Trane Comprehensive Guide to Chiller Compressor Oil Change and Maintenance for CVHE Models
Page 91

Oil Maintenance

Compressor Oil Change on

CVHE, CVHF, CVHG

Recommendations are to subscribe to an annual oil analysis program rather than automatically change the oil as part of scheduled maintenance. Change the oil only if indicated by the oil analysis. Use of an oil analysis program will reduce the chillers overall lifetime waste oil generation and minimize refrigerant emissions. The oil analysis should be performed by a qualified laboratory that is experienced in refrigerant and oil chemistry and in the servicing of Trane centrifugal chillers.

In conjunction with other diagnostics performed by a qualified service technician, oil analyses can provide valuable information on the performance of the chiller to help minimize operating and maintenance

costs and maximize it’s operating life. A drain fitting is installed in the oil filter top, after the oil filter, for obtaining oil samples.

Note: Use only Trane OIL00022. A full oil change is 9 gallons of OIL00022.

Oil Change Procedure

When oil analysis indicates the need to change compressor oil, use the following procedure for removing oil.

CAUTION

Heater Damage!

The oil sump heater must be deenergized before draining the sump. Failure to do so could possibly burn out the oil sump heater.

[ ] Draw the oil from the chiller through the oil charging valve on the chiller oil sump into an approved, evacuated tank; or,

[ ] Pump the oil from the chiller through the oil charging valve into an airtight resealable container, using a magnetically-driven auxiliary pump.

Forcing the oil from the oil sump by pressurizing the chiller (by raising chiller temperature or adding nitrogen) is not recommended.

Refrigerant dissolved in the oil can be removed and returned to the chiller by using an appropriate deep- vacuum recovery unit and heating and agitating the oil container. Follow all Federal, State and Local regulations with regard to disposal of waste oil.

CVHE-SVU01E-EN

91

Page 90 Page 92
Image 91
Page 90 Page 92
Contents Operation Maintenance Read these carefully Contents Unit Nameplate General InformationLiterature change About this manualC0000000K01G14C10W1A03B1 CVHF091NAL00ACU2758W7E8TBControl Optional Packages Commonly Used AcronymsCvhf OverviewGeneral Information General Information Cvhf Compressor Cooling CycleCVHE, Cvhg pressure enthalpy curve Cvhf pressure enthalpy curve DynaView Human Interface TechView Chiller Service ToolCVHE, CVHF, and Cvhg sequence of operation running General Information Oil and Refrigeration Pump Surface TemperaturesOil refrigerant pump 20 100 percent RLA Base Loading Control AlgorithmGeneral Information Ice Machine Control Free Cooling Cycle Free Cooling Frcl Hot Gas Bypass Hot Water control Auxiliary Condensers Heat Recovery CycleControl Panel Devices and Unit Mounted Devices Unit Control Panel UCPUnit Control Panel UCP User-defined language support Variable water flow through the evaporatorDynaView main processor Operator InterfaceOperator Interface How It Works Chiller Stop Prevention/Inhibit FeatureTop Level Mode Description Minsec System ResetReference Main Screen Diagnostic Screen Back button provides navigation back to the chiller screen Operator Interface Condenser Report Items Units Reports Evaporator Report items UnitsPurge Report Items Units Compressor Report Items UnitsMotor Report Items Units RPMPPM Historic Diagnostics LogAshrae Chiller Log Units RLAChilled Water Setpoint Chiller Feature SettingsMode Overrides Description Units Default Monitor ValueDisplay Settings Description Units DefaultPurge Operator Interface Operator Interface Operator Interface Operator Interface Operator Interface Binding Interprocessor CommunicationInter Processor Communications IPC3 IPC3 Definitions Bus ManagementControl System Components Control panel components layout and approximate dimensionsControl System Components Control Panel Devices Opst Machine Shutdown Manual Reset MMRHead Relief Request Output Compressor Running RelayExop Refrigerant Monitor Input 1A17Cdrp Condenser Refrigerant Pressure Output Frcl Free Cooling OptionHgbp Hot Gas Bypass Option Trmm TRM4 Tracer Comm 4 interfaceCondenser Pressure Output Temperature basedPressure based Refrigerant Differential Pressure Indication Output Gbas Gbas Generic Building Automation SystemPercent RLA Output Wpsr WFC Water Pressure Sensing Option Module CharacteristicsExternal Chilled Water Setpoint Ecws External Current Limit SetpointComm + 1A8, 1A9, 1A11, 1A12 Quad Relay Output Status1A13, 1A18, 1A19, 1A20 Dual Binary input module 1A14 Communication interface Module1A15, 1A16, 1A17, 1A21 Dual Analog Input/output Module Recommended Length to Run external Output signalsAnalog Input Unit mounted devices Electrical Sequence Control Sequence of OperationUCP and Wye-Delta Starter Control Circuits Delay time 200 msec. Opens 2K1 Control Sequence of Operation Test and start timing sequence AFD Machine Protection Adaptive Control Momentary Power Loss MPL ProtectionOverload trip time versus percent RLA Current Overload ProtectionCurrent Limit Protection Phase Loss ProtectionReverse Rotation Protection SoftLoading Differential to Start or StopMinimum and Maximum Capacity Limit Evaporator Limit Leaving Water Temperature CutoutMain Processor Software Revision 6.0 and higher Low Refrigerant Temperature CutoutCutout strategy Condenser Limit Evaporator Variable Flow CompensationClear Restart Inhibit Restart Inhibit Start to Start Time SettingRestart Inhibit Restart Inhibit Free StartsHigh Vacuum Lockout Oil Temperature Control Return Water Controls Chilled Water Reset CWROutdoor Air Temperature Maximum ResetEquation Values for start reset typesDegrees of Reset Constant ReturnOutdoor air temperature versus degrees of reset Reset RatioReset function for return CWR Reset Ratio = 50% Return CWR Unit Startup Unit Start-Up ProceduresDaily Unit Start-Up Seasonal Unit Start-Up Before changeover to heating modeLive Electrical Components Toxic HazardsSeasonal Unit Shutdown Unit Shutdown ProceduresUnit Shutdown Oil Pump Heater OperationRecord Keeping Forms Periodic MaintenanceDaily Maintenance and Checks Moisture ContaminationEvery 3 Months Weekly MaintenanceNormal Chiller Operating Characteristics Hazardous Voltage w/ CapacitorsAnnual Maintenance Off-Season MaintenanceCompressor Oil Change on Oil MaintenanceOil Change Procedure Heater DamageReplacing Oil Filter Oil Filter ReplacementLubrication MaintenanceOil Supply System Problems Other Maintenance RequirementsFront View with Refrigerant Pump Do not Leave Grease Fittings InstalledRefrigerant Charge Contains RefrigerantProper Water Treatment Recovery and Recycle ConnectionsLeak Testing Cleaning the CondenserControl Settings Adjustments Cleaning the EvaporatorUnit Corrosion Damage Unit Preparation Purge SystemHazardous Voltage w/ Capacitors 100 101 102 103 104 105 106 107 108 109 110 111 Trane

CVHE-SVU01E-ENX39640712050 specifications

The Trane CVHE-SVU01E-ENX39640712050 is a high-efficiency centrifugal chiller designed for commercial and industrial applications. This state-of-the-art unit is engineered to provide reliable cooling performance, energy efficiency, and optimized operational flexibility. It is particularly suitable for large-scale facilities that require significant cooling capacity and robust performance under varying load conditions.

One of the most notable features of the CVHE-SVU01E series is its advanced variable speed drive technology. This technology enables the chiller to adjust its speed according to the cooling demands of the facility, resulting in substantial energy savings. By operating at optimal speeds, this unit reduces power consumption and enhances overall efficiency. This is noteworthy in the context of rising energy costs and increasing sustainability demands across various industries.

Moreover, the CVHE-SVU01E is equipped with Trane’s proprietary Compliant Scroll compressor technology. This innovative compressor design minimizes mechanical losses and increases the efficiency of the chiller system. Additionally, the compressor is specifically designed to handle varying refrigerant flow rates, allowing the chiller to maintain performance even when faced with fluctuating conditions.

Another significant characteristic of this chiller model is its use of environmentally friendly refrigerants, aligning with global regulations aimed at reducing greenhouse gas emissions. This commitment to sustainability ensures that the CVHE-SVU01E not only provides excellent cooling performance but also adheres to contemporary environmental standards.

The unit utilizes an advanced control system that simplifies operation and enhances troubleshooting capabilities. The intuitive interface allows facility managers to monitor performance metrics, optimize operation schedules, and conduct remote diagnostics, significantly reducing costly downtime and maintenance efforts.

Furthermore, the compact and modular design of the CVHE-SVU01E makes it easy to install in various settings. Its durability is ensured through the use of high-quality materials and components, designed to withstand the rigors of demanding environments. With reduced maintenance requirements, facility operators can focus on core business functions without frequent interruptions.

In summary, the Trane CVHE-SVU01E-ENX39640712050 combines cutting-edge technologies and features to deliver exceptional performance, efficiency, and reliability in commercial cooling applications. Its advanced design contributes to reduced energy costs, minimal environmental impact, and greater operational flexibility, making it an excellent choice for organizations seeking sustainable and efficient cooling solutions.
Top Page Image Contents