Shenzhen Guanglong Technology Co., Ltd.-- is a refrigeration equipment manufacturing company integrating design, development, production and sales. First, check whether the chiller is damaged during transportation. Then choose a place suitable for installation and future maintenance. Place the chiller. The installation site must be a floor, a mounting mat or a base level of 4-6mm. The weight of the chiller during operation; the chiller should be placed in a room at 4.4-43.3 °C at room temperature, leaving a certain space in the upper and surrounding areas for daily maintenance; cleaning should be reserved at one end of the chiller The pipe space of the condenser tube bundle can also be used for the door or other suitable position of the hole; select the water pipe of the appropriate pipe diameter, correctly turn on the cooling system and the cold water system of the maximum power operation of the chiller; for ordinary applications, pass the evaporator The water flow rate of the condenser and the condenser is allowed to be between 1 and 3.6 m/s. For the compressor to be a single unit, a single-machine test run experiment is usually performed. The industrial chiller assembly-compressor's empty load test run, air load test run, and vacuum test are important test runes that should be performed before the compressor load test run. Through these test runs, problems can be found early and solved, and good conditions can be created for the compressor to be put into load test operation. When the compressor is being tested, there are the following requirements: 1. Before the single test machine, the installation, commissioning and inspection of all the machines, equipment, instruments, electrical appliances, valves, etc. in the system are qualified, and all meet the test conditions. , request, and make a record. 2. No-load test run should be no less than 2h. 3. The empty load test operation shall be no less than 4 hours under the condition that the exhaust pressure is 0.25 MPa. 4. The oil level of the unit should be normal, and the oil pressure should be 0.15~0.29MPa than the low pressure side gas pressure. 5. The inlet water temperature of the cylinder liner cooling water should be lower than 35 °C, and the outlet water temperature should be lower than 45 °C. 6. The compressor discharge temperature should not exceed 130 °C. 7. The oil temperature and the temperature of each friction part should be loaded with the technical documentation requirements of various machines. 8. The single-machine test run of the industrial chiller should comply with the provisions of the technical documents.
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Industrial chiller maintenance knowledge
Industrial chillers are widely used in many industries and are not unfamiliar to many industries. How to use them safely and prolong their service life? The following chilling machinery technicians teach you a few tricks: First, the first point: keep the chiller filter The surface of the net is clean, the air around the filter is circulated, and the filter is cleaned regularly. Generally, the filter is purged once with compressed air for three weeks. Reduce the occurrence of mold "pour sweat" phenomenon. Before stopping the plastic machine, first turn off the cold water gate of the auxiliary mold, or turn off the cold water to increase the temperature of the water in the cavity, so that the mold will not produce rust. If the chiller has been used for more than half a year, or the high and low pressure engine often fails, or the cooling capacity is reduced, please arrange the technician to clean the radiator (if the chiller has a pressure gauge installed, the pressure of the high pressure gauge is higher than 300 PSI, if exceeded, The surface of the heat sink should be cleaned to keep it clean and improve the heat sink effect). If the fault persists after multiple cleanings as described above, please arrange for the staff to perform repairs. If the industrial chiller is out of service for a period of time, the pump pump may solidify due to the solidification of the water condensate. When the machine is turned on, the pump rotor must be loosened to prevent the pump blades from rotating, resulting in burnt fuses. (Applicable to chiller below 5) The cleaning of the chiller maintenance radiator first stops the machine, removes the filter from the front lower panel of the machine, and blows off the dust on the surface of the filter with compressed air. If the radiator is dirty, it should also be cleaned together. If there are conditions, spray the air-conditioning cleaning agent on the surface of the heat-dissipating net. After a few minutes, rinse with water and repeat until the surface of the filter is clean. Tips for cold and cold: The cleaning agent should be used with care. Do not touch the damaged skin. Do not touch the eyes. If it is inadvertently contacted, please wash it with plenty of water. You need to go to the hospital for treatment. The second point: common faults and troubleshooting methods of chillers, common faults and troubleshooting methods of chillers: turn on the power switch, the chiller power indicator does not light, 1 does not install the fuse, install the appropriate fuse. 2 The power indicator light is damaged and the electronic board is replaced. 3 power supply three-phase wiring error (note the auxiliary control line), check the wiring problem, turn on the power switch and the water pump switch to burn the fuse, the circuit short-circuit fault check control wire and the main power line pump rotor is stuck, use the screwdriver to loosen the motor rotor (for 5 chiller below water pump failure 1 pump motor coil short, open circuit, repair motor coil or replace motor 2 pump overload protector automatically jumps, the current limit of the protector is within the allowable range, half-pressed appropriately Reset button Compressor failure 1 Compressor coil is short, open circuit, replace matching compressor 2 Compressor overload protector automatically trips, adjust the current limit of the protector within the allowable range and press the reset button compressor Frosting 1 circulating water circulation or valve is not opened, check the water valve, all the pipelines, to ensure smooth flow, install short-circuit piping. 2 The circulating water pipeline is too small, and the diameter of the circulating water pipe is increased to ensure the normal water circulation. According to the temperature of the watch, the digital display is up and down. 1 The temperature control table is damaged. Repair or replace the temperature control table. 2 The temperature sensing line is in poor contact. Repair or replace the temperature sensing line. 3 The temperature sensing line and the temperature measuring body are dirty. Wipe the temperature measuring body. Icing in the circulating water tank 1 set the temperature too low to correct the set value 2 water in the water tank has no circulating water, short circuit water circulation between the chilled water outlet and the inlet 3 temperature control table out of control, replace the temperature control table high voltage fault heat dissipation The radiator is too dirty, the radiator can be cleaned, the air is not good, the ventilation fan is not working, the fan motor is burned, the short circuit is repaired or the motor is replaced by a high-pressure engine, and the high-pressure engine is not properly cooled or the pipeline is leaking. After replenishing the refrigerant or repairing the leak, repair the vacuum and replenish the refrigerant to dissipate the heat. The radiator is dirty, the radiator valve is not opened or the opening is too small, the radiator is cleaned, and the valve is fully opened. The third point starts and stops. : Start the status button on the keyboard, then switch the unit ON/OFF toggle switch under the keyboard to the ON position. The unit will perform a self-test. After a few seconds, one unit compression Start, the load is increased until the compressor starts another, once the unit starts, all these operations are automatically set according to cooling load (return chilled water supply temperature) changes or automatically. Normal operation: The unit operates normally. The controller will monitor the oil pressure, motor current and other parameters of the system. Once any problems occur, the control system will automatically take corresponding measures to protect the unit and display the fault information on the unit screen (details Please refer to the Installation, Operation and Maintenance Manual. During each 24-hour operation period, a dedicated person should permanently record the unit operating conditions at regular intervals. Shut down the unit ON/OFF toggle switch below the keyboard to disconnect. The position of the unit can be stopped. In order to prevent damage, even when the unit is shut down, do not cut off the power supply of the unit. The fan, water pump operation cooling tower fan, cooling water pump, cold water pump are independently controlled, and should be confirmed before starting the machine. The power supply is normal, there is no reverse phase, no phase loss. Before the pump is turned on, make sure that the valves in the pipeline are open. The above hopes can help you! For medium and small industrial chillers, the above-mentioned test run inspection has been carried out inside the company to ensure the reliability of the chiller and to fulfill the promise to the user - to ensure the cooling capacity, input power, etc. Performance parameters comply with relevant standards, samples and contract requirements. EVA sponge pad http://
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Specification size |
1220mm*2440mm |
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Surface Finish |
High UV coating |
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Thickness |
1-9mm |
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Color |
Customized colors |
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Hardness |
3H-6H |
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Materials |
PVC |
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Type |
Interior wall panel |
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Installation |
Easy installation |
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Life Span |
15 years |
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Place of original |
China |
PVC Marbling Wall Panel
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