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JOHNSON CONTROLS

FORM 160.67-O2

ISSUE DATE: 10/9/2020

TABLE OF CONTENTS

SECTION 1 - DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION .................................. 11

General System Description ........................................................................................................................... 11

Refrigeration System Operation .....................................................................................................................12

Capacity Controls ...........................................................................................................................................12

Steam and Condensate Flow .........................................................................................................................15

SECTION 2 - PRE-STARTUP AND SYSTEM OPERATING PROCEDURES ..................................................19

Overview ........................................................................................................................................................19

Pre-Startup Procedures – Initial And After Long Term Shutdown ..................................................................19

Check The Status Of The Main Steam Supply ..............................................................................................19

Blow-Down The Inlet Steam Line ................................................................................................................... 19

Inspect And Clean Steam Strainers ...............................................................................................................20

Inspect And Clean Water Strainers ................................................................................................................20

Inspect And Clean The Turbine ......................................................................................................................20

Flush The Turbine Lube System (Pressure Lubrication Turbine Only) ........................................................... 20

Check The Oil Level In The Turbine Bearing Reservoirs (Ring Oil Lubrication) ............................................21

Check The Coupling And Alignment ............................................................................................................... 21

Check The Refrigerant Charge....................................................................................................................... 21

Oil Heaters .....................................................................................................................................................21

Oil Heater Operation ......................................................................................................................................21

Check The Oil Level In The Compressor Oil Reservoir ..................................................................................22

Check The Status Of All Utilities .....................................................................................................................22

Verify The Compressor Oil Pump Operation .................................................................................................. 22

Verify The Turbine Governor Valve Operation ................................................................................................22

Verify The Compressor Pre-Rotation Vane Operation ....................................................................................23

Verify The Hot Gas Bypass And Subcooler Level Control Valve Operation ..................................................23

Prepare The Steam Condenser Hotwell And Pumps .....................................................................................23

Prepare The Steam Condenser Vacuum Pumps ...........................................................................................24

Prepare The Steam Condenser Atmospheric Relief Valve .............................................................................25

Prepare The Chilled And Condenser Water Piping And Pumps ..................................................................... 25

Prepare The Pressure Powered Pump........................................................................................................... 25

Verify All User Defined Setpoints ....................................................................................................................25

Pre-Startup Procedures – After Short Term Shutdown ...................................................................................25

Sequence Of Operation ..................................................................................................................................26

Slow Roll Time Calculation ............................................................................................................................. 27

Overview ........................................................................................................................................................28

Startup Sequence Of Operation ....................................................................................................................31

System Operating Procedure .........................................................................................................................35

General ..................................................................................................................................................35

Hourly ....................................................................................................................................................35

Shut Down Sequence Of Operation ...............................................................................................................36

Normal (Controlled) Stop .......................................................................................................................36

Immediate Stop .....................................................................................................................................36

Post Trip Shutdown Sequence ..............................................................................................................36

Capacity Controls ..........................................................................................................................................38

Overview ...............................................................................................................................................38

Fixed Speed Chiller Capacity Controls Operation .......................................................................................... 38

Fixed Speed Chiller Loading Sequence .........................................................................................................38