19XR (PIC II) Hermetic Centrifugal Liquid Chillers 50 Hz - Carrier

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TABLE OF CONTENTS (cont'd)
7.2 - Weekly maintenance ................................................................................................................................................................. 51
7.3 - Scheduled maintenance ............................................................................................................................................................. 52
7.3.1 - Service Ontime ................................................................................................................................................................. 52
7.3.2 - Inspect the Control Centre ................................................................................................................................................ 52
7.3.3 - Changing Oil Filter ........................................................................................................................................................... 52
7.3.4 - Oil Specification ............................................................................................................................................................... 52
7.3.5 - Refrigerant Filter .............................................................................................................................................................. 53
7.3.6 - Oil Reclaim Filter ............................................................................................................................................................. 53
7.3.7 - Inspect Refrigerant Float System ..................................................................................................................................... 53
7.3.8 - Inspect Relief Valves and Piping (see chapter 'Safety considerations') ........................................................................... 53
7.3.9 - Verification of the pressure switch calibration ................................................................................................................. 53
7.3.10 - Compressor Bearing and Gear Maintenance.................................................................................................................. 53
7.3.11 - Inspect the Heat Exchanger Tubes ................................................................................................................................. 53
7.3.12 - Water Leaks .................................................................................................................................................................... 54
7.3.13 - Inspect the Starting Equipment ...................................................................................................................................... 54
7.3.14 - Check Pressure Transducers ........................................................................................................................................... 54
7.3.15 - Corrosion control ............................................................................................................................................................ 54
LIST OF FIGURES
Fig. 1 - Model number meaning ........................................................................................................................................................ 12
Fig. 2 - 19XR machine components .................................................................................................................................................. 12
Fig. 3 - Refrigerant motor cooling and oil cooling cycles ................................................................................................................ 13
Fig. 4 - Lubrication system................................................................................................................................................................ 15
Fig. 5A - Starter cabinet - internal view with internal door closed ................................................................................................... 16
Fig. 5B - Starter cabinet - internal view with internal door open...................................................................................................... 16
Fig. 6 - Machine rigging guide .......................................................................................................................................................... 18
Fig. 7 - Dimensional drawing ............................................................................................................................................................ 22
Fig. 8 - Dimensional drawing - cooler, side view ............................................................................................................................. 23
Fig. 9 - 19XR chiller top view ........................................................................................................................................................... 23
Fig. 10 - Compressor detail ............................................................................................................................................................... 24
Fig. 11 - Unit rear view ..................................................................................................................................................................... 24
Fig. 12 - Chiller footprint .................................................................................................................................................................. 25
Fig. 13 - Standard isolation ............................................................................................................................................................... 26
Fig. 14 - Accessory isolation ............................................................................................................................................................. 26
Fig. 15 - 19XR Accessory spring isolation........................................................................................................................................ 26
Fig. 16 - Typical nozzle piping .......................................................................................................................................................... 27
Fig. 17 - Nozzle arrangements - nozzle-in-head waterboxes ............................................................................................................ 28
Fig. 18 - Optional pumpout system piping schematic with storage tank .......................................................................................... 29
Fig. 19 - Pumpout system piping schematic with storage tank ......................................................................................................... 29
Fig. 20 - Relief device locations ........................................................................................................................................................ 30
Fig. 21 - COMM1 CCN communication wiring for multiple chillers (typical) ................................................................................ 34
Fig. 22 - 19XR with optional unit-mounted starter ........................................................................................................................... 35
Fig. 23 - 19XR with freestanding starter ........................................................................................................................................... 36
Fig. 24 - Machine isolation................................................................................................................................................................ 38
Fig. 25 - 19XR leak detection procedure .......................................................................................................................................... 42
Fig. 26 - Dehydration cold trap ......................................................................................................................................................... 43
Fig. 27 - Rotation diagram ................................................................................................................................................................ 46
Fig. 28 - Refrigeration log ................................................................................................................................................................. 48
Fig. 29 - Guide vane actuator linkage ............................................................................................................................................... 51
Fig. 30 - 19XR float valve design ..................................................................................................................................................... 53
Fig. 31 - Compressor fits and clearances .......................................................................................................................................... 55