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The first point: keep the water-cooled screw chiller filter surface clean, filter the air circulation, periodically clean the filter, generally three weeks with compressed air purge the filter. Reduce the production of mold "swipe" phenomenon. Before stopping the plastic machine, turn off the rado turret of the spacer or turn the cold water machine to enhance the water temperature in the mold cavity, and the mold is not caused by rust. If the water-cooled screw chiller use has been more than half a year, or the high and low voltage engine often has faults, or the refrigeration capacity is reduced, please arrange the technical staff to clean the radiator (such as the water mixer with pressure gauge, whether the pressure on the pressure is higher than 300 psi, such as more than, The surface of the heat sink should be cleaned, keep it clean, improve the heat sink effect). If the above instructions are cleaned, the fault is still, and the staff will be repaired. For a while, the water pump pump leaf may be solidified by the water pump, and the water pump rotor must be turned to avoid the pump leaf when it is turned on. (Suitable for 5 Water Holfakes) Washing Machine Maintenance Slender First Stopping the machine, remove the front of the machine before the machine, and blow away the surface of the filter with compressed air. If the radiator is dirty, it should be cleaned together. If there is conditional, the air conditioner cleaner can be sprayed on the heat dissipation network. After a few minutes, the water is flushed, and it is repeated until the surface of the filter is clean.

Second point: a common fault and exclusion method of water-cooled screw chillers, a common fault and exclusion method of water machine: Turn on the power switch water-cooled screw chiller power indicator, 1 no fuse is installed, add appropriate fuse. 2 The power indicator is damaged and replaced the electronic board. 3 Power three-phase wiring error (note the auxiliary control line), check the wiring problem, turn on the power switch and water pump switch burning fuse, circuit short-circuit fault check control wire and main power line pump rotor card dead, use a screwdriver to turn the motor rotor (suitable for 5 pieces of water drill 1 water pump failure 1 water pump motor coil short, open circuit, repair motor coil or replacement motor 2 Water pump overload protector automatically jump open, put the current limit of the protector in the allowable range of half presses Reset key compressor failure 1 Compressor coil short, broken circuit, replace the matching compressor 2 Compressor overload protector automatically jumps open, put the current limits of the protector appropriately increased and press the reset button compressor within the allowable range Frost 1 circulating water flow or valve is not opened, check the water valve, all pipes, ensure smooth, and add short-circuit pipes. 2 The circulating water pipeline is too small, increasing the diameter of the circulating water pipe, ensuring normal water cycle. Temperature-in-Temperature display digital up and down 1 temperature control form is damaged, repair or replace the temperature-controlled table 2 The temperature of the temperature is contacted, repair or replace the temperature of the temperature line 3 temperature temperature line and the temperature glossy, the temperature is wiped clean Circulating water tanks 1 set the temperature too low correction set value 2 water tank in water without circulating water, short-fitting a circulating waterway 3 temperature control table out of the refrigeration water exit and imports, replace the temperature control table high pressure fault heat dissipation , The heat sink is too dirty, the cleaning heat sink is not good, improve the ventilation condition of the heat-dissipating fan does not work, check whether the fan motor is burning short-circuit repair or replacing the motor motor high-pressure system damage, replacing the high-pressure system refrigerant refrigerant insufficiency or pipeline leakage, After supplementing the refrigerant or leakage, the soldering is replenished, and the heat dissipation is refined. The heat sink is too dirty. The heat dissipation valve is not opened or opened too small, and the heat sink is clean and the valve is fully opened.

The third point starts and downtime: Start the status key on the keyboard, then turn the unit ON / OFF (On / Off) on the keyboard to switch to the Live (ON) location, the unit will make a self-test, a few After the second, a compressor started. After the load increased, the other compressor was started. Once the unit started, all the operations of all operations were automatically started according to the change of the cold load (refrigeration water retraction temperature).

Normal operation: The unit is operating normally, the controller will monitor other parameters of hydraulic, motor current, and system, once any problem, the control system will automatically take corresponding measures, protect the unit, and display the fault information on the unit screen, During the 24-hour run cycle, there should be a special time intervals permanent record unit operating conditions shutdown as long as the keyboard's ON / OFF dial switch is switched to the disconnected position, you can stop. To Prevent destruction, even when the unit is stopped, do not cut the power supply of the unit. Fan, the water pump operation cooling tower fan, cooling the water pump, the cold water pump is independent control, before the power is turned on, it should be normal, no reverse phase, no shortage. Before the pump is opened, it should be confirmed that the valves in the line have been opened.

How to adsorb technology work principle

Single effect absorption cycle is used as a refrigerant and hydrochloride as an absorber. It is very affinity, and these two substances work in each other. The whole process occurs near vacuum state.

1 Solution pump - 2 generator exits, heat exchanger - the action of thin upper housing solutions.

3 Evaporator - Lihaulic refrigerant Upward from the upstream housing to the downstream shell condenser and evaporator, the evaporator is sprayed in the tube bundle. Due to the absolute pressure of the low-shell extreme vacuum [6 mm Hg (0.8 kPa)], the refrigerant liquid has a boiling point of approximately 39 ° F (3.9 ° C), created the cooling effect.