Table Of Contents - York YLUA0248 Series Installation Operation & Maintenance

FORM 150.73-NM2
ISSUE DATE: 09/07/2020
SECTION 1 - GENERAL EQUIPMENT INFORMATION AND SAFETY .......................................................... 11
Introduction ..................................................................................................................................................... 11
Compressors .................................................................................................................................................. 11
Condenser ...................................................................................................................................................... 11
Refrigerant Circuit .......................................................................................................................................... 11
Warranty ......................................................................................................................................................... 11
Safety And Quality .......................................................................................................................................... 12
About This Manual.......................................................................................................................................... 12
Misuse Of Equipment ..................................................................................................................................... 13
SECTION 2 - PRODUCT DESCRIPTION ...........................................................................................................15
Introduction ..................................................................................................................................................... 15
General System Description ........................................................................................................................... 15
Refrigerant Circuit .......................................................................................................................................... 16
Microcomputer Control Center ....................................................................................................................... 16
High Ambient Kit ............................................................................................................................................. 17
Communications ............................................................................................................................................. 17
Power Panel ................................................................................................................................................... 17
Accessories And Options ............................................................................................................................... 18
Unit Components ........................................................................................................................................... 20
Product Identification Number (Pin) ............................................................................................................... 23
Refrigerant Flow Diagram .............................................................................................................................. 28
Process And Instrumentation Diagram ........................................................................................................... 29
SECTION 3 - HANDLING AND STORAGE ........................................................................................................31
Delivery And Storage ...................................................................................................................................... 31
Inspection ....................................................................................................................................................... 31
Unit Rigging .................................................................................................................................................... 31
SECTION 4 - INSTALLATION .............................................................................................................................33
Installation Checklist ....................................................................................................................................... 33
Handling ......................................................................................................................................................... 33
Location And Clearances ............................................................................................................................... 33
Spring Isolators (Optional) .............................................................................................................................. 34
Compressor Mounting .................................................................................................................................... 34
Pipework Arrangement ................................................................................................................................... 34
Duct Work Connection ................................................................................................................................... 34
Wiring ............................................................................................................................................................. 34
Compressor Heaters ...................................................................................................................................... 35
Relief Valves ................................................................................................................................................... 35
High Pressure Cutout ..................................................................................................................................... 35
Electrical Wiring .............................................................................................................................................. 35
Compressor Heaters ...................................................................................................................................... 37
Refrigerant Piping ........................................................................................................................................... 37
Refrigerant Piping Reference ......................................................................................................................... 37
YCRL Line Sizing Notes ................................................................................................................................. 37
Refrigerant Line Sizing ................................................................................................................................... 40
Oil Traps ....................................................................................................................................................... 40
JOHNSON CONTROLS

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