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Trane Sintesis RTAF, Installation, Operation And Maintenance Manual

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Trane Sintesis RTAF Installation, Operation And Maintenance Manual Download Page 26

Installation Electrical

26

RTAF-SVX001A-EN

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.

The relay output is required to operate the Evaporator

Water Pump (EWP) contactor. Contacts should be

compatible with 115/240 VAC control circuit. Normally, the
EWP relay follows the AUTO mode of the chiller.Whenever
the chiller has no diagnostics and is in the AUTO mode,
regardless of where the auto command is coming from,
the normally open relay is energized. When the chiller
exits the AUTO mode, the relay is timed to open in an
adjustable (using TechView) 0 to 30 minutes. The non-

AUTO modes in which the pump is stopped, include Reset,

Stop, External Stop, Remote Display Stop, Stopped by

Tracer, Start Inhibited by Low Ambient Temp, and Ice

Building complete.

When going from Stop to Auto, the EWP relay is energized

immediately. If evaporator water flow is not established in
20 minutes (for normal transition) or 4 minutes, 15
seconds (for pump commanded ON due to an override
safety), the UC800 de-energizes the EWP relay and
generates a non-latching diagnostic. If flow returns (e.g.
someone else is controlling the pump), the diagnostic is
cleared, the EWP is re-energized, and normal control
resumed.

If evaporator water flow is lost once it had been
established, the EWP relay remains energized and a non-
latching diagnostic is generated. If flow returns, the
diagnostic is cleared and the chiller returns to normal
operation.

In general, when there is either a non-latching or latching
diagnostic, the EWP relay is turned off as though there was
a zero time delay. Exceptions whereby the relay continues
to be energized occur with:

•

Low Chilled Water Temperature diagnostic

(non-latching unless also accompanied by an Evap
Leaving Water Temperature Sensor Diagnostic)

or

•

Interrupt Failure diagnostic

in which a compressor

continues to draw current even after commanded to
have shutdown.

or

•

Loss of Evaporator Water Flow diagnostic

(non-

latching) and the unit is in the AUTO mode, after
initially having proven evaporator water flow.

NOTICE:

Equipment Damage!

If the microprocessor calls for a pump to start and
water does not flow, the evaporator may be damaged
catastrophically. It is the responsibility of the installing
contractor and/or the customer to ensure that a pump
will always be running when called upon by the chiller
controls.

Table 11.

Pump Relay Operations

Chiller Mode

Relay Operation

Auto

Instant Close

Ice Building

Instant Close

Tracer Override

Timed Open

Stop

Timed Open

Ice Complete

Instant Open

Diagnostics Instant 

Open

Summary of Contents for Sintesis RTAF

Page 1: ...quires specific knowledge and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment Sintesis Air Cooled Chillers Model RTAF Installation Operation and Maintenance RTAF SVX001A EN June 20...

Page 2: ...dicates a potentially hazardous situation which if not avoided could result in minor or moderate injury It could also be used to alert against unsafe practices NOTICE Indicates a situation that could result in equipment or property damage only accidents WARNING Proper Field Wiring and Grounding Required Failure to follow code could result in death or serious injury All field wiring MUST be perform...

Page 3: ...thout written permission Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any person of such revision or change Trademarks All trademarks referenced in this document are the trademarks of their respective owners WARNING Refrigerant under High Pressure Failure to follow instructions below could result in an explosion whi...

Page 4: ...d Leveling 16 Chilled Water Piping Recommendations 18 Drainage 18 Water Treatment 18 Evaporator Piping 18 Evaporator Piping Components 18 Entering Chilled Water Piping 19 Leaving Chilled Water Piping 19 Waterbox Drains and Vents 19 Pressure Gauges 19 Pressure Relief Valves 19 Evaporator Flow Switch 20 Evaporator Waterside 21 Pressure Drop Curves 21 Freeze Avoidance 23 Low Evaporator Refrigerant Cu...

Page 5: ...ed Shutdown Procedure 49 Seasonal Unit Start Up Procedure 50 System Restart After Extended Shutdown 50 Sequence of Operation 51 Software Operation Overview 51 Timelines 51 Power Up Diagram 52 Power Up to Starting 53 Stopped to Starting 54 Running Lead Compressor Circuit Start and Run 55 Running Lag Compressor Circuit Start and Run 56 Satisfied Setpoint 57 Normal Shutdown to Stopped or Run Inhibit ...

Page 6: ...agrams Model Number Coding System Model numbers are composed of numbers and letters that represent features of the equipment Shown below is a sample of typical unit model number An example of a typical unit model number M N is RTAF 130E UA0V XUA2 N21X 1NXN CVSC AXXX XPAX 1XXX X Each position or group of positions in the model number is used to represent a feature Unit model number digits are selec...

Page 7: ...ion N Factory Insulation All Cold Parts 0 75 Digit 23 Unit Application X Standard Ambient 14 to 115 F 10 to 46 C L Low Ambient 4 to 115 F 20 to 46 C H High Ambient 14 to 130 F 10 to 54 4 C W Wide Ambient 4 to 130 F 20 to 54 4 C Digit 24 Condenser Fin Options N Aluminum Microchannel Digit 25 FanType C Variable Speed Fans Digit 26 Oil Cooler C Oil Cooler Digit 27 Compressor Starter V Variable Speed ...

Page 8: ... Frame N N Frame Digit 7 Compressor Capacity 3 GP2 Smaller capacity minor 4 GP2 Larger capacity major Compressor Serial Number Digits 1 2 Year YY Last two digits of year of manufacture Digits 3 4 Week WW Week of build from 00 to 52 Digit 5 Day 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday 7 sunday Digits 6 8 CodedTime Stamp TTT Used to ensure uniqueness of serial number Digit 9 Ass...

Page 9: ... Drive Each refrigerant circuit is provided with filter sight glass electronic expansion valve and charging valves The shell and tube CHIL Compact High performance Integrateddesign Lowcharge evaporatoris manufactured in accordance with the ASME standards or other international codes Each evaporator is fully insulated and equipped with water drain and vent connection Units are shipped with full oil...

Page 10: ... Fans Quantity ckt 1 ckt 2 5 5 5 5 6 6 6 6 6 6 7 7 7 7 Diameter in 31 5 31 5 31 5 31 5 31 5 31 5 31 5 mm 800 800 800 800 800 800 800 Nominal speed rpm 810 810 810 810 810 909 909 Airflow cfm 9959 9959 9959 9959 9959 11230 11230 m3 s 4 7 4 7 4 7 4 7 4 7 5 3 5 3 Tip Speed ft min 6673 6673 6673 6673 6673 7500 7500 m s 33 9 33 9 33 9 33 9 33 9 38 1 38 1 Ambient Temperature Range Standard Ambient F C 1...

Page 11: ... not remove damaged material from the receiving location Take photos of the damage if possible The owner must provide reasonable evidence that the damage did not occur after delivery 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 theTrane sales representative and arrange for ...

Page 12: ...g Option relays and wiring Water piping Flow switch Taps for thermometers and gauges Thermometers Water flow pressure gauges Isolation and balancing valves in water piping Vents and drain Waterside pressure relief valves Water strainer Insulation Insulation Insulation Water Piping Connection Components Grooved pipe Flange kit optional Other Materials R 134a or R 513A refrigerant Dry nitrogen optio...

Page 13: ...t as facing control panel However either side is acceptable A full 36 914 mm clearance is required in front of the control panel Must be measured from front of panel not end of unit base Clearances shown are sufficient for tube pull Unit Dimensions See unit submittals for specific unit dimensions and water connection locations Weights Figure 2 RTAF service clearances Table 3 Sintesis unit weights ...

Page 14: ...codes which require additional clearances will take precedence over these recommendations For close spacing information see RLC PRB037 EN Lifting and Moving Instructions WARNING Heavy Objects Failure to follow instructions below or properly lift unit could result in unit dropping and possibly crushing operator technician which could result in death or serious injury and equipment or property only ...

Page 15: ...200 3071 1393 3059 1387 2447 1110 2435 1104 215 3113 1412 3195 1449 2482 1126 2565 1163 96 2438mm Spreader Bar Lifting Location 2 Lifting location 3 located on other side of unit Lifting Location 1 Lifting location 4 located on other side of unit Control Panel Figure 6 Center of gravity Table 5 Centers of gravity Tons CGx CGy CGz in mm in mm in mm 115 93 0 2363 43 8 1112 36 7 932 130 93 1 2364 43 ...

Page 16: ...t mounting points Mount the unit directly to the concrete pads or footings Level the unit using the base rail as a reference The unit must be level within 1 4 in 6 mm over the entire length and width Use shims as necessary to level the unit Elastomeric Isolators Note See unit submittal or Table 7 p 17 thru Table 8 p 17 for point weights isolator location and isolator selections 1 Secure the isolat...

Page 17: ...5 1077 488 989 449 200 2189 993 2162 974 1734 787 1702 772 923 419 907 411 711 322 699 317 215 2303 1045 2159 979 1761 799 1653 750 901 409 1271 576 673 305 634 287 Table 8 Isolator selections Location Tons 1 2 3 4 5 6 7 8 115 Red 62 Red 62 Red 62 Red 62 Black 61 Black 61 130 Red 62 Red 62 Red 62 Red 62 Black 61 Black 61 150 Gray 64 Gray 64 Red 62 Red 62 Black 61 Black 61 170 Gray 64 Gray 64 Red 6...

Page 18: ...and leaving water line to control water flow balance Install shutoff valves on both the entering and leaving water lines so that the evaporator can be isolated for service To prevent damage to chilled water components do not allow evaporator pressure maximum working pressure to exceed 150 psi 10 5 bar A pipe strainer must be installed in the entering water line Failure to do so can allow waterborn...

Page 19: ...ge the heaters must be disconnected to prevent overheating To drain properly use pressurized air to ensure all water is removed from the evaporator Pressure Gauges Install field supplied pressure components as shown in Table 9 p 19 Locate pressure gauges or taps in a straight run of pipe avoid placing them near elbows To read manifold pressure gauges open one valve and close the other depending on...

Page 20: ...ow OFF Flow Green and outside yellow ON No Flow Center yellow ON continuously Miswire If using auxiliary flow sensing both yellow LEDs come on initially when flow is stopped The center yellow LED will turn off after approximately 7 seconds The LED indicators are otherwise the same as indicated above Indexing Flow Switch To properly index the flow switch the following requirements must be met Dot m...

Page 21: ...rator Waterside Pressure Drop Curves Figure 11 Evaporator water pressure drop 2 pass without turbulators 0 5 10 15 20 25 30 35 40 45 50 0 100 200 300 400 500 600 700 800 900 1000 Pressure Drop ft H2O Water Flow GPM 215T 200T 180T 170T 150T 130T 115T ...

Page 22: ... EN Figure 12 Evaporator water pressure drop 2 pass with turbulators 0 0 8 0 16 0 24 0 32 0 40 0 48 0 56 0 64 0 72 0 80 0 88 0 0 100 200 300 400 500 600 700 800 900 1000 Pressure Drop ft H2O Water Flow GPM 215T 200T 180T 170T 150T 130T 115T ...

Page 23: ... average of the evaporator entering water temperature the evaporator leaving water temperature and the evaporator refrigerant pool temperature is less than Low Evaporator Refrigerant Temperature Cutout LERTC 4 F for a period of time OFF again if the evaporator refrigerant pool temperature rises above the LERTC 6 F for a period of time Note Time period referenced for ON and Off conditions above is ...

Page 24: ...l Percentage Solution Freeze Point F Minimum Recommended LERTC F Minimum Recommended LWTC F Glycol Percentage Solution Freeze Point F Minimum Recommended LERTC F Minimum Recommended LWTC F 0 32 0 28 6 35 0 0 32 0 28 6 35 0 2 31 0 27 6 34 0 2 31 0 27 6 34 0 4 29 7 26 3 32 7 4 29 9 26 5 32 9 5 29 0 25 6 32 0 5 29 3 25 9 32 3 6 28 3 24 9 31 3 6 28 7 25 3 31 7 8 26 9 23 5 29 9 8 27 6 24 2 30 6 10 25 5...

Page 25: ...mbient temperature drops below 32 F the thermostat energizes the heaters and theTracer UC800 activates the pumps If ambient temperatures below 4 F are expected contact yourTrane local office WARNING Hazardous Voltage w Capacitors Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury Disconnect all electric power including remote disconnects a...

Page 26: ...diagnostic If flow returns e g someone else is controlling the pump the diagnostic is cleared the EWP is re energized and normal control resumed If evaporator water flow is lost once it had been established the EWP relay remains energized and a non latching diagnostic is generated If flow returns the diagnostic is cleared and the chiller returns to normal operation In general when there is either ...

Page 27: ...rgets Circuit 2 or any of the Compressors on Circuit 2 Unit Limit Mode This output is true whenever a circuit on the unit has been running in one of the limit modes continuously for the Limit Relay debounce time A given limit or overlapping of different limits must be in effect continuously for the debounce time prior to the output becoming true It will become false if no limits are present for th...

Page 28: ...ct 5K3 is provided the chiller will run normally when the contact is open UC800 will accept either an isolated contact closure External Ice Building command or a Remote Communicated input Tracer to initiate and command the Ice Building mode UC800 also provides a Front Panel IceTermination Setpoint settable throughTracer TU and adjustable from 20 to 31 F 6 7 to 0 5 C in at least 1 F 1 C increments ...

Page 29: ...llation or can be used to enable or disable the feature if installed EDLS and ECWS Analog Input Signal Wiring Details Both the ECWS and EDLS can be connected and setup as either a 2 10VDC factory default 4 20 mA or resistance input also a form of 4 2OmA as indicated below Depending on the type to be used theTracerTU Service Tool must be used to configure the LLID and the MP for the proper input ty...

Page 30: ...esign DeltaTemp The equation for Constant Return is then as follows CWS CWS 100 Design DeltaTemp TWE TWL and CWS or CWS and CWS CWS or Maximum Reset When any type of CWR is enabled the MP will step the Active CWS toward the desired CWS based on the above equations and setup parameters at a rate of 1 degree F every 5 minutes until the Active CWS equals the desired CWS This applies when the chiller ...

Page 31: ...7 must be removed prior to unit operation 1 24 Motor Current See Table 15 1 25 Motor Nominal Speed See Table 15 1 71 Start Delay 0s 1 73 Flying Start 0 Disabled 1 78 Compressor Start Max Speed Hz 30Hz 1 79 Compressor Start Max Time to Trip 10s 1 82 Min Speed for Function at Stop Hz 10Hz 1 87 Trip Speed Low Hz 25Hz 3 02 Minimum Reference 30Hz 3 41 Ramp 1 Ramp Up Time 5s 3 42 Ramp 1 Ramp Down Time 5...

Page 32: ...s RemoteTerminal Unit Interface Modicon Communication Bus Modbus enables the chiller controller to communicate as a slave device on a Modbus network Chiller setpoints operating modes alarms and status can be monitored and controlled by a Modbus master device Note For more information see BAS SVP01 EN Table 15 Compressor specific parameter settings 115 to 215 tons 60Hz a Parameters L1 L2 M3 M4 N3 I...

Page 33: ...rtant 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 In addition some states or municipalities may have additional requireme...

Page 34: ...er side working pressure of 150 psig Standard water connections are grooved forVictaulic style pipe couplings with flange style connections optionally available Waterboxes are only available in a 2 pass configuration and include a vent drain and fittings for temperature control sensors A factory installed flow switch is installed on the supply waterbox in the evaporator inlet connection Evaporator...

Page 35: ...for setting BACnet MAC address or MODBUS ID 2 LINK for BACnet MS TP or MODBUS Slave two terminals Field wired if used 3 LINK for BACnet MS TP or MODBUS Slave two terminals Field wired if used 4 Machine bus for existing machine LLIDs IPC3Tracer bus 19 200 baud IPC3 Bus used for Comm4 usingTCI or LonTalk using LCI C 5 Power 210 mA at 24 Vdc and ground terminations same bus as item 4 Factory wired 6 ...

Page 36: ...y basis setpoints limits diagnostic information and reports Day to day operational information is presented at the display Logically organized groups of information chiller modes of operation active diagnostics settings and reports put information conveniently at your fingertips Main Display Area Home Screen All screens appear within the main display area shown as location in Table 19 Figure 17 LE...

Page 37: ... Water Flow Status X X Condenser Water Flow Status Figure 20 Chiller operating modes Table 18 Operating modes Chiller Modes Description MP Resetting The main processor is going through reset No chiller sub modes Stopped The chiller is not running either circuit and cannot run without intervention Further information is provided by the sub mode Local Stop Chiller is stopped by TD7 Stop button comma...

Page 38: ...in this mode for evaporator water flow to be established per the flow switch hardwired input Waiting for A Need to Cool The chiller will wait indefinitely in this mode for an evaporator leaving water temperature higher than the Chilled Water Setpoint plus some control dead band Chilled Water Control Chiller is running to provide a chilled water temperature per the active chilled water setpoint may...

Page 39: ...own is imminent The chiller is going through a compressor run unload or extended operational pumpdown of the lag circuit compressor or all circuits simultaneously Evaporator Water Pump Off Delay min sec The evaporator water pump is continuing to run past the shutdown of the compressors executing the pump off delay timer Local Stop Maximum Capacity Chiller is in the process of being stopped by TD7 ...

Page 40: ...ove an item from the custom report touch it It responds by changing to blue You can use the arrows to scroll through the rest of the items that can be removed from the custom report Then touch Remove to move the selected item to the box on the left side of the screen c To re order items in the custom report touch it It responds by changing to blue Use the arrows to change the order of a highlighte...

Page 41: ...XXX X PSIA kPa Outdoor Air Temperature X X F C Figure 26 Report compressor screen Table 21 Report compressor screen items Description Resolution Units Compressor Running Status On Off Text Average Motor Current RLA XX X RLA Compressor Starts XX Text Compressor Running Time XX XX Hr Min Oil Loss Level Sensor Wet Dry Text Discharge Temperature X X F C Discharge Temperature X X F C Compressor Oil Pre...

Page 42: ...ttings columnontheSettingsscreen suchasChillerSettings The corresponding screen appears in this case the Chiller Settings screen 2 Touch the button that shows the equipment setting you want to change A screen that allows you to change the equipment setting appears There are two types of these screens a For screens with button selections Figure 30 touch the button that represents the setting you wa...

Page 43: ...rator Water Pump Off Delay XX Min Condenser Pump Prestart Time XX Min High Evap Water Temp Cutout XXX X F C Evaporator Leaving Water Temp Cutout XX X F C Low Refrigerant Temperature Cutout XX X F C Current Limit Softload Start Point XXX X Current Limit Control Softload Time XXXX Sec Capacity Control Softload Time XXXX Sec Local Atmospheric Pressure XXX X psi kPa Power Up Start Delay XXX Min Featur...

Page 44: ... any of these buttons to view a screen where you can change the format The button representing the format currently used is shaded see the MMDDYYYY button To change the format 1 Touch the button that shows that format you prefer 2 Touch Save to confirm your selection and to return to the Display Preferences screen Date Format Use the Date Format screen to choose from the following date formats MMD...

Page 45: ...e the Tracer AdaptiView display screen for 15 seconds so that you can clean the screen without it responding to touch During this time the screen is black with a number in the center that counts down the seconds After 15 seconds the Settings screen re appears Security Settings If security if enabled theTracer AdaptiView display requires that you log in with a four digit security PIN to make settin...

Page 46: ...ponds with the desired level of security To log in 1 Touch the Log in button The Log in screen appears Figure 38 2 Use the keypad to enter your PIN a The PIN is a four digit number which was configured for your system with theTracerTU service tool b As you enter the number the PIN remains hidden by asterisks Note If you enter an invalid PIN an error message appears on the Log in screen 3 Touch Sav...

Page 47: ...ces All chiller status machine configuration settings customizable limits and up to 100 active or historic diagnostics are displayed through the service tool software interface LEDs and their respectiveTracerTU indicators visually confirm the availability of each connected sensor relay and actuator TracerTU is designed to run on a customer s laptop connected to theTracer AdaptiView control panel w...

Page 48: ...ist in chapter Log and Check Sheets p 86 Important Start up must be performed byTrane or an agent ofTrane specifically authorized to perform start up and warranty ofTrane products Contractor shall provideTrane or an agent ofTrane specifically authorized to perform start up with notice of the scheduled start up at least two weeks prior to the scheduled start up ...

Page 49: ... Press the STOP key on the AdaptiviewTD7 The compressors will continue to operate and an operational pumpdown cycle will be initiated 2 UC800 pump control will turn off the pump after a minimum 1 min delay when the STOP key is pressed and automatically restart the pump when the unit starts normally 3 The unit will start normally provided the following conditions exist a The UC800 receives a call f...

Page 50: ...evaporator and condenser while filling and close when filling is completed 4 Close the fused disconnect switches that provides power to the chilled water pump 5 Start the evaporator water pump and while water is circulating inspect all piping for leakage Make any necessary repairs before starting the unit 6 While the water is circulating adjust the water flows and check the water pressure drops th...

Page 51: ...software state circle corresponds to the shading on the time lines that show the state the chiller is in There are five generic states that the software can be in Power Up Stopped Starting Running Stopping Timelines Thetimelineindicatestheupperleveloperatingmode as it would be viewed on theTracer AdaptiView The shading color of the cylinder indicates the software state Text in parentheses indicate...

Page 52: ...process takes 25 seconds for the UC800 and 90 seconds for the display On all power ups the software model always will transition through the Stopped Software state independent of the last mode If the last mode before power down was Auto the transition from Stopped to Starting occurs but it is not apparent to the user Figure 43 Sequence of operation power up diagram ...

Page 53: ...mp on command Power up Start Delay set to 0 minutes Need to cool differential to start already exists Oil level is detected immediately The above conditions would allow for a minimum power up to starting the first compressor time of about 45 seconds variations may exist due to options installed Note that it is not advisable to start a chiller cold the oil heaters should be in operation for a suffi...

Page 54: ...ortest allowable time would be under the following conditions No motor restart inhibit time left from subsequent starts Evaporator Water flow occurs quickly with pump on command Need to cool differential to start already exists The above conditions would allow a compressor to start in about 20 seconds Figure 45 Sequence of events stopped to starting ...

Page 55: ...F SVX001A EN 55 Running Lead Compressor Circuit Start and Run Figure 46 shows a typical start and run sequence for the lead compressor and its circuit Figure 46 Sequence of operation running lead compressor circuit start nd run ...

Page 56: ... RTAF SVX001A EN Running Lag Compressor Circuit Start and Run Figure 47 shows a typical start and run sequence for the lag compressor and its circuit Figure 47 Sequence of operation running lag compressor circuit start nd run ...

Page 57: ...VX001A EN 57 Satisfied Setpoint Figure 48 shows the normal transition from Running to shutting down due to the Evap Leaving water temp falling below the differential to stop setpoint Figure 48 Sequence of events satisfied setpoint ...

Page 58: ...ed or Run Inhibit Figure 49 shows theTransition 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 Figure 49 Sequence of events normal shutdown to stopped or run inhibit ...

Page 59: ...pped or Run Inhibit Figure 50 shows the transition from Running through an Immediate Shutdown The dashed lines on the top attempt to show the final mode if you enter the stop via various inputs Figure 50 Sequence of events immediate shutdown to stopped or run inhibit ...

Page 60: ...60 RTAF SVX001A EN Ice Making Running to Ice Making to Running Figure 51 shows the transition from normal cooling to Ice making back to normal cooling Figure 51 Sequence of events ice making running to ice making to running ...

Page 61: ...F SVX001A EN 61 Ice Making Auto to Ice Making to Ice Making Complete Figure 52 shows the transition fromAuto to Ice making to Ice Making Complete Figure 52 Sequence of events ice making auto to ice making to ice making complete ...

Page 62: ... and monthly procedures Check the oil level while the unit is off See Oil Sump Level Check p 63 Routine changing of the oil is not required Make an oil analysis to determine the condition of the oil HaveTrane or another qualified laboratory perform a compressor oil analysis to determine system moisture content and acid level Contact a qualified service organization to leak test the chiller to chec...

Page 63: ... as possible for a minimum of 30 minutes For an accurate reading 40 or more minutes at full load with normal steady discharge superheat readings and no limits warnings is recommended Assessing oil charge after running at minimum or low loads may lead to an inaccurate reading 2 Cycle the compressor offline 3 Let the chiller sit powered but offline to allow the oil separator heater to boil off the r...

Page 64: ...ndenser coil should be cleaned at minimum once each year or more if the unit is located in a dirty or corrosive environment Coil Cleaning Cleaning with cleansers or detergents is strongly discouraged due to the all aluminum construction Water should prove sufficient Any breach in the tubes can result in refrigerant leaks 1 Disconnect Power to the unit Important Bridging between the main supports r...

Page 65: ...low a Sprayer nozzle pressure should not exceed 580 psi b The maximum source angle should not exceed 25 to the face of the coil See Figure 54 For best results spray the microchannel perpendicular to face of the coil c Spray nozzle should be approximately 1 3 from the coil surface d Use at least a 15º fan type of spray nozzle Note To avoid damage from the spray wand contacting the coil make sure th...

Page 66: ...Special Action means a special action or mode of operation limp along is invoked but without shutdown and Info means an Informational Note orWarning is generated Design Note TU does not support display of Special Action on its Diagnostics pages so that if a diagnostic has a special action defined in the table below it will be displayed only as InformationalWarning as long as no circuit or chiller ...

Page 67: ...terrupt Failure xA Chiller Immediate Shutdownand Special Action Latch AFD Intended to be OFF Respective AFD is reporting that it is still running the compressor when the MP has commanded the drive compressor to be Off Detection time shall be 10 seconds minimum and 15 seconds maximum On detection and until the controller is manually reset this diagnostic shall be active and the alarm relay shall be...

Page 68: ...rip in a maximum of 0 3 second from compressor start Local Power Loss xy Cprsr Immediate NonLatch All compressor running modes all compressor starting and non running modes The compressor had previously established currents while running and then all three phases of current were lost Design Less than 10 RLA trip in 2 64 seconds This diagnostic will preclude the Phase Loss Diagnostic and the Transi...

Page 69: ...I xy Cprsr Immediate Latch Starting Adaptive Frequency Starter Type As part of the normal start sequence to apply power to the compressor the Shorting Contactor 1K3 and then the Main Contactor 1K1 were energized 1 6 seconds later there were no currents detected by the CT s for the last 1 2 Seconds on all three phases The test above applies to all forms of starters except Adaptive Frequency Drives ...

Page 70: ...ver operational for BacNet Communication interface BCIC and only operational with a LonTalk Communication interface LCIC if so configured by the BAS or Tracer system Remote Chiller Service Recommended Chiller Warning Latch Service Messages Enabled Chiller service interval time has elapsed Chiller service is recommended Remote Compressor Discharge Refrigerant Temperature Sensor xy Cprsr Disch Rfgt ...

Page 71: ...orator Isolation Valve spec for details Local Evaporator Isolation Valve Failed To Open Evap Isolation Valve Failed To Open Evap Iso Vlv Failed To Open Circuit Immediate Latch All Evaporator isolation valve was commanded to open but limit switches did not make expected changes within allotted time See Evaporator Isolation Valve spec for details Local Evaporator Isolation Valve Illegal Switch State...

Page 72: ...d revert to Evaporator Saturated Temperature for freeze protection functions Remote Evaporator Refrigerant Pool Temperature Sensor Error Cktx Evap Rfgt Pool Temp Sensor Error Cktx Evap Pool Temp Error Cktx Circuit Info and Special Action Latch Ckt Energized Ckt Not Energized The evaporator refrigerant pool temperature measurement is larger than the evaporator entering water temperature by more tha...

Page 73: ...arning and Special Action NonLatch All After the pump request was activated the evaporator water flow overdue wait time elapsed before water flow was established Special action is to keep the evap pump request active in a diagnostic override mode See Evaporator_Water_Pump_Control doc Remote Evaporator Water Flow Overdue Pump 2 Evap Wtr Flow Overdue Pump 2 Chiller Warning and Special Action NonLatc...

Page 74: ...ater pump and its associated pump heat from causing refrigerant side pressures close to the evaporator relief valve setting when the chiller is not running such as could occur with Evap Water Flow Overdue or Evaporator Water Flow Loss Diagnostics Remote High Evaporator Shell Refrigerant Pressure Circuit 1 High Evap Shell Rfgt Pressure Ckt1 High Evap Shell Press Ckt1 Chiller Immediate NonLatch All ...

Page 75: ... will get an AFD Fault xA diagnostic when the HPC is tripped Local HighRefrigerant Pressure Ratio xy High Rfgt Press Ratio xy Cprsr Immediate Latch Cprsr Energized The pressure ratio for the respective circuit exceeded 12 3 for 1 contiguous minute while any compressor is running or in service pumpdown This pressure ratio is a fundamental limitation of the HiVi compressor The pressure ratio is defi...

Page 76: ...pump control and de energize the Freeze Avoidance Request Automatic reset occurs when the respective Evap Rfgt Pool Temp rises 2 F 1 1 C above the LERTC cutout setting and the Chiller Off LERTC Integral is less than 1 3 of its trip value This diagnostic even while active does not prevent operation of either circuit Remote Low Evaporator Water Temp Unit Off Low Evap Water Temp Unit Off Evap Pump an...

Page 77: ...startup had expired Remote Oil Flow Protection Fault xy Cprsr Immediate Latch Starter Contactor Energized all Stop modes The Intermediate Oil Pressure Sensor for this cprsr is reading a pressure either above its respective circuit s Condenser Pressure by 15 Psia or more or below its respective Suction Pressure 10 Psia or more for 30 seconds continuously Local Oil Pressure Sensor xy Cprsr Immediate...

Page 78: ...en compressor have been modified by a write override from TU Remote Suction Refrigerant Pressure Sensor xy Suction Pressure Sensor xy Cprsr Immediate Latch All Bad Sensor or LLID Remote Unexpected Starter Shutdown xy Unexpected Starter Shtdn xy Cprsr Normal NonLatch All Cprsr Running modes Starting Running and Preparing to Shutdown The Starter module status reported back that it is stopped when th...

Page 79: ...ommunication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss AFD Fault Input xA Comm AFD Fault xA Cprsr Normal Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss AFD Run Command xA Comm AFD Run Command xA Cprsr Normal Latch All Continual loss of communication between the MP an...

Page 80: ...ion between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss Evaporator Entering Water Temperature Comm Loss Evap Entering Water Temp Comm Evap Ent Water Temp Chiller Normal Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Note Entering Water Temp Sensor is used in EXV pressure control as well as ice...

Page 81: ...solation valves are not installed revert to Evaporator Saturated Temperature for freeze protection functions Remote Comm Loss Evaporator Shell Refrigerant Pressure Comm Loss Evap Shell Rfgt Pressure Comm Evap Shell Rfgt Press Circuit Normal Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss Evaporator Water Flow Switc...

Page 82: ... period Chiller shall discontinue use of the External Demand limit setpoint and revert to the next higher priority for Demand Limit setpoint arbitration Remote Comm Loss External Ice Building Command Comm Ext Ice Building Cmd Ice Making Mode Special Action Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Chiller shall revert to norm...

Page 83: ...Winding Tstat Cprsr 1A Comm Motor Tstat Cprsr 1A Circuit Normal Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss Motor Winding Thermostat Compressor 2A Comm Loss Motor Winding Tstat Cprsr 2A Comm Motor Tstat Cprsr 2A Circuit Normal Latch All Continual loss of communication between the MP and the Functional ID has oc...

Page 84: ...Remote Comm Loss Starter xy Cprsr Immediate Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss Step Load xy Comm Step Load xy Cprsr Normal Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss Suction Refrigerant Pressure xy Comm Loss Suctio...

Page 85: ...nits Complete wiring package is documented in RTAF SVE001 EN A laminated wiring diagram booklet is also shipped with each chiller Table 29 RTAF unit wiring drawing numbers Drawing Number Description 5722 6999 Schematic Diagram 5722 7580 Unit Component Location 5722 7552 Panel Component Location Diagram 2311 3537 Field Wiring Diagram ...

Page 86: ...rificationbefore Trane start up is scheduled and for reference during the Trane start up Where the log or check sheet also exists outside of this publication as standalone literature the literature order number is also listed Sintesis Model RTAF Installation Completion Check Sheet and Request forTrane Service RTAF ADF001 EN Operator Log ...

Page 87: ...ng units Pumps Flow switch or flow proving device installed Strainer installed in entering evaporator water piping and cleaned Water supply connected to filling system Systems filled Pumps run air bled from system Relief valve ventilation piping installed if applicable Flow balancing valves installed in leaving chilled water Gauges thermometers and air vents installed on both sides of evaporator 3...

Page 88: ...hat the applicable items listed above have been satisfactorily completed Checklist completed by ______________________________________________________________________________________________ Signed _____________________________________________________________________ Date _______________________________ In accordance with your quotation and our purchase order number __________________ we will ther...

Page 89: ... Refrigerant Temperature F Refrigerant Pressure psia Approach Temperature F Water Flow Status EXV Open CONDENSER Outdoor Air Temperature Air Flow Saturated Refrigerant Temperature F Refrigerant Pressure psia COMPRESSORS Compressor A Running Status Starts Running Time Hr Min Oil Pressure psia Motor A Active Demand Limit Setpoint Average Motor Current Compressor B if present Running Status Starts Ru...

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Page 92: ...olio of advanced controls and HVAC systems comprehensive building services and parts For more information visit www Trane 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 that reduce waste 2015Trane All rights reserved RTAF SVX001A E...

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