Maintenance first point: keep the surface of the chiller filter clean, air around the filter, clean the filter regularly, and generally purge the filter 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, so that the water temperature in the cavity rises, 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 repair. If the water is solidified for a period of time, the pump pump leaves may be solidified by the dirt. When the machine is turned on, the pump rotor must be loosened first to avoid the pump leaves not turning, resulting in burning the fuse. (Applicable to chiller below 5 liters) Cleaning of chiller maintenance radiator First stop the machine, remove the filter from the front lower panel of the machine, and blow 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. [4]
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 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 stuck, use a 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 off, 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. Temperature according to the table temperature display digital up and down 1 temperature control table damage, repair or replace the temperature control table 2 temperature line contact poor, repair or replace the temperature line 3 temperature line and temperature body is dirty, wipe the temperature body clean 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, and the ventilation fan is not working. The wind turbine is not working. Check whether the fan motor is burnt out. Short-circuit repair or replacement of the motor high-pressure engine is damaged. Replace the high-pressure engine and the refrigerant is insufficient or the pipeline is leaking. After replenishing the refrigerant or repairing the leak, repair the vacuum, and then add 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 switch on the bottom of the keyboard to the ON position. The unit will perform a self-test. After a second, one compressor is started. After the load is increased, another compressor is started. Once the unit is started, all the units that have not been operated automatically start and stop according to the change of the cooling load (refrigerated water supply and return water temperature).
Normal operation: The unit is in normal operation. The controller will monitor the oil pressure, motor current and other parameters of the system. Once there is a problem within a 24-hour operation period, a special person should permanently record the unit operating conditions at a fixed time interval. As long as the unit ON/OFF toggle switch under the keyboard is switched to the off position, the unit can be stopped. In order to prevent damage, even when the unit is shut down, do not cut off the unit's power supply. Fan, pump operation cooling tower The fan, cooling water pump and cold water pump are all independently controlled. Before starting the machine, confirm that the power supply is normal, no reverse phase, no phase loss. Before the pump is turned on, confirm that the valves in the pipeline are open.
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 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 stuck, use a 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 off, 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. Temperature according to the table temperature display digital up and down 1 temperature control table damage, repair or replace the temperature control table 2 temperature line contact poor, repair or replace the temperature line 3 temperature line and temperature body is dirty, wipe the temperature body clean 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, and the ventilation fan is not working. The wind turbine is not working. Check whether the fan motor is burnt out. Short-circuit repair or replacement of the motor high-pressure engine is damaged. Replace the high-pressure engine and the refrigerant is insufficient or the pipeline is leaking. After replenishing the refrigerant or repairing the leak, repair the vacuum, and then add 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 switch on the bottom of the keyboard to the ON position. The unit will perform a self-test. After a second, one compressor is started. After the load is increased, another compressor is started. Once the unit is started, all the units that have not been operated automatically start and stop according to the change of the cooling load (refrigerated water supply and return water temperature).
Normal operation: The unit is in normal operation. The controller will monitor the oil pressure, motor current and other parameters of the system. Once there is a problem within a 24-hour operation period, a special person should permanently record the unit operating conditions at a fixed time interval. As long as the unit ON/OFF toggle switch under the keyboard is switched to the off position, the unit can be stopped. In order to prevent damage, even when the unit is shut down, do not cut off the unit's power supply. Fan, pump operation cooling tower The fan, cooling water pump and cold water pump are all independently controlled. Before starting the machine, confirm that the power supply is normal, no reverse phase, no phase loss. Before the pump is turned on, confirm that the valves in the pipeline are open.
Description:
Compact design with sturdy diecast shell, fiberglass reinforced hard plastic insert and chuck type strain relief for secure clamping of all cables.
Female cable connector with Nickel housing and silver contacts.
Rugged Zinc diecast shell long lasting and durable.
Xlr Microphone Cables,Mic Cable,Audio Mic Splitter,Microphone Wire
CHANGZHOU LESEN ELECTRONICS TECHNOLOGY CO.,LTD , https://www.china-lesencable.com