York YST - Page 7

JOHNSON CONTROLS
7
FORM 160.67-O2
ISSUE DATE: 10/9/2020
Turbine Lubrication Systems .......................................................................................................................... 53
KG Steam Turbine with Ring Oil Lubrication .........................................................................................55
KD Steam Turbine with External Pressurized Lube System .................................................................55
KD Turbine Auxiliary Oil Pump ..............................................................................................................55
Turbine Gland Seal System...................................................................................................................55
Types of Gland Leak-O󰀨 Systems .........................................................................................................55
Gland Seal System: Standard YST Condensing Turbines ....................................................................56
Gland Seal Wear ................................................................................................................................... 56
Gland Seal Leak-O󰀨 Piping .................................................................................................................. 56
Gland Leak-O󰀨 Condenser - Optional Supply by Special Quotation .....................................................57
Vacuum Breaker Solenoid Valve ...........................................................................................................57
Steam Nozzle Valves ............................................................................................................................57
Sentinel Warning Valve .........................................................................................................................57
Steam Ring Drain ..................................................................................................................................57
Pressure Powered Condensate Drain Pump ........................................................................................58
A Factory supplied automatic pressure powered pump is provided for draining condensate from the
steam turbine casing, during operation. The pressure power pump is shipped loose and all piping and
installation is provided by others. ..........................................................................................................58
Condensate Drain Tank – Optional Supply by Special Quotation .........................................................58
Turbine Governor And Overspeed Controls ...................................................................................................59
Heat Exchangers ............................................................................................................................................ 59
Refrigerant Flow Control ................................................................................................................................60
Optional Service Isolation Valves ...................................................................................................................60
Hot Gas Bypass .............................................................................................................................................60
Optiview™ Control Center ..............................................................................................................................60
Power Panel ...................................................................................................................................................61
Steam Condenser Package ...........................................................................................................................61
Steam Condenser ...............................................................................................................................61
Atmospheric Relief Valve ......................................................................................................................61
Hotwell (Condensate) Pump .................................................................................................................62
Vacuum Pump .......................................................................................................................................62
Level Control .........................................................................................................................................62
SECTION 4 - OPERATIONAL MAINTENANCE .................................................................................................63
Compressor Oil Return System ......................................................................................................................63
Changing The Dehydrator ..............................................................................................................................63
The Compressor Oil Charge ..........................................................................................................................64
Compressor Oil Charging Procedure .............................................................................................................64
Compressor Oil Filter .....................................................................................................................................65
Single Oil Filter Replacement ................................................................................................................ 65
Dual Oil Filter Replacement .................................................................................................................66
Turbine Oil Maintenance ................................................................................................................................66
Ring Oil Lubrication ...............................................................................................................................66
Pressure Lubrication .............................................................................................................................67
Lube Oil Flushing ..................................................................................................................................68
Determining Correct Refrigerant Charge Level ..............................................................................................68
Refrigerant Charging .............................................................................................................................69
Refrigerant Leak Checking ............................................................................................................................. 69
Pressure Connections ....................................................................................................................................69
TABLE OF CONTENTS (CONT'D)