Trane Ascend ACR Series Installation, Operation And Maintenance Manual Download Page 4

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AC-SVX001A-EN

Model Number Information . . . . . . . . . . . . . . . . 7

Nameplates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Unit Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Model Number Coding System. . . . . . . . . 7

Compressor Nameplate . . . . . . . . . . . . . . . . . . . 7

Model Number Descriptions. . . . . . . . . . . . . . . . 8

Unit Model Number. . . . . . . . . . . . . . . . . . . . . . . 8

Compressor Information . . . . . . . . . . . . . . . . . 10

Model Number . . . . . . . . . . . . . . . . . . . . . . 10
Serial Number . . . . . . . . . . . . . . . . . . . . . . . 10

General Information . . . . . . . . . . . . . . . . . . . . . . . 11

Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . 11

Unit Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Accessory/Option Information . . . . . . . . . . . . 11

General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Drive Cooling Fluid . . . . . . . . . . . . . . . . . . . . . . 14

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Exterior Inspection . . . . . . . . . . . . . . . . . . . 15
Inspection for Concealed
Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Storage Requirements . . . . . . . . . . . . . . . . . . . 15

Installation Requirements . . . . . . . . . . . . . . . . 16

Dimensions and Weights . . . . . . . . . . . . . . . . . . 17

Weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Service Clearance . . . . . . . . . . . . . . . . . . . . . . . 18

Unit Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . 19

Installation Mechanical . . . . . . . . . . . . . . . . . . . . 23

Location Requirements . . . . . . . . . . . . . . . . . . 23

Sound Considerations . . . . . . . . . . . . . . . . 23
Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Lifting and Moving Instructions . . . . . . . . . . . 23

Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . 26

Isolation and Sound Emission . . . . . . . . . . . . 26

Unit Isolation and Leveling. . . . . . . . . . . . 26
Elastomeric Isolators . . . . . . . . . . . . . . . . . 26

Mounting Locations, Weights,
Isolators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Compressor Mounting Bolt
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Refrigerant Pressure Relief Valves . . . . . . . . 31

Evaporator Piping . . . . . . . . . . . . . . . . . . . . . . . 31

Evaporator Piping Components . . . . . . . 32

Evaporator Waterside Pressure Drop
Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . . 35

Low Evaporator Refrigerant Cutout,
Glycol Requirements . . . . . . . . . . . . . . . . . . . . 37

Installation Electrical . . . . . . . . . . . . . . . . . . . . . . 38

General Recommendations. . . . . . . . . . . . . . . 38

Adaptive Frequency

™

Drive

Capacitor Discharge . . . . . . . . . . . . . . . . . . 39
Units with Nitrogen Charge
Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Installer-Supplied Components . . . . . . . . . . . 39

Power Supply Wiring. . . . . . . . . . . . . . . . . 40
Control Power Supply . . . . . . . . . . . . . . . . 41
Service Power Connection . . . . . . . . . . . . 41
Heater Power Supply . . . . . . . . . . . . . . . . . 42

Chilled Water Pump Control . . . . . . . . . . . . . . 42

Programmable Relays . . . . . . . . . . . . . . . . . . . 43

Relay Assignments Using Tracer TU . . . . . . 43

Low Voltage Wiring . . . . . . . . . . . . . . . . . . . . . . 44

Transformer Power Rating . . . . . . . . . . . . . . . 47

Communications Interface . . . . . . . . . . . . . . . 47

Table of Contents

Summary of Contents for Ascend ACR Series

Page 1: ...ly 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 stic...

Page 2: ...th he e j jo ob b b be ei in ng g u un nd de er rt ta ak ke en n c co ou ul ld d r re es su ul lt t i in n d de ea at th h o or r s se er ri io ou us s i in nj ju ur ry y T Te ec ch hn ni ic ci ia an...

Page 3: ...hi ic ch h c co ou ul ld d r re es su ul lt t i in n d de ea at th h o or r s se er ri io ou us s i in nj ju ur ry y o or r e eq qu ui ip pm me en nt t d da am ma ag ge e S Sy ys st te em m c co on n...

Page 4: ...ators 26 Mounting Locations Weights Isolators 27 Compressor Mounting Bolt Removal 30 Drainage 30 Refrigerant Pressure Relief Valves 31 Evaporator Piping 31 Evaporator Piping Components 32 Evaporator W...

Page 5: ...em Restart After Extended Shutdown 67 Sequence of Operation 67 Software Operation Overview 67 Power Up Diagram 69 Power Up to Starting 70 Stopped to Starting 71 Running Lead Compressor Circuit Start a...

Page 6: ...stics 84 Main Processor Diagnostics 87 Communication Diagnostics 99 Unit Wiring 104 Log and Check Sheets 105 Ascend Model ACR Installation Completion Check Sheet and Request for Trane Service 106 Oper...

Page 7: ...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 ACRA 200F UA01 AA1F N1X1 A2D0...

Page 8: ...1 Factory Installed Other Fluid 15 cm s 2 Factory Installed Water 2 35 cm s 3 Factory Installed Water 3 45 cm s Digit 21 Insulation A Factory Insulation All Cold Parts 0 75 B Evaporator only Insulati...

Page 9: ...t 35 Appearance Accessories 0 No Appearance Options A Architectural Louvered Panels Digit 36 Unit Isolation 0 None 1 Elastomeric Isolators Digit 37 38 Not Used 00 Reserved for future use Digit 39 Spec...

Page 10: ...able Volume Ratio Digit 9 Refrigerant 1 R 134a Digits 10 11 Design Sequence Factory assigned Serial Number Digit 1 2 Year YY Last two digits of year of manufacture Digit 3 4 Week WW Week of build from...

Page 11: ...ther international codes Each evaporator is fully insulated and equipped with water drain and vent connections Units are shipped with full oil charge and can be ordered with either a factory refrigera...

Page 12: ...114 124 135 152 174 192 212 236 l s 7 2 7 8 8 5 9 6 11 0 12 1 13 4 14 9 Maximum Flow gpm 417 456 495 557 638 703 777 866 l s 26 3 28 8 31 2 35 1 40 2 44 3 49 0 54 6 Condenser Qty of Coils 8 10 10 12...

Page 13: ...105 28 9 to 40 6 High Ambient F C 32 to 125 0 to 52 Wide Ambient F C 0 to 125 17 7 to 52 General Unit Refrigerant HFC 134a Refrigerant Ckts 2 Minimum Load 20 18 17 15 20 18 16 15 Refrigerant Charge ck...

Page 14: ...eterioration of Trane equipment Proper fluid level is important to the operation of the unit See Drive Cooling Expansion Tank section in Maintenance chapter for fluid level check instructions The circ...

Page 15: ...remove damaged material from receiving location Take photos of the damage if possible The owner must provide reasonable evidence that the damage did not occur after delivery Repair Notify the appropr...

Page 16: ...lugs Ground connection s BAS wiring optional Control voltage wiring Chilled water pump contactor and wiring Option relays and wiring Water piping Flow switch Taps for thermometers and gauges Thermomet...

Page 17: ...095 7754 18975 8607 19250 8732 300 17965 8149 18265 8285 20121 9127 20421 9263 InvisiSound Ultimate 150 12133 5504 12279 5570 14292 6483 14438 6549 165 13177 5977 13333 6048 15332 6955 15488 7025 180...

Page 18: ...o ot te es s 1 A full 40 clearance is required in front of the control panel Must be measured from front of panel not end of unit base 2 Clearance of 85 on the side of the unit is required for coil re...

Page 19: ...AC SVX001A EN 19 Unit Dimensions Figure 4 Unit dimensions standard length D Di im me en ns si io on ns s a an nd d W We ei ig gh ht ts s...

Page 20: ...75 8 7005 5 328 6 8347 5 328 6 8347 5 381 5 9689 5 434 3 11031 5 M 228 9 5813 0 281 7 7155 0 281 7 7155 0 334 5 8497 0 334 5 8497 0 387 4 9839 0 440 2 11181 0 N 20 4 519 5 20 4 519 5 19 6 497 5 19 6 4...

Page 21: ...AC SVX001A EN 21 Figure 5 Unit dimensions extended length D Di im me en ns si io on ns s a an nd d W We ei ig gh ht ts s...

Page 22: ...5 328 6 8347 5 381 5 9689 5 381 5 9689 5 434 3 11031 5 487 1 12373 5 M 281 7 7155 0 334 5 8497 0 334 5 8497 0 387 4 9839 0 387 4 9839 0 440 2 11181 0 493 0 12523 0 N 20 4 519 5 20 4 519 5 19 6 497 5 1...

Page 23: ...s se ed d t to o l li if ft t t th he e u un ni it t m mu us st t b be e c ca ap pa ab bl le e o of f s su up pp po or rt ti in ng g t th he e e en nt ti ir re e w we ei ig gh ht t o of f t th he e u...

Page 24: ...c ch hi il ll le er r I Im mp po or rt ta an nt t See unit nameplate and or unit submittal for total shipping weight See following figures for unit lifting configuration See Dimensions and Weights cha...

Page 25: ...location 6 located on other side of unit Control Panel Figure 9 8 point lift configuration 300 ton units 96 2438mm Spreader Bar Qty 2 Lifting Location 1 Lifting location 2 located on other side of uni...

Page 26: ...transmitted through water piping To reduce the sound transmitted through electrical conduit use flexible electrical conduit State and local codes on sound emissions should always be considered Since t...

Page 27: ...ting Locations Weights Isolators See figure below for mounting point location designations Figure 12 Mounting point locations top view 1 3 5 7 Control panel 9 2 4 6 8 10 N No ot te e Quantity of isola...

Page 28: ...ize Point Weight kg 1 2 3 4 5 6 7 8 9 10 Standard Length Units 150 824 730 753 670 688 719 332 423 165 794 775 775 749 791 802 427 499 180 804 797 790 781 808 836 432 510 200 806 827 791 749 777 770 6...

Page 29: ...20 2090 708 802 Table 10 Point weights units with InvisiSound ultimate option SI kg Unit Size Point Weight kg 1 2 3 4 5 6 7 8 9 10 Standard Length Units 150 824 730 844 761 778 810 332 423 165 794 775...

Page 30: ...Black 64 Black 64 Brown 61 Brown 61 Compressor Mounting Bolt Removal U Un ni it ts s w wi it th h I In nv vi is si iS So ou un nd d U Ul lt ti im ma at te e O Op pt ti io on n M Mo od de el l N Nu um...

Page 31: ...ty y f fo or r e eq qu ui ip pm me en nt t f fa ai il lu ur re es s w wh hi ic ch h r re es su ul lt t f fr ro om m u un nt tr re ea at te ed d o or r i im mp pr ro op pe er rl ly y t tr re ea at te e...

Page 32: ...that the evaporator can be isolated for service Evaporator Piping Components Piping components include all devices and controls used to provide proper water system operation and unit operating safety...

Page 33: ...a a 2 24 4V V c ci ir rc cu ui it t D Do o N NO OT T a ap pp pl ly y 1 12 20 0V V t to o t th he e f fl lo ow w s sw wi it tc ch h The flow switch is factory installed and programmed based on the oper...

Page 34: ...200 400 600 800 1000 1200 1400 Pressure Drop ft H2O Water Flow GPM 300T 275T 250T 225T 200T 185T 165T 150T Figure 18 Evaporator waterside pressure drop curve 3 pass 0 5 10 15 20 25 30 35 40 45 50 55 6...

Page 35: ...ntroller This option will NOT protect the evaporator in the event of a power failure to the chiller unless backup power is supplied to the necessary components When no chiller operation is possible an...

Page 36: ...o of f t th he e i in ns st ta al ll li in ng g c co on nt tr ra ac ct to or r a an nd d o or r t th he e c cu us st to om me er r t to o e en ns su ur re e t th ha at t a a p pu um mp p w wi il ll l...

Page 37: ...Minimum Recommended LWTC F Glycol Percentage Solution Freeze Point F Minimum Recommended LERTC F Minimum Recommended LWTC F 0 32 28 6 35 0 32 28 6 35 2 31 27 6 34 2 31 27 6 34 4 29 7 26 3 32 7 4 29 9...

Page 38: ...Dr ri iv ve e C Ca ap pa ac ci it ty y D Di is sc ch ha ar rg ge e s se ec ct ti io on n a an nd d P PR RO OD D S SV VB B0 06 6 E EN N W WA AR RN NI IN NG G H Ha az za ar rd do ou us s V Vo ol lt ta a...

Page 39: ...o ou ul ld d r re es su ul lt t i in n e eq qu ui ip pm me en nt t d da am ma ag ge e a as s t th he e e eq qu ui ip pm me en nt t w wa as s n no ot t d de es si ig gn ne ed d o or r q qu ua al li if...

Page 40: ...a ar re e d di is sc ch ha ar rg ge ed d 0 0 V VD DC C b be ef fo or re e t to ou uc ch hi in ng g a an ny y i in nt te er rn na al l c co om mp po on ne en nt ts s F Fo or r a ad dd di it ti io on n...

Page 41: ...ing conduits The wiring is passed through these conduits and connected to the terminal blocks optional unit mounted disconnects or HACR type breakers The high voltage field provided connections are ma...

Page 42: ...ay ys s b be e r ru un nn ni in ng g w wh he en n c ca al ll le ed d u up po on n b by y t th he e c ch hi il ll le er r c co on nt tr ro ol ls s An evaporator water pump output relay s normally open...

Page 43: ...the Compressors on Circuit Alarm Ckt 2 This output is true whenever there is any active latching or non latching shutdown diagnostic that targets Circuit 2 or any of the Compressors on Circuit 2 Tabl...

Page 44: ...ustomer specified or installed contact closure for individual inhibition of the operation of either or both circuits If the contact 5K32 for Ckt1 or 5K33 for Ckt2 is closed the respective refrigerant...

Page 45: ...value back to the main processor This will generate an informational diagnostic and the unit will default to using the ront Panel TD7 Chilled Water Setpoint Tracer TU Service Tool is used to set the i...

Page 46: ...er re e CWS is the new chilled water set point or the reset CWS CWS is the active chilled water set point before any reset has occurred e g normally Front Panel Tracer or ECWS RESET RATIO is a user a...

Page 47: ...functionality between a LonTalk compatible device and the chiller The inputs outputs include both mandatory and optional network variables as established by the LONMARK Functional Chiller Profile 8040...

Page 48: ...an electronic expansion valve states 3b to 4 Refrigerant R 134a The Ascend ACRA chiller uses environmentally friendly R 134a Trane believes responsible refrigerant practices are important to the envi...

Page 49: ...d in accordance with the ASME Boiler and Pressure Vessel Code for a refrigerant side working pressure of 200 psig The evaporator is designed for a water side working pressure of 150 psig Standard wate...

Page 50: ...r UC800 Controller Tracer AdaptiView TD7 Operator Interface UC800 Specifications Wiring and Port Descriptions The following figure illustrates the UC800 controller ports LEDs rotary switches and wirin...

Page 51: ...k 9 USB device Type B connection for the service tool Tracer TU 10 The Ethernet connection can only be used with the Tracer AdaptiView display 11 USB Host not used Communication Interfaces There are f...

Page 52: ...n at the data transfer rate when the UC800 transfers data to other devices on the link The RX LED blinks yellow at the data transfer rate when the UC800 receives data from other devices on the link Et...

Page 53: ...lar areas for each chiller component Touching any touch target displays a screen containing more chiller status information related to each component Figure 28 Home screen Table 18 Home screen items D...

Page 54: ...d input or Tracer This allows time for the external system load to switchover from an ice bank to the chilled water loop and provides for a controlled pull down of the loop s warmer temperature This m...

Page 55: ...run past the shutdown of the compressors executing the pump off delay timer Various These submodes may be displayed in most of the top level chiller modes Manual Evap orator Water Pump Override The Ev...

Page 56: ...load point without regard to the leaving water temperature control to prevent tripping on high compressor discharge temperature Establishing Min Cap Low Vi Min Speed The compressor is being forced to...

Page 57: ...ve data that refreshes every 2 5 seconds Viewing the Reports Screen Click the Reports button in the main menu area to view the Reports screen The Reports screen contains the following buttons to acces...

Page 58: ...e XXX X PSIA kPa Evaporator Saturated Rfgt Temp X X F C Evaporator Refrigerant Liquid Level X XX in mm Figure 34 Report condenser screen Table 22 Report condenser screen items Description Resolution U...

Page 59: ...Units Starter Input Voltage AB XXX X V Starter Input Voltage BC XXX X V Starter Input Voltage CA XXX X V Average Motor Current X X A Average Phase Voltage XXX X V Frequency Command XX X Hz Equipment...

Page 60: ...s out of range an error dialog will appear when the S Sa av ve e button is selected Keypads that allow negative numbers have positive and negative number keys Figure 40 Changed chilled water setpoint...

Page 61: ...of the Settings screen as shown in Missing cross reference text Included are the following Display Preferences Language Date and Time Clean Display Viewing and Changing Display Preferences On the Set...

Page 62: ...ick the highlighted button a second time to access the keypad Figure 44 Date and time settings screen Cleaning the Display On the Settings screen click C Cl le ea an n D Di is sp pl la ay y The TD7 is...

Page 63: ...ogged in Click D Di is sa ab bl le e button then click S Sa av ve e Figure 47 Security screen disable To e en na ab bl le e security On Settings screen click S Se ec cu ur ri it ty y button The Settin...

Page 64: ...ification Only the defective device is replaced Tracer TU can communicate with individual devices or groups of devices All chiller status machine configuration settings customizable limits and up to 1...

Page 65: ...ck Sheet chapter I Im mp po or rt ta an nt t Start up must be performed by Trane or an agent of Trane specifically authorized to perform start up and warranty of Trane products Contractor shall provid...

Page 66: ...tinue 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...

Page 67: ...o or r D Do o n no ot t l le ea av ve e o oi il l l li in ne e s sh hu ut t o of ff f v va al lv ve e o or r t th he e i is so ol la at ti io on n v va al lv ve es s c cl lo os se ed d o on n u un ni...

Page 68: ...evel operating mode as it would be viewed in the Tracer AdaptiView The shading color of the cylinder indicates the software state Text in parentheses indicates sub mode text as viewed in the Tracer Ad...

Page 69: ...leston ne e eD M M e M M s M Mi ic l le e e ei s s p s st tt o o p p i o oo n nn e e 1 1 12 2 2 2 2 2 2 11 1 1 2012 M M e e e eD D D D i i D D D De e e e l e e e e e e e e e es s s ss s s s s s sc c c...

Page 70: ...12 2012 12 11 2012 Confirm Evaporator W ater Flow W ithin 20 m inutes 6 Second Filter Oil Heaters Always Energized when Com pressor is De energized 6 1 14 4 4 2 2 20 W 1 W2 a 7 7 3 3 3 2 2 20 E E 12 f...

Page 71: ...a 7 3 2 2012 E E asdf EXV rem ains closed W ait for Need To Cool Diff to Start 9 9 9 9 9 9 2 2 2 2 2 2 2 20 0 0 0 01 1 1 12 2 2 2 1 1 1 10 0 0 0 0 2 2 2 2 2 2 2 20 0 0 0 01 1 1 12 2 2 2 Auto 9 3 2 20...

Page 72: ...peed for Capacity Control Modulate Com pressor Speed for Capacity Control 6 6 6 6 1 1 1 12 2 2 2 2 2 2 20 0 0 01 1 1 12 2 2 2 7 7 7 7 2 2 2 24 4 4 4 2 2 2 20 0 0 01 1 1 12 2 2 2 Running 6 13 2012 7 7...

Page 73: ...Control 6 6 6 6 6 1 1 1 1 12 2 2 2 2 2 2 2 2 20 0 0 0 01 1 1 1 12 2 2 2 2 7 7 7 7 7 2 2 2 2 24 4 4 4 4 2 2 2 2 20 0 0 0 01 1 1 1 12 2 2 2 2 Running 6 13 2012 7 7 7 7 7 2 2 2 2 2 2 2 2 2 2 23 3 3 3 3...

Page 74: ...um pdown 0 Seconds to 2 Minutes Fully Close EXV Perform Operational Pum pdown for Last Circuit if Required Send Stop Com m and To Com pressor IF No Pum pdown Required Pum pdown Required Turn Off Last...

Page 75: ...5 5 5 2 2 2 2 20 0 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 12 2 2 2 2 2 2 2 2 No Pum pdown Required Pum pdown Required Evaporator Pum p Off Delay Adjustable 1 to 30 Minutes Send Stop Com m and to All Running...

Page 76: ...ate Shutdown Run Inhibit or Stopped Com pressor Deceleration Tim e De Energize Evaporator W ater Pum p Relay 2 2 2 29 9 9 9 2 2 2 20 0 0 01 1 1 12 2 2 2 1 1 1 12 2 2 2 1 1 1 11 1 1 1 2 2 2 20 0 0 01 1...

Page 77: ...nore Softloading and Set CLS 100 Energize Ice Building Relay Enforce All Lim its and Running Mode Diagnostics Head Relief Request Relay Delay 1 to 60 m ins adj Evap Leaving W ater Tem p Rises Above th...

Page 78: ...gize Heaters Enforce All Non Running Mode Diagnostics will return to Auto and norm al cooling m ode with rem oval of Ice Com m and Stage and m odulate all com pressors in sequence to full load if not...

Page 79: ...o d da am ma ag ge e o or r l lo oo os se en n m mo ot to or r t te er rm mi in na al ls s W WA AR RN NI IN NG G H Ha az za ar rd do ou us s V Vo ol lt ta ag ge e w w C Ca ap pa ac ci it to or rs s F...

Page 80: ...gerant 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 shou...

Page 81: ...ze in Nominal Oil Charge Height in 150 to 200 10 9 0 225 to 300 12 8 5 Figure 62 Nominal oil level Nominal oil level 10 in oil sep 9 0 in 12 in oil sep 8 5 in To Oil Separator Service Valve Drive Cool...

Page 82: ...control panel See figure below for fluid levels under various temperature conditions If levels levels are low contact your local Trane office Figure 64 Drive cooling expansion tank fill A B C Max Fill...

Page 83: ...t a as s r re eq qu ui ir re ed d F Fo or r p pe er rs so on na al l s sa af fe et ty y r re ef fe er r t to o t th he e c cl le ea an ni in ng g a ag ge en nt t m ma an nu uf fa ac ct tu ur re er r s...

Page 84: ...set Latched or can be either manually or automatically reset when and if the condition returns to normal Nonlatched A Ac ct ti iv ve e M Mo od de es s I In na ac ct ti iv ve e M Mo od de es s States t...

Page 85: ...stimate Error Local AFD 2A Loss Of Motor Control Circuit Immediate NonLatch All AFD generated faults that can occur due to external power anomalies or abnormal motor loading that could be a transient...

Page 86: ...ver Tracer TU and refer to drive programming manual to determine which phases are indicated Local AFD 1A Comm Loss Main Processor Circuit Immediate decel Latch All The AFD detected a continual loss of...

Page 87: ...rocessor Diagnostics Table 27 Diagnostics main processor Diagnostic Name Affects Target Severity Persistence Active Modes Inactive Modes Criteria Reset Level Drive Cooling Temp Sensor Ckt2 Circuit Nor...

Page 88: ...rge Rfgt Temp Sensor Cprsr2A Circuit Immediate Latch All Bad Sensor or LLID Remote Drive Cooling Supply Temp Sensor Ckt1 Circuit Normal Latch All Bad Sensor or LLID Remote Emergency Stop Chiller Immed...

Page 89: ...her system problems Note that either entering or leaving water temp sensor or the water system could be at fault Remote Evaporator Approach Error Ckt1 Circuit Immediate Latch Respective circuit runnin...

Page 90: ...el of priority e g Front Panel SetPoint Remote Failure to Arm or Hold AFD 1A Circuit Info Nonlatch All AFD 1A controlling Compressor 1A failed to respond in an appropriate time with its status of Arme...

Page 91: ...d 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 Fl...

Page 92: ...ild rev 2 13 and later 22 sec min 27sec max On detection and until the controller is manually reset this diagnostic shall be active and the alarm relay shall be energized the Evap Pump Output will be...

Page 93: ...grees F for more than 4878 degree F seconds At circuit startup the Discharge Superheat will be ignored for 5 minutes Remote Low Drive Cooling Supply Temp Ckt1 Circuit Info NonLatch All Ckt Running Mod...

Page 94: ...mmediate Latch All Ckt Running Modes Service Pumpdown The warmer of either the Evaporator Refrigerant Pool Temperature or the Evaporator Saturated Temperature for the respective circuit dropped below...

Page 95: ...ompressors running Energize Freeze Avoidance Request Relay and Evap Water Pump Relay until diagnostic auto resets then de energize the Freeze Avoidance Request Relay and return to normal evap pump con...

Page 96: ...mperature sensors are seen to be out of their normal range Severity is adjustable via TU Service Tool default is Info Local MP Application Memory CRC Error Chiller Immediate Latch All Modes Memory err...

Page 97: ...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...

Page 98: ...rent value for the cumulative starts and or hours for the given compressor have been modified by a write override from TU NA Starts or Hours Modified Cprsr2A None Info NonLatch All The current value f...

Page 99: ...on 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 exce...

Page 100: ...unication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss Drive Cooling BP Valve Ckt1 Circuit Normal Latch All Continual loss of communication between the MP...

Page 101: ...d 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 making CHW reset so it must cause a unit shutdown even if Ice or...

Page 102: ...lding Command 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 normal non ice b...

Page 103: ...ommunication between the MP and the Functional ID has occurred for a 30 second period Remote Comm Loss Outdoor Air Temperature Chiller Normal Shutdown Latch All Continual loss of communication between...

Page 104: ...r Description 2311 4803 Sheet 1 Schematic Wiring Devices Descriptions Locations Notes Sheet 2 Adaptive Frequency Drive Circuit 1 Sheet 3 Adaptive Frequency Drive Circuit 2 Sheet 4 Condenser Fans Circu...

Page 105: ...on before 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 num...

Page 106: ...r Lack of pressure could indicate a system leak When charging in the factory approximately 95 of the refrigerant charge is isolated in the evaporator and the other 5 is contained in the condenser and...

Page 107: ...vac and charge unit 11 O Ow wn ne er r A Aw wa ar re en ne es ss s Does the owner have a copy of the MSDS for refrigerant N No ot te e Additional time required to properly complete the start up and co...

Page 108: ...Tank Liquid Level in EXV Open Ckt 2 Saturated Refrigerant Temperature F Refrigerant Pressure psia Approach Temperature F Water Flow Status Spillover Tank Liquid Level in EXV Open CONDENSER Outdoor Air...

Page 109: ...Volts AFD Input Power kW AFD Output Power kW AFD Speed rpm COMPRESSOR 2A Running Status Starts Running Time Hr Min Oil Pressure psia MOTOR 2A Active Demand Limit Setpoint Average Motor Current Percen...

Page 110: ...110 AC SVX001A EN N No ot te es s...

Page 111: ...AC SVX001A EN 111 N No ot te es s...

Page 112: ...transport and protect food and perishables and increase industrial productivity and efficiency We are a global business committed to a world of sustainable progress and enduring results ingersollrand...

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Summary of Contents for Ascend ACR Series

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Trane Ascend ACR Series, Installation, Operation And Maintenance Manual, Page: 4 / 112

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Summary of Contents for Ascend ACR Series

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