Installation, Operation, And Maintenance - Trane Hong Kong

Model Number DescriptionYSC060E3RLA**12345678910111213Digit 1—Unit TypeT DX coolingY DX cooling, gas heatW Packaged heat pumpDigit 2—EfficiencySStandard EfficiencyDigit 16—Hinged ServiceAccess/Filters0ABCDigit 3—AirflowCConvertibleDigit 4,5,6—Nominal GrossCooling Capacity (MBh)0600720901021205 ton (17.6 kW)6 ton (21.1 kW)7½ ton (26.4 kW)8½ ton (29.9 kW)10 ton (35.1 kW)Digit 7—Major Design SequenceEReliaTel microprocessorEuropeanDigit 10—Heating Capacity0LHNo electric heat7Low heat8High heat8Digit 11—Minor DesignSequenceAFirst sequenceDigit 12,13—Service Sequence** Factory assignedDigit 14—Fresh Air Selection0ABCDEFGHNo Fresh airManual outside air damper 0–50%1Motorized Outside air damper 0–50%Economizer, dry bulb 0–100%without barometric relief4Economizer, dry bulb 0–100% withbarometric relief4Economizer, reference enthalpy0-100% without barometric relief3,4Economizer, reference enthalpy0-100% with barometric relief3,4Economizer, comparative enthalpy0–100% without barometric relief3,4Economizer, comparative enthalpy0–100% with barometric relief3,4Digit 15—Supply Fan/Drive Type/Motor01012345380-415/50/3Digit 9—Unit ControlsRKDigit 17—Condenser CoilProtectionR-410A refrigerantDigit 8—Voltage SelectionDDEStandard drive3Oversized motorStandard coilStandard coil with hail guardBlack epoxy pre-coated condensercoilBlack epoxy pre-coatedCondenser coil with hail guardCompleteCoat condenser coil9CompleteCoat condenser coil withhail guard9Digit 18—Through the BaseProvisions0No through-the-base provisionsABCDEFGHClogged filter switch, fan failureswitch and discharge air sensingtubeCondensate drain pan overflowswitchClogged filter switch and condensatedrain pan overflow switchFan failure switch and condensatedrain pan overflow switchDischarge air sensing andcondensate drain pan overflowswitchClogged filter switch, fan failureswitch and condensate drain panoverflow switchClogged filter switch, discharge airsensing tube and condensate drainpan overflow switchFan failure switch, discharge airsensing tube and condensate drainpan overflow switchClogged filter switch, fan failureswitch, discharge air sensing andcondensate drain pan overflowswitchDigit 26—System MonitoringControlsDigit 19—Disconnect/CircuitBreaker (three-phase only)0A0Digit 27—Unit HardwareEnhancementsNo disconnect/no circuit breakerDigit 20—Convenience Outlet0No convenience outletDigit 21—CommunicationsOptions01No monitoring controlsDemand control ventilation (CO2)10No enhancementsStainless steel drain panModel Number NotesNo communications interfaceTrane communications interfaceLonTalk communications interface1.Manual outside air damper will shipfactory supplied within the unit, butmust be field installed.Digit 22—Refrigeration SystemOption2.High pressure control crankcaseheaters are standard on all units.Standard refrigeration system53.Belt drive is standard on all units.4.Economizer with barometric relief isfor downflow configured units only.Order economizer without barometricrelief for horizontal configuration.Barometric relief for horizontalconfigured units must be ordered asfield-installed accessory.5.Standard metering devices are TXVs.6.Frostat is available asfactory-installed option only.7.Electric heaters are available only forfield-installed options.8.Available only for gas heat models.9.Not available on heat pumps.0120Digit 23—Refrigeration ControlsNote: Applicable to digit 7 E0 No refrigeration control21 Frostat 6Digit 24—Smoke Detector0No smoke detectorDigit 25—System MonitoringControls0123456RT-SVX38C-ENStandard panels/standard filtersHinged access panels/standardfiltersStandard panels/2" MERV 8 filtersHinged access panels/2" MERV 8filtersStandard panels/2" MERV 13 filtersHinged access panels/2" MERV 13filters7No monitoring controlClogged filter switchFan failure switchDischarge air sensing tubeClogged filter switch and fan failureswitchClogged filter switch and dischargeair sensing tubeFan failure switch and discharge airsensing tube10. Demand control ventilation optionincludes wiring only. The C02 sensoris a field-installed only option.5

General InformationUnit InspectionCompressor NameplateAs soon as the unit arrives at the job siteThe nameplate for the compressors are located on the sideof the compressor. Verify that the nameplate data matches the data on thesales order and bill of lading (including electrical data). Verify that the power supply complies with the unitnameplate specifications. Visually inspect the exterior of the unit, including theroof, for signs of shipping damage.If the job site inspection of the unit reveals damage ormaterial shortages, file a claim with the carrierimmediately. Specify the type and extent of the damage onthe “bill of lading” before signing. Visually inspect the internal components for shippingdamage as soon as possible after delivery and beforeit is stored. Do not walk on the sheet metal base pans. If concealed damage is discovered, notify the carrier’sterminal of damage immediately by phone and bymail. Concealed damage must be reported within 15days. Request an immediate joint inspection of the damageby the carrier and the consignee. Do not removedamaged material from the receiving location. Takephotos of the damage, if possible. The owner mustprovide reasonable evidence that the damage did notoccur after delivery. Notify the appropriate sales representative beforeinstalling or repairing a damaged unit.StorageTake precautions to prevent condensate from forminginside the unit’s electrical compartments and motors in thefollowing situations:Unit DescriptionBefore shipment, each unit is leak tested, dehydrated,charged with refrigerant and compressor oil, and runtested for proper control operation.The condenser coils are either aluminum fin, mechanicallybonded to copper tubing or all aluminum microchannel.Direct-drive, vertical discharge condenser fans areprovided with built-in thermal overload protection.There are two control systems offered for these units. Theelectromechanical control option uses a thermostat toperform unit functions. The ReliaTel control module is amicroelectronic control system that is referred to as“refrigeration module” (RTRM). The acronym RTRM isused extensively throughout this document whenreferring to the control system network.These modules through proportional/integral controlalgorithms perform specific unit functions that govern unitoperation in response to zone temperature, supply airtemperature, and/or humidity conditions depending onthe application. The stages of capacity control for theseunits are achieved by starting and stopping thecompressors.The RTRM is mounted in the control panel and is factorywired to the respective internal components. The RTRMreceives and interprets information from other unitmodules, sensors, remote panels, and customer binarycontacts to satisfy the applicable request for cooling.Economizer Control Actuator (Optional) The unit is stored before it is installed.ReliaTel Control The unit is set on the roof curb, and temporary heat isprovided in the building. Isolate all side panel serviceentrances and base pan openings (e.g., conduit holes,Supply Air and Return Air openings, and flueopenings) from the ambient air until the unit is readyfor start-up.The ECA monitors the mixed air temperature, return airtemperature, minimum position setpoint (local orremote), power exhaust setpoint, CO2 setpoint, CO2, andambient dry bulb/enthalpy sensor or comparativehumidity (return air humidity against ambient humidity)sensors, if selected, to control dampers to an accuracy of /- 5% of stroke. The actuator is spring returned to theclosed position any time that power is lost to the unit. It iscapable of delivering up to 25 inch pounds of torque andis powered by 24 VAC.Note: Do not use the unit’s heater for temporary heatwithout first completing the start-up proceduredetailed under “Unit Start-Up,” p. 32.The manufacturer will not assume any responsibility forequipment damage resulting from condensateaccumulation on the unit’s electrical and/or mechanicalcomponents.Unit NameplateA Mylar unit nameplate is located on the unit’s cornersupport next to the filter access panel. It includes the unitmodel number, serial number, electrical characteristics,refrigerant charge, as well as other pertinent unit data.6RTCI—ReliaTel Trane CommunicationInterface (Optional)This module is used when the application calls for anICSTM building management type control system. Itallows the control and monitoring of the system throughan ICS panel. The module can be ordered from the factoryor ordered as a kit to be field installed. Follow theRT-SVX38C-EN

General Informationinstallation instruction that ships with each kit when fieldinstallation is necessary.RLCI—ReliaTel LonTalk CommunicationInterface (Optional)This module is used when the application calls for anICSTM building management type control system that isLonTalk. It allows the control and monitoring of the systemthrough an ICS panel. The module can be ordered from thefactory or ordered as a kit to be field installed. Follow theinstallation instruction that ships with each kit when fieldinstallation is necessary.RBCI—ReliaTel BACnet CommunicationsInterface (Optional)This module is used when the application calls for an openBACnet protocol. It allows the control and monitoring ofthe system through an ICS panel. The module can beordered from the factory or as a kit to be field installed.Follow the installation instructions that ships with each kitwhen field installation is necessary.RTOM—ReliaTel Options Module (Optional)The RTOM monitors the supply fan proving, clogged filter,supply air temperature, exhaust fan setpoint, supply airtempering, Frostat and smoke detector. Refer to systeminput devices and functions for operation.System Input Devices and FunctionsThe RTRM must have a zone sensor or thermostat input inorder to operate the unit. The flexibility of having severalmode capabilities depends upon the type of zone sensor orthermostat selected to interface with the RTRM.The descriptions of the following basic Input Devices usedwithin the RTRM network are to acquaint the operator withtheir function as they interface with the various modules.Refer to the unit’s electrical schematic for the specificmodule connections.The following controls are available from the factory forfield installation.Supply Fan Failure Input (Optional)The Fan Failure Switch can be connected to sense indoorfan operation:FFS (Fan Failure Switch)—If air flow through the unit is notproven by the differential pressure switch connected to theRTOM (factory setpoint 0.07" w.c.) within 40 secondsnominally, the RTRM will shut off all mechanicaloperations, lock the system out, send a diagnostic to ICS,and the SERVICE output will flash. The system will remainlocked out until a reset is initiated either manually orthrough ICS.Clogged Filter Switch (Optional)The unit-mounted clogged filter switch monitors thepressure differential across the return air filters. It ismounted in the filter section and is connected to theRT-SVX38C-ENRTOM. A diagnostic SERVICE signal is sent to the remotepanel if the pressure differential across the filters is at least0.5" w.c. The contacts will automatically open when thepressure differential across the filters decreases toapproximately 0.4" w.c. The clogged filter output isenergized when the supply fan is operating and theclogged filter switch has been closed for at least 2 minutes.The system will continue to operate regardless of thestatus of the filter switch.Note: On units equipped with factory installed MERV 13filters, a clogged filter switch with differentpressure settings will be installed. This switch willclose when the differential pressure isapproximately 0.8' w.c. and open when thedifferential falls to 0.7" w.c.Condensate Drain Pan Overflow Switch(Optional)ReliaTel OptionThis input incorporat

Digit 14—Fresh Air Selection r i a h s e r F0No A Manual outside air damper 0–50%1 B Motorized Outside air damper 0–50% C Economizer, dry bulb 0–100% without barometric relief4 D Economizer, dry bulb 0–100% with barometric relief4 E Economizer, reference enthalpy 0-100% without barometric relief3,4 F Economizer, reference enthalpy