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York YT Specifications Page 75
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FORM 160.55-O1 (402)
75
YORK INTERNA
TIONAL
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T
O MAINT
AIN FORMA
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MILLENNIUM
1
REFERENCE INSTRUCTIONS
4
NOMENCLATURE
4
TABLE OF CONTENTS
5
LIST OF FIGURES
6
SECTION 1
7
CAPACITY CONTROL
8
SECTION 2
9
CONTROL CENTER
10
INTERFACE CONVENTIONS
11
ANALOG INPUT RANGES
13
HOME SCREEN
14
SYSTEM SCREEN
16
EVAPORATOR SCREEN
18
CONDENSER SCREEN
20
PURGE SCREEN
22
COMPRESSOR SCREEN
26
HOT GAS BYPASS SCREEN
28
SURGE PROTECTION SCREEN
30
TO MAINTAIN FORMAT
33
VSD TUNING SCREEN
34
OIL SUMP SCREEN
36
VARIABLE SPEED DRIVE SCREEN
42
SETPOINTS SCREEN
54
SETUP SCREEN
56
SCHEDULE SCREEN
58
USER SCREEN
60
COMMS SCREEN
62
PRINTER SCREEN
64
SALES ORDER SCREEN
66
OPERATIONS SCREEN
68
HISTORY SCREEN
70
HISTORY DETAILS SCREEN
72
SECURITY LOG SCREEN
73
SECURITY LOG DETAILS SCREEN
74
TREND SCREEN
76
TREND SETUP SCREEN
78
ADVANCED TREND SETUP SCREEN
80
COMMON SLOTS SCREEN
82
CUSTOM VIEW SCREEN
83
CUSTOM VIEW SETUP
84
DISPLAY MESSAGES
88
START INHIBIT MESSAGES
89
WARNING MESSAGES
89
CYCLING SHUTDOWN MESSAGES
93
OptiView Control Center
100
MOD “B” SOLID STATE STARTER
101
SAFETY SHUTDOWN MESSAGES
101
COMPRESSOR MOTOR VARIABLE
102
SPEED DRIVE:
102
FORM 160.55-O1 (402)
103
YORK INTERNATIONAL
103
SECTION 3
104
PRINTERS
105
Printers
106
CONTROL CENTER SETUP
107
FIG. 44 – CONTINUED
109
FIG. 45 – CONTINUED
111
YORK HISTORY 1
113
CHILLER ID 0
113
YORK TREND
115
CHILLER ID 163
115
YORK CUSTOM VIEW
115
CHILLER ID 0
115
SECTION 4
116
System Operating Procedures
118
IMPORTANT!
121
COMPRESSOR / MOTOR ASSEMBLY
123
System Components Description
124
COMPRESSOR LUBRICATION SYSTEM
125
OIL PUMP
125
OIL HEATER
125
OIL RETURN SYSTEM
127
Operational Maintenance
128
CHARGING THE UNIT WITH OIL
129
SECTION 7
130
TROUBLE SHOOTING
130
Troubleshooting
132
SECTION 8
136
MAINTENANCE
136
RENEWAL PARTS
136
CHECKING SYSTEM FOR LEAKS
136
TABLE 3 – SYSTEM PRESSURES
137
VACUUM TESTING
138
VACUUM DEHYDRATION
138
OPERATION
138
REFRIGERANT CHARGING
139
HANDLING REFRIGERANT FOR
140
DISMANTLING AND REPAIRS
140
MEGGING THE MOTOR
140
CONDENSERS AND COOLERS
141
Open Motors
142
TUBE CLEANING PROCEDURES
143
COMMERCIAL ACID CLEANING
143
COMPRESSOR
144
ELECTRICAL CONTROLS
144
SECTION 9
144
PREVENTIVE MAINTENANCE
144
COOLER AND CONDENSER
145
PURGE UNIT
145
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