Table Of Contents - York R-134a Operation And Maintenance Manual

FORM 160.76-O1
ISSUE DATE: 05/22/2019
SECTION 1 - DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION .................................... 7
System Operation Description ......................................................................................................................... 7
Capacity Control ............................................................................................................................................... 7
SECTION 2 - SYSTEM OPERATING PROCEDURES .........................................................................................9
Oil Heaters ....................................................................................................................................................... 9
Oil Heater Operation ........................................................................................................................................ 9
Checking The Oil Level In The
Oil Reservoir ..................................................................................................................................................... 9
Start-Up ............................................................................................................................................................ 9
Chiller Operation ............................................................................................................................................ 10
Condenser Water Temperature
Control ............................................................................................................................................................ 10
Operating Log Sheet ...................................................................................................................................... 10
Operating Inspections .................................................................................................................................... 11
Need For Maintenance Or Service ................................................................................................................. 12
Stopping The System ..................................................................................................................................... 12
Prolonged Shutdown ...................................................................................................................................... 12
SECTION 3 - SYSTEM COMPONENTS DESCRIPTION ...................................................................................13
General ........................................................................................................................................................... 13
Compressor .................................................................................................................................................... 13
Capacity Control ............................................................................................................................................. 13
Compressor Lubrication System ................................................................................................................... 13
Oil Pump ......................................................................................................................................................... 13
Oil Heater ....................................................................................................................................................... 17
Motor Driveline ............................................................................................................................................... 17
Heat Exchangers ............................................................................................................................................ 17
Refrigerant Flow Control ................................................................................................................................ 17
Optional Service Isolation Valves ................................................................................................................... 18
Optional Hot Gas Bypass ............................................................................................................................... 18
Optiview™ Control Center ................................................................................................................................................18
Solid State Starter (Optional) ......................................................................................................................... 18
Variable Speed Drive (Optional) ..................................................................................................................... 18
SECTION 4 - OPERATIONAL MAINTENANCE .................................................................................................19
Oil Return System .......................................................................................................................................... 19
Changing The Dehydrator .............................................................................................................................. 19
The Oil Charge ............................................................................................................................................... 20
Oil Charging Procedure .................................................................................................................................. 20
SECTION 5 - TROUBLESHOOTING ...................................................................................................................21
SECTION 6 - MAINTENANCE .............................................................................................................................23
Renewal Parts ................................................................................................................................................ 23
Checking System For Leaks .......................................................................................................................... 23
Conducting Pressure Test .............................................................................................................................. 23
Vacuum Testing .............................................................................................................................................. 24
JOHNSON CONTROLS

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