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CHILLER MAINTENANCE & TROUBLE SHOOTING.ppt IKM jb.ppt
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- 2. Chiller water system Bigsystem Plant room to operate Open space for cooling tower Pump motor to circulate chilled water and condenser water Safety features Need proper maintenance technician Monthly maintenance Main for high building and complex building
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- 5. CENTRIFUGAL COMPRESSOR Centrifugal Compressor The centrifugal compressor consist of impeller and volute. The impeller rotate at very high rpm (approximately 10,000 rpm) and create a centrifugal force and change the refrigerant gaseous into speed energy. The energy will convert the gas into pressure energy for compression.
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- 8. SCREW TYPE COMPRESSOR ScrewCompressor To minimize gas flow resistance, the gas is sucked toward the shaft direction, compressed and discharged.
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- 11. HERMETIC COMPRESSOR Hermetic Thecompressor and motor are connected and house in the same housing, which is hermetically sealed by welding. The hermetic compressor is air tight. If the compressor out of order, it is necessary to replace the whole compressor.
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- 16. COOLING TOWER PARTS Directassembly shaft and V belt assembly
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- 20. WATER TREATMENT The threepotential problems associated with cooling water are: Corrosion Scale/deposits Microbiological activity
- 21. WATER TREATMENT Controlling thesethree factors is critical in order to maintain clean, efficient and safe systems for all types of cooling; from comfort cooling to critical industrial process cooling. Corrosion will shorten the life of the equipment, Scale/deposits will decrease heat transfer and increase energy usage. microbiological activity will cause system blockages and potential health hazards.
- 22. WATER TREATMENT Understanding coolingwater characteristics is essential when choosing a chemical treatment program. Pre-treating cooling water, by mechanical means to remove excess hardness or alkalinity, is sometimes required in order to allow for increased cycles of concentration. Higher cycles of concentration result in reduced water and chemical usage.
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- 34. Chiller layout Gate valveinlet and outlet Cooler tube Condenser tube Chiller control penal Automatic release valve Chilled water sensor
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- 36. Condenser tube TXV Vibrationisolator Filter drier Pressure gauge Differential switch Compressor
- 37. Chilled water pump Chilledwater motor Chilled water pump
- 38. Chilled water pipesupply and return Chilled water In Chilled water out Gate valve Make up water inlet
- 39. Chiller control penal Microprocessor display
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- 41. Types of Maintenance Dailyrouting inspection Plan Preventive maintenance Corrective maintenance Half yearly maintenance Yearly maintenance
- 42. Type of MaintenanceChecklist (MIS) Daily checklist Weekly Checklist Monthly checklist Half yearly Checklist Yearly Checklist
- 43. Daily checklist General inspection Check abnormal noise and vibration Check temperature gauges reading Check pressure gauges reading Check water pressure reading Check any leakages at valves and flanges Check supply chiller water temp/pressure Check return chiller water temp/pressure
- 44. Weekly Checklist Weekly inspection Clean chiller plant room Check chiller water pump/motor Check condenser water pump/motor Check pump motor coupling Check cooling tower condition Clean cooling tower top tray Check cooling tower infill
- 45. Monthly checklist Checkchiller condition Check chilled and condenser water pump/motor condition Service cooling tower Clean cooling tower infill Clean strainer Service AHU
- 46. Half yearly Checklist Servicechiller starter board Chiller motor bearing analysis Chilled water motor bearing Condenser water motor bearing Check pump bearing Check motor pump coupling alignment Check chilled water pipe insulation condition (Polyurethane)
- 47. Yearly Checklist Check compressormotor assembly Check compressor oil system Check motor starter performance Check control penal system Check chilled and condenser water circulation system Service chiller main board Service cooling tower
- 51. Practical Simulation PPM/CM Using checklist to create practical simulation Chiller Cooling Tower Pump Motor Valve
- 52. CHILLER MAINTENANCE Check and serviceAutomatic air vane Bleed off Condenser water at cooling tower Bleed off Chilled water at chilled water return pipe
- 53. Introduction to roboticduct cleaning services Ensure fairly particles removal and access to ventilation system Reduce labour cost Direct surface cleaning by motorized brushes Duct simultaneously clean on all sides Save time and money Benefits to clients as improved air quality
- 54. Duct cleaning equipment VISSIN-Remote controlled robot PROSOLO- Rotating brush cleaner for vertical or short duct PRO VAC- Hepa filter extraction unit VISSIN CONTROL COMPARTMENT- Remote control, LCD monitor, DVD recorder BRUSHES- Scrubber, circular, rectangular AIR WHIPS- Clean internal insulated duct
- 55. VISSIN- Remote controlledrobot Camera: CCD, auto focus, color, SVHS PAL, pan 270, view range 360 TV Monitor : Color, 10” VCR : VHS, PAL or NTSC Working Radius : Standard 30 meters Compressed air : 300 liters/minute, 7-8 bars Power supply : 230V or 120V, 5A
- 56. PROSOLO Rotating brush cleanerfor vertical or short branches duct
- 57. PRO VAC Hepa filtrationextraction unit that attached to the ducts to extract contaminants
- 58. VISSIN CONTROL COMPARTMENT Rigid wheeledcase contains remote control, LCD monitor, DVD recorder
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- 60. AIR WHIPS Clean internalinsulated duct to prevent surface from damage
- 61. Robotic duct cleaning Ductsizes for cleaning: Round ducts: 300 – 800mm Square and rectangular ducts: Width, minimum: 250mm Height: 200 – 500mm For inspection: Minimum height: 165mm
- 62. Robotic duct cleaninglayout
- 63. Robotic duct cleaning Videopresentation of duct cleaning