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2023-05-19 0 Views

Analysis of the maintenance of the heating and cooling cycle machine

After installing the heating and cooling cycle unit, it is necessary to carry out the pipeline cleaning and sewage discharge, pressure test and leak detection, air discharge, trial operation of the cooling water and cooling water system, etc. um5Textile Testing Instruments, Testing Equipment Manufacturer


The cooling water and the chilled water of the heating and cooling cycle machine should be treated with water quality, because the water quality with high alkalinity will aggravate the corrosion of copper pipes and shorten the life of the heat exchanger, the system water should be used . The pH ranges from 7.0 to 8.5. um5Textile Testing Instruments, Testing Equipment Manufacturer


Press the SET button once on the thermostat of the machine with heating and cooling circuit and the display shows the current setting value of the thermostat;um5Textile Testing Instruments, Testing Equipment Manufacturer

This: Press the up and down arrow buttons on the thermostat to adjust the thermostat setting value, and then press the “SET” button to confirm the new thermostat setting value. Note. um5Textile Testing Instruments, Testing Equipment Manufacturer


Do not set the chilled water temperature too low, as the cooling efficiency of the unit will be reduced if the temperature is too low; um5Textile Testing Instruments, Testing Equipment Manufacturer


It may cause the low temperature protection to alarm and shut down. Just set the water temperature slightly lower than the required temperature, adjust it during operation if necessary, and adjust the water temperature according to actual needs. um5Textile Testing Instruments, Testing Equipment Manufacturer


If the unit is equipped with a high and low pressure gauge, after turning on the heating and cooling cycle machine, the index of the high and low pressure gauge can be observed to determine whether the unit is working normally . Normal high pressure working pressure is 12~18kg/cm2. The low pressure is 3-6 kg/cm2. um5Textile Testing Instruments, Testing Equipment Manufacturer


When starting the heating and cooling cycle machine, you should check whether the direction of the fan is correct. If he runs forward, he can be closedaged and operated. If it is reversed This means the power wiring is out of phase and the phase sequence needs to be swapped before starting. um5Textile Testing Instruments, Testing Equipment Manufacturer


The setting values ​​of the protection devices of the heating and cooling circuit unit have been adjusted from the factory and the user should not change them arbitrarily. um5Textile Testing Instruments, Testing Equipment Manufacturer


When the heating and cooling cycle machine unit has a fault alarm and stops, first press the unit's stop button (the alarm light goes out), and then check the cause of this and fix the fault and the machine does not force start before the error is resolved. um5Textile Testing Instruments, Testing Equipment Manufacturer


Do not turn off the device by disconnecting the main power supply, except in the case of an emergency. If the device is not used for a long time in winter, please turn off the power first, and then turn off the main power and drain the water in the system. um5Textile Testing Instruments, Testing Equipment Manufacturer


In order to equip the machine with heating and coolingTo keep the oil circuit clean and well ventilated, the condenser should be cleaned and decompressed regularly to ensure the normal and stable operation of the unit. um5Textile Testing Instruments, Testing Equipment Manufacturer


Keep the heat dissipation water tower clean, maintain air circulation around the water tower, keep the temperature low, and prevent debris from entering the cooling tower to reduce heat dissipation efficiency. um5Textile Testing Instruments, Testing Equipment Manufacturer


For the air-cooled type, please keep the surface of the heat dissipation coil of the cooling and circulating water machine clean to ensure the surrounding air is circulated and the temperature is low. Regularly clean the deposits on the coil to ensure good heat exchange effect. um5Textile Testing Instruments, Testing Equipment Manufacturer


If the cooling circulating water machine has been in operation for more than six months, the high/low pressure switch breaks down frequently, or the cooling performance is declining, please assign personnel to clean the condensators . um5Textile Testing Instruments, Testing Equipment Manufacturer


If you follow the above instructions several timesRepairs are being made but the refrigeration circulator warning alarm is still sounding {long beep}, then personnel should be dispatched to repair. um5Textile Testing Instruments, Testing Equipment Manufacturer

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