment specialist be engaged to determine what water treatment, if any, is required. Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water.
Page 32: Reversing Water Boxes
Installation - Mechanical vents at high points in the piping to bleed air from the chilled water system. Install necessary pressure gauges to monitor the entering and leaving chilled water pressures. Provide shutoff valves in lines to the gauges to isolate them from the system when they are not in use.
Page 33 Use Piping Strainers! To prevent evaporator or condenser damage, pipe strainers must be installed in the water supplies to protect components from water born debris. Trane is not responsible for equipment- only-damage caused by water born debris. Leaving Chilled Water Piping •...
Page 34 Installation - Mechanical Electrical section). Specific connections and schematic wiring diagrams are shipped with the unit. Flow switches must prevent or stop compressor operation if either system water flow drops off below the required minimum shown on the pressure drop curves as in Figures 5.7 ~5.9. Follow the manufacturer’s recommendations for selection and installation procedures.
Page 35 Installation - Mechanical Figure5.7 Evaporator Pressure Drop Curves - RTWS (2 pass, 50 Hz) RTWS • RLC-SVX15D-EN...
Page 36 Installation - Mechanical Figure5.8 Evaporator Pressure Drop Curves - RTWS (3 pass, 50 Hz) RTWS • RLC-SVX15D-EN...
Page 37 Installation - Mechanical Figure5.9 Condenser Pressure Drop Curves - RTWS (2 pass, 50 Hz) RTWS • RLC-SVX15D-EN...
Page 38: Condenser Water Piping
Installation - Mechanical Condenser Water Piping Condenser water inlet and outlet types, sizes and locations are given in the Unit Dimensions and Weights. Condenser pressure drops are shown in Figure 5.9. Condenser Piping Components Condenser piping components and layout vary, depending on the location of connections and the water source.
Page 39: Water Regulating Valve
It is recommended that the services of a qualified water treatment specialist be engaged to determine what water treatment, if any, is required. Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water.
Page 40: Refrigerant Relief Valve Venting
Installation - Mechanical Refrigerant Relief Valve Venting Condenser Pressure Relief Valve Venting All RTWS units utilize a refrigerant-pressure relief valve which must be vented to the outdoor atmosphere. The valves are located at the top of the condenser. See Figure5.10 and Table5.3. Refer to local codes for relief valve vent line sizing requirements.
Page 41 Installation - Mechanical Figure5.10 Condenser Relief Valves Relief Valve Table5.3 Relief Valve Description Condenser Evaporator Relief Setpoint 300 psig 200 psig Units RTWS RTWS Quantity Relief Rate 42.5 lb/min 48 lb/min ASME: 9.7 mm(0.38 ” ) Throat diameter 12.7 mm (0.5 ” ) GB: 11.7mm(0.46 ”...
Page 42: Evaporator Pressure Relief Valve Venting
Installation - Mechanical Evaporator Pressure Relief Valve Venting All RTWS units utilize a low-side refrigerant-pressure relief valve which must be vented to the outdoor atmosphere. The valves are located on top of the evaporator shell, two per evaporator. Refer to Figure5.11 and Table5.3. Refer to local codes for relief valve vent line sizing requirements. Note: Vent line length must not exceed code recommendations.
Page 43 Installation - Mechanical Figure5.11 Evaporator Relief Valves Relief Valve RTWS • RLC-SVX15D-EN...
Page 44: Installation - Electrical
NOTICE Any change of the protection set points might result the loss of related guarantee rights without the authorization or approval from Trane Company. Important! Do not allow conduit to interfere with other components, structural members or equipment.
Page 45 Installation - Electrical Table6.1 Electrical data – 50Hz - standard condensing temperature(SSST) Unit Wiring(Amps) Motor Data(Amps) 　　 Unit ID Rated Voltage LRA YD LRA XL 380/50/3 RTWS 065 400/50/3 380/50/3 RTWS 085 400/50/3 380/50/3 RTWS 105 400/50/3 380/50/3 1089 RTWS 125 400/50/3 1089...
Page 46 Installation - Electrical Table6.3 Electrical data – 50Hz - high condensing temperature Unit Wiring(Amps) Motor Data（Amps）　　 Unit ID Rated Voltage LRA YD LRA XL 380/50/3 RTWS 065 400/50/3 380/50/3 RTWS 085 400/50/3 380/50/3 RTWS 105 400/50/3 380/50/3 1089 RTWS 125 400/50/3 1089...
Page 47 Installation - Electrical Table6.5 Customer wire selection (Recommend) - 50Hz - standard condensing temperature(AFD) Wire Size Ground Size Unit ID Rated Voltage Size Amps(A) Ring Terminal 380/50 DT35-8 RTWS 065 400/50 DT35-8 380/50 DT50-8 RTWS 085 400/50 DT50-8 380/50 DT70-10 RTWS 105 400/50 DT70-10...
Page 48: Installer-Supplied Components
Installation - Electrical Installer-Supplied Components Customer wiring interface connections are shown in the electrical schematics and connection diagrams that are shipped with the unit. The installer must provide the following components if not ordered with the unit: • Power supply wiring (in conduit) for all field-wired connections. •...
Page 49: Control Power Supply
Interconnecting Wiring Chilled Water Flow (Pump) Interlock The Model RTWS Series chiller requires a field-supplied control voltage contact input through a flow proving switch 5S5 and an auxiliary contact 5K9 AUX. Connect the proving switch and auxiliary contact to 1A15 J3-1 and 1X5-20. Refer to the field wiring for details.
Page 50: Chilled Water Pump Control
Installation - Electrical Chilled Water Pump Control An evaporator water pump output relay 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.
Page 51: Alarm And Status Relay Outputs (Programmable Relays)
Installation - Electrical as though there was a zero time delay. Exceptions (see above table) whereby the relay continues to be energized occur with: A Low Chilled Water Temp. diagnostic (non-latching) (unless also accompanied by an Evap Leaving Water Temperature Sensor Diagnostic) A starter contactor interrupts failure diagnostic, in which a compressor continues to draw current even after commanded to have shutdown A Loss of Evaporator Water Flow diagnostic (non-latching) and the unit is in the AUTO mode,...
Page 52 Installation - Electrical Table6.8 Alarm and Status Relay Output Configuration Table Description Alarm - Latching This output is true whenever there is any active diagnostic that requires a manual reset to clear, that affects the Chiller, or the Circuit. This classification does not include informational diagnostics.
Page 53: Low Voltage Wiring
Installation - Electrical Table6.9 Default Assignments Relay Relay 1 Terminals J2 -12,11,10: Alarm Relay 2 Terminals J2 - 9,8,7: Chiller Running Relay 3 Terminals J2-6,5,4: Maximum Capacity Relay 4 Terminals J2-3,2,1: Chiller Limit If any of the Alarm/Status relays are used, provide electrical power, 115 VAC with fused disconnect to the panel and wire through the appropriate relays (terminals on 1A13).
Page 54 Installation - Electrical to the RUN: UNLOAD operating mode and cycle off. Unit operation will be inhibited. Closure of the contacts will permit the unit to return to normal operation. Field-supplied contacts for all low voltage connections must be compatible with dry circuit 24 VDC for a 12 mA resistive load.
Page 55 Installation - Electrical If, while in ice building mode, the unit gets down to the freeze stat setting (water or refrigerant), the unit will shut down on a manually resettable diagnostic, just as in normal operation. Connect leads from 5K20 to the proper terminals of 1A10. Refer to the field diagrams which are shipped with the unit.
Page 56 Installation - Electrical The following equations apply: Voltage Signal Current Signal As generated from external source VDC=0.1455*(ECWS)+0.5454 mA=0.2909(ECWS)+1.0909 As processed by CH530 ECWS=6.875*(VDC)-3.75 ECWS=3.4375(mA)-3.75 If the ECWS input develops an open or short, the LLID will report either a very high or very low value back to the main processor.
Page 57: Chilled Water Reset (Cwr)
Installation - Electrical The J2-3 and J2-6 terminal is chassis grounded and terminal J2-1 and J2-4 can be used to source 12 VDC. The ECLS uses terminals J2-2 and J2-3. ECWS uses terminals J2-5 and J2-6. Both inputs are only compatible with high-side current sources. Figure6.2 Wiring Examples for ECLS and ECWS Chilled Water Reset (CWR) CH530 resets the chilled water temperature set point based on either return water temperature,...
Page 58 Installation - Electrical and CWS' > or = CWS and CWS' - CWS < or = Maximum Reset Outdoor CWS' = CWS + RATIO * (START RESET - TOD) and CWS' > or = CWS and CWS' - CWS < or = Maximum Reset where CWS' is the new chilled water set point or the "reset CWS"...
Page 59 Installation - Electrical select a Constant Return Reset. Constant Return Reset will reset the leaving water temperature set point so as to provide a constant entering water temperature. The Constant Return Reset equation is the same as the Return Reset equation except on selection of Constant Return Reset, the MP will automatically set Ratio, Start Reset, and Maximum Reset to the following.
Page 60: Communications Interface Options
Installation - Electrical Communications Interface options Optional Tracer Communications Interface This option allows the Tracer CH530 controller to exchange information (e.g. operating setpoints and Auto/Standby commands) with a higher-level control device, such as a Tracer Summit or a multiple-machine controller. A shielded, twisted pair connection establishes the bi-directional communications link between the Tracer CH530 and the building automation system.
Page 61: Lontalk Communications Interface For Chillers (Lci-C)
• Termination resistors are required • 105 ohms at each end for Level 4 wire • 82 ohms at each end for Trane "purple" wire • LCI-C topology should be daisy chain • Zone sensor communication stubs limited to 8 per link, 50 feet each (maximum) •...
Page 62 Installation - Electrical Table6.11 LonTalk Points List LonTalk Communications Interface Variable Inputs SNVT_Type type start(1) Chiller Enable/Disable binary SNVT_switch /stop(0) Chilled Water Setpoint analog temperature SNVT_temp_p Current Limit Setpoint analog % current SNVT_lev_percent Chiller Mode Note SNVT_hvac_mode Variable Outputs SNVT_Type type on(1) Chiller On/Off...
Page 63: Bacnet Communications Interface For Chillers (Bci-C)
RTWS unit to communicate on a BACnet communications network. BACnet Data Points and Configuration Property Definitions The BCI-C device allows certain models of Trane chillers with CH530 controls to communicate with. BACnet systems and devices using BACnet MS/TP . This section includes information about: •...
Page 64 Installation - Electrical Interoperability Building Blocks (Annex K) Data Sharing Description Supported BIBB Data Sharing-COV-B (DS-COV-B) √ Data Sharing-ReadProperty-A (DS-RP-A) Data Sharing-ReadProperty-B (DS-RP-B) √ √ Data Sharing-ReadPropertyMultiple-B (DS-RPM-B) √ Data Sharing-WriteProperty-A (DS-WP-A) Data Sharing-WriteProperty-B (DS-WP-B) √ √ Data Sharing-WritePropertyMultiple-B (DS-WPM-B) Alarm and Event Management Description Supported BIBB √...
Page 65: Object Types
Installation - Electrical Object Types Table6.12 Descriptions and configurations Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete Analog • ID Object_Identifier • Object_Name • Description Yes, Input • Object_Name • Description • Reliability only •...
Page 66 Installation - Electrical Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete • ID Object_Identifier • Object_Name • Description Yes, Analog Value • Object_Name • Description • Reliability only • Object_Type • Out_Of_Service • Min_Pres-Value user •...
Page 67 Installation - Electrical Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete • ID Object_Identifier • Object_Name • Description Yes, Binary Output • Object_Name • Description • Inactive_Text only • Object_Type • Out_Of_Service • Active_Text user •...
Page 68 Installation - Electrical Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete • ID Object_Identifier • Object_Name • Description Yes, Binary • Object_Name • Description • Inactive_Text Value only • Object_Type • Out_Of_Service • Active_Text user •...
Page 69 Installation - Electrical Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete • ID Object_Identifier • Object_Name • Location None None Device • Object_Name • Location • Description • Object_Type • Description • Max_Segments_ • System_Status •...
Page 70 Installation - Electrical Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete • Object_Identifier • Object_Name • State_Text Yes, Multistate Input • Object_Name • Description • Reliability only • Object_Type • State_Text • Time_Delay user •...
Page 71 Installation - Electrical Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete • Object_Identifier • Object_Name • State_Text Yes, Multistate Value • Object_Name • Description • Reliability only • Object_Type • State_Text • Relinquish_Default user •...
Page 72 Installation - Electrical Object Required Properties Read Properties Written(a) Optional Properties Read Ability Ability Type Create Delete • Object_Identifier • Object_Name • Start_Time Yes, Trend • Object_Name • Log_Enable • Stop_Time only • Object_Type • Stop_Time • Log_ user • Log_Enable •...
Page 73: Bacnet Protocol
Installation - Electrical BACnet Protocol Data Link Layer Options Supported Data Link Layer Description Option Option ANSI/ATA 878.1, 2.5 Mb ARCNET (Clause 8) ANSI/ATA 878.1, RS-485 ARCNET (Clause 8), Baud Rate(s) BACnet IP , (Annex J) BACnet IP , (Annex J), Foreign Device ISO 8802-3, Ethernet (Clause 7)(10Base2, 10Base5, 10BaseT, Fiber) LonTalk, (Clause 11), Medium MS/TP Master (Clause 9), Baud Rate(s): 9600, 19200, 38400, 76800, and 115200...
Page 74: Object Data Points And Diagnostic Data Points With Corresponding Chiller Models
Installation - Electrical Character Sets Indicates support for multiple characters sets, but does not imply that all character sets are supported simultaneously. Maximum supported string length is 64 bytes (any character set). Character Set Descriptions Supported √ ANSI X3.4 IBM/Microsoft DBCS ISO 10646 (UCS-4) ISO 10646 (UCS2) √...
Page 75 Installation - Electrical Table6.14 Analog Input Object Identifier Object Name Description Units Active Cool/Heat Setpoint Active chiller water or hot water Degrees- Analog Input 1 Temperature setpoint Fahrenheit (64) Active capacity current limit Analog Input 2 Active Current Limit Percent (98) setpoint.
Page 76 Installation - Electrical Object Identifier Object Name Description Units Degrees- Analog Input 57 Outdoor Air Temperature Outdoor air temperature Fahrenheit(64) Percentage of condenser water Analog Input 58 Condenser Control Output Percent(98) flow being requested by the chiller Analog Input 59 Phase AB Voltage-Compressor 1A Phase AB voltage compressor 1A volts...
Page 77 Installation - Electrical Table6.15 Multistate Output Reling Object Identifier Object Name Description Object States Default Multi-StateOutput 1 Chiller Mode Command Mode of operation of the 1=cooling 1=HVAC_Heat chiller 2=HVAC_Cool 3=HVAC_Ice 4=Not Used Table6.16 Multistate Input BCI-C Object Identifier Object Name Description Object States Multi-State Input 1...
Page 78 Installation - Electrical BCI-C Object Identifier Object Name Description Object States Multi-State Input 5 Model Information Indicates the model type of the 1 ＝ RTA chiller 2 ＝ CVH 3 ＝ CVG 4 ＝ CVR 5 ＝ CDH 6 ＝ RTH 7 ＝...
Page 79 Installation - Electrical Table6.17 Binary Output Object Object Name Description Reling Object States Identifier Default Binary Output Chiller Auto Stop Allows the chiller to run if True Inactive = Stop Command conditions for running are met. Active = Auto Binary Output Remote Diagnostic Resets remotely diagnostics that False...
Page 80: Bci-C Alarming
Installation - Electrical Object Identifier Object Name Description Object States Binary Input 24 Shutdown Alarm Indicates if a shutdown alarm is active Inactive = No Alarm Present Active = None Binary Input 25 Last Diagnostic Indicates last diagnostic for the chiller Inactive = Off Active = On BCI-C Alarming...
Page 81: Rtws Operating Principles
RTWS Operating Principles This section contains an overview of the operation of RTWS Series R chillers equipped with microcomputer-based control systems. It describes the overall operating principles of the RTWS water chiller. Note: To ensure proper diagnosis and repair, contact a qualified service organization if a problem should occur.
Page 82 RTWS Operating Principles Figure7.1 RTWS Components (front view) Control Panel Compressor Isolation Valve Evaporator Refrigerant Filter Condenser Figure7.2 RTWS Components (back view) Oil Separator Compressor Junction Box Discharge Service Valve Expansion Valve Relief Valve Suction Service Valve RTWS • RLC-SVX15D-EN...
Page 83: Refrigeration (Cooling) Cycle
Refrigeration (Cooling) Cycle Overview 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.
Page 84 RTWS Operating Principles Figure7.3 Pressure/Enthalpy Curve 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.
Page 85 RTWS Operating Principles system (State Pt. 5). The mixture is distributed evenly over the tube bundle in the evaporator. The RTWS 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.
Page 86: Oil System Operation
RTWS Operating Principles Oil System Operation Overview Oil that collects in the bottom of the oil separator is at condensing pressure during compressor operation; therefore, oil is constantly moving to lower pressure areas. As the oil leaves the separator, it passes through the oil cooler. It then goes through the service valve and filter.
Page 87: Compressor Motor
RTWS Operating Principles Compressor Motor A two-pole, hermetic, induction motor (3000 rpm at 50 Hz, 3600 rpm at 60 Hz) directly drives the compressor rotors. The motor is cooled by suction refrigerant gas from the evaporator, entering the end of the motor housing through the suction line. Compressor Rotors Each compressor has two rotors - “male”...
Page 88: Oil Separator
RTWS Operating Principles Figure7.6 RTWS Compressor Oil Separator The oil separator consists of a vertical tube, joined at the top by the refrigerant discharge line from the compressor. This causes the refrigerant to swirl in the tube and throws the oil to the outside, where it collects on the walls and flows to the bottom.
Page 89: Controls Interface
Controls Interface CH530 Communications Overview The Trane CH530 control system that runs the chiller consists of several elements: • The main processor collects data, status, and diagnostic information and communicates commands to the starter module and the LLID (for Low Level Intelligent Device) bus. The main processor has an integral display (DynaView).
Page 90: Dynaview Interface
Controls Interface DynaView Interface The DynaView share the same enclosure design: weatherproof and durable plastic for use as a stand-alone device on the outside of the unit or mounted nearby. The display on DynaView is a 1/4 VGA display with a resistive touch screen and an LED backlight. The display area is approximately 4 inches wide by 3 inches high (102mmx60mm).
Page 91: Display Screens
Controls Interface increment(+) or decrement(-) arrows. Action Buttons Action buttons are buttons which appear temporarily and provide the operator with a choice such as Enter or Cancel. The operator indicates his choice by touching the button of choice. The system then takes the appropriate action and the button typically disappears. Hot Links Hot links are a graphical user interface (GUI) model used to navigate from one view to another view.
Page 92 Controls Interface Figure 8.2 The Basic Screen Format The file folder tabs across the top of the screen are used to select the various display screens. Scroll arrows are added as needed to indicate more file tabs (choices) are available, if necessary. The tabs are not end around.
Page 93 Controls Interface Auto, Stop/Panic Stop The Auto and Stop keys will be used to put chiller into Auto or Stop mode. The selected key will be black. The chiller will stop when the Stop key is touched, entering the Run Unload mode. An informational screen will be displayed for 5 seconds indicating that a second depression of an “Immediate Stop”...
Page 94 Controls Interface Figure 8.4 Diagnostic Screen A complete listing of diagnostics is included in the Diagnostic Section. The diagnostic screen is accessible by depressing the Alarms enunciator. A scrollable list of the last (up to 10) active diagnostics will be presented. Performing a Reset All Active Diagnostics will reset all active diagnostics regardless of type, machine or refrigerant circuit.
Page 95: Unit Screen
Controls Interface Figure 8.5 Manual Override Screen Unit Screen The Unit screen is a “dashboard” of the chiller. High level status information is presented so that a user can quickly understand the mode of operation of the chiller. Figure 8.6 Unit Screen – Standard RTWS The Chiller Operating Mode will present a top level indication of the chiller mode (i.e.
Page 96 Controls Interface Table 8.1 Unit Screen Data Fields Table RTWS Description Units Precision Chiller Mode (>> submodes) enumeration Circuit 1 Mode (>> submodes) enumeration Evap Ent/Lvg Water Temp ℉ / ℃ Cond Ent/Lvg Water Temp ℉ / ℃ Chilled Water Setpoint ℉...
Page 97 Controls Interface Figure8.8 Circuit Operating Mode - Sub Level Table 8.2 Chiller Modes Chiller Level Modes Description Top Level Mode Sub-modes The chiller is not running either circuit, and cannot run without Stopped intervention. Local Stop Chiller is stopped by the DynaView Stop button command– cannot be remotely overridden.
Page 98 Controls Interface Chiller Level Modes Description Ice Building Is The chiller is inhibited from running as the Ice Building process has Complete been normally terminated on the evaporator entering temperature. The chiller will not start unless the ice building command (hardwired input or Building Automation System command) is removed or cycled.
Page 99 Controls Interface Chiller Level Modes Description Waiting For The unit will wait up to 20 minutes in this mode for water flow to be Evap(orator)* Water established per the flow switch hardwired input. Flow Waiting For A Need To The chiller will wait indefinitely in this mode, for a leaving water Cool temperature higher than the Chilled Water Setpoint plus some control dead-band.
Page 100 Controls Interface Chiller Level Modes Description Running – Limit The circuit on the chiller is currently running, but the operation of the circuit on the chiller is being actively limited by a chiller level limit. Other sub modes that apply to the Chiller Running top level modes may also be displayed here.
Page 101 Controls Interface Table 8.3 Circuit Level Operating Modes Circuit Level Mode Description Top Level Mode Sub-modes Stopped The circuit is not running, and cannot run without intervention. Diagnostic Shutdown - The circuit has been shutdown on a latching diagnostic. Manual Reset Front Panel Circuit The circuit is manually locked out by the circuit lockout setting Lockout...
Page 102 Controls Interface Circuit Level Mode Description Running The compressor on the given circuit is currently running. EXV Controlling Liquid level control of the Electronic Expansion Valve has Differential Pressure 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 flow for the compressor until the condenser water loop can warm up to approximately 10 ℃...
Page 103 Dynaview NOTICE **Any change of the protection setpoints might result the loss of related guarantee rights without the authorization or approval from Trane Company. NOTICE **Minimum LERTC (Low Evaporator Refrigerant Temperature Cutout) and minimum LWTC (Leaving Water Temperature Cutout) of evaporator should be set according to Appendix 1, when the brine solution is used in low temperature applications.
Page 104 Controls Interface water setpoint is the setpoint that is used in heat mode. Both setpoints result from the logical hierarchy of setpoint arbitration by the main processor. The water setpoint will be displayed to 0.1 degrees Fahrenheit or Celsius. Touching the double arrow to the left of the Active Chilled Water Setpoint or to the left of the Active Hot Water Setpoint will take the user to the respective active water setpoint arbitration sub-screen.
Page 105: Settings Screen
Controls Interface with the exception that Active Current Limit Setpoint does not have an external source. Settings Screen All the settings which are changeable and current value are listed in the settings screen. The operator can select the setting which needs to be adjusted by touching text specification or setpoints.
Page 106 Controls Interface Table 8.4 Chiller settings Description Resolution or Enumerations Units Front Panel Chilled Water Setpt ℉ / ℃ ℉ ront Panel Hot Water Setpt ℉ / ℃ Front Panel Current Limit Setpt %RLA Front Panel Ice Build Cmd Auto/ On Enum Front Panel Ice Termination Set- ℉...
Page 107 Controls Interface Table 8.7 Circuit Manual Control Settings Description Resolution or Enumerations Units Compressor 1A Pumpdown Pumpdown / No Enum Front Panel Ckt Lockout Not Locked Out,/Locked Out Enum Expansion Valve Control Auto Enum Table 8.8 Display Settings 描述分辨率或文本单位...
Page 108 Controls Interface Analog Setting Subscreens Analog settings subscreen is divided into two parts. Analog Settings Subscreen displays the current value of the chosen setpoint in the upper ½ of the display. It is displayed in a changeable format consistent with its type. Binary setpoints are considered to be simple two state enumeration and will use radio buttons.
Page 109 Controls Interface Enumerated Settings Subscreen The enumerated setpoint sub-screen only has radio keys without Cancel or Enter key. Once a radio key is depressed then new enumeration is immediately assumed. Figure 8.12 Enumerated Settings Subscreen Mode Override Subscreens The Mode Override subscreen only has radio keys without Cancel or Enter key. Once a radio key is depressed then new value is immediately assumed.
Page 110 Controls Interface Date/Time Subscreen The setpoint screen for setting up the CH530 date is shown below: The user must select Day, Month, or Year and then use the arrows “ ”to adjust. ”and“ Figure 8.14 Date/Time Subscreen 1 The setpoint screen for setting up the CH530 time with a 12 hour format is shown below: The user must select Hour, or Minute and then use the arrows “...
Page 111: Local Time Of Day Schedule Screen
Controls Interface Local Time of Day Schedule Screen If the user want to visit local Time of Day Schedule screen, please choose the option “Local Time of Day Scheduling” from“Configuration->Options->BAS communication/local Time of Day Schedule(COMM)”in “Techview”. The local Time of Day Schedule screen is displayed in menu “Settings->Feature Settings”. Following figure shows the overall feature endable/disable settings which can list up to 10 events simultaneously.
Page 112 Controls Interface Event Settings Screens This screen lists detailed information of a special event including event active day, event time, and local time of day schedule arbitrated setting and so on. The user can choose any item among them to adjust as requirements. Figure 8.17 Event Settings Screen 1 Figure 8.18 Event Settings Screen 2 RTWS •...
Page 113 Controls Interface Event Disable/Enable Settings Screens The user can set disable or enable of an event in this screen. Figure 8.19 Event Disable/Enable Settings Screen Event Active Days Screens The user chooses which day the event is active or not in this screen. The keys will darken when they are clicked.
Page 114 Controls Interface Event Time Screen The user can set and adjust the specific time of an event in this screen. If set or adjust “Hours”, please click the key “Hours” first and then change value of hour by touching“ ” and “ ”...
Page 115 Controls Interface Event Arbitrated Settings Screen The screen of analog setpoints is slight different from other standard screens because there are two keys “Enabled” and “Disabled”. The user can change value by select the key “Enabled”. The changed value will be accepted after click key “Enter”. If choose the key “Disabled”, its related value is invalid and display will show “------“instead of the specific value.
Page 116: Lockout Screen
Controls Interface Lockout Screen The DynaView Display and Touch Screen Lock screen is shown below. This screen is used if the Display and Touch Screen Lock feature is Enabled. 30 Minutes after the last key stroke this screen will be displayed and the Display and Touch Screen will be locked out until “159enter” is entered.
Page 117: Reports Screen
Controls Interface Reports Screen Following messages are listed in “Report” screen. • Evaporator • Condenser • Compressor • ASHRAE Chiller Log • Historic Diagnostics There is always a key “ ”in the right side of each message column. User will enter related interface and set and adjust some setpoints by touching this key.
Page 118 Controls Interface Table 8.10 Report Content: Circuit Evaporator Description Resolution Units Evap Entering Water Temperature XX.XX ℉ / ℃ Evap Leaving Water Temperature XX.XX ℉ / ℃ Evap Sat Rfgt Temp XX.XX ℉ / ℃ Suction Pressure XXX.XX kPa/psia Evap Approach Temp XX.XX ℉...
Page 119 Controls Interface Table 8.13 Report Content: Chiller Compressor Description Resolution Units Average Line Current %RLA Unit Volts Volts Unit Running Time XX:XX Time Power Demand XX.XX %RLA Phase Voltages Volts Amps L1 L2 L3 X.XX Amps Compressor 1A Starts Enum Compressor Running Time XX:XX Time...
Page 120 Controls Interface Table 8.15 Report Content: Chiller ASHRAE Chiller Log Description Resolution Units Current Time/Date XX:XX XX XX, XXXX Enum Chiller Mode Text Active Chilled Water Setpoint XX.XX ℉ / ℃ Active Hot Water Setpoint XX.XX ℉ / ℃ Evap Entering Water Temperature XX.XX ℉...
Page 121: Power Up And Self Tests
Controls Interface Power Up and Self Tests Power-Up DynaView On Power-Up DynaView will progress through three screens: First Screen, Application Status, Boot Software P/N, Self Test and Application Time Stamp.This screen will display for 3-10 seconds. This screen will give the status of the Application software, the Boot Software P/N, display Self Test results and display the Application Part Number.
Page 122: Diagnostic Screens
Controls Interface If the MP configuration is valid, the messages are displayed as following Figure shown. If it is found to be invalid, “MP: Invalid Configuration” is displayed and remind to download a valid configuration. Figure 8.27 Power Up and Self Tests Process Screen 3 Diagnostic Screens Press the flash key “ALARMS”...
Page 123: Display Formats
Controls Interface Figure 8.28 Diagnostic Screen A complete list and code of diagnostics is included in the Diagnostic section. DISPLAY FORMATS UNITS Temperature settings can be expressed in ℉ or ℃ , depending on Display Units settings. Dashes (“-----”) appearing in a temperature or pressure report, indicates that the value is invalid or not applicable.
Page 124: Techview
Tracer CH530 must use a laptop running the software application “TechView.” TechView is a Trane application developed to minimize chiller downtime and aid the technicians understanding of chiller operation and service requirements.
Page 125: Software Download
Instructions for First Time TechView Users This information can also be found at http://www.trane.com/Commercial/DesignAnalysis/TechView.aspx 1. Create a folder called “CH530” on your C:\ drive. You will select and use this folder in subsequent steps so that downloaded files are easy to locate.
Page 126: Unit View
Controls Interface • Updating main processor software • Monitoring chiller operation • Viewing and resetting chiller diagnostics • Low Level Intelligent Device (LLID) replacement and binding • Main processor replacement and configuration modifications • Setpoint modifications • Service overrides Unit View Unit view is a summary for the system organized by chiller subsystem.
Page 127 Controls Interface the authorization or approval from Trane Company. Table 8.17 Unit View Tabs – Detail System Control Point Name Status Units Chiller 　　　　 Chiller Front Panel Cool/heat Command setting 　 Chiller Front Panel Chilled Water Setpoint...
Page 128 Controls Interface System Control Point Name Status Units Circuit 1 　　　　 Circuit 1 Front Panel Circuit Lockout Setting 　 Circuit 1 External Circuit Lockout Status Status Circuit 1 Evaporator Refrigerant Pressure Status psi gauge Circuit 1 Evaporator Saturated Refrigerant Status deg ℉...
Page 129 Controls Interface System Control Point Name Status Units Override & Lockouts Circuit 1 Restart Inhibit Time-Compressor 1A status Mins:secs 　 Manual Clear Restart Inhibit setting Overrides Manual Evaporator Water Pump Override setting Overrides Chiller Evaporator Water Pump Override Time status Mins:secs Remaining Manual...
Page 130 Controls Interface System Control Point Name Status Units Feature Settings 　　　 Chiller Cooling Low Ambient Lockout setting 　 Chiller Cooling Low Ambient Lockout Temperature setting deg ℉ Chiller Differential to Start setting deg ℉ Chiller Differential to Stop setting deg ℉...
Page 131 Controls Interface System Control Point Name Status Units Gains 　　　　 Chiller Cooling Design Delta setting deg ℉ 　 Temperature(Waterside) Chiller Heating Design Delta setting deg ℉ Temperature(Waterside) Chiller Condenser Pressure Limit Setpoint setting Condenser Head Pressure Control 　...
Page 132 Controls Interface System Control Point Name Status Units Chilled Water Reset 　　　 Chiller Chilled Water Reset Type setting 　 Chiller Return Water Reset Ratio setting Chiller Return Water Start Reset setting deg ℉ Chiller Return Water Maximum Reset setting deg ℉...
Page 133 Controls Interface Figure 8.31 Fields in White To change the setpoint, enter a new value for the setpoint into the text field. Figure 8.32 Change Setpoint If the entered value is outside the given range, the background turns red. Figure 8.33 Change Out of Range If the value entered is not valid, an error message will display and the change will not occur.
Page 134: Diagnostics View
Controls Interface Figure 8.34 Setpoint Change Failed Diagnostics View This window lists the active and inactive (history) diagnostics. There can be up to 60 diagnostics, both active and historic. For example, if there were 5 active diagnostics, the possible number of historic diagnostics would be 55.
Page 135 Controls Interface Figure 8.35 Diagnostic View RTWS • RLC-SVX15D-EN...
Page 136: Configuration View
Controls Interface Configuration View This view displays the active configuration and allows you to make changes to the unit configuration. Figure8.36 Configuration View - CH530 Tab Configuration View allows you to define the chiller's components, ratings, and configuration settings. These are all values that determine the required installed devices, and how the chiller application is running in the main processor.
Page 137 Controls Interface Table 8.18 Configuration View Items – Detail Item Description Model 　　 Model Type (MODL) RTWS RTWS/CH530 Configuration Control Sequence CH530 　　 Chiller DeStarter Factory Assigned Nominal Tons (NTON) Unit Type (UNTY) High Unit Application(UAPP) Standard Condenser Leaving Water Temperature High Temperature Condenser Leaving Water Temperature...
Page 138 Controls Interface Item Description Starter 　　 Compressor 1A Rated Load Amps Range = 1 - 999 Compressor 1A Current Transformer Meter Scale 37.5 Amps 50 Amps 75 Amps 100 Amps 150 Amps 200 Amps 275 Amps 400 Amps 500 Amps 700 Amps 1000 Amps Starter Type (SRTY)
Page 139 Controls Interface Item Description Options 　　 Outdoor Air Temperature (OATS) Not Installed Installed Ice Building Option (ICEB) Not Installed Installed With Hardware Installed Without Hardware ECWS/EHWS and External Current Limit Setpoint 4-20mA, (SETP) 2-10Vdc Motor Current Analog Output (CAOA) Not Installed Installed Programmable Status Relays (STAT)
Page 140 Controls Interface Item Description Options Setup 　 ECWS Minimum Temperature -17.8 to 9.9 ECWS Maximum Temperature 10 to 18.4 EHWS Minimum Temperature 20 - 60 EHWS Maximum Temperature 20 - 60 ECLS Minimum %RLA 60-89 ECLS Maximum %RLA 90-120 RTWS • RLC-SVX15D-EN...
Page 141 Controls Interface Item Description Programmable Status Relay 1 (J2-10,11,12) None Latching Alarm Non-Latching Alarm Alarm Compressor Running Chiller Limit Mode Max Capacity Warning Head Pressure Relief Request Circuit 1 Running Programmable Status Relay 2 (J2-7,8,9) None Latching Alarm Non-Latching Alarm Alarm Compressor Running Chiller Limit Mode...
Page 142 Controls Interface Item Description Programmable Status Relay 4 (J2-1,2,3) None Latching Alarm Non-Latching Alarm Alarm Compressor Running Chiller Limit Mode Max Capacity Warning Head Pressure Relief Request Circuit 1 Running Generic Monitoring 　 Monitoring Temperature Sensors 0 - 8 Monitoring Pressure Transducers 0 - 8 Monitoring Dual Current Loop Input Modules 0 - 4...
Page 143 Controls Interface Figure 8.37 Configuration View - Options Tab RTWS • RLC-SVX15D-EN...
Page 144 Controls Interface Figure 8.38 Configuration View - Options Setup Tab RTWS • RLC-SVX15D-EN...
Page 145: Software View
Controls Interface Software View Software view allows you to verify the version of chiller software currently running on the DynaView and download a new version of chiller software to the DynaView. You can also add up to two available languages to load into the DynaView. Loading an alternate language file allows the DynaView to display its text in the selected alternate language, English will always be available.
Page 146: Binding View
Controls Interface Binding View Binding View allows you to assess the status of the network and all the devices connected as a whole, or the status of individual devices by using status icons and function buttons. Binding View is essentially a table depicting what devices and options are actually discovered on the network bus (and their communication status) versus what is required to support the configuration defined by the feature codes and categories.
Page 147 Controls Interface Replacing or Adding Devices If a device is communicating but incorrectly configured, it might not be necessary to replace it. If the problem with the device is related to communication, attempt to rebind it, and if the device becomes correctly configured, it will then communicate properly.
Page 148: Pre-Start Checkout
Model Number Pre-Start Checkout When installation is complete, but prior to putting the unit into service, the following prestart procedures must be reviewed and verified correct: WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized.
Page 149: Unit Voltage Power Supply
Pre-Start Checkout specialist be engaged to determine what water treatment, if any, is required. Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water or saline or brackish water. • Close the fused-disconnect switch(es) that supplies power to the chilled water pump starter and the condenser water pump starter.
Page 150: Unit Voltage Imbalance
Pre-Start Checkout CAUTION Equipment Damage! Inadequate voltage to the unit may cause control components to malfunction and shorten the life of relay contact, compressor motors and contactors. Unit Voltage Imbalance Excessive voltage imbalance between the phases of a three-phase system can cause motors to overheat and eventually fail.
Page 151: Unit Voltage Phasing
Pre-Start Checkout Unit Voltage Phasing It is important that proper rotation of the compressors be established before the unit is started. Proper motor rotation requires confirmation of the electrical phase sequence of the power supply. The motor is internally connected for clockwise rotation by viewing from compressor discharge end with the incoming power supply phased A, B, C.
Page 152: Water System Flow Rates
Pre-Start Checkout CAUTION Equipment Damage! Do not interchange any load leads that are from the unit contactors or the motor terminals. 7. Reopen the unit disconnect and disconnect the phase indicator. WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized.
Page 153: Unit Start-Up Procedures
Unit Start-Up Procedures Unit Start-Up Procedures Sequence of Operation Power Up The Power up chart（Figure10.1）shows the respective DynaView 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 mode will always transition through the 'Stopped' Software state independent of the last mode.
Page 154 Unit Start-Up Procedures Figure10.2 Power Up to Starting RTWS • RLC-SVX15D-EN...
Page 155: Stopped To Starting
Do not add refrigerant, as this may result in overcharging the circuit. Use only refrigerants specified on the unit nameplate (HFC 134a) and Trane OIL00048. Failure to do so may cause compressor damage and improper unit operation.
Page 156 Unit Start-Up Procedures Figure10.3 Stopped to Starting RTWS • RLC-SVX15D-EN...
Page 157: Start-Up
NOTICE Any change of the protection setpoints might result the loss of related guarantee rights without the authorization or approval from Trane Company. NOTICE Minimum LERTC (Low Evaporator Refrigerant Temperature Cutout) and minimum LWTC (Leaving Water Temperature Cutout) of evaporator should be set according to Appendix 1, when the brine solution is used in low temperature applications.
Page 158: Seasonal Unit Start-Up Procedure
Unit Start-Up Procedures atmospheric pressure is 101.35kPa(14.6960 psia)). 8. Check the EXV sight glasses after sufficient time has elapsed to stabilize the chiller. The refrigerant flow past the sight glasses should be clear. Bubbles in the refrigerant indicate either low refrigerant charge or excessive pressure drop in the liquid line or a stuck open expansion valve.
Page 159: Limit Conditions
Unit Start-Up Procedures Limit Conditions CH530 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 Table10.1. Table10.1 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.
Page 160 Unit Start-Up Procedures Table10.2 Start-up Log RTWS Start-up Test Log Job Name Job Location Model # Serial # start date: Sales Order # ship date: Job elevation (m. above sea level) STARTER DATA: START-UP ONLY Manufacturer： Chiller appearance at arrival: Type: (x-line, wye-delta) Machine Gauge Pressure: psig/ kPa...
Page 161: Unit Shutdown
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. Figure11.1 Normal Shutdown RTWS •...
Page 162: Seasonal Unit Shutdown
Unit 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 heaters. 2.
Page 163: Maintenance And Service
Maintenance and Service Overview This section describes preventative maintenance procedures and intervals for the RTWS unit. Use a periodic maintenance program to ensure optimal performance and efficiency of the Series R units. An important aspect of the chiller maintenance program is the regular completion of the “Series R Operating Log”;...
Page 164: Monthly Maintenance And Checks
Maintenance and Service the CH530. Pressure readings should fall within the specified ranges listed under Operating Conditions. Note: Optimum condenser pressure is dependent on condenser water temperature, and should ℃ ℉ equal the saturation pressure of the refrigerant at a temperature 1 to 3 ( 2 to 5 ) above that of leaving condenser water at full load.
Page 165: Annual Maintenance
Maintenance and Service Annual Maintenance Shut down the chiller once each year to check the following: WARNING 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.
Page 166: Operating Log
Maintenance and Service Operating Log A sample of several operating logs and checklists has been included Chiller Log Run Time Main Tab 15 min 30 min 1 hr Chiller Mode Evap Ent/Lvg Water Temp( ℃ ) Cond Ent/Lvg Water Temp( ℃ ) Active Chilled Water Setpoint ( ℃...
Page 167 Maintenance and Service Compressor Compressor Starts Compressor Run Time System Rfgt Diff Pressure (kPa abs.) Oil Pressure (kPa gauge) Compressor rfgt Discharge Temp ( ℃ ) Discharge Superheat ( ℃ ) % RLA L1 L2 L3 (%) Amps L1 L2 L3 (Amps) Volts AB BC CA Settings Settings Tab...
Page 168 Language Selection NOTICE *Any change of the protection setpoints might result the loss of related guarantee rights without the authorization or approval from Trane Company. NOTICE *Minimum LERTC (Low Evaporator Refrigerant Temperature Cutout) and minimum LWTC (Leaving Water Temperature Cutout) of evaporator should be set according to Appendix 1, when the brine solution is used in low temperature applications.
Page 169: Service Procedures
It is recommended that the services of a qualified 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, saline or brackish water.
Page 170 Review mechanical room limitations and determine the safest method or methods of rigging and lifting the waterboxes. 1. Determine the size of chiller being serviced. Refer to Trane Nameplate located on chiller control panel. 2. Select the proper lift connection device from Table12.4. The rated lifting capacity of the selected lift connection device must meet or exceed the published weight of the waterbox.
Page 171 Maintenance and Service WARNING 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. 9.
Page 172: Chemical Cleaning Procedure
To prevent oil sump heater burnout, open the unit main power disconnect switch before removing oil from the compressor. Trane Polyolester Oil is the approved oil for the RTWS units. Polyolester oil is extremely hygroscopic meaning it readily attracts moisture. The oil can not be stored in plastic containers due to the hygroscopic properties.
Page 173 Maintenance and Service Oil Sump Level Check Running the chiller at minimum load is the best for the quickest return of oil to the separator and sump. The machine still needs to sit for approximately 30 minutes before the level is taken. At minimum load, the discharge superheat should be highest.
Page 174 Maintenance and Service Figure12.2 Determining Oil Level in Sump 3. Attach a 3/8” or 1/2” hose with a sightglass in the middle to the oil sump service valve (1/4” flare) and the oil separator service valve (1/4” flare). Note: Using high pressure rated clear hose with appropriate fittings can help speed up the process.
Page 175 Maintenance and Service Note: If the oil is logged in the evaporator confirm the operation of the gas pump. If the gas pump is not functioning properly, all oil will be logged in the evaporator. 7. After the level is determined, close the service valves and remove the hose/sightglass assembly.
Page 176 Maintenance and Service To properly charge the system with oil, follow the steps below: 1. Locate the 1/4” schrader valve on the end of the compressor. 2. Loosely connect oil pump to schrader valve called out in step 1. 3. Operate oil charging pump until oil appears at the charging valve connection; then tighten the connection.
Page 177: Refrigerant Charge
Maintenance and Service Figure12.4 Recommended Oil Filter Replacement Refrigerant Charge If a low refrigerant charge is suspected, first determine the cause of lost refrigerant. Once the problem is repaired follow the procedures below for evacuating and charging the unit. Evacuation and Dehydration 1.
Page 178 Maintenance and Service Refrigerant and Oil Charge Management Proper oil and refrigerant charge is essential for proper unit operation, unit performance, and environmental protection. Only trained and licensed service personnel should service the chiller. Some symptoms of a refrigerant under-charged unit: •...
Page 179: Freeze Protection
6. Remove bolts that retain filter flange. 7. Remove old filter element. 8. Inspect replacement filter element and lubricate o-ring with Trane OIL00048. NOTE: Do not use mineral oil. It will contaminate the system. 9. Install new filter element in filter housing.
Page 180: Diagnostics
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 is affected by the diagnostic (the same one as the source), but in special cases functions are modified or disabled by the diagnostic.
Page 181: Starter Diagnostics
Diagnostics Starter Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name and Target [Inactive Modes] Level Source Starter Did Not *Circuit Immediate Latch On the first check The Starter Module did not recei ve a Local Transition - after transition. transition complete signal in the designated Compressor 1A time from its command to transition.
Page 182 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name and Target [Inactive Modes] Level Source Power Loss - *Circuit Immediate NonLatch All compressor The compressor had previously established Remote Compressor 1A running modes currents while running and then all three [all compressor phases of current were lost.
Page 183 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name and Target [Inactive Modes] Level Source Starter Fault *Circuit Immediate Latch Starting -All types a. This is a specific starter test where the Local Type II – of starters Shorting Contactor (1K3) is individually Compressor 1A energized and a check is made to ensure that there are no currents detected by the...
Page 184 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name and Target [Inactive Modes] Level Source Motor Current Circuit Immediate Latch Cprsr Energized Compressor current exceeded overload time Local Overload - vs. trip characteristic. Must trip = 140% RLA, Compressor 1A Must hold=125%, nominal trip 132.5% in 30 seconds Starter...
Page 185: Main Processor Diagnostics
Diagnostics Main Processor Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level MP: Reset Has None Info NonLatch The main processor has successfully come Remote Occurred out of a reset and built its application. A reset may have been due to a power up, installing new software or configuration.
Page 186 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level Low Oil Flow - Circuit Immediate Latch Cprsr Energized The intermediate oil pressure transducer Local Compressor 1A and Delta P for this compressor was indicating an above 53 kPa (7.7 unacceptable oil pressure drop as a % psid)
Page 187 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level High Circuit Normal Latch Cprsr Energized High Vi Cprsr: The differential pressure for Remote Differential the respective circuit was above 275 Psid Refrigerant (1890 kPa) for 2 consecutive samples or Pressure - more than 10 seconds.
Page 188 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level BAS Failed None Special NonLatch At power-up The BAS was setup as "installed" and the Remote to Establish Action BAS did not communicate with the Lontalk Communication LCIC within 15 minutes after chiller controls power-up.
Page 189 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level External None Info Latch a. Not "Enabled": no diagnostics. Remote Current Limit b. "Enabled ": Out-Of-Range Low or Hi Setpoint or bad LLID, set diagnostic, default CLS to next level of priority (e.g.
Page 190 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level Condenser Circuit Immediate Latch Bad Sensor or LLID Remote Refrigerant Pressure Transducer - Circuit 1 Suction Circuit Immediate Latch Bad Sensor or LLID Remote Refrigerant Pressure Transducer –...
Page 191 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level Very Low Chiller Immediate Latch T h e r e s p e c t i v e c i r c u i t ’ s e v a p o r a t o r Local Evaporator [compressor or...
Page 192 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level Low Evaporator Evap (and Special NonLatch Unit in Stop The respective evap sat temp fell below the Remote Temp – Ckt 1: circ) Pump Action Mode, or in water temp cutout setting while the evap Unit Off Auto Mode...
Page 193 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level Evaporator Chiller Immediate NonLatch [All Stop modes] a. The Evaporator water flow switch input Remote Water Flow was open for more than 6 contiguous Lost seconds (or 15 seconds for thermal dispersion type flow switch).
Page 194 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level High Chiller Info and NonLatch Only effective if The leaving water temperature exceeded Remote Evaporator Special either the high evap water temp limit (TechView Water Action 1) Evap Wtr Flow service menu settable –default 105F) for 15 Temperature...
Page 195 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level Condenser Chiller Immediate NonLatch Start and All Run The condenser water flow proof input was Remote Water Flow Modes open for more than 6 contiguous seconds Lost (or 15 seconds for thermal dispersion type flow switch) after flow had been proven.
Page 196 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level Outdoor Air Chiller Special Latch B a d Se n s o r o r L L I D . I f t h e o u t d o o r Remote Temperature Action...
Page 197 Diagnostics Diagnostic Affects Severity Persistence Active Modes Criteria Reset Name Target [Inactive Modes] Level MP: Non- None Info Latch MP has determined there was an error in Remote Volatile a sector of the Non-Volatile memory and it Memory was reformatted. Check settings. Reformat Check Clock Chiller...
Page 198 The presence of this software error message suggests an internal software problem has been detected. The events that led up to this failure, if known, should be recorded and transmitted to Trane Controls Engineering. Software Error All functions Immediate...
Page 199 Trane Controls Engineering. NOTICE **Any change of the protection setpoints might result the loss of related guarantee rights without the authorization or approval from Trane Company. NOTICE **Minimum LERTC (Low Evaporator Refrigerant Temperature Cutout) and minimum LWTC (Leaving Water Temperature Cutout) of evaporator should be set according to Appendix 1, when the brine solution is used in low temperature applications.
Page 200: Communication Diagnostics
Diagnostics Communication Diagnostics Notes: 1. The following communication loss diagnostics will not occur unless that input or output is required to be present by the particular configuration and installed options for the chiller. 2. Communication diagnostics (with the exception of “Excessive Loss of Comm”) are named by the Functional Name of the input or output that is no longer being heard from by the Main Processor.
Page 201 Diagnostics Diagnostic Name Affects Severity Persistence Active Modes Criteria Reset Target [Inactive Modes] Level Comm Loss: Special Latch Continual loss of communication between the Remote External Ice Making Action MP and the Functional ID has occurred for a 30 Building Mode second period.
Page 202 Diagnostics Diagnostic Name Affects Severity Persistence Active Modes Criteria Reset Target [Inactive Modes] Level Comm Loss: Chiller Info and Latch Continual loss of communication between the Remote Condenser Special MP and the Functional ID has occurred for a 30 Entering Water Action second period.
Page 203 Diagnostics Diagnostic Name Affects Severity Persistence Active Modes Criteria Reset Target [Inactive Modes] Level Comm Loss: Oil Circuit Normal Latch Continual loss of communication between the Remote Return Gas Pump MP and the Functional ID has occurred for a 30 Drain –...
Page 204 Diagnostics Diagnostic Name Affects Severity Persistence Active Modes Criteria Reset Target [Inactive Modes] Level Comm Loss: None Info Latch Continual loss of communication between the Remote Op Status MP and the Functional ID has occurred for a 30 Programmable second period. Relays Comm Loss: None...
Page 205: Main Processor Boot Messages And Diagnostics
Diagnostics Main Processor Boot Messages and Diagnostics Description DynaView Display Message Troubleshooting Boot Software Part The “boot code” is the portion of the code that is resident in all MPs regardless Numbers: of what application code (if any) is loaded. Its main function is to run power up LS Flash -->...
Page 206 Diagnostics Description DynaView Display Message Troubleshooting App Present. Running An application has been detected in Main Processor’s nonvolatile memory and the Selftest… boot code is proceeding to run a check on its entirety. A few seconds later, the boot Err3: CRC Failure code had completed but failed the (CRC) test.
Page 207 “Err3”will be displayed instead of this, during the programming download process. Software Error 1001: Call See item in Main Processor Diagnostics table above Trane Service Software Error 1002: Call See item in Main Processor Diagnostics table above Trane Service...
Page 208 Diagnostics RTWS • RLC-SVX15D-EN...
Page 209: Wiring Schematics
Wiring Schematics Typical field connection diagrams, electrical schematics for the RTWS units are shown in this section. Note: The drawings in this section are provided for reference only. These diagrams may not reflect the actual wiring of your unit. For specific electrical connection and schematic information, always refer to the wiring diagrams that were shipped with the unit.
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Page 230: Appendix 1. Brine Solutions Set Points
Appendix 1. Brine Solutions Set Points Note: Freeze points in following tables are recommended by Trane based on public published data, should ask the brine solutions vendor to provide the freeze points data, and adjust LERTC and LWTC set points in tables.
Page 231: Pg (Propylene Glycol) Solution
Appendix 1.Brine Solutions Set Points PG (Propylene Glycol) Solution LEWT: Propylene Solution Minimum Minimum Minimum operational evaporator Glycol Freeze Recommended Recommended leaving fluid temperature set Percentage (%) Point ( ℉ ) LRTC ( ℉ ) LWTC ( ℉ ) point based on LWTC ( ℉ ) 28.6 35.0 38.0...
Page 232: Cacl2 (Calcium Chloride) Solution
Appendix 1.Brine Solutions Set Points CaCL2 (Calcium Chloride) Solution LEWT: Solution Minimum Minimum CaCL2 weight Minimum operational evaporator Freeze Recommended Recommended Percentage (%) leaving fluid temperature set Point ( ℉ ) LERTC ( ℉ ) LWTC ( ℉ ) point based on LWTC 31.9 28.5 34.9...
Page 233 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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