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

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4 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
INITIAL START-UP CHECKLIST FOR 19XR HERMETIC CENTRIFUGAL LIQUID CHILLERS Name: _____________________________________________________________________________________________ Address: ____________________________________________________________________________________________ Town: ______________________________________________________________________________________________ Country: ____________________________________________________________________________________________ Post code: ___________________________________________________________________________________________ Job No.: _____________________________________________________________________________________________ Model: ______________________________________________________________________________________________ Serial No.: ____________________________________________________________________________________________ Design conditions: Evaporator Condenser Cooling Brine Flow Temperature Temperature Pressure Pass Suction Condensing capacity rate in out drop temperature temperature Compressor: Volts _______________________ RLA: _______________________ OLTA: __________________ Starter: Mfg ________________________ Type: _______________________ Oil pump: Volts _______________________ RLA: _______________________ OLTA: __________________ Control/oil heater: 115 Volts ___________ 230 Volts ___________ Refrigerant: Type _______________ Charge (kg) __________ Carrier obligations: Assemble: Yes ________ No ________ Leak test: Yes ________ No ________ Dehydrate: Yes ________ No ________ Charging: Yes ________ No ________ Operating instructions: ____________ Hours START-UP TO BE PERFORMED IN ACCORDANCE WITH APPROPRIATE MACHINE START-UP INSTRUCTIONS Job data required: 1. Machine installation instructions 19XR Yes ________ No ________ 2. Machine assembly, wiring and piping diagrams Yes ________ No ________ 3. Starting equipment details and wiring diagrams Yes ________ No ________ 4. Applicable design data (see above) Yes ________ No ________ 5. Diagrams and instructions for special controls Yes ________ No ________ Initial machine pressure: __________________ Was machine tight? Yes ________ No ________ If not, were leaks corrected? Yes ________ No ________ Was machine dehydrated after repairs? Yes ________ No ________ Check oil level and record: Add oil: Yes ________ No ________ Amount: ___________________________ _______ 3/4 _______ 3/4 _______ 1/2 Top sight glass _______ 1/2 Bottom sight glass _______ 1/4 _______ 1/4 Record pressure drops: Evaporator ________________ Condenser ________________ Refrigerant charge: Initial charge _______________ Final charge after trim ______________ 5
Page 1 and 2: 19XR (PIC II) Hermetic Centrifugal
Page 3: TABLE OF CONTENTS (cont'd) 4 - BEFO
Page 7 and 8: 19XR HERMETIC CENTRIFUGAL LIQUID CH
Page 9 and 10: 1 - SAFETY CONSIDERATIONS 19XR liqu
Page 11 and 12: 2 - INTRODUCTION AND CHILLER FAMILI
Page 13 and 14: The control centre: registers coole
Page 15 and 16: 1. Rear motor bearing 2. Forward mo
Page 17 and 18: 3 - INSTALLATION 3.1 - Introduction
Page 19 and 20: 3.3.3 - Physical data Table 1 Motor
Page 21 and 22: Maximum and minimum heat exchanger
Page 23 and 24: 1. Hot gas bypass (cut) 2. Compress
Page 25 and 26: 3.4 - Install machine supports Typi
Page 27 and 28: 1. Air vent 2. Leaving condenser wa
Page 29 and 30: 1a. Safety valve on machine 1b. Saf
Page 31 and 32: The control cabinet (standard unit)
Page 33 and 34: Electrical characteristics of the m
Page 35 and 36: 3.6.4 - Make the necessary connecti
Page 37 and 38: Insulate Motor Terminals and Lead W
Page 39 and 40: 4 - BEFORE INITIAL START-UP 4.1 - N
Page 41 and 42: h. Slowly raise the system pressure
Page 43 and 44: 6. Valve off the vacuum pump, stop
Page 45 and 46: The valve is opened counter-clockwi
Page 47 and 48: To return the chiller to normal con
Page 49 and 50: 49 Date: __________________________
Page 51 and 52: To pressurize with dry nitrogen Ano
Page 53 and 54: 7.3.5 - Refrigerant Filter A refrig
Page 55 and 56:
X See view A Y See view B Z Thrust
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19XR (PIC II) Hermetic Centrifugal Liquid Chillers 50 Hz - Carrier

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