Air conditioning in rooms is the “temperature core” of places such as data centres, industrial plants, especially in cities like xuzhou, which are hot and rainy during the summer, and where the failure of precision air-conditioning in refrigerated water rooms not only affects the operation of equipment, but may also cause data loss or disruption! Today we'll share a set of practical maintenance guidelines to help you avoid the embarrassment of air conditioning strikes
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Day-to-day inspections: 3-step rapid detection of hazards
The basic check-up takes five minutes a day to detect small problems:
Parameter monitoring: to see whether the temperature and humidity of the display screen are stable (normal range: temperature 18-25°c, humidity 40-60%), if large fluctuations may be sensor or control system failure
Appearance inspection: any leaks in the air conditioner casing and any noises in the operation of the hearing compressor (normally a smooth “humming” sound, if any, may be a fan or electrical problem)
3. Cleaning of filters: air filters are checked monthly and need to be replaced immediately in case of serious ash accumulation (dust jams windways, resulting in a reduction in cooling efficiency of over 30 per cent)。
Ii. Common trouble management: 3 moves for new players to learn
Do not panic when faced with these high frequency problems and proceed in a step-by-step manner:
1. Refrigeration deficiencies: first touch the condenser (outside) temperature, which, if heat is not available, may be a refrigerant leak, with pressure gauges to detect the pressure; if cold is too cold, it may be an expansion valve jam, with the need to remove the cleaning (recommended to be operated by a professional)
2. Serious leaks: emphasis is placed on checking whether the water supply is plugged, cleaning discharge holes with soft brushes, and checking whether there are cracks in the frozen water pipelines (in xuzhou, mei's rainy season, the pipeline is rusty)
3. Frequent stoppages: check if the overload protection is out of gear, possibly because the compressor is overloaded and it is sufficient to clear the condenser dust or adjust the belt tension。
Cleaning and maintenance: key to extending equipment life
Regular cleaning allows air conditioners to “breath well” and reduces their failure by 80 per cent:
Air systems: quarterly cleaning of evaporation wings (with special washing agents) and monthly inspections of wind belts, which are too loose and smooth to reduce their lifetime
Refrigerated water systems: water quality is tested once a year in march and in september, with appropriate accelerants (preventing piping) and cold water is replaced if the water quality is so poor
Electrical systems: the wind blower is used to clean up the end of the line and to check whether the circuit insulation is ageing (the hot and wet environment in xuzhou is most vulnerable to damage to the insulation)。
Professional maintenance: biannual “in-depth medical examination”
It is recommended that professional teams be engaged for annual maintenance, focusing on three core areas:
1. Compressor maintenance: detection of the quantity of lubricant (addition of the same type of lubricant when insufficient) and replacement if the oil is blacked out to avoid the death of the compressor due to poor lubrication
2. Control system calibration: the temperature control module, sensor accuracy is detected using a universal meter to ensure temperature fluctuations of 0. 5 °c
Refrigerated water piping: washing the interior of the piping with a high pressure water gun and removing water and mud (with a water thickness exceeding 0. 5 mm affecting cooling efficiency)。
The air conditioning in the refrigerated water room is operating steadily, with routine “small maintenance” and regular “large maintenance”. Remember, it's a failure. It costs less than half! I hope this strategy will help the crew in xuzhou to keep your equipment cool
