York R123 - Page 156

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800-861-1001

www.york.com

P.O. Box 1592, York, Pennsylvania USA 17405-1592 Subject to change without notice. Printed in USA

Form 160.55-O1 (604)

Supersedes: 160.55-O1 (402)

Main Page

Table of Contents5
SECTION 1 Description of System and Fundamentals of Operation7
Fig. 1 - Model Yt Millennium Chiller7
Fig. 2 - Refrigerant Flow-Through Chiller8
SECTION 2 Optiview Control Center9
Fig. 3 - Control Center12
Fig. 4 - Home Screen16
Fig. 5 - System Screen18
Fig. 6 - Evaporator Screen20
Fig. 7 - Condenser Screen22
Fig. 8 - Purge Screen24
Fig. 9 - Refrigerant Level Control Screen26
Fig. 10 - Compressor Screen28
Fig. 11 - Hot Gas Bypass Screen30
Fig. 12 - Surge Protection Screen32
Fig. 13 - Pre-Rotation Vanes Calibration Screen36
Fig. 14 - Vsd Tuning Screen38
Fig. 15 - Oil Sump Screen40
Fig. 16 - Electro-Mechanical Starter Screen41
Fig. 17 - Solid State Starter (Mod A) Screen42
Fig. 18 - Solid State Starter (Mod B) Screen44
Fig. 19 - Variable Speed Drive Screen46
FIG. 21 - VARIABLE SPEED DRIVE DETAILS SCREEN (VSD with Part Number 371-02767-XXX (60 Hz) or 371-03700-XXX (50 Hz))50
Fig. 22 - Adaptive Capacity Control Details Screen52
Fig. 25 - Setpoints Screen58
Fig. 26 - Setup Screen60
Fig. 27 - Schedule Screen64
Fig. 28 - User Screen66
Fig. 29 - Comms Screen68
Fig. 30 - Printer Screen70
Fig. 31 - Sales Order Screen72
Fig. 32 - Operations Screen74
Fig. 33 - History Screen76
Fig. 34 - History Details Screen78
Fig. 35 - Security Log Screen79
Fig. 36 - Security Log Details Screen80
Fig. 37 - Trend Screen82
Fig. 38 - Trend Setup Screen84
Fig. 39 - Advanced Trend Setup Screen86
Fig. 40 - Common Slots Screen88
Fig. 41 - Custom View Screen89
Fig. 42 - Custom View Setup Screen90
Solid State Starter Cycling Shutdown Messages99
Fig. 45 - Sample Printout (Setpoints)110
SECTION 3 Printers112
Fig. 43 - Printers112
Fig. 44 - Sample Printout (Status)116
Fig. 46 - Sample Printout (Schedule)119
Fig. 47 - Sample Printout (Sales Order)120
Fig. 48 - Sample Printout (History)121
Fig. 49 - Sample Printout (Security Log)122
Fig. 50 - Sample Printout (Trend)123
Fig. 51 - Sample Printout123
Fig. 52 - Sample Printout123
Fig. 53 - Sample Printout (Adaptive Capacity Control Existing Map Points Report)123
SECTION 4 System Operating Procedures124
Fig. 54 - Operation Sequence & Timing Diagram (Electro-Mechanical & Solid State Starter Applications)126
Fig. 55 - Operation Sequence & Timing Diagram (Compressor Motor Variable Speed Drive Applications)126
Fig. 56 - Minimum Entering Condensing Water Temperature127
Fig. 57 - Liquid Chiller Log Sheets127
Fig. 58 - Turboguard Purge Unit129
SECTION 5 System Components Description131
Fig. 59 - Schematic Drawing (Yt) Compressor Lubrication System132
SECTION 6 Operational Maintenance135
Fig. 60 - Oil Return System135
Fig. 61 - Assembly of Dehydrator136
Fig. 62 - Charging Oil Reservoir with Oil137
SECTION 7 Troubleshooting138
SECTION 8 Maintenance144
Fig. 63 - Evacuation of Chiller145
Fig. 64 - Saturation Curve147
Fig. 65 - Diagram - Megging Motor Windings149
Fig. 66 - Motor Stator Temperature150
SECTION 9 Preventive Maintenance152
SECTION 10 Optisave Energy Analyser Feature154

York R123 - Page 156

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