Johnson Controls YORK YLUA0078Z Series - Table of Contents

JOHNSON CONTROLS
5
FORM 150.73-NM1
ISSUE DATE: 07/03/2024
Table of contents
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 ................................................................................................................................17
Unit components ...........................................................................................................................................20
Nomenclature (Pin) ........................................................................................................................................23
Refrigerant flow diagram ................................................................................................................................27
Process and instrumentation diagram ............................................................................................................ 28
Section 3: Handling and storage ..........................................................................................................................29
Delivery and storage ......................................................................................................................................29
Inspection .......................................................................................................................................................29
Unit rigging .....................................................................................................................................................29
Section 4: Installation ...........................................................................................................................................31
Installation checklist .......................................................................................................................................31
Handling .........................................................................................................................................................31
Location and clearances ................................................................................................................................31
Spring isolators: optional ................................................................................................................................32
Compressor mounting ....................................................................................................................................32
Pipework arrangement ...................................................................................................................................32
Ductwork connection .....................................................................................................................................32
Wiring .............................................................................................................................................................32
Compressor heaters ....................................................................................................................................... 33
Relief valves ...................................................................................................................................................33
High pressure cutout ......................................................................................................................................33
Electrical wiring ..............................................................................................................................................33
Compressor heaters ....................................................................................................................................... 35
Refrigerant piping ...........................................................................................................................................35
Oil traps ..........................................................................................................................................................38
Refrigerant charge ..........................................................................................................................................38
Filter driers, sight glasses, and TXV’S............................................................................................................38
Refrigerant piping notes .................................................................................................................................39
Control wiring .................................................................................................................................................41