Installation Operation Maintenance RTWB Helical …

1 RTWB Helical -RotaryChillers200 to 700 kWSizes 207-224 RTWB-SVN01B-E4 InstallationOperationMaintenancePersonal protectionSafety glasses with sideshields before enteringconstruction sites ormanufacturing and gloves whenhandling chemicals; whenwelding, cutting, brazing hat wherever there ispotential danger fromfalling or flying before touching anypart of the machine that isoperating or one that hasrecently been that metal is of damage to for safety or vesselDo not attempt to removefittings and covers or breaklines while the machine isunder pressure or while it not weld or flamecut any vesselor line until all refrigerant has not use oxygen to purge lines,leak test, or pressurize a not pressure test any vessel at itsdesign pressure (found on theequipment nameplate). Testing at thepressures must be done in a specialenclosure or be using hydraulic,refer to national regulation.

2 RTWB-SVN01B-E4 ImportantNotice American Standard Inc. 2001 Refrigerant emissioncontrolIn respect of the environment allservice Operation must use recoverysystems to minimize losses ofrefrigerant to the atmosphere whenservicing units with check and inspect all reliefdevices in accordance with refrigerantHeavy concentration of refrigerantwithin a confined area can displaceenough oxygen to cause not weld or flamecut in anatmosphere containing refrigerantvapor until the area has been breathing refrigerant voltageDisconnect and lockout or tagout allelectrical power, includingremote disconnects assume no liability forinstallation or service proceduresperformed by unqualified on safety, construction,and environment vary from onecountry to another. Make sure thatthe equipment complies with addition to this publication, readcarefully Soci t Trane s and/or theSeller s General Terms andConditions of Sale and any specificinstruction which you may InformationLiterature change historyUnit inspectionInspection checklistLoose parts inventoryUnit descriptionInstallation overviewInstallation MechanicalStorageLocation requirementsAccess restrictionsMoving and riggingLifting procedureIsolation padsShipping itemsUnit levelingWater pipingWater pressure-drop dataWater treatmentWater pressure gauges and thermometersWater pressure-relief valvesFlow sensing devicesRefrigerant pressure-relief valve ventingThermal insulationInstallation ElectricalGeneral recommendationsPower supply wiringCompressor-motor phase sequencingModule and control panel connectorsInterconnecting wiring (field wiring required)

3 Operating Principles MechanicalGeneralUnit Start-Up ProcedureDaily unit start-up procedureSeasonal unit start-up procedureUnit Shutdown ProcedureDaily unit shutdown procedureSeasonal unit shutdown procedurePeriodic MaintenanceOverviewWeekly Maintenance and checksMaintenance Contract and Training293233 RTWB-SVN01B-E44 GeneralInformationLiterature change historyThis manual describes theinstallation, Operation , andmaintenance of RTWB the unit arrives, compare allnameplate data with ordering,submittal, and shipping typical nameplate is shown inFigure 1 Typical unit name plateAn Owner Guide on the operationof the UCM-CLD chiller controls isavailable as a separate inspectionWhen the unit is delivered, verifythat it is the correct unit and that it isproperly all interior components forvisible damage. Report any apparentdamage or material shortage to thecarrier and make a unit damage notation on the carrier's deliveryreceipt.

4 Specify the extent and typeof damage found and notify theappropriate Trane sales not proceed with the installationof a damaged unit without salesoffice checklistTo protect against loss due todamage incurred in transit, completethe checklist upon receipt of the unit. Inspect the individual pieces of theshipment before accepting theunit. Check for obvious damage tothe unit or packing material. Inspect the unit for concealeddamage as soon as possible afterdelivery and before it is stored. Concealed damage must bereported within 72 hours afterreceipt and confirmed byregistered delivery to the carrierand the Trane sales office. If concealed damage is discovered,stop unpacking the shipment. Donot remove the damaged materialfrom the receiving location. Takephotos of the damage, if owner must providereasonable evidence that thedamage did not occur afterdelivery. Notify the Trane salesrepresentative and arrange forrepair.

5 Do not repair the unit,however, until damage isinspected by the parts inventoryCheck all items against the shippinglist. Water flow switch (option),water-vessel drain plugs, isolationpads, rigging and electricaldiagrams, and service literature areshipped in the starter descriptionThe RTWB units are Helical -rotarytype, water-cooled, liquid chillersdesigned for indoor Installation . Theunits have two independentrefrigerant circuits, with onecompressor per circuit. Each RTWB unit is completelyassembled, wired, leak-tested,dehydrated, charged, and tested forproper control Operation prior toshipment. The chilled-water inlet andoutlet openings are covered RTWB series features Trane'sexclusive Adaptive Control logicwith Clear Language Display. Itmonitors the control variables thatgovern the Operation of the Control logic can correctthese variables, when necessary, tooptimize operational efficiencies,avoid chiller shutdown, and keepproducing chilled water.

6 Compressor unloaders are oilpressure operated. Each refrigerantcircuit is provided with filter,electronic expansion valve, andcharging valves. Figure 2 - Component location for typical RTWB unitFigure 3 Component location for typical RTWB unit (back view)1 Starter panel2 Control panel3 Evaporator4 Oil separator5 Helical - rotary Compressor7 Condenser-water outlet8 Condenser-water inlet3 Evaporator5 Helical - rotary Compressor6 Condenser9 Evaporator-water outlet10 Evaporator-water inlet11 Electronic expansion valve12 Filter dryerGeneralInformation12344578556310121 19 RTWB-SVN01B-E47 GeneralInformationInstallation overviewFor convenience, Table 1summarizes responsibilities that aretypically associated with the RTWB chiller Installation process. Locate and maintain the looseparts, for example, isolators, bulbwells, temperature sensors, flowsensors, or other factory-ordered,field-installed options, forinstallation, as required.

7 Install the unit on a foundationwith flat support surfaces, levelwithin 6 mm and of sufficientstrength to support concentratedweight. Place the manufacturer-supplied isolation pad assembliesunder the unit. Install the unit per the instructionsoutlined in the mechanicalinstallation section. Complete allwater piping and :Field piping must be arrangedand supported to avoid stress onthe equipment. It is stronglyrecommended that the pipingcontractor provide at least 1 m ofclearance between the pre- Installation piping and the plannedlocation of the unit. This will allowfor proper fit-up upon arrival of theunit at the Installation site. Allnecessary piping adjustments canbe made at that time. Where specified, supply and installvalves in the water piping upstreamand downstream of the evaporatorand condenser water boxes toisolate the shells for maintenanceand to balance and trim the system.

8 Supply and install flow switches orequivalent devices in both thechilled-water and condenser-waterpiping. Interlock each switch withthe proper pump starter and UCP2to ensure that the unit can onlyoperate when water flow isestablished. Supply and install taps forthermometers and pressuregauges in the water piping,adjacent to the inlet and outletconnections of both theevaporator and the condenser. Supply and install drain valves oneach water box. Supply and install vents cocks oneach water box. Where specified, supply and installstrainers ahead of all pumps andautomatic modulating valves. Supply and install refrigerantpressure-relief piping from thepressure relief to the atmosphere. Start the unit under supervision ofa qualified service technician. Where specified, supply andinsulate the evaporator and anyother portion of the unit, asrequired, to prevent sweatingunder normal operatingconditions.

9 For unit-mounted starters, cutoutsare provided at the top of thepanel for line-side wiring. Supply and install the wireterminal lugs to the starter. Supply and install field wiring tothe line-side lugs of the 1 Installation overviewRefer to the Installation mechanical and electrical sections of this manual for detailed Installation suppliedTrane suppliedField suppliedTrane installedField installedField installedRiggingSafety chainsClevis connectorsLifting beamIsolationIsolation padsIsolation padsElectricalDisconnect switch (optional)Disconnect switch Flow switches (may be field supplied)BAS wiring (optional)Water pump contactorWater pipingFlow switches (may be field supplied)ThermometersWater flow pressure gaugesIsolation and balancing valves water pipingVents and drain valvesPressure relief valves Pressure reliefRelief valvesVent lineInsulationInsulation (optional)

10 InsulationTable 2 - General data207208210211212214216217218220222224 Evaporator typeEG 120EG 120EG 140EG 170EG 170EG 200EG 200EG 200EG 250EG 250EG 340EG 340 Condenser typeCG 120CG 120CG140CG 170CG 170CG 200CG 200CG 200CG 230 CG 230CG 230 CG 230 Compressor typeK1/K1K2/K2L1/L1L2/L1L2/L2M1/M1M2/M1M 2/M2N1/M2N1/N1N2/N1N2/N2 Oil charge (l)6/66/67/77/77/78/88/88/88/88/811/811/ 11 Oil typeOIL 023 E or OIL 048 ERefrigerant charge (kg)39/3939/3960/6060/6060/6060/6060/606 0/6069/6969/6974/7474/74 Operating weight (kg)262026203370345034503725372537254325 450049255000 Shipping weight (kg)245024503050315031503500350035003900 405042504400 Length (mm)288028804150415041504150415041504150 415041504150 Width (mm) (1)890890890890890890890890890890890890 Height (mm) (1)1789178918321832183218321832183219321 93220412041(1) With compressor sound enclosure and disconnect switch handle not MechanicalFigure 4: Minimum service clearance1 Minimum clearance for Minimum clearance for tube removal of the evaporator or condenser (ateither end of the unit).