Trane CenTraVac 2100 Troubleshooting guide

'I'IIAIIE
Operation
Maintenance
Ubrary
Product Section
Product
Model
literature Type
Sequence
Date
File No.
Supersedes
Duplex Water-Cooled
Hermetic Stage CenTraVac®
CDHF 60 Hz Models 2100 -2500 - 2 Stage
CDHG 50 HZ Models 2150 -3 Stage
Coollng-Only
Dlrect-Drlve with UCP2 Control Panels
Design Sequence AO
r--
-h
cDHF-OM-1
Service Literature
Refrigeration
Centrifugal LiquidChillers
CDHF
Operation/Maintenance
CDHF-OM-1
March
6,1997
SV-RF-CTV-CDHF-OM-1-397
New
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Page 1 of 58
PETITIONER EXHIBIT 1019

Table of Contents
Subject Page
Product Coding Definition 3
Introduction 3
Typical Product Description Block 3
CDHF Product Coding Explanation 3
Control Options 5
Unit Options 6
Starter Options 6
General Information 8
About this Manual 8
Product Description Block 8
Commonly Used Acronyms 8
WaminQs and Cautions 8
Unit Nameplate 8
Metric Conversion 8
Mechanical Operation -CDHF 9
Overview 9
CoolinQ-Only Cycle 9
Lubrication System 9
Oil Recovery System
13
MotorCooling System 13
Chiller Control System 15
Unit Control Panel
15
Electrical Seguence of Operation 16
Overview
16
Chilled and CondenserWater Flow Interlock Circuits 16
UCP2 and 'Wye-Delta" Starter Control Circuits 16
Duplex Chiller Loading Sequence 17
Duplex Unit UCP2 Displays and DiaQnostic Description 18
Chiller Report Settings 18
Operator SettinQs 18
Service Settings 18
Diagnostic Description
18
Vane Actuator Control
20
Circuit Breaker 1CB3 Oil Pump
20
Unit Start-Up Procedures
20
Dailv Unit Start-Up 20
Seasonal Unit Start-Up
21
Unit Shutdown Proc.edures
22
Daily Unit Shutdown 22
Seasonal Unit Shutdown
22
Trouble Analysis
22
Periodic Maintenance 23
Overview
23
Daily Maintenance and Checks
23
Weekly Maintenance 24
Every 3 Months 24
Every 6 Months 24
Off-Season Maintenance 24
Annual Maintenance
24
Compressor Oil Change 24
Oil ChanQe Procedure 24
Replacing Oil Filter 25
Oil Filter Re~lacement Procedure 25
Refrigerant Charge 25
Recovery/Recycle Connections 28
Leak Testing 28
CAmerican Standard 1997 2 CDHF-OM-1
Page 2 of 58
PETITIONER EXHIBIT 1019

Table of Contents
Subject Page
Cleaning the Condenser 28
Cleaning the Evaporator 28
Control Settings and Adiustments
28
Purge System 28
UCP2 "Settings Group" Menu Record 32
Operator Settings Group
32
Service Settings GrouD 34
Refrigerant Monitor Settings 39
Machine Configuration GrouD
41
Refriaerant Monitor Calibration Group 44
Service Tests 45
Periodic Maintenance: Annual Inspection Check List
and Report: CenTraVacs® w/UCP2 Control Panels
47
CenTraVac® with UCP2 Commissioning Checklist
&Start-Up Test Log 48
Start-Up TestLog: Water Cool CenTraVac®
With UCP2 Control Panel 54
CenTraVac® Checksheetand Request for Serviceman
56
Fi1lure and Table Index
Figure 1 "Illustrates the General Component Layout ofa Typical CDHF Chiller"
10
Figure 2 "CDHF Pressure/Enthalpy Curve"
11
Figure 3
"CDHF Compressor Lubrication System"
12
Fiaure 4 "Motor Cooling
and Oil Reclaim" 14
Figure 5 "Control Panel Layouf' 15
FiQure 6 "Rotary Valve
in Drain Position"
26
Figure 7 "Drum
Bung Fitting with Quick Connect Coupling"
27
-
Figure 8 "Chemical Cleaning Setup"
29
Table 1 "Diagnostics that
relate to the DUDlex Unit'
19
Table 2 "Normal Chiller Operating Characteristics"
23
Table 3 "Unit Time Delays
and Safety Control Cutout Settings for UCP2"
30
28
CDHF-OM-1
Page 3 of 58
PETITIONER EXHIBIT 1019

''-"' Introduction
The CDHF/CDHG is defined using
the productdefinition and selection
(POS) system. This system
describes the product offerings in
terms of a productcoding block
which is made up of feature
categories and feature codes.
Typical Product
Description Block
MODlCDHF
EVWA
EVWCSTD CDBS2500
EVCOFlNG NTON25oo
OSEQAO CDWC 150
CDHF/CDHG Product
Coding Explanation
ProductCoding
Definition
The operating components and 258
options for any Model CDHF/CDHG 259
CenTraVaC® unit can be identified 260
by referring to the alpha-numeric 261
product identification coding block 262
located on the nameplate forthe 263
unit. The coding block precisely 264
identifies all characteristics of a unit. 265
CDCOFlNG
PURGHERM
SRT1 RPIR
VOLT 460
EVBS2500
EVWC 150
HGBPW/O
266
267
268
269
270
271
272
Unit Type 273
SNGl =Single Condenser 274
(Cooling Only) 275
MODL 276
Unit Model TYPO 277
CDHF =CenTraVac Direct Drive Unit Type 278
Duplex Hermetic - 2 Stage STD = Standard Shells 279
COHF Development Sequence "pi 280
Unit Hertz =60 Hertz Note: Be sure to refer to H!e service 281
CDHG = CenTraVac Direct Drive model number when ordenng
Duplex Hermetic - 3 Stage replacement parts orrequesting 282
CDHG Development Sequence "G" service. An example of a typical 283
Unit Hertz = 50 Hertz product code is gIVen on this page. 284
DSEQ
Design Sequence - "AO"
Factory Assigned
NTON
Compressor Nominal Capacity
2100 =2100 Nominal Tons
2500 = 2500 Nominal Tons
2150 =2150 Nominal Tons
VOLT
Nota: Unit-mounted starters are
identified by a separate number
found on the starter.
CPM1
Compressor Motor Power
LH Circuit
285
286
287
288
289
290
291
292
293
CPM2
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
UnitVoltage
380 = 380 Volt 60 3 Phase
440 = 440 Volt 60 3 Phase
460 =460 Volt 60 3 Phase
480 =480 Volt60 3 Phase
575 =575 Volt60 3 Phase
600 =600 Volt60 3 Phase
2300 = 2300 Volt 60 3 Phase
2400 = 2400 Volt 60 3 Phase
3300 = 3300 Volt 60 3 Phase
4160 = 4160 Volt 60 3 Phase
6600 =6600 Volt 60 3 Phase
380A =380 Volt 50 3 Phase
400 = 400 Volt 50 3 Phase
415 =415 Volt50 3 Phase
330A =3300 Volt 50 3 Phase
6000A =6000 Volt 50 3 Phase
660A =6600 Volt 50 3 Phase
588 KW60 Hz
653 KW60 Hz
745 KW60 Hz
856 KW60 Hz
957 KW60 Hz
1062 KW60 Hz
1228 KW60 Hz
433 KW50 Hz
489 KW50 Hz
548 KW50 Hz
621 KW50 Hz
716 KW50 Hz
799 KW50 Hz
892 KW50 Hz
CompressorMotorPower
RH Circuit
CPD1
Compressor Impeller
Diameter L.H. Circuit
255 294
256 295
257 296
3
588 KW60 Hz
653KW60Hz
745KW60Hz
856KW60Hz
957 KW60 Hz
1062 KW60 Hz
1228 KW60 Hz
433 KW50 Hz
489 KW50 Hz
548 KW50 Hz
621 KW50 Hz
716 KW50 HZ
799 KW50 Hz
892 KW50 Hz
CDHF-OM-1
Page 4 of 58
PETITIONER EXHIBIT 1019

Product Coding
Definition
CPD2 EVWC coco
Compressor Impeller Evaporator Waterbox Condenser Waterbox
DiameterRH Circuit 150 PSIG 1 Pass Marine Connection
255 294 300 PSIG 1 Pass Marine VICT=
Victaulic
256 295 FLNG =
Flanged
258 296 EVCO
259 298
Evaporator Waterbox CDWA
Connection
Condenser Waterbox
260 299 VICT=Victaulic
Arrangement
261
300 FLNG =Flanged LFRF =Inlet -LH Front
263
301
LFRF =Outlet - RH Front
264 303 EVWA
265 304
Evaporator Waterbox
RFLF =Inlet -RH Front
266 305
Arrangement
RFLF =Outlet - LH Front
268 306 LFRF =Inlet-
LH Front
269 308 LFRF =Outlet -RH Front LRRR =Inlet -LH Rear
270 309 LRRR =Outlet -
RH Rear
RFLF =Inlet -
RH Front
271
310 RFLF =Outlet -LH Front RRLR =Inlet -RH Rear
273
311
RRLR =Outlet- LH Rear
274 313 LRRR =Inlet -
LH Rear
275 314 LRRR =Outlet -RH Rear LTRT =Inlet -L.H. Top
276 315 L
TRT =Outlet- RH Top
278 316 RRLR =Inlet-RH Rear
279 318 RRLR =Outlet -
LH Rear RTLT =Inlet -RH Top
280 319 RTLT =Outlet -LH Top
281
320 LFRR =Inlet-
LH Front
LFRR =Outlet-RH Rear LBRB =Inlet -LH Bottom
283
321
LBRB =Outlet - RH Bottom
284 323 RFLR =Inlet-
RH Front
285 324 RFLR =Outlet -LH Rear RBLB =Inlet -RH Bottom
286 325 RBLB =Outlet -
LH Bottom
288 326 LRRF =Inlet-
LH Rear
289 328 LRRF =Outlet -
RH Front LFRR =Inlet -LH Front
290 329 LFRR =Outlet -
RH Rear
291 330 RRLF =Inlet-
LH Rear
RRLF =Outlet -
LH Front LFRT =Inlet -LH Front
293 LFRT =Outlet -
RH Top
EVBS CDBS
Condenser Tube Bundle Size LFRB =Inlet -LH Front
EvaporatorTube
Bundle Size 2100 Nominal Ton
Condo
LFRB =Outlet -RH Bottom
2100 Nominal Ton Evap. 2300 Nominal Ton
Condo
2300 Nominal Ton Evap. 2500 Nominal Ton
Condo
RFLR =Inlet -RH Front
2500 Nominal Ton Evap. RFLR =Outlet -LH Rear
EVTB CDTB
Condenser Tubes
RFLT =Inlet -RH Front
Evaporator Tubes
TE28 .028 Wall liE CopperTube RFLT =Outlet -LH Top
TE28 .028 Wall liE CopperTube TE35 .035 Wall liE CopperTube
TE35 .035 Wall liE CopperTube SB28 .028 Wall SIB CopperTube RFLB =Inlet -RH Front
SB28 .028 Wall SIB CopperTube SB35 .035 Wall SIB CopprTube RFLB =Outlet-
LH Bottom
SB35 .035 Wall SIB CopprTube
EFLD CFLD LRRF = Inlet -LH Rear
Evaporator Fluid Type
Condenser Fluid Type LRRF = Outlet- RH Front
WATE=Water
WATE = Water CLCA = Calcium Chloride LRRT = Inlet -LH Rear
CLCA = Calcium Chloride
EG = Ethylene G~COI
LRRT = Outlet - RH Top
EG = Ethylene Glycol
PG =Propylene Iyeol
PG =Propylene Glycol LRRB = Inlet -LH Rear
CDWC LRRB =Outlet - RH Bottom
Condenser Waterboxs
150 PSIG 1 Pass Marine RRLF = Inlet -
L. H. Rear
300 PSIG 1 Pass Marine RRLF = Outlet-LH Front
4 CDHF-OM-1
Page 5 of 58
PETITIONER EXHIBIT 1019

Product Coding
Definition
~
RRLB = Inlet-RH Rear 800= 800 Nominal Ton Orifice RCLM
RRLB = Outlet -LH Bottom
880= 880 Nominal Ton Orifice
Remote Clear Language Panel
990 = 990 Nominal Ton Orifice RCLP = Remote Clear Language
LTRF = Inlet-LH
TO~
1000 = 1000 Nominal Ton Orifice RHIN = Remote Clear Language
LTRF = Outlet -RH ront 1100 = 1100 Nominal Ton Orifice Interface
1120= 1120 Nominal Ton Orifice RCLB = Remote Clear Language
LTRR = Inlet -LH Top 1600 = 1600 Nominal Ton Orifice Display
LTRR = Outlet - RH Rear 1660 = 1660 Nominal Ton Orifice
1810 = 1810 Nominal Ton Orifice
WPSR
LTRB = Inlet -LH Top 1970 = 1970 Nominal Ton Orifice
Chilled Tower Water Flow Display
LTRB = Outlet -RH Bottom 2150 = 2150 Nominal Ton Orifice WFCH = Water Pressure Sensors
RTLF = Inlet - RH Top AGLT
>150 PSI
WFCL = Water Pressure Sensors
RTLF = Outlet -LH Front Agency Listing
<150 PSI
None = No Agency Listing
RTLR = Inlet -RH Top UL = U.L. Listed TRMM
RTLR = Outlet -LH Rear CSA = C.S.A. Certification
CLCA = California Code includes
Tracer Interface Module
RTLB = Inlet-RH Top U.L. Listing TRMI = Tracer 100 Interface
RTLB = Outlet -LH Bottom TRMS = TracerSummit Interface
Test
LBRF = Inlet-LH Bottom
Facto~ Performance Test
BRTS
LBRF = Outlet -RH Front Air = Air Run and Vibration
Bearing 011 Temperature Sensors
CWTR = CustomerWitness YES = Bearing Oil Temperature
LBRR = Inlet -LH Bottom CWT1 = CustomerWitness!
LBRR = Outlet - RH Rear 1 Part Load
CLCT
CWT2 = CustomerWitness!
Condenser Limit Controls
LBRT = Inlet-LH Bottom 2 Part Load YES = Condenser Limit Controls
LBRT = Outlet -RH Top CWT3 = CustomerWitness!
3 Part Load
CWR
RBLF = Inlet- RH Bottom CWTS = CustomerWitness!
RBLF = Outlet -LH Front with Sound
Chilled Water Reset Ambient
'-"
CWS1 = CustomerWitness! YES = Chilled Water Reset Ambient
RBLR = Inlet -RH Bottom Sound Part 1 Load
RBLR = Outlet -LH Rear CWS2 = CustomerWitness!
Sound Part 2 Load
RBLT = Inlet-RH Bottom CWS3 = CustomerWitness!
RBLT = Outlet -LH Top Sound Part 3 Load
PTR = Performance Only!
ORC1 with Report
Orifice Size - LH Circuit PTR1 = Performance Only!
710 = 710 Nominal Ton Orifice 1 Part Load
790 = 790 Nominal Ton Orifice PTR2 = Performance Only!
800 = 800 Nominal Ton Orifice 2 Part Load
880 = 880 Nominal Ton Orifice PTR3 = Performance Only
900 = 900 Nominal Ton Orifice 3 Part Load
990 = 990 Nominal Ton Orifice PTRS =Performance only!
1000 = 1000 Nominal Ton Orifice with Sound
1100 = 1100 Nominal Ton Orifice PRS1 = Performance only!
1120 = 1120 Nominal Ton Orifice Sound 1 Part Load
1250 = 1250 Nominal Ton Orifice PRS2 = Performance only!
1265 = 1265 Nominal Ton Orifice Sound 2 Part Load
1400 = 1400 Nominal Ton Orifice PRS3 = Perfomace only!
1540 =1540 Nominal Ton Orifice Sound 3 Part Load
1600 = 1600Nominal Ton Orifice
Control Options
1660 =1660 Nominal Ton Orifice
1810 =1810 Nominal Ton Orifice OPTM
1970 =1970 Nominal Ton Orifice
2150 = 2150 Nominal Ton Orifice
Options Module
YES =Option Module
ORC2
Orifice Size -RH Circuit
MONP
710 = 710 Nominal Ton Orifice
Monitoring packa~
"'-" 790 =790 Nominal Ton Orifice YES =Monitoring ackage
5 CDHF-OM-1
Page 6 of 58
PETITIONER EXHIBIT 1019

WVUO
Phase Voltage Senaol"8
YES =Phase Voltage
SenSOfS
DIST
Discha~e Temperature Sensor
YES =Discharge Temperature
Sensor
PNCH
Printer Interface Module
YES = Printer Interface Module
UMRM
Unit Mounted Refrigerant
Monitor
MNOR = w/o Scanner
MNSC =w/Scanner
MNAA =w/o Scanner & Alarm
MSAA =w/Scanner & Alarm
MNAF =w/o Scanner& Alarm
&1 Lite
MSAF =w/Scanner & Alarm
&1 Lite
MNAT= w/o Scanner & Alarm
&3 Lite
MSAT =w/Scanner & Alarm
& 3 Lite
UnitOptions
INSL
Unit Insulation
YES =Unit Insulation Package
ISLS
Spring 1s0lato1"8
YES = Spring Isolators
StarterOptions
SRT1
Starter Type-
RH Circuit
USTR = UnitMounted Star-Delta
USOL = Unit Mounted Solid State
RSTR =Remote Mounted
StarDelta
RSOL =Remote Mounted
Solid State
RXL =X-Line
Fu" Volt
RATR =Auto Transformer
RPI R =Primary Reactor
CSTR = Customer Supplied
Star-Delta
CSOL =CustomerSupplied
Solid State
CXL = X-Line Fu" Volt
CATR = Auto Transformer
CPIR = Primary Reactor
SRT2
StarterType -LH
Circuit
USTR =UnitMounted Star-Delta
USOL =UnitMounted Solid State
Product Coding
Definition
RSTR = Remote Mounted
Star-Delta
RSOL = Remote Mounted
Solid State
RXL =X-Line Fu" Volt
RATR =Auto Transformer
RPIR =Primary Reactor
CSTR =Customer Supplied
Star-Delta
CSOL =CustomerSupplied
Solid State
CXL=X-Line Fu" Volt
CA
TR =Auto Transformer
CPIR =Primary Reactor
SRL1
Starter Current Transformer -
LH Circuit
94 =94 Max Starter RLA
187 =187 Max Starter RLA
372 =372 Max Starter RLA
553 =553 Max Starter RLA
606 =606 Max Starter RLA
700 = 700 Max Starter RLA
810 = 810 Max Starter RLA
935 = 935 Max Starter RLA
1080= 1080 MaxStarter RLA
1212 =1212 Max StarterRLA
1215 =1215 MaxStarterRLA
1402 = 1402 MaxStarterRLA
1856 = 1856 MaxStarterRLA
SRL2
Starter Current Transformer -
RH Circuit
94 =94 MaxStarter RLA
187 = 187 MaxStarter RLA
372 =372 Max Starter RLA
553 =553 Max Starter RLA
606 =606 Max Starter RLA
700 =700 Max Starter RLA
810 =810 Max Starter RLA
935 =935 Max Starter RLA
1080 =1080 Max Starter RLA
1212 =1212 Max Starter RLA
1215 =1215 Max Starter RLA
1402 =1402 MaxStarter RLA
1856 =1856 Max Starter RLA
PNC2
Panel
Connection -LH Circuit
TERM =Terminal Block Connection
DISC = Disconnect Switch -
Non Fused
CB =Circuit Breaker
CBIC =Circuit Breaker High
Interrupt
CBHC =Circuit Breaker Higher
Interrupt
ICBCL =Circuit BreakerCurrent
Limiting
SSW = Isolation Switch
ISLB =Load Break Switch
SPC1
Panel Connection Maximum
RLA -RH Circuit
553 =553 Max Connection RLA
563 = 563 MaxConnection RLA
606 =606 MaxConnection RLA
640 =640 MaxConnection RLA
700 =700 MaxConnection RLA
935 =935 MaxConnection RLA
960 = 960 Max Connection RLA
1080 = 1080 MaxConnection RLA
1280 =1280 Max Connection RLA
1600 = 1600 Max Connection RLA
2000 =2000 MaxConnection RLA
SPC2
Panel Connection Maximum
RLA-LH
553 = 553
Max Connection RLA
563 = 563 MaxConnection RLA
606 =606 Max Connection RLA
640 =640 Max Connection RLA
700 =700 MaxConnection RLA
935 =935 Max Connection RLA
960 =960 MaxConnection RLA
1080 = 1080MaxConnection RLA
1280 =1280MaxConnection RLA
1600 = 1600MaxConnection RLA
2000 =2000 MaxConnection RLA
AGLS
Remote Mounted Starter
Agency Listing
None = No Agency Listing
PNC1 UL =
U.l. Listed
Panel Connection - RH Circuit CSA =C.S.A Certification
TERM =Terminal Block Connection CLCA =Califomia Code
DISC = Disconnect Switch -Includes
U.l. Listing
Non Fused
CB =Circuit Breaker
CBIC =Circuit Breaker High
Interrupt
CBHC = Circuit Breaker Higher
Interrupt
CBCL =Circuit Breaker Current
Timing
ISSW=Isolation SWitch
ISLB = Load Break SWitch
6 CDHF-OM-1
Page 7 of 58
PETITIONER EXHIBIT 1019

SFC1
Power Factor Correct
Capacltor- LH Circuit
75KVAR PFCC
80KVAR PFCC
90KVAR PFCC
100 KVAR PFCC
120 KVAR PFCC
125 KVAR PFCC
150 KVAR PFCC
SFC2
Power Factor Correct
Capacltor- RH Circuit
75KVARPFCC
80KVAR
PFCC
90KVAR PFCC
100 KVAR PFCC
120 KVAR PFCC
125 KVAR PFCC
150 KVAR PFCC
DMPP
Digital Meter and
Protection Package
laDP = I.a. Data Plus II
lao = I.a. Data
SRLT
Surge Protector and
Lighting Arrester
YI:S = Surge Protector and
Lighting Arrester
FLSN
Flow SwItch ..
NEMA1
FS1 = 1 Flow SWitch 150 PSI
2FS1 = 2 Flow SWitchs 150 PSI
3FS1 = 3Flow SWitchs 150 PSI
FS2 = 1Flow Switch 300 PSI
2FS2 = 2 Flow Switchs 300 PSI
3FS2 = 3 Flow Switchs 300 PSI
FLSV
Flow Swltche.
Vapor
FS3 =1 Flow Switch 150 PSI
2FS3 = 2 Flow Switchs 150 PSI
3FS3 = 3 Flow Switchs 150 PSI
FS4 = 1 Flow Switch 300 PSI
2FS4 = 2 Flow Switchs 300 PSI
3FS4 = 3 Flow Switchs 300 PSI
Product Coding
Definition
THRM
Thermometers
TME = 1Thermometer 10" extd.
well
2TME = 2 Thermometers 10" extd.
well
3TME = 3 Thermometers 10" extd.
well
TMS = 1Thermometer 10" extd.
well
2TMS = 2 Thermometers 10" extd.
well
3TMS = 3 Thermometers 10" extd.
well
TlMR
Timer
1 TR5 = 1 TR5 Timer
2
TR5 =2 TR5 Timers
3
TR5 = 3 TR5 Timers
SRMT
Control Meters
CTRB =Volt and Amp Meters
CTRV=Volt
CTRA =
Amp Meters
Performance
LCKW = LH Circuit Nameplate KW
RCKW= RH Circuit Nameplate KW
LCRA = LH Circuit Nameplate RLA
RCRA = RH Circuit Nameplate RLA
PTON =Tons of Refrigeration
PCKW = Performance KW
LRLA = LH Circuit Rated Load Amp
RRLA = RH Circuit Rated Load Amp
PTIE = Evap. Entering 'Mr. Temp.
PTOE = Evap Leaving 'Mr. Temp.
PGME = Evap. Gallons per Minute
PPDE = Evap. Pressure Drop
PFFE = Evap. Fouling Factor
ECON = Evap. Fluid Concentration
PTIC = Condo Entering wtr. Temp.
PTOC = Condo Leaving VVtr. Temp.
PGMC = Condo Gal. per Minute
PPDC = Condo Pressure Drop
PFFC = Cond. Fouling Factor
CCON = Condo Fluid Concentration
7
CDHF-OM-1
Page 8 of 58
PETITIONER EXHIBIT 1019

General Information
About this Manual BAS = Building Automation System Yourpersonal safety and the proper
LBU = La Crosse Business Unit operation of this machine depend
This manual desaibes proper
operation and maintenance
of CABS =Auxiliary Condenser upon the strict observance
of these
precautions.
Model CDHF CenTraVac® 60 Hz Tube-Bundle Size • Nit
and Model CDHG CenTraVac® COBS =Condenser Bundle Size Unit amep a e
50 Hz. chillers equipped with The CDHF unit nameplate is
microcomputer based controls CDSZ =Condenser Shell Size located on the left side of the left
systems. Throughout the manual CWR = Chilled Water Reset hand unitcontrol panel (UCP). A
reference is made to the CDHF. All typical unit nameplate is illustrated
operation and maintenance DCM =Duplex Control Module in the installation manual,
procedures desaibed forthe CDHF DTFL =Delta·T at Full Load (i.e., CDHF-IN-1. The following
apply also to the CDHG. the difference between information is provided on the
By carefully reviewing the entering and leaving chilled CDHF unit nameplate.
information in this manual and watertemperatures at
following the instructions given, the design load).
ownerl operator can successfully
operate and maintain a
CDHF/CDHG.
Diagnostic information is provided
at the end of this manual to allow
the operator to identify a number of
system malfunctions, should any
develop. (Ifmechanical problems
do occur, however, contacta
qualified service organization
to
ensure properdiagnosis and repair
of the unit.)
Product Description
Block
Trane 60 Hz. Model CDHF
Hermetic CenTraVac units are
defined by the productdefinition
and selection system (PDS). Each
unit is defined by the product
description block
which appears on
the unit nameplate. CDHF-IN-1
shows an example of a unit
nameplate.
Commonly Used
Acronyms
ASME =American Society of
Mechanical Engineers
ASHRAE =American Society of
Heating, Refrigerant
and Air Conditioning
Engineers
EVBS =Evaporator Bundle Size
EVSZ= Evaporator Shell Size
GPM =Gallons-per-Minute
HVAC = Heating, Ventilating, and
Air Conditioning
IE =Internally Enhanced Tubes
IPC = Interprocessor
Communication
PFCC = Power Factor Correction
Capacitor
PSID = Pounds-per-Square-lnch
(differential pressure)
PSIG = Pounds-per-Square-Inch
(gauge pressure)
UCP2 =Chiller Control Panel for
CenTraVacs
Wamings and Cautions
Notice thatWARNINGS and
CAUTIONS appear at appropriate
intervals throughout this manual.
WARNINGS are provided to alert
operators of potential hazards that
could result in personal injury or
death, while CAUTIONS are
designed to alert personnel
to
conditions that could result in
eqUipment damage.
8
-Unit Model and Size Descriptor
-Unit Serial Number
-Unit Electrical Requirements
-Correct Operating Charge and
Type
of Refrigerant.
-Unit Test Pressures and
Maximum Operating Pressures
-Unit Installation and Operation!
Maintenance manuals
-Product Desaiption Block
(Identifies all unit components
and unit"Design Sequence"
used to order literature and make
otherinquiries aboutthe unit).
Metric Conversion
The following conversions apply for
tabfes and charts in this manual,
In. x2.54 = em.
Ft. x 30.48 = em.
Lb. x .453 =kg.
CDHF-OM-1
Page 9 of 58
PETITIONER EXHIBIT 1019

Mechanical Operation -CDHF
Overview
The following description applies to
the Trane Model CDHF Centrifugal
Chiller only. Refer to the appro-
priate operation manual for refri-
geration cycle descriptions
of other
models.
Each CDHF unit is composed
of
basic components.
-The Evaporator
- 2 Stage Compressor (2 ea.)
-Water-Cooled Condenser
-Single-Stage Economizer (2 ea.)
-Related Interconnecting Piping
Important: The manual is written
describing a SINGLE REFRI-
GERATION CIRCUIT. Please note
that the Duplex has
1WO (2)
independentcircuits.
refrigerant from the gas), first-stage Lubrication System
variable inletguide vanes, and into
the first-stage impeller. The CDHF compressor lubrication
system, which supplies oil to the
Nota: Inlet guide vanes are compressor motor bearings, is
designed to modulate the flow
of illustrated in Figure 3.
gaseous refrigerant to meet system
capacity requirements; they also Oil is pumped from the oil tank (i.e.,
prerotate the gas allowing itto enter by a pump and motor located within
the impeller atan optimal angle that the tank) through an oil pressure-
maximizes efficiency at all regulating valve designed to
conditions. maintain a net oil pressure of 12 to
Compressed gas from the first-
stage impeller is discharged
through the second-stage variable
guide vanes and into the
second-stage impeller. Here, the
refrigerant gas is again
compressed, and then discharged
into the condenser.
18 psid. Itisthen filtered and sent
to the compressor motor bearings.
The oil filterassembly is equipped
with a single rotary valve to isolate
the filter during replacement.
From the bearings, the oil drains
backto the oil tank through return
lines.
Baffles within the condenser shell To ensure proper lubrication and
distribute the compressed prevent refrigerant from condensing
Figure 1 illustrates the general refrigerant gasevenly across the in the oil tank, a 750-watt heater
is
component layout of a typical CDHF condenser tube bundle. Cooling immersed in the oil tank. Operating
chiller. tower water, circulated through the in response to a signal from the
condensertubes, absorbs heatfrom UCP, this heaterenergizes as
The duplex unit has (2) CDHF the refrigerant, causing itto needed to maintain an oil tank tem-
compressors on independent condense. The liquid refrigerant perature of 140 to 145 F {60-63° C}.
evaporator and condensercircuits. then flows out of the bottom of the When the chiller is operating, the
Control is accomplished by a duplex condenser, passing through an temperature of the oil tank is
control module (DCM) as explained orifice plate and into the typically 1150 to 1600 F (46 -720
C).
in "Electrical Sequence of economizer.
Operation" sections of this manual. WARNINGI
The economizer reduces the energy A Use caution while working
Cooling-Only Cycle requirements
of the refrigeration on certain areas of the unit.
When the CDHF is functioning in cycle
by eliminating the need to Surface temperatures may
the cooling mode, liquid refrigerant pass all gaseous refrigerant through exceed 150° F on the compressor
is distributed along the length of the both stages of compression. See discharge, oil tank (heater), oil
evaporator and sprayed through Figure 2. Notice that some of the filter, and oil lubrication lines.
small holes in a distributor (Le., liquid refrigerant flashes to a gas
running the entire length
of the because ofthe pressure drop The oil tank is vented between the
shell) to uniformly coateach created by the orifice plate, thus compressor inletvanes and the
evaporator tube. Here, the liquid further
COOling the liquid refrigerant. first-stage impeller suction cover.
refrigerant absorbs enough heat This flash gas is then drawn directly During normal system operation,
from the system watercirculating from the economizer into the motorbarrel pressure is greater
through the evaporatortubes to second-stage impeller
of the than that of the oil tank. Therefore,
vaporize. compressor. All remaining liquid any gaseous refrigerant that enters
The gaseous refrigerant is then
drawn through the eliminators
(which remove droplets
of liquid
refrigerant flows out
of the the motorbearing cavities ;s drawn
economizer, passes through toward the oil tank where it is
anotherorifice plate and into the removed by the vent line.
evaporator.
9 CDHF-OM-1
Page 10 of 58
PETITIONER EXHIBIT 1019

Mechanical Operation -CDHF
Figunt 1
Illustrates the General Component
Layout of a Typical CDHF Chiller
~
-h
,..
~
Motor
rennine
eox
"-
- ~=-
Oil
---
SumJ
UCP2
---
Panel UCP2
Panel
Purge Rupture Disk
Evap
10
..--
-h
~
Motor
Tennini I
Box
.1"
10-. -
~
Oil
I......-
Sump
-
~ __ Nameplate
CDHF-OM-1
Page 11 of 58
PETITIONER EXHIBIT 1019

Mechanical Operation -CDHF
Figure 2
CDHF PresaurelEnthalpy Curve
Liquid Refrlgnnt
In Ecanomiz"
Economizer -&.----t
InlitPIpe
~_--::CoI== .. :::.-r=-=-_--t7'4 Compntaor
(2nd.st.ge)
EnIhIIpy (BTlNl.8M)
11
t
Compntaor
(111 Stage)
CDHF-OM-1
Page 12 of 58
PETITIONER EXHIBIT 1019

Mechanical Operation -CDHF
Figure 3
CDHF Compressor Lubrication System
-.~~
CIIJIIIIIII:SKI
b1----
~... LOW ..... 01. 1IWSIIUCIIt
/
~1
t1!::=-~ 'j--- k-= :"wo
t-
;:::;-.
11=
....
Ir -.
. -
II
'1
"
~
V
~
J 01.
ICOiiIi
t
01. TMII'
7
COIIDOISER
'---
-
~
ICONIIMZDt
I""""""l r--
(Frl
UOUID ~ 10 laIN
-
l'IM'I:1MnII
12
CDHF-OM-1
Page 13 of 58
PETITIONER EXHIBIT 1019

Mechanical Operation -CDHF
Oil Recovery System
A dual eductor system, Figure 4, is
used to reclaim oil from the suction
cover and from the evaporator, and
deposit it back into the oil tank.
These eductors use condenser gas
to draw the oil from the suction
cover and evaporator backto the
eductors. From the eductors the oil
is discharged to the top of the oil
tank.
Note: CDHFs utilize acircuit
module control relay and solenoid
valve that temporarily close the oil
sump vent line during the chiller
start
sequence. This prevents the
loss of oil pressure that can occur
during start-up by isolating the oil
sump from the low-pressure cavity
at the opposite end of the sump
vent line.
Liquid refrigerant is used to cool MotorCooling System
the oil supply to the inboard motor
bearing. Oil entering the oil cooler CDHF compressor motors are
assembly from the oil tank (via the cooled with liquid refrigerant This
regulating valve and filter) flows into pressurized motor cooling system is
a coil inside the cooler shell. As the illustrated in Figure 4.
oil passes through this coil, it is
cooled by a mixture ofgaseous and liquid refrigerant flows from the
liquid refrigerant that blows around condenser sump to the bottom of
the coil exterior. Once the cooled oil the compressor motor where it
leaves the cooler shell, it flows enters the motorchamber through a
directly to
the inboard motor control orifice. When the liquid
bearing, and eventually returns to refrigerant contacts the warmer
the oil tank. The refrigerant-side of motor components, a portion ofit
the oil cooler is piped into the return flashes to a gas and cools the
circuit of
the motor cooling system. motor. This ''flash'' gas, along with
Part of the refrigerant that is used to any excess liquid refrigerant, then
cool the compressor motor passes drains to the evaporator.
through the oil cooler shell on its
way to the evaporator. Because of the positive pressure
differential between the condenser
and evaporator, proper refrigerant
flow through the motor is
maintained at all load conditions.
13
CDHF-OM-1
Page 14 of 58
PETITIONER EXHIBIT 1019

Mechanical Operation -CDHF
Figure4
Motor Cooling and 011 Reclaim
System
..:::":r:-
.........
-
~
Ir- l .. ...
C
J "
'1
~
OIL ..
L.J-
CCINIDaUI
_ CCICIUNI
~
-'-10
~
Hca
.........,
-__ ..". COOlM SVIIEM
-- OL.a- .......
COMI'IDIIIII
/
-"......
-,
.
--u
V /
~
t 411EC1M1n1C1111UC11DNaMII
"'"---
__ - ca IIICLMt ,.... f.\iIIIIGMnIIt
'-DID_
CIIICII.Mf
..... ,
r-
IIXIIIDIIZIII
~
UIIUID __ 10 ICON
CC1 I
-
a-aM1DI
14
CDHF-OM-1
Page 15 of 58
PETITIONER EXHIBIT 1019

Chiller Control System
UnitControl Panel The UCP2 control consists of a
modulardesign partitioned by major
Safety and operating controls are function orgroup of functions. All
housed in the UCP2 unit control modules communicate with each
panel on the unit, the starter panel otherthru the IPC circuit
and the purge control panel (Control
Panel layout
is illustrated in
Figure 5)
Figure 5
Control Panel Layout
00 •
00
00
•
00
00
•
•
00
00
• o 0
00
00
00
•
00
00 0 01
00
• 0 01
00
00
CO
• •
00
•
• D
15
CDHF-OM-1
Page 16 of 58
PETITIONER EXHIBIT 1019

Electrical Sequence of Operation
Overview
This section will acquaintthe
operatorwith the control logic
governing CDHF chiller equipped
with UCP2 based control systems.
(b) The Chiller Module (1U1) to
operate the evaporator(4L2) and
condenser
(4l3) waterpressure
transducer solenoids and to
the
chilled water (5S1) and condenser
water (5S2) flow switch circuits.
Based on the RestartInhibitTimer
and the differential
to start setpoint,
oil pump (4B3) will be energized by
the Circuit Module
(1 U2-J22) and
the condenserwater pump relay
(5K2) will be energized by the
Chiller Module (1 U2-J14) when the
In the following discussion, The 8tarter Module (2U1) receives restart inhibit timer is at 30 seconds
reference is made
to Chiller"A" and 24 volt powerfrom control power or less. The oil pressure must be at
Chiller "B". Chiller"A" is AlWAYS transformer 2T4 in the starter panel. least9 PSID for 30 continuous
the leaving chilled waterside seconds and condenserwater
flow
The Clear Language Display (1 U4) verified within 3 minutes by the
Note: The typical wiring diagrams Stepper (1U3), Circuit (1U2), Chiller Module (1U1-J28) for the
printed in CDHF-IN-1 are Options (1U5), Chiller (1U1), and compressor start sequence to be
representatjyeofstandard
CPHF COMM (1U6), (1U7), (1U8) & (U10) initiated.
units and are provided only for modules obtain 24 volt powerfrom
general reference. They may
not control power transformer 1T1 in When less than 5 seconds remains
before compressorstart, a starter
test is conducted
to verify contactor
states prior
to starting the
compressor.
The test/start
sequence shown below
is
conducted for 'Wye-Delta" starters.
reflect the actual wiring
of your unit. the control panel.
For specific electrical schematic
and connection information, always
refer to the wiring diagrams that
shipped with the chiller.
Referto CVHE-W-8A fortypical
starterelectrical configurations.
With the supply powerdisconnect
switch
or circuit breaker (2CB1)
closed, 120-voltcontrol power is
provided through control power
transformer2T5 and a 30-amp
starter panel fuse (2F4) to terminal
1TB-1 in the UCP2 control panel.
From this point, control voltage
flows to:
Circuit Breaker 1CB1, supplying
powerto starter module (2U1) via
terminal 2TB1-6 for starter
contractors operation and
the high
condenser pressure switch 381.
Circuit Breaker 1CB2, supplying
powerto the purge module (3U1)
and the 24volt supply transformer
3T1 forthe purge module (3U1).
Circuit Breaker 1CB3, supplying
powerto:
Chilled and Condenser
Water FlowInterlock
Circuits
Proof of chilled waterflow for the
evaporator is made
by the closure
of flow switch 5S1 and the closure
of auxiliary contacts 5K1 on
terminals 1TB1-10 and 1TB1-12.
Proof
of condenserwaterflow for
(a) Testfor transition complete
contactopen (2K2 AUX at 2U1-J4)-
120to 180 msec. An MMR
diagnosticwill be generated ifthe
contact is closed.
the condenser is made by the (b) Delay time - 20 msec.
closure
of flow switch 582 and the
clos~re of auxiliary contacts 5K2 on (c) If "level 2 Contactor Integrity
terminals 1TB1-11 and 1TB1-13. Tesf' is enabled close start
,
UCP2 and 'Wye-Delta" contactor (2K1) and check for no
Current - 1 sec.
If currents are
StarterControl Circuits detected, the MMR diagnostic
logic Circuits within the various
moduleswill determine the starting,
running, and stopping operation
of
the chiller. If operation of the chiller
is required and the chiller mode is
set at "Auto", then the Chiller
Module's logic decides to startthe
chiller based on the differential
to
start setpoint.
"StarterFault Type 1" is generated.
(d) Delay time -200
msec.
(e) Close shorting contactor, (2K3)
and check
for no current - 1 sec. If
currents are detected the MMR
diagnostic "StarterFault Type II" is
generated.
The Chilled Water Pump Relay
(5K1) is energized by the Chiller
Module (1U1-J12) and chilled water
(a) The
1/0 module (1U10) will flow mustbe verified within 3
operate the vent line solenoid valve minutes by the Chiller Module
(4l1), the oil heater (4R1),and the (1U1-J26).
oil pump motor through fuse 1F2.
16
CDHF-OM-1
Page 17 of 58
PETITIONER EXHIBIT 1019

Electrical Sequence of Operation
(f) If no diagnostics are generated in (I) The micro must now confirm The duplex control module senses
the above tests, the StartRelay closure of the transition complete leaving chilled water of the
(2U1-J6) is closed for2 seconds contact (2K2-AUX) within 2.5 downstream chiller (Chiller "A") and
and the Stop relay (2U1-J8) is seconds afterthe run relay loads both simultaneously. The
closed to energize the start (2U1-J10) is closed. VVhen this is entering water temperature is
contactor (2K1) in "A" chiller. The verified the compressor motor sensed atthe entering side of the
shorting contactor (2K3) has starting sequence is complete. An upstream chiller(Chiller "B").
already been energized from (e) MMR diagnostic will be generated if
above. The compressor motor the transition complete contacts As the load decreases, the duplex
(4B1) starts in the 'Wye" (2K2-AUX) do not close. chiller module UNLOADS both
configuration, an auxiliary contact Chiller "A" and "B". Chiller "B" will
(2K1-AUX) locks in the start Now that the compressor motor in drop offthe line at a point below
contactor (2K1) coil, the vent line Chiller "A" (4B1) is running in the 35%. Chiller "A" takes up the load
solenoid valve (4L 1) is closed by "Delta" configuration, the inlet guide carried by Chiller"B"and then
relay 1U2-J16 for 100 seconds, and vanes will modulate, based on unloads based on system
the acceleration timer begins to Loading/Unloading sequence requirements.
time out. described below. Duplex Control Module (DCM)
(g) Afterthe compressor motor has Duplex ChillerLoading Setpoint Control managment falls
accelerated and the maximum Sequence into (3) categories: Front Panel
phase current has dropped below The duplexchillercontrol will be Equalization, Active Setpoint
85% of the chiller nameplate RLA accomplished by the Duplex Control Transfer and Auto/stop
for 1.5 seconds, the starter Module (DCM) that resides in Management.
transition to the "Delta"
configuration is initiated downstream unit Chiller "A". Its Front Panel Equalization:
. main tasks are setpoint control Applies to only chilled water
(h) The transition contactor (2K4) is (chilled water an~ current limit) and setpoint and current limitsetpoint.
closed through relay 2U1-J14, comp~sor staging. All other VVhen the DCM detects a change in
plaCing the transition resistors (2R1, ~tPc:'lnts are controlled at each one of these front panel setpoints
2R2 and 2R3) in parallel with the IndiVidual ~mpressor UCP2 cle~r on one of the panels it transfers the
t .
d· language display panel. Each Unit
compressor mo or Win Ings. can be reset orstopped separately new value to the same setpoint on
through each clearlanguage the other panel. This allows the
(i) The shorting contactor (2K3) is display. Options rurt available for userto mod.ify any ~pplication front
opened through the opening of duplex units are: tracer base panel setpolnt on either p~nel and
relay 2U1-J12 100 msec afterthe loading, hot gas bypass, hot water have the change automatically sent
closure of the transition relay control, free cooling and ice making. to the other panel.
2U1-J14.
. . To the Tracer or generic BAS, the Actlve.SetpointTransfer:
(j) The run contactor (2K2) I~ closed du lex chiller acts as one chiller Is n0!hlng more. than alway~ .
through ~Iay 2U~-J10 shorting out by~ccePting only one set of co~trol sendl~g the active current limit
the transition resistors 260 msec tpo. ts setpolnt of panel "A" to panel "B"
afterthe opening of the shorting se In. through the duplex control module.
relay 2U1-J12. This places the Ch·11 Load· Seq. The duplex control module current
~ . th "Delta" I er Ing uence. I· ·t t . t h Id k
compreSS?r moLor In ~ . Chiller "A" (the downstream chiller) Iml se poln s ou ta e
configuration and the micro waits to tart fi t did t 100'* precedence over all other current
look forthis transition for 2.32 -2.38 TSh s. rs adn dOb
a
sd
o h
tho. t limit setpoints. If the DCM loses
d th hth cI fth erelsa ea an suc a . ti ·th IliA" .
seco~. s roug e osure 0 e once Chiller "A" is above 80% for ~mmunlca ons WI pan.e. ' It
tranSItion complete contacts more than (5) minutes, Chiller "B" Will s~t the DCM :u~n~ IIml~
(2K2-AUX) at 2U1-J4. starts. While Chiller "B" ramps up to se~lnt to pan,~1 "B to Inval~,
{k} 140 msec after(2K2) is
energized, the transition relay
(2U1-J14) is opened de-energizing
the transition contactor (2K4).
50% Chiller "A" unloads to 50%. At causing .p~nel B .to choose Its
this point both compressors load as current limit ~tpolnt from some
required jointly to 100%. other so~rce. Front Panel, Tracer or
external Input.
17 CDHF-OM-1
Page 18 of 58
PETITIONER EXHIBIT 1019

Electrical Sequence of Operation
Auto/Stop Management:
Allows Tracer or generic BAS
system to stop the duplex as one
machine. The chiller module puts
information on the IPC that allows
the DCM to know when to listen to
TracerAuto/Stop and otherTracer
commands.
If the chilled watertemperature
drops below the chilled water
setpoint by an amount set as the
"differential to stop" setpoint, a
normal chiller stop sequence is
initiated as follows:
(b) Afterthe 50 seconds has
elapsed, the stop relay (2U1~J6)
and the condenserwater pump
relays (1U1~14) open to tum off
the compressor motor (4B1) and
the condenser water pump. The oil
pump motor(4B3) will continue to
run for 3 minutes post lube while
the compressor coasts to a stop.
Chiller Report Screen:
1. ChillerOperating Mode: DCM
stop will
be seen as a standard
mode.
2. Active Chilled Water
SetpointlChilled WaterSetpoint
source: Duplex control has been
added as a setting source.
The chilled water pump will continue
to run while the chiller module (1U1)
3. Active Current Limit
monitors leaving chilled water Setpointlcurrent Limit Setpoint
temperature preparing for the next source: Duplexcontrol has been
compressor motorstart based on added as a setting source.
the "differential to start" setpoint.
(a) The inlet guide vanes are driven 4. Chilled WaterSetpoint source:
closed for50 seconds. If the STOP key is pressed on the
Clear language Display (CLD), the
chillerwill follow the same stop
sequence as above exceptthe
chilled water pump relay (1U1-J12)
will also open and stop the chilled
water pump afterthe chilled water
pump delay timerhas timed out
after compressorshut down.
Duxplexcontrol has been added as
a setting source.
5. Current Limit Setpoint source:
Duplex control has been added as a
setting source.
Operator Settings:
6. Chilled WaterReset Type: This
screen is suppressed when the
If the STOP key is pressed twice in chiller is underDuplex Control and it
rapid succession (twice within 5 is Compressor
B.
seconds), a "panic stop" is initiated Service Settings:
which follows the same stop
sequence as pressing the STOP
7. ~uplex ~ontrol Module (OCM)
key once exceptthe inlet guide optIOn: ThiS has been added
vanes are not sequence closed and directly following the printeroption
the compressor motor is screen. The options are installed or
immediately turned off. not installed. The DCM option will
Duplex Unit
UCP2 Displays and
Diagnostic Description
The following is a list of new duplex
unit displays that you will find in the
UCP2 controls and a list
of
associated diagnostics.
18
automatically be installed if
communication with a OCM module
occurs.
Diagnostics
Description
Newdiagnosticdescriptions on the
UCP2 that relate to the Duplex are
shown
in Table 1.
CDHF~M-1
Page 19 of 58
PETITIONER EXHIBIT 1019

Electrical Sequence of Operation
Table 1
Diagnostics that relate to
the Duplex Unit
Diagnostic Appl Unit Dlag Can Be Help
Cause Remotely
Description Type Type Reset Message
OCM:Lossof The oeM module lostcommuncations ChecklPC
Commwith
ClV IFW with the ChillerA Chiller Module for 15
Ves Wiring
ChillerA contiguous seconds Connections
OCM: Loss of The OCM module lostcommuncations ChecklPC
Commwith
ClV IFW
with the Chiller B Chiller Module for 15
Ves
Wiring
ChilierB
contiguous seconds Connections
oeM: Loss of
The OCM module lostcommuncations
ChecklPC
Commwith
ClV
IFW with the Chiller A Starter Module for 15
Ves Wiring
StarterA contiguous seconds Connection
OCM: Loss of
The OCM module lost communcations ChecklPC
Commwith
ClV IFW with the Chiller B Starter Module for 15 Ves Wiring
Starter B contiguous seconds Connection
oeM: Lass of The OCM module lostcommuncations ChecklPC
Commwith
ClV IFW with the ChillerA TCI Module for 15 Ves
Wiring
TCIA
contiguous seconds Connection
OCM: Loss of
The OCM module lostcommuncations ChecklPC
Commwith
ClV IFW with the ChillerA TCI Module for 15 Ves Wiring
StepperA contiguous seconds Connection
19 COHF-OM-1
Page 20 of 58
PETITIONER EXHIBIT 1019